Broadcasting Equipment (It's Verified)

SEPTEMBER 1976

90ADCAST MAP IENT/ENC-11'

It Source '76: Most Complete And Reliable Guide To Broadcasting Equipment (it's verified)

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PS a Arnnar 84 docls iint GAF. HarwcNOd l oP Canters Lan.. Anossaus 8L Can Commop Comma, 414 GAF Alan Gordon Hero SkInorM1 Tap. 2. Camara Tripods a films 6 Sawyer Cinema Produ Bairn e ttinclard ascsarioriao quip. Eclair GAF Alan Gordon H sc./es/Mem R'sssese,/: novanve TV RCA. .771 Mme. Carrying Cinema Produels Comps) Eclair Fr rf Carom v./nocr Ilnl GAF. Gard Camara Alan G) * Kodak Olean' Ztr'r* 412PAl'aira!!:4;11. " 144"arap;':Z!:S73.1:*:::a24R::;:F;;F '"" Flan Compuip Fur OAF' Soda, CCA CncA'RSC4; In) ' v Film Camel Olean NM4111111. Film Clemson Conmom Kodak. Upowas)man www.americanradiohistory.com Ward-Beck at the XXI Olympiad

The XXI Olympiad, a dedication to Ward-Beck is proud to have been excellence within the framework of chosen by Canadian Broadcasting competition. A challenge for the ath- Corporation to supply WBS 75046 letes. A challenge for the supporting Mobile Audio Consoles to broadcast communications equipment. the 1976(was) Olympic Games to the world. Tomorrow's Technology Today.

Ward-Beck Systems Ltd., 841 Progress Avenue, Scarborough, Ontario M1H 2X4 Telephone (416) 438-6550. Telex 06-23469 Ward-Beck Systems Inc., 290 Larkin Street, Buffalo, N.Y. 14210 Circle 120 on Reeder Service Card

www.americanradiohistory.com fix Incliona Now we can refurbish cy le Mark XV, Max. OCT-191976 iat makes us number one the world in quad head apability."

"And that's the truth."

IDEOMAX NOW REFWBISHES MORE KINDS F QUAD HEADS THAN ANY OTHER COMPANY IN THE WORLD.

You now have a single source for refurbishing RCA High Band and Low Band video heads and the Ampex Mark Ill, Mark X and Mark XV heads. No other refurbisher works harder at satisfying a broader range of customer services than Videomax.

TM videomax Videomax Corporation, An Orrox Company 3303 Scott Boulevard, Santa Clara, CA 95050 Phone: (408) 988-2000 Telex: 910-338-0554

SALES & SERVICE - New York: (212)947-8031, Los Angeles: (213)980-7927, Atlanta. (404)992-4490

Circle 121 on Reader Service Card www.americanradiohistory.com ..iii BROADCAST MANAGEMENT /ENGINEERING

SEPTEMBER 1976/VOLUME 12/NUMBER 9

6 Broadcast Industry News FM overtakes AM in 2 top markets; AM stereo to be discussed; mini-equipment scores at the Republican National Convention News Briefs p. 23 Business Briefs p. 25 People p. 174

28 FCC Rules & Regulations Multiple ownership rules, corporate ownership reporting rules amended

34 A Speak Out Series-Do You Need a Recording Type Console in Broadcast Applications? No says Carroll Cunningham of Dyma Engineering. Qualified yeses from Bob Ward of Auditronics and Nicholas Balsamo of Automated Processes

41 "True" Station Value Is Key Ingredient In Broadcast Financing An AM-FM station obtained a $2 million loan and a number of other advantages

46 How Similar Strategy Helps Three Different Stations Maintain Popularity In The Same Market Area Three different stations programmed to different audiences approach the problem of getting listeners in much the same way

50 Understanding Antenna Tuning Units The mystique of coils and capacitors clears up once it is understood that antenna tuning units behave like quarter-wave transmission-line transformers

THE SOURCE 1976 'ABP 57 Instant Source Locator BROADBAND Who makes it; 10 categories & over 180 subcategories of broadcast & cable INFORMATION SERVICES, INC. equipment, by manufacturer 295 Madison Ave. New York, N.Y. 10017 212-685-5320 75 Broadcast Equipment Manufacturers Names, addresses, telephone numbers, product descriptions-all verified Editor James A. Lippke 118 Independent Broadcast Reps/Distributors Senior Editor All major reps/distributors organized by state Robin Lanier 152 Measuring Television Transmitter Noise Associate Editor Four alternative noise measurements are described to get a true David Hawthorne picture of TV transmitter performance Art Director Gus Sauter 158 Great Idea Contest Six new great ideas to read about Manager Publication Services 164 Broadcast Equipment Djuna Zellmer BM/E's survey of new products Editorial/Production Assistant Janelle Seal 171 New Literature Circulation Manager Useful new reading material Sharon Fanelli BM/E, BROADCAST MANAGEMENT/ENGINEERING, is published monthly by Broadband Information FCC Counsel Services, Inc. All notices pertaining to undeliverable mail or subscriptions should be addressed to 296 Pittman Lovett Ford Madison Ave., New York, N.Y. 10017. BM/E is circulated without charge to those responsible for sfOrn operation and for specifying and authorizing the purchase of equipment used in broadcast facilities. These facilities and Hennessey include AM, FM, and TV broadcast stations; CAN systems; ETV stations; networks and studios; audio and video recording studios; consultants, etc. Subscription prices to others: $15.00 one year, $25.00 two years. Foreign: $20.00 en Publisher one year, $35.00 two years. Foreign Air Mail: additional $24.00. Copyright , 1976 by Broadband Information Services. Charles C. Lenz Jr. Inc., New York City. Controlled circulation postage paid at East Stroudsburg, PA.

SEPTEMBER, 197 4 www.americanradiohistory.com GRASS VALLEY GROUP Mod©Hil '_80E)=ITE. Switching System...

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With Rotational Wipe Effects

Model 1600-7K is a 24-input, 8-output, pro- bordered wipe operation is available with duction switcher with 3 mix/effects systems, most rotary patterns. plus program and preset buses with flip-flop mixing. Each mix/effects system provides Selection of a pivotal wipe is obtained by both rotary and conventional wipe effects. depressing a unique pattern button. Selec- tion of the rotational mode or splitting Several types of rotational transitions are mode for conventional patterns is achieved possible, for example wipes which pivot by first selecting the conventional pattern about a fixed point to produce a clock, wind- (e.g., a square), followed by operation of a shield wiper, or fan effect. The rotational "shift" key. A total of 54 patterns is avail- feature can also be applied to many conven- able. tional patterns to produce either a rotational effect or a splitting effect. A square or a Model 1600-7K is also available in PAL and group of 4 squares can be made to rotate as PAL-M versions. For additional information they expand in size. Separation of the transi- on the system, including a demonstration tion control levers allows independent con- video tape, contact your nearest Grass trol of size and rotation. Soft wipe and Valley Group field office.

THE GRASS VALLEY GROUP, INC. A TEKTRONIX COMPANY

Station Plaza East 4419 Van Nuys Blvd, Ste 307 1644 Tullie Cir, NE P.O. Box 482 810 W Bristol Street GREAT NECK, NY 11021 SHERMAN OAKS, CA 91403 ATLANTA, GA 30329 MABANK, TX 75147 ELKHART, IN 46514 (516) 487-1311 (213) 990-6172 (404) 634-0521 (214) 8871181 (219) 264-0931

www.americanradiohistory.com BROADCAST INDUSTRY

FM Beats AM In Two listing requirements for inclusion in in Washington, D.C. will fe Arbitron reports has increased 31% in papers by prominent communicatia Top Ten Markets the last six years. In the top ten engineers and policymakers includit Dallas-Fort Worth and Washington, markets, FM almost numbers the same "AM Stereo Broadcasting-A Ne D.C. are two top-ten markets found to as AM. The average ratio is 17 (FM) to Approach," by N.W. Parker and F.1 have FM shares higher than AM ac- 18 (AM). Hilbert; a dikussion of "Public Broa cording to a special Arbitron radio casting Satellite Interconnectic study. Dallas-Fort Worth's FM share The National Radio Broadcasters Con- Systems," by John E.D. Ball; as for the April/May 1976 survey is 48.5, ference, San Francisco, Sept. 19-22, "AREAPOP-A Broadcast Coverai up 27% in one year, while AM stations was previewed in August. An up-to-the Prediction Model," by Edmund a pulled a 45.1 for the most current minute report is covered in BM/E's San Williams of the Public Broadcastia sweep. Washington, D.C.'s FM share Francisco Survival Guide mailed to System. is 46.2, up from a 40.7 last year, and pre-registrants. Lionel Van Deer lin, chairman of tl against an AM total of 44.9 for April/ House Subcommittee on Commus May 1976. In the ten markets analyzed, AM Stereo Topic At cations, and Robert D. Briskman, a on an average, FM shares are up almost sistant vice president of COMP 100% from April 1970 to April 1976 IEEE Broadcast Meet General Corp., will deliver lunch* and up 10% in the past year alone. The 26th Annual Broadcast Sympo- addresses. For additional inforrnatis Arbitron, since 1966. has used uni- sium of the Institute of Electrical and contact: Vic Nicholson, Chairma form measurement standards to survey Electronic Engineers' (IEEE) Broad- IEEE B-G Symposium, Cable TV I both AM and FM radio audiences. The cast Group scheduled for September 23 formation Center, 2100 M Si number of FM stations meeting in the to 24, 1976 at The Washington Hotel, N.W.-Suite 412, Washington, D.' 20037, (202) 872-8888. Logging Rules Modified t Portable For AM, FM, TV Equipment In another aspect of deregulation, t r, FCC has: At The Republican Deleted the requirement for ii National Convention tialling changes on logs, as long as I log-keeper, when signing off, certif The RCA TK-76 ENG camera that all is correct, including a and the JVC CR4400U port- changes; for automatic logging s: able video cassette recorder tems, the person responsible must o (with TRI's SUN time code tify that he inspected the equipment added) were used generator the close of his duty and certify that by KCMO-TV to cover Yippie it work a - demonstrations, airport arri- the best of his knowledge vals, hotel goings-on, etc. properly throughout the period a Below a portable satellite that any part kept manually is corre base station by Comtech was combined into one the requirement used by Western Union to two entries, one identifying a co beam news to New York for mercial sponsor and the other show use by Independent Televi- that sponsorship's identification v.: sion News Assn. and re- over the air, (Docket 20600). 1 transmission to Europe. changes were effective July 9, 197 In heavy use, but not shown were Thomson-CSF RF microphone systems. Large Changes Ease Also new at Kansas City: Remote Pickup Rules video transmission via a light beam on American Laser The Commission has made substan Corp. system. changes in the rules governing censing and operation of rem pickup systems by broadcast static effective August 31, 1976, in the c tinuing drive for "deregulation Among them: remotes can be licen' as a group, or system, rather than; continued on PC'

6 SEPTEMBER, 1976-8- www.americanradiohistory.com w portable video AA-P44U Power Adap- Itte recorder/player tor, which also functions eyewitnessing as a battery charger. ws easier But the best way for you to find ver before. ut how this light-weight, low cost portable video-cassette system can as done two add to your newsgathering ability is to to improve get yourself a hands-on demonstra- -NG cape- tion. Call your JVC dealer, or send us we've made the coupon below. far lighter and we've lowered JVC's unique patented dubbing 'al cost. switch is provided to facilitate quality JVC Industries, Inc. tr brand-new CR-4400U Color tape transfers. For playback through 58-75 Queens Midtown Expwy. ble Capstan-Servo 3/4" U-VCR regular TV sets, an optional RF Maspeth, N.Y. 11378 its only 24.5 pounds, complete converter can be plugged right into Please send information on: echargeable battery and the deck. The CR-4400U operates on DO CR-4400U Portable Color 3/4" Video lard 20-minute videocassette AC as well with its companion Cassette Recorder/Player And it sits as lightly on your vO GC-48000 Portable Color Camera book as it does on your shoulder. New JVC CR-4400U Color DO CR-83000 Full Editing 3/4" Video Portable Recorder, shown with Cassette Recorder/Player lh the CR-4400U at your side, new CR-8300U Full-Editing set to record top-quality color Cassette Recorder, GC-4800U O I'd like a demonstration Color Camera, CC-4800U with a S/N ratio of better than Camera Control Unit and . There's a full-function key- Dual-Machine Remote Name Title Controller. , including pause/still and audio /her JVC features include audio Organization/Company and multi-purpose meter to audio, battery, video and servo Address I. Our exclusive auto assemble City State Zip Ag function enables you to get ':h, glitch-free edits between Telephone s, and can be operated by -a trigger or remote switch. With Ip time to full speed at less than cond, you're always ready to And you can shoot 50% longer, nce the CR-4400U requires 50% C ,ower than most other decks. JVC INDUSTRIES, INC. "127 for literature Circle 128 for demonstration www.americanradiohistory.com NEWS designed for television... 20 channels in 450 and 455 bands will be subdivided into 56 chat nels, to provide a total of 101: chat nets of several different bandwidd will be available, for "high fidelity, dispatching, tone signaling, etc: di number of bands for wireless mien phones is increased; the need to gi special FCC authorization for ope anon outside the station's area is elfin TYPE D-630 A inated; detailed logs on remotes al eliminated; the station can use remote Datatek for any type of programming (but sti not for "business" purposes, such dispatching sales staff, etc). (Dock. video sweep generator 20189). FCC: Earth Station Cost Can Be Shared Features: Cable television systems are free A split the cost of receive-only satelli Self contained video sweep earth station use with other no generator with internal or external affiliated cable systems, the FCC h. sync and blanking. announced in response to "many i Wide sweep range, variable up to quiries." However, the owning sy 10-0-20MHz or 20-0-10MHz. tem could not make a profit on the a Excellent linearity. rangement, since that would convert D to common-carrier status, with diffe Variable sweep rates from 20 sec. to ent licensing requirements, said tl 1/60 sec. Fixed rates at power line A. Modulated sweep. non-comp.. FCC. "Bona fide, non-profit, cot and video field (locked) frequencies. 2-0-20MHz. marker blanking 5MHz Manual sweep. intervals, variable stop markers at sharing arrangements are consiste 7.5 and 17.5MHz. with our policies concerning own B. Composite video sweep, 2 -0 -20M Hz Sweep range set by separate start marker blanking at 1 MHz intervals. ship and use of receive-only earth st frequency and finish frequency C. Detected non-comp. sweep, variable tions," the Commission noted. controls. Sweep reversible. stop markers at 7.5 and 17 5MHz. D. Marker pulses output. 1 MHz intervals (5MHz intervals evident) Built in frequency readout, Excellent Years Ahead fol switchable to show start, finish, TV, Radio, Says Report variable marker and sweep output frequencies. The broadcasting industry, includh both radio and television, has at lei Comprehensive marker facilities. five years ahead of high growth a Fixed markers at 1MHz and 5MHz Other Advanced high profits, according to a quartet intervals, color and aural subcarrier Datatek Products: economic report recently issued I frequencies. Two continuously Blyth Eastman Dillon, New York i variable stop markers. External Transmitter Phase vestment research firm. The rep( marker input. Equalizers and that both radio and televisi, Waveform Correctors points out have record years in 1976, w Symmetrical marker blanking in will Differential Phase & total TV revenues up 20% over the yt sweep output. Separate marker pulse Gain Measuring Sets prospect is for further output. before. The Envelope Delay creases in coming years because TV Internal or external sweep Measuring Sets now, and will probably continue to modulation, for applications including Video Waveform effectively "sold out"-there is vt envelope delay measurement, Equalizers little additional time to sell. w detected amplitude displays, etc. Video-Audio Routing demand going up. Higher rates are c Switchers prh Conveniently small unit, with signal tain; companies priced out of TV rad connector facilities for either front or Video, Audio time move to cheaper time or to & Pulse D.A.s BI: rear access. raising revenues in those areas. Eastman Dillon's analyst, Richard Steenken, believes that both radio television are now underpriced as -71M-7 vertising media; many companies t cut back on television, he says, DATAT E K perienced sales drops that have brow AllilLMIF CORP., them back on the air. The report advi investors to take a bright view of 1166 W. CHESTNUT STREET, UNION, N.J. 07083 outlook for investments in broadcast' (201) 964-3656 properties. continued on page) Circle 124 on Reader Service Card www.americanradiohistory.com SEPTEMBER, 197 the Star is Vital

L. 11maa.cta OsV 1.: L.: L L. L: 012E1002111113 LLUL L;OCIOCIMAIIIIII ' ,4". 6 L' L. /44p111."4" *; 11111 400;9 LLLL LLLL i A .4 L LLLL LULL fr LISP

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12, 16, 20, or 24 inputs. 4 bus, 6 bus, 8 bus or more bus systems. Choice of over 80 All digital waveform and quad split generators. exciting patterns Digital key edging, border, shadow and outline available on all ME's. such as star, heart, binoculars, Vari-key. Soft, hard, shadow, or keyhole, rotary clockwipe and more see-thru key. Digital quad split. Wipe or dissolve Vital Industries, Inc. is the first manufacturer to introduce in each quadrant. extensive use of digital circuitry in switching techniques. In Electronic vignette. Adjustable soft addition to superb electronics, we furnish a control panel pattern edges. that allows easy and frequent use of all features you buy. Superb linear chroma keyer. RGB Example is the separate illuminated pushbutton showing or encoded. pattern in use on each ME. No secret coding or delegation is used. Automatic transition control Automatic transition on each ME is furnished for pro- on each ME. fessionally smooth transitions of wipes, keys and dissolves. Ready to interface for computer The VIX-114 is the only switcher in the world that gen- aided operation. erates the star, heart, binoculars, keyhole and many useful Many more state of the art and and creative effects. operational features described fully Delivery now in ninety days. in series 114 brochure. rr Do not fear to discover a superior GOOD ENGINEERING IS VITAL )roduct in the VIX-114 series rvitchers. Ask to see the demo pe for a sample of what we can for users of switching equip - VITAL INDUSTRIES, INC. nt. You'll like it. MAIN OFFICE: 3700 N.E. 53rd Ave., Gainesville, Fla. 32601 Phone 904/378-1581

GORDON AORRELL BEAVERS Midwest ROBERT McALL Northeast GORDON PETERS Southwest ERIC KING PETERS West Coast 2644 North Seventh 34 Autumn Lane P. O. Box 912 Fox Hill Road 7960 West Beverly Blvd. St. Los Angeles, erre Haute, Indiana 47804 Hicksville, N. Y. 11801 Arlington, Texas 76010 Lynchburg, Va. 24503 California 90048 Phone 812/466-3212 Phone 516/735-0055 Phone 817/261-6855 Phone 804/384-7001 Phone 213/653-9438

Circle 125 on Reader Service Card #FEMBER, 1976-BM/E 9 www.americanradiohistory.com NEWS

Olympics Bring ABC $72111 A Minute For Spots Put yourself in this picture and find out why... Those spot ads we saw along seit ABC's excellent coverage of ibit MARC VII is here, ready to go to work in your Olympics in Montreal brought the nee LIVE STUDIO. Not automation, but a manual work $72,000 a minute, or a total eliminates cartridge handling at assist technique that about $41,000,000, according to unifies program control, reduces error, stops story in the New York Times. control-room confusion. and improves profits. ABC is! paid $25 million for the rights to tel.. the best there Call or write today and we'll show you the vise the games; but its profits were ob better way. viously much lower than that suggest A division of NTI 4041 Home Road Bellingham. Washington 98225 (206) 733-4567 because of the very high production 1GM cost of the Montreal coverage. Four FM Stations Join For Discrete Quad What appears to be the first discreet quadraphonic network broadcast ww carried out by a group of four FM stow tions in California late in July. In SE Francisco, stations K-101 and KBRC 111111 sal each broadcast two of the four char. nels; listeners were advised to tune it two stereo receivers simultaneously one to each station, to get the program All the programming was originated ii station K-101, which used four channel tapes and CD-4 records sources. In Sacramento, KZAP ant KSFM each took two of the channel: Circle 128 on Reader Service Card off a network feed, and again broaden the two "halves" of the program sepa rately, for listeners with two receivers. News Dept.:You can automatically charge CBS Says Net Radio 5 Ikegami BatteryPacks at onetime. Outdoes Spot TV

niltUoun ni .144n. 5.10.911. A study reported by the CBS Radio " gb, net, n. Network in late July indicates that I i work radio ads reach many more peoph in the top 50 ADI's than TV spots do That means net radio should be part o the "media mix" for many companies says CBS. Some of the figures de veloped by CBS in the study are: abou 59 million gross impressions for $127,400 budget on spot TV; about 131 million impressions for the salty budget on network radio, both fo adults over 18.

News Plan for New Jers Here's how: Just plug in [up to) 5 batteries,push the Scored By Governor Toweetoggle switchto"On'and leave them alone. The Federal Communications Con Only one Frezzi Battery Sequencer with built-in charger does mission's plan for ending New Jersey the job, automatically. In 12 hours (or less) totally unattended, VHF TV "famine," the assignment ( the Frezzi Sequencer brings each Battery Pack in sequence to one news crew and one corresponds its full-charge state. Each Battery Pack then goes on trickle. to New Jersey by each TV netwol and r Just unhook one (or more) & go. affiliate, was called inadequate, more than the stations are alreac For information call 1 N.J. 2011 427-1160 1N.Y.C.2121594-2294 doing, in a highly critical comment I' Governor Byrne of that state. He so Frezzolini Electronics Inc. that the minimum need was for stud facilities in the state. The FCC has p 7 Valley St. Hawthorne, N.J. 07506 USA off until September 13 a decision c whether to require each station to ha' continued on page ' Circle 127 on Reader Service Card

1 11 SEPTEMBER, 197611 www.americanradiohistory.com Regardless of who made your 2/3 inch Plumbicon* TVcamera, or where it was made Amperex has the exact replacement for the tube that came with the camera.

know this tube as only its origina- for delivery within 24 hours through t can know it. You can take our word local distributors and Amperex factory fi it... there is only one Plumbicon. sales representatives. And Amperex lid no matter where your Plumbicon tube distributors (your own local busi- cmera comes from, whether it's a full- nessmen), are carefully selected for s:ed studio camera or one of the new their ability to support Plumbicon TV end-held portables ... Amperex has camera systems with on-the-spot cus- t) replacements for your equipment tomer support and on-the-spot cus- tlt will give you equal or better per- tomer service. f-mance compared to any tube that came with For more information on Plumbicon TV camera ti) camera. tubes, write or phone: Electro-Optical Devices Divi- rThere is this difference. Amperex replacement sion, Amperex Electronic Corporation, Slatersville, es are immediately available, off-the-shelf, Rhode Island 02876. Telephone: 401-762-3800. Amperex TOMORROW'S THINKING IN TODAY'S PRODUCTS

A NORTH AMERICAN PHILIPS COMPANY

demark of N.V. Philips of the Netherlands

Circle 128 on Reader Service Card 1976-BM/E 11 www.americanradiohistory.com Sync? Think of the Possibilities!

When planning or modifying a facility A 1410 Series master sync system The 1410 Series can produce fui consider the 1410 Series of modular starts as low as $1925. Consisting of field test signals too. Modules al generators for sync generation. a 1410R Generator mainframe with available now for color bars, Iii Using a modular approach, the 1410 built-in color standard and an SPG1 earity, and convergence test signal Series allows you to select just the Sync Generator module, this eco- For more information about the 141 signal capability needed now. Later, nomical system produces broadcast Series, write us at P.O. Box 50 as your needs change, you simply standard subcarrier, sync, blanking, Beaverton, OR 97077; or use th add modules to meet those needs. H and V drives and black burst. For reader service numbers below. Since you buy only what you need a little more you can have genlock now, your costs are reduced. Since with the 1410R/SPG2 at $2125. you can add signal modules later, A 1410 Series sync system has sev- your investment will be protected. eral special features: Automatic subcarrier to horizontal sync phasing for example, important when editing or assembling committed to video tape. technical excellence Slow-lock operation, for those situ- Circle 129 on Reader Service Card ations where non-synchronous switching can cause problems. Adjustable blanking widths help maintain blanking duration within FCC limits. The VIR Signal, on line 19 of black- burst or in full-field format to record on video-tape leaders. Use of full-field VIR signal makes playback adjustment as easy as 1-2-3.

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ist facilities, and Governor Byrne Increase sharpness ... 40 he would wait until then before *ding whether to use action. improve camera C Airs Ad Council .1:)nomic Campaign sensitivity !ries of "public service" ads with air ccompanying booklet, prepared by ls Advertising Council to "educate () public in economics," is being by the National Broadcasting For the sharpest image, the finest

. ipany TV network, according to an resolution, the best picture quality in your )uncement there Late in July. The station's ADI, EEV's new 30mm Coaxial 's is being studied by the other net- Leddicon'' Camera Tube is the answer. (s; CBS has expressed a belief that Features the fastest leading edge n topic is one about which there is signal level rise and quickest trailing it ite, and that airing the series might edge fall of any image tube now on ..te ire them to air contrasting view - the market. Patented coaxial design htlt under the Fairness Doctrine. assures consistently accurate itporting this view is the statement by geometry and optimum registration Jiift ic Media, a public interest group, no matter the tube orientation. the series has an "inherent RESULT .. . a noticeably superior dc-orate-industry bias." The Ad- picture quality even under the wising Council has denied this most difficult lighting conditions. n.nwhile more than 700,000 copies Direct replacement for at le booklet, "The American Eco- most separate or integral mesh "f ic System and Your Part In It," are Plumbico0, Vistacon or older sk to have been distributed. Leddicon camera tubes. Available with exclusive Pblic Wants One Net At internal fixed or variable rime On Conventions light bias in extended red, t oil run by the Roper Organization extended green, luminance, id overwhelming public prefer- blue, green, red or s ,-an unprecedented 85%-for monochrome types. Call ng one network at a time cover or write today lx tical conventions, rather than for details. ng the three networks competing separate coverage. A rotation plan ned better, Roper reports, even to ons who might be classified as jcally and socially active-8I% of persons voted for rotation.

r I Will Make And Sell

t -oudja Image Enhancer image enhancer which has been :d the "Crisp-Matic," made by s Faroudja, Inc., of Los Altos, Leddicon is a registered , has been licensed by that firm to trademark of English Electric !vision Microtime Inc. for exclu- Valve Company Ltd.

manufacture and sale. The stand- Plumbicon is a registered of N. V. Philips' ,. ie enhancer, to be by TMI trademark marketed of Holland LI 2,r the name "Image Ex," operates applying comb filtering, noise L, ng, and frequency synthesis to lrpen luminance transistions, ove color cross talk, and reduce EEV NORTH AMERICA TMI has already used the en-

, :.er with their 2020 time base cor- ENGLISH ELECTRIC VALVE NORTH AMERICA LTD. or, and will later add it to other 1 NY 14225 1"s that are in the field. American Drive Cheektowaga, (716) 632-5871 TWX: (710) 523-1862 a Wants More Reins On 67 Westmore Drive Rexdale, Ontario M9V 3Y6 ;'.ble; NCTA Wants Less (416) 745-9494 Telex: 06 965864 1 ng from opposite sides of the A member of the GEC English Electric Group of Companies continued on page 14 Circle 130 on Reader Service Card

,TEMBER, 1976-BM/E 13 www.americanradiohistory.com exclusive rights to. NAB argues that very effective in "location" ad prods NEWS stations outside the top 50 need this tion, according to experiences repor, protection, in many cases even more by WCLY-TV in St. Petersbu cable-broadcast battle line, the Na- than the top 50 do. For its part, the Florida, and WDCA-TV, in Washir tional Association of Broadcasters NCTA fielded a large team of witnesses ton, DC. WCLY-TV is using So asked the FCC to extend syndicated before the House Committee who em- portables, and Sony recording and et program exclusivity to all markets, in- phasized that the exclusivity rules and ing units. Jim Bradley, creative s stead of just the top fifty; and the Na- others are hampering the growth of vices director, points out that a "spe tional Cable TV Assoc. has urged the cable in many areas, depriving cable ad can be made on location and i House Communications Subcommittee subscribers of much program diversity. mediately shown to the client, wh, to break the "regulatory stranglehold" Portable Cameras Make makes the portable camera an on cable. Syndicated program exclu- valuable sales tool. Many "smalld sivity forbids a cable operator to import Ads Fast For Two Stations businesses, car dealers, shoe and do from a distant station a syndicated pro- Portable video cameras of high quality, ing stores, restaurants, service firr gram that a local station has bought central in the ENG revolution, are also that could not use TV advertisi before, can be served with mini-cam production, he says. At WDCA, RCA TKP-45 camera and a TR-f VTR have been installed in a spec van as a mobile commercial product, unit. This has proved a big success v. auto dealers, department stores, other retailers, says Bill Cast lem; production manager. New Survey Shows Tape Ahead of Film For Ads The tape-vs-film battle for top place the distribution of TV ads got an to-date assessment in a survey of so 500 stations recently completed for 3M Company, which shows that th stations now get 60% of their ads tape, only 40% on film. The study N released through the Videotape Prod tion Association in New York. study also showed that 75% of the tions transferred some or all film ad. tape; and also that 84% of the stati, getting ads on tape made some dub another tape for air or back-up. Mor Dubin, chairman of the Videotape F duction Association, said he belie the evident continued trend to t arises in part from the growing use automation by TV stations. And it's all caused by a new machine called the ITC Advertisers Turning Aws 850 Series. Here is the result of a long series of consultations with broadcasters to determine what they From TV Violence? most desired in a reel-to-reel machine. Then we added a There's clear evidence at hand few innovations of our own. Truly, the 850 Series is dicating violence on TV will get ch equipment designed specifically with the professional scrutiny by advertisers this fall. At ' broadcaster in mind. Some 850 features: motion annual convention of the Amen sensing, multi-function edit mode, super quiet operation, Advertising Convention last June, automatic tape lifters, TTL logic circuitry, capability president of J. Walter Thompson I pilot studies by his agency indicate of handling dissimilar size reels. . .and more too lent programs have a negative effecl numerous to mention here. If you're in the market for products advertised in ti something new and vastly improved in reel-to-reel, sales of sections. a collect call to us will reveal an interesting story that In late July the National Citii you may have been waiting to hear. Make the real move to identii reel-to-reel...ITC. Committee for Broadcasting Collect number 309-828-1381. those sponsors who supported T least violent programs and those supported the most violence durirJ preceding six week period. They identified the ten least violent and,. mum-Iona TAPETROflICS CORPORATIOn most violent programs and ranked'' 2425 South Main Street Bloomington, Illinois 61701 networks: CBS, least, ABC, n NBC, most. Marketed exclusively in Canada by McCurdy Radio Industries Ltd., Toronto According to NCCB's Mich 5 continued on pag e Circle 131 on Reader Service Card

14 SEPTEMBER, 1976-i www.americanradiohistory.com Video Switchers... ;ape Editing Systems... Automation... Central Dynamics! itcognized Throughout The World for oltadership in Television Broadcast Equipment

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'6'EMBER, 1976-BM/E 15 www.americanradiohistory.com AGAIN & AGAI NEWS Johnson (former FCC Commissior POTOMAC MacDonald's has cut back on its sp sorship of violent programs after it INSTRUMENTS so identified. NCCB hopes that ratings of violent programs and sp sors will cause others to behave si First FCC Approved Antenna larly. A week later, Best Foods, a $24 r First Harmonic Reading Standard Broa lion per year TV advertiser, did ind issue guidelines forbidding f Field Strength Me r FIM-41 the chase of commercial time in or jacent to programs that contain "1 First Digital Antenna Monitor AM-19D(210) vasive portrayal of violence" (Bro casting, Aug. 9). First Frequency Synthesized Source According to BI Associates, Wr and Coherent Detettor ington DC, who have done the resea for NCCB, the product and advert most associated with violent televia First Solid State VHF Combination geld programming during the six we Strength Meter & RF Generato under study was Tegrin Shampoo. Others in the top ten, in order are: Clor Other FIRSTS to be Announced violence, Burger King, And Colgate Palmolive Products, Gill Hair Products, Breck, Ford, Johnso CONTACT US NOW FOR DESCRIPTIVE LITERATURE ON OUR Johnson, American Motors & Lys, COMPLETE LINE OF BROADCAST INSTRUMENTATION. The ten advertisers whose a mercials were associated with the It televised violence during the per. under study were: Aramid Radial II, , 932 PHILADELPHIA AVE. IBM, Lipton Products, No Nonse SILVER SPR2IG, MD. 20910 Hose, Oscar Mayer, Proctor & Gam APTOMAC INSTRUMENTS (15301) 589- 3N Foods, Raid, Frito Lay Produi Circle 132 on Reader Service Card Chrysler Corporation and Holiday I Those ten most violent' prop t were, in order of violence: S when high quality,operational (ABC), The Rookies (ABC), S (CBS), Sunday Night at the Mo' (ABC), Friday Night at the Mot ease and total product support (CBS), Rockford Files (NBC), Star and Hutch (ABC), McMillan-Colur (NBC), Saturday Night at the Mo' are called for, CALL AMPRO* (NBC), and Joe Forrester (NBC). Ampro's staff of broadcast knowledgeable sales and service engineers The ten least violent programs, will fulfill your audio needs with consoles, cartridge tape equipment and the networks offering them, were 1 other related products, including complete factory wired studio systems. Newhart (CBS), Mary Tyler Mc (CBS), Welcome Back Kotter (AB ti Ampro consoles come with 6, 8, 10 Chico and the Man (NBC), Rhc to and 12 mixing channels in mono, (CBS), Doc (CBS), the Prac dual mono, stereo, dual stereo and (NBC), the Waltons (CBS), L ' simulcast configurations. House on the Prairie (NBC), in input, 0 Channel Barney Miller (ABC). Stereo Console Although Variety reported AuF that the "Webs Brush Off Nick Jc - Ampro cart machines are available with son's Ranking of Shows of special features such as built-in lence"-largely because of splice finder, heavy duty motor mechanical nature of rating violent and fast forward. it appears more and more citizens I Stereo Recorder/Reproducer shun such programs and their sport; Ampro for: competitive prices with Splice Finder Option in the future. state-of-the-art engineering total product support. $1 Million for PBS News. Financing available ... call or write today. From Ford The Ford Foundation announced th fo AMPRO CORPORATION would grant $ 1 million to PBS in 850 PENNSYLVANIA BLVD., FEASTERVILLE, PA 19041 use the production of documentf and public affairs programming. *215-322-5100 (24 hours) The "no- strings" grant is in addi continued on pag Circle 133 on Reader Service Card

16 SEPTEMBER, 1976-1 www.americanradiohistory.com Your professional turntable =not match the performance or reliability of this one.

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www.americanradiohistory.com NEWS

to the $500,000 public television Maximize your modulation being established to help indepen television producers gain access If airways. These two grants are amples of the special funding tha "Zia to illiDitiDHE foundation said it would make pi broadcasting from time to time. %I, M11. began to phase out its massive tinai support of public broadcasting in It s, iThrri Standards for Antenna Towers Revised Model 230, $1500. Multiband Audio Processor The Electronic Industries Assoc!, At Inovonics, we've designed a Multiband Audio Processor for AM has issued a revision of its Stan and FM broadcast use which is capable of increasing average carrier RS-222-C, governing "Struci modulation to a figure approaching theoretical maximum. Yet it contains Standards for Steel Antenna To program peaks within absolute prescribed limits without clipping. and Antenna Supporting Structure Eight independent bands of average compression have attack This is the fourth edition of and release timing optimized for each; individual Threshold and Standard and contains several new Compression Ratio adjustments permit response shaping to comple- tions and notes regarding ladders ment specific programming formats if desired. Other features include gated expansion to prevent "pumping", platforms, antenna twist and s' program-controlled phase inversion and adjustable limiting symmetry for climbing and working facilities AM, and separate frequency-selective limiter with both 75- and clarifications of definitions concer 25-microsecond curves for FM. terms and analysis techniques. CD Copies of the new Standard ca purchased from EIA. 1INOVONICS INCORPORATED NBC Marks Its Golden 1630 Dell Avenue, Campbell, CA 95008 (408) 374-8300 Anniversary NB t Circle 136 on Reader Service Card The first commercial network, celebrating its 50th Anniversary. I began with the marriage of 9 radio

tions in 1926 has now proliferated - 230 radio stations and 217 TV stat This anniversary, however, is than the celebration of a single coq

tion . NBC, itself the progeny of at er American corporate giant, F began a commercial venture that cally altered the life-style of a natic fifty years NBC and its competing - works have formed the chief - nective tissue by which a nation ge s with this information and receives its Video Processing System tertainment. 191 Works with 1/4-inch to 2-inch VTR's-quad or helical scan- TV Networks Report accommodates large time base errors Profits EIA industrial sync or operate as master Sync generator will lock to or The three networks all reported I sync generator ink in '75, but only NBC show( 3600 burst phase adjustment increase in profits over '74. Provides complete video processing-inserts new sync and blanking, NBC profits increased 11.26% ;.° regenerates old burst or inserts new burst 1974 figures, making $73.5 milli( g. Provides full sync, blanking, and drive pulse outputs locked to input video, revenues of $573 million. Last subcarrier output locked to input burst NBC's profit was $60 million. Front panel control of video, chroma, pedestal, and burst phase CBS managed $106 million in p 4 i k Compensates for delays of one or more scan lines on $596 million in revenues, 3.6% from 1974. Competitively priced ABC suffered the largest perce Write or call today for complete specifications. drop in profits, moving down fror million in 1974, to $29 million id Pi video products a plunge of 4.0.8%. Revenues for amounted to $510 million. Road, Blue Bell, PA. 19422 DYINIASCII[EIES Township Line All three webs, however, e Tel.: (215) 643-0250/Telex: 84-6358 A SUBSIDIARY oFWIxitta.lo.er 1976 profits to break existing re( CBS for instance, is running well. continued on p Mole 137 on Roador Sondra Card

SEPTEMBER. 1976- 18 www.americanradiohistory.com WHO-TV Eyewitness News is all over town, doubling news on film.

"There isn't a single piece of newsfilm equip- much film and one-third of it is still being ent in this studio that hasn't paid for itself, broadcast. -le way or another;' claims Lisle Shires, "Our field reporters have some of the fin- -oudly. And that's only one aspect of their est film equipment available today. And m production facility that has doubled the although some of our film is still shot with nount of film coverage for half-hour shows silent cameras, we have a continuing program one year. to upgrade our sound equipment. "Presently, we're shooting all prestriped Kodak Ektachrome EF film 7242 (tungsten). You never can tell when we may want to add voice-over later or use silent footage as a B roll with sound effects. We're in the process of converting to the new Eastman Ektachrome video news film 7240 (tungsten) and while 7242 looks good on the air, we're looking forward to the finer grain and low-light capability of 7240."

_L.000 iii .le Shires, Newsfilm director of WHO-TV in Des ')fines, Iowa.

Jack Cafferty, WHO's Television News di- Etor, recalls: "WHO-TV used to average but six film reports per show. Then, man- ement made some drastic changes in news 3gramming. "We jumped from six to twelve film stories news show, as a result, and we now have a zen reporter-photographers. 7 "WHO-TV has always had a high percent- One of the most popular film features is "Cafferty is -, in which Jack takes on different jobs. Like driving a of film footage winding up on the air. Now semi or in this case, working in a hospital where he .'re shooting two to two-and-a-half times as first gives -and then gets -a cardiogram.

ire's Lisle with Robert Kress in the smooth- Cafferty anticipates continued heavy use Ictioning, surgically clean environs of WHO's of film. "With film, I can send a man out with tuxe processing lab. a 16-pound camera and he'll come back with pictures that are simple to edit -and to store, too. "One more thing -our news is getting a lot of attention. We've been getting very good response from our viewers. And that's what it's all about, isn't it?" Film is good

news. Kodak

Circle 138 on Reader Service Card EMBER, 1976-BM/E

Nrn www.americanradiohistory.com Introducing the Family()

Now you can add that perfect touch of editing professionalism to any news story or commercial on helical videocassettes with Convergence Corporation's Family of Fabulous Frame Finders. Discover how fast and easy it is to find any frame you're looking for and how simple it is to automatically do what you want once you're there.

SM-2 Joystick Search Module gives you incredibly flex- ECS-1 Joystick Editor provides, for the first t.- ible tape handling and remote control on a stand-alone VCR. style editing flexibility on helical videocassettes. r. The unique Convergence joystick allows you to see film editors converting to video tape find the ECS ' pictures at speeds continuously variable from still frame to to operate. In fact, networks and group owners arf- three times normal play in forward and reverse. The LED using the ECS-1 by the hundreds. Production hous tape timer lets you quickly screen and log news stories or found our Editor to be perfect for economical on-' commercials for pre-edit decision making. The SM-2 also off-line editing. The Convergence Editor is great h, programs precise on-air roll cues and lets you slave extra but it's fantastic when combined with the PC-3 and playback machines for NB rolls. TT-4 - the newest members of our Fabulous Famil,

www.americanradiohistory.com 4 Digital LED Tape Timer fits neatly under the mon- PC-3 Program Computer combined with the ECS-1 gives on a standard ECS-1. It counts control track pulses to you precise end insert timing and scene duration timing. ou know where you're at and where you're going. It's Insert and stopwatch functions are programmable with the what helical video tape editprs have been looking for. simple-to-operate PC-3 computer keyboard. Now you can TT-4 counts up and down and can be reset to zero or automatically preview insert edits as many times as you ?t to any number. It even times assemble edits to want and trim them up to ±99 frames from the keyboard. you accumulated program time. Buy it now or add What's more, plug your PC-3 into a TT-4 and get keyboard er. access to automatic bidirectional tape search. e the time and trouble out of your VCR searching and editing. Join the Family of Fabulous Frame ders today. They'll help you find exactly what you're looking for. For complete specifications and ress of your nearest distributor, write Department BME9.

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Circle 140 on Reader Service Card www.americanradiohistory.com history is being linked by the Hughes WS Television Network for this year's broadcast of the Jerry Lewis Labor Day DO st year and expects to reap at least Telethon. Two hundred stations have lay illion more in after-tax profits this joined the Telethon "Love Network," it than they had budgeted. to carry the program which benefits the Muscular Dystrophy Association. Baas Briefs Cox Broadcasting Corp announced it 111 has completed the acquisition of KOST-FM, Los Angeles, for $2.2 mil- illbedith Corporation Broadcast- lion in cash and notes. The acquisition mil Group stations, KCMO-TV, was approved by the FCC on May 12th, A410-AM, and KCEZ-FM, an- 1976 . . . . KMBZ Radio has become 110,ced plans to construct new admin- the exclusive CBS Radio Network affil- ive and studio facilities in Fair- iate for the metropolitan Kansas City, ing. Kansas. Certain operations, in- Mo. area, effective August 9th . . . . -'1111161 111111111111=0 k:lung the landmark tower, will CBS Radio also announced plans to Kansas . . . . wit in in City, Mo. open a CBS News Southwest Bureau Weiland got its first quad broadcasts in Dallas, Texas. Travis Linn, a former *tine 26th and July 2nd when Radio Dallas newsman has been named to e in Glascow, carried live the head up the new bureau . . . . KEYH 611 rn 76" concerts of the Scottish Radio, Houston, has received the >tanal Orchestra to its audience of 1976 Texas Associated Press Broad- 1-IA12R/5 -tar than 2 million people. casters Radio News Competition for 5ER v/C6 *11 id New York Broadcasting Cor- the best investigative story. The award ivertion has agreed to purchase three cited KEYH's investigation of the ceArreks olep systems from Covenant Cable events leading to the suspension of el; Inc., a wholly owned subsidiary of Houston Police Captain, Kenneth L. iniEd Street Communications Corp. , Nixon, in November, 1975. dco /hat has been called, "the largest Meredith Broadcasting is currently rexas tau transaction for CATV." Though negotiating with representatives of Ha( lie actual cash amount was not re- Poland, Yugoslavia, and Hungary for die :21, the sum is to be 03-4C5 estimated the possible exchange of children's (o) ave. WI $10.5 million, for the 35,000 programming for the 1976-77 season. .iecriber systems. The sale is a com- Meredith hopes to trade three of its pro- 40/9 achmod mie divestiture of cable interest for grams for the programs from the com- 7702 7 evillkd Street Communications. munist countries, to be included in its At least 40 exhibitors will /V. V series of 1/2 hour children's shows, WRK, siocipate in the 1976 Regional Con- "The Young Experience." AkKI 'eerion of the Pittsburgh Chapter of The CATV industry urged congress g0-6190 , (Society of Broadcast Engi- to immediately require the FCC to reg- (2/2) as ;) to be held October 22nd, at ulate the terms and conditions of pole tic and Johnson Motor Lodge, Mon- attachments used by CATV. Amos B. I30 6-34-111 .0.1 Ile, PA. Hostetter, Jr., executive vice president ai,.ants of nearly $13 million have of Continental Cablevision, Inc. and lee awarded under the Educational chairman of the Utilities Relations .dcasting Facilities Program Committee of NCTA told the House fi ;13) to help establish or improve 73 Subcommittee on Communications miommercial public radio and TV that cable's ability to provide television tins in 34 states and the District of programming and broadband commu- at mbia, according to an HEW Office nications service to the public was lucation statement. "gravely threatened by an unintended You can get the broadcast e longest wave-guide ever built and presently unregulated monopoly 19Ielevision broadcast has been in- parts and equipment you . . . . involving the ownership and con- tea d WKBN-TV , Youngstown, trol of utility poles and underground need. When you need it . Built by Dielectric Communi- conduits." them. From Harris' service itt the wave-guide consists of 138 A criminal complaint was filed centers. sely fitted sections of rigid against the Vornado Corp., owners of rr Mum, and runs a total of 1600 Two Guys Department Stores, alleging Isn't it nice to know we're The run is capable of conducting that the store violated the new Cali- here if you need us? iegawatt of radio frequency power fornia "theft of services" law, by ille- -`3 0 million cycles per second . . . . gally intercepting and demonstrating vt-W-TV, Tacoma, WA., is another Channel 100, pay cable programs, tom to have an operational receive- without paying for the service. The earth station for receiving 1nde- HARRIS complaint was filed in San Diego by COMMUNICATIONS AND !tient Television News Association John W. Witt, City Attorney, based on INFORMATION HANDLING *tramming, via satellite. The earth evidence discovered by the San Diego Mn became operational July 19th. It Bureau of Investigation. This is the first tinoys a 10 meter antenna, low noise complaint filed under the new law. ftfiers and TV satellite receivers When the Teton Dam burst in June, idttided by Andrew Corp KRXK, Rexburg was washed out by 'hie largest independent hookup of continued on page 25 "Ileridual TV in broadcast stations Circle 141 on Reader Service Card

OEMBER, 1976-BM/E 23

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REDUCED OPERATOR ERROR + 26 to - 90 dBm attenuator tremely fast measuring and little cht Here's something you'll like - Sound distortion measurements to .002% for operator error. You can measur, Tech's new distortion measuring instru- fast 5-second measuring speed 5 or 6 seconds. With ASL you ment for use in balanced work. automatic nulling, optional auto- measure distortion vs. frequency, I The new 1710A is much more than matic set level. distortion vs. voltage or power will tI just a distortion analyzer. It's a system. both harmonic and optional inter- resetting level. It contains its own ultra-low-distor- modulation distortion measure- IM OPTION tion generator tracked with the anal- ments. An additional optional bonus is yzer. It's a system that greatly simplifies SPECIAL OUTPUT CIRCUIT the 1710A also measures intermoe measuring gives you fast measuring - In the 1710A you get a transformer- tion distortion. After you've mac, with simple operation that reduces op- less audio generator output that's bal- harmonic measurement, just push erator error. anced and floating. No transformer "IMD" button. In 3 seconds you'll '1) For example, push the frequency but- means no transformer distortion. Float- the IM reading. With this option y tons and you set both generator and ing and balanced means you can connect be ready for future IM requirements analyzer. Push "Distortion" and you have to virtually any audio circuit regardless your reading. Automatically. No slow, CALL/SEND NOW FOR of configuration. And you can set the tedious manual null-searching. LITERATURE output from + 26 to 90 dBm in 0.1 Features in the new 1710A include: - It's worth while getting the info) dB steps. a balanced, floating output (600/ tion on this major new distortion r 150 ohms) FAST, SIMPLE MEASURING suring system. Call Larry Maguir a balanced (bridging) input Automatic nulling and the automatic Bob Andersen now and get our ` a high-level + 26 dBm signal set level option (ASL) give you ex- product brochure. It's ready and wail SOUND TECHNOLO GY 1400 DELL AVENUE CAMPBELL. CALIFORNIA 95008 (400337B-6540

Circle 142 on Reader Service Card E 24 SEPTEMBER, 1976- www.americanradiohistory.com WS STRAIGHT TALK FROM YOUR DITCH WITCH MAN waters which swept away its ismitter shack. KRXK is Re- rgh' s only radio station and its elim- "Let's talk about the on meant a loss of vital emergency 4 news to the town's 4,700 resid- call 1 A telephone from Idaho's reasons we offer ernor, Cecil D. Andrus to RCA m a chain of events that resulted in elivery and installation of a new 1 AM transmitter. KRXK was back FREE TRENCHER to air within 4-days of the Gover- ,r, call to RCA. VX-TV, Salt Lake City took a DEMONSTRATIONS." I r step towards completion of its ernization program with the pur- "We talk a lot about the many different jobs Ditch Witch 2 of 3 LDK-25 color cameras from can do. But we haven't forgotten many people need to dig s Audio Video Systems. Accord- trench and that's all. We know if trenching is all you need Ko the station, the modernization to do, you don't want to pay for features you won't 7am will make KTVX the most be using. cm broadcast facility in the United If trenching is your business, Ditch Witch is for you! We as . . . . According to David E. d of RCA Consumer Electronics, built the world's first service line trencher and have been Delevision industry expects to sell building the finest quality trenchers ever since. We have try 40 million color TV sets be- compact handlebar models, larger four-wheel drive trenchers now and 1980 in the U.S., "That and machines that can handle cross-country pipelines. s that more than half as many And wherever your work takes you, you'll find a Ditch Witch dc sets are expected to be sold in the dealer nearby with a full inventory of parts, and the )(Cour years as in the past 21 years." professionals to keep your Ditch Witch on the job. Isbitron study of night-time radio We'd like to tell you more about our trenchers. Better yet, tership has been completed for we'd like to show you what Ditch Witch can do. We'll bring !CC, as part of the "clear chan- one straight to your job for a free demonstration - IT inquiry; the study, associated no obligation. ocket 20642, is available for in- it to you ion at the FCC, 1919 M St. NW, "At Ditch Witch, we tell straight!"

ington . . . . New forms, Nos. IlL and 330-R have been prepared Call (800) 654-6481 Toll Free 1- applications for Instructional for the name of the dealer nearest you. *sion Fixed Station (ITFS) li- applications . . . . There will elpresent no restriction on owner- of cable systems by aliens, the 1).:1 announced, but said that a close sash would be kept for future need. -Seem Union announced it had con- - oiled a lease agreement for a trans- *rble Comtech Laboratories Earth 'Atm capable of transmitting and re- ainng simultaneously two color video gl,rls with accompanying audio. recently completed study by

I heel L. Ray and Peter Webb of zford indicates that long-time cers of TV series developed a dim that permits them to tune-out Inercials and that commercials run locks of 2 over 6 breaks get more stion than blocks of 6 in 2 breaks.

P isiness Briefs

ledith Corp., announced the sale 4 wheel drive, with three speed forward plus reverse transmission VHEN-AM, Syracuse to Roy H. 18-HP Model J20 - Broadcasting for $2 million Ditch Witch . . . equipment from 7 - to 195-HP.

. Time Inc. disclosed plans to e a multi-million dollar investment lotion pictures produced and dis- CHARLES MACHINE WORKS, INC. uted by Columbia Pictures. P.O. Box 66 e's investment will involve Co- Perry, Oklahoma 73077 continued on page 173 Circle 143 on Reader Service Card TEMBER, 1976-BM/E 25

www.americanradiohistory.com www.americanradiohistory.com The real disaster when your ENG camera oesn't work:'

Talk with a broadcast TV and the HL-37 (the Mini-mate) news cameraman and produce broadcast-quality cover- that's what he'll tell * age with good color, brightness, you. And that's why stability, high sensitivity even in more TV news z low light, and reduced lag due teams use Ikegami to bias light. Both can ENG cameras than feed video and audio all others combined. to a local or remote When you get only one video tape recorder, or via chance to cover a microwave transmitter re- news event, a de- ceiver for remote pickup. pendable Ikegami For microwave transmission from is the one ENG camera our HL-33 and HL-35 ENG cam- to use. eras to a remote pickup point, we The reason : The prime offer the Ikegami PF71 portable features built into Ikegami microwave relay system. This La G cameras are dependability and colorimetry. backpack unit transmits the video .rything else is icing on the cake. And the Ike - signal on the 13-GHz microwave ii of dependability with rugged- band ; audio and command signals on the 950-MHz 3, light weight, image stability, and simplified uhf band. Maximum range is about 1800 feet with rols, is why all three networks used the Ikegami omni antenna, 3700 feet with 60-degree horn, two 33 and HL-35 ENG cameras at the 1976 Demo- miles with a 20-degree horn. t-ic and Republican Conventions. And why they For the sound portion of the program, the Ike- .e used at the 1976 Summer Olympics. gami PFM-091 wireless microphone system is used Tow we have two cameras that are even better : to transmit program audio and receive inter- Ikegami HL-77 and HL-37. In the HL-77 we've com audio. It includes a compact transmitter' e away with the 261/2-lb backpack and tucked its and receiver worn on the belt, a miniature ctions inside the camera body-and still reduced condenser microphone, and a small head- HL-77's weight (less lens, but with viewfinder) set /whip antenna. pound less than the HL-35 head alone. The HL-77 We've got the specs on all this de- rghs in at 13% lb. In the HL-37 pendable portable equipment. ye split the package so the Just write for them, or ask for d weight (without lens) is a demonstration. And because less, and the shoulder- we have distributors in every hg process pack comes to major area across the country, .lb. you can get fast delivery and r loth cameras use three 2A- service. If you want depend- el`:1 Plumbicon* pickup tubes, ability, you get it from

P.i i f/1.4 prism optics. The view - Ikegami. More people do. zi is 11/2 inches. And every- ig else that made the HL-33 HL-35 the real winners at vni conventions is still there - Ikegami Aritt smaller and lighter. Ikegami Electronics (USA) Inc., 29-19 39th Ave., I r loth the new HL-77 (the Ike) Long Island City, N.Y. 11101 (212) 932-2577

Circle 144 on Reader Service Card

www.americanradiohistory.com INTERPRETING THE FCCFREGULATIONS

Multiple Ownership Rules, Corporate Ownership Reporting Rules Amended

By Frederick W. Ford and Lee G. Lovett Pittman, Lovett, Ford and Hennessey, Washington, D.C.

Two recent FCC rule changes promise to make in- TV network and a cable system, (2) a TV and a cat stitutional ownership in medium and large-size commu- system in the TV's Grade B contour, and (3) a cat nications companies more attractive and, at the same system and a TV translator in the cable system's cot time, cut down significantly on FCC paperwork. munity. In one action, the Commission eased its rules limiting As is apparent, these rules are pervasive. It appeE the institutional ownership of stock in broadcast and quite likely that a financial institution's large inveqmc

cable television companies.' portfolio would contain a stock in a widely-held broz I In a related proceeding, the Commission amended its cast licensee (or its parent corporation) and stock of ott rules to require widely-held corporate broadcast li- media companies, for which, without the 5% and I censees to file annual ownership reports (FCC Form benchmark exceptions, would violate the multiple ov.: 323).2 ership rules. Financial institutions and individual or corpon I. Multiple Ownership Proscription stockholders in a widely-held broadcast licensee (or In essence, financial institutions such as insurance parent company) that exceed the 5% and 1% ownerst companies, banks and investment companies may now benchmarks, and own or hold official positions (e.) own up to, but not including, 5% of the stock of vice president, director, member of the Executive Co widely-held broadcast licensees or cable television mittee) in other broadcast and cable companies, I systems (or their parent companies) despite ownership of deemed to have "cognizable ownership interests" whit stock in other media companies by these financial in- may place such stockholders in violation of the abo%, stitutions. A widely-held corporation is one having more outlined multiple ownership rules. than 50 voting stockholders. Individuals and corpora- tions (other than insurance companies, banks and in- B. Financial Institutions: 5% Benchmark vestment companies) may own up to, but not including, Insurance companies, banks and investment co 1% of the stock of widely-held (as defined above) broad- panies owning less than 5% of the outstanding stock o cast licensees or cable television systems despite stock widely-held broadcast licensee (or its parent) are r ownership in other media companies. deemed to have cognizable ownership interests for p These 5% and 1% "benchmarks" amount to ex- poses of the multiple ownership rules, regardless of hi ceptions to the Commission's multiple ownership rules much stock is also held by these institutions in otl (Section 73.240) and cable television cross-ownership media companies. rules (Section 76.501). Calculating the 5% benchmark figure for some vestment companies may pose a problem. For examf A. The Multiple Ownership Rule a mutual fund or closed-end investment company m There are really two multiple-ownership rules. The aggregate its holdings of stock in widely-held Comp duopoly rule prohibits: (1) the ownership, operation or A with any of the same stock held by a private pens control of two or more AM's, FM's or TV's whose fund if the private pension fund is managed by the specified contours overlap; (2) the cross-ownership of vestment company's financial manager. The ration any two AM's, FM's or TV's if the specified contour of underlying this requirement is that the manager's vot one completely overlaps the community of license of the control over the pension fund and the investment cc other station; and (3) a broadcast station and a daily pany shares of Company A can contribute to undue c, newspaper if the station's specified contour completely centration of control where these institutions also h encompasses the newspaper's city of publication. The stock in other media companies. Thus, a commor seven-station rule prohibits a company, its officers, di- managed mutual fund and pension fund, each hold rectors or stockholders from owning, operating, con- 3% of the stock of widely-held Company A, wo trolling or having any interest in more than seven AM's, exceed the 5% benchmark. This would mean that seven FM's or seven TV's (maximum five VHF's). media stock holdings of the mutual fund and the Pro. The cable television cross-ownership rules prohibit pension fund, including holdings in Company A, wo ownership, operation, control or interest in (1) a national have to be considered when applying the multiple 0' 'Report And Order in Docket No. 20520, 37 RR 2nd 803 (1976). ership rules outlined above; violation of the multi 'Report And Order in Docket No. 20521, 37 RR 2nd 740 (1976). continued on pap

28 SEPTEMBER, 1976-B www.americanradiohistory.com - Mention the name Amperex and what comes to mind? Plumbicon * TV Camera Tubes, of course. That's fine, but we'd like to remind you that Amperex is your one stop source for all these broadcast components, too! RF Power Triodes and Tetrodes for AM and FM Transmitters, VHF Power Tetrodes and Cavities, Vacuum Capacitors, UHF Klystrons, UHF-1V Triodes, Coaxial Circulators, High Voltage

Rectifier I Stacks and Tubes.

For complete information on Amperex Replacement Tubes and Components for: Radio & TV Broadcast Equipment RF Communications Transmitters I n d us tri a IP ower Amperex Supplies & Oscillators TOMORROW'S THINKING IN TODAY'S PRODUCTS Microwave Ovens & Commercial A NORTH AMERICAN PHILIPS COMPANY Radar Equipment Scientific Instruments... contact Bob Norris, Distributor Sales Operation, Amperex Electronic Corporation, Hicksville, New York 11802 Telephone: 516-931-6210. * Registered trademark of N. V. Philips of the Netherlands

Circle 204 on Reader Service Card www.americanradiohistory.com itsEicialtsE

... and the company whose innovations over the past utmost flexibility and economy for ENG, local remote 10 years revolutionized color television cameras in the and studio production... without compromise. And U.S. and throughout the world, now puts its 3-Plumbi- the LDK-11 is available now! con picture and a beam-splitter prism into the most Send for more information. Or, better still, have exciting new lightweight camera value on the market. your Philips representative set up a demo for you. The PHILIPS LDK-11. Full broadcast quality But do it today before you get TKO'd into anything for both ENG and commercial production! else. Broadcast Products, Philips Audio Video Systems Corp., 91 McKee Drive, Mahwah, New Jersey 07430. With the LDK-11 no longer must broadcasters or pro- (201) 529-380a duction companies sacrifice picture quality or operational features for portability. Broadcasters started PHILIPS' using the LDK-11 in January, 1976 and the reactions have been outstanding. A typical report from one of the first stations to get delivery..."the field pictures look as if they were shot in our studio!" Battery or AC powered and with full production control either remotely or at the backpack, the LDK-11 has all the key Philips engineering features that make it like no other comparable camera in the world. These features include Philips famed 3-Plumbicon* tube picture, beam-split prism with bias light and Philips linear matrix for superb colorimetry. Also included are H & V contours, auto iris, auto white balance, gen- lock sync generator, switchable gain and gamma, built-in color bars, remote VTR and zoom controls, and two audio channels. All this and more add up to the

Circle 145 on Reader Service Card for a demonstration Circle 146 on Reader Service Card for literature 30 SEPTEMBER. 1976- www.americanradiohistory.com FCC RULES AND REGULATIONS

wnership rule would be likely for a mutual fund having ny sizeable portfolio. However, aggregation can be revented in this case if the mutual fund divests itself of le power to vote the pension fund's Company A shares. The Commission's Report And Order went on to CHYRON affirm the requirement that stockholdings of common- -managed investment companies must be aggregated. nlike the investment company/private pension fund ...most advanced tuation, divestiture of voting power of the stock of one vestment company is unfeasible in the commonly- ...most imitated ,lanaged investment companies situation. This is be- tuse the stock of both investment companies must be ...most desired lted by one manager. Banking institutions are also subject to the 5% bench- ark, but it applies only to stock over which the bank is voting power. If the Company A stock is held in and when you consider: ust, but with voting power reserved, the shares are not tcluded in calculating the 5% benchmark. If the un- performance... Tected transfer of the original "res" of a trust (con- sting of Company A stock) would put a bank over the ro benchmark, violation of the multiple ownership rules ease of operation ... m be obviated if the bank (1) immediately informs the bmmission of the transfer and (2) submits a plan of maintainability... compt divestiture to the Commission. t ( Disclaimers customer support... The Commission has deleted the requirement that rtancial institutions file with the Commission "dis- and continuing

' aimers of intent to control the management or policies the 5% bench- ) ( portfolio companies" before utilizing development ark exception to the multiple ownership rules. Other Stockholders: 1% Benchmark of new features to Individuals and companies (other than banks, in- !ranee companies and investment companies) owning prevent obsolescence lss than 1% of the stock of a widely-held broadcast tensee or cable television system (or their parents) will ...most economical! of be considered in applying the multiple ownership and toss-ownership rules. This exception is carried forward bm previous Commission rules.

I Annual Ownership Reporting The Commission also amended its rules requiring tri- inual reporting of changes in corporate ownership by 'ficers, directors and stockholders. (This particular CHYRON wnership reporting requirement does not apply to cable levision systems.) ...SYSTEMS THAT .. The Prior Rule For the purposes of ownership reporting, the Com- LET YOU GROW iission's old rule distinguished between companies with 1) 50 or fewer shareholders and (2) more than 50 hareholders ("widely-held" licensees). Corporate roadcast licensees coming within the former category the industry standard fere required to report stockholdings of all officers, di- ectors and shareholders every three years at license re- for character and tewal time. The size of shareholdings was irrelevant; all graphics generators roldings had to be reported. Corporate broadcast li- ensees under the latter category had to report every hree years on the holdings of officers, directors and 1% r more stockholders (of voting or non-voting stock). 'or both the former and the latter categories, a supple- Dental ownership report had to be filed within thirty days )f any change of previously reported information. CIHIMDOIN SYSTEMS DIVISION OF CHYRON CORPORATION B. The New Rule 223 Newtown Road, Plainview, New York 11803 (1) Closely-Held Corporate Licensees The Commission retained the old rule completely un- TELEPHONE:15161 249-3296 TELEX: 144522 CHYRON PLVW continued on page 32 Circle 147 on Reader Service Card

EMBER, 1976-BM/E Li1

www.americanradiohistory.com FCC RULES AND REGULATIONS

changed for closely-held licensees. FCC Form (Ownership Report) must be submitted every three y at license renewal time. The holdings of all offic directors and shareholders must be reported. Fun more, a supplemental ownership report must be within thirty days of any change in previously rep( information. (2) Widely-Held Corporate Licensees The new rule (Section 1.615(d)) requires the an, filing of FCC Form 323 for widely-held corporate br cast licensees (e.g., with more than 50 shareholdo The first ownership report is due October 1, 1976, must reflect stockholdings as of any record date of corporate licensee's choice during the twelve-m period beginning October 1, 1975. The corpora censee should choose this record date carefully bee ownership reports for succeeding years must be Finally, a lightweight within sixty days of the anniversary date of this re date. It might be convenient to choose an existing (under 7 oz.) dend record date to obviate duplicative clerical For example, a corporate licensee might choose Ju Portable SMPTE 1976, because it would coincide with the tabulation complete list of stockholders (together with st,

Time Code Generator holdings) for regular quarterly dividend payment I poses. Our new minic Iture SMPTE Time Code Generator Because the Commission adopted an annual slips right into yo ur portable VO 3800 VTR - and you don't have to gc back to the studio for costly and ship reporting requirement, the supplemental own time-consuming after-the-fact source identification reports previously required have been abolish processing. widely-held companies. Henceforth, only a transf its Total weight- less than 7oz. 9 volt D.C. battery control of a corporate broadcast licensee (or a (in the form operated. Full LE D display. (Resetable.) will trigger reporting requirement Application For Consent To Assignment) Peripheral equ ipment gives you finesse of annual ownership reports. SMPTE even In a tight budget. - A distinction must be made between the owner These units mc ike excellent companions for an reporting rule and the institutional ownership rule? r existing DatatrorI Control Track system you want to widely-held corporate licensees. All 1% or greater s convert to SMPTE Time Code technology - or you ownership positions must be reported on FCC Form -) - can upgrade a basic SMPTE editing unit. They are for corporate broadcast licensees. This includes ow all fully compati Dle with your current equipment ship positions of financial institutions within the and, also, with o ur new dual system Tempo 76. ownership benchmark that exempts such institute : Units are 1-3/4' high and fit standard 19" racks. holdings from consideration under the multiple ow '- Check reader services card number listed ship rules. This distinction need not be made below to recei ire details on: closely-held corporate licensees because the 1% an( v New Portable SMPTES Time Code Generator benchmarks do not apply in the first place. (510 P) for use w ith portable VTRs. Mounts in VO 3800. C. New Rule Interim In Nature Code Generat4)r (Model 5150)- Can be locked The new annual ownership reporting rule ma to B I- station sync. uttered parallel BCD time and interim in nature. The Commission noted that the 5. status outputs. rities And Exchange Commission's "beneficial ow -

Code Reader ( Model 5250) - Reads code ship" proceeding is still pending. Once completed .c 1 forward and rev( Drse at speeds up to 60 times FCC may do one or more of the following: normal with no fr ame delay. Buffered parallel (1) Designate one date upon which all licensees BCD time and st atus outputs. Automatic drop frame file annual ownership reports; code direction. (2) shift the burden of reporting changes in s Character Gen lerator (Model 5450)11 charac- holdings from the corporate licensee to the s ters. Grey-to-bIck :k mask density. Adjustable charac- holder; ter position and ;ize. Compatible with 5150 or 5250. (3) raise the 1% ownership reporting benchmarl Digital DissolvE ,r (Model 5800)- Easy-to-

program dissolvE Ds from 1 to 999 frames. Remote Ill. Conclusion control available ). The FCC's two recent rule amendments should benefit to a variety of broadcast licensees and systems. Financial institutions will have sign& greater freedom to maintain stockholdings of cm? datatron, inc. broadcast licensees and cable systems, resulting EDITING SYSTEMS DIVISION broadened base of ownership as well as greater ni 1562 Re inolds Avenue Irvine, California 92714 liquidity in share trading. (714) 540-9330 TWX 910-595-1589 Cable RELIABLE The amended corporate ownership reporting rule result in significantly less paperwork on the Pei widely-held corporate broadcast licensees. Circle 148 on Reader Service Card 32 SEPTEMBER, 1978-4 www.americanradiohistory.com Watts your problem?

Harris offers the world's DAFC (digital automatic have a final amplifier efficiency most complete line of FM frequency control). of 80%. All are available broadcast transmitters. From All transmitters have an for prompt shipment. 10 to 40,000 watts. All with a INTERMODULATION Write Harris Corporation, TE-3 100% solid-state exciter specification of 0.5% mono and Broadcast Products Division, employing DCFM (direct carrier 0.5% stereo. EFFICIENCY - Quincy, Illinois 62301. frequency modulation) and the 20 and 40 kW transmitters

ED ED E-.1 41111. 0 FM-40H3 CI CI CI =I

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Circle 149 on Reader Service Card 'EMBER, 1976-BM/E 33

www.americanradiohistory.com Do You Need a "Nor'/says Carroll Cunning" President of Dyma Enginee Recording Type To Kick Off a Debate.

U Console Programming and production people look at "reci ing" consoles that resemble the cockpit of a 747 they are filled with a deep longing to be in the pilot s In Broadcast That longing often becomes so strong that they succ

in convincing engineering and management that v they need is a "recording type" audio console Applications? which to do "production." To be sure, programming and production people tainly do need some of the capability and flexibility fered by a recording type console, but probably the thing in the world they need is a 30-channel mon A Speakout On designed to do tasks completely different from broadcast job. It is time for a little engineering and n Audio Consoles agement restraint. This then is a brief explanation what the difference is between a broadcast audio con and a recording console and why a recording con e seldom fills the broadcast need. The purpose of a broadcast console is to process, "Speak Out" is a new feature in BM/E. Last trol and distribute various kinds of audio signals' month Ed Di Giulio spoke his mind on "knee should be capable of doing other control jobs relate) jerk reactions" in hopping on the ENG those audio signals and related to its environment.r bandwagon. This month Carroll example, mute the control room speaker and turns Cunningham speaks out on what he sees warning lights. Broadcast audio consoles have a as an "emotional swing" by broadcasters to microphone inputs, a couple of turntable inputs, asso "recording type" audio consoles. To tape recorder inputs plus some off-the-wall auxil encourage inputs for signals which range all the way from "t further dialogue on this subject and processed" to "dirty, weak and noisy." we sought out rebuttals to Cunningham's So right off the bat it appears that a broadcast con opinions by other industry pros for doesn't need 30 channels of microphone inputs; it simultaneous publication. The exchange is need 30 channels, but they don't have to have 60 dB 1 illuminating as well as provocative. and they all don't have to have equalization-espec We intend to do more of this in the future. one with fourteen controls on it. (Who has that n1 The positions taken will be argumentative time?) Abruptly, the channels have stopped being ick - though we will not always follow the debate cal. Yet, that is what a recording console is all abo - format. Next month Dave MacDonald of that is the job it's got to do-it has to take 30 a r Sony Corp. speaks out on using 35mm film similar signals, i.e., microphone inputs (genes process them thero techniques in producing in various ways, and distribute video shows. We'd various places. like to have not only manufacturers but A recording console very rarely has any facilitie broadcasters too, become advocates, starting and stopping the various machines assoc protagonists, and critics in this "Speak Out" with it. It rarely provides any muting facilities for mt 8 forum. This is an opportunity for all the monitor speaker, and it is rarely layed out to acci. concerned members of our industry to air modate the frantic pace of either on-the-air disc joc views on equipment, controversial or broadcast production people. (The production prc, industry practices or whatever subjects you for recording is vastly different and vastly more !elm wish to speak out on. Let's hear what's on than the production process for broadcasting. Lite your mind-it's your turn to "Speak Out!" hundreds of hours can be spent in post-produi'Ll mixing of a three-minute tune, whereas the most' surely production of a one-minute broadcast spot I - like time compression contrasted to the patient. re tive meticulousness of mixing music.) When a bi caster buys a recording console, he buys a lot of stti doesn't use and misses a lot of things he needs.

Modularity can be carried too far Recording consoles, since they usually have at number of channels with very similar requirements continued on pa

SEPTEMBER, 1976- www.americanradiohistory.com I

offers so many advantages for so few additional dollars. ihoose Wisely And You Maintenance is a small, but valid consideration. Beyond an Immensely," that are low cost and ease of expansion; physical re- arrangements may be made quickly as circumstances :Ns Bob Ward, Auditronics. change; and it becomes possible to move consoles around, so to speak, using "floating" modules which can be plugged into whichever of a number of main input "monster" console, may not be necessary in frames, needs the added capability, or size, at a given broadcast production/recording facilities, but such moment. ( mole main frame should have the ability to accept The flexibility in this type of system becomes almost een 10 and 20 inputs as a minimum. unlimited when every input module can accept either smaller approach forever limits capabilities to little microphone or high level sources. than voice over work which may be the original Problems associated with inferior quality plug-in con- :five, but restricts growth to simply a fancier way of nectors and low quality P.C. boards should not, by in- g the same as has been done for 20 years. The pro- ference, be attributed to quality production/recording iiive, successful stations we have seen are not consoles. Use of gold plated P.C. board fingers and good ng this short-range-thinking mistake. connectors with gold plated, bifurcated contacts makes ley are buying consoles to do a recording/production this a virtually non-existant difficulty. Reliability equals vhich is entirely different from on-air work. And in or exceeds that of solid state devices. .orocess showing considerable restraint and cost ef- Integrity of grounding and shielding is a critical factor ve planning. Those who choose wisely sacrifcie in any quality audio control system. Success depends on ring and gain immensely. proper design and installation. It is not necessary to sac- ie requirements of on-air consoles are well known to rifice needed features in order to accommodate proper

'ti casters. The requirements of sophisticated, multi- grounding. It is necessary to exercise great care. nel recording/reproduction are not as well known. Any builder whose products will not easily exceed the but is commonly known that one cannot get something requirements of broadcast in terms of crosstalk, noise, _t loth ing distortion, and RFI immunity should not offer a otonomies of design, that have historically made production/recording console. Failure to do this in- the, sometimes fail to meet the tests of practicality dicates most serious basic design errors. n measured against the new requirements of ex- Our production and design people have not yet learned rutted capability and performance. Inputs without that recording consoles are fragile by nature. They are tgilization are ideal for on-air boards, but in record- not going to either. We hope those users of recording ivoroduction, their use would be a major limitation. consoles who have had them in mobile and portable ap- vn tts which accept high level only make good sense in plications for years will not stop motor freighting and x9ing down the overall cost of a control console, but flying them all over the world because they are rose limitations in design', flexibility, and ex- "fragile." hilability completely contrary to the basic concepts of In conclusion, we don't feel valid indictments of a rivi-channel recording/reproduction. properly designed product/recording console in broad- ny properly designed and well thought out cast have been raised. As radio and TV seek to add the criuction/recording console will provide all the func- capabilities of recording to basic broadcast functions the s fundamental to broadcast on-air operation. Then it requirements to be met must be a blend of both arts. kw include all of the basic recording functions. The very concept of multi-channel production/record- intontrol layout will be planned to accommodate the ing dictates doing a different, much more complex job a pace of broadcast without oversimplification. Prod- than on-air audio control. Logically, consoles for this acpresently available makes it possible to buy exactly purpose must be different and more complex. This is no t is needed, no more or less. need to fear the new and different. It is to easy to learn he modular concept is widely accepted because it about it and grow.

desired in terms of quality. Audio boardmen have little Broadcast Type Unit Built opportunity to be creative. The broadcast audio console seems to be the biggest culprit. The console itself is mound Recording Technology usually inherently limited by the fact that it has relatively it few inputs and processing circuits to handle the im- Ideal," says Nick Balsamo mediate needs of modern daily programming. There is a it Automated Processes Inc. need for more flexible facilities to meet the new demands. In radio, a station's sound and programming is its he typical recording console is, of course, not suit- personality. This personality image builds audiences and tor broadcast application but neither is a traditional ratings. Ratings mean revenues. Since the audio console dcast console flexible enough for today's program- is the workshop of sound and programming, the broad- g needs. However, a broadcast-oriented unit built caster needs all the tools he can get. A 3 mic-, 2 turn- 4ind recording system technologies (and features) is table-, 2 tape cart-, I remote-, 1 tape input-to-mono- kg ideal and realizable goal for today's station wishing output is not even a decent work bench! toe ready for tomorrow. It is a fact that manufacturers of turntables, tape *lit broadcast audio (AM, FM, TV) leaves much to be continued on page 36

EMBER,. 1976-BM/E www.americanradiohistory.com boards make marvelous pick-up antennas.) CUNNINGHAM cont from page 34 Further, recording consoles are more fragile (or L rugged, depending on your point of view) than broadc have the electronics and controls manufactured identi- consoles, despite the large number of stories concern, cally. Thus, one can be interchanged for another-a very the propensities for recording engineers to spill eve handy maintenance feature. Since a broadcast console thing on them from pot to coke. They are more frag doesn't have a large number of identical channels, one of because they have to do more things. They are, the major reasons for having a modular audio console is course, layed out differently than broadcast consol beginning to disappear before our very eyes. That is, the human engineering for a recording sessior There are several more arguments weighing against vastly different from the human engineering involved modules: the modular console, while having numerous broadcast production or broadcast air work. advantages in low-cost assembly of the modules, has a We have to admit we are impressed by some of

major disadvantage of requiring a substantial amount of vast and beautiful recording consoles we have seen a duplicated metal work which runs the cost up, and it we respect the folks who run them. Both make sot tends to run it up faster than the savings that can be made remarkable contributions to the world of audio. But from repetitive production of identical components. have learned the hard way that such consoles were All of these modules plug in-on a big connector- and are not designed or built for broadcasters. The pn and all of us know the most unreliable thing in any lem they solve is a problem different from the one fac electronic assemblage is the connector to which it is by a radio or TV station. attached. This doesn't mean that the components in any A broadcast console should feature card-frame, ph console shouldn't be plugged in-they should! (Is the in electronics, as identical as possible, and as little ell back side of the front panel the best place for electronics tronics as possible. Most recordings have already be to be?) But they should be smaller, less vulnerable very carefully and painstakingly equalized and requ groupings with ample opportunity to preserve the integ- no last minute tinkering; we do not feel further equ rity of the grounding and shielding scheme. This is a very izing this material is desirable. All tape sources feedin important matter in the case of a broadcast console since broadcast console should have had the material equalii it often must handle completely diverse program mate- before it was put on the tape. That is, if it's a cart ti rial, whereas a recording console does not. The shielding machine and equalization is required, the product t and isolation and grounding schemes necessary to keep people on the output of the console should have equ cross-talk between channels on a broadcast console are ized it. The concept of the modular console is an

vastly more demanding than in the recording industry tremely over-rated one based on the job that it has to c

where different program material rarely is handled at the It is expensive, it is unreliable and it often fails to do t same time. job intended because of the foreign environment The connector requirement for modules raises another which it has to operate. A broadcast console should serious bogey, particularly in broadcast consoles that layed out to provide as many operator conveniences must operate in RF environments. Not only do con- are conceivable: automating a large number of the reps nectors (and their concomitant imperfect connections) tive functions, such as routine switch throwing and g make lovely RF detectors, any less-than-optimum riding, that the operator normally has to do manu grounding system can seriously increase the susceptibil- and providing accessible machine controls, ad ity of the unit to the station's own radiated field. (Mother warning lights and mute closures.

this is necessary for mix-down flexibility. Typically c BALSAMO cont. from page 35 input channel will have an input fader, Mic-Line swib ing, output assign switching, echo assign switching, machines (cart and reel-to-reel), limiters, compressors, assign switching, equalization, solo, channel "on" equalizers, exciters, modulators and even transmitters, muting. Other accessory items may be quad and stet have been upgrading their quality, recognizing the fact panning, overload indicators, pre-post fader switching that audio has to be improved to make the broadcast echo or eq., etc. The interesting point to note is that end-product more palatable to the sophisticated con- input strip is multiplied by the number of input chann sumer. Yet today, the audio console in use by most (16, 24, 32 inputs typically). This replication represe broadcasters is limited by technologies developed a 70 percent of a recording studio console. The rest decade or more in the past. assigned to monitoring, multitrack playback fact For quite some time now, quality, creativity and flex- (again a redundant section in itself) echo returns, mat ibility have been of paramount importance for a record- faders and metering. Yes, one looks at a console of t ing studio. Today's recording artists and producers size and says, "How do you know which button to pi demand it. While much of the flexibility comes from the first?", or "You need some kind of masters degree use of multitrack tape machines (8, 16, and 24 tracks), engineering to even turn this thing on." Not so. that is only half of the story. For it is the audio console individual who operates the recording studio consolt that is the "hands on" working area for creating the no different from the operator of a broadcast cons finished product that eventually ends up on the air. The during a live show. They both must be responsive to console must he the highest quality and possess, in its the pressures and hecticness that is concomitant cabinetry, all the electronic "goodies" needed for the artists, producers, and directors trying to create their, demanding flexibility that is required to process audio as product. we know it today. A well-designed modern broadcast console is n Much of the electronics in recording studio consoles forest of buttons and switches seen in the rec are redundant and cause the console to he quite large, but continued on

36 SEPTEMBER, 197 www.americanradiohistory.com :hopping for a Atribution Switcher?

SAVE SPACE.

u, of our competitors describes their 40 x 60 AFV ,atcher as occupying only two equipment racks. An attivalent TVS/TAS-1000 switcher takes about 2/3 of a Or le rack - without compromising performance specs ILlio hum and noise measures -80 dBm on the TVS/ DA;-1000 vs. -57 dBm on the competitive unit) and rtnout use of single-source custom hybrid components.

TEND LESS.

rither competitor boasts of video switching at less tit $30 per crosspoint. The TVS-1000 sells for as ate as $23 a crosspoint, and this price includes profes- DC al quality vertical interval switching, on-board 10tronic latching, and 100% computerized testing of uharameters through all crosspoints. 1.W 40 x 50 AFV Switcher SPECIFY THE SWITCHER WITH PROVEN RELIABILITY.

.Tvs,TAs_1000 is more reliable because its simple gn requires fewer active components in the signal TVS/TAS-1000 Video/Audio 4l.,,, i. This reliability has been proven at installations Distribution 1 ughout the world in configurations ranging from Switchers OC: 10 to 80 x 50. To find out more about the one mcher offering compact, cost-effective signal distribute with true broadcast quality and reliability, contact in.nearest TeleMation sales office. TeleMation cao the discovery people

Mation, Inc. P. 0. Box 15068, Salt Lake City, Utah 84115 (801) 487-5399. Other sales offices located in: San Francisco 51 348-3322 Los Angeles (213) 845-7831 Chicago (312) 729-5210 Atlanta (404) 451-1801 Washington, D. C. el) 937-8700 New York (212) 575-1466 London Rio de Janeiro Sao Paulo Santiago Mexico City Cairo.

Circle 150 on Reader Service Card %ABER, 1976-BM/E 37

www.americanradiohistory.com BALSAMO

mix-down studio. While based on recording studio WILL THE nical developments, it is human engineered in tern TELEVISION CHARACTER GENERATOR the controls presented to the operator. Controls grouped with on-air requirements in mind. Even si THAT YOU ARE CONSIDERING controls may be removed from the panel and p1 under the bolster to keep them undisturbed. Ne THESE AS INCLUDE recording nor broadcast equipment must break do% STANDARD FEATURES? must take physical abuse, slamming of switches faders, cigarette ashes, beverages and all other su happenings. * Practical Character Size Technical specifications of a professionally it factured recording console usually exceed specs reqi * True Horizontal Edging of broadcast equipment, i.e. crosstalk, frequencl . * 4 Page Elastic Memory sponse, distortion, headroom noise, etc. For examf Boston station was recently supplied with an 18-i * Window Format Positioning console made to recording studio specs. It contair * 20 Auxiliary Control Keys the necessary facilities, in modular form, for on-ai e as well as production and is extremely easy to us \ 24 Flag Function Combinations pushbutton switch on each input converts the inco

program from mono-to-stereo-to-quad with all the 1. * Crawl on any Display Line matrixing and levels. Typical specs are: clip level 01 Roll in any Display Segment outputs, +30 dBm; frequency response, mic in sole out, less than ±.5 dB from 30 Hz to 22 kHz 11

crosstalk in all channel combinations 86 dB maxir . WILL THE signal to noise ratio 104 dB; harmonic distortion ol than 0.1%, 30 Hz to 20 kHz at + 18 dBm into 600 SYSTEM PERMIT EXPANSION Flexibility, achieved only in modern broadcast 1- TO INCLUDE THESE soles, comes from the techniques used in recoi g studio consoles. Room for expansion can only 4,e IMPORTANT OPTIONS? from modular construction and leaving room in the )- sole with blank panels covering connector iu mother P.C. boards. Modularization allows a bt Independent Edit Channel caster to purchase a custom-made console with a reli- 3 Separate Output Displays able price tag-due to standard mechanical 1- figurations within the console frame and star - 6 Individual Elastic Memories "mother" P.C. boards with highly reliable military c Color Billboard Display P.C. connectors carrying all busses. Use of high qt operational amplifiers and standard switching techni Color Flag Control Function allow a high number of various plug-in modules t available that contain most of the electronics, whi Up/Down Time Counter now front panel accessible for easy servicing. Cusl- Time/Day/Date Generator izing a console usually means a combination of star 'd modules plus a few that are custom made. Data Cassette Storage Maintenance personnel need only change defe 'e e 9 x 14 Character Font modules by removing two screws and unplugging culprit. Lower-Case Characters Audio is becoming a critical factor in competitiv, ss Audiences are tuning in to thelc Foreign Language for the broadcaster. quality stations. In television, now that we have 01 Math and Chemistry Symbols quality color pictures, we need audio to match. SI. audio is in the wind for TV, quad for FM and sten of AM. In order to meet these demands consoles mu; 0. THE LAIRD TELEMEDIA be behind the times. 11 4

MODEL 3600 WILL! Cunningham rebuffs, briefly ... A broadcaster may need 30 channels-but not very often. Ev. certainly doesn't need equalization-99% of broadcasting is maximum of a half-dozen sources. Equalization is best done

mics or changing rooms . . Our experience shows modularize

rated and under used and not lowest 'Cost . . . Good connect ITLAIRD TELEMEDIA broadcasters know a huge percentage of system failures are IUTH WEST TEMPLE 501 45/ 6/51 INC' related. And connectors do interfere with idealized grounding a e SALT LAKE CITY, UTAH 84115 . A separate article is probably needed on specs. Nobody they measure it or what it means. Is clipping of 30 dBm at p Nobody ever says at what frequency crosstalk is measured at different at 20 kHz than at I kHz. Is S/N measured with a 60 dB g the circuit? What is harmonic distortion at different levels of mod Circle 151 on Reader Service Card required in a proof of performance test? . . I agree that we in behind. We've got better pictures than sound. Lets do something

SEPTEMBER, 197 www.americanradiohistory.com it 111.111;,':,"71,1411,11) 11'111111.011,-- 1111' ''":11 VIII

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ON SEPTEMBER 11,1975, THIS WAS THE SECOND HALF OF "THE HOLLYWOOD SQUARES: On September 11, 1975, WTVF scooped, all the Nashville news media with live, on-the- scene coverage of a riot in progress at Tennessee State Prison. They did it using some of the most advanced Electronic News Gathering (ENG) equipment available today. Equipment which included, not surprisingly, an ENG microwave system from the Communications Equipment Division of Microwave Associates. We at MA's Communications Equipment Division pioneered in microwave systems for ENG applications and are now the only company making a complete line of equipment. Everything from miniature battery operated transmitters to portable van models to fixed location transmitter/receivers. And we not only make them, we also do site surveys, installation, training, and servicing - nationwide. Small wonder we're now number one in microwave for ENG. Microwave Associates, Communication Equipment Division, Burlington, MA 01803. 617-272-3000. MICROWAVE ASSOCIATES

Circle 152 on Reader Service Card MBER, 1976-BM/E

www.americanradiohistory.com THE ADC 900 IS QUALITY!

RELIABILITY is the watchdog of quality management. With many 900 systems now approaching 20,000 hours of continuous operation with no significant downtime or maintenance required, we offer proven reliability.

Control hold system available to return matrix to Significant Features last state condition in event of power failure or dip Hold times of 20 minutes to 12 hours available. Exclusive use of high reliability standard and multi-sourced proprietary components. Fully redundant power systems with visual, aura and remote alarms available. Only 10 crosspoints per crosspoint module allows in-service maintenance with minimum disruption. Vertical interval switching standard on all systems Input oriented crosspoint modules which allow the superior shielding required to maintain extremely Use of an external combining matrix on system! low crosstalk specifications between either syn- with more than 20 inputs allows complete isolatio chronus or non-synchronus inputs. to the smallest matrix unit (10 x 10) for superb specifications. External matricing simplifies system' Individual, horizontally oriented output amplifiers timing, any input to any output, on large systems enable superior shielding between outputs and in- service maintenance with no disruption to other output channels. Customers Externally accessable control latching and decoding which allows in-service maintenance, no interaction Alabama ETV ORTQ Bell Labs RCA Camden between matrix frames and uses no unique codes or City of Los Angeles RCA. Ltd. non-compatible addressing schemes. All active con- Editel RTV Belgrade HCG Geneva S.I.U. School of Medicine trol components are plug-in devices. Jefferson Productions University of Louisville KATU University of Michigan KCTS USIA External control interface to allow use of multiple KGGM U. S. Navy control different types on a single system. KLAS Venevision panelsof KOLR WCAU Michigan State University WESH WETA Standard LED grid matrix status display on all NASA NBC - Burbank WPBT systems gives visual display of crosspoint status at N. J. Bell WTVJ all times.

Cambridge DIVISIOn AMERICAN DATA DIVISION Cambridge. Md. Circuit Breakers Et Switches Controls Division Ft. Lauderdale, Fla, AIRPAK ELECTRONICS, INC Tachometry 6 Control

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1729 WILMONT DRIVE 5604 WATERWAY 3260 WILSHIRE BL. STE900 29013 MULBERRY 233 W. HILL AVE ATLANTA, GA 30326 ROCKVILLE, MD 20863 LOS ANGELES, CA 90010 PASADENA, TX 77602 GLENN ELLYN, IL. 80137 404,633 2100 301 480 1464 213 3117.77156 713 941 7272 312 4696200 Cirrin 151 on Reader Service Card

www.americanradiohistory.com rue" Station Value Is Key gredient In Broadcast Financing Barry J. Dickstein

an AM-FM station obtained a $2 million loan-and a number of r advantages including no "equity kicker." oximately 10% of the nation's 7,000 plus com- availability, may compel broadcasters to place increased ial radio stations will face a major financing re- emphasis on expensive equity-oriented capital sources. ment this year. For the 400 station operators in- However, for those broadcasters involved in acquisition ed in station sales, as well as those engaged in major financing, facilities upgrading, or refinancing of existing ities upgrading or refinancing, traditional capital debt, there may be an alternative to substantial equity es may prove exceptionally limited. dilution. apital formation within the radio industry in recent as s has been a fragmented process, with availability Intermediate term lender emerges specialist -ly dependent upon station size and requisite finan- In response to the widening gap between traditional equirements. The large multi-station operators have debt financing vehicles and equity-oriented sources, a ed access to public markets as well as institutional new concept is emerging for medium-size broadcast bank sources. The combination of strong financial financing. Blending the institutional specialty approach tions, multiple markets, and substantial financing of debt packaging, with the cash flow and market analy- irements has enabled such station groups to interest sis of equity investors, the intermediate term broad- cial institutions that feature broadcast specialties. casting lender is a rapidly developing financing factor. all station operators have generally relied upon As a cash flow lender specialing in broadcast property banks and seller notes as supplements to private valuation, the intermediate term specialist adopts an ty sources for the satisfaction of modest capital ownership view of property value by employing stated ls. multiples of anticipated net cash flow. Therefore, ac- ifhile stations in both size extremes will continue to knowledging the large disparity between "hard asset" acceptance through traditional avenues of finance, value and true station value, the underwriting approach nedium-sized operator serving a single market with a concentrates on market growth, market share, and resul- lg facility, will find the capital formation process tant revenue and cash flow projections to establish loan aging dramatically. collateral values. ation financing within this mid-range category has Based on such "true market" values, the intermediate :rally involved medium 6 to low 7 figure amounts term specialist can structure a flexible debt package that arily financed through seller notes supplemented will satisfy total financing requirements with adequate regional bank debt and private equity. However, debt service flexibility. The notable missing ingredient is ting sources for such broadcast financings have the dilutive "equity kicker." 'me increasingly strained as a result of basic The specialty term lending approach is illustrated by gnments with respect to four supply and demand the following example. ,)rs. A multi-station group recently offered a major market sirst A marked increase in the volume of annual sta- AM-FM property to its existing management for a pur- trading has increased competition for available capi- chase price of $3 million. Terms consisted of $2.3 mil- There were 270 station sales in 1971 as compared lion cash and a $700,000 ten-year seller note at 8.5% 363 sales in 1975. amortizing evenly in years 6 through 10. Moreover, and Although the average station sales price de- $600,000 of the. purchase price represented a five-year sed in 1975 the average selling prices of stations in covenant not to compete which would be amortized over nt years has generally increased. In 1975 the average its term ($120,000 per year). The purchasing group ion selling price was $361,063. would provide $300,000, or 10% of the purchase price, hird Accelerating inflationary factors coupled with as its equity contribution. Therefore, a term loan was ,htened uncertainty with respect to long-term funds requested for $2 million, or 67% of purchase price. kets have reduced availability of fixed rate seller- A financial review revealed the following balance s financing. sheet summary: lourth Accelerating cost of funds coupled with (000's Omitted) $ 80 Accts. Payable $100 ird regional Cash loan losses have substantially reduced Receivables 250 Accruals 60 tk availability of fixed rate term loan packages. Other 70 berefore, the continuing combination of an in- Ilksing demand for medium-sized broadcast packages Current Assets $400 Current Liabilities $160 Equipment (Net Shareholders Equity 590 13i t' capital an erosion of seller note and regional bank of $500,000 of Depreciation) 250 Trans. Property 100 13041. Dickstein is Assistant Vice President, Aetna Busi- Total Liabilities & s Credit, Inc., East Hartford, Connecticut 06108. Total Assets $750 Stockholders Equity $750

MBER, 1976-BM/E 41 www.americanradiohistory.com A five-year historical analysis indicated the follow market and station statistics: 10011... (000's Omitted) 1971 1972 1973 1974 SMSA Market Revenue $17,000 $17,800 $18,400 $19,100 $20 Station Share of Market Revenue 7.35% 7.58% 7.80% 7.91% What) Station Revenue 1,250 1,350 1,435 1,510 Operating Profit 310 330 385 410 Depreciation 60 60 55 55 Taxes 100 110 150 165 Net Profit 150 160 180 190 flew! Given his cash flow and market orientation, the int Now convert any monitor to a cross pulse monitor mediate term lender had little concern as to low value with VACC's new $345 CPG-1 Cross Pulse Genera- book assets. His analysis commenced with projections tor. Your monitor needs no modification. For the total market revenues based upon regression analy first time, adjust your cross pulse where you want employing historical demographic and sales data. Ne it - both horizontally and vertically. studies of the station's share of market revenues audience ratings were related, resulting in a revenue p Write more a for information and ask for free copy jection. Historical expense levels were reviewed a; of VACC's Troubleshooting Chart. Photographs basis for operating leverage and operating profit fo show typical video conditions - normal sync with casts. With the addition of interest and debt sery and without time base errors, overshoot, clipped projects, the following forecast was completed: sync, and more. VACC's wall chart - a valuable aid when adjusting and troubleshooting video prob- 1976 1977 1978 1979 lems using a cross pulse monitor. SMSA Market Revenue $21,315 $22,381 $23,500 $24,675 $25 Station's Share of If you need a video monitor, install VACC's Elec- Market Revenue 7.8% 7.8% 7.8% 7.8% tro-optical Isolator in a Sony receiver. In less than Station Revenues 1,663 1,746 1,883 1,925 2 an hour, an engineer or electronic technician can Operating Profit 500 540 585 630 install VACC's A-1 Electro-optical Isolator in a Depreciation & 12", 15", or 17" Sony receiver. Use VACC's Al-A Amortization 195 195 195 195 Interest 313 297 275 245 in KV 1711, KV 1712D, KV 1722, KV 1723D, Taxes - 13 40 85 KV 1910D, KV 1920D and KV 2101 Sony re- Net Profit $ (8) $ 35 $ 75 $ 105 ceivers. Add: Non-Cash Items Get both a high quality monitor and a receiver by $ 195 $ 195 $ 195 $ 195 S

the flip of a' switch. With VACC's superior isola- Net Cash Flow $ 187 $ 230 $ 270 $ 300 S tion, connect up to 20 monitors with no worry of Loan Repayment 100 150 200 250 Ending Loan group loops. Yours - in a, half pound package - Balance $ 1,900 $ Si. from Video Aids. 1,750 $ 1,550 $ 1,300 As indicated above, a selective skewing of the lc Get VACC's new model D-1 or Dl-A Optical De- amortization enabled comfortable amortization of half modulator to record off the air with audio-video- the term loan within the first five years. Moreover out. Smaller than VACC's A-1 or Al-A Optical further tailoring of amortization permitted an equa Isolator, you get the same isolation and weight ad- suitable repayment of the remaining balance as well vantages. providing for debt service of the seller note, within I And, put the A-1 and D-1 or Al-A or Dl-A in the ten-year loan term. to same Sony receiver - get a receiver monitor de- As the example illustrates, the intermediate modulator. Add VACC's Cross Pulse Generator broadcast lender can blend a market approach to stati and you have all four functions with one CRT. value with broad, structuring flexibility. The result c be a financial package ranging from complete sing Also new is VACC's Burst and H-Phase Meter...A source financing, to a sophisticated incorporation t low cost-cost substitute for most vectorscope ap- various classes of senior and junior debt as well as avi plications where you need to keep those flesh- able equity. Further, custom-designing of permissr tones. Likewise, the unit is a low-cost substitute prepayments, and suitable commitment and loan t for an oscilloscope where H-Phase errors need to vance schedules, can serve to provide a timely asq be monitored. Get twice the accuracy on H-Phase or co and about five times the accuracy on burst-phase ability of funds, while accommodating partial when using VACC's Model BPM-1-02. It costs only plete refinancing. $638.00. Circle the bingo card and mail today. The creation of a specialty approach to debt placeo may prove a meaningful step toward reversing I VIDEO AIDS corporation supply/demand imbalance in medium-size broadc of colorado financing. For leveraged acquisitions, facilities upgn l(1 4,, ing, or refinancing, the intermediate term broado phone (303) 667-3301 lender should be considered as a viable approach tot P 112 West 4th Street, Loveland, Colorado 80537 proved financial leverage and reduced equ dilution. BM Circle 154 on Reader Service Card

42 SEPTEMBER, 1976- www.americanradiohistory.com IANON'S NEW P18X16B2* 'INSTANT CLOSEUP' LENSES HAVE TURNED WPIX'S YANKEE BROADCASTS INTO A WHOLE NEW BALLGAME". Otis Freeman Vice President/Engineer. WPIX-TV

When WPIX, in New York The fact that they've got the ught 5 of our new lenses best relative aperture in the busi- it Yankee Stadium installa- ness is frosting on the cake. was the biggest news for P18x16B2 lenses can go from 16 since instant replay. to 216 millimeters without losing

For a lot of reasons: aperture . . where other lenses

P1 8x 1 6B2* lenses have are already falling off at 160 T1 access to all range ex- millimeters. s. Because they don't have And to top if all off the ex- a through. the director isn't treme wide angle of our new lens to cut away to another camera when he's already gives WPIX the best panoramic shots they've ever best angle...and he needs to move in for a tight sent down the pipe. ;p. If all this sounds good to you. seeing what our new The lenses also have automatic compensation lens can do is even better. No matter what kind of camera 'erent light levels, which means there's less to you're using -or contemplating -call us to arrange a tbout when the action down on the field is fast demonstration. .nous. for 1%"/30mm Plumbicont. Also available: PV18x12B2 for 1"/25mm Plumbicon. V Philips Canon® 1-IM N Union U.S.A. Inc. Head Office. 10 Nevada Drive. Lake Success. N.Y 11040 (516) 488-6700 140 Industrial Drive. Elmhurst. III. 601261312) 833-3070 123 Paularino Avenue East. Costa Mesa. Ca 92626 (714) 979-6000 Canon Optics & Business Machines, Canada, Ltd., 3245 American Drive. Mississauga. Ontario L4V 1 B8. Can Canon Amsterdam N.V., Industrial Products Division De Boelelaan 8. Amsterdam. Netherlands

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Circle 155 on Reader Service Card 13 .1- FEMBER, 1976-BM/ E MM. www.americanradiohistory.com Any way you look at it RAMKO audio products offer more for your dollar than anything else on the market.

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Circle 156 on Reader Service Card www.americanradiohistory.com How Similar Strategy Helps Thre Different Stations Maintain Popularity In the Same Market By Theartris Ervin

Three successful radio stations in metropolitan San Jose, ing of current album cuts along with old hit singles California, are using essentially the same sophisticated old hit albums," said Rosetta. "It includes some strattegies in presenting very different formats to very familiar new material which hasn't been picked ui different listeners. top 40 stations." San Jose's KSJO-FM programs a "progressive rock" This strategy assumes the chosen disc jockeys t format designed primarily for men between 18 and 34. "good musical taste" or special talent for figuring The city's KBAY-FM programs an "adult con- what their audience likes. Within these boundaries d temporary" musical format designed primarily for the 35 is room to manipulate the tempo of "earth ro to 64 age group. And KLIV runs down a "contemporary throughout the day while remaining consistent. top 40" format for the teens. Yet the managers of each "We believe in the hills and valleys approach to of the stations agree that the key to getting a large chunk signing the format," Rosetta explains. "In the mon of the 1.3 million potential listeners in the metropolitan people want to hear mellowing music," he says, area is consistency and shrewd variations of the formats. in the afternoon they might want to hear harder rock, In doing so, KSJO, KBAY, and KLIV aren't forgetting you have to change your music according to the tins the other six stations that sit inside the county and the the day, but be consistent. Consistency is part of sharp "big city slicks" just fifty miles north in San Fran- game," according to Rosetta. cisco. For example, KSJO' s General Manager Steve The general manager at KBAY-FM-which prods, Rosetta believes his station must compete with San Fran- a totally different brand of music agrees. General h cisco's KSAN-FM for the 18 to 34 age group. ager Ray Hollingsworth describes his station as The managers agree each of the three stations has "adult contemporary" music station. largely maintained its popularity through consistency "We choose music that is going to be standard to and tempo variations of their musical format throughout row," Hollingsworth explains. "Some songs that I the broadcast day. In fact, Rosetta at KSJO-FM distin- considered rock during the hippie movement in guishes his "progressive rock" format from those of his Francisco in the 60's are now being done by orchet. competitors by the way he puts his music together rather and being appreciated by older people through KBA1, than according to the musical selection. While Hollingsworth says proudly his station does, Rosetta says the disc jockey has the primary role in use a play list, he admits to a strict format. "We lx putting the format together with the emphasis on the requests," he explains, "but only those which fit wi music rather than on the disc jockey's personality. "The our format." He argues his disc jockeys are free tt jock is like the conductor who has all the musicians there creative. "If you are so tightly controlled by a prog doing the work. He kind of directs them in what they are director," he says, "then you wonder why you I doing and puts it all together so that it sounds nice. The men on the board." jock's personality comes through in the music that he KBAY's audience is different too. Hollingsworth plays; in the way that he puts it together." scribes it as "mostly upper income people who drive Rosetta believes the audience can identify and ap- Cadillacs and Continentals." While most of them re preciate a disc jockey by the kind of sound he develops in the Santa Clara-San Jose market area, they are all through his musical arrangement. "The jock who says exclusively between the ages 35 and 64. The 35-49, his name only once or twice in a three-hour shift could be group is the target audience. The 50 to 64 age grot the most recognizable and the most successful with the the secondary target audience.

audience . . . if he's turning them on musically." His audience, however, is still easily manipul Rosetta steers away from what he considers extremes through the way he presents "adult" music. "We Id in vocal presentations between records. "We try to change the tempo throughout the broadcast day to fi bridge in between the very hip, laid back cool disc mood of the listeners," explains Hollingsworth. jockey and the very hype, screaming top 40 jock," "For example, in the morning from 6 a.m. to Rosetta said. people are getting up," he explains. "Soft music w Somehow this strategy manifests itself in what the lull them back to sleep, so we, instead, do lively IT station calls its "earth rock" progressive rock format. or comedy." Hollingsworth believes people should I "Earth rock" incorporates the emphasis on music and and take their time when they eat. So at 8:30, brea the down-to-earth jock with a careful blending of rock time, KBAY begins a soft music tempo. "Ga n music the audience seems to like. "Earth rock is a blend- would encourage them to gulp their food down.- lingsworth explains. Then from 9:30 a.m. until I I Miss Ervin is with the Department of Communication, the tempo picks up "to make the housewife hail Stanford University, Stanford, California. continued on pat

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Circle 157 on Reader Service Card www.americanradiohistory.com SIMILAR STRATEGY Rust believes women are more nostalgic than nu KLIV plays nostalgia music during the times of th at which the housewives are listening. The sta she does her work." "nostalgia hours" are between 10 a.m. and 3 p.n This is followed by "subdued" music for lunch KLIV's target audience, however, is the fickle (around noon). Then back to happy music. And finally, 24 age group. "They are button pushers," Rug calm peaceful music around 5 p.m. at about the time the plains. "They do a lot of tuning out. They tun husband has come home from work and wishes to relax news, free speech messages, and commercials." as he reads the paper. plains. Hollingsworth said he too maintains his tempo vari- How does he cope with that? "We try to run co ations with consistency and predictability. "The list- that lock people in," he says. "We will announce tl eners know that any time during the broadcast day they you are the tenth caller you win a record album' to can tune in and find what they want to hear." He be- them listening." Rust indicates the station has lieves that the station's consistency is one of the more away cars and motor cycles in previous years. important things which contributes most to its success. Community involvement also contributes to th, Hollingsworth, who has been with KBAY since it was tion's success. "We cover the 'Earth Quakes' gan licensed in March 1963, adds, "You can't build a loyal professional soccer team, based in San Jose) an t

audience if you are not consistent." report the scores from various high school teams, e The management at "Top 40" rocker, KLIV concurs. says. "We play essentially 30 different songs a week de- Clearly, Rust looks beyond that to agree wit

pending on day parts," according to Account Executive management at KSJO-FM and KBAY-FM that .

Terry Rust. KLIV' s format is more structured. "We add sistency along with tempo variations is the key to I - three new records each week. Twenty of the songs will taining a loyal and a steady listenership. All be hits," he explains, and "six songs will be on con- assume that their audience's mood is predictable any tinued air play. That is, six songs will be specifically the audience, without regard for age and social s selected to be played more times during the day than generally prefers one kind of format. other hits." "If people want to hear news they tune into a The tempo is consistent as well. "We stay with cur- station," Rosetta says, "if they want to hear jazz rent songs during our morning and afternoon drive," tune into a jazz station. If they want soul, they tune Rust explains. "Morning drive" is between 6 a.m. and soul station. We don't attempt to reach everybody. 10 a.m. "Afternoon drive" is between 3 p.m. and 7 Hollingsworth sums up, "It would be a disaster too p.m. try to be all things to all people." E

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Circle 159 on Reader Service Card 11113ER, 1976-BM/E 49 www.americanradiohistory.com Understanding Antenna Tuning Un by Philip Sonksen Antenna tuning units behave like quarter-wave transmission-line transformers. Once you grasp that concept, the mystique of those coils and capacitors clears up.

If you are one of the many engineers who doesn't really understand the theory behind the hows and whys of the antenna tuning units of series-fed non-directional AM stations, this article should remedy the situation. I am going to try to explain in simplest theory the set-up of this mysterious maze of coils and capacitors. This should lead to understanding why you get the readings you do as a result of changing the coil tap. First, think of the tuning unit as an artificial quarter wave length of transmission line. A quarter wave length of transmission line relative to a certain frequency can be Fig. 3. Some typical T-configurations. used as an impedance transformer. For instance, if you take a quarter wave length transmission line with a characteristic impedance equal to that of the generator output, and connect one end to the generator and leave the other end open, an impedance transformation will take place due to standing waves in the line, Fig. I. At 7 the unterminated end, the impedance is highest because r-. the voltage potential is highest and there is no current Fig. 4. Note that a transmission line is made up of smal the generator end, there is high current and a flow. At inductances and capacitances just as in a T-network low voltage potential which constitutes a short, or low

Mr. Sonksen is an engineer at WOW Radio, Omaha, impedance. If you take the same set-up and short the Nebraska. opposite the generator, the reverse of the open line take place, Fig. 2. At the shorted end, the voltage Ail VOL7796E minimum and current will be maximum; at the genet CURRENT _ end the voltage will be maximum and the current rn

--.. mum. .7 ...., WON 2 LO 2 P- This is basically how an impedance is imertee Ni7 5f. transformed in a quarter wave length of transmis' NERgTOR )=1 line, which is commonly referred to as a quarter v, transformer. And this is exactly what is done in ante tuning units, but by the use of coils and capacitors stead of an actual transmission line, which would bulky to say the least. Most tuning units in r directional AM stations use a Tee configuration for pedance transformation, although a Pi configuration Fig. 1. Quarter wave length transmission line with an open end. R. F. Generator output of 50 ohms impedance is the same characteristics. Some Tee configurations matched to transmission line characteristic impedance of 50 shown in Fig. 3. ohms. Now let's take a look at the composition of a fr mission line, Fig. 4. As you can see, the transmis line is made up of little inductances and capacitances that r.96E. CURRENT like the Tee network in the tuning unit, except -- '- tuning network uses real capacitors and inductors th -- --, -- ---.. coils. With the proper mathematics, the till 1116H Z -. LOW2 form of 7 --.. LR.E j7 A unit can be set up to act just like a quarter wave sec of transmission line. By changing the characteristic GENERATOR - SWAT pedance of a quarter wave transmission line, the pedance transformation can be set to the value des between the generator (transmitter) and the load tenna). As you can see in Fig. 5, there is an impel transformation between the generator and the load the load end the voltage is higher and the current is k Fig. 2. Quarter wave length transmission line with a shorted than at the generator, and this constitutes a higher end. Note this is the reverse of Fig. 1 with current a maximum and voltage a minimum. continued on par

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Circle 160 on Reader Service Card www.americanradiohistory.com ANTENNA TUNING X1

Zo= Sosz pedance. At the generator end the voltage is lower and the current higher than at the load end, and this constitutes a lower impedance. The generator and load im- pedances are matched by a quarter wave section of 64.42 +.164.41 A [REACT/74CE 6942S2 IRE& ohm line. To obtain the figure of 64.42 ohms for a quar- X3 ter wave section of line, use the following formula: 42 Q ielAcrit Characteristic impedance of line =

impedance out , resistance Fig. 6. The calculations of Fig. 5 transferred to a T-rle of generator ^ of load

Or, Zo = N/50 x 83 = 64.42 ohms Now let's apply the theory to the antenna tuning unit. First, determine the characteristic impedance of the transmission line which is to be matched to the antenna,

assuming that the transmitter is already matched to the ANIbNNA 33 RES/57A transmission line. By using an RF impedance bridge, +2532 determine the resistance and the reactance of the anten- (A, na. For example, let's pick an antenna with 83 ohms resistance and no reactance (JO), and a transmission line whose characteristic impedance is 50 ohms. With these jo---v------4si [REA figures known, we can design and set up the antenna tuning unit using the formula: -ai 42 S2 ntacm

x = Zo X R antenna in which X = reactance of the arms Fig. 7. The tuning situation with an antenna having an Zo = characteristic line impedance inductive reactance. R ant = resistance of the antenna

Then, X = 50 x 83, X = 64.42 ohms Now let's transpose the figures to the Tee network, reactance of +J 25 ohms (inductance reactance). Fig. 6. To make the Tee network act like a 64.42 ohm now that Arm X2 is +J 39.42 ohms. The reasonin transmission line, we must bridge each individual arm behind this is that the rest of the reactance of Arm X2 separately and set each one to a reactance of 64.42 ohms being provided by the antenna, which has a +J 25 olu as read on the impedance bridge. reactance. So the addition of +J 39.42 (Arm X2) and 4 Ann Xi = 64.42 ohms +J (inductive reactance) 25 (antenna) equals +J 64.42, which makes all of d Arm X2 = 64.42 ohms +J arms of the network symmetrical with a -90° pha1 Arm X3 = 64.42 phms -J (capacitive reactance) shift. A 90° phase shift is the same as a quarter wa% The inductance in series with the capacitor in Arm X3 is length of transmission line. If the reactance of the ai used to trim the capacitive reactance. Some tuning units tenna were capacitive, such as a -J 25 ohms, you wool do not use a coil in series with the capacitor, so the need, in addition to the reactance in Arm X2 (normal] the - capacitor in Arm X3 must be carefully selected. It should 64.42 ohms), an additional +J 25 ohms to cancel be noted that almost all antennas have either A +J (in- 25 ohms in the antenna. So Arm X2 should now be sets ductive reactance) or A -J (capacitive reactance), and we +J 89.42 ohms. All of it have to get rid of this J, or reactance, before the tuning Now for the final check of the tuning unit. the a unit will function properly, Fig. 7. arms of the network should be connected, and Let's take another example with the transmission line tenna should be connected to the output Arm X2. Cc" having an impedance of 50 ohms, and the antenna nect an impedance bridge to the input of the tuning I having a resistance of 83 ohms but this time having a with the transmission line removed from the tuning La4 You should see a resistance of 50 ohms on the bride CURRENT VOLT/3SE which is the characteristic impedance of this parncui transmission line. The reactance should always be zd LOWZ 1//6// Z (J0). If the resistance of the network as read on tl bridge does not read the same as the characteristic in IhE pedance of the transmission line (in this case 50 ohms ti move the coil tap on Arm X2. If the reactance is not ze on the bridge, move the coil tap on Arm XI. You iTh notice as you move a tap on one coil, that you will ha' to re-adjust the other coil tap until you obtain the corm readings. That is really all there is to understanding the theory sot Fig. 5. With 83 ohms termination at the end of a quarter wave tun length transmission line there is an impedance operation and function of simple antenna transformation equaling 64.42 ohms. units.

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Two editing firsts. AE-600 is the first Time Code Editing system built into a vid recorder. Or available for later drop-in. It's the first built-in Editor wi microprocessor control. The s can include one record and up 8 playback TR 600A VTR's, pl three more external devices.

Remote control facility

197 54 SEPTEMBER, www.americanradiohistory.com -it lockup, Super Highband /Pilot Tone. These include Chrominance dble editing. Superior picture quality can be Amplitude Corrector, Velocity :kup, color framing and sync achieved with this TR-600 option. Error Corrector, Color Dropout e just 2 seconds (NTSC) or It automatically corrects banding Compensator, Automatic Color !conds (PAL /SECAM). Speed and other errors at an exceptionally Framing (NTSC), Track Phasing, reduces editing time and cost. high level of accuracy. This means LED diagnostic system, guide and .E -600 gives your tape editor that consistently high quality reel servos, a preloadable tape flexibility of combination or pictures can be maintained by less timer with LED timer display. lc audio and video edits. He can skilled operators. And more. impendently edit two audio hitnnels. And he can make three Efficient manual editing. Now, let's review. htependent edits-Audio A, Audio Here's reassurance if you wish to The VTR state of art is N nd Video-in the same tape add AE-600 Editing later. Every unquestionably exciting. But will 61;. The ability to select from TR-600A lets you perform quick the VTR and the time code editing the editing modes is another way and easy manual tape editing. Users system you buy today fulfill your oi3ving time and money. tell us that the reel motor servo future needs? It can, if it's RCA. Consider. Only RCA delivers: A VTR with $20,000 worth of accessories in a standard model A VTR with integral time code editing that you can add now or later A VTR that equals or surpasses others in specs, features and versatility, yet costs less. Ask your RCA Representative for all the details about the VTR with the heart of an editor: TR-600A with integral AE-600 on-line editing.

djustment of tone wheel phase system is so stable that edit points itomatic, a "first" from RCA. can be manually located very close hine lockup to permit precise to any desired frame. A single r framing before each edit is also frame electronic splicer and variable ,matic. And a Variable Capstan capstan speed control, both trol aids in lip sync. standard, enhance the TR-600A manual editing capability. .1300A: the complete f d VTR. $20,000 hi accessories Inr pent back to quad VTR basics. included. 4)A gned all-modular electronics. Most desired features that could 1 in that add RCA many standard features cost as much as $20,000 to to !!!.:ostly extras on other quad other VTR's are an integrated part ;'s. Incorporated AE-600 of the machine. face. And created the 500A. The complete quad. With rising features for the money.

55 Al-EMBER, 1976 -BMIE www.americanradiohistory.com phabetical listing of Manufacturers (p. 73). 3.11 dependent Reps/Distributors organized by star (p. 118). Here's how to use your Source: First, identify tt general category under which you would expect

find the item listed. For example, you are looking t, a wireless microphone. The general category wou

be Audio. Using the Instant Source Locator, you w find that each major category is numbered. Audio category 1. Go to this category and look down tf column until you find the subheading, microphone Then, read the subcategories and you will find th "wireless" is number 5. Scan the company names the right and note the companies that are accor panied by the nubmer 5. There may be more the one; moreover, if the name is also given an aster's this indicates that the company named is a VerifiE Source for the items noted. Then, turn to the alphabetical listing and find If THE specific firm. There you will find the name of the fin address, telephone number and a list not only of tl product that you are seeking, but also other pro ucts manufactured by that firm. In addition, the firm may have the notation VS indicate that it is verified and a notation refering

to the page on which its advertisement appears ( SOURCE that you may get additional information on the fir and its products) and a reference to the distribut section. If the listing has a reference to the distri utor section, you may then turn to that section, fir the state in which you do business and then ident the nearest distributor handling the product yr want by looking for the manufacturer's ad refereR 1916 noted in boldface type under the distributors listir If no distributor in your state is listed for that produ then look in the neighboring state's listings for d tributors there. In some cases, you will find that the compa listed in the manufacturer's section has listed field offices. In this instance, it is best to contact t nearest field office direct. Welcome to the Source: 1976. This year's guide to In the case of some generally available produal broadcast industry manufacturers, and independent you may assume that they are normally availab reps/distributors is the most extensive listing ever from any distributor handling that particular line complied by BM/E. From the outset, we have products. To locate such distributors in your ar strived to present the reader with a useful everyday simply scan the listings for your state and note t reference to the most important sources of products "line" which the distributor handles. Most distr and services to help keep him on the air and im- utors handle a number of manufacturers so their lir prove his everyday operations. description is necessarily general and you may ha You will find that we have categorized products to inquire with them for the specific brand y under 10 major headings. Every attempt has been desire. made to breakout these major categories into useful Many companies have placed advertisements and convenient subcategories so that you may find this issue to present more information to you alp( manufacturers of a specific item more quickly. their products and services. As you use The Soul Whenever possible, BM/E has verified the listing in the coming months, you may find that the / and product lines supplied by the manufacturer. The vertisers Index, on page 176, may serve as a go purpose behind the Verified Source (VS) notation is device for quickly locating these more complete I to assure you, the broadcaster, that the products planations of the various products and servic noted in the company description are in production available. and regularly available to you. (BM/E has, on file, BM /E has made every effort to make this din information supplied by each VS manufacturer to tory as easy to use and as complete as possible authenticate the availability of the product or prod- you note any oversights, or know of any mar ucts mentioned.) facturer or distributor that you feel ought to be list' The Source is divided into three sections: 1. please write to us so that The Source: 1977, can The Instant Source Locator (p. 57). 2. An al- made even better.

SEPTEMBER, 1976, -B www.americanradiohistory.com ;stant Source Locator

udio Equipment 4. Lighting/Studio Equipment/ 7. Measuring/Monitoring ideo Equipment Set Design 8. Service ilm Equipment 5. RF/Transmitting/Receiving Equipment 9. Cable TV Equipment 6. Antennas/Towers/Transmission Lines 10. Components/Hardware/Systems

Automation Aitken 1; Amilon 3,4,6,8,9"; Audio Services Equipment 1,12; Audio/Video Products 3,12; Autogram AUDIO EQUIPMENT 1. sequencers, 1,2,4-6,9,10,12"; Automated Processes 4'; relay BE 2*; Channelmatic 10'; Control Design kire, Amplifiers Altec 6,7*; Am. Data 1-3,5,6'; Ampro 3; 2. sequencers, time 3-7; Datametrics 1,2'; ESE 7*; Harris 1-12"; :ihr:ribution Audio Designs 1-3"; Audionics 6; Audio- insertion IGM/NTI 1-3,6,9-12'; Ionic 4; ITC 5,6*; MCI techniques (H&H Electronics) 6*; Autogram 3. controllers, 5*; Microprobe 1,12"; Microtime 3*; NEC 3; 7( -amps 1-6'; Automated Processes 1-8*; Beier 5'; computer/ Nationwide 2-4,7-9'; Otari 5*; RCA 3-6,12"; t amp modules Bell 1-3,6,7'; Bethany Int1.1"; BE 1-3,5"; microprocessor Revox 5"; Rivers 10,13'; Schafer 3-12*; nitor Boston Sound 3,8'; Caringella 3'; 4. memory units Scully 5"; L.J. Scully 5'; Spectra Sonics ver Channelmatic 1*; Collins 3'; Cooke 1,3,5*; 5. reel decks 10*; SMC 2-12'; Tape-Athon 5, 11, 12'; )lic address Crown 3,5,6'; Datatek 1'; Di-tech 5; 6. multi-cart Tektronix 7,8*; Telex 5'; UMC 6*; VIF plifier power Dunlap-Clarke 6; Dyma 1-3,5,6,8"; Dynair machines 5,6,9,12* _:plies 1'; Elcom 3*; Electro & Optical 1,5,6; 7. read out/display Fisher-Burke 1'; Gotham (Neumann) 4'; 8. data input Harris 1,3,5,8"; Heath 3,6,9'; ISI 1,5; Intl. devices Nuclear 1"; ITI Electronics 2,3,5,6,8"; John- 9. auto loggers son 1,3,7'; LPB 1,3*; Marti 2,5*; McCurdy 10. tone generators 1-3, 5,6,8'; McKay 5'; McMartin 5-7"; 11. auto Micro-Trak 3'; Modular Audio 1-6,8"; time/weather Nakamichi 3,6 *; National 5; NEC 1*; Neve announcers 1'; Opamp Labs 1-3,4,6,8'; Orange 1-8"; 12. complete Panasonic 1,3,6'; Pacific Recorders 1-3'; systems Pulse Dynamic 6,7*; Quad Eight 2,3,5; 13. tone Ramko 1-3, 5,6'; RCA 1-3, 5-8*; Revox detection/control 3,6*; Richmond Sound 1-4, 7*; Robins 1-6,8'; ROH 1-3,6,8; RTS Systems 3"; Consoles Altec 1,6*; Ampro 1-5'; Arp 1,2,6'; Ashley Russco 3,5,6'; Sennheiser 5'; Sescom 1. mixers 1-3,6'; Audio Design 1-6'; Audio Interface 2,3,5; Shintron 1,5*; Shure 3,5,7'; Sontec 2. mono 1'; Audiotechniques (Allen & Heath) 1,3,6"; 2-4; Spectra Sonics 1-3, 5-8"; Sparta 3. stereo Auditronics 3-5*; Autogram 2,3,5*; Auto- 2,3,5"; System Engr. 1,2,4-6,8"; SMC 2,5'; 4. quad mated Processes 1-5,7*; BE 1-3,5"; Boston TEAC 2,3,5,6'; Tektronix 4,5*; TeleMation 5. audio for TV Sound 1'; Central Dynamics 1,5,6'; Cetec 1-5"; Telex 3,6,8"; Thomson-CSF 1'; TM 6. portable Audio 3-6"; Collins 1-3'; Crossroads 1*; Systems 1,8*; UREI 1-4*; U.S. Pioneer 7. automated Dyma 1-6"; Harris 1-3,5,6'; ISI 5'; KMS 1; 3,5,6'; United Res. Labs 1,3,4"; VIF 2,3*; LPB 1-3,5'; McCurdy 1-5'; McMartin VAC 1'; Vamco 1; Vital 1*; Ward-Beck 1-3,5,6'; MCI 1-5'; Micro-Trak 1-3,5,6"; 1-3,6,8"; Wilkinson 1-3* Modular Audio 1-3; NEC 5'; Neve 1-7*; Opamp Labs 5,6'; Pacific Recorders 1,5*; Controls Alco 3*; Am. Data 3'; Ampro 1,2*; Audio Philips Audio Video 1-5'; Pulse Dynamic 1*; try attenuators Designs 2'; Automated Processes 2,3'; BE Quantum Audio 1,3,4'; Quad Eight 1-4; le attenuators 2,3"; Central Dynamics 3'; Channelmatic Ramko 1-3,5*; RCA 1-6'; Revox 1'; Rich- tchers 3*; Comtec 3"; Crown 2'; Dyma 1-3*; mond Sound 1,3,5,6'; Robins 1-6"; RTS Dynair 3'; Gotham (Danner) 1,2*; Kay Ele- Systems 6'; Russco 2,3'; Sennheiser 6*; metrics 1,2*; McCurdy 3'; MCI 2'; Modular Shintron 5*; Shure 1,2'; Spectra Sonics Audio 2*; Neve 3"; Orange 3'; Quad Eight 1-4"; Sparta 1-6'; Sphere 1,3'; Switchcraft 1-3; Richmond Sound 3'; Robins 1,2'; ROH 1*; Studer 3; Systems Engr. 2,3; 2005 AD 1,3; Spectra Sonics 2,4'; Switchcraft 3"; 1,3,5,6'; TEAC 1,3,4"; TeleMation 5*; Tech Labs 1,2*; Texscan 1'; UREI 2; VIF Transist-O-Sound 1*; UAP 1,5,6"; VIF 1'; 3'; Vital 3*; Waters 1,2* Ward-Beck 1-6"; Westlake Audio (Harrison) 1-4"; Wilkinson 2,3,5* lu-. Processing Allison 2; Altec 2,4,5'; Ashley 5"; Audio :a..ment Designs 2,4*; Audio Interface 2'; Audio- Disc Cutting Gotham (Neumann)'; Neve"; L.J. Scully* LC and AGC techniques (Audio & Design Record; Tri- Equipment nplifiers dent) 2,4,5 *; Auditronics 5"; Automated )mpressor/ Processes 1,5*; B&W 2,10 *; Caringella 1'; Disc Playing AKG 3"; Astatic 3; Ampro 1-6"; Aristocart niters, AM Dyma 1-3, 5-7"; Elcom 1-3'; ESC 4,5,8'; Equipment (WBC) 2*; Audionics 1; Automated Proc- smpressor/ ESE 8*; Eventide 1-3,5-8'; Gotham (EMT) 1. turntables esses 5*; BE 1-3,5.6"; Broadcast Sound niters/filter, FM 1-3,5"; Harris 1-3"; Heath 5*; Inovonics 2. pickup arms 1-4'; CBS Technology 7*; Dyma 1-3,5,6; aualizers and 1-3'; Ionic 12*; ITI Electronics 2,4`; Kahn 3. pickups, stereo Elcom 5'; Elpa 1*; Gotham (EMT) 1-3'; ters - passive 4*; Lexicon 7,8,12'; LPB 2,3'; Marti 1-3'; 4. pickups, quad Harris 1-5'; LPB 1,2,5,6'; McCurdy 1-3,5'; aualizers and McCurdy 1,2,4,5'; Micmix 6-8'; Modular 5. turntable McMartin 5; Micro-Trak 1 -6'; Modular Audio ters - active Audio 1,5"; Moseley 1,3'; Multronics 4-6; 6. complete disc 5"; Nakamichi 3`; Orange 5'; Panasonic/ lasers Neve 1-5,9'; Opamp Labs 1,5'; Orban/ consoles Technics 1*; QRK 1-3,5"; Ramko 5"; angers Parasound 3,5'; Orange 1,5*; Panasonic 7. test record RCA 1-5'; Russco 1*; Sansui 1; Shure 2-5*; slay lines 5"; Pacific Recorders 2,3*; Quad Eight 2,4; Sparta 1-6'; Stanton 1,3-5'; TEAC 1,2*; r- ereo phase Ramko 1-3,7,8'; Rapid Q 9*; RCA 1-3'; U.S. Pioneer 1'; Ward-Beck 5"; Wilkinson ihancer Richmond Sound 5*; Robins 1-3'; ROH 2; 5* ipper Shure 2-4"; Sescom 3; Sontec 2,3; Spectra I iodulator Sonics 2-4'; Sphere 4,5'; System Engr. Headphones AKG*; Audiotronics*; Beyer*; Broadcast seech time 1-3,5,6'; SMC 1*; Thomson CSF 1-3,5*; Sound"; ClearCom"; Koss; Nakamichi'; smpressor Transist-O-Sound 1'; UREI 2,3'; U.S. Panasonic"; Pulse Dynamic'; RCA*; Senn - Pioneer 5"; Ward-Beck 2,3,5*; Wilkinson heiser'; Stanton"; Superscope; TEA (Am- 2.3*, Dorrough plivox)'; Telephonics; Telex'; U.S. Pioneer*

asterisk denotes that manufacturers so identified have ver- ; that the products mentioned are in regular production. Cur- , data on these products are on file with BM/E.

:FEMBER, 1976-BM/ E 57 www.americanradiohistory.com SOURCE LOCATOR Tape, Cassette Advent; Amilon*; Audiotronicsi Player/Recorders Audio; Heath; Lexicon*; Nakam Panasonic*; RCA*; Sharp`; Supers Intercom Systems Clear Com*; Comrex *; Fisher-Berkeley*; Tandberg*; TEAC*; Telex*; U.S. Pion.* Heath*; ISI*; McCurdy*; McMartin*; Orange; Philips Audio*; RCA*; Rivers*; RTS Systems*; Systems Engr.; TeleMa- Tape, Open-Reel Ampex 1,2*; BE 3,4; Crown 3; Dyma tion*; TEA*; Telex*; VAC*; Ward-Beck* Recorder/Players Electro Sound 1,3*; Elpa 1,3'; GM/ 1. portable (Telefunken) 2*; Ikegami 5; ITC 2,3, U Microphones Advent 1*; AKG 1,2,4,6-9*; Altec 1,2,4,8*; 2. studio systems 2-4'; 3M 2,3; Nagra 1*; Otani 1-3' Pe 3. tape decks agon 1. dynamic Atlas 8,9*; Audiotechniques (Monks) 8,9*; 2,3; RCA 1,2,5'; Revox 1,3,4 4. time delay 2. condenser Audiotronics 1*; Beyer 1,3,5,7-9*; B&K 2*; Schafer 3*; Scully 2,3,5'; L.J. Scully ; 5. logging recorder SMC 2,3*; Studer 1,2; Superscope 3. ribbon Comrex*; Dyma 1,2*; Edcor 2,4,7 , Electro Athon 1-3,5*; 4. electret Voice 1,4,6,7*; Frezzolini 6; Gotham (Neu- Tandberg 1'; TEAC 2,: Telex 5. wireless mann) 2,7,9*; Group 128 2,8*; Ikegami 5*; 2,3,5*; U.S. Pioneer 3'; United Rr Lab VIF 6. shotgun JVC 1,2,4,6,8,9; KMS 4,7,9; Nagra 7,9*; 2,3*; 2,3,5* 7. lavalier Nakamichi 1,2,4*; Panasonic 1,2,4*; Pulse Tape, 8. booms, dollies, Dynamic 1*; RCA 1-3,8,9*; Redding Radio Duplicators Ampex*; Audio/Tek; Cetec Audio. Elec. stands 10*; Sennheiser 1,2,4-7,9*; Sescom 1,4; Sound*; Garner*; Gotham (Telefunken 9. accessories Shure 1,3,7,9*; Sony 4; Studer 2; Super- Intl. Audio*; Otari *; Pentagon; Telex' 10. nameplats scope 4; TEAC 4*; TEA (Reslo)*; Television Products 8*; Telex 1,4*; Thomson CSF 5*; Tape Editing Automated Processes*; Datatron; EEC( Transound 4; U.S. Pioneer 4*; Vega 5* Equipment Elpa"; Kaitronlcs; Nortronics*

Tape Heads Computer Magnetics 1,2*; Ferra Flux. Mir Music Synthesizers Arp*; lonic*; Electrocomp; Moog 1. new Magnetics; Nortronics 1,2*; Saki; Tat 2. reconditioned 1,2*; UMC*; Vikron* Noise Reduction Audio Designs*; DBX*; Dolby*; Gotham Systems (AEG Telefunken)*; Inovonics*; Orange; Tape and Head Annis 1,2*; Ampro 1,2*; BE 2*; Fidelipac: TEAC; U.S. Pioneer*; Ward-Beck Erasers Garner*; HP 1*; ITC 2*; Microtran 1,2,. 1. tape degaussers Nakamichi 1*; Nortronics*; Optek 2'; Rt Patch Panels Audio Accessories 1-4*; Audio Designs*; 2. bulk erasers 1,2*; Robins 2*; Sparta 2*; Taber 2'; TEE 1. telephone jacks Cooke*; Dyma*; McCurdy*; Potomac*; 3. conveyor erasers 1,2*; UMC 2* 2. telephone plugs RCA *; Switchcraft 1-3*; Trompeter; Ward- 4. spot eraser 3. patch cords Beck* 4. pre-wired panels Tape Storage Aristocart 2*; BE 2*; Capitol Magnetic, 1. open-reel Dyma (Broadcast Record) 1-3*; Fideli Quad Matrix Audionics 1,2; CBS Technology 1*; Heath 2. cartridge 2*; Grinnan 1-3*; Harwood 1*; Micro-Tra Equipment 2*; RCA 1,2* 3. cassette Neumade; Nortronics 3; RCA 2*; Simp, 1. encoder Sparta 2*; Storeel 1-3* 2 decoder Telephone Coupling B&W*; Dyma; McCurdy"; Microtran Reverb Units AKG*; Dyma*; Eventide*; Gotham (EMT)*; Equipment Nationwide*; Pulse Dynamic*; Redd Micmix*; MXR; Orban /Parasound *; Pulse Radio* Dynamic*; Robins*; U.S. Pioneer* VU and Peak Amber 3*; Ampro 3*; Audio Designs*, Dyi Sound Effects Eventide*; lonic*; MXR; Orange Indicators 1; Electro & Optical 1*; Harris 1*; MCI 1. analog McGraw-Edison 1; Micmix*; Modular Au Speakers Advent*; Altec *; Atlas *; Audio Designs*; 2. digital 3*; Nationwide 2,3*; Pulse Dynamic Audionics; Audiotechniques *; Audiotron- 3. LED Quad Eight; Ramko 3*; RCA 1*; Sontec 1 ics*; Broadcast Sound*; Cetec Audio*; TM Systems 1*; Triplett 1*; 2005 AD 2, Crossroads*; Crown; Electro-Voice; Weston 1* Gotham (K&H)*; Heath*; JBL; McCurdy*; Philips Nakamichi*; Orange; Panasonic*; Tape Accessories Agfa-Gavaert 5; Ampro 11; Audico RCA *; Russco*; Audio; Pulse Dynamic*; and Services Audio/Tek 2; BE 1,2,7,8*; Electro Sot Sennheiser*; HH Scott; Shure*; Spectra 1. empty reels, 1,4*; Elpa 3,5*; ESE 7*; Fide li Sonics*; Superscope; Tandberg*; U.S. carts, cassettes 1,3,5,8,11*; Gotham (Lyrec) 7*; Ham/ Pioneer*; Westlake Audio 2. auto loaders 1*; IGM/NTI 1,10,11; I novonics 12'; I 3. splicing blocks Audio 11*; 3M A/V 1,3,5,6,8*; McCurdt - Audiotechniques 5*; BE 1*; Studios Ampro 1,3*; 4. auto splicers Nagra 1,7 *; Nortronics 3,8*; Nova 8, Pa 1. cabinets and Broadcast Sound 4* Dyma 1,3*; Grinnan 5. splicing tape sonic 1*; Plastic Reel 1; Poly line 1; ORK furniture 1,3 *; Harris 1*; LPB' 1,3 *; McMartin *; 6. leader tape Ramko 2 *; RCA 1,2*; Recording Sur 2. acoustic materials McCurdy 1,3*; Micro-Trak 1*; Pacific 7. tape timers 1,6*; Robins 8 *; Senstrol 13; Sparta and treatment Recorders 1,3*; RCA 1*; Sparta 1*: West- 8. tape cleaners Studio Tape Exchange 9; Telex 1*; TDh 3. complete studio Audio 1-3* lake 9. tape cleaning and 10 *; U.S. Pioneer 1*; UMC construction Tentel evaluating Vamco 7; VIF 10*; Westlake Audio 3,8" 4. on-air lights service 5. cue boxes 10. tension gauges 11. alignment Synchronizing Automated Processes 1,2*; CMX 1 ,2* ; gauges 1*; Datatron 1,2*; Datametrics 1*; Equipment Cooke 12. tension servo EECO 1,2*; Electro & Optical 1*; ESE 1*; 13. splice finders MCI 2*; Magnatech 2; Magnasync/Moviola; Scully 1*; Skotel 1* Other Audio Annis 3*; Audio Interface 2; Audiot Tape, Audio Advent 3*; Agfa-Gevaert 1,4*; Ampex 1-4*; Accessories 4; Crossroads 5; Gotham 6; ITT Can Magnetic Aristocart 1,4*; BASF 1-4*; BE 2*; Capitol 1. connectors Kahn 7,8; King; MCI 5; Microtran 9; Magnetics 1-4*; Fidelipac 2,4*; Fuji; Intl 2. on-air light Audio 9,10; Orban/Parasound 11; Audio 2,3*; 3M A/V 1-3*; McCurdy 2*; 3. magnetometers 12; Switchcraft 1,5* Maxell 1-3; Memorex 1-3*; Nakamichi*; 4. disc cleaner Nortronics 4*; Panasonic 2,3*; Pentagon 3; 5. cable tester RCA 4*; Recording Supply 1*; Redding 6. polarity tester Radio 3; Sparta 2*; Standard Tape 4 *; 7. audio squelch Taber 4*; TDK 1-4*; United Res. Lab 1*; VIF 8. voice line 4* improber 9. transformer Tape, Cartridge Amilon 1-4*; Ampro 1,2*; Audi-Cord*; Bell 10. precision Player/Recorders 1; BE 1-4*; Harris 1-3*; IGM/NTI 3*; ITC oscillator 1. single 1-4*; LPB 1*; QRK; Rapid Q 1-4*; RCA 11. stereo 2. dual 1-3*; Sparta 1-4*; SMC 1,2 *; Tapecaster; synthesizer 3. multiple Telex 1,3*; UMC 1-3* 12 silence alarm 4. time delay *The asterisk denotes that manufacturers so identified have ified that the products mentioned are in regular production. rent data on these products are on file with BM/E.

SEPTEMBER, 1976-E 58 www.americanradiohistory.com Goad Reasons to See the Datavision D-3000 Video Character Generator Before

3000 Character Generator produces video-type ellent clarity (1120-element character tn). Each letter is smooth and precise. now you have a greater selection of type fonts Making - uding Upper and Lower Case, selected math a , and accented foreign language characters. used with the optional D-4000 Random Access you can store up to 1,000 pages on each I: diskette. With our new Animation Mode

- 1), you can play out full frames at a rate of 6 or econd from the D-4000 Memory, Purchasing creating notion pictures". 3R FEATURES: 2 INDEPENDENT OUTPUT JELS MULTIPLE VIDEO-TYPE FONTS 1AL 4-PAGE MEMORY CHARACTER Decision. or call: Datavision Video Products, 15932 ;rove Road, Gaithersburg, MD 20760. ne: (301) 948-0460. Smooth,True Climacters. Most Asked For" Features 1,000 Page Random Access Memory. (Optional D-4000 Unit) Costs Less. Last' Fast Operation.

Datavision Video Products 12m MINCOM DIVISION Ma COMPANY

Circle 162 on Reader Service Card 59

www.americanradiohistory.com SOURCE LOCATOR Processing American Data': COL: Elec Amplifiers Fung'; Ind Sciences'; Leitch; L Mincom*; NEC*; TeleMation; CSF'; Versa Count'; Dynosciences 2 VIDEO Valley*; Telemet' EQUIPMENT Pulse & Distribution American Data 1-3'; CDL 1-4'; Coa

Amplifiers Cohu 1-3*; Cooke 1,2'; Datatek 1 Cameras, TV, Color Ampex 1,2*; CEI 1-3*; Cohu 2,3*; Fernseh 1. pulse Tech 1; Dynair 1,2'; Dynascience Studio 1,2*: GBC 1-3*; Harris 1-3*; Hitachi 1-3*; 2. distribution Elec & Opt Sys 1-3*, GBC 1,2'; lk 1. over $50,000 Ikegami 1-3*; IVC 1-3*; Magnavox 3; Mar- 3. subcarrier 1-3'; Ind. Sciences 1-3*; Inter Nuclear 2. $25-50,000 coni 1*; NEC 1,3*; Panasonic 2,3*; Philips 4. DC coupled J&D Inter 1-3: Lenco 1-4'; 3M Mincom 3. below $25,000 AV 1-3*; RCA 1,2*; Sanyo 3; Sharp 3*; 5. equalization NEC 1-3*; Panasonic 1-3*; RCA 1.2', Sony Brdcst 2*; Sony Corp. 3*; Thomson Iron 1,2'; Richmond-Hill 1,2*; Tektronix CSF 1,2* Telemet 1,2'; Thalner 2*; Thomson C 1-3,5*; Vamco 2'; Viscount 2'; Vital 1- Cameras, TV Akai *, Ampex*: Asaca*; CEI*; Concord Grass Valley 1-3* Portable Comm; Fernseh*; GBC*; Harris"; Hitachi"; Color/Portable Ikegami*; JVC*; IVC*; Magnavox; Mar- Automated CDL'; Grass Valley'; Vital' Battery Operated coni*; NEC*; Panasonic*; Philips AV'; Technical Operation RCA*; Sony Brdcst*; Sony Corp*; Thomson Systems CSF* Cameras, TV Mono Akai*; Asaca*; Belden Comm*; Cohu*; Co- Production Switcher American Date; CDL 1,2*; Conte lorado Video*; Elec & Opt Sys*; GBC*; Gen 1. large Image 1,2*; Comtec 2'; Duca Richard 2. small 1,2*; Electrodynamics; GE*; Hitachi' ; Lenco*; Dynair 1,2'; Dynasciences 2' E

3. 1 Marconi* ; NEC*; Panasonic*; Philips AV*; ENG Opt Sys 2; GBC 2'; Ind Sciences 2

QSI*; RCA*; Sony Corp*; Telemation* Nuclear 2*; Lines 3; 3M Mincom 2 . M 1,2*; NEC 1,2*; Panasonic 2*; Rich Camera Lenses and AIC*; Angenieux*; Belden Comm"; Bosch & Hill 1,2*; Ross 1,2'; Shintron 2'; Sony Accessories Lomb'; Canon*; CEI*; Cohu*; Dynasci- 2*; Technisphere 3; Telemet 3; TRI ences*; Fujinon*; GBC*; GE*; Ikegami*; Viscount 1,2*; Vital 1,2"; Grass Valley 1. IVC*; Javelin*; Lenzar*; Marconi*; Panasonic*; Rank*; Tele-Cine*; Visual Routing Switchers American Date; Avtel*; CDL'; Comte Methods*; Cosmicar'; Zoomar Datatek'; Di-Tech; Duca Richards° Dynair*; Dynasciences*; Elec & Opt Sy Camera Heads, AIC*; Cinema Prod'; Cohu*; GBC*; Ind. Sciences"; Inter Nuclear; Marc Mounts, Dollies, Ikegami*; ITE*; IVC*; KVC*; Listec*; NEC"; QSI; Richmond-Hill*; TeleMal ENG braces, etc. O'Connor*; Panasonic*; Quick-Set*; RCA*; Telemet*; Vamco; Viscount'; Vital'; Saki*; Television Products* Valley*

Remote Control Cunningham Corp*; ITE*; Tele-Cine*; Signal Equalizing Datatek*; Ind. Sciences*; NEC"; Mounts Power Optics System Valley

Character Gens Ann Arbor 1; BJA 2*; Chyron 1,2*; Comad Sync Generator CDL 6*; Cohu 1 -3'; Cooke 1*; 1. alpha-numeric gen 1*; Datametrics 1,2*; Datatron 1*; Ikegami System sciences 1 -3,5'; Elec & Opt Sys 1,4*; 2. graphics generator 1,2*; Knox 2; 3M Mincom 1,2*; MSI TV 1*; 1. sync 1,2*; Grass Valley 1,3'; Hitachi 1; Ike Shintron 1*; System Concepts 1,2*; Tele- 2. color bar 1-3*; Ind Sciences 1*; Lenco 1-5,7'; mation 1,2*; Thomson CSF 1,2*; Video 3. black burst Mincom 1,2*; Marconi 1*; NEC 1-3'; Phi Data Sys 1*; Visionary Elec 2; Laird* 4. stairstep/ramp 1-5*; RCA 1-3*; Richmond-Hill 1'; Rho° 5. multiburst Schwarz 1,4,5*; Shintron 1*; Technispll Chroma Keyers American Data 1 *; CDL 1-3*; Comp'uter 6. digital sync 7; Tektronics 1,5*; TeleMation 1-5'. Ti 1. RGB Image 1*; Comtec 1*; Dynair 1,2 *; Dyna- decoder met 4,5*; Thainer 1*; Thomson C 2. encoded sciences 2*; Image Transform 1*; Ind. 7. gen-lock 1-5*; Ultra Audio Pixtec 1*; Video / 3. luminance Sciences 1*; Inter. Nuclear 1*; 3M Mincom 1-5,7*; Video Data Sys 1,2*; Vis. Info I 1*; Panasonic 3'; RCA 1*; Telemet 1-2*; 1,2,4,5*; Vital 1,3,6"; Control Concepts,: Thomson CSF 2*; Viscount 1*

Color Correctors CMC*; Datatek*; Ikegami*; Inter. Nuclear*; Switchers, American Data"; CDL*; Computer Imat NEC*; Rank*; RCA*; Television Equip automated Comtec*; Duca-Richardson"; 3M Mina) Assoc*; Thomson CSF* NEC*; Panasonic*; Vital*; Grass Valley .."

Color Encoders CEI*; Cohu*; GBC*; Ikegami *; Lenco*; 3M Standards Elec & Opt Sys*; Fernseh'; Marconi'; IV Mincom*; Marconi *; NEC*; Philips*; Rank*; Converters Consultants*; Richmond-Hill RCA *; TeleMation* Synchronizer CVS 2*; Micro Consultants 1' Micro) Dropout Arvin/Echo*; Asaca*; 3M Mincom*; Micro- 1. frame 3*; NEC 1,2*; RCA 1*; Vital 1* Compensators time*; Micro Consultants*; NEC*; RCA* 2. field Film Telecine Buhl Optical 1,2,3*; Clewer 1*; Cohu*; Videotape Ampex 1*; Calvert 3'; DuPont 1'; Fuji Equipment Fernseh 1,3,4*; GBC 1*; Ikegami 1-4*; IVC 1. new tape Goldmark 3'; Internt'l Audio 1"; Kaitro 1. 16mm projectors 3,4*; Marconi 4*; MSI TV 2*; Panasonic 3*; 2. tape cleaning & 2*; Karex 1; 3M A/V 1*; Memorex Pt 2. slide projectors Philips Rank RCA 1-4*; 4*; 2,4*; Spindler & evaluating sonic 1*; Recortec 2'; Sony Brdcst 1"; S 3. multiplexer Sauppe 2*; Telecine 3*; Thomson CSF 4*; 3. reprocessed tape Corp 1*; Studio Tape Exchg 2,3*; The 4. complete systems Zei-Mark 1-4*; Harris 1-3*; Kodak 1-3*; Tape Co. 1-3* Laird 1-3*; Singer 1,3*; TeleMation 1-4*

Film to Video Multi-Track*; W.A. Palmer"; Tele-Meas- Time Base Ampex 1*; Arvin/Echo 1; Asaca Transfer urements; Goldmark Comm. Correctors 1-3*; Digital Video 1-3; Edutron 1; Kar 1. helical State Micro Consultants 1-3*; Micro' Image Enhancers Asaca*; Cohu*; Dynasciences*; Hitachi*; 2. helical 1-3"; NEC 1-3"; RCA 1,3*; Sony Br Ikegami *; 3M Mincom*; Microtime*; NEC*; non-capstan servo 1-3*; SystaMatics 1* Rank*; Thomson CSF*; Video-Optics*; 3. quad Telemet* Videotape Acces. Annis 10*; Arvin/Echo IP; Kaitronics 5' Monitors, picture Amtron 2*; Asaca 1*; Audiotronics 1,2*; Ball 1. tape cleaners A/V 1,2,4,7,*; Microtran 9"; Neumade 1. b&w Brothers 1,2*; Belden Comm 1*; Cohu 1,2*; 2. VTR head cleaners 6,8; Nortronics 9"; N.O.V.A. 1'; Optei 2. color Conrac 1,2*; Elec. & Opt. Sys 1,2*; GBC 3. replacement heads Panasonic 4*; RCA 6,9*; Recording Su 1,2 *; Hitachi 1,2; Ikegami 1,2*; Javelin 1*; 4. reels 4*; Recortec 1,5,7,8*; Television E Panasonic 1,2*; Philips 2*; RCA 2*; Rhode 5. tape evaluators Assoc 1*; Videomax 3* & Schwarz (Barco) 1,2 *; Sharp 1,2*; Sony 6. storage Brdcst 2 *; Sony Corp 1,2*; Tektronix 1*; 7. tape tension gauge Tri-Tronics 2 *; Unimedia 2*; Video Aids 8. rewinder 1,2*; World Video 2*; Electrohome 1,2; 9. bulk erasers Broadcast Elec. 1* 10. demagnetizers

60 SEPTEMBER, 1976-E' www.americanradiohistory.com motape Akai 2*; Ampex 1,2*; Arvin/Echo 2*; Asaca reorder/Players 1*; Avonix 2.4*; Avtel 4*; Fernseh 3*; GBC ad 2*; Hitachi 2.3*; Ikegami 2*; IVC 2-4*; Jave- lical lin 2'; Merlin 1 *; NEC 1,2"; Panasonic 2*; 3. FILM EQUIPMENT gmented-helical Philips 2*; RCA 1,2,4*; Recortec 1,4 *; Sony tomated Brdcst 2*; Sony Corp 2*; Systa-Matics 4*; :stems Vital 4* Cameras, Cine AIC*; Arriflex '; Bach Auricem; Belden Comm.; Canon*; Cinema Prod.*; ECAM*; Ifflead and AF Assoc*; Ampex*; CMC*; Merlin*; RCA': Frezzolini*; Gen'l Cam.; Alan Gordon*; Her- Amine Rebuilding Recortec*; Saki`; Videomax* vic*; Kodak*

Ampei 1-5*; Avonix 1,2*; CDL 3,4*; Camera Lenses AIC*; Angenieux*; Arriflex*; Bosch & vridge/Cassette Channelmatic 4*; Dynasciences 3*; Merlin Lomb'; Belden Comm.*: Canon*; Cinema 1-3*; Microtime 3*; NEC 1,2 *; NES 3,4*; Prod.*; Dynasciences*; Frezzolini*; Her- et yers Panasonic 1,2 *; Philips 1,2*; RCA 1-6*; Re- vic*; Javelin*; Lenzar*; Rank* let:orders cortec 6*; Re-Play 6*; Sony Brdcst 1,2*; 1st °motion Sony Corp 1,2*; Systa-Matics 3*; Vital 4* Camera Tripods & AIC*; Arriflex*; Canon*; Cinema Prod.*; 311t1trollers Accessories Alan Gordon*: Hervic*; Javelin; O'Connor*; ftetriplete auto. Quick-Set*; Birns Sawyer en ;terns Oft cart systems Carrying Cases Arriflex *; Canon*; Hervic*; Multiplier *; Del)aded carts Quick-Set* Film GAF*; Fuji"; Kodak* libtape Editing Automated Processes 1*; Avonix 1*; Beta )o tor-controller Tech 1,3*; CDL 1,2,5"; CMX 1,2,3*; Con- Film Cases Multiplier*; Neumade Prod.* bore code gens vergence 1,3,7"; Datametrics 2,5*; Datatron crime timer 1,2,5,7*; EECO 1,2,5*; Elec & Opt Sys Film Cleaners Neumade Prod.* elicers 2,5,7*; ESE 3*; Kaitronics 2,5*; Merlin 3*; bore code reader MicroVision 1,2*; RCA 1-6*; Recortec 1-3*; Film Editing Clewer Cml. *; Hervic*; Neumade Prod.*; oa :essories Skotel 2,5*; Sony Brdcst 1,2*; Spectr-Vision Equipment Magnasync/Moviola*; Harwald; Kodak* )o me counter 1-7; Tech Elec 1*; Technisphere 1; TRI 1,2,5*; Vamco 3: Visual Aids 1* Ampex 1' Film Processors AIC*; Jamieson*; Kreonite*; Pako; Technology Inc.*; Treise* idtlape Ampex 1*; Arvin/Echo 2*; Microtime 2*; Aw.::ator Panasonic 2*; Sony Corp 2* Film Projectors AIC 1*; Arriflex 1*; Fernseh 1*; Clewer Cml. id 1. motion picture 1*; GAF 1,2*; Alan Gordon 1*; Kalart Victor er 2. slide 1*; L-W Int. 1,3*; Magna-Tech 1,3*; W.A. 3. flickerless Palmer*; RCA 1-3* Him to Film Ikegami*, Palmer Film; Teledyne railer Magnetic Film Agfa-Gevaert 1,2*; Capitol Mag. 1*; Clewer 1. recording Cml. 1*; 3M A/V 1*; RCA 1*; Stand. Tape Identification Ampex*; CDL*; Grass Valley* 2. test Lab. 2* yams Magnetic Recording CMC*; Magna-Tech*: MCI*; RCA*; Tran- lei Discs Amcomp*; Ampex*; Arvin/Echo*; CMC*; Equipment & sist-O-Sound* Eigen* Assessories lab Effects Arvin/Echo 2; Beta Tech 1*; BJA 1,2,5*; Co- Misc. Film Arriflex 1*; CPAC 1*; Magna-Tech*; Mul- et es lorado Video 1*; Computer Image 2*; CVS 1. pollution control; tronics 1*; W.A. Palmer 3*; Pako 2; iscorizers 6; Elec. & Opt. Systems 1*; Ikegami 1*; Ind. silver recovery Technology Inc. 1* oil-motion Sciences 1*; Telemet 1*; Micro Consultants 2. slide masks & Iste/date 6,7*; NEC 6*; Thomson CSF 1*; J&D Intl 1; mounts 31tderator 3. multi-lock, video *tor contrast and magnetic film ott,luator ietthesizers es*opressors oitositioners LIGHTING/STUDIO 4 EQUIPMENT/SET DESIGN Equip., Misc. Advent 14*; Alexander Mfg. 12; Andersen & An itomatic Assoc. 7; ASACA 6*; Audio-Video Eng. 3*; Lamps ALCO*; Berkey*; Cinema Products*; G.E.*: An. lecine light Avonix 18*; Coastcom 3; Colorado Video GTE Sylvania*; Olesen*; Teledyne*; Varian lo intro' 8*; Comark 16*; Computer Lab 6, 19, 20*; ieo film noise CMC 5'; Cooke 5*; Corley 17*; Datatek Lighting Fixtures Berkey*; Frezzolini*; GBC*; Great Amer. ducers 3,5,21*; ESC 3,5,7; GBC 8; Goldmark 13*; Incl. Stands & Market; Harwood*; Kliegl*; Olesen *; Rosco ieo filters Gruber Prod. 22*; Ikegami 1,14*; Image Hangers Labs*; Smith-Victor*; Teledyne *; Lowel*; imb decoders Mag. 14*; Ind. Sciences 1*; Inter. Nuclear Mole-Richardson*; Strand Century* 5. lualizers 5*; IVC 12*; Kalart Victor 14*; KVC 23*; o. 'D converters Lenco 4,5,8*; McGraw-Edison 16"; Micro Light Dimmer Berkey*; Elec. & Opt. Systems*; Kliegl*; 7.; ieo delays Consultants 6*; Microtime 3,7,13*; NEC Controls Olesen*; Skirpan*; Electronic Diversified*; ieo presence 3,6,8,12,17*; Oregon Mag. 18; RCA 17*; Strand Century* Ji !tector TEA 7,11,17*; Tech Labs 16*; Telecomm. ieo Ind. 11,17*; Tele-Measurements 17*; Tele- Patch Terminals Berkey*; Kliegl*; Olesen*; Union Connect.*; ater/prompter met 7*; Texscan 16*; Thalner 24*; Thomson Electronic Diversified one sync. CSF 6,17*; Ultra Audio Pixtec 17*; Video ewer packs, Aids 25; Vis. Info. Inst. 9*; Zei-Mark 1* Plugs & Connectors ITT Cannon*; Kliegl*; Olesen*; Union Con- is irtable video nect. * :31 .mera ac ito skew Lightmeters & Optics, Minolta ,tr vector Tektronix*; Power rge screen Photometers ojectors Studio Equipment American Cable Svc. 3*; Fiorentino 1*; ieo lock to 1. scenery, prefab. Frank Holmes 4*; Olesen 1*; 0-TV 2*; i. ag. film record 2. titling Rosco Labs 3*; Ultra Audio Pixtec 2*; Video ieo attenuators prompters, 3. set design Data Sys.*; Reynolds/Leteron deo test charts 4. aids slides superimpose lock 'A convertors tglitchers *The asterisk denotes that manufacturers so identified have ver- are in dor phase ified that the products mentioned regular production. Cur- equalizers are on with BM/E. Os, tables rent data on these products file ounts, wall 14 :men splitter A deo line isolator

MEMBER, 1976-BM/E 61 aL www.americanradiohistory.com SOURCE LOCATOR SCA Equipment CCA'; Celec"; Collins Brdcst; Comm! Telecom": Fixture Elec; Johnson Elec'. McMartin*, 5. RF /TRANSMITTING /RECEIVING NES ; RCA'; Rivers Assoc'. Sobel ics; Time & Frequency' Wilkinson*

Translators Acrodyne 2', Ikegami 1 2' Demodulators Catel'; Coastcom; Comark; Dynair. 1 FM Schwarz 1,2'. Tel Technology 1 Fung; GTE Lenkurt; Microwave Assoc'. 2 TV 2*, Versa Count 1,2' Emcee NEC; Optek; RCA Brdcst; Scientific- Atlanta*; Telemet; Ward-Beck'; Wilkinson' Transmitters AEL 1,2'; CCA 1,2' Cetec 1 1 AM Cmml Telecom 12', Cont'l Eled Dip taxers Alford Mfg; Catel'; Cetec; Coastcom. 2 FM CSI 1,2; Harris 1,2'; Ikegami 2': Collins Cmml Telecom; Comark*; Cont McMartin 1,2'; MPD 2; NEC 1.2'; Elec; Ikegami *; Micro Comm"; NEC', RCA Scientific Radio 2'; Sintronic 1 Brdcst' Electronics 2; Versa Count 2'; 1,2'; Wilkinson 1.2' Exciters Acrodyne Ind'; AEL'; CCA; Cetec°, Collins Brdcst'; Collins Cmml Telecom', Transmitters, TV Acrodyne'; CCA'; Dynair CSI'; Ikegami'; Kahn; McMartin'; NEC'. Ikegami; MPD; NEC': Philips*. RCA Brdcst; Sintronic*; Solid Electronics' Ward-Beck'; Wilkinson" Antenna Tuning Unit Fisher-Burke'.

Modulators CCA'; Cetec'; Coastcom'; Comm. Satellite Earth Alden 1,2'; Collins Comml Te Techniques'; Dynair'; Fung'; GTE Lenkurt; Stations Fannon 1,2', Marconi 1.2', Ikegami'; Javelin'; Microwave Assoc'; 1 Transmitter Nurad 1,2"; RF Systems 1.2'; Moseley'; NEC'; Philips'; RCA Brdcst'; 2 Receiver Atlanta 1,2' Rhode & Schwarz'; Scientific -Atlanta': Solid Electronics; UHF Assoc'; Varian': Misc. RF Equipment AEL 15'; Alden 5,16'; Alford Ward- Beck'; Wilkinson" 1. program Andron Corp 7; Arvin/CATV 4; subcarrier liamson 4,8'; Belden 7'; Bird 4-8 RF Amplifiers AEL*; Belar*; CCA*; Cetec'; Comark; 2. carrier current Sound & Power 8'; Catel 1,10 CSI*; Ikegami *; LPB*; McMartin*; Micro- 3. phasing network 1,2,4,10,13'; Coastcom 1'; Colli wave Assoc*; Moseley*; MPD*; Mu -Del'; 4. RF attenuators Telecom 3'; Comark 4.6,8,14'; Nat Elec Labs *; NEC*: Nurad*; RCA 5. facsimile 18'; Cont'l Electronics 3'; CSI 2 Brdcst'; IRHG*; Scientific -Atlanta *; Solid 6. TV connectors 17'; Elcom 19; Electro Impulse 4';l Electronics; Tel Technology*; Ward-Beck*; 7. RF cables 1'; Fisher-Burke 3; Fung 8,14'; Wideband Wilkinson* 8. RF filters 13,14; GTE Lenkurt 1'; Harris 9. RF filter couplers Ikegami 4,14,18'; Lenco 1'. LPB RF Loads Alford Mfg*; Barker & Williamson; Bird Elec- 10. FM processors 1'; McMartin 1'; McGraw -Edisr tronic; Cetec*; Comark'; Cont'l Electron- 11. tubes Micro Comm. 8'; Microftect 20; ics'; Dielectric'; Electro Impulse'; Ikegam- 12. trans. color Assoc. 1,6,8'; Moseley 1,10' ;l i*; Micro Comm"; Microwave Assoc"; RCA*; phase equalizer 4,8,14'; Multronics 3'; Nurad 7'; Texscan*; Ward-Beck* 13. connectors Dodge 8 *; Philips 14'; RCA 1,8,14 14. converters Assoc. 1'; Rhode & Schwarz 4`; TE RF Switchers Barker & Williamson; Cetec*; Collins Comm 15. FM Combiner 4'; Tel Technology 6,8,14'; Tex Telecom*; Comark'; CSI*; Dielectric'; 16. Weather chart Trompeter 7,13 Fung*; Micro Comm'; Multronics*; RCA recorders Brdcst *; Solid Electronics; Texscan* 17. ammeters 18. RF cue system Microwave Alford Mfg 6; Andrew Corp 5,6; Belden 6*; 19. AM sample Equipment Cablewave Systems 5,6*; Cetec 1*; transformer 1. STL & Remote Comark 5*; Farinon 1-4*; GTE Lenkurt 1,2*; 20. passive Pickups Ikegami 1-5*; ITE 7*; Marti 1,2,3*; McMartin repeaters 2. Intercity 1*; Micro Comm 4,5,6*; Microwave Assoc 3. Portable 1,2,3,4*; Moseley 1-4*; NEC 1*; NES 1*; 4. ENG Nurad 1-7*; Phelps-Dodge 6*; Quick-Set 5. Waveguide 7*; Raytheon 2,5*; RCA Brdcst 1,3,4*; RHG ANTENNAS/TOWERS/ 6. Coaxial Cable 1-7*; Tepco 1-4*; Terracom 1-4*; Varian a 7. Supports, portable U. TRANSMISSION LINES equipment Antennas Alford Mfg 2*; Antenna Prod Co Remote Control Cetec*; Comark*; Delta *; Dynair*; Harris*; 1. AM 1,2'; Cetec 2*; Collins Brdcst Systems Kaitronics*; Marti*; Micro Comm*; 2. FM Cmml Telecom 2 *; Cont'l Elect Moseley*; Nat Electro Lab *; NES*; Nurad*; Harris 1,2*; Micro Comm 2': N RCA Brdcst*; Tepco*; Time & Frequency* Phelps-Dodge 2'; RCA 1,2'; Stain

Receivers, Comm & Belar*; Caringella*; Catel*; Comrex*; Cont'l Antennas, Alford Mfg'; Andrew Corp; Anixti Monitor Electronics'; Fixture Elec; McMartin *; Microwave Antennas For Comm'; Antennas Moseley *; RCA Brdcst'; Rivers Assoc"; Bogner Broadcast'; Cablewave S Rhode & Schwarz*: Scientific Radio; Gabriel"; Microwave Assoc'; Sequerra Nurad *; RCA'; RF Systems': Atlanta* 'The asterisk denotes that manufacturers so identified have ver- Antennas,TV Alford Mfg'; Andrew Corp; Bogner ified that the products mentioned are in regular production. Cur- cast; CCA*; Cetec*; Harris': Microd rent data on these products are on file with BM/E. NEC': RCA'; RF Systems': SWR Is

Towers Antenna Prod Co; CCA'; Cetec*: EZ Fort Worth Tower': Gabriel': D. Instant Source Locater Microflect*; RCA*: Stainless'

1. Audio Equipment Tower Hardware & Conn Electronics*: Microftect': M 2. Video Equipment Construction Equip. Philadelphia*: Stainless'; Unarco- 3. Film Equipment Tower Lighting Antenna Prod Co; Dielectric': 4. Lighting/Studio Equipment/ Flash- Tech'; Hughey & Philips'; Set Design Stainless"; Unarco-Rohn' 5. RF/Transmitting/Receiving Equipment 6. Antennas/Towers/Transmission Lines Transmission Line & Alford Mfg'; Andrew Corp; Ante 7. Connectors Comm'; Belden *; Cetec': Comar Measuring/Monitoring/ riel'; Micro Comm'; Microflect'; Timing/Logging Equipment Phelps- Dodge'; RCA"; Rhode & 8. Service Soll*; SWR Inc.; Trompeter 9. Cable TV Equipment 10. Components/Hardware/Systems Waveguide Dielectric'

62 SEPTEMBER, 197 www.americanradiohistory.com CO A PARE OUR STANDARD FEATURES WITH OTHERS. YOUR CHOICE WILL BE MCI-JH-110. Here's the most complete system of reliable and serviceable recorders/reproducers you can buy at a price that's less than other basic systems. Here are some of the features of the MCI-J H-110: :ANSPORT ELECTRONICS speeds (choice out of 4 speeds-334,71/2,15,30 IPS) Independent equalization and bias controls .ully DC, TTL logic control (no relays)Variable speed for each speedRecord head-room: greater ttrol +20% "MVC"(manual velocity control) contin- than 20 dB at IKHz, 15 IPSAutomatic "CUE" usly variable from FF to STOP to RWConstant tape switching when entering recordPLUG-IN 4 ision regardless of reel size or speed "Soft Edit" fea- position head assemblies maintain alignment -e due to special circuit activated only when in "STOP" during configuration changes (V3 to1/2 inch, )de. mono, stereo, quad). www.americanradiohistory.com

Many other features are included in the basic price. (Manufacturer's suggested list price for MCI-J H-110-2-LP, S4293.) For special applications, several options and accessory packages are available. For further information, see your MCI dealer or write: MCI, Inc., 4007 N.E. 6 Ave., Ft. Lauderdale, FL 33308. (305 )566-2853. TLX51-4362 MCI-FTL.

Also available in our custom made overhead bridge cabinet.

Circle 236 on Reader Service Card SOURCE LOCATOR RF Wen WWII Baiter & esolon, (1/0310 brows.. fteln NES' RCA &dea Rhode &

7MEASURING/MONITORING/ Oscilloscopes BeNentinet 14411ete Phirtioft- . TIMING EQUIPMENT P,WIPs. Anode & Scheme SimPeon Tektrons Tekscare Antenna Monitors Delta' Potomac' Santronic CCA Loggers and Copper COW Conbol Design Equipment Digital IGM Mose4ey NES' Clocks, Time Alpha 1 Audio Services 1-4 Boston Sound Printers Systems Power 1' Caringeiia 1 4 6' C,rstec

1 digital clocks Collins Cmrcl Telecom 1 4' Chrono-Log Modulation Beier Cornark 2 master clocks 1-5' Corned 1.5' Cooke 1-4' Datamemcs Monitors Marconi . McGraw -E ow% 3 slave clocks 1 -3.5'. ESE 1-5' Heath 1' Kallman 4 RCA &query& Tyne & F 0 timers McCurdy 1-5' NES 1.5 Pacific Recorders . 5 time distribution 1' OSI 1' Rhode & Schwarz 1' Thainer Sideband Arvahreere Marconi' RCA Rhode & Sc sys 4' Time & Frequency 1-4' True -Time 6 time 1,2.5' 1'. 1.4 standard United Systems VAMCO Spectrum Analyzers Amber Electro Audio Design' receiver Video Data Systems 1' Packard' Kay Electronics Rhode & Schwarz' Systron- Chart Recorders Audio-Technica B&K lost' Heath tronir Texscan' Hewlett-Packard' London Co NES Status £ Alarm Bird Electronics' CCA Celec, Demodulators Comark', Dynair' Fung'. Philips Instr Indicators ris' Moseley'. NES', RCA: RCA Brdcst, Rhode A Schwarz' Assoc United Systems' Field Intensity Arvin/CATV 1.2,3' Castle 3', Delta 1', Automatic TV Marconi' Phtkpe" Rhode Meters Fung 3' Hewlett-Packard 2 3' Potomac Monitors tronix I AM 1-3' RCA Brdcst 1-3' Rhode & Schwarz M 1-3', Sencore 1.3' Sequerra 2' Texscan Vector scopes Elec a Opt Sys' Heath' Test T V 2,3' Audio Pixtec' Frequency Monitors Ballantine Belar Data Precision' EIP' Video Test Lenco' Marconi' Philips' and Counters Gaw. Harris' Heath', Hewlett-Packard' Generators Schwarz Teidronix Via Into Ina McMartin'. NES' Philips Instr Singer Systron-Donner' Texscan Time A Fre- VITS. VIR. Systems Comark Lenco' Philips' quency'. True Time', United Systems' and equipment Schwarz' Tektronix' Telev Assoc' Video Aids' Generators. Audio Ailtech. Amber', Automated Processes' Barker & Williamson'. Cetec' Elpa' Gaw Waveform Monitors Amber Electro' Ball Brothers'. Heath'. Hewlett-Packard' Marconi' Modu- and Analyzers Video' Elec & Opt Sys' Hewiet- lar Audio'. Philips Instr ' Potomac' Rhode Marconi' Rhode & Schwarz' & Singer. Sound Tech' Schwarz'. Shure' Donner Tektronix' Ultra Audio Spectra Sonics, SMC. Tektronix' Ward- Control Concepts Beck': Wavetek; Control Concepts Wow & Flutter Meter DBX ELPA Gotham Audio' Generators, RF Boonton Elec; Cetec Comm Techniques' Della' Gaw; Heath' Hewlett -Packard'. DIFF Phase-Gain Datatek Marconi' NES', Kay', London Co' Marconi- McGraw- Measurement Schwarz' Edison', Philips Instr ', Potomac' Rhode & Schwarz': Sound Tech', Telonic' Tek- EBS Two Tone Elcom ESE' Gaw Inter. tronix' System McMartin' Rivers Assoc'

Generators, Video Lenco 1', Philips Instr 1', Tektronix 1 Video Noise Meter Lenco' Rhode & Schwarz'. T 1. multiple output Texscan 1'. Ultra Audio Pixtec 2'. Video 2. cross pulse only Aids 2'. Video Concepts 2. Impedance Bridges Alford Mfg'. B&K Instr , Boonton Elec. 8. SERVICES Delta' Heath' Hewlett-Packard' Mar- coni' Rhode & Schwarz'. Sennheiser Computer Business Cable Data 3' Cable Facts 3' Simpson Telonic Altair', Texscan' Services; Systems 1,2'. Cox Data 1-3' Coyne Assoc_ 1 broadcasting, TV 1.2'. Jefferson Data 1,2' Kaman Burst Phase Meters Colorado Video. Rhode & Schwarz' 2 broadcasting. 1.2' PSI 1-3' radio Voltmeters, Amber Electro 3, Audio Designs 3': Bal- 3. cable TV Multimeters, etc. lantine 1-3 Biddle Co 1' B&K Instruments Video Equipment Ampro 1.2' CMX 2' Fiorentino 1 Voltmeters 1'. Boonton 1-3 Burwen 3. Data Precision Rental Service 1.2'. NEC 1' Petra 1 2' 2 multimeters 1,2' DBX ELPA 3' Gaw 1 Heath 1-3' 1 production lywood 1 2' Tele-Cine 1' Tri-T 3 dB meters Hewlett-Packard 1,2', ITT Jennings 1* equipment McGraw-Edison 3': Micmix 3 NES 1-3' 2 post production Philips 1,2' Rhode & Schwarz 1,2' Sen- equipment core 1,2': Simpson 1-3. Systron-Donner 1.2'. Tektronix 2', Telonic Altair 3', TM Film Laboratories Frank Holmes' W A Palmer Systems 3': Triplett 1-3. United Systems 1 -3'. Ward-Beck3*, Weston 1-3 Studio Design American Data 2' Ampro 2'. 1 radio Seven 1' Fiorentino 2' Grinnan 1' Frequency Efraton: Tracor' 2 TV Kreonite 1' Lebow Labs 1.2'. Standards, Microtime 2' Multi-Trak 1' NEC Rubidium 1.2 Sound Systems 1.2. 1'. Tele-Measurements 1*. Tn-T Harmonic Distortion Amber Electro': Barker & Williamson'. B&K Ultra Audio 1.2' Westlake 1.2' Meters Instr.: Control Concepts: ELPA: Gaw. Heath': London Co.: Potomac': Sound Video Tape/Film Image Transform', Multi-Trak Tech' Recording Transfer Palmer'

Intermodulation Amber Electro* B&K Instr* Heath' Mobile Van Avooix Rbt Bosch' Chateau Meters Potomac Instr- Sound Tech' Construction IVC'. Philips' Sawyers Holly* Tri-Tronics Phase Meters Bird Electronic': B&K Instruments'. Gotham 'The asterisk denotes that manufacturers so identified Audio': Heath': Hewlett -Packard': Micro- ified that the products mentioned are in regular prod probe': NES': Video Aids rent data on these products are on file with BM/E.

SEPTEMBER 19 www.americanradiohistory.com cording to TRUTONE RECORDS. r.The Stanton ibrated 681 series is our total point of rence in our Disc Mastering Operation" A

"Carl Rowatti, Chief Engineer, adjusting the Program limiters prior to cutting a master lacquer". Lice can be described as a family enterprise ... but ing operation. Everything in the studio is judged - and we gad family! Father Lou Rowatti is the President; Son Carl think perfectly judged for quality-with this great cartridge". if! President and Chief Engineer; and daughter-in-law Professionals can't afford to take chances with quality. ne handles the business end of the operation. They That's why they depend on Stanton in their operations. itiireat pride in their family, in their family's enterprise Each Stanton 681 Triple-E is guaranteed to meet its their products. That's why they insist on using the specifications within exacting limits, and each one boasts always. the most meaningful warranty possible. An individually cal- Dne Records in Northvale, New Jersey always uses ibrated test result is packed with each unit. Iilibrated Stanton Triple-E for A-B comparisons be- Whether your usage involves record- tape and disc. They also use the Triple-E to check ing, broadcasting, disco or home enter- quency response of the cutter head (they'll record a tainment your choice should be the ' 'Hz tone and a 10 kHz tone twice a day to check the choice of the professionals... the Stanton on of the cutting stylus and the high end frequency 681 TRIPLE-E. Hse of the cutter head). make test cuts and play them back, using the for reference, as high as 15 kHz all the way down Write today for further information to: : .-lz. Carl Rowatti says "We use the Stanton Calibrated Stanton Magnetics, Terminal Drive, ries as our total point of reference in our disc master- Plainview, New York 11803

--lath inspects a master lacquer. Carl Rowatti adjusts the pitch computer Carl installs the Stanton Calibrated Lou Rowatti (The Prez) adjusting the high checks the lathe. on the mastering lathe. 681 Triple-E on the playback table. frequency limiter in his cutting room.

Circle 164 on Reader Service Card 1111/1BER, 1976-BM/E 65 www.americanradiohistory.com SOURCE LOCATOR COMPONENTS/ 10 HARDWARE/SYSTEMS

9. CABLE TV EQUIPMENT Batteries Alexander Mfg. *; Rbt. Bosch*; Frezzo Globe*; Topaz*; Versa Count; Yardney

Amplifiers AEL Comm. Ameco 1,2*; AVA 1-3*; Ampli- Cabinets, racks, AMCO*; Emcor *; Grinnan*; Micro-Tr. 1. trunk fier Design 2*; Blonder-Tongue 1,2*; C-Cor enclosures, Neumade Prod.*; Scientific-Atiani 2. distribution 1-3*; Cerro Comm 4; Delta Benco Cascade shipping cases Storeel*; Tektronix*; Tele-Cine* 3. line extenders 1-3, Arvin 3; Dynair 2*; GTE Sylvania 1-3*; 4. IDC Inter. Nuclear 2*; ITI 3*; Jerrold 1-3*; Connectors Alford Mfg."; Andrew Corp.*; AMP; 81 McCurdy 2*; Magnavox; RCA Comm TV Also see cable TV Cablewave Systems *; GAMCO; GBC *; 1-3*; Scientific-Atlanta 1-3*; Telcin 2*; connectors Cannon*; Mohawk*; Olesen'; Pyra, Tocom Winegard 1-3* Tektronix*; Trompter

Antennas, Andrew Corp; Blonder-Tongue"; Bogner Emergency Power Advance Conversion*; Alexander Ml Receiving Broadcast*; Jerrold*; Johnson Elec *; C-COR*; Sawyer Ind.; Soll*; Spectre!, Nurad*; RF Systems*; Scientific-Atlanta"; Winegard* Power Tubes Calvert'; EIMAC'; Eng. Elec G Cable AVA 1,2*; Belden*; Cerro Comm 1,2*; Electrodynamics; NEC*; RCA Elec-01 1. distribution Comm/Scope 1,2; Daburn 1,2*; Gen. Cable Thor; Vacuum Tube* 2. drop 1,2*; Mohawk 1,2*; Pace W&C 2 *; Systems W&C 1,2*; Winegard 1,2* Rectifiers Calvert *; Eng. Elec.*; IRC; RCA D &S'; kinson* Connectors AVA*; Blonder-Tongue*; Cablewave Sys- tems*; Conn Assoc; Daburn; Gamco; GBC*; Surge Protectors Boston Sound & Power*; Calvert'; ITT Cannon; Jerrold"; LRC; Mohawk*; plier *; Sintronic*; Topaz'; Wilkinson* Pyramid; Tektronix"; Trompeter Wire & Cable Alpha Wire*; Andrew Corp.; Belden; BI Converters Ameco 2*; Conn Assoc 1-3; Gamco 2,3*; Brand-Rex*; Calvert*; Daburn, GE 1, standard GTE Sylvania 1,3*; Jerrold 1,2 *; Delta Gen'I Cable; Gotham Audio'; ITT Sup 2. pay TV Benco Cascade; Magnavox ant: Mohawk*; Pace W&C; Phil. Resins 3. filter trap RF Inductors Barker & Williamson*; Calvert *; Macon

Distribution American Tech 1; Audio-Video Eng 1; Transformers Calvert*; GAMCO; Gotham *; MIcrotr Accessories Blonder-Tongue 1,2*; C-Cor 1*; Cerro Topaz* 1. passive Comm 1*; Gamco 1; GTE Sylvania 1*; Jer- 2. addressable taps rold 1"; Telcin 1* Torque Motors Calfor' Head End Ameco; Blonder-Tongue*; Jerrold*; RCA Quartz Crystals Calvert'; Quaker Processors Comm TV*; Scientific-Atlanta*; Telcin* Vacuum Capacitors Calvert*; ITT Jennings* Information Systems Concepts*; Telemation*; UPI* Systems, News, etc. Tools Alpha Wire; Weller-Xcelite Automated Channelmatic*; Goldmark Comm"; Micro- Camera Tubes Amperex*; Eng. Elec.*; RCA Elec. -0 Origination Systems time (Avtel) Hum Bucking Coils Audio Video Eng.; TeleMation* Microwave Andrew Corp; Avantek*; Catel*; GTE Len - Equipment kurt*; Microwave Assoc.*: Nurad*; RHG*; Systron-Donner*; Tektronix*; Tepco* *The asterisk denotes that manufacturers so identifeid ified that the products mentioned are in regular product Non-duplication TeleMation* rent data on these products are on file with BM/E. switchers

Power Supplies C-Cor*; Dynair*; GTE Sylvania*; NES*; Philips*; Sawyer Ind*; Sencore*; Spec- Instant Source Locater trolab*; Systron-Donner*; Tech Labs*; Topaz* 1. Audio Equipment 2. Video Equipment Test Equipment, Alford Mfg*; Ameco*; Avantek* Biddle Co*; 3. Film Equipment CATV Bird Electronic*; Castle*; GTE Sylvania*; 4. Lighting/Studio Equipment/Set Design Hewlett-Packard*; Jerrold*; Kay*; Telemet- 5. RF/Transmitting/Receivin9 Equipment rics; Lenco*; Rhode & Schwarz*; Sencore*; Tektronix*; Television Equip Assoc*, 6. Antennas/Towers/Transmission Lines Texscan*; Vis. Info. Inst.* 7. Measuring/Monitoring/Timing/Logging Equipment Construction Aberdeen 5; Blonder-Tongue 3,4*; Davis 8. Service Accessories Mfg 2,3*; Gamco 6; Gen Cable 1,4-6*; Ver- 9. Cable TV Equipment Underground & Pole meer 2*; Winegard 4* 1. aerial lifts 10. Components/Hardware/Systems 2. trenchors 3. cable installation tools 4. enclosures and pedestals 5. strands 6. pole hardware

Services American Cable Service 2*; Cablevision 1. maintenance Constr. 2,3; Castle 1*; C-Cor 1* 2. design consulting 3. construction 4. finance

86 SEPTEMBER, 197 4 www.americanradiohistory.com Conrac New Product Directory

.1111-- 1111111111 1111"' MOIL

www.americanradiohistory.com

4117811.1M

rM - 1-,`"'

Conrac Model 5700 A compact high-resolution 13V The Conrac Model 5700 is expressly Raster size regulation - Less color monitor for VTR over-console designed for size-limited signal 1% change, 1% to 100% AP mounting. A cabinet configuration evaluation applications in broad- erage Picture Level) at peak is available for portable teleproduc- casting and teleproduction. luminance. tion applications. Cost effective, advanced circuit Black level stability - Less th New 13V high-resolution shadow design with compatible CRT phos- 1% of peak luminance from 1 mask CRT, color compatible. phors. Performance will meet all to 90% APL. small-screen professional applica- Preset for contrast, controls tions. brightness, chroma, phase, and aperture. Brightness and resolution - Mini- mum TV lines, 500 center, 400 Horizontal and vertical delay corners, at 20fL. switches. Linearity and geometry - No point Horizontal AFC time constant in the raster deviates from its switch. proper position by more than 2% Convergence adjustments in front of raster height. pull-out drawer. Convergence - Does not deviate Phase linear aperture correction. more than .020" (.51 mm) in a cen- Switchable NTSC corrective matrix. trally located area bounded by a circle, the diameter of which is New industrial design compatible equal to picture height. Elsewhere, with broadcast VTR over-console the deviation does not exceed .040" modules. (1.02mm). All convergence controls Rigid cast aluminum front. are located in a pull-out drawer, making them fully accessible from the front of the monitor.

www.americanradiohistory.com 1

raModel DZB tness and resolution Mini- ii-styled 15V professy - Raster size regulation - Less than TV lines, 500 center, 400 cor- -..grome monitor for \I 1% 0% to 100% change, APL (Av- at 20fL. .-1) mounting. erage Picture Level) at peak 20fL ergence - Does not deviate 1-,ctangular luminance. 15V CRT than .020" (.51 mm) in a cen- Black level stability Less than hosphor. - located area bounded by a 1% of peak luminance 10% -state. from the diameter of which is to 90% APL. to picture height. Elsewhere :)ack-porch clamp. t eviation does not exceed ,leo input. (.76mm). ( tal and vertical del, ,r size regulation - Less than -s. hange, 0% to 100% APL (Av- within -±1% of pi( Picture Level) at peak 20fL ance. construction, all c'r level stability - Less than Aquick-disconnect. f peak luminance from 10% )/0 APL. u r high voltage supp ist aluminum front..

www.americanradiohistory.com Regional Sales Offices Primary Distributors Primary Distributors Midwestern Region Eastern Region

Western Regional Sales Office Alexander Electronics, Inc. AuViNic Ltd. 600 N. Rimsdale Avenue 1820 Wyandotte Street 1280 Lachaine Street Covina, California 91722 Kansas City, Mo. 64108 St. Vincent De Paul (213) 966-3511 (816) 474-6656 Quebec, Canada H7C William A. Ems (514) 661-5120 Delcom Midwestern Reg. Sales Office 6106 East 32nd Place Cramer Video 3166 Des Plaines Ave. Tulsa, Oklahoma 74135 120 Hampton Avenu Des Plaines, Illinois 60018 (918) 663-9416 Needham Heights, CONRAC (312) 298-8577 (617) 449-2100 Emmons Associates, Inc. John F. Keenan Conrac Division 10700 Lyndale Ave. South Glentronix Limited 600 North Rimsdale Avenue Eastern Regional Sales Office Minneapolis, Minn. 55420 160 Duncan Mill Ro Covina, California 91722 122 E. Main Street (612) 881-1118 Don Mills, Ontario (213) 966-3511 Elmsford, New York 10523 Canada M3B 1Z5 R. P. Hermes Co. Telex 67-0437 (914) 592-5522 (416) 444-8497 9600 Whittier John F. McClimont Detroit, Michigan 48224 Meritron Limited Canadian Office (313) 886-4566 514 Champagne Dr' 514 Champagne Drive Downsview, Ontario Klopf Audio/Video Downsview, Ontario M3J 2T9 Company Canada M3J 2T9 3381 Successful Way (416) 635-9456 (416) 635-9456 Brian Mitchell Dayton, Ohio 45414 (513) 236-5500 Midwest Tele-Comm 3331 N.W. 82nd Aven Meade Electric Primary Distributors Company Miami, Florida 33122 Western Region of Indiana (305) 592-5355 1825 Summer Street I. General Electronics Hammond, Ind. 46320 Midwest Tele-Communk Systems, Inc. (219) 932-2100 Airport Industrial Pat k 1395 Air Rail Avenue 1440 San Pablo Ave. Midwest Tele-Communications Virginia Beach, Va. 2345 Berkeley, California 94702 3000 Carlisle (804) 464-6256 (415) 527-7700 Dallas, Texas 75204 (214) 741-1440 Nortec West Ltd. Midwest Tele-Communii 300 First Avenue 325 West 5th Avenue Rich, Inc. Nitro, West Virginia 2514 Vancouver, B.C., Canada 3531-35 N. St. Martens (304) 722-2921 (604) 872-8525 Franklin Park, III. 60131 North-West Industries (312) 678-3100 Peirce-Phelps, Inc. Fenton Street 5518 Empire Way South 8204 Swiderski Electronics, Inc. Silver Spring, Maryl Seattle, Washington 98118 5456 N. Ave. Milwaukee (301) 565-3660 (206) 725-1400 Chicago, Illinois 60630 (312) 775-3232 Omega Video, Inc. Peirce-Phelps, Inc. 2000 Block N. 59th Stree 14326 Isis Avenue Television Engineering Corp. Lawndale, Calif. 90260 Philadelphia, Pennsylva 519 Rudder Road (215) 879-7000 (213) 679-9021 Fenton, Missouri 63026 (314) 343-5605 Roh's, Inc. Robert Slye Electronics, 3415 N. Washington Blvt 4553 E. Broadway Video Images Arlington, Virginia 22201 Tucson, Arizona 85711 12200 W. Adler Lane (703) 525-7272 (602) 327-5929 West Allis, Wisconsin 53214 (414) 475-0111 Sonocraft Corporation Tri-Tronics, Inc. 29 W. 36th Street 4019 Avenue Tujunga . New York, New York 101 North Hollywood, Ca. 91604 (212) 760-9300 (213) 877-9912 (213) 985-6616 Tele-Measurements, In( 145 Main Avenue Clifton, New Jersey ON (201) 473-8822

Printed in U.S.A.

www.americanradiohistory.com tooadcast Equipment Manufacturers 0:Riding Manufacturers of Cable TV equipment

- manufacturers in.the Source directory-covering 10 major lories-received an extensive BM/E form to complete, ,ating which equipment or products are in regular production. ifacturers were also asked to supply supporting product :ins or catalogs as verification that the product is indeed bona

1 tnd readily available. The VS designation following the product .D ciption indicates that such verification was forwarded and is on Jth BM/E.

ttors that are nationwide exclusive sources for equipment are included in this cturer's section. Non-exclusive distributors are in the rep /distributor section. Field offices r to only for those companies which are advertising this issue. Advertisements are also tferenced under corresponding reps/distributors except for those cases where the -;er elected not to supply this data.

AILTECH (A CUTLER HAMMER antenna towers & accessories; tower design, COMPANY) 19535 E WALNUT DR construction, erection VS CITY OF INDUSTRY CA ALLISON RESEARCH INC 91748 213 965-4911 2817 ERICA PLACE PO BOX line of signal generators & broadcast instrumentation 40288 NASHVILLE TN 37204 615 255-4766 PO BOX 2663 WiEEN COMPANY AIR SPACE DEVICES INC PO BOX 197 limiter/compressor, console modules OUR CITY CA 90230 213 870-5353 PARAMOUNT CA 90723 213 774-4905 ALPHA ELECTRONIC SERVICES INC 3h, irovire, messenger strand, pole line tower accessories: safety devices; climbers (oil/8, buried system accessories 8431 MONROE AVE STANTON CA 90680 714 821-4400 AITKEN COMMUNICATIONS INC multi-function tone generators, (audible, ON -VIDEO LTD 10 VIRGINIA AVE 701 TENTH ST TAFT CA subaudible), digital clocks, remote control 13I1IYACK 10994 914 358-5504 93268 805 765-5403 VS 2 i nrepair service VS automation programmer, audio controller, ALPHA WIRE CORP 711 LIDGERWOOD time control AVE ELIZABETH NJ 07207 201 925-8000 IN DYNE INDUSTRIES INC AKG ACOUSTICS 91 McKEE DR cable, wire; tools VS 3C )MERCE DR MONTGOMERYVILLE MAHWAH NJ 07430 201 529-5900 3I6 215 368-2600 condenser microphones, dynamic ALTEC SOUND PRODUCTS DIVISION emitters & translators; RF amplifiers; microphones, special purpose microphones; 1515 S MANCHESTER AVE ANAHEIM ers VS headphones; audio amplifiers; reverb CA 92803 714 774-2900 systems; turntables; intercon systems VS loudspeakers; microphones; audio consoles; audio amplifiers; turntables, arms, pickups; CE CONVERSION DEVICES CO AKAI AMERICA LTD 2139 E DEL intercoms; audio processing units VS TF IHTH ST PASSAIC NJ 07055 BLVD COMPTON CA AMO AMBER ELECTRO DESIGN LTD 201 778-0707 213 537-3880 itcy 90220 1064 CHEMIN DU GOLF NUN'S ISLAND power supply, uninterruptible portable video cameras, portable videotape 'stems, inverters VS MONTREAL QUEBEC VS recorder/players H3E 1H4 514 769-2730 multipurpose audio test set, audio spectrum INC 1551 7f-`.r CORP 195 ALBANY ST ALCO PRODUCTS OSGOOD ST analyzers VS 3IDGE MASS 02139 ... 617 661-9500 NO ANDOVER MA 01845 617 685-4371 .sette players, cassette tape, machine knobs VS AMCO ENGINEERING CO 7333 W cores, loudspeakers, TV projection AINSLIE ST CHICAGO IL 7 VS ALDEN ELECTRONIC & IMPULSE 60656 312 867-8500 RECORDING EQUIP CO INC racks, cabinets, enclosures VS 1 WASHINGTON ST WESTBORO MA AMCOMP INC 686 W MAUDE AVE DMMUNICATIONS CORP PO BOX 01581 617 366-8551 SUNNYVALE CA i1SDALE PA 19446 .... 215 822-2929 tax recording systems; weather data mplifiers, connectors, standard systems, satellite earth station receivers 94086 408 732-7330 )rs, passive distribution accessories, video disc (ipment, CATV systems design and ALEXANDER MFG CO PO BOX 1645 slow motion recorders VS 3installations VS MASON CITY IA 50401 515 423-8963 AMECO INC PO BOX 13741 PHOENIX batteries, portable power packs, emergency AZ 85002 602 252-5716 power equipment VS cable trunk and distribution amplifiers; ASOCIATES INC 20 BOOKER Pg. to rep/dist section See ad 00-refer head-end signal processors; pilot GTWOOD NJ carrier generators; bandpass filters, combining 201 664-3000 ALFORD MFG CO 120 CROSS STREET networks; CATV test equip & tools; video wilding; mobile van construction; WINCHESTER MA 01890 automation equip, tap for pay TV VS urnkey installations; production 617 729-8050 tnt rentals; color framer editing aid antennas, FM, TV, microwave; diplexers, RF AMERICAN CABLE SERVICE 839 SO VS loads, RF switchers; microwave units; SUNSHINE EL CAJON CA 92020 transmission line & line accessories; 714 444-8258 impedance bridge, CATV test equip VS CATV systems consultants; set design; local aEVAERT INC 275 NORTH ST origination programming VS ..BORO NJ 201 288-4100 ALLIED IMPEX CORP (DIV OF AIC AMERICAN DATA DIV (AIRPAX CORP) is audio tape, mag film, test tapes PHOTO INC) 168 GLEN COVE RD PO BOX 5228 HUNTSVILLE AL VS CARLE PLACE NY 35805 205 837-5180 11514 516 742-7300 audio & video distribution amplifiers; vertical 10TO INC 168 GLEN COVE photographic equip & accessories including interval switcher; master control switcher; CARLE PLACE NY super-8 cameras also optical & misc chroma keyers; pulse distribution amplifiers; 516 742-7300 accessories production switchers; sync generators; film and TV (Soligor), film cameras special effects generators; colorizers, A/D '.:essories (Bauer), film processors ALLIED TOWER CO PO BOX 331 SOUTH converters; video test generators VS VS HOUSTON TX 77587 713 946-9546 See ad pg. 40-refer to rep/dist section

I MBER, 1976-BM/E 73 www.americanradiohistory.com 7 Different Demodulat for Broadcast and Cabl

NEC ON 2L--:-37"Ti'7L-7T-T7-8-171": i071-7777T7

VHF CHANNEL SELECTOR

ALARM E lown HOE SOUND LEM CM CM TNNO

MOE0 VOW WOO WIM

DETECTOR LEVEL

Now Telemet has the right demodulator for every broadcast and cable applicatic

Tunable VHF Fixed Channel VHF characteristics and quality that VHF stations get through th use of Telemet's improved downconverter which minimizes Fixed Channel UHF Chopper interference. This unit is only available as a fixed channel Low Input Sensitivity demod, Model 4501A2. Cable installations can now have a single tunable demodui Broadcasters can now have all the quality and dependability Model 4502B1 for standby operation, that provides all the of the Telemet 4501 Precision Demodulator in an all VHF quality, performance and dependability that broadcasters t channel version, Model 4501A1/4505A1. Whether it's your come to expect from any demodulator bearing the Telemet primary demod, a standby for multiple station operations or for name. A fixed channel demodulator, Model 4500B1 is off-air demodulation as an auxiliary pickup on network feeds, available for all VHF channels; Model 4500B2 is the indust the Telemet Precision Demodulator remains the finest quality best fixed channel UHF demodulator. demodulator available today-at any price. Select the right demodulator for your application from the UHF stations can also get the superior performance following chart. SPECIFICATIONS Model No. 4501A1 4501A2 4501A3 4501A1/4505A1 4500B1 4500B2 450 Frequency Range VHF UHF VHF VHF VHF UHF VHF Application Broadcast Broadcast Broadcast Broadcast CATV CATV CAT Tuner Fixed Fixed Fixed Variable Fixed Fixed Vari Chopper Yes Yes Yes Yes No No Yes Video Frequency Response -±0.5 db ±0.5 db ±0.5 db ±-0.5 db db ±0.75 db -±0.: Differential Gain ±0.5 db ±0.5 db ±0.5 db -±0.5 db -±0.5 db -±0.5 db ±0.!' Differential Phase ±1' ± ± +10 30 ±2° Input Sensitivity

(Min.) 5 my 5 my 1 my 5 my ;1 my 0.3 my 0.3 my 0.31 Price $3800 $3975 $3975 $4775 $1700 $1750 $24

vaNFIANNO, NEW! SYNCHRONOUS DETECTOR $1,050 The New Telemet Model 4504A1 Synchronous Detector, enables measurement of Transmitter Quadrature Distortion, when used with Model 4501 Precision Demodulator. Both the Synchronous Detector and Demodulator's envelope detector utilize the identical RF, IF and band-shaping networks. Comparison of the differential phase between the two detection circuits enables the broadcaster to determine the amount of incidental phase caused by quadrature distortion. For detailed information, write or call today.

A Geotel Company For immediate product information, Call Ken Schwenk, Director of Marketing, Telemet, 185 Dixon Avenue, Amityville, NY 11701 (516) 842-2300. TW-510-227-9850

Circle 165 on Reader Service Card 74 SEPTEMBER, 1976-. www.americanradiohistory.com PA 19047 215 322-5100 SOURCE '76 audio consoles & mixers; audio controls, VS following the description of a company's equalizers, attenuators; tape cartridge products stands for Verified Source. Com- player/recorder; multicart machines; test panies so identified have filed appropriate 3200 Wilshire Blvd. n ule 1. Wiseman tapes; tape accessories, radio facility literature with BM/E indicating the products el Suite 900 Los Angeles turnkey installation VS mentioned are in production and available. )010 213 387-7756 See ad pg. 16-refer to rep/dist section To identify all manufacturers of a particular i Nordsiek 705 Bowie Blvd. Orange product class or category consult the Instant Park 32073 904 269-2544 AMP SPECIAL INDUSTRIES VALLEY 233 W. Hill Ave. Glenn Source Locator pages 56-73. 5. . Munzer FORGE PA 19482 215 647-1000 60137 312469 -6200 IL Ellyn CATV connectors & tools; patch panels & Waterway Rockville . Wilcox 5504 terminals 20853 301 460-1454 RD DES PLAINES IL 60016 .. 312 298-4380 . Trevilliam 2908 Mulberry Pasadena AMTRON CORP 5620 FREEDOM BLVD 713 941-7272 portable TV color cameras; monochrome ;( 77502 APTOS CA 95003 408 688-4445 cameras; heads, quad TBC; video monitors; DuPont 1280 Lachaine St Vincent De color video monitors VS videotape recorder/players VS -I Paul H7C 2N7 PQ 514 661-5120 See ad pg. 168-refer to rep/dist section ELECTRONIC LABORATORIES ASHLY AUDIO 1099 JAY ST ROCHESTER MIKAN 716 328-9560 LW BOX 552 LANSDALE PA ANDERSEN (WALTER M A) & NY 14611 215 822-2929 ASSOCIATES INC 4 MAIN ST EXT mono, stereo, portable mixers and consoles; a41 TARIFFVILLE CT 06081 203 658-7666 filters VS NActers; AM & FM transmitters; SCA equalizers, video delay lines and modules 1010 amplifiers VS ASTATIC CORP BOX 120 CONNEAUT OH ANDREW CORP 10500 W 153RD ST 44030 216 593-1111 3111EAN TECHNOLOGY CO INC 2562 W ro BLVD PHOENIX AZ ORLAND PARK IL 60462 312 349-3300 pickups, microphones, microphone stands earth station antennas; antennas, TV & 602 272-1234 SOUND 10 POMEROY RD microwave; transmission line & line ATLAS udiiidistribution accessories 201 887-7800 connectors; general connectors VS PARSIPPANY NJ 07054 stands & accessories, speakers, 49-12 30TH AVE microphone MI CORP columns VS -1111r1DE NY 11371 214 2741794 ANDREWS TOWER INC 1420 LAYTON AVE gel tssette transport mechanisms VS FT WORTH TX 76117 817 831-1222 AUDIO ACCESSORIES INC 163 WATER ST AM antennas; antenna towers, tower KEENE NH 03431 603 352-2320 CORP 230 DUFFY EX ELECTRONIC accessories; tower lighting patch panels, plugs, jacks, audio connectors 111/nKSVILLE, NY 11803 516 931-6200 VS RF, VHF and UHF, variable Laabes for ANGENIEUX CORP OF AMERICA klystrons, camera tubes AUDIO DESIGNS & MFG INC .zisti capacitors, 1500 OCEAN AVE BOHEMIA NY 4i g. to rep/dist section VS ST ROSEVILLE MI -e 29-refer 11716 516 567-1800 16005 STURGEON 313 778-8400 video camera lenses, cine lenses, lens 48066 .,B -EX ELECTRONIC CORP EOD DIV audio consoles; audio amplifiers, equalizers, accessories & associated hardware controls, MDIENCE PIKE SLATERSVILLE RI processors; VU meters; lens repairing attenuators; audio 371 401 762-3800 VS See ad pg. 49 custom consoles, noise reduction systems, l: video cameras; camera viewfinder speakers VS ltusube, UHF & VHF ferrite circulators See ad pg. 85-refer to rep/dist section ANIXTER-MARK 5439 W FARGO SKOKIE VS AUDIO INTERFACE SYSTEMS INC gs. 11-refer to rep/dist secti IL 60076 312 675-1500 2708 FIFTH AVE S IRONDALE AL mprx 4747 N 16 St Ste D101 Phoenix microwave antennas & accessories; point to 35210 205 956-1321 602 279-9588 point antennas, two way antennas VS 85016 audio consoles, compressor/limiters, audio E mprx 3760 Cahuenga Blvd N accessories VS Hollywood 91604 213 980-4212 ANN ARBOR TERMINALS INC RD MI mprx 11568 Sorrento Valley Rd San Diego 6107 JACKSON ANN ARBOR AUDIO LTD 219 CROSSEN AVE ELK 48103 313 769-0926 92121 714 453-5440 GROVE IL 60007 312 640-1030 display & terminal CRT equip; alphanumeric mprx 3040 Scott Blvd Santa Clara semi-automatic cassette loader VS 95050 408 249-1134 generators VS AUDIONICS INC SUITE 160 10950 SW mprx 1200 S Wadsworth Ste ANNIS (R B) CO 1101 N DELAWARE ST FIFTH ST BEAVERTON OR 97005 G8 Lakewood 80226 303 922-8434 INDIANAPOLIS IN 46202 317 637-9282 503 641-5225 mprx 175 Scott St Elk Grove Village demagnetizing kits, magnetometers VS audio amplifier power; turntables; quad 312 437-8050 60007 matrix equipment VS r mprx 1393 Main St Waltham 02154 617 899-7100 ANTENNA PRODUCTS CO BOX 520 AUDIOSEARS CORP SOUTH ST mprx 19111 W Ten Mile Rd MINERAL WELLS TX 76067 .. 817 325-3301 STAMFORD NY 12167 607 652-7305 #168 Southfield 480775 antennas, AM, microwave towers microphones, dynamic & dynamic mprx 230 Duffy Ave Hicksville windscreens, headsets 11802 516 931 6200 INC ANTENNAS FOR COMMUNICATIONS AUDIO SERVICES INC 3140 E JEFFERSON mprx 4977 Northcutt PI Ste SILVER SPRINGS SHORES INDUSTRIAL MI 114 Dayton 45414 513 278 7351 ST DETROIT PK 486 CYPRESS RD OCALA FL 48207 313 567-0555 mprx 600 Dekalb Pk King of Prussia 32670 904 687-4121 19406 215 265 4240 transmitter computer for fault detection, microwave antennas; earth station antennas stand-by activation; remote control systems; mprx 13773 N Central Expwy Ste VS studio audio switcher, alarm indicators; 1228 Dallas 75242 ...... 214 231 3481 digital clock systems; custom-designed ARISTOCART DIV OF WESTERN & studio equip; automation systems; W. CORP 401 BROADWAY REDWOOD LTD 505 BURRARD ST studios BROADCASTING EBS signal equip VS k 94063 415 367-2011 VANCOUVER CANADA a pe; audio tape recorders/players 604 687-2844 V7X 1C4 AUDIO-TECHNICA US INC 33 SHAWASSEE 31-13 a, studio, multi-channel); audio time VS tape cartridges, test tapes AVE FAIRLAWN OH . n's; var speed ocs; videotape; See ad pg. 160-refer to rep/dist section igo>e recorder/reproducers (quad & 44313 216 836-0246 1c; automatic video cassette stereo & quad phono pickups, microphones, ARP INSTRUMENTS INC 320 NEEDHAM ST arms, headsets, audio chart recorder; record .213 r/reproducer; broadcast color MA 02164 617 965-9700 toe t; time base correctors VS NEWTON cleaners; audiocables VS music synthesizers, audio mixers, portable g. 77-refer to rep/dist section AUDIOTECHNIOUES INC 142 HAMILTON R!! De s also exclusive distributor of EECO VS eLl (see listing) AVE STAMFORD CT 06902 203 359-2312 CORP OF AMERICA mpex 500 Rodier Dr Glendale ARRIFLEX mixers (Allen & Heath), speakers & QUEENS EXPWY (WEST) 91201 213 240-5000 25-20 BKLYN accessories; mike stands & booms (monks); NY 11377 212 932-3403 mpex 3135 Chestnut Dr Suite WOODSIDE amplifiers (H/H); lighting systems; equalizers 16mm & 35mm cine cameras, camera 101 Atlanta 30340 404 451-7112 VS silver recovery VS See ad pg. 175 mpex 2201 Lunt Ave Elk Grove Village lenses, 60007 312 593-6000 AUDIO/TEK INC PO BOX 5012 SAN JOSE .mpex 485 E. MIDDLEFIELD RD 10215 Fernwood Rd Bethesda ARVIN/CATV CA 95150 408 378-5586 301 VIEW CA 94040 .. 415 961-7145 20034 530-8800 MOUNTAIN audio tape cartridge loaders VS .mpex 75 Commerce Way Hackensack RF amplifiers, RF switchers, field intensity 07601 201 489-7400 meters, AM, FM, TV VS AUDI-CORD CORP 1845 WEST HOVEY ,mpex 4130 Linden Ave Dayton AVE NORMAL IL 61761 309 452-9461 45432 513 254-6101 ARVIN/ECHO 485 E MIDDLEFIELD RD audio cartridge recorders/reproducers VS mpex 1615 Prudential Dr Dallas MOUNTAIN VIEW CA 94040 .. 415 961-7145 75235 214 637-5100 portable video tape recorder/reproducers VS AUDIOTRONCS CORP 7428 BELLAIRE AVE NORTH HOLLYWOOD CA 02.3 CORPORATION HNNSYLVANIA BLVD FEASTERVILLE ASACA CORP OF AMERICA 1289 RAND continued on page 76

?14.4BER, 1976-BM/E 75 www.americanradiohistory.com AM, FM, & TV frequency & modulation WILLOW GROVE PA 19090 215 THE SOURCE '76 monitors; RF amplifiers; SCA equip VS color video synthesizer, colorizer See ad pg. 171 B&K INSTRUMENTS INC 5111 W 1 91605 213 765-2645 BELDEN COMMUNICATIONS INC 25 W CLEVELAND OH 44142 216 headsets, microphones, tape cassette 45TH ST NEW YORK NY 10036 chart recorders, impedance bridges, player/recorders, picture monitors VS 212 730-0172 voltmeters, harmonic distortion meters, portable TV camera (Aaton), lenses; intermodulation meters, phase meters, AUDIO-VIDEO ENGINEERING CO 65 NANY monitors; motion picture cameras (Aaton); meters BLVD MERRICK NY 11566 516 546-4239 lenses; monitors; motion picture cameras hum reduction filters, video filters, hum (Aaton), lamps (Lee), diffusion material, gels BLONDER-TONGUE LABORATORIES bucking coils and filters VS ONE JAKE BROWN RD OLD BRIDGE 08857 201 AUDIO/VIDEO PRODUCTS 9336 FOSTORIA BELDEN CORP (ELECTRONIC DIV) CATV headends, signal processing ST DOWNEY CA 90241 213 841-3020 PO BOX 1331 RICHMOND IN MATV equip; CATV test equip; FM & audio automation equipment, controllers, 47374 317 966-6661 antennas pay-TV systems complete systems RF cable; audio cable; wire; transmission lines; coaxial cable VS BOGNER BROADCAST EQUIP CORP AUDITRONICS INC 207 SUMMIT ST 156 HAVEN AVE PORT WASHINGT 901 MEMPHIS TN 38104 276-6338 BELL & HOWELL (AV PRODUCTS DIV) 11050 516 audio consoles; line amplifiers; equalizers 7100 MC CORMICK RD CHICAGO IL TV antennas; microwave antennas, FM VS 60645 312 262-1600 antenna AUTOGRAM PO BOX 456 PLANO TX film chains, projectors VS BOONTON ELECTRONICS CORP RTE 75074 214 424-8585 BELL P/A PRODUCTS CORP 1200 N 287 AT SMITH RD PARSIPPANY NJ automation equip; audio amplifiers; mono & FIFTH S COLUMBUS OH 07054 201 stereo consoles VS 43201 614 299-1487 FM-AM signal generators; impedance AUTOMATED PROCESSES INC 789 PARK amplifiers, background music systems, bridges; dB meters; RF watt meters; AVE HUNTINGTON NY commercial sound systems VS capacitance test meters 11743 516 427-6024 BORG-WARNER (INGERSOLL PRODU automated multi-channel mixer, audio BENJAMIN ELECTRONIC SOUND CORP DIV) See EMCOR 790 PARK AVE HUNTINGTON NY consoles; audio preamps; distribution, power, ROBERT BOSCH CORP See Fernseh line amplifiers; audio attenuators; equalizers; 11743 516 673-8600 audio equip; compressor/limiters; tape machine CCTV equip BOSTON INSULATED WIRE & CABLE synchronizers, memory units, tape editing 65 BAY ST BOSTON MA equipment VS BENNETT TOWER PAINTING 02125 617 2 6104 EVERGREEN HOUSTON TX cable systems for TV cameras, connect AVA ELECTRONICS 242 PEMBROKE AVE 77036 713 776-0979 LANSDOWNE PA 19050 215 284-2500 tower painting, maintenance VS See ad pg. 159 cable TV multiple dwelling terminals; Calif BIW 12902 South Spring Street Los distribution amplifiers, line extenders; coaxial BERKEY COLORTRAN INC Angeles 90061 213 535 VS connectors; passive accessories 1015 CHESTNUT ST BURBANK CA Can BIW 118 Shaw Street He milton, AVANTEK INC 3175 BOWERS AVE SANTA 95102 213 843-1200 Ontario 416 5 CLARA CA 95062 408 249-0700 studio lights, stands, controls, filters, BOSTON SOUND AND POWER SYSTE CATV test equip, microwave amplifier VS accessories VS 3 FREDITH RD WEYMOUTH MA AVONIX DIV OF AV ELECTRONICS INC 02189 617 33 BESTON ELECTRONICS 9024 W 51ST RF filters, voltage transient suppressors, PO BOX 505 BROOKFIELD WI TERRACE SHAWNEE KS 53005 414 784-1800 mini mixers, digital clocks, precision pow 66203 913 362-4400 supplies videotape editor-controller, V-lock system, automatic density light controls; oscilloscope mini-console; CU adaptors for Sony zoom vector displays, rack frames BRAND-REX CO PO BOX 498 lens; video cassette equipment storage WILLIMANTIC CT 06226 ..... 203 4 cabinet, mobile van construction BETA TECHNOLOGY INC 94 VERDI ST flexible transmission line, coaxial cable, FARMINGDALE NY 11735 516 293-4313 & cable AVTEL CORP 1280 BLUE HILLS AVE sync generator assignment control; digital BLOOMFIELD CT 06002 203 242-0761 timer; videotape editing timing control; BROADCAST ELECTRONICS INC video information systems for pay cable, display systems; colorizer; time code 8810 BROOKVILLE RD SILVER SPRING video switcher, automatic videocassette generator VS MD 20910 . 301 58 player VS single and multi-deck cartridge machines,: BETHANY INTERNATIONAL INC recorders, cart machine accessories; suck 5750 BINTLIFF SUITE 201 HOUSTON TX consoles; audio processing and distributic 77036 713 783-1260 amplifiers, sound studio equipment and audio distribution amplifiers VS accessories; video monitors, tapeheads BEYER DYNAMIC 155 MICHAEL DR (Spotmaster) B SYOSSET NY 11791 516 364-1900 See ad pg. 162-refer to rep/dist section microphones, wireless microphones, BROADCAST EQUIPMENT LEASING C( headsets, mic accessories VS 1412 GRANT BLDG PITTSBURGH PA BACH AURICON INC 6950 ROMAINE ST See ad pg. 107-refer to rep/dist section 15219 412 281.1' HOLLYWOOD CA 90038 213 462-0931 BIDDLE JAMES G CO TOWNSHIP LINE & leasing programs for broadcast & CATV heads, mounts & dollies; cine cameras & JOLLY RDS PLYMOUTH MEETING PA equip lenses 19462 215 646-9200 SOUND ASSOC PO BOX t CATV test equip VS BROADCAST BALLANTINE LABORATORIES INC PO 337 BLUE BELL PA 19422 .... 215 5361 BOX 97 BOONTON NJ B I ELECTRONICS 128 DONALDSON CTR warning lights, stylus scales, turntables, 07005 201 335-0900 BOX 8813 GREENSVILLE SC pick-up arms, stereo and quad (Satin) frequency counters; dB meters; voltmeters; 29604 803 277-2759 waveform monitors; oscilloscopes teletype alarm systems VS BSC INC 2932 RIVER ROA D RIVER GROVE IL 60171 . 312 451 BALL BROTHERS RESEARCH CORP BIOMATION 10411 BUBB RD CUPERTINO portable consoles, mixers ELECTRONIC DISPLAY DIV PO BOX 3376 CA 95014 408 255-9500 ST PAUL MN 55165 612 786-8900 analog to digital color video digitizer BUHL OPTICAL 1009 BEECH AVE color & b&w monitors; video signal PITTSBURGH PA 15233 ...... 412 32t multiplexers; special effects generators VS BIRD ELECTRONIC CORP 30303 AURORA CCTV film chains; slide projector; multlph RD CLEVELAND (SOLON) OHIO w.o. dedicated cameras BARKER & WILLIAMSON INC CANAL ST 44139 216 248-1200 See ad pg. 167 BRISTOL PA 19007 215 788-5581 RF wattmeters; RF loads; RF filters; RF CO TIME RF amplifiers; audio test equip, RF coils VS attenuators; status & alarm systems VS BULOVA WATCH INC-AM PRODUCTS DIV 61-20 WOODSIDE AV8 BASF SYSTEMS CROSBY DR BEDFORD BIRNS SAWYER INC 1026 NO HIGHLAND WOODSIDE NY 11377 ...... 212 331 MA 01730 617 271-4000 AVE LOS ANGELES CA studio clock systems & frequency stanc). audio tape; calibration tape, videotape VS 90038 213 466-8211 BAUSCH & LOMB SOPP 1400 NO camera heads, tripods, dollies; camera & GOODMAN ST ROCHESTER NY 14602 lens accessories; film editing equip; lights & 716 338-6266 light stands TV camera lenses; motion picture camera C lenses; spectrum analyzers VS BIRNUP & SIMS PO BOX 2431 WEST PALM BEACH FL 33401 305 683-8311 BCS-See Kaman Sciences cable TV construction, strand mapping, field engineering BELAR ELECTRONICS LABORATORY INC. CABLEDATA 3200 ARDEN WAY BOX 826 DEVON PA 19333 215 687-5550 BJA SYSTEMS INC 666 DAVISVILLE RD SACRAMENTO CA 95825 916 46

76 SEPTEM BER, 1976- www.americanradiohistory.com r

You punch up 15 inches per second for a videotape recorded at 71/2.

AVR3 has the intelligence to play it right.

...nost advanced video- 71/4-inch recording speed

! :recorder in the world comes up looking as good as

. V' the smartest. Even if 15-inches used to. anician goofs and sets But excellent recording t e wrong playback fidelity is only part of the 'd or video band, it'll story. Even the best scenes 'ride the error and play have to be assembled in the ipe the right way. right sequence. And while 1-3 is the only "intelli- the AVR-3 has a truly 41' VTR on the market. advanced editing option, A 'ou'll probably buy you'll go the last mile in AVR-3 for the picture creative freedom when you )duces. Super High- use this recorder in partner- 1 Pilot uses a new com- ship with an Ampex EDM-1, tion of recording Automated Editing System. AM PEX uencies to take video AVR-3 is the VTR from Complete technical and performance ity further than ever Ampex, designed for users specifications are available in a free Ire. Banding is virtually who brochure. Write us at 401 Broadway, can't take chances. Redwood City, California 94063, or ".ng of the past, and call (415) 367-2011.

Circle 166 on Reader Service Card :MBER, 1976-BM/E 77 www.americanradiohistory.com receivers, audio compressors; security Oswego 97034 503 Penn G. Pupa la 401 Carver Dr Beth lehe VS following the description of a company's systems VS 18017 21 products stands for Verified Source. Com- INC 5710 NO CASTLE ELECTRONICS Tex T. Copeland 10523 Maplegrove D panies so identified have filed appropriate WESTERN AVE CHICAGO IL literature with BM/E indicating the products 75218 21 mentioned are in production and available. 60645 312 728-1800 TV field intensity meters; CATV test CHANNELMATIC ELECTRONICS 1234 ADOBE LN EL CAJON CA To identify all manufacturers of a particular equipment, maintenance service VS 92021 714 product class or category consult the Instant CATEL (DIV UNITED SCIENTIFIC CORP) Source Locator pages 56-73. automated videocassette programmer; 1400-D STIERLIN RD MOUNTAIN VIEW CA switchers, routing switchers, distributi 94043 415 965-9003 amplifiers FM modulators & demodulators; FM systems data processing services to CATV VS microwave sub-carrier systems; FM head CHARLES MACHINE WORKS INC (S DITCH WITCH) CABLE FACTS 2444 PALUMBO DR end processors, TV modulators; filters VS LEXINGTON KY 40505 606 269-2323 CATERPILLAR TRACTOR 100 NE ADAMS CHATEAU SEVEN GROUP LTD ST WINNIPEG computerized subscriber billing/management PEORIA IL 61629 309 675-1000 1125 EMPRESS MANIT service with tele-processing emergency power generators R3E 3H1 204 CABLEVISION CONSTRUCTION CORP PO radio studio design, mobile van const BOX 38760 HOUSTON TX CBS TECHNOLOGY CENTER 227 HIGH facility turnkey installation 77088 713 691-1271 RIDGE RD STAMFORD CT 06905 203 327-2000 CHOMERICS INC 77 DRAGON COU Construction services system mapping quadrophonic encoders, test records VS WOBURN MA 01801 617 9 CABLEWAVE SYSTEMS INC 60 DODGE RFI strip gaskets, conductive RFI o -nn CCA ELECTRONICS CORP 716 JERSEY AVE NO HAVEN CT 06473 203 239-3311 shrinkable connector shields AVE GLOUCESTER NJ 08030. 609 456-1716 lines & line connectors; transmission CHRISTY CONCRETE PRODUCTS IN line AM, FM, UHF, VHF transmitters all ranges, microwave antennas; transmission 44100 CHRIST_ Y ST FREMONT CA pressurizing equip; waveguide & waveguide UHF-VHF antennas, FM monitors; STL, 94538 415 6 accessories VS remote pickup equip, towers, SCA equipment, RF amplifiers, exciters, precast concrete & plastic housing for CADCO INC POB 18904, OKLAHOMA CITY modulators, antenna motors VS underground cable systems OK 73118 214 271-3651 See ad pg. to rep/dist section 171-refer CHRONO-LOG CORP 2 W PARK RD. CATV pre-amps, message systems, HAVERTOWN PA 19083 215 8514 antennas C-COR ELECTRONICS INC 60 DECIBEL digital clocks & calendars; time-code CALIFOR (DIV OF ORROX) 3303 SCOTT RD STATE COLLEGE PA generators & readers BLVD SANTA CLARA CA 95050 .. 988-2000 16801 814 238-2461 torque motors VS CATV trunk, distribution, extender amplifiers; CHYRON TELESYSTEMS 233 NEWTON I headend equip; cable passives; CATV test PLAINVIEW NY 11803 516 2494t CALVERT ELECTRONICS INC 220 E 23 ST equip; emergency power equipment; character generators; graphics systems; NEW YORK NY 10010 212 481-5303 maintenance VS titling equip See ad pg. 31 camera pick-up tubes CCTV and broadcast; CENTRAL DYNAMICS CORP Calif CHYRON 851 Burlway Rd Bulingame ' rectifiers, wire and cable; transformers; 230 LIVINGSTON ST NORTHVALE NJ VS 94010 415 341114 surge protectors, other components 07647 201 767-1300 CAMBRIDGE PRODUCTS CORP 101 FOLEY TV automated technical operations systems; CINEMA BEAULIEU DIV HERVIC CORP II, - ST SOMERVILLE MA computerized videotape & audio tape editing 14225 VENTURE BLVD SHERMAN DAMAO 02145 617 666-3343 equip; tape machine synchronizers; CA 91403 213 98148 CATV connectors & "F" fittings, C-D processing amplifiers, chroma keyers, video film cameras & lenses; tripods, camera connectors VS production switchers, pulse distribution accessories; microphones, tape switchers; recorder/players CANON SCOOPIC 10 NEVADA DR LAKE amplifiers, routing sync generators, special effects generators, SUCCESS NY 11040 516 488-6700 colorblock & cue dot generators, time code professional 16mm motion picture cameras; CINEMA PRODUCTS CORP generators, time code readers, video mixing C lenses (including zoom); complete systems 2037 GRANVILLE AVE LOS ANGELES CCTV, CATV video 478 4 -- VS amplifiers; production 90025 213 switchers VS 16mm film cameras; lenses for 16mm CANON USA INC 10 NEVADA DR LAKE See ad pg. 15 cameras; camera tripods, body braces; SUCCESS NY 11040 516 488-6700 Calif CDL 15130 Ventura Blvd. Suite cases, accessories; camera sound recordle video camera lenses, cine cameras & 107 Sherman Oaks 91403 .. 213 789-0574 systems & accessories; audio & location lenses, camera controls and accessories VS III CDL 331 West Northwest Highway lights, light stands, accessories See ad on pg. 43. Refer to rep/dist section Palatine 60067 312 991-4720 See ad pg. 99-refer to rep/dist section Cal Canon OBM 123 Pauiarino Ave E Costa NJ CDL 230 Livingston Street Northvale Mesa 92626 714 979-6000 07647 201 767-1300 CLEAR-COM 759 HARRISON ST SAN III Canon USA 140 Industrial Drive Can CDL 147 HyMuS Blvd Montreal Quebec FRANCISCO CA 94107 415 9891 Elmhurst 60126 312 833-3070 H92-1G1 514 697-0811 portable intercom systems, headphones Can Canon OBM 3245 American Dr Mississanga Ontario, L4V CENTURY PRECISION CINE/OPTICS 10661 BLVD NORTH CLEVELAND/PRICE ENTERPRISES 1138 416 678-2730 BURBANK HOLLYWOOD CA 91601 213 766-3715 12340 LINSHAN DR N HUNTINGTON PA' 4128640 CAPITOL MAGNETIC PRODUCTS 1750 N wide-angle lenses for 16mm & 35mm cine 15642 VINE ST HOLLYWOOD CA use; motion picture accessories camera handle adaptor for attachment of 90028 213 462-6252 umbrella and other accessories cartridge & cassette audio tape; CERRO COMMUNICATION PRODUCTS open-reel CLEWER COMMERCIAL & TECHNICALI film VS HALLS MILL RD FREEHOLD NJ cartridges & cassettes; magnetic SERVICES LTD 836 YEOVIL RD TRADIIr See ad pg. 105 07728 201 462-8700 ENGLAl1 CA CMP 3116 W Ave 32 Los Angeles truck distribution & drop cable; IDC ESTATE SLOUGH BERKSHIRE systems, film edit: 90065 213 255-5103 amplifiers, taps & couplers film projectors, telecine equipment, mag film CMP 2670 Leavenworth Street Suite CETEC AUDIO (DIV OF CETEC CORP) PO 302 San Francisco 415 771-3210 BOX 3941 NO HOLLYWOOD CA CMX SYSTEMS (DIV OF ORROX CORPjf GA CMP 1670 Freeway Access Rd Atlanta 91605 213 875-1900 3303 SCOTT BLVD SANTA CLARA CA 30329 404 321-5441 audio amplifiers, controls; consoles, mixers; 95050 408 98 IL CMP 6401 Gross Point Rd Niles tape duplicators, tape cassette videotape editing equip, portable time cot 60648 312 775-7101 players/recorders; speakers VS generators MA CMP 235 Elm Street Dedham See ad pg. 102-refer to rep/dist section See ads pgs 111, 115 02026 617 329-5770 Calif CMX Los Angeles 213 98 MD CMP Century XXI, 20030 Century Blvd CETEC BROADCAST GROUP NY CMX New York 212 37 CA Germantown 301 428-0795 75 CASTILIAN DR GOLETA Tex CMX Dallas 214241 805 968-1561 MI CMP 550 E Mandoline Street Madison 93017 2346 STAN WELL DR Heights 48071 313 583-9600 see: SCHAFER, SPARTA, JAMPRO VS COASTCOM See ad pg. 129-refer to rep/dist section CONCORD CA 94520 415 8 NY CMP 1370 Avenue of the Americas New Calif J. Chabin PO Box 33 Goleta demodulators; diplexers; modulators; vi York 10019 212 757-7470 93017 805 968-9846 filters; subcarrier amplifiers; program OH CMP 7123 Pearl Road Suite 105 Col M. Shafer PO Box 1193 #40 Grand subcarriers Cleveland 216 888-6010 Junction 81501 303 243-5373 PA CMP #7 Bala Avenue Bala Cynwyd COHERENT COMMUNICATIONS CO Ga B. Thomas 117 Golden Hills Dr Rt 19004 125 835-2450 13733 GLEN OAKS BLVD SYLMAR CA 3 Woodstock 30188 404 926-9008 TX CMP 6730 Oakbrook Blvd Dallas 91342 213 38 Mass R. Dagenals 42 Main St Leominster 75235 214 637-1890 power supplies for cond microphones; 617 534-0441 01453 importer of Rycote windshield; film foots CARINGELLA ELECTRONICS INC PO BOX Mich. D. Lamoreaux 142 Ravine PI Howell counter 727 UPLAND CA 91786 714 985-1540 48843 517 546-5488 clocks, time systems, standard-time Ore D. McDonald 50 Kerr Parkway #50 Lake continued on p

78 SEPTEMBER, 19 www.americanradiohistory.com .LECTION SPECIAL!

verything you need to telecast network quality election results without having to buyequipment or hire special technical staff

7/13our own character reporting of 1976 election re- -ator to put data on air sults including a completely ds after receipt. Up- backed-up system, a written local and national re- election guide, and training /Ade you're displaying seminars for your key elec- r. Choose your own tion personnel. OOLDWATER ly format or match R 184A 36 Ask about the Telesource )rk programming. Use MARSHALL D 121.824 Optional Election Services- ntage reporting or low cost ways to further JI I numbers. And much expand and enhance your 664 station's election coverage )urce makes it happen! IMCNIV" or display flexibility. Durce is Telesource fast. Flexible. Election Telesource Reporting Television 4 y backed-up. Economi- Processing Telephone Co. Service Station IMPORTANT Equipment Equipment' Equipment Equipment 7. 2omplete. Supplied by Locol Tel Co Supplied by Already at Telesource Usually does Telesource Station )urce, through its not require long- Telesource must limit the distance service on Reporting Service News/ number of participating sta- Election Display 3n, is a proven service Service Wire Control tions. Pricing must increase Optional Terminal outstandingly successful as election time draws nearer Controller Station Dt:, (Slot ion because planning, training, rience in the 1972 and Time - Character Tyler shored Generotor Interface) elections. Computer and installation of Telesource and Bock-up Election equipment must be com- is no need to purchase Systems Dora Results In, Set 'put Terminol pressed into a shorter time. >ment or technical exper- (Up-dote) 'Additionoi It's to your advantage to lelesource provides you In-put Terminals act now. (thing you need to offer optionally viewers top quality, avollable. On-Air Call today for a demo. )lete and professional 702-786-2302.

Telesource TELESOURCE COMMUNICATION SERVICES, INCORPORATED 1135 Terminal Way, Reno, Nevada 89510

Circle 236 on Reader Service Card EMBER, 1976-BM/E 79 www.americanradiohistory.com COMMUNICATION TECHNIQUES 1279 RT CA 95050 408 THE SOURCE '76 46 PARSIPPANY NJ 07054 ... 201 263-7200 time base correctors, field synchroniz microwave equipment, modulators, RF video compressor generators VS See ad pg. 103 Ala J. Knight Huntsville COMMUNICATIONS TECHNOLOGY CORP 35810 20 2237 COLBY AVE LOS ANGELES CA Ga D. Tuttle Marietta 30062 404 COHU INC ELECTRONICS DIV PO BOX 90064 213 478-5061 III M. Lang Hoffman Estates 623 SAN DIEGO CA 92112 ... 714 277-6700 CATV splicing, materials, fittinqs 60195 31 TV color & mono cameras, studio & NJ J. Hans 359 Passaic Ave Fairfield COMMUNICATIONS TECHNOLOGY INC portable; color connectors, color encoders, 07006 201 RD HUNTSVILLE AL image enhancers, video switchers, pulse 3070 LEEMAN FERRY Penn D. Smith Southampton 35801 205 883-7370 distribution amplifiers; TV film cameras, 18966 215 telecine chains; color pattern generators, audio switchers, video routing switchers, sync generators; distribution amplifiers VS small and medium video production CONTENDER CORPORATION switchers VS 433 COMMUNITY LANE PO BOX "D", See ad pg. 114-refer to rep/dist section COLLINS COMMERCIAL WOODLAND CA 95695 916 6 TELECOMMUNICATIONS DIV OF COMMUNITY INFORMATION SYSTEMS underground plant construction equip f ROCKWELL INTERNATIONAL 1200 NO JONATHAN VILLAGE CENTER CHASKA CATV ALMA RD RICHARDSON TX MN 55318 612 448-4800 CONTINENTAL ELECTRONICS MFG 95081 214 690-5574 two-way diplex filters for CATV PO BOX 270879 DALLAS TX 75227 214 FM transmitters, AM transmitters, antenna COMPQUIP INC 366 S MAPLE GLENROCK systems, audio control consoles; microwave high-power AM broadcast transmitters; NJ 07452 201 444-3800 5/10 kW transmitters; AM antennas; equip; frequency monitors; audio controllers mfg of fixed lens adapters for TV; distributor & processors, full line consoles; satellite diplexers & RF loads of lenses & film equip; stands, dollies; video See ad pg. 95 earth stations; SCA equipment, RF animation aids VS switchers; facility turnkey installations; dist of CONTROL CONCEPTS CORP 2361 SOJ other lines JEFFERSON DAVIS HGWY ARLINGT VS COMPU/NET INC 8616 LA TIJERA BLVD See ad pg. Cov. 4-refer to rep/dist section VA 22202 703 9 ANGELES CA 213 642-2211 Alaska R.F. Cassady PO Box 2743 Fairbanks LOS video sync generators; audio signal & TV 99707 automated business services for radio generators; harmonic & IM distortion m Ariz Morris Courtright 1450 W Arroyo Dr VS videowaveform equalizers; delay lines; Yuma 85365 602 783-6380 COMPUTER IMAGE CORP 2475 W 2ND sets Fla R.G. Beattie 6300 15th St. No. St AVE DENVER CO 80223 303 934-5801 CONTROL DESIGN CORP Petersburg 33702 813 525-4206 animation equip; large & small production 4920 WYACONDA RD ROCKVILLE M La W.J. Monroe 8427 Ridgemont Dr switchers, routing switchers VS 20852 301 4 Pineville 71360 318 640-3412 See ad pg. 47-refer to rep/dist section radio automation systems; tape cartrid Md C.M. Beverage 10104-M Woodlake Dr players; digital clocks loggers Cockeysville 21030 301 666.7059 COMPUTER LABS INC 505 EDWARDIA DR Mich D.W. Hill 38780 Hartwell Sterling GREENSBORO NC 27409 919 292-6427 CONVERGENCE CORP 1935 SKY PK Heights 48077 313 979-6320 A/D convertors; D/A convertors; deglitchers CIRCLE BLDGS C&D IRVINE CA Minn J.L. Littlejohn 200C West Branch Rd VS 92714 714 Maple Plain 55359 612 479-2633 video editing control systems Mo John Shideler Rt #1 Box 217-B Oak See ad pg. 20, 21 COMPUTER MAGNETICS CORP 125 W Grove 64075 816 443.2080 PROVIDENCIA AVE BURBANK CA Ga Cony 868 E Rock Springs Rd NE Atla 30306 4048 Penn A.A. Silver P.O. Box 941 Levittown 91502 213 849-2356 NY Cony 553 Westchester Ave Portchesteri 19058 215 943-3622 refurbished VTR and audio heads, video Oreg 10573 914931t T.T. Cauthers 1215 S.E. 73rd Ave discs, color correctors, video equalizers VS Portland 97215 503 254-2818 Tenn R.C. Evans Rt. #. 2 Box 12 Glenmore COOKE ENGINEERING CO DIV OF Dr Rockford COMREX CORP PO BOX 269 SUDBURY DYNATECH LABS 900 SLATERS LANE 37853 615 573-9717 MA 01776 617 358-4042 ALEXANDRIA VA 22314 703 5414 Texas W R Sheffield 1200 N. Alma Rd wireless mic systems for news gathering; video, audio & pulse distribution equip; Richardson 75080 214 690-5424 wireless intercom systems; RF cue systems audio equalizers & line amplifiers; patch VS panels; character generators; master cla, systems; time distribution modules COLORADO VIDEO INC PO BOX 928 COMSONICS INC PO BOX 1106 BOULDER CO 80302 303 444-3972 HARRISONBURG VA 22801 .. 703 434-5965 COPPERWELD STEEL COMPANY WI mono cameras, video compression equip; remote switching equip for CATV CABLE DIV 1000 MONONGAHELA AVE1 color synthesizers; special effects generators GLASSPORT PA 15045 412864 VS wire & cable CONCORD COMMUNICATIONS SYSTEMS antennas tower accessories, COLUMBINE SYSTEMS INC PO BOX 790 PARK AVE HUNTINGTON NY CORAL INC 7700 MARINE PLAZA 740 GOLDEN CO 60401 303 279-6629 11743 516 673-8600 RIVER ROAD NORTH BERGEN NJ computer business services for radio, TV VS CCTV cameras, surveillance systems, 07047 201656 cartridge & cassette VTR's, video switchers CATV trunk & distribution equip; passive, COMAD COMMUNICATIONS LTD components 1770 ALBION RD REXDALE ONTARIO M9V CONRAC DIV CONRAC CORP 600 N CORLEY D&S LTD 80 GALAXY BLVD U 1C2 416 745-6494 RIMSDALE AVE COVINA CA 3 REXDALE ONTARIO M9 time code generators (Skotel); digital clocks; 91722 714 966-3511 test materials for CATV master clocks; slave clocks; time distribution TV monitors VS systems (Dynaquip) VS See Insert pg 67-72 COSMICAR OPTICAL CO LTD III Conrac 3166 Des Plaines Ave Des 2-568 SHIMOOCHIAI SHINJUKUKU COMARK INDUSTRIES INC PO BOX 196 Plaines 60018 312 298-8577 JAPAN MAIN LINE IND PARK WESTFIELD MA NY Conrac 122 E Main St Elmsford video camera lenses; camera heads, moi, 01085 413 568-1870 10523 914 592-5522 & dollies; CCTV camera lenses, cine lentil RF amplifiers; RF switchers; other RF See ad pg. 138-refer to rep /diet section equipment; transmission line & connectors; CONSOLIDATED DIESEL ELECTRIC 1500 E COX DATA SERVICES SUITE 100/PRA. demodulators; modulation monitors; VITS, PUTNAM AVE OLD NORTH 5600 ROSWELL RD NE ATLAN VIR, systems and equipment VS GREENWICH CT 203 637-4341 GA 30342 emergency power generators computer systems for TV, AM, F410a48, and 250 I COMMERCIAL ELECTRONICS INC (CEI) CATV, database systems 880 MAUDE AVE MOUNTAIN VIEW CA CONSOLIDATED VIDEO SYSTEMS 415 94040 969-1910 3300 EDWARD AVE SANTA CLARA COYNE ASSOC LTD 39 MAGIL RD TV & cameras, studio portable; color DOLLARD DES ORMEAUX QUEBEC encoders; image enhancers VS Soo ad pg. 117 H9G 1N4 computer aided systems design fo5r1C4A6T2t VS following the description of a company's COMM/SCOPE CO PO BOX 2406 HICKORY products stands for Verified Source. Com- CPAC NC 28601 704 328-5271 panies so identified have filed appropriate INC 2364 LEICESTER RD literature with LEICESTER NY 14481 716 38: 23 drop and distribution coaxial cable for CATV BM/E indicating the products mentioned are in production and available. silver recovery and pollution control systt

COMMUNICATIONS CARRIERS INC To identify all manufacturers of a particular 33 RIVER RD GREENWICH CT product class or category consult the Instant CROCK BRUCE A INC 9118 WINTON R 06807 203 661-7855 Source Locator pages 56-73. CINCINNATI OH 45231 513 521." microwave communications systems storage racks for cartridges

13, 80 SEPTEMBER, 1976- www.americanradiohistory.com New Concept i i Portable Test Equipment

TEKTRONIX TM 515 Traveler surements instead of the logistics of circuits. Intended application areas frame looks like luggage, but getting your instruments to the test range from digital field service to ?.ally a five-compartment main- site. medical, from audio/communica- ) tions to on-site industrial control that provides power and inter- You can optimize your system by maintenance. connections for TM 500 plug-in selecting from over 35 general- Jlar test and measurement purpose and specialized TM 500 For more information, contact your iments. Typically weighing less plug-ins. Plug-ins include DMMs, local Tektronix Field Engineer or 32 pounds (with instruments), counters, generators, power sup- write or phone: Tektronix, Inc., P.O. ;mall enough to fit under an plies, signal processors, logic ana- Box 500, Beaverton, Oregon 97077, ift seat, moisture and dust re- lyzer, oscilloscopes, monitors, and (503) 644-0161 ext. 5542. In Europe: it, and rugged. even blank plug-ins for your custom Tektronix Limited, P.O. Box 36, St. the TM 515, you can take the Peter Port, Guernsey, Channel instruments with you that you Islands. n the lab . . . and maintain the standards in the field. The holds five plug-in instruments, the covers serve as a storage for your TEKTRONIX, accessories. Now you committed to concentrate on making mea- technical excellence

Circle 167 on Reader Service Card 1EMBER, 1976-BM/E 81 www.americanradiohistory.com M9W 1G1 416 241-2651 19898 302 THE SOURCE '76 headend, trunk amplifiers, distribution video tape and video cassettes amplifiers for CATV DURNELL ENGINEERING INC HIGHW, DELTA ELECTRONICS INC 5534 PORT SOUTH EMMETSBURG IA 50536 ROYAL RD SPRINGFIELD VA 712 CROSSROADS AUDIO INC 121 PAYNE ST 22151 703 321-9845 aerial personnel lift trucks DALLAS TX 75207 214 741-6002 antenna/transmitter remote control systems; DYMA ENGINEERING PO BOX 1697T concert sound reinforcement mixer; cable antenna monitors; field strength meters, NM 87571 505 fault tester; speakers, audio production impedence bridges, phase meters; 7 services VS audio switchers, audio effects units, monitoring & test accessories VS cabinetry, See ads pgs. 112, 113-refer to rep/dist section cart storage accessories, CROWN INTL 1718 W MISHAWAKA RD microphones, limiter/ducker amplifiers; ELKHART IN 46514 219 294-5571 DIELECTRIC COMMUNICATIONS DIV OF custom audio consoles, studio builders audio power amplifiers, audio preamplifiers; SOLA BASIC RTE 121 RAYMOND ME variable filters; tape player/recorders; 04071 207 655-4555 DYNAIR ELECTRONICS INC intermodulation distortion test equip RF watt meters, RF loads, RF switchers; 6360 FEDERAL BLVD SAN DIEGO CA waveguide & accessories VS 92114 714 5 CSI ELECTRONICS INC 2607 RIVER RD video pulse & distribution amplifiers, ro DICTAPHONE CORP 120 OLD POST RD CINNAMINSON NJ 08077 609 786-1060 & production switchers, sync generators, RYE NY 10580 967-6211 exciters; RF amplifiers; transmitters, AM, 914 spec effects generators, telephone answering equip modulators, FM; carrier current; status and alarm demodulators, chroma keyers, equalize indicators VS DIELECTRIC COMMUNICATIONS DIV OF exciters, diplexers, sideband analyzers, SOLA BASIC RTE 121 RAYMOND ME audio preamps, audio monitor CUNNINGHAM CORP 10 CARRIAGE ST amps, aud 04071 207 655-4555 switchers, RF switchers, transmitters, HONEOYE FALLS NY 14472 716 624-2000 re RF watt meters, RF loads, RF switchers; control systems remote control pan & tilt units waveguide 8 accessories VS DYNASCAN CORP B&K DIV 1801 W CUSH CRAFT 621 HAYWARD ST DIGITAL COMMUNICATIONS INC 310 14TH BELLE PLAINE AVE CHICAGO IL MANCHESTER NH 03103 603 627-7877 AVE SOUTH ST PETERSBURG FL 60613 312 yagi antennas 327. for CATV 33701 813 895-4201 CATV test equip pay-TV systems & software DYNASCIENCES VIDEO PRODUCTS DIGITAL VIDEO SYSTEMS 519 McNICOLL TOWNSHIP LINE RD BLUE BELL PA AVE WILLOWDALE ONTARIO 19422 215 64 D M2H 2C9 416 499-4826 videotape editing equip; automatic progr time base correctors, special effects controllers; image enhancers, processing generators VS amplifiers, production switchers, pulse & DAB URN ELECTRONICS & CABLE CORP See ad pg. 149 distribution amplifiers, routing switchers, 2360 HOFFMAN ST BRONX NY DITCH-WITCH TRENCHERS PO BOX 66 colorizers, sync generators, special effect 10458 212 195-0050 PERRY OK 73077 405 336-4404 generators, motion compensating lenses wire and cable, CATV distribution and drop trenchers; vibratory plow; earth saw; See ad pg. 18-Call for local distributor equipment VS backhoe; hydraulic breaker VS Contact main headquarters for local office. DATA COMMUNICATIONS CORP (BIAS) See ad pg. 25 E 3000 DIRECTORS ROW MEMPHIS TN DI-TECH INC 315 WYANDANCH AVE 38131 901 332-3544 NORTH BABYLON NY computer service for sales, traffic, 11704 516 643-4040 EASTMAN KODAK CO MOTION PICTU operational accounting (TV & radio) VS video and pulse distribution amplifiers; & AUDIOVISUAL MARKETS DIV 343 STATE ST ROCHESTER NY DATA LOGIC/RUST PO BOX 273 EVERETT passive video switchers; routing switchers; 716 325 - MA 02149 617 658-5410 audio monitor amps 14650 remote control systems motion picture cameras; motion picture fit DIX HILLS ELECTRONICS INC 25 N MALL projectors for TV; film processors DATA METRICS 340 FORDHAM RD PLAINVIEW NY 11803 516 420-1166 See ad pg. 19 WILMINGTON MA 01887 617 658-5410 cross modulation, intermodulation & Calif Kodak PO Box 38939 Hollywood time code generator, digital clocks, master & distortion measurement equip for CATV 90038 213 484 slave clocks; time code readers VS DOLBY LABORATORIES INC Kodak PO Box 3145 Rincon Annex San Francisco 94119 415 778 DATA PRECISION CORP AUDOBON RD 731 SANSOME ST SAN FRANCISCO CA 94111 415 392-0300 Ga Kodak PO Box 4778 (Fed. Annex) Atla WAKEFIELD MA 01880 617 246-1600 30302 404 3 frequency monitors and counters; voltmeters; noise reduction systems; audio processing amplifiers; magnetic recording Haw Kodak PO Box 17007 Honolulu multimeters VS accessories VS 96817 808 8 DATATEK CORP 1166 W CHESTNUT ST DOWNE COMPUTER SERVICE INC III Kodak 1901 W 22 St Oak Brook UNION NJ 07083 201 964-3656 112 TENTH ST DES MOINES IA 60521 312 654 video/audio routing switchers; video, audio 50309 515 282-5131 NY Kodak 1133 Ave of the Americas New & pulse distribution amplifiers; video color subscriber billing services for CATV TV York 10036 212 28 phase equalizers & waveform correctors Kodak 1187 Ridge Road West RocheStO video sweep generators; video test equip; DRACON INDUSTRIES 9541 MASON AVE 14650 716 254 audio processing amplifiers VS CHATSWORTH CA 91311 213 882-8595 Texas Kodak 6300 Cedar Springs Rd Dallas aluminum relay racks VS 351 See ad pg. 8-refer to rep/dist section 75235 214 DUCA-RICHARDSON CORP 11465 W 48TH DC Kodak 500-12th St SW DATATRON INC 1562 REYNOLDS AVE AVE WHEAT RIDGE CO 20024 202 554 IRVINE CA 92714 714 540-9330 80033 303 423-1300 Can Kodak 3500 Eglinton Ave W Toronto videotape editing equip; time code master control, production, and routing Ontario M6M 1V3 ...... 416 766 readers/generators, synchronizing equipment, switchers VS ECAM/ECLAIR CO 6420 SUNSET BLVD', character generators VS See ad pg. 137-refer to rep /dial section See ads pgs. 32, 51 SUITE 304 HOLLYWOOD CA NY DTR 505 White Plains Road Tarrytown DUNCAN ELECTRONICS INC 90028 213 4684 10591 914 631-4060 2865 FAIRVIEW RD COSTA MESA CA professional motion picture cameras (Ede 92626 714 545-8261 DATAVISION MINCOM DIV-3M COMPANY linear faders, electrical slide controls and 15932 SHADY GROVE RD GAITHERSBURG knobs VS EDCO see Rapid 0 MD 20760 301 948-0460 DUNLAP CLARK ELECTRONICS EDCOR DIV OF P.A.C. 3030 RED HILL character generators, video display 230 CALVARY ST WALTHAM MA equipment VS AVE COSTA MESA CA 02154 617 899-2320 714 556.. See 3M Company 92626 audio power amplifiers wireless microphones, dynamic & lavalier;/' DAVIS MANUFACTURING DIV OF J.I. DU PONT (E.I. DU PONT DE NEMOURS & wireless sound systems CASE PO BOX 1801 WICHITA KS CO.) MAGNETIC PRODUCTS DIV EDISON ELECTRONICS See 67213 316 265-6251 GLASCOW SITE WILMINGTON DE MCGRAW-EDISON trenchers for direct cable burial; line layers EDUTRON INC 3700 NE 53RD AVE DBX INC 296 NEWTON ST WALTHAM MA VS following the description of a company's GAINESVILLE FL 32601 904 377- products stands for Verified Source. Com- time base correctors 02154 617 899-8090 panies so Identified have filed appropriate tape recorder noise reduction systems; literature with BM/E indicating the products EECO 1441 E CHESTNUT AVE SANTA dynamic expanders; noise reduction mentioned are in production and available. ANA CA 92701 714 83 modules, gain control modules VS (SEE AMPEX) & editing To Identify all manufacturers of a particular audio video tape product class or category consult the Instant equi; character generators, synchronizing, DELTA-BENCO-CASCADE LTD Source Locator pages 56-73. equipment 124 BELFIELD RD REX DALE ON CANADA continued on pig

www.americanradiohistory.com Rack 'em up.

For studio, broadcasting, recording, or public-address, Shure audio control components offer more features and more performance, dollar for dollar, than similar equipment. And-just as important-Shure audio components are easier to work with. Their compact size and versatility equip them for an extremely wide variety of audio control applications-and built-in input- output flexibility means quick set-up anywhere. For a permanent installation or a component system that can be adapted to meet any need, Shure has the right combination. To obtain a copy of the Shure catalog, see your dealer or write: 0026°' Shure Brothers Inc. 222 Hartrey Ave., Evanston, IL 60204 In Canada: A. C. Simmonds & Sons Limited sFALJI=t nufacturers of high fidelity components, microphones, sound systems and related circuitry.

Circle 168 on Reader Service Card EMBER. 1976-EM E 83 www.americanradiohistory.com .4 DR SUNNYVALE CA 94086 408 245-6600 THE SOURCE '76 tape auto loaders, splicing blocks, open-reel VS following the description of a tape recorders, portable, and decks, tape products stands for Verified Sou duplicators VS panics so identified have filed a (SEE AMPEX) audio & video tape editing literature with BM/E indicating the ELECTROVERT INC 86 HARTFORD equip; character generators, synchronizing AVE mentioned are in production and a MOUNT VERNON NY 10553 equipment VS 914 664.6090 harnessing equip, markers To identify all manufacturers of a EFRATOM CALIF INC 3303 HARBOR BLV product class or category consult ELECTRO-VOICE INC SUB OF GULTON E-1 COSTA MESA CA Source Locator pages 56-73. IND INC 614 CECIL ST 92626 714 556-1620 BUCHANAN MI 49107 rubidium freq standard 616 695-6831 microphones & monitor loudspeakers VS FIDELIPAC 109 GAITHER DR MT EG&G INC ELECTRO MECHANICAL DIV ELPA MARKETING INC PO BOX 1050 NJ 08057 609 MOULTON ST GEORGETOWN MA tape cartridges; cartridge storage r NEW HYDE PARK NY 11040 . 516 746-3002 01833 617 352-6200 accessories; test tapes cable connectors source for tape recorder/players (Ferrograph); tape editing equip (Editall); See ads pgs. 104, 108 EIGEN VIDEO PO BOX 1027 GRASS test equip (Ferrograph signal generators, FILMLINE CORP 43 ERNA ST MILF VALLEY CA 95945 916 273-1341 distortion meters, wow & flutter) turntables 06463 203 color disc recorder VS (Thorens) VS film processors EIMAC, DIV OF VARIAN 301 INDUSTRIAL EMCOR INGERSOLL PRODUCTS 1000 W IMERO FIORENTINO ASSOC INC 10 WAY SAN CARLOS CA 120 ST CHICAGO IL 60643 312 2647800 66TH ST NEW YORK NY 94070 415 592-1221 cabinets; modular enclosure systems 10023 212 complete line of broadcast quality power for testing gray scale of colors, ENGLISH ELECTRIC VALVE CO NO AM kits grid tubes (triodes, tetrodes, pentodes) VS monitor calibratOf LTD 67 WESTMORE DR REXDALE ONT suiting service; color scenery, studio design, TV pr EIP INC 3230 SCOTT BLVD SANTA CLARA CAN M9V 3Y6 416 745-9494 prefab rental CA 95051 408 244-7975 camera tubes, power tubes, rectifiers VS equipment microwave and FM frequency counters See ad pg. 13-refer to rep/dist section FISHER BERKELEY CORP POWELL NY EEV 1 American Dr Cheektowaga ELCOM ENGINEERING PO BOX 10432 CHRISTIE EMERYVILLE CA 14225 716 632-5871 SANTA ANA CA 92711 714 544-5760 94608 415 audio pre-amps, ALC and AGC amplifiers; ESC ELECTRONICS 534 BERGEN BLVD intercom systems compressor limiters, AM sample PALISADES PK NJ 07650 201 947-0400 FISHER-BURKE PO BOX 2468 PHO transformers; tower lighting; EBS systems, delay lines, LC filters; equalizers AZ 85003 602 AM/FM facility turnkey installations VS ESE 5051/2 CENTINELA AVE INGLEWOOD audio distribution amplifier, antenna to ELECTRA CO DIV OF MASCO 300 S CA 90302 213 674-3021 units, custom AM (*lasers COUNTY LINE RD CUMBERLAND IN digital clocks, programming devices, timers; FIXTUNE SOLID STATE ELECTRON! 46229 317 894-3629 tape timer; EBS two tone system VS INC 1 WEST 30th NEW YORK NY See ads pgs. 119, to rep/dist automatic scanning monitors 166-refer section 10001 212 ELECTROCOMP ELECTRONIC MUSIC LAB ESSEX INTERNATIONAL INC one station FM receivers; SCA receive COMMUNICATIONS/CATV DIV 6235 S INC PO BOX H VERNON CT 06066 CORP OF AM HARLEM AVE CHICAGO IL FLASH TECHNOLOGY 203 875-0751 111 LOCK ST NASHUA NH 60638 312 586-3000 music synthesizers 03060 603 coaxial cables, CATV & general; CATV drop strobe beacons for towers ELECTROHOME LTD 809 WELLINGTON ST cables; wire & cable generally N KITCHENER ON CANADA FLUKE JOHN B MFG CO PO BOX N2G 4J6 519 7447111 EVENTIDE CLOCK WORKS INC 265 WEST 7428 SEATTLE WA 98133 800 color-& b&w monitors VS 54TH ST NEW YORK NY frequency counters, calibrators, test s 10019 212 581-9290 gen purpose test equip ELECTRONIC DEVICES INC 21 GRAY audio phase controllers; audio OAKS AVE YONKERS NY 10710 compressor/expander/limiters; audio digital FORGFLO CORP FRONT & REGAN 914 965-4400 delay lines; audio flanger, pitch changer VS SUNBURG PA 17801 717 solid state rectifiers, replacements for magnetic recorder heads for audio vacuum tubes VS E-Z WAY PRODUCTS INC PO BOX 22845 See ad pg. 174-refer to rep/dist section TAMPA FLA 33622 813 677-7144 FORT WORTH TOWER CO INC communication towers VS PO BOX 8597 FORT WORTH TX ELECTRONIC INTERFACE SYSTEMS INC 76112 817 2409 S BROADWAY SANTA ANA CA towers, prefab bldgs. reflectors 92707 714 979-0033 automated video cassette controller (random FREZZOLINI ELECTRONICS INC 7 V access) VS ST HAWTHORNE NJ 07506 201 4 F professional 16mm cameras, lenses, ELECTRO IMPULSE INC PO BOX 870 RED accessories; motion picture lights; po BANK NJ 07701 201 741-0404 power packs for video cameras, batten See ad pg. 10 AM/FM/TV dry loads, cooling systems, RF FAIRCHILD SOUND EQUIPMENT (SEE attenuators; phase meters VS ROBINS BROADCAST & EQUIPMENT See ad pg. 174 CORP) FRIBLEY ENTERPRISES PO BOX 389 CANADA RD PAINTED POST NY ELECTRONEERING INC PO BOX 85 FARINON ELECTRIC 1691 BAYPORT AVE 14870 607 SELMA NC 27576 919 284-2102 SAN CARLOS CA 94070 415 592-4120 terminal boxes for CATV MATV digital timers VS microwave systems; multiplex equip; microwave repeaters; FM over video FUJI VIDEOTAPE, 350 FIFTH AVE, N ELECTRONIC INDUSTRIAL ENGINEERS systems; relay systems for radio & TV YORK, NY 10001 212 7 See RCA Community Antenna Systems broadcasters; microwave accessories; video videotape distribution & subcarrier amplifiers; aural ELECTRONICS DIVERSIFIED 1675 NW FUJINON OPTICAL INC 420 WEST E carrier generator; FM sub-carrier equip., 216TH ST HILLSBORO OR AVE NEW YORK NY 10024 212 7 engineering services VS 97123 503 645-5533 camera lenses studio light controls; patch panels See ad pg. 125 Can FE 657 Orly Ave Dorval PQ FUNG ENGINEERING CO PO BOX 1 ELECTRONICS MISSILES H9P 1G1 514 636-0974 SAN CARLOS CA 94070 415 COMMUNICATIONS INC PO BOX 116 video processing amplifiers, RF conve WHITE HAVEN PA 18661 717 443-9575 F&B/CECO OF CALIFORNIA INC filters, switchers, demodulators, modul 7051 SANTA MONICA BLVD HOLLYWOOD low power TV transmitters for broadcast; TV TV field intensity meters transmitters for ITFS and MJS; TV CA 90038 213 469-3601 translators; TV antennas manufacture & rental of motion picture equip lighting equip sound equip editing equip & ELECTRO & OPTICAL SYSTEMS LTD CCTV equip VS 3015 KENNEDY RD SCARBOROUGH See ad pg. 174 ONTARIO M1V 1E7 416 291-4492 NY 351 W 43rd St New York G audio distribution amps, monitor, power, 10036 212 586-1420 speakers, time code generators, peak FERNSEH GROUP ROBERT BOSCH CORP meters; b&w cameras, monitors, pulse and production switchers, 279 MIDLAND AVE GABRIEL ELECTRONICS PO BOX 6 distribution amps, SADDLE routing switchers, special effects generators, BROOK NJ 201 797-7400 SCARBOROUGH ME 04074 ... 207 studio & portable TV cameras; videotape parabolic, horn & shrouded antennas; standard converters, editing equipment, recorder/players; multiplexer colorizer; lighting controls VS for telecine; elliptical waveguides, tower construction video color monitors; color encoders; TV ELECTRO SOUND INC 160 SAN GABRIEL color standards converter VS continued on

84 SEPTEMBER, 197 www.americanradiohistory.com Quality, Reliability, Service...

Console custom-designed and built by Audio Designs for WKY-TV, Oklahoma City.

When you buy an ADM Console, you buy a company. You buy our skilled engineers and design personnel, our professional know-how and more than ten years COMPONENTS & CONSOLES of experience in building consoles that are unexcelled for audio control for quality and reliability. Audio Designs® has consistently been a leader in innovative concepts and "state-of-the-art" techniques. Our principals have worked on the studio side of consoles-they know what professionals want and to do their demanding jobs faster and easier. And customers know that ADM Consoles are engineered for consistent high performance. That is reason why our customer list reads like a "Who's Who" of the industry. r consoles are manufactured with the finest components for long life and ble-free operation. Hopefully you will never need service, but if you do, we will provide assistance promptly and without question. Our five-year AUDIO DESIGNS AND MANUFACTURING, INC. arranty is the most liberal in the Before you buy any console- 16005 Sturgeon, Roseville, Michigan 48066 industry. Phone: (313) 778-8400, Cable: AUDEX an TLX-23-1114 standard or custom-let us give you some more reasons why 112=CIDISTRIBUTED OUTSIDE U.S.A. ADM Console is your best buy. Call or write us soon. BY AMPEX INTERNATIONAL OPERATIONS. INC.

Circle 209 on Reader Service Card

www.americanradiohistory.com -4 TANDBERG 10XD bridges the gap between consumer and professional tape recorders. Meet the world's first and only 10%2" reel tape recorder that operates at 15 ips and combines Tandberg's unique Cross-Field recording technique with the world-famous Dolby* B system. Result: A guaranteed minimum signal-to-noise ratio of 72 dB, measured on a 4-track machine using I EC A-weighting. Simply put, the 10XD completely eliminates audible tape hiss! Here are some of the many sophisti- Peak reading meters Remote control and rack mount cated features that make the 10XD the Direct transfer from playback to optional. Pitch control by special finest tape recorderTandberg has ever record (flying start) For a complete demonstration t built: of Ferrite playback head with symmetri- remarkable new advance in stere, 3 speeds: 15, 71/2, 33/4 ips. Electron- cal balanced output for hum cancel- tape recording, see yourTandberc ically selected ling purposes and differential dealer. 3 motors; Hall-effect capstan motor playback amplifier. 3 heads; plus separate bias head Electronic servo speed control Electronic logic mode controls, including photo optics Electronic balanced microphone inputs Echo, sound-on-sound, editing, A and B tests

Tandberg of America, Inc Labriola Court,Armonk, N 'Dolby is a trademark of Dolby Laboratories. Inc A. Allen Pringle Ltd., Ontario, Canada

Circle 169 on Reader Service Card www.americanradiohistory.com equip VS SOURCE '76 GOTHAM AUDIO CORP 741 WASHINGTON H ST NEW YORK NY 10014 212 741-7411 condensor microphones (Neumann); audio & lines & connectors; HAMLIN INTERNATIONAL CORP 126 SW ransmission stereo consoles (Faylon); audio disc cutting urnkey installations VS 153RD ST SEATTLE WA equipment (EMT); reverberation units (EMT); 98166 206 246-9330 RP 140 W 51ST ST NEW YORK audio recorder/players (Telefunken); CATV band-pass filters: converters; passive 20 212 582-7600 compressor/limiters (EMT); broadcast head-end processing devices; couplers; s, slide films, motion picture films; turntables (EMT); headsets (Beyer); tape receivers cessing equip; film & slide projectors; timers; flutter meters (Woelke); phase HARRIS CORP BROADCAST PRODUCTS ries VS meters (Neumann); audio attenuators (Danner); polarity testers; rumble meters DIV 123 HAMPSHIRE ST QUINCY IL INDUSTRIES INC 291 COX ST (Neumann); digital audio delay unit; monitor 62301 217 222-8200 LE NJ 07203 201 241-7500 speakers (K&H); wire & cable (EMT); input AM & FM transmitters; radio automation; TV ttings; splitters; directional 1 taps; transformers (Beyer) VS transmitters; TV exciters, modulators, y traptester, passive distribution drivers; RE switches, diplexers; TV, AM, FM ries; transformers; locking GOULD INC 467 CALHOUN ST TRENTON antennas & accessories; TV studio cameras; ors; hardware NJ 08607 609 392-3175 telecine, equip; video distribution switchers, power inverters; battery chargers, batteries color encoders; TV & audio consoles; R ELECTRONICS 4200 N 48TH microphones, turntables, arms, limiting GRASIS FABRICATING CO 5601 GARDNER N NE 68504 402 465-5911 tape cartridge player/recorders; AVE KANSAS CITY MO amplifiers; plication systems; conveyor-type tape tape accessories; monitor speakers; video VS 64120 816 483-1100 broadcast, Monitors; sync generators, waveform CATV, microwave towers; molded recorder/players; phase BROADCAST DIVISION (See fiberglass head-end buildings monitors; videotape CORP.) modulation, frequency monitors; RF THE GRASS VALLEY GROUP INC PO BOX amplifiers; transmission lines & accessories; :0 INC 141 ALGONQUIN PKWY 1114 GRASS VALLEY CA remote control equip., SCA equipment, ANY NJ 07981 201 887-7210 95945 916 273-8421 services VS cy monitors and counters, audio automation equip; video production & routing See ad pg 33 Field offices tors, voltmeters, harmonic distortion switchers; pulse & distribution amplifiers, Ca Harris Corp BE/Div 10960 Wilshire Blvd , EBS two tone systems VS chroma keyers, processing amplifiers, sync generators, special effects generators; Los Angeles 213 477-2577 LOSED CIRCUIT TV CORP. BE/Div 1522 K St NW colorizers; equalizers VS DC Harris Corp H AVE NEW YORK NY See ad pg. 5 Washington 20005 202 223-5508 212 989-4433 NY GVG Station Plaza E Great Neck Ga Harris Corp BE/Div 1745 Tully Circle eras, studio & portable (b&w color); 11021 516 487-1311 NE Atlanta 30329 404 636-9006 mounts; telecine chains; monitors; Calif GVG 4419 Van Nuys BI Ste NY Harris Corp BE/Div 130 E 34th St New en's; spec effect gen; VTRs (helical); 307 Sherman Oaks 91403 213 990-6172 York 10016 212 889-0790 pe; audiotape; coaxial connectors, Ga GVG 1644 Tuille Cir NE Atlanta Oh Harris Corp BE/Div 55 Public Square istribution amplifiers, pulse 30329 404 634-0521 Cleveland 44113 216 781-6322 tion amplifiers VS Tex GVG PO Box 482 Mabank Tx Harris Corp BE/Div 4019 Richmond Ave Houston 77027 713 623-6655 CABLE APPARATUS DIV PO 75147 214 887-1181 AL Pa Gates Div Harris 212 Brunswick Blvd AVE Ind GVG 810 W Bristol St Suite EElkhart 6 5600 W 88TH Pointe-Claire 514 695-3751 INSTER CO 80030 303 427-3700 46514 219 264-0931 On Gates Div Harris 19 Lesmill Road Don lifts; onstruction tools; aerial THE GREAT AMERICAN MARKET PO BOX Mills M3B-2T3 416 447-7234 splicing modules; cable round 178 WOODLAND HILLS CA District managers, radio etc) ction accessories (clamps, 91364 213 883-8182 Al W. Bone 1866 Gatewood Dr Montgomery lighting heads, stands, fixtures; light RAL CABLE CORP 500 W PUTNAM 36106 205 277-4377 projected patterns VS iREENWICH CT 06830 203 661-0100 Ca D Evans PO Box 6566 San Jose tion cable, drop cable for CATV; GRINNAN FIXTURE CO 95150 408 998-8222 processing systems, ventilators; 16041 GEORGETOWN ST NE MINERVA OH Fl I Raulerson PO Box 958 Macclenny i/las; dryers, aerial lifts, pole hardware VS 44657 216 862-2323 32063 904 791-0108 disc and tape storage cabinets, racks; studio Mi D Orienti 56 S Crestview Dr Adrian JIIIRAL CAMERA CORP 471 11TH AVE furniture VS 49221 313 423-4560 41111YORK NY 10018 212 594-8700 Mo K Jones PO Box 1173 Maryland :ea ameras; camera accessories; film GROUP 128 INC 50 SUN ST WALTHAM MA Heights 63043 314 837-0504 Diletic recording equip 02154 617 891-1800 Neb G. Hassinger 1479 19th Ave Waverly electret microphones VS 68462 402 786-2431 URAL ELECTRIC CO MIDPS RM 301 GRUBER PRODUCTS CO 5254 JACKMAN NC R Sawicki 701 G Greenhaven Dr AM 7 ELECTRONICS PK SYRACUSE NY Greensboro 27407 919 855-1146 315 456-3293 RD TOLEDO OH 43613 419 476-7200 4 NY E Karl 130 E 34th St New York -4:4 mobile ENG carts, A/V carts, projection cameras; CCTV systems; lenses; 10016 212 889-0790 & accessories VS tables VS Oh B Emery PO Box 492 Worthington RAL ELECTRIC CO LAMP BUSINESS GTE LENKURT INC 1105 COUNTRY RD 43085 614 436-5103 ON NELA PARK CLEVELAND OH SAN CARLOS CA 94070 415 591-8461 Okla C Lutz PO Box 45107 Tulsa 216 266-2121 microwave equip; remote control systems; 74145 918 251-8808 studio, TV lamps VS remote pickup & STL systems; SC E R Lowder 7209 Stonehaven Drive demodulators; program subcarrier equip VS Columbia 29209 803 776-2059 RAL ELECTRODYNAMICS CORP GTE SYLVANIA CATV EQUIPMENT & Tx L England 4019 Richmond Ave Houston OREST LANE GARLAND TX 713 623-6655 INSTALLATION OPERATION 114 S 77027 214 276-1161 Wa N Arveschoug PO Box W Oak Harbor hrome TV cameras; camera tubes OREGON ST EL PASO TX 79901 915 544-7550 98277 206 675-1574 K St RAL RADIO CO 300 BAKER AVE CATV distribution & truck amplifiers, passive DC P Timple 730 Federal Bldg 1522 ORD MA 01742 617 369-4400 devices, connectors, constr. services VS NW20025 202 223-5508 uip; bridges; sound level meters Wi R Gorjance 3320 Ivy Lane Racine GTE SYLVANIA (LIGHTING PRODUCTS 53402 416 639-7889 RT ENGINEERING CO 3700 N 36TH GROUP) 100 ENDICOTT ST DANVERS MA Distric managers, television HOENIX AZ 85019 602 272-6871 01923 617 777-1900 Ca T O'Hara 2836 E Panamint Ct Westlake I cable connectors, adapters, fittings, studio, theatre & TV lights, accessories VS Village 91360 213 747-7129 ations, accessories, tools GULTON INDUSTRIES INC ENGINEERED DC L Page 730 Federal Bldg 1522 K St NW Wash 20005 E BATTERY 5757 N MAGNETICS DIV 13041 CERISE AVE GREEN Ga G Hardy 3438 Hill Dr Duluth VE HAWTHORNE CA 90250 213 679-0111 MILWAUKEE WI 30136 404 476-4136 I 414 228-2116 CATV standby power & amplifier protection II E Ln Arlington systems V Russell 710 Cherry ies VS Heights 60004 312 255-9230 )MARK COMMUNICATIONS CORP NY D Spindle 130 E 34th St New York )MMERCE RD STAMFORD CT VS following the description of a company's 10016 I 203 327-7270 products stands for Verified Source. Com- Oh B Culbertson PO Box 2927 Rocky River video transfer system; auto skew panies so identified have filed appropriate 44116 216 333-6890 tor; reprocessed tape VS literature with BM/E indicating the products Tex V Killion 707 Rosewood Conroe mentioned are in production and available. 77301 713 623-6655 )ON ALAN ENTERPRISES INC 1430 N JENGA BLVD HOLLYWOOD CA To identify all manufacturers of a particular HARRISON SYSTEMS BOX 213 466-3561 product class or category consult the Instant 22964 NASHVILLE TN 37202. 615 834-1184 n picture cameras, camera mounts, Source Locator pages 56-73. consoles, audio components tors; lenses & accessories; film editing continued on page 88

EMBER, 1976-BM/E 87 www.americanradiohistory.com radio automation systems; multicart THE SOURCE '76 machines; random access memory; auto VS following the description of a com logging systems; cartridge reproducer, products stands for Verified Source. remote control cart handler read out/display panies so identified have filed appr HARWALD CO 1245 CHICAGO AVE units; time/weather announcers VS literature with BM/E indicating the p EVANSTON IL 60202 312 491-1000 See ad pg. 10-refer to rep/dist section mentioned are in production and aval film inspection, cleaning equip; splicers; editing equip IKEGAMI ELECTRONICS (USA) INC To identify all manufacturers of a pa 29-19 39th AVE LONG ISLAND CITY NY product class or category consult the I HARWOOD MFG CO 1800 W FULLERTON 11101 212 932-2577 Source Locator pages 56-73. CHICAGO IL 60614 312 929-1100 portable color TV cameras, accessories, photographic & electronic lighting equip, telecine equipment, production switchers, portable lighting bars monitors VS 2425 S MAIN ST BLOOMINGTON IL See ad pg. 26-27 61701 309 82 HEATH CO BENTON HARBOR MI tape cartridge equip; reel-to-reel; ILC TECHNOLOGY INC 164 COMMERCIAL multi c 49022 616 982-3200 machines, audio recorder/players ST SUNNYVALE CA 94086 408 738-2944 intercoms; tape cartridge equip; See ads pgs. 14, 140 loudspeakers; oscilloscopes; multimeters; CATV tower lighting systems INTERNATIONAL VIDEO CORPORATIO frequency counters; signal generators, of & IMAGE MAGNIFICATION INC rf; distortion meters; impedance bridges; (IVC) 990 ALMANOR AVE SUNNYVALE 538 BLOOMFIELD AVE VERONA NJ 94086 408 73 CATV test equip, (Heath/Schlumberger 07044 201 239-1141 Instruments) VS video color cameras; telecine chains; large-screen TV projection systems VS videotape recorder/players; diplexers; multiplexers; time base correctors HEINDL MASK MOUNTS 200 ST PAUL ST IMAGE TRANSFORM INC ROCHESTER NY 14604 716 454-5080 4142 LANKERSHIM BLVD NO INTERSTATE TELEPHONE ELECTRO mounts & masks for photo slides HOLLYWOOD CA 91602 213 985-7566 PO BOX 34497 DALLAS TX videotape to film transfers, scene by scene 75324 214 24 HELWICK-DOUGLAS ELECTRONICS video correction, chroma keying/matting, stand-by power supplies for head-end 2409 23RD ST GULFPORT MS standards conversions VS microwave, line amplifiers; emergency 39501 601 863-1295 lighting CATV test equip IMPERIAL PLASTICS INC 1015 W HOOVER ORANGE CA 92667 714 532-1671 INNOVATIVE TELEVISION EQUIP BOX HERVIC CORP 14225 VENTURA BLVD watertight plastic underground boxes; plastic WOODLAND HILLS CA SHERMAN OAKS CA 91423... 213 981-2345 conduit for buried systems; cable clips; tap 91364 213 88 Beaulieu cine cameras; Stellovox tape cabinets heads for TV cameras, pedestals, stands; recorders & mixers; lenses & accessories; remote control mounts fluid tripods; film editors, microphones; INDUSTRIAL ELECTRIC REELS INC IONIC INDUSTRIES INC 128 JAMES ST digital FM receiver VS 1125 JACKSON ST OMAHA NE MORRISTOWN NJ 07960 201 53 68102 402 422-1001 music synthesizers, sound effects HEWLETT-PACKARD CO 1501 PAGE MILL cable reels & collector rings RD PALO ALTO CA 94304 .... 415 493-1501 IRISH ELECTRONIC ENTERPRISES IN oscilloscopes, frequency counters, waveform INDUSTRIAL SCIENCES INC (ISI) 3521 SW 270-78 NEWTOWN RD PLAINVIEW NY analyzers, digital multimeters, signal 42 AVE GAINESVILLE 11803 516 29 generators, sweep oscillators, spectrum FL 32608 904 373-6783 video tape analyzers, other test equipment for chroma keyers, processing amplifiers, pulse ITI ELECTRONICS INC 369 LEXINGTON broadcast and CATV; bulk erasers, and distribution amplifiers; production AVE CLIFTON NJ 07015 201 54 automatic data acquisition systems VS switchers, routing switchers; sync CATV video leveler; audio amplifiers and generators; VIRS generators; special effects processing equipment HITACHI DENSHI AMERICA LTD generators; colorizers; automatic telecine 58-25 BROOKLYN-QUEENS EXPRESSWAY light control; signal equalization system VS ITT CANNON ELECTRIC CANADA FOU WOODSIDE NY 11377 212 898-1261 CANNON COURT WHITBY ONTARIO studio & portable color & mono video INOVONICS INC 1630 DELL AVE LIN 5V8 416 66 cameras; video monitors; pulse distribution CAMPBELL CA CATV connectors and plugs 95008 408 374-8300 amplifiers; sync generators; special effects ITT JENNINGS 970 MC LAUGHLIN AVE generator; videotape recorder/players; video solid state replacements for tube-type Ampex recorder audio processing equip VS SAN JOSE CA 95122 408 292 cartridge recorder/players; microwave equip; coaxial switchers, variable vacuum semi-conductors VS See ad pg. 18-refer to rep/dist section capacitors; RF voltmeters; vacuum relays lc INSTRUMENT LABORATORIES CORP coaxial relays & switchers HOLLAND ELECTRONICS INC 842 E 94TH 315 W WALTON PL CHICAGO IL ST BROOKLYN NY 11236 212 649-7330 .... 60610 312 642-0123 ITT SUPRENANT 172 STERLING ST crossbar intercom systems, credit crawls test equip; cable locators; fault finders CLINTON MA 01510 617 36 CATV wire, cable HOLMES FRANK LABS INC 1947 FIRST ST SAN FERNANDO CA 91340 ... 213 365-4501 INTECH LAB 4175 VETERANS HWY lab, filmstrip and slides VS RONKONKOMA NY 11776 .... 516 585-6754 automatic CATV spectrum analyser HOVEY DAVE GENERAL CONTRACTOR J PO BOX 260 COFFEEVILLE MS 38922 INTERAND CORP 450 E OHIO ST 601 675-2956 CHICAGO IL 60611 312 943-1200 studio construction, antenna, tower, and electronic video graphic systems, telestrator, earth station construction; facility turnkey audio graphics, interactive video educating J&D INTERNATIONAL INC SUITE 624 installations VS device VS LEWIS TOWER BLDG PHILADELPHIA P 19102 215 922 HUGHEY & PHILLIPS INC 3050 N INTERNATIONAL AUDIO INC 2934 MALMO monitor, distribution amps; chroma keyerS, CALIFORNIA ST BURBANK CA DR ARLINGTON HEIGHTS IL processing amplifiers, pulse & distribution 91505 213 849-1104 60005 312 956-6030 amplifiers, video production switchers, bla tower lighting, beacons, de-icers VS audio and video tape, cartridge and burst generators, special effects generato See ad pg. 161 cassette; head alignment gauges; tape colorizer, equalizer duplicator VS HUNT-PIERCE CORP 230 OLD GATE LANE JACOBSEN MFG CO SOD MASTER DIV MILFORD CT 06460 203 878-7491 INTERNATIONAL NUCLEAR CORP 3456 WASHINGTON AVE N MINNEAPO aerial platforms; cable handling; pulling 608 NORRIS AVE NASHVILLE TN MN 55412 612 52 equip 37204 615 254-3365 vibratory plows for cable burial chroma keyers; video processing amplifiers; JAMIESON FILM COMPANY 6911 FOR video switchers; routing switchers, pulse PARK RD DALLAS TX distribution amplifiers, burst phase corrector, 75235 214 350- audio distribution amplifier, line equalizer color film processors; film processor amplifier VS accessories INTERNATIONAL RECTIFIER CORP JAMPRO ANTENNA CO 6939 POWER I IDEAL INDUSTRIES 1780 BECKER PLACE 233 KANSAS ST EL SEGUNDO CA RD SACRAMENTO CA SYCAMORE IL 60178 815 895-5181 90245 213 278-3100 95828 916 383 - wire, cable stripping equip high power cartridge rectifiers; high voltage AM, FM, TV antennas; antenna accessorifi rectifier columns; solid state tube IGM DIV OF NORTHWEST TECHNOLOGY replacements INC 4041 HOME RD BELLINGHAM WA 98225 206 733-4567 INTERNATIONAL TAPETRONICS CORP continued on pa

8R SEPTEMBER, 197 www.americanradiohistory.com . So long, spot. Ta-ta tener. about anywhere, for easy light corrected source. ewell, fay-lite. Miss you maxi shipment and setup. They're more to and Molevator, too. They're lighter- economical- Ne've got something better: 20 lbs. for the single head; 35 for PAR64 CSI bulb ething you've got to see- the twin. Easier on your back. delivers lowest try-to believe. Belden/Lee They're brighter- operating cost- pact Source Iodide discharge at 100' and full spot, one 2kW twin per-hour of any ' ps. A two-luminaire system delivers 200 foot candles. At 20' large source lamp. IIht's better than a warehouse- and full spot, it actually delivers They're versatile f,l of conventional film, TV, still 5000 fc! output is perfect for video; can be lei arena lighting equipment ... They're flexible- filtered up for daylight; down for lioecially for location work. change patterns without re- tungsten. Low heat output and :Lircause: lamping. weatherproof, too. Head can be fe They've got instant restrike- They're far more efficient- operated 500' from ballast. uryou get all the benefits of single requires 1000 watts (com- Now that you know what Wide discharge without any pares with 3-5000 watts and up); Belden/Lee CSI lights can do, .diwbacks. twin, 2000 (compares with 6- why not find out more about what ce They're smaller- 10,000 and up). In other words, they can do for you. Write or call . ,.:r x 131/2 x 121/2" for single head; CSI lamps draw only 1/3 to 1/5 the us for more information on 1S x 25 x 12" for the twin. Fit just power of any comparable day- purchase or rental.

Exclusive U.S. Distributor: Sales and Rental Representative: SUSTAINING

Belden CAMERA MEMBER Communications, MART Incorporated The Camera Mart, Inc. por9peda_ 25 West 45th Street 456 West 55th Street New York, New York 10036 New York, New York 10019 (212) 730-0172 (212) 757-6977 Telex: 1-2078

Circle 170 on Reader Service Card WEMBER, 1976-BM/E www.americanradiohistory.com -41 videotape VS ONTARIO M1H 2X1 416 4 THE SOURCE '76 video synchronizing and timing system KAY ELEMETRICS CORP 12 MAPLE AVE sync gens, video pulse and proc amps;", PINE BROOK NJ 07058 201 227-2000 pulse assignment spectrum analyzers; switchers; video test JAVELIN ELECTRONICS 6357 ARIZONA CATV test instruments; equipment rotary attenuators, slide attenuators; RF CIRCLE LOS ANGELES CA generators VS 90045 213 641-4490 LENCO ELECTRONICS 319 W MAIN ST CCTV cameras, lenses, accessories; video KINGS ELECTRONICS CO 40 MARBLE JACKSON MO 63755 314 2434 tape recorders; time and data generators; DALE RD TUCKAHOE NY color encoders, processing amplifiers. pulso picture monitors; video amplifiers VS 10707 914 793-5000 distribution amplifiers; sync generators; blej coaxial & triaxial connectors; high voltage burst generators; video presence detector; JEFFERSON DATA SYSTEMS EXECUTIVE connectors; high density connectors; plugs & changeover switch; helical genlock; progran PLAZA 501 ARCHDALE DR CHARLOTTE jacks VS subcarrier; video noise meters, test NC 28208 704 374-3631 generators; CATV test equipment; equipmel & TV VS KLEIN MATHIAS business data systems for radio SONS INC rental service video camera (mono) 7200 McCORMICK RD CHICAGO IL JERROLD ELECTRONICS CORP 60645 312 588-6820 LENZAR OPTICS CORP 210 BRANT RD 200 WHITMER RD HORSHAM PA hand tools; safety equip for CATV 19044 215 674-4800 LAKE PK FL 33403 305 844.0: camera lenses cable trunk, distribution & line extender KLIEGEL BROS UNIVERSAL ELECTRIC amplifiers; cable passive distributors; STAGE LIGHTING CO INC 32-32 48TH AVE LEXICON INC 60 TURNER ST WALTHAM headend processors; complete headend LONG ISLAND CITY NY MA 02154 617 891-6", systems; turnkey cable installations; cable 11101 212 786-7474 audio digital delay system; variable speed system design; coax connectors; pay-cable lighting control systems & fixtures for remote tape recorder; speech compressor /expands systems; antennas for cable, MATV; pick-up, studio locations VS modulators, demodulators, RF amplifiers; KNOX LTD PO BOX 278 WASHINGTON transmission line -end connectors VS LINDSAY SPECIALTY PRODUCTS LTD GROVE MD 20880 301 840-1930 418 CAREDEAN DR HORSHAM PA JOHANSON MFG CO ROCKAWAY VALLEY graphics generators 19044 215 675-2( RD BOONTON NJ 07005 201 334-2676 KMS ELECTRONICS 13733 GLENOAKS CATV headend antennas; cable connectors; variable capacitors BLVD SYLMAR CA 91342 213 362-2566 trunk & distribution amplifiers; distribution accessories JOHNSON ELECTRONICS INC PO BOX 7 portable battery-operated audio mixers for CASSELBERRY FL 32707 305 339-2111 film & TV VS LINES AUDIO-VIDEO SYSTEMS 219 SO FM & SCA broadcast receiving equip; pa KOLLMORGEN CORP 347 KING ST JEFFERSON SPRINGFIELD MO amplifiers VS NORTHAMPTON MA 01060 413 586-2330 65806 417 862-55 small video switcher/fader JVC INDUSTRIES INC 58-75 QUEENS visual, TV special optical systems MIDTOWN EXPSWY MASPETH NY KORTICK MFG CO 5600 THIRD ST SAN LIPSNER-SMITH CORP 7334 N CLARK ST 11378 212 476-8010 FRANCISCO CA 94124 415 822-6660 CHICAGO ILL 60626 312 338-3C video color cameras; portable video pole line hardware film inspection projectors; film, tape cameras; monochrome cameras; lenses, ultrasonic cleaner KOSS CORP 4129 N WASHINGTON ST head mounts, tripods, camera accessories; EQUIPMENT CORP MILWAUKEE WI 53212 414 964-5000 LISTEC TELEVISION videotape recorders/players; monitors; 39 CAIN DR PLAINVIEW NY headphones, dynamic & electrostatic videotape; video cassette players; video 11803 516 694-89 editor-controller, microphones VS KREONITE INC PO BOX 2099 WICHITA KA tripods, See ad pg. 7 video camera heads, pedestals, 67201 316 263-1111 (Vinten and T.V.P.) Calif JVC 1011 W Artesia Blvd Compton dollies film lab and and 90220 213 537-8230 graphics studio design turnkey installations; film processors VS LONDON CO THE 811 SHARON DR III JVC 3012 Malmo Dr Arlington Hts CLEVELAND OH 44145 216871.89 60005 312 593-8997 KTI MICROELECTRONICS DIV OF BEI modulation monitors, chart recorders, RF ELECTRONICS PO BOX 1222 CAMPBELL generators CA 95008 408 371 5880 filters for telephone signals LOWEL-LIGHT MANUFACTURING INC 421 W 54TH ST NEW YORK NY K KVC INC 770 LEXINGTON AVE NEW YORK 10019 212 245-67 NY 10021 212 752-3690 TV studio & location lights; light stands, portable video camera shoulder braces; light accessories camera mounts, heads, tripods, equipment KAHN COMMUNICATIONS INC 74 NO rental services, video repair services, studio LPB INC 520 LINCOLN HIGHWAY FRAZEF MAIN ST FREEPORT NY design VS PA 19355 215 644-11 11520 516 379-8800 audio consoles, equip; control room AM stereo exciter, passive equalizers and furniture; carrier current AM broadcast equip. filters VS AM/ FM transmitters; audio processors See ad pg. 170-refer to rep/dist section KAITRONICS CORP 870 MAHLER RD L BURLINGAME CA 94010 415 697-9102 LRC ELECTRONICS INC 901 SOUTH AVE SMPTE time code equip, remote broadcast HORSEHEADS NY 14845 607 739-38 control systems, tape evaluators VS LAIRD TELEMEDIA INC 2125 S WEST cable TV connectors; CATV distribution TEMPLE SALT LAKE CITY UT passives; cable tools & accessories KALART VICTOR CORP HULTENIUS ST 84115 801 487-6251 L-W INTERNATIONAL AVE PLAINVILLE CT 06062 203 747-1663 character generators; multiplex equip; slide 6416 VARIEL large screen TV projectors; TV image generators VS WOODLAND HILLS CA projectors; time/date 348-86 impresser; optical multiplexer; TV film chain; See ad pg. 38 91364 213 TV movie projector, film editing equip, TV film chain projectors flickerless LAMPKIN LABORATORIES INC 8400 NINTH accessories VS L-W PHOTO INC 15451 CABRITO RD VAN AVE NW BRADENTON FL NUYS CA 348-86 KALLMAN ASSOCIATES INC 33505 813 746-4175 91406 213 2525 HYPERION AVE LOS ANGELES CA signal generators; frequency meters; 16 mm film chain projectors 90027 213 660-4900 modulation monitors; deviation meters; TV alpha-numeric character generators, color signal conditioner monitors VS LEBOW LABS INC 56 CHESTNUT HILL M KAMAN SCIENCES CORP (BROADCAST AVE BOSTON MA 02135 617 566-1125 COMPUTER SERVICES) 1500 GARDEN OF radio and TV studio deisgn and installation THE GODS RD COLORADO SPRINGS CO VS 80907 303 598-5880 3M COMPANY MAGNETIC AUDIO/VIDEO radio and TV computer business services LEITCH VIDEO LTD UNIT PRODUCTS DIV ST PAUL MN VS 46 705 PROGRESS AVE SCARBOROUGH 55117 612 733-4 1 full line of recording & video, KANSAS STATE NETWORK INC tape for audio magnetic film 833 N MAIN ST WICHITA KS VS following the description of a company's 67203 316 265-5631 products stands for Verified Source. Com- 3M COMPANY MINCOM DIV 3M CENTER time base correctors; character generators; panies so Identified have filed appropriate BLDG 223-5E ST PAUL MN information systems for CATV literature with BM/E indicating the products 55101 612 7334' video color encoders videotape evaluator, KAPPA NETWORKS INC 165 ROOSEVELT mentioned are In production and available. color drop-out compensator, processing AVE CARTERET NJ 07008 201 541-1600 To identify all manufacturers of a particular video amplifier, bridging delay lines, networks video switchers, product class or category consult the Instant video image enhancer, special effects KAREX INC 1282 LAWRENCE STATION RD Source Locator pages 56-73. SUNNYVALE CO 94088 408 734-3341 continued on page

90 SEPTEMBER, 197 www.americanradiohistory.com quarter track configurations, has proof tape handling gentle fail safe differential brakes and enough for half mil tape. And accepts 81% inch reels. It also still new electronics, clean to 60 dB comes with three motors -but S/N at all speeds. then, that's touching on the new. If you're looking for a real time, The New. A brushless d.c. servo reel recorder with old name reli- drive with a crystal oscillator con- ability but designed for today's trol reference so accurate it vir- demands, you'll find it in the tually eliminates program timing Telex/Magnecord series 1400. (2Iex/Magnecord series 1400 errors. New, three speeds: 3% - For complete infor- -toadcast quality recorder/re- 7% - 15 ips. New catenary head mation please roducer. An old name that spells block for straight tape loading, write: 'liability. A new design for to- the convenience of one hand ay's state of the art. cueing and the bi-level illumina- The Old. Telex/Magnecord tion of push button controls. roducts are still made in the New DTL logic controls 6A so parts and service are eliminate EMI and ways available. The series 1400 provide fast, still built on a solid die cast spill aiminum main frame for reli- ale operation around the cock. It's still available

I full, half gad

PRODUCTS OF SOUND RESEARCH TELEX® COMMUNICATIONS INC 9600 ALDRICH AVE SO. MINNEAPOLIS, MINN 55420 U S A Europe: 22, rue de la Legion-d'Honneur, 93200 St. Denis, France Canada: Telak Electronics, Ltd., Scarborough, Ontario Circle 171 on Reader Service Card

www.americanradiohistory.com Wherryour signal is your bread and butler

your Iransmit1er hod better be McMartin.

Your transmitter is a staple of your operation. Choosing the right one is important. An excessive purchase price means wasted capital. Poor reliability means unnecessary maintenance costs and possible lost revenues due to off-air failures. L McMartin transmitters "nourish" your station with high performance, high reliability and maintenance support, and

low purchase price. Ni A wide range of models are available for all AM and FM power levels. Your McMartin representative can give you the complete story. For the name of your representative, call or write McMartin.

McMartin Industries, Inc. 4500 South 76th Street Omaha, Nebraska 68127 Phone (402) 331-2000 Telex 4t

Circle 172 on Reader Service Card www.americanradiohistory.com speakers; racks, cabinets, console dropout compensators, standards converters, )PE SOURCE '76 assemblies; audio tape cartriges; complete framestone synchronizers, time base studio installations VS correctors, repositioners, compressors, A/D See ad pg. Cover 3 converters VS NJ McCurdy 223 N Saddle River Rd Saddle ator, character generators, distribution River 07458 201 327-0750 MICROFLECT CO INC 3575 25TH ST SE Piers, automated switchers VS McGRAW-EDISON CO EDISON SALEM OR 97302 503 363-9267 _se I pg. 59-refer to rep/dist section ELECTRONICS DIV GRENIER FIELD billboard-type passive repeaters; ' Mincom 688 Wasatch Dr Fremont MANCHESTER 669-0940 tower-mounted reflectors, towers, 94536 415 791-8344 NH 03103 .... 603 audio line amplifiers, audio attenuators & transmission lines and connectors; facility Mincom 15932 Shady Grove Rd potentiometers; intercom systems; RF turnkey installation VS Gaithersburg 20760 301 948-0460 attenuators; field calibration meters, IM Mincom 4101 Oak Park Dr SE Grand , meters; RF watt meters; AF & RF SUITE Rapids 49508 616 455-5529 distortion MICROPROBE ELECTRONICS INC signal generators; audio level meters VS 3201 875 NO MICHIGAN AVE CHICAGO IL -ni Mincom L Wilson 3M Center Bldg 60611 312 787-3900 223-5E St Paul 55101 612 733-7603 MCI INC 4007 NE 6TH AVE FORT automatic sequencers, complete systems VS iu Mincom 2121 Santa Anna.Ave Dallas LAUDERDALE FL 33334 305 566-2853 85! 75228 214 327-7311 full line audio consoles, slide attenuators, MICROTIME INC 1280 BLUE HILLS AVE reel CORP open recorder/players, synchronizer, BLOOMFIELD CT 06002 203 242-4242 3i1KIASYNC/MOVIOLA phasemaker, VU and peak meters; magnetic DTP3RIVERTON AVE N HOLLYWOOD CA time base correctors; velocity error film recording accessories VS iC 213 877-2791 See ad pg. 60 correctors, automation video control ,pa I liting equip; field & studio tape equipment, image enhancers, skew o ers McKAY DYMEK PO BOX 2100 POMONA correctors VS CA 91766 714 623-1236 See ads pgs. 109, 124-refer to rep/dist section -10HICIA-TECH ELECTRONIC CO INC high fidelity AM receiver, shielded loop Network of over 40 dealer/distributers throughout VA ) INTH AVE NEW YORK NY antenna, audio monitors the USA and Canada. Contact main office for name .):: 212 586-7240 of local outlet.

1 rn gftic film recorder/players; synchronizers MC MARTIN INDUSTRIES INC 4500 S 76TH Calif D.J. Sofie 7119 Pomelo Drive Canoga

lit 7: ir.gnetic film recorders & motion picture OMAHA NE 68127 402 331-2000 Park 91307 213 884-6269 Conn R. McLean/N. Owens, Jr. 1280 Blue 1 luip audio & TV consoles; audio mixers; line amplifiers; audio limiters; pa amplifiers; Hills Ave. Bloomfield 06002 . 612 242-4242 CO DIV DIXLGAVOX CATV turntables, arms, intercom systems; RF Minn W. Baird 6317 Aldrich Ave. S. DR MANLIUS NY -ON 4IRGROUNDS amplifiers; AM & FM transmitters; exciters; Minneapolis 55423 612 861-6228 ,. j c 315 682-9105 remote control equip; remote pickup & STL; NY P. Dubs 385 Salem Ct. Hauppauge ,8-IIT trunk & distribution amplifiers, SCA equip.; FM antennas; antenna monitors; 11787 516 234-5252 tau rtrution passives, connectors, terminals, frequency monitors; signal generators; MICRO-TRAK CORP 620 RACE ST lacetEsories, converters VS modulation monitors; EBS two-tone equip VS See ad pg. to section HOLYOKE MA 01040 413 536-3551 1011111C0AVOX VIDEO SYSTEMS 92-refer rep/dist Ark T. Butler PO Box 119 Limestone turntables, arms, pickups; pre-amps, mixers, I AktiMAGNAVOX WAY FT WAYNE IN equalizers; monitor speakers; cartridge tape ...8( 219 482-4411 72646 501 428-5257 Calif J. Schneider PO Box 725 Diablo racks; studio furniture, antenna heater Janbd & portable video color cameras; video 94528 415 820-3811 controls VS oibsrors, educational TV receivers VS See ad pg. 120-refer to rep/dist section Calif B. Switzer 9025 Maza Circle IJ3IEONI ELECTRONICS INC Fountain Valley 92708 714 842-8422 MICROTRAN CO INC PO BOX 236 VALLEY 1.1M30TONEHURST COURT NJ NORTHVALE Fl R. Henry 14018 W Parsley Dr STREAM NY 11582 516 561-6050 .;. 8. 201 767-7250 Madeira Beach 33708 813 391-8065 bulk tape erasers; tape spot erasers, head t imeras; telecines; switchers; NY J. Grey 4 F Underhill Road Middletown and tape degaussers, telephone pick-up a ;A-miters; consoles; intercoms; video audio 10940 914 342-5113 coils VS Whigs& distribution amplifiers VS Neb D. Jones 3524 S 104th St Omaha MICROVISION SYSTEMS 800 NO EL 00 &CON! COMMUNICATION SYSTEM LTD 68124 402 397-2866 CAMION ut mite ground stations, transmitters, Ohio E. Huber Rte 3 Rhinehart Rd REAL #2 SAN MATEO CA -piers VS Bellville 44813 419 886-4445 94401 415 348-1344 Wis D. Kelly 2253 S Oneida Green video tape editor controller VS Op 8CONI INSTRUMENTS DIV Bay 54304 414 497-1193 Om Adation monitors; TV sideband analyzers, MICROWAVE ASSOCIATES INC 63 THIRD Ilvirerum analyzers, video test generators; MEDIATECH 824 BUSSE HIGHWAY AVE BURLINGTON MA iiitnatic TV monitors, digital synchronizers, PARKRIDGE IL 60068 312 644-1314 01803 617 272-3000 pteblis test sets; sweep generators; other TV tape-to-film transfer microwave TV equip for STL; spurs; b81 .tear; frequency counters; audio & RF intercity, ENG, systems; air-to-ground MEMOREX CORP 1200 MEMOREX DR Iltriegrl generators; distortion meters VS microwave TV relay systems, antennas VS et,Ied pg 119-refer to rep/dist section SANTA CLARA CA 95052 408 987-1169 See ad pg. 39-refer to rep/dist. section audiotape; audiotape accessories; videotape Calif MA 850A Stewert Dr Sunnyvale 1101ACO INC 6114 N VIDEO SYSTEMS for all video record formats; videotape 94086 206 232-3550 PA OWIT ST PHILADELPHIA accessories VS Ga MA 175 W Wieuca Rd, N.E. Atlanta la215 849-9500 30342 404 252-4311 '4n;lb1.9routing switchers VS MERLIN ENGINEERING WORKS 1880 EMBAR CADERO PALO ALTO CA Mass MA South Avenue Burlington ATI ELECTRONICS INC PO BOX 661 94303 415 329-0198 01803 617 272-3000 alLBURNE TX 76031 817 645-9163 rebuilt VTR machines, band color systems, Mo MA 8800 Blue Ridge Blvd Kansas City ^kxrte pick-up & aural STL equip; audio air systems, TBCs, VTRs, video monitors VS 64138 816 763-5395 1 nifiers; remote control telemetry & Texas MA 4398 Shady Bend Dr Dallas ib itnatic digital transmitter logging MICMIX AUDIO PRODUCTS INC 75234 214 239-2893 illument; RF amplifiers; SCA equipment; 9990 MONROE DR SUITE 222 DALLAS TX Ilnit to line amplifiers; audio 75220 214 352-3811 MICROWAVE ASSOCIATES INC (LAND tc mressor/limiters VS reverberation units VS MOBILE DIV) PO BOX 8010 SUNNYVALE ad fl ed pg. 132 See pg. 172-refer to rep/dist section CA 94088 408 736-9330 MICRO COMMUNICATIONS INC RFD 3 UHF/VHF transmitter combiners, receiver iTlhASUSHITA (SEE PANASONIC) GRENIER FIELD MANCHESTER NH combiners, isolators, circulators; RF filters, loads VS lq Y ATHEY PRINTED PRODUCTS LTD. (See 03103 603 624-4351 1/10IE'EVISION equipment, EQUIPMENT ASSOCIATES) RF transmitting/receiving MICROWAVE POWER DEVICES INC equipment, diplexers, ENG microwave ADAMS COURT PLAINVIEW NY .03 AEU_ CORPORATION OF AMERICA control systems, RF waveguides, remote 11803 516 433-1400 110-1W COMMERCIAL AVE MOONACHIE NJ filters, RF loads, FM and TV antennas, microwave power amplifiers; RF amplifiers; .. "4 201 933-4200 transmission lines and components VS 1,9 to tape, video tape FM, TV transmitters VS MICRO CONSULTANTS INC PO BOX 10057 BA.: dEE LABORATORIES 5151 WISCONSIN MID-STATE COMMUNICATIONS INC PALO ALTO CA 94303 415 321-0832 kW '1E NW WASHINGTON DC 40 NORTH 7TH AVE BEECH GROVE IN

, 16 202 244-2050 46107 317 786-9537 `:.-P ::, Jrnatic digital logger, digital remote frequency measurement equip; signal level -KIP :rol equip VS following the description of a company's meters; installer's meters products stands for Verified Source. Com- Val 'CURDY RADIO INDUSTRIES panies so identified have filed appropriate MILLER-STEPHENSON CHEMICAL CO INC 'MI 1 CLINTON ST BUFFALO NY literature with BM/E indicating the products PO BOX 628 DANBURY CT 06 716 854-6700 mentioned are in production and available. 06810 203 743-4447 ten. fp consoles; audio distribution, line & degreaser; head cleaner; contact cleaner VS r I amplifiers; audio controls & attenuators; To identify all manufacturers of a particular lio processing units; intercom systems; product class or category consult the Instant MINNEAPOLIS MAGNETICS INC i ch panels; turntables, pickup arms; Source Locator pages 56-73. 8125 PLEASANT AVE SOUTH phone coupling equipment; monitor continued on page 94

SMApTEMBER, 1976-BM/E 93 www.americanradiohistory.com 14607 716 412-5320 THE SOURCE '76 digital delay system with special effects VS following the description of a corn products stands for Verified Source. MYERS-OAK COMMUNICATIONS panies so identified have filed appro MINNEAPOLIS MN 55420 612 884-7393 CONSTRUCTION CORP CRYSTAL LAKE IL literature with BM/E indicating the pr magnetic tape recorder heads; replacements 60014 815 459-5000 mentioned are in production and avail for leading recorder brands VS CATV system construction To identify all manufacturers of a MINOLTA CORP 101 WILLIAM DR RAMSEY part product class or category consult the I NJ 07446 201 825-4000 Source Locator pages 56-73. TV crt color analyzer; light measurement equip; color temperature meter, lenses, N photo equipment VS tape editors; test tapes; recorder care MODULAR AUDIO PRODUCTS INC accessories for audio & video machines; 1385 LAKELAND AVE BOHEMIA NY NAGRA MAGNETIC RECORDERS INC VTR head cleaners 11716 516 567-9620 19 W 44TH ST NEW YORK NY NORVER CO INC 7300 N CRESCENT modular audio components; 10036 212 661-8066 modular line PENNSAUKEN NJ amplifiers, equalizers, compressor/limiters; miniature reel-to-reel audio/cine recorders; BLVD 08110 609 665- preamplifiers; power supplies, etc VS lovelier mics, tape reels, tape timers VS SCA receiver See ad pg. 173-refer to rep/dist section NAKAMICHI RESEARCH (USA) INC MODTEC 220 WESTBURY AVE CARLE PLACE NY N.O.V.A. CORP BOX 2121 CANOGA PA (See BROADCAST ELECTRONICS) 11514 516 333-5440 CA 91306 213 888-5 audio pre-amps, power amps, stereo MOHAWK WIRE & CABLE CORP videotape cleaner attachment for VTR pickups, headphones, microphones, 9 MOHAWK DR LEOMINSTER MA head degaussers, NURAD INC 2165 DRUID PARK DR 01453 speakers, cassette tape, 617 537-9961 audio cassette records/players VS BALTIMORE, MD 21211 301 462-1 broadcast color camera cables, connectors, quad polarized antennas for remote-TV accessories, CATV cables, connectors VS NASCO TELEVISION SYSTEMS broadcasts; microwave equip, satellite earth 947 JANESVILLE AVE FORT ATKINSON WI stations, transmission line and connectors MOLE-RICHARDSON CO 937 N 53538 414 563-2446 See ad pg. 122-refer to rep/dist section SYCAMORE AVE HOLLYWOOD CA video distribution equip; special effects units 90038 213 851-0111 TV, photo lighting equip; microphone booms, NATIONAL ELECTROLAB LTD perambulators; mechanical special effects 1536 COLUMBIA ST NO VANCOUVER BC equip VS V7J 1A4 604 985-0511 audio monitor, RF receivers, comm & MONROE ELECTRONICS INC 100 HOUSEL monitors, AM, RF amplifiers VS AVE LYNDONVILLE NY See ad pg. 146 14098 716 765-2254 0 unattended phone answering devices, tone NATIONAL VIDEO CORP 840 W signal generators, detectors, timers, GLENOAKS BLVD GLENDALE CA multi-frequency receivers VS 91202 213 244-3115 OAK COMMUNICATIONS GROUP OAK See ad pg. 97 helical video cassette players; editors for INDUSTRIES INC CRYSTAL LAKE IL

VTR cassette players, editor controller 60014 815 459-500 1 MOOG MUSIC INC PO BOX 131 converters; pay-TV devices; CATV amplifiers WILLIAMSVILLE NY 14221 312 675-2000 NATIONWIDE ELECTRONIC SYSTEMS INC music synthesizers 1536 BRANDY PARKWAY STREAMWOOD O'CONNOR ENGINEERING MOSELEY ASSOCIATES INC IL 60103 316 289-8820 LABORATORIES INC 100 KALMUS DR 111 CASTILIAN DR GOLETA CA automation equipment, sequencers, controllers, memory units, auto loggers, COSTA MESA CA 92626 714 979-3911 I ' 93017 805 968-9621 camera tripods and heads V ALC and AGC amplifiers, FM audio limiter, complete systems; telephone coupling digital remote control systems; automatic equipment; VU meters; STL & remote ODETICS 1859 S MANCHESTER AVE loggers; microwave systems for remote pickups, SCA equipment; time systems, ANAHEIM CA 92802 714 750-211 pickup & STLs; RF amplifiers; SCA equip; frequency monitors and counters, voltmeters, time elapse VTR V 1 status & alarm indicators, RF modulators, multimeters, phase meters, status and alarm OK MACHINE AND TOOL CORP FM processors VS indicators VS See ad pg. 53 3455 CONNER ST BRONX NY NEC AMERICA INC (NIPPON ELECTRIC 10475 212 994-61111' MOUNTAIN WEST ALARM 4215 N 16TH S CO LTD) 277 PARK wire-wrapping equip; connector pressers; PHOENIX AZ 85016 602 263-8831 AVE NEW YORK NY 10017 212 758-1666 pliers; wire cutters; strippers burglar & fire alarm systems audio amplifiers, controls, processing OLEAN CASE CORP 322 HOUGHTON AVE' MOXON INC SRC DIVISION equipment; consoles; intercoms; OLEAN NY 14760 716372.0717' 2222 MICHELSON DR IRVINE CA microphones; patch panels; TV cameras; vulcanized fiber & wood covered case for 714 833-2000 92664 telecine equip; switchers; video tape audio & video equipment; film shipping CCTV cameras; surveillance TV cameras; recorders; time base correctors; monitors, mobile vans; airborne microwave TV character generators; video distribution OLESEN 1535 IVAR AVE HOLLYWOOD Ck .- systems systems; transmitter (AM, FM, TV); 90028 213 461.4614 antennas; microwave equip VS lighting hardware, lighting equipment, MSI 4788 S ST SALT TELEVISION STATE See ad pg. 143 dimmer controls; rental services 1 ' LAKE CITY UT 84107 801 262-8475 character genrators; weather, news, stock NEFF ELECTRONICS INC ONAN DIV ONAN CORP 1400 73RD AVE .; data systems; titling equip; data casting for 11511 MARYLAND AVE BELTSVILLE MD NE MINNEAPOLIS MN CATV VS 20705 301 937-4776 55432 612 574-5011 audio amplifiers; audio equip; tape encoders; emergency stand-by power generators V MU-DEL ELECTRONICS INC 2426 LINDEN splicers; EBS generator/detector EBS LA SILVER SPRING MD receiver OPAMP LABS INC 1033 N SYCAMORE 20910 301 587-6087 AVE LOS ANGELES CA RF amplifiers; RF attenuators & NEUMADE PRODUCTS CORP PO BOX 568 90036 213 934-35ti 4. multicouplers; band-pass filters VS SCARSDALE NY 10583 914 725-4900 full line production consoles; portable storage & filing cabinets for tape reels, mixers; operational amplifiers; audio MULTIPLIER INDUSTRIES CORP 464 SO cassettes, rewinder; film storage equipment components; basic amplifier kits f 10TH AVE MT VERNON NY VS 10550 914 699-0990 OPTEK 5526 E LA PALMA AVE ANAHEIM' vehicle, aerial bucket, lineman safety equip NEVE RUPERT INC BERKSHIRE IND CA 92807 714 528-23: / PARK BETHEL CT 06801 203 744-6230 bulk erasers, demodulators, head MULTI-TRACK MAGNETICS INC full line audio consoles, audio amplifiers, degaussers I 2 RUCKMAN RD CLOSTER NJ disc cutting systems VS 07624 201 768-5037 OPTIMA ENCLOSURES DIV equipment rental services, studio design, NORTH AMERICAN PHILIPS CORP (SEE SCIENTIFIC-ATLANTA 2166 MOUNTAIN videotape/film recording and transfer AKG DIV & PHILIPS AUDIO VIDEO INDUSTRIAL BLVD TUCKER GA services VS SYSTEMS) 30084 ., 404 939.63 racks, equip enclosures MULTRONICS INC 9005 RED BRANCH RD NORTHEAST BROADCAST LAB INC BOX COLUMBIA MD 21045 301 730-1122 1176 15 CHARLES ST SOUTH GLENS ORANGE COUNTY ELECTRONICS CORP equalizers and filters, passive and active; FALLS NY 12801 518 293-2121 LTD 1125 EMPRESS ST WINNEPEG RF switchers, phasing network, RF inductors radio facility turnkey installations VS MANITOBA R3E 3H1 204 775.81 monitor amplifiers and speakers, audio See ad pg. 146 VS NORTRONICS CO INC RECORDER CARE DIV 8101 TENTH AVE N MINNEAPOLIS MN switchers, audio processors, pre amps, equalizers and filters MXR PROFESSIONAL PRODUCTS GROUP 55428 612 545-0401 277 N GORDON ST ROCHESTER NY magnetic tape recorder heads; tape erasers; continued on page

94 SEPTEMBER, 1976- www.americanradiohistory.com F KNOW, EXACTLY WHAT THEY WANT IN A 50 KW AM filANSMITTER. SO DOES CONTIH ELECTRONICS!

CIE!car channel millers on test. WHAS Radio 84 has Economy, develop ed that magic mance . . . all factors prograncoming formula considered the 317C for whic :11 many strive. is the best for us . . . there but few achieve so is no question that Continental successifully. A unique is the best buy and in actual blend o f contemporary music, farm operation, the transmitter

reports, live sports coverage and an exceeds all specifications . . ." award - winning news team has And what about customer made this station a major force service? "Excellent! Conti- in the LouisvilleL market. nental is never too busy to At the other end of the \ go out of their way to help prograrn line there's a piece of \*-Z.-'=-----..:----- \\ you. I can't recommend equipm ent designed to match their back-up service too it 11' 14* ;401 the moi v litw:',' ly highly!" lem and dynamic u 'Ns, 4\ 1\ i o, vt N ..9.4.:* ,,, .. We congratulate WHAS on Person ility/MOR format of 44 ikl N1- WHAS their entire operation. They . the Continental Elec- tonics 317C, 50.000 watt AM know exactly what they want in a 41 transmi . . so does Continental! tter! Featuring high reliability and efficier ' 50 KW AM transmitter small si ze and the Loud Sound of 125% posit For information peak hi Indling audio, it is quality throughout on the 317C, write It' 5 no accident that it's in service at Continental Electronics

WHAS , . Mr. William Hunter, Director of Engil Mfg. Co. Box 270879 ing at theth station says, "We visited the varinii, Dallas, Texas 75227 of majc)r manufacturers and watched ti

Circle 173 t Header Service Card www.americanradiohistory.com OTARI CORPORATION 981 INDUSTRIAL portable quartz lighting system for CCTV THE SOURCE RD SAN CARLOA CA '76 PACIFIC 94070 415 593-1648 RECORDERS & ENGINEERING reel-to-reel audio tape recorder/reproducers; CORP 11100 ROSELLE ST SAN DIEGO Ck 714 tape duplicators VS 92121 453-32 headphone, microphone amplifiers; audio ORBAN/BROADCAST 271 COLUMBIA AVE switcher; compressor/limiter; digital timing SAN FRANCISCO CA systems; custom audio consoles; preamps: 94133 415 441-0666 line & distribution amplifiers FM modulation controller VS See ad pg. 102 See ad pg. 128-refer to rep/dist section P PAILLARD INC 1900 LOWER ROAD ORBAN/PARASOUND 680 BEACH ST LINDEN NJ 07036 201 381-56 SUITE 411 SAN FRANCISCO CA 16 mm cameras/projectors 94109 415 673-4544 PACE WIRE AND CABLE CORP compressor/limiters/FM filters, equalizers, 3590 OCEANSIDE RD OCEANSIDE NY PAKO CORP 6300 OLSON MEMORIAL HWY reverb units, stereo synthesizers VS 11572 516 678-2275 MINNEAPOLIS MN See ad pg. 98-refer to rep/dist section wire and cable VS 55410 612 540.63 film processers OREGON MAGNETICS PO BOX 13374 PACKAGED LIGHTING SERVICES INC PO PORTLAND OR 97213 503 233-9295 BOX 285 WALDEN NY PALMER (WA) FILMS INC 611 HOWARD V-lock adaptor for helical scan VTRs VS 12586 914 778-3515 ST SAN FRANCISCO CA 94105 415 986-59 motion picture film projectors; color TV film recorders, video/film transfers and lab services PANASONIC VIDEO SYSTEMS ONE PANASONIC WAY SECAUCUS NJ 07094 201 348-70 complete line of cameras color and mono (portable and studio); videotape recorders; What's so special tape duplicators; studio equipment including telecines; audio recorders/players, amplifier! turntables

PANDUIT CORP 17301 RIDGELAND AVE TINLEY PARK IL 60417 312 532-181 about Beaucart nylon cable ties, accessories; plastic wiring duct; terminals

PAPERWORK SYSTEMS INC 2000 "A" ST PO BOX 38 BELLINGHAM WA 98225 206 733-85 stereo machines. automated business systems for radio and TV 1

PENTAGON INDUSTRIES INC 4751 N OLCOTT CHICAGO IL 60656 312 867.921 U.S. Patent Spring high-speed tape duplicators Pending loaded PERMADYNE ELECTRONICS CORP 2929 P hold down SOUTHPORT AVE CHICAGO IL rollers 60667 312 525-55 SCA receiver PETRA COMMUNICATIONS PO BOX 562 Spherical DUBOIS PA 15801 814 371-9219 head-conical TV production equipment rental and post adjusting production services, studio design for radio seat and TV screws Tapered PHASECOM CORP 13130 S YUKON AVE HAWTHORNE CA 90250 213 973.41 cartridge cable TV headend signal processors; RF guide modulators & demodulators; CATV information systems 1 Cart PHELPS DODGE COMMUNICATIONS CO locating RTE 79 MARLBORO NJ spring 07746 201 462-16 FM antennas; trasmission lines; RF filters, coaxial cable PHILADELPHIA RESINS CORP 20 COMMERCE DR MONTGOMERYVILLE PA 18936 215 855-841. non-metallic antenna guys 1 Everything. See ad pg. 130 PHILIPS AUDIO VIDEO SYSTEMS CORP Don't let anybody tell you that all stereo justing screws for which patents have been 91 McKEE DR MAHWAH NJ broadcast cart machines are the same. applied provide uniform, positive contact 07430 201 529.38 It just isn't so. Because we've built into immune to movement from external forces. AUDIO & VIDEO DIVS Beaucart stereo units proprietary Little things? Sure! There are a hundred audio amplifiers, audio consoles & mixers; our & make Beau- headsets, intercom systems; microphones cartridge locating features which enhance little things that full-featured microphone accessories; tape stereo phasing from cartridge to cartridge cart the stereo machine for you. recorder/players, tape duplicators; turntable under long term, continuous service con- Let us tell you more. Write or call today column loudspeakers; CCTV cameras; videc ditions. for further details and pricing. You'll be cassette recorder/players; mobile TV vans Take a look at the photo. No other ma- glad you did! BROADCAST EQUIP DIV chine incorporates these features. Our studio & field TV color cameras, telecine chains spring-loaded rollers ensure repeatable See ad pg. 30 location of each cart's left corner post. Calif PAVSC 3760 Cahuenga Blvd North allows each Hollywood 91604 213 766-8 The tapered cartridge guide UMC Fla PAVSC 1277 Sun Circle Eau Gallia roller and feed cart to squarely contact the BEAUCART DIVISION 22-35 305 254.1 smoothly into the machine. Our locating Ga PAVSC 3300 Northeast Expressway spring positions the cart against the right- UMC ELECTRONICS CO. Atlanta Suite 1G 30341 404 458-0 III PAVSC 7530 Frontage Rd Norelco House guide every time, and our unique ad- 460 Sackett Point Rd North Haven. CT 06473 (203) 288-7731 hand Skokie 60076 312 679-8 Circle 174 on Reader Service Card

96 SEPTEMBER, 1976-BI www.americanradiohistory.com PAVSC 412 Roy Court Keller Q-TV/TELESYNC 33 W 60TH ST NEW 76248 817 379-5484 VS following the description of a company's YORK NY 10023 212 765-4200 products stands for Verified Source. Com- TV prompter system VS PS TEST & MEASURING panies so identified have filed appropriate lUMENTS INC 400 CROSSWAY PARK literature with BM/E indicating the products 'OODBURY NY 11797 ... 516 921-8880 mentioned are in production and available. QUAD EIGHT ELECTRONICS CORP generators, encoders; sync color video 11929 VOSE ST N HOLLYWOOD CA & pattern generators; pulse To identify all manufacturers of a particular 91605 213 764-1516 level meter, ators; video decoder, product class or category consult the Instant audio preamps, line & power amplifiers, RF generators; Dr calibrator, Source Locator pages 56-73. equalizers; audio controls; audio consoles & ators; frequency counters, audio mixers; reverberation units; dB meters; noise ,ators; video test equip; multi-meters, gates; audio digital delay unit; compressors; iscopes VS cartridge equip VS attenuators; tone oscillators; cabinets, racks TIC REEL CORP OF AMERICA 640 S See ad pg. 145-refer to rep/dist section 1ERCIAL AVE CARLSTADT NJ ELECTRONICS INC PO BOX 215 ST QUAKER 201 933-9125 QS! SYSTEMS INC 993 WATERTOWN HUNLOCK CREEK PA W NEWTON 617 969-7118 or video & audio tape VS MA 02165 18621 717 256-3477 video sequential switcher, TV cameras quartz crystals iTOID CORP 42-61 24TH ST LONG (mono); time date generator, portable sync 1D CITY NY 11101 212 786-6200 generator, video source identifier VS continued on page 98 I cable; direct burial coaxial cables; .,,re sealant coaxial cables ._INE CORP 1241 RAND RD DES

- ES IL 60016 312 298-5300 reels -VIAC INSTRUMENTS INC HILADELPHIA AVE SILVER SPRING .910 301 589-3125 a monitors; field strength meters; a impedance bridges; video & RF tnels, intermodulation meters, mic distortion meters VS pg. 16-refer to rep/dist section 141-OPTICS INC PO BOX 266 L -J REMOTE IIEW VILLAGE PA 215 539-5300 CONTROL c, control systems for TV camera RECEIVER - FORMED LINE PRODUCTS CO SWITCHER RI 91129 CLEVELAND OH 216 461-5200 ,Ira tower accessories; preformed metal aic deadends, lashings, guywires, etc

'7ELIN INC PO BOX 131 HIGHTSTOWN i20 609 448-2800 & rigid dission line; transmission line :1:tors; microwave antennas, reflectors,

DT RECOVERY SYSTEMS PO BOX 25 i:STER NY 14481 716 382-3223 ac regeneration system; silver recovery; mal recovery; pollution abatement

:3-ECTION SYSTEMS INC 517 VAN &) =N AVE PASSAIC NJ 201 473-0180 ;.jection systems (Amphicon) ECHNOLOGY INC 1200 GRAND .1AL AVE GLENDALE CA 213 245-8424 )ptical printers for super 8 & 16mm lecial effects; flickerless projector MODEL 3000 R-10

E DYNAMICS MFG CORP PO BOX DLCHESTER IL 62326 309 776-4111 ) broadcast originating consoles & VU meters, reverb units, mixers, DOES YOUR COMPUTER KNOW WHEN A le public address systems; PA BALL GAME IS GOING INTO OVERTIME? 'beakers VS If not, you need a system as shown above to permit your t,MID INDUSTRIES INC 2602 W 7.NTO BLVD PHOENIX AZ engineer to take control from his home or office. Switch 602 269-2319 a telephone line and/or micro- ,11 cable; cable connectors VS programs from dial-up wave or radio link. Write for complete data: MONROE ELECTRONICS, INC.

100 HOUSEL AVENUE, LYNDONVILLE, NEW YORK 14098

AANUFACTURING CO NEW BERLIN Area Code 716 765-2254 7855 717 966-1017 stringing blocks & aerial construction for coaxial cable ELECTRONIC PRODUCTS (DIV OF 1568 N SIERRA VISTA FRESNO CA 3 209 251-4213 ) turntables; pre-amplifiers; audio CIS; consoles; tape decks; tape Circle 175 on Reader Service Card

'EMBER, 1976-BM/E 97 www.americanradiohistory.com 680 BIZZELL DR LEXINGTON KY THE SOURCE '76 40504 606 259-0434 VS following the description of a corn stereo phase enchancers; tape cartridge products stands for Verified Source. players/recorders VS so identified have filed app QUANTUM AUDIO LABS 1905 RIVERSIDE See ad pg. 148 literatureliterature with BM/E indicating the p DR GLENDALE CA 91201 213 841-0970 mentioned are in production and aye 124 E 124TH ST audio consoles, mixers, stereo and quad VS RAVEN SCREEN CORP See ad pg. 144 NEW YORK NY 10035 212 534-8408 To identify all manufacturers of a p front & rear projection screens product class or category consult the Source Locator pages 56-73. QUICK-SET INC 3650 WOODHEAD DR RAYCHEM CORP 300 CONSTITUTION DR NORTHBROOK IL 60062 312 498-0700 MENLO PARK CA 94025 415 329-3333 tripods; stands; mounts; for TV, dollies ENG Thermofit sleeving & covers; waterproofing camera braces VS products for cable plant; molded parts See ad pg. 170 switchers; SCA equip; AM, FM & TV RAYTHEON DATA SYSTEMS antennas; antenna towers & lighting; 1415 PROVIDENCE TNPK NORWOOD MA transmission line; antenna monitors, 02062 617 762-6700 modulation monitors, field intensity meters, microwave communications equip audio generators; video picture monitors; R phase meters, sideband analyzers, RF watt RCA AMERICAN COMMUNICATIONS INC meters, mobile TV vans 201 CENTENNIAL AVE PISCATAWAY NJ See ad pg. 54-55-refer to rep/dist section RANK PRECISION IND INC 411 JARVIS 08854 201 885-4162 Ala RCA Office Park Bldg #.10 Office Park Circle Birmingham 35223 205 871.1 AVE DES PLAINES IL 60018 . 312 297-7720 satellite transmission services VS video camera lenses; color correctors, Calif RCA 330 Primrose Rd Suite RCA CORP BROADCAST SYSTEMS 305 Burlingame 94013 415343.2 encoders, film telecine equipment, image FRONT & COOPER ST BLDG 2-5 CAMDEN RCA Suite 531 6363 Sunset Blvd Hollyym enhancers, Varotol Lens repair service VS NJ 08102 609 963-8000 90028 ' 213 See ad pg. 175 line, power, distribution amplifiers; 461-9 audio Colo RCA 2695 Alcott St Suite 231-S radio automation equip; consoles, mixers; 8220 N AUSTIN MORTON Denver 80211 303 4331 RADIANT CORP automatic tape cartridge recorder/players, GROVE IL 60053 312 966-4200 Fla RCA 2747 Art Museum Dr Suite audio & video; headsets; intercom systems; front projection screen 5 Jacksonville 32207 904 398-4 microphones; patch panels; audio tape Fla RCA 3900 RCA Blvd Palm Beach Gardena recorder/players; tape erasers; turntables, RADIO MECHANICAL STRUCTURES INC Bldg 110 West Palm Beach arms, pickups; loudspeakers; video 2600 N LONGVIEW ST KILGORE TX 33410 305 622-1i automation equip; video color & mono 75662 214 984-0555 Ga RCA 3395 NE Expressway 404 634.6 cameras, studio & portable; ENG systems; satellite earth ground terminals III RCA Gateway H Bldg Suite 1400 120 S camera heads, mounts, dollies; quad VTRs Riverside Plaza Chicago character generators, chroma keyers, RAMKO RESEARCH INC 11355 "A" 60606 312 454-1 color encoders; FOLSOM BLVD RANCHO CORDOVA CA drop-out compensators, Ind RCA 2511 East 46th St Suite telecine chains; production & routing 95670 916 635-3500 001 Indianapolis 48205 317 546-4 pulse distribution amplifiers, distribution amplifiers, preamplifiers, mic/line switchers, Kan RCA 5750 West 95th St Suite III amplifiers, sync generators, amplifiiers, monitor amplifiers; ALC and AGC processing Overland Park 66207 913 642-3 amplifiers, compressor/limiters, AM & FM; special effect generators; videotape Mass RCA 40 William St Wellesley picture cameras, mixers, LED VU meters; controllers; recorder/players; motion 02181 617 237-6 AM, FM & TV cartridge & cassette loaders; consoles VS tripods, projectors, Mich RCA 24333 Southfield Rd Southfield modulators, demodulators, See ads pgs. 44-45--refer to rep/dist section transmitters; 48075 313 359-51 diplexers, exciters; remote control, remote RAPID-Q/EDCO PRODUCTS INC pickup & STL links; RF amplifiers, loads, continued on page.'

Orban/Parasound solves the Stereo Tape Cartridge Dilemma Just use one track of your existing stereo cart We also make a proven Spring Reverb with an machines-or, ideally, mono machines. Then, add the excellent reputation for quality and reliability. Also, our Orban/Parasound Stereo Synthesizer to the output Parametric Equalizer combines reasonable cost with bus of your bank of cart players. unprecedented versatility for production work, line and The result is a highly seductive pseudo- remote equalization, "air- sound" frequency contouring, stereophonic effect for stereo listeners. And listeners and dozens of other applications. And our Dynamic with mono receivers receive perfect reproduction of Sibilance Controller lets you equalize your announce the original mono tracks-without any phase mike and production work for stand-out impact cancellation or quality loss. without excessive "ess" sounds. You can also use the Stereo Synthesizer for Four rather interesting products from converting announce mikes, mono discs, and mono Orban /Parasound - the price/performance leader. agency spots to pseudo -stereo. Try it to generate a For further information, contact: stereo effect from your mono remotes or network feeds. The results will delight your listeners! Orbon/paratound At $327, the Orban/Parasound Stereo 680 Beach Street, San Francisco, CA 94109. (415) 673-4544 Synthesizer pays for itself in reduced cart machine or your local Orban/Parasound erofessional maintenance and in increased sponsor satisfaction products distributor. with the air qyalitv of his spots.

Circle 176 on Reader Service Card 98 SEPTEMBER, 197 www.americanradiohistory.com DiGiulio Speaks Out: There is no room for electronic bias 1 on your balance sheet! You must compare long-term equipment and operating costs ENG vs. newsfilm. ippears that television station Rental rates provide a more realistic Interestingly, the rental figure for ENG igement, especially at the network picture of the long-term operational costs cameras is disproportionately high when has an inherent electronic bias. involved in ENG camera and recording compared to their original purchase all, television is basically an equipment vs. a self-contained single- price. It simply reflects their much higher 'onic medium, and the use of system newsfilm camera. Because - if service and maintenance costs, and the y news crews has always made equipment rental houses are to stay in cost of those very expensive Plumbicon tgement staffs of many TV stations business - rental pricing policies must tubes that need to be replaced every 6 E ineasy (as if dealing with some reflect true equipment costs, accounting months or so - all of which must be body'). for original purchase price, proper realistically accounted for by television ey even apply a double standard in service and maintenance, as well as the stations as well. ay they treat film compared to ENG life expectancy of expensive, critical As expected, during the past year ..-ns of broadcast performance. Their system components that must be there was a great deal of re-assessment r tnds for virtual perfection in replaced periodically. on the part of many television stations - 'film cameras are in glaring contrast A good, quality ENG camera rents for especially in the smaller markets - tr 'It terrible results they seem to anywhere from $500 to $800 per day; who had taken their first tenuous steps o der acceptable for broadcast and a quality 3/4' tape recorder rents for into ENG. There has also been a ti :.days when it comes to ENG. (You approximately $125 per day. On the other concomitant upsurge of activity in the easily recognize most ENG stories hand, a self-contained CP-16R/A single- purchase of newsfilm. And domestic considerable degradation in system newsfilm outfit rents for up to sales of CP-16 cameras to television and color quality that they $125 per day! stations have soared to an all-time 'est, even on network What a vast difference in true record high. programs.) equipment costs! Its time you and your station 'rift inherent electronic bias - Just think how much film-and- management also did some ouscdouble standard - is most processing you could buy for re-assessing. iftgerOUS, though, when cost- $500-$800 per day! Before you take the plunge and it:ounting an ENG operation commit $200,000 or more per erus a newsfilm operation. quality ENG outfit (complete with '..Je of the major cost-accounting van and microwave transmitting 'vents that is put forth in favor of equipment) - do consider what a asserts, again and again, that no reliable and efficient, completely how expensive setting up an self-contained CP-16R/A newsfilm 1G operation is (compared to camera can accomplish at about i;film), ENG will eventually pay for one twentieth of the cost! because no relatively costly film - Remember, there is no room for processing is required, whereas electronic bias on your balance sheet! )tape is both cheaper and, 16mm newsfilm is the mainstay of a ,osedly, totally re-useable! rational news gathering operation. iis argument is pure hokum! 34' tape seed cheaper than 16mm newsfilm. hat is the only thing that's cheap This is it ENG! one in a series of ) highlight the economic 'open letters' to the TV news industry- :urdity projected by proponents to station owners, Ed DiCiulio. President of Cinema Products Corp., at the managers, chief )tal ENG, let's compare "Film & Video" conference in Copenhagen, Denmark. 7ipment rental engineers, news rates. directors, controllers and accountants - dealing with the role of ENG in relation to film in a news gathering operation. If you have any question concerning the issues raised in these 'open letters: please feel free to call me directly at Cinema Products.

Technology in The service Of Creativity 2037 Granville Avenue. Los Angeles, California 90025 Telephone (213) 478-0711 Telex 69-1339 Cable. Cinedevco

Circle 177 on Reader Service Card CEMBER, 1976-BM/E 99 www.americanradiohistory.com Ilk aft II is

tti ""

www.americanradiohistory.com Not just four new products. One new ENG system dally integrated to broadcast needs. icy Sony introduces the first fully integrated When used with the Sony BVE-500 editing * .NG system designed to meet broadcast console, BIDIREX assures fast accurate 3quirements. The components of this system editing that is fully frame servoed. fl.) -present a new high in heterodyne picture 3. BVE-500 Broadcaster Editing Console E uality as well as a practical approach to diting and airing ENG tapes. Each unit is The BVE-500 provides a fully automatic kg' esigned to work independently or as part of a editing control for tape-to-tape editing between

1.1 Fstem to insure quality, reliability and true a pair of BVU-200's. The BVE-500 is a three eni conomy. register editor with digital readouts for both BVU-100 Portable Broadcast U-Matic® source and record material. Changes in the pb recorder edit-in and edit-out point can be programmed at a touch of a button. This highly accurate W` he new BVU-100 is the latest addition to the editing system provides both preview and !mous U-Matic format and is fully inter- frame trimming at a fraction of the cost of a nangeable with any of the previous portable computer editor. And of course all edits are -Matic models. An additional longitudinal frame servoed to insure clean picture quality tack, provided for recording SMPTE code on without loss of timing information. r battery-operated CG-100 SMPTE generator,

i offered as an option. The new BVU-100 gives 4. BVT-1000 Digital Time Base Corrector 2u extra dollar savings in addition to'extra (not shown) uality. Because it can be directly coupled to a Sony's reputation for engineering reliability is 13C, you can go directly to air or microwave combined with transparent picture quality and nk, avoiding the cost of an additional play- a wide 4H window to bring broadcasters a ack machine in the remote van. new standard of performance in time base . BVU-200 Broadcast Editing U-Matic correction. Line by line correction, velocity his recorder allows for high speed accurate compensation, drop-out compensation, and Siting utilizing either control track or SMPTE full processing with standard advance sync, are ddress systems. It incorporates BIDIREXT7 all standard features of the BVT-1000. specially engineered system to move tape For more information on this new ENG i faster or slower speeds in either direction. system, write to Sony Broadcast. Sony Broadcast Sony Corporation of America, 9 West 57 Street, New York, New York 10019

Sonye is a registered trademark of Sony Corporation of America.

Circle 17$ on Reader Service Card for a demonstration Circle 179 on Reader Service Card for literature

www.americanradiohistory.com HOLLAND AVE LANCASTER PA REK-O-KUT (See ORK) 17604 717 397-7661 THE SOURCE '76 REPCO PRODUCTS 7400 STATE RD tubes, power tubes, display TV camera PHILADELPHIA PA 19136 215 tubes; blank audio tapes; batteries, test CATV closures, for above & below gro Calif RCA 2700 W Olive Ave Burbank instruments; digital display devices; CCTV 91505 213 849-6741 cameras; receiving tubes; semi-conductors. RE-PLAY VIDEO CARTRIDGE SERVI DC RCA 1800 "K" St NW Suite 810 TV picture tubes, instrument cathode-ray 328 MERRITT AVE PITTSBURGH PA 20006 703 558-4166 tubes VS 15227 412 88 Fl RCA 8675 NW 53rd St Suite 207 reloaded quad VTR cartridges Miami 33166 305 592-4140 RCA GLOBAL COMMUNICATIONS INC Wash RCA 1818 Westlake Ave N Suite 222 60 BROAD ST NEW YORK NY REVOX CORP 155 MICHAEL DR SYO Seattle 98109 206 285-2375 10004 212 363-3986 NY 11791 516 3 Minn RCA 4601 Excelsior Blvd Suite satellite communications service VS open-reel tape recorder/player; FM tuner 307 Minneapolis 55416 .... 612 920.6395 preamps; power amps; reel decks, port Mo RCA 7701 Noah's Ark Suite RCA SERVICE CO (RCA DIV) DEPT 1614 audio consoles & mixers 340 St Charles 63301 314 946-7755 BLDG 203-3 COMMERCIAL PRODUCT See ad pg 121-refer to rep/dist section NC RCA 6320 Fairview Rd Suite SALES CAMDEN NJ 08101 609 779-5892 Calif Revox PO Box 2229 Poluca Lake Stat 104 Charlotte 28201 704 366-0626 monitors (b&w/color), stands; FM-TV master 91602 213 8 NJ RCA Front & Cooper Sts Bldg 2-2 Camden antennas; automatic dial telephone systems CO 9830 SAN 08102 609 963-8000 VS REYNOLDS/LETERON RD PACOIMA CA NY RCA 1133 Ave of the Americas 3rd Fir FERNANDO R-COLUMBIA PRODUCT CO 2008 ST 213 899-* New York 10036 ...... 212 598-5900 91331 JOHNS AVE HIGHLAND PARK IL TV titlers Ohio RCA 11430 Hamilton Ave Cincinnati 60035 312 432-7915 45231 513 825-1550 self-powered electrostatic headphone REX RHEOSTATS CO INC 149 BABYLON Pa RCA 761 N Washington Rd McMurray TPKE ROOSEVELT NY 1291 15317 412 941-5570 RECORDING SUPPLY CORP RAND 11575 516 379-11 Tex RCA 3409 Executive Ctr Dr Suite RD DES PLAINS IL 60016 312 297-0955 dummy loads to 2kW 213 Austin 78731 512 345-2224 empty reels, magnetic tape, leader tape VS Tex RCA 8700 Stemmons Freeway Dallas RF SYSTEMS INC 155 KING ST 75247 214 638-6200 RECORTEC INC 777 PALOMAR AVE COHASSET MA 02025 617 3834: Va RCA 1901 North Moore St Arlington SUNNYVALE CA 94086 408 735-8821 CATV antennas; yagis for channels 2-13, 22209 703 558-4166 videotape recorders, video tape evaluators; log periodic antennas; microwave equip, video tape conditioners; quad upgrade kits; translators, microwave antennas, satellite RCA/COMMUNITY TELEVISION SYSTEMS videotape editors; audio tape cartridges, earth stations (EIE) 7355 FULTON AVE N HOLLYWOOD tape cassettes, audio cassette duplicator, CA 91605 213 764-2411 loader, feeder VS RHG ELECTRONICS LABORATORY INC distribution amplifiers, headend signal See ads pgs 126-127-refer to rep/dist section 161 EAST INDUSTRY COURT DEER PAR1 processors, modulators & demodulators; NY 11729 516 242-1 microwave for CATV VS REDDING RADIO BOX 344 FAIRFIELD CT microwave relay links including portable 06430 203 579-0284 systems, RF amplifiers RCA DIST & SPECIAL PRODUCTS DIV microphone station identification plates; RICHMOND HILL LABORATORIES LTD CHERRY HILL OFFICES BLDG 20G-2 phone loop induction pickups CAMDEN NJ 08101 609 963-8000 1240 ELLESMERE RD SCARBOROUGH camera tubes, receiving tubes, power tubes, REGMO DATA CORP 6992 OXFORD ST ONTARIO CANADA 291-r SK replacements, semiconductors, MINNEAPOLIS MN 55426 612 925-3800 M1 P 2X4 416 replacement parts VS time-code controlled sequencer; A/V tape automation equip; chroma keyers; video See ad pg 139 video production & head cleaner & anti-static disc spray processing amplifiers; RCA ELECTRO OPTICS & DEVICES NEW (Kontakt Chem.) VS continued on page 1

YOU'RE A BROADCAST THE MOST PROFESSIONAL . . . ADVANCED STEREO CONSOLE IS ALSO THE SIMPLEST

MEW

1411111.1...... 411, A '` 16

CETEC SERIES 10 We build the Series 10 to be an e tension of the announcer. 10 ster( mic or line input channels. Outp \\t4-4444441i,,,,,,"s channels for both stereo and auc tion. Built in cueing amplifier ar 04'4* speaker muting. And many mo . - We supply the finest professional au acts from major equipment features than we can tell you her manufacturers Write or call for a full description We manufacture the Multi-sync, Multilimiter, and Digitimer the most advanced Stereo Consc We design complete broadcast audio facilities from the wall in on the market: Series 10. WE'RE PACIFIC RECORDERS AND ENGINEERING From Cetec Audio A Division of Cetec Corporation PACIFIC RECORDERS AND ENGINEERING CORPORATION 13035 Saticoy Street, No. HollywoCk 11100 ROSELLE ST., SAN DIEGO, CALIFORNIA 92121 CA 91605 Phone: (213) 875 -190 TELEPHONE (714) 453-3255 TELEX 695008 Circlo 180 on Roeder Service Cord Circle 181 on Reader Service Carl 102 SEPTEMBER, 1976-1 www.americanradiohistory.com ecause, in a sense, it is like a car. All of the major electrical output, tension, and other properties. And omponents are assembled to get you from point A to because we manufacture the entire package--from oint B. With efficiency and precision. For example, the tape to packaging-we can assure you of the highest onstant-force, foam pressure pad assures unvarying possible quality control. ead to tape contact over the life of the cartridge. The The Audiopak A-2 by Capitol Broadcast Cartridge. )ositive, non-slip brake mechanism locks the tape, The car you drive probably isn't as reliable as the A-2. ather than the hub, assuring accurate cueing and tim- AUDIOPAK" A PROFESSIONAL PRODUCT MANUFACTURED lg And, to assure you of premium performance, each BY THE SAME PEOPLE THAT MAKE AUDIOTAPE,'AUDIOFILMm art is individually tested-100%-for wow and flutter AUDIODISCS AND THE LEARNING TAPE"' BY CAPITOL."

40.3 BY CAPITOL STREET CALIFORNIA 90028 -&4/66tOCI, CAPITOL MAGNETIC PRODUCTS A. DIVISION OF CAPITOL CORM IN 150 NORTH VIM [CA ANGELES Circle 185 on Reader Service Card

www.americanradiohistory.com audio preamps, line & power amplifiers; audio pre-amps, IFB/system, intercom THE SOURCE '76 audio attenuators; distribution amps, audio systems routing switchers; all foregoing in modular Sas ad pg. 157 form routing switchers; pulse & distribution RUPERT NEVE INC (See NEVE) sync generators; special effects amplifiers; ROHDEA SCHWARZ SALES CO (USA) RUSSCO ELECTRONICS MFG INC generators VS INC 14 GLORIA LANE FAIRFIELD NJ 1070 BROOKHAVEN DR CLOVIS CA 93612 209 RICHMOND SOUND DESIGN LTD 1234 W 07006 201 575-0750 audio consoles; mixers; audio 6TH AVE VANCOUVER BC demodulators; field intensity meters for AM, compact amplifiers; monitors; turntables; spea V6H 1A5 604 736-7207 FM TV; RF power meter; rubidium frequency standards; video test signal generators; VIT audio amplifiers, swtichers, equalizers, filters, RUST CORP (SEE DATA LOGIC/RUST) mixers, stereo and audio for TV VS distortion meter; waveform monitor, monitor receivers; sideband analyzers; TV RYAN F B MFG CO PO BOX 451 RIVERS ASSOCIATES INC BOX 58 translators, video monitors (Barco); CHARITON IA 50049 515 774 - LEOMINSTER MA 01453 617 537-4821 antennas, AM, FM and TV, microwave, underground cable plows intercom systems, tone detection devices, transmission lines and connectors VS audio silence alarm, SCA equipment, program subcarrier, EBS two tone systems ROHN MFG DIV UNARCO IND INC PO VS BOX 2000 PEORIA IL 61601 309 697-4400 antenna tower builders & erectors; S RMS ELECTRONICS 50 ANTIN PLACE microwave reflectors VS BRONX NY 10462 212 892-6700 coaxial cable passives, connectors, hardware ROSCO LABORATORIES INC 36 BUSH SADELCO INC 299 PARK AVE AVE PORT CHESTER NY ROBINS BROADCAST & SOUND WEEHAWKEN NJ 07087 201 914 937-1300 866 EQUIPMENT CORP (FORMERLY 10573 CATV fixtures, diffusion test equip FAIRCHILD) 75 AUSTIN BLVD COMMACK lighting, heads, stands, material, gels and filters, set design, lens 12 SAN1 NY 11725 516 543-5200 SAKI MAGNETICS INC 1649 ST VS complete line audio amplifiers, controls; ALC cleaning tissue MONICA CA 90404 213451 audio and video magnetic tape heads, nel and AGC amplifiers, compressor/limiters AM ROSS BROADCAST PRODUCTS INC and refurbished and FM, equalizers and filters, passive; (GLENTRONIX) 160 DUNCAN MILL ROAD audio consoles, tape cleaners, bulk erasers, DON MILLS ON M3B 1Z5 416 444-8497 SANSUI ELECTRONICS 55-11 QUEENS audio connectors VS video production switchers VS BLVD WOODSIDE NY See ad pg. 163-refer to rep/dist section See ad pg. 134 11377 212719.f- RODELCO ELECTRONICS CORP 365A RTS SYSTEMS 4167 FAIR AVE NO 4-channel & stereo encoder; turntableir COMAC RD DEER PARK NY HOLLYWOOD CA 91602 213 980-0511 preamps; power amps; reverb units 11729 516 643-5110 TV & FM translators VS SANYO ELECTRIC INC 1200 W AR BLVD COMPTON CA 90220 2131 ROGER MAYER ELECTRONICS INC 225 E VS following the description of a company's audio tape recorders; helical VTRs, vk 57TH ST NEW YORK NY products stands for Verified Source. Com- cassette players; TV cameras color & 10022 212-486-1544 panies so identified have filed appropriate noise gates, stereo limiter, input literature with BM/E indicating the products mentioned are in production and available. SAWYER INDUSTRIES INC 5649 PE transformers, line transformers, inductors, ARCADIA CA 91006 213 peak program meter VS To identify all manufacturers of a particular CATV stand-by power supplies; product class or category consult the Instant uninterruptible power supplies; surge ROH CORPORATION 107 TECHNOLOGY protectors PARK NORCROSS GA Source Locator pages 56-73. 30071 404 449-0873 continued on

For mono, stereo ... AM, FM, TV

MODEL 300 MODEL 350 MASTER CART The most popular NAB car- For use in stereo machines For the modern stereo broad-

tridge . . . performance and with inadequate tape guidance. caster satisfied with nothing price make it the mono broad- The precision is provided by less than the ultimate in per- caster's first choice. adjusting the cartridge. formance.

AND, for extended play, there's Fidelipac's Models 600 and 1200. For details, contact your Fidelipac Distributor or FIDELIPC 109 Gaither Drive Mt. Laurel, NJ 08057 (609) 235.3511 8 Trademark

Circle 184 on Reeder Service Card 104 SEPTEMBER, 1978 www.americanradiohistory.com CVS Introduces the

til First Digital Family of Time Base Correctors.

ell (V/ 501 MOW ,

111

5.11

CVS 520 VS 510 High Performance "Low Cost" digital TBC "Super" TBC ii'

VS capabilities The CVS 504B NTSC and CVS 503 CVS 510 is designed to satisfy giesired by broadcasters. Pal/Secam digital TBC's have the requirements of the non-broad- rard segmented (Quads, IVC become the standard of the telecast facility where the technical etc.) and non-segmented vision industry worldwide. The needs are great but the budget U-matic, etc.) video signals proven dependability and capability small. Standard heterodyne color t, trie base corrected utilizing a of these TBC's have and will and B/W video signals are time 4-it4 times subcarrier, PCM continue to contribute substantially base corrected utilizing a 6 bit, frit' sampling technique. to the advancement of this industry. 4 times subcarrier digital sampling lOrthe fications include: technique. ri ,inal-to-noise greater than 60 db Specifications include: herential Phase less than 2° 1 h window of correction ,erential gain less than 2% The CVS "TBC buying guide" Signal-to-noise 48 db irlard Features include: is a great success. Do you have Differential phase 3° yet? If not, your free copy contact Differential gain 3% le-by-line velocity correction CVS. Well help you i all color modes in evaluating the Standard Features include: somatic Direct/Heterodyne real world of Built-in Drop out Compensator olor switching digital time base Built-in Proc-amp silt-in Drop out compensator correction. Operation with V-lock, line lock 'ilt-in adjustable Proc-amp and non-standard sync VTR's eo level meter Dub-up to quad capability :jital outputs on rear panel for Front panel video level controls uture expansion capability Small size, low power all size, low power requirements. equirements The CVS 510 can do much to add :VS 520 provides full flexi- dependability and quality in with high quality performance performance in any Cable TV, ssary in any studio facility. Pay TV or Closed Circuit TV facility.

Consolidated Video Systems 3300 Edward Avenue CVS Santa Clara, California 95050 (408) 247-2050 Telex: 35-2028

Original and largest manufacturer of digital TBC's.

Circle 182 on Reader Service Card for more information Circle 183 on Reader Service Card for a demonstration MBER, 1976 -BMIE 105 www.americanradiohistory.com .41 1 1

THE SOURCE '76

SAWYER'S HOLLYWOOD 6820 SANTA Transmitters MONICA BLVD HOLLYWOOD CA 90038 213 488.- mobile van construction; video and film equipment rental service

SC ELECTRONICS 530 FIFTH AVE NW NEW BRIGHTON Love Our MN 55112 612 633- See Audiotronics See ad pg: 123

SCALA RADIO 1970 REPUBLIC AVE SA Modulimiter. LEANDRO CA 94577 415 351- broadcast antennas

SCHAFER ELECTRONICS CORP 75 CASTILIAN DR GOLETA CA 93017 805 968 - radio automation equip; multicart machine automatic logging equip, open-reel tape The Competition machines. See Cetec Broadcast Group for Field Offices SCHAFER INTERNATIONAL 5801 SOLEDAD MTN RD LA JOLLA CA Will Hate Your 92037 714 454- SCHNEIDER CORP OF AMERICA 154 L( ST HACKENSACK NJ 07601 201 343. video camera lenses; motion picture came New Sound. lenses; lens accessories SCIENTIFIC-ATLANTA INC 3845 PLEASANTDALE RD ATLANTA GA 30340 404 449 - The BL-40 Modulimiter is a unique automatic AM broadcast CATV TV systems; headend modulators, limiter, which will maximize modern transmitter performance. demodulators, signal processors; satellite ground stations; microwave antennas; Whatever your format-hard rock to classical, Modulimiter will transmission line, CATV trunk, distribution increase transmitter efficiency and extend coverage. amplifiers; CATV antennas; cabinets, rack

The BL-40's patented electro-optical attenuator provides smooth, SCIENTIFIC RADIO SYSTEMS INC unobtrusive, true RMS limiting. An ultra fast F.E.T. peak limiting 367 ORCHARD ST ROCHESTER NY section assures absolute protection from unwanted over modula- 14606 716 458 - FM transmitters, RF receivers, comm & tion without peak clipping. Attack time is essentially instantaneous. monitors

Three separate meters indicate RMS LIMITING, PEAK LIMITING SCOTT HH INC 111 POWDERMILL RD AND OUTPUT LEVEL, simultaneously. All critical adjustments MAYNARD MA 01754 617897- loudspeakers; digital FM tuner are behind a front security panel. A "phase optimizer" maintains most favorable signal polarity permitting up to 125% positive SCOTT INSTRUMENTS LABORATORIES 533 MAIN ST ACTON MA modulation without negative undershoot. " Its the limit " in 01720 617 263 - todays broadcast limiters. UREI quality of course sound level meters Available from your UREI dealer. L J SCULLY MANUFACTURING CORP 138 HURD AVE BRIDGEPORT CT 06604 203 368- tape deck reproducers, disc cutting equipment SCULLY RECORDING INSTRUMENTS (AUDIO ELECTRONICS DIV OF DICTAPHONE CORP) 475 ELLIS ST MOUNTAIN VIEW CA 94043 415968. tape recorders/players (reel-to-reel), port studio; playback equip for automation; tirn code for loggers; loggers; underground ca locators; time code generator; repair sere'

SENCORE INC 3200 SENCORE DR SIM FALLS SD 57107 605 3391 field intensity meters; sweep generators ti VHF, UFH, FM, & chroma; field effect meters; dual-trace oscilloscopes; AM/FM stereo analyzer; power supplies; CATV to equipment, voltmeters, multimeters, oscilloscopes SENNHEISER ELECTRONIC CORP 10V 37TH ST NEW YORK NY 10018 212 239 ' microphones, headsets, impedence bridg Uri speakers, portable mixer lop% SEOUERRA CO 143-11 ARCHER AVE 11922 Valerio Street JAMAICA NY 11435 212 291 broadcast monitor; FM intensity meters, No. Hollywood, California 91605 (213) 764-1500 modulation monitors

F xclusive r,xporI anent Gothan Export Corporation, New York SESCOM INC 12931 BUDLONG AVE GARDENA CA 90247 213 77( audio amplifiers; audio equalizers SHARP ELECTRONICS CORP Circle 186 on Reader Service Card

I Of, SEPTEMBER, 197 www.americanradiohistory.com f

(. fSTONE PLACE PARAMUS NJ 201 265-5600 VS following the description of a company's E 'tS; tape decks; video cameras; products stands for Verified Source. Com- the monitors; sync generators; waveform panies so identified have filed appropriate :f fs; phase shifters VS literature with BM/E indicating the products mentioned are in production and available. ) DEN (See HITACHI SCHIBADEN) To a Drum ) .10N CO INC 144 ROGERS ST identify all manufacturers of particular Bass 3 !RIDGE MA product class or category consult the Instant 617 491-8700 Source Locator pages 56-73. .Dnsoles, special effects generators, inerators, video & audio distribution Mike... ,y ors, sequential video switchers, 49 FAIRFIELD RD HAVERTOWN PA jar generators, mic mixer, gen lock 19083 215 446-4799 ror FM transmitters, exciters, modulators, SCA equipment, RF amplifiers VS 3f EY LABS INC RT 302 RAYMOND ME 1 207 655-3841 fist antennas; transmission line; filter, SOLL INC 401 E 74 ST NEW YORK NY aP "For recording a bass drum, e 1Es; coaxial switches, power combiners 10021 212 988-0290 emergency power systems, mobile van there is no better mike than the Tr R BROTHERS INC 222 HARTREY construction; RF control systems, radio and 1T-EANSTON IL 60204 312 328-9000 TV studio design; facility turnkey installations Beyer M101. scones, microphone accessories; audio r& preamplifiers; feedback controllers; It's ability to accept high levels SONEX INTERNATIONAL 4001 WALAMEDA ickup cartridges; audio level and very flat response make ;., otrrs; p.a. systems; column speakers; BLVD BURBANK CA 91505 .. 213 843-7484 it e'l insoles; compressor/limiters; reverb chroma keyers; luminance keyers VS the best mike available." VS 4--dg. 83-refer to rep/dist section SONTEC CORPORATION 10120 MARBLE Claude Hill COURT COCKEYSVILLE MD 1136S CORP 186 WOOD AVE S ISELIN Audio Consultants, Inc. 21030 301 628-2282 .84:1 201 494-1000 Nashville, Tenn. audio line amplifiers, preamps; audio ern') surge voltage lightning protectors limiter /compressors; equalizers dirt amplifiers & powers supplies "The Beyer FFPR INTERNATIONAL INC 369 SAN SONY BROADCAST 9 W M 101 N is the LOA DR SUITE 365 NEWPORT BEACH 57TH ST NEW YORK NY 10019 212 371-5800 finest bass 714 644-6857 ENG systems for racks cameras, color monitors, VTRs helical and helical cassette, videotape editing drum 9N ELECTRIC CO 853 DUNBEE AVE controller, time coder generators, time base microphone NL 60120 312 697-8820 correctors VS ck digital voltmeters & multimeters; See ad pgs 100, 101 on the :opes VS CA Sony 700 West Artesia Blvd Compton 7STEMS 330 W 45TH ST NEW 90220 213 635-6322 market IY 10036 212 581-3597 IL Sony 6801 West Jarvis Street Niles today for :sfe; limiter, AGC amplifier VS 60648 312 792-3600 NY Sony 47-47 Van Dam Long Island City the money. 131E EDUCATION SYSTEMS 11101 212 361-0014 .E1MNROE AVE ROCHESTER NY I feel it is 716 586-2020 SONY CORP OF AMERICA 9 W 57TH ST essential for V projectors VS NEW YORK NY 10019 212 371-5800 video cassettes, video cassette any good INSTRUMENTATION 5340 ALLA recorder/players; videotape recorder/players; ANGELES CA audio preamps & power amplifiers; quad studio..." 213 822-3061 matrix equip; headsets; microphones; audio Emil Handke isr nsity meters, test equip VS tape; auido cars & cassettes; tape Nashville Studio accessories; audio tape recorders; NIC CORP 705 HAVERFORD RD turntables; phono cartridges; video cameras; Systems N AWR PA 19010 215 525-3700 video switchers; sync generators; special Nashville, Tenn. i A broadcast transmitters; exciters; effect generators; video tape equip slie editing protectors, antenna monitors VS VS There can be 11110iNTENNA CO 10330 NE MARX ST no better RTIAND OR 97220 503 253-2000 SOUND TECHNOLOGY 1400 DELL AVE CAMPBELL CA 95008 408 378-6540 -, antennas; antenna preamplifiers; endorsement audio generators; RF generators; harmonic ,Intowers & accessories; wired cable; we can ask ors VS distortion meters, intermodulation meters VS See ad pg. 24-refer to rep/dist section than that inFN CORP LIGHTING CONTROL SPARTA ELECTRONICS CORP I from the pros. ST WOODSIDE NY 5851 FLORIN-PERKINS RD SACRAMENTO 212 274-7222 CA 92828 916 383-5353 Join the Dghts, light systems, solid state AM & FM transmitters, audio amplifiers, os, light accessories VS audio cartridges, audio consoles & mixers; Beyer BIT . Po BOX 310 STATION tape cartridge recorder/players; tape professionals M EONT MONTREAL QUEBEC erasers; turntables; arms, monitor speakers; 38 514 728-2285 diplexers, exciters; remote control equip; and use the cle generators and readers VS SCA equip; FM antennas, antenna monitors; modulation monitors; status & alarm Beyer M101. WICTOR CORP LAKE & COLFAX indicators VS 'P1FFITH IN 46319 219 838-6136 See Cetec Broadcast Group for Field Offices. See also rep/dist. section insystems, heads, stands, fixtures, 8i1 material VS SPECTRA SONICS 770 WALL AVE OGDEN UT 84404 801 392-7531 ASTER DIV JACOBSEN MFG CO audio consoles; full line of audio amplifiers, 'WASH AVE MINNEAPOLIS MN slide attenuators, pan controls, tone 612 529-9566 Another limg generators, speakers, compressor/limiters; plows for cable burial variable equalizers, electronic crossover innovation t',k'LECTRIC filters; audio attenuators & accessories VS 1717 BUSSE RD ELK See ad pg. 148 from qE VILLAGE IL Calif 6430 Sunset Blvd Suite 1117 312 439-2800 lower supplies; CATV transformers Hollywood 90028 213 461-4321 EBEYER DYNAMIC

ONE INTERNATIONAL INC SPECTRA-VISION CORP 1528 BELFIELD the microphone people. ONVOY CT SAN AVE PHILADELPHIA PA DIEGO CA 155 MICHAEL 714 279-7872 19141 215 457-6500 DRIVE -ave communications equip videotape editing equip; videotape SYOSSET, NEW YORK 11791 TELEPHONE: (516) 364-1900 ELECTRONICS LABORATORIES continued on page 108 Circle 187 on Reader Service Card

EMBER, 1976-BM/E 107 www.americanradiohistory.com SUN VALLEY CA 91352 213 7 THE SOURCE '76 Sony tape recorders; microphones; tap tape accessories

FIDELIPAC® VS following the description of a company's SWITCHCRAFT 5555 NO ELSTON products stands for Verified Source. Com- CHICAGO IL 60630 312 7 panies so identified have filed appropriate audio plugs, jacks, connectors; cable ACCESSORIES literature with BM/E indicating the products assemblies, tester, tape deck compar & CARTRIDGES mentioned are in production and available. mixers To identify all manufacturers of a particular SWR INC PO BOX 215 GOFFSTOWN product class or category consult the Instant 03045 603 Source Locator pages 56-73. transmission line accessories; RF equip CART-A-ROUND service; TV antennas CARTRIDGE SYSTA-MATICS INC 510 N SHERIDAN STORAGE RACKS TULSA OK 74115 918 Each WR-25 Modular duplication; origination equip & equip service automatic video cassette player system, Rack holds 25 Type A VS automation controllers; time base corr Cartridges ... eight SPECTROLAB SOUND POWER SYSTEMS can be mounted on 12500 GLADSTONE AVE SYLMAR CA our Mobile Carousel SYSTEMS CONCEPTS INC 80 W TRU 91342 213 365-4611 AVE SALT LAKE CITY UT Base to make up solar power systems, the MR-200. remote power systems 84115 801 VS WR-25 $15.00 character generators MR-200 $145.95 SPHERE ELECTRONICS 20201 A PRAIRIE SYSTEMS ENGINEERING CO INC PO AVE CHATSWORTH CA 49224 ATLANTA GA 30359 404 93 91311 213 349-4747 audio consoles, video consoles, modular audio consoles, mixers, program amplifiers, amplifiers, equalizers, audio distribution equalizers VS amplifiers, power supplies

SPINDLER & SAUPPE INC 13034 SATICOY SYSTEMS MARKETING CORP 1005 W ST N HOLLYWOOD CA WASHINGTON ST BLOOMINGTON IL 91605 213 764-1800 61710 309 8 slide projection system for film chains VS radio automation equip; controllers, mu machines, tape cartridge players; logg SPIN PHYSICS INC 11633 SORRENTO time/weather announcers; digital clock VALLEY RD SAN DIEGO CA systems; audio amplifiers; audio gene 92121 714 453-5410 TABLE TOP line amplifiers, ALC and AGC amplifiers, videotape recorder/players; replacement CARTRIDGE RACK sequencers; single and dual cartridge heads for VTR's Model TR-96 holds players, cart recorders 96 Type A cartridges. STAINLESS INC THIRD STREET N WALES Model TR-48 holds 48. PA 19454 215 699-4871 SYSTEMS WIRE AND CABLE INC 3 TR-96 $73.85 AM antennas; antenna towers; tower 30TH ST PHOENIX AZ VS 85040 602 TR-48 $38.55 lighting, tower accessories CATV distribution and drop equipment STANCIL-HOFFMAN CORP 921 N HIGHLAND AVE HOLLYWOOD CA SYSTRON-DONNER CORP 10 SYSTR 90038 213 464-7461 DR CONCORD CA 94610 415 87 magnetic tape recorder/players; digital frequency counters; digital clocks; swee clocks; digital time recorders for magnetic generators; spectrum analyzers; RF watt recorders meters; time code generators; waveform analyzers, audio generators; digital STANDARD ELECTRIC TIME 89 LOGAN ST multimeters; analog/keyboard compute SPRINGFIELD MA power supplies; frequency synthesizers; 01101 413 732-1141 microwave equipment electronic master clocks STUDIO ON AIR LIGHT STANDARD TAPE LABORATORY INC brilliant red lettering on jet black background 2081 EDISON AVE SAN LEANDRO CA can be seen even in the brightest ambient 94577 415 635-3805 light conditions. $29.95 audio test tapes, test magnetic film VS STANTON MAGNETICS TERMINAL DR PLAINVIEW NY 11803 516 681-0200 CART-E-RASE stereo phono pickups; headphones; DEMAGNETIZER turntables, arms; turntable preamp/equalizer See ad pg. 65-refer to rep/dist section VS T can be used for erasing cartridges, reel-to-reel STOREEL CORP PO BOX 80523 ATLANTA tape, film sound GA 30341 404 458-3280 TABER MFG & ENG CO 2081 EDISON Al stripping, etc, $34.50 cabinets & racks for equip; storage racks & SAN LEANDRO CA enclosures for tape reels VS 94577 415 6354 VTR & audior STRAND CENTURY INC 20 BUSHES LANE replacement audio heads for erasers, ELMWOOD PARK NJ 07407 201 791-7000 recorder/players; test tapes; tape TV lighting equip; lighting controls, stands, See ad pg. 171 filters, accessories Calif Taber 1227 N Vine Hollywood 90038 213 464 WILLI STUDER AMERICA INC JOEL TALL-see ELPA MARKETING ALIGNMENT 1819 BROADWAY NASHVILLE TN 37203 615 329-9576 PROBLEM? TANDBERG OF AMERICA INC LABRIOI audio tape recorder/players; audio consoles; COURT ARMONK NY 10504 .. 914273(` Keep your cart equipment condenser microphones open reel recorder/players, cassette in perfect working order with: See ad pg. 169 recorder/players, speakers, amplifiers 350 STA Alignment Cartridge $38.50 See ad pg. STUDIO FILM EXCHANGE 366 W 46TH ST 86-refer to rep/dist section 350 STF Wow and Flutter Cartridge $24.50 NEW YORK NY 10036 212 265-3740 TAPE-ATHON CORP 502 S ISIS AVE 350 STO Cue Test Cartridge $35.00 film stock at reduced prices VS INGLEWOOD CA 90301 213 778 Head Insertion Gage $3.35 tape recorders/players (reel-to-reel); Height Gage $14.95 STUDIO TAPE EXCHANGE 630 9TH AVE playback equip for automation, loggers, Right Angle Zenith Gage $21.75 NEW YORK NY 10036 212 977-9330 mono & stereo music service your Fidelipac Distributor or reconditioned video tape Contact TAPECASTER TCM INC PO BOX 662 SUMMIT SYSTEMS INC 171 W 12326 WILKINS AVE ROCKVILLE MD ORANGETHORPE AVE PLACENTIA CA 20851 301 8111, 92670 714 528-0700 tape cartridge equip; digital timers; FIDELIPAC® automated videotape systems; video programmers; clocks; amplifiers 109 Gather Drive Mt. laurel, NI 08057 cartridge-cassette equip TAPEHEADS 4020 BEECHER ST NW (609)2353511 Trademark SUPERSCOPE INC 8150 VINELAND AVE continued on pag Circle 188 on Reader Service Card

108 SEPTEMBER, 1976- www.americanradiohistory.com ew signal processor better television pictures

leases Resolution Juces Visual Noise roves Color Quality

le Hills Avenue .1d, Ct. 06002 2-4242 TWX 710-425-2390 MICROTIME

Circle 189 on Reader Service Card VIBER, 1976-BM/E 109 www.americanradiohistory.com Now! Remote THE SOURCE '76 WASHINGTON DC 20007 202 A/V programming equipment transmitter TDK ELECTRONICS 755 EASTGATE GARDEN CITY NY 11530 5167 open reel, cartridge, cassette audio taw control TEAC CORP OF AM 7733 TELEGRAPNr. MONTEBELLO CA 90640 21377E audio tape recorders/reproducers, microphones, mixers, audio monitors, prst amps, power amplifiers, stereo and mons od consoles; studio systems TECH ELECTRONICS INC 6000 PEACHTREE RD NE ATLANTA Gil 30341 40445E videotape editing controller TECH LABS INC BERGEN BLVD PALISADES PARK NJ 07650 . 201 94401 audio and gain controls, RF and video attenuators; electronic switches See ad pg. 173-refer to rep/dist section TECHNICS PANASONIC ONE PANASC*4

WAY SECAUCUS NJ 07094 201 3411 I turntables; audio components, speakers See ad pg. 17 TECHNISPHERE CORP 215 E 27 ST NE4 YORK NY 10017 212881$ helical edit controller, portable switcher fader, color gen lock; equipment rental; p production services. TECHNOLOGY INC HF PHOTO DIV 11801 W OLYMPIC BLVD LOS ANGELE CA 90064 213 479 8-, 16-, 35mm film processors, pollution control and silver recovery systems STATUS AND TEKTRONIX INC PO BOX 500 BEAVER CANT OR 97007 503 644 oscilloscopes, video & picture monitors, sideband analyzers, spectrum analyzers, demodulators, sideband analyzers, RF correctors, waveform monitors, video tes generators, sync generators, automatic v correctors, VTR equip, vectroscopes, mo photometers video processing amplifiers; repair service is this simple. See ads pgs. 12, 81 Now there's an all digital system backup to your analog operation. field offices: Ala TKX Suite 8, 3322 S Memorial Parkway that gives you direct, positive on/off So, the direct control switches on Hentsville, 35801 205 88 2 control and status monitoring of the X-14 can be used for critical Ariz TKX 2643 E University Drive Phoenix remote AM, FM and TV transmitters. "key" functions while, at the same 85034 602 24 5 Calif TKX 2345 Stanwell Circle Concord We call it the X-14, and there's time, you're using the analog system 94520 415 se 0 nothing else like it. to read other transmitter parameters. TKX 16601 Hale Avenue Irvine Fourteen Line 92714 213 778 k toggle switches give you With our optional Multiplex TKX 6841 Convoy Court San Diego direct on/off control of up to 14 Filter, both the X-14 and your analog 92111 71425 0 different functions like: filament system will operate on the same TKX 3200 Coronado Dr Santa Clara 95051 408 24 voltage, plate voltage, main power, phone line. TKX 21300 Erwin St Woodland Hills 10 overload reset, tower lights and Exceptional data integrity is 91364 21395 program source selection. No longer another advantage of the X-14. Both Colo TKX 14 Inverness Dr East Suite 4A Englewood 80110 303 7 do you have to dial them in one-at- control and status information are Conn TKX 20 Commerce Park Rd Millford It a-time. updated every 400 MS, and a unique 06460 203 fri In addition, fourteen status "double check" logic system vir- Fla TKX 1871 West Oakland Park Blvd For Lauderdale 33311 305 7: 0 channels, each with its own, inde- tually eliminates data errors. There TKX Suite 109, 1040 Woodcock Rd Orl pendent LED indicator, monitor such are also fewer operator errors be- 32803 30581' functions alarms cause there's no dialing and knob TKX 4900 Bayou Blvd Suite 130 Pensa go/no-go and/or 32503 9044" as: power, voltages, temperatures, twisting. Each switch is labeled for a Ga TKX Suite 3, 2251 Perimeter Park intrusion, VSWR and tower lights. specific function. The X-14 is also Atlanta 30341 404 4: II TKX 5350 Keystone Meador a ATS-compatible. Ct Rolling You see complete display of 60008 312 2!. status and alarms, at-a-glance. The X-14 is just one of the many Kan TKX 8920 West 62 Terrace Kansas Cit Besides all this, the X-14 is an new ways TFT is applying digital Shawnee Mission 66202 913 2 La TKX 3004 34th Street New Orleans economical way to add capability to techniques to simplify and improve Metairie 70001 504 8 an existing analog remote control broadcasting remote control. For a Md TKX 1526 York Road Baltimore/ system. It meets the FCC control demonstration, call or write. In Lutherville 21093 301 3 TKX 1335 Piccard Drive Rockville failsafe requirements, and gives you Canada: Orange County Associates, 20850 301 9 a fully digital command system as Winnipeg, Manitoba. Ma TKX 482 Bedford St Boston/Lexington 02173 617 8 Mich TKX 25882 Orchard Lake Rd Farming) TIME AND FREQUENCY TECHNOLOGY INC. Hills 48024 313 4 Mo TKX 422 Anglum Road, St Louis/ ad 3000 OLCOTT STREET. SANTA CLARA. CA 95051 (408) 246-6365 TW X No 910-338-0584 17FT Hazelwood 63042 314 7 7 Circle 190 on Reader Service Card

110 SEPTEMBER, 1976 www.americanradiohistory.com KX 964 South Springfield Avenue telecine chains; character gens; encoders,

. Springfield 07081 201 379-1670 sync gens; routing switchers; source KX 1258 Ortiz Drive, S.E. Albuquerque identifiers, frame synchronizers, VTR5,

- 87108 505 268-3373 helical (cassettes); audio consoles, KX 678 Troy Rd Albany/Latham processing amplifiers; pulse & distribution 12110 518 785-3353 amplifiers; special effects generator; video A KX 100 Crossways Park West Woodbury cassette units; colorizers; TV event display '11797 516 364-9060 system, audio for TV, non-duplication f

MBER, 1976-BM/E 111 www.americanradiohistory.com TENTEL 50 CURTNER AVE CAMBELL CA TEXSCAN CORP 2446 N SHADELANDR I THE SOURCE '76 95008 408 377-6588 INDIANAPOLIS IN magnetic tape tension gauge VS 46219 317 3574 See ad pg. 140 audio attenuators & switchers; coaxial TELEX COMMUNICATIONS INC attenuators & switchers; signal generator! 9600 ALDRICH AVE SO MINNEAPOLIS MN TEPCO CORP PO BOX 680 RAPID CITY sweep generators, oscilloscopes, spectral 55420 612 884-4051 analyzers, impedance bridges, cable TV headsets, tape recorder/players, tape SD 57701 605 343-7200 comm. and system analyzers, tunable filters, VHF.'Ul-i, cartridge recorder/players, tape duplicators, TV translators; receivers, monitors, microwave equipment VS tuner test equip, test accessories & preamps, power amps VS terminators See ad pg. 91 Can Telex Electronics, Ltd. 590 Progress TERRACOM DIV OF CONIC CORP TEXWIPE THE CO 51 PROSPECT PLACI Ave. Unit 3, Scarborough, Ontario 9020 BALBOA AVE SAN DIEGO HILLSDALE NJ 07642 201 664 M1H 3A6 416 438-3804 CA 714 278-4100 cleaners for tape heads TELONIC ALTAIR PO BOX 277 LAGUNA microwave equip THALNER ELECTRONIC LABS BEACH CA 92652 714 494-9401 7235 JACKSON RD ANN ARBOR MI test instruments; RF attenuators; sweep TEXAS ELECTRONICS INC PO BOX 48103 313 761. generators, RF filters, microwave 7225-INWOOD STATION DALLAS TX character generators; special effect sub-systems; impedance bridges; dB meters 75209 214 827-3033 generators; pulse & distribution amplifiers; VS meteorological (weather) monitoring equip sync generators, screen splitters, slave clocks THERMODYNE INT. LTD 12600 YUKON AVE HAWTHORNE CA 90250 213 679. reusable shipping & handling containers

THETA-COM PO BOX 9728 PHOENIX A2 DELTA 85068 602 944- microwave equipment THOMSON-CSF LABORATORIES

for DIGITAL Antenna 37 BROWNHOUSE RD STAMFORD CT ' 06902 213 327- video cameras; video discs; color flying op Monitoring scanner; flying spot telecine; camera telecine chain; TV transmitters, A/D converters, pulse and distribution amplifier FCC TYPE APPROVAL sync generator systems, character NUMBER 3-218. generators, complete telecine systems, wireless mics, ALC and AGC amps, TRUE RATIO READINGS. compressor/limiters, AM and FM, equalize and filters HIGH RESOLUTION. See ad pg. 22-refer to rep/dist section Calif Thom CSF PO Box 36 La Canada STABLE UNDER HIGH DAM-1 91011 ...... 213 790 MODULATION. Mo Thom CSF 4220 H Casa Brazila Dr St Louis 63129 314 487 UP TO 6 TOWERS DA-2 STANDARD, 12 TOWERS WITH EXTENSION UNIT. THOR ELECTORNICS CORP BASE CURRENT ADAPTER AVAILABLE. 741 LIVINGSTON ST ELIZABETH NJ 07207 201 354- - power tubes and rectifiers TIME & FREQUENCY TECHNOLOGY IN( And Antenna/Transmitter 3000 OLCOTT ST SANTA CLARA CA 95051 408 246 - digital clocks, master clocks; frequency Remote Control. counters; remote digital displays; frequent monitors; modulation monitors; SCA monitors; standard time & frequency receivers See ad pg. 110-refer to rep/dist section REMOTES ALL DAM-1 At CONTROLS AND READ- TIMES WIRE & CABLE CO 358 HALL WALLINGFORD CT 06492 203 265 - OUTS. CATV cable & wire PROVIDES CONTROL TM SYSTEMS INC 25 ALLEN ST 366 AND STATUS DISPLAY BRIDGEPORT CT 06604 203 line amps, amplifier power systems, VU OF UP TO 30 FUNCTIONS; meters, dB meters PROVIDES ALARM TOCOM INC 3301 ROYALTY ROW IRVIf INDICATION OF 8 TX 75062 214 438 FUNCTIONS. CATV trunk, distribution amplifiers; head processors; connectors; distribution pass' FAILSAFE CIRCUITS two-way cable communication systems CONFORM TO FCC TOMCO COMMUNICATIONS INC REQUIREMENTS. 2399 CHARLESTON RD MOUNTAIN VIE CA 94043 415 969 . pre-amps, converters for CATV TMCS-1 TOPAZ ELECTRONICS 3855 RUFFIN RI SAN DIEGO CA 92123 714 279 power supply converters, uninterruptible powersystems, poser isolators, surge protectors TRACOR INC 6500 TRACOR LANE ALl DELTA ELECTRONICS TX 78721 512 926' automic, crystal frequency standards, via 5534 PORT ROYAL ROAD carrier generator, remote subcarrier systi P.O. Box 1508 countdown unit SPRINGFIELD, VIRGINIA 22151 TRANSIST-O-SOUND INC 851 EUSTIS I INDIANAPOLIS IN 46229 317 897 TELEPHONE: 703/321-9845 TWX: 710-831-0620 ALC and AGC amplifiers, portable mixer amplifier, recording amplifiers for mag so on film See ad pg. 174 Circle 192 on Reader Service Card

12 SEPTEMBER, 19784 www.americanradiohistory.com UNIMEDIA RTE 2 PO BOX 2574 E AUBURN UNITED RESEARCH LAB CORP 16 E 52ND awing the description of a company's CA 95603 916 272-1971 ST NEW YORK NY 10022 .... 212 751-4663 is stands for Verified Source. Com- video picture monitors VS op-amp modules, conversion amps, audio so identified have filed appropriate See ad pg. 136-refer to rep/dist section generators, professional tape recorders; re with BM/E indicating the products rebuilds of Ampex, Scully, etc VS led are in production and available. UNION CONNECTOR CO INC 149 BABYLON TPK ROOSEVELT NY UNITED SYSTEMS CORP (DIGITEC) tify all manufacturers of a particular 11575 516 623-7461 918 WOODLEY RD DAYTON OH ;class or category consult the Instant patch terminals; heavy duty plugs/connectors 45403 513 2546251 Locator pages 56-73. VS frequency counters, counter-timers; digital UNITED PRESS INTL 220 E 42ND ST NEW clocks; digital voltmeters; frequency YORK NY 10017 212 682-0400 converters, frequency synthesizers; pulse, LUX CORP 625 MADISON AVE newswire service; cable newswire VS sine, square-wave generators; time base IRK NY 10022 212 751-3110 generators, status and alarm indicators VS ection screens VS UNITED RECORDING ELEC IND (UREI) 11922 VALERIO ST N HOLLYWOOD CA U S PIONEER ELECTRONICS CORP )UND INC 13733 GLEN OAKS 91605 213 764-1500 75 OXFORD DR MOONACHIE NJ YLMAR CA 91342 213 367-6543 compressors/limiters, amplifiers, modules, 17074 201 935-4300 :ondenser microphone VS audio consoles, equalizers VS tape recorders; head sets; microphones; See ad pg. 106-refer to rep/dist section a ;ENG INC 1941 FIRST ST SAN continued on page 114 ADO CA 91340 213 365-3124 licture color and B/W film is:rs; film cleaners; film processor ales VS

1 A CORP OF AMERICA 30 WEST LON AVE ENGLEWOOD NJ 201 567-3810 DELTA Jeo automatic line program alarm 'MOWER CORP 7182 RASMUSSEN ALIA CA 93277 209 732-8383 for ANALOG Antenna 1Loorting, guyed towers; portable Monitoring ir. L 17 CORP 286 HARMON RD aliFfON OH 45817 419 358-5015 FCC TYPE APPROVAL It d meters; unimeters; voltmeters; NUMBER 3-235. -t-ers VS -FINICS INC 4019 TUJUNGA AVE NO TRUE RATIO READINGS. I `'. 1WOOD CA 91604 213 877-9912 a :on equipment rental, post-production SIMPLE INTERFACE CE studio design, radio and TV; WITH EXISTING REMOTE can construction, facility turnkey CONTROL EQUIPMENT. Ian, color video monitor VS i ilETER ELECTRONICS INC STABLE UNDER HIGH 'MANCHE AVE CHATSWORTH CA MODULATION. I 213 882-1020 AAM-1 a ! tinax, triax cable patching equip; UP TO 8 TOWERS DA-2. :'a tinax switching matrices, RF to ,,ors, switchers, cables, connectors PHASE SIGN DATA VS ALWAYS AVAILABLE - NO EXTRA OPERATION REQUIRED. E ME INSTRUMENT CO 429 OLIVE LOW PRICE. JOATA ROSA CA 95401 .. 707 528-1230 sime systems; frequency monitors :caters VS

OS INC 2005 NAUDAIN ST UrAELPHIA PA 19146 .... 215 545-3488 And Antenna/Transmitter 2 nsoles, VU meters VS REMOTES ALL AAM-1 Remote Control . CONTROLS AND READOUTS. ON/RAISE AND OFF/ LOWER CONTROLS FOR 4 tSOCIATES 6037 HAVILAND AVE UP TO 30 FUNCTIONS. t -ER CA 90601 213 693-2506 PROVIDES -ulators, CCTV switcher VS DIGITAL DISPLAY OF UP TO 30 4 AUDIO PRODUCTS PIXTEC BOX IERLY HILLS CA FUNCTIONS; PROVIDES 213 276-2726 ALARM INDICATION )nsoles; rewinders; video picture s; videotape cleaners; prompters, OF 8 DIFFERENT quip; waveform monitors; pulse cross FUNCTIONS. lc' rs, vectorscopes VS a og. 173-refer to rep/dist section FAILSAFE CIRCUITS LECTRONICS CO SENSTROL DIV CONFORM TO FCC 3CKETT PT RD NORTH HAVEN CT TMCS-2 REQUIREMENTS. 203 288-7731 asers, multi-cart machines, splice audio heads VS ( pgs 96, 147-refer to rep/dist section :0-ROHN DIV OF ROHN IND INC DELTA ELECTRONICS X 2000 PEORIA IL 309 697-4400 5534 PORT ROYAL ROAD as, TV; towers, hardware and P. 0. BOX 1508 iction equipment VS SPRINGFIELD, VIRGINIA 22151 NE CORP (RADONIC DIV) TELEPHONE: 703/321-9845 TWX: 710-831-0620 :OTT ST NORFOLK VA 804 855-1089 as automation systems for radio 8 TV Circle 193 on Reader Service Card

EMBER, 1976-BM/E www.americanradiohistory.com THE SOURCE '76 NECESSITY stereo monitor receivers UTILITY BODY CO 901 GILMAN ST BERKELEY CA 94710 415 52 aerial lifts UTILITY PRODUCTS CO 6665 N 60 ST A 414 11)11450YOU CAN MILWAUKEE WI 53223 3 buried cable closures UTILITY TOOL CORP TOWN ST E HA AFRD. CT 06423 203 87 hand & machine-powered tools for cable preparation Routing Switchers: UTILITY TOWER CO PO BOX 12027 OKLAHOMA CITY OK Frame Size (system expandable) 73112 405 9 antennas & towers for AM, FM, TV & 40 x 20 3 level 40x microwave audio & 20 x 10 3 level video plus 20x-b V aux. 101A61111 20 x 10 5 level 20x VACUUM TUBE INDUSTRIES 35 PECU ST BOX 358 CANTON MA 02021 617 8 vacuum power tubes, rebuilt 16 x 10 audio & video See ad pg. 150 with P.B. control Rx VAMCO ENGINEERING BOX 7512 TU OK 74105 918 25 digital tape timers; clock systems; A/V 15 x 2 audio & video distribution amplifiers; video tape timer for ENG & TVC); A/V routing switcher; 15 x 6 variety of chroma-key kit 15 x 12 15x controls VARIAN ASSOC ELECTRON DEVICE GROUP 611 HANSEN WAY PALO AL CA 94303 415 48 x 10 audio power vacuum tubes; RF switches; soc or variety of klystrons; TWT5; microwave componen 24 x 20 controls Ax xenon lighting; cooling equip VARIAN/BERERLY MICRO-LINK PRODUCTS 8 SALEM ROAD BEVERLY I 01915 617 92 ITFS & MDS microwave & systems; fit

microwave RF components, assemblies 11 Production Switchers: subsystems; exciters, modulators, TV translators

,Orrells ,Are.111S41,11113111/ (11.W.171a VEDCO INC 2320 N WOODLAWN AVE 1111 3 Bus 11 Inputs METAIRE LA 7001 504 Soft Wipes routing switchers; A/V distribution ampli i; Linear Key VEGA ELECTRONICS DIV OF CETEC 9900 All Vertical Interval BALDWIN PL EL MONTE CA e.1 3100 91731 213 44 It: 19 Effects wireless microphone systems; wireless microphone accessories 28 Features in one See ad pg. 116-refer to rep/dist section Low Cost Unit VERMEER MFG CO PO BOX 200 POL IA 50219 515 6 trenchers 5 Bus 11 Inputs VERSA COUNT ENGINEERING 553 LIV Remote Control BLVD ELK GROVE VILLAGE IL Chroma Key 60007 312 59 emergency power equipment, batteries; Key Edger video processing amps, FM and TV Border Generator 3300 translators, FM transmitters Audio - Follow VICON INDUSTRIES 140 CENTRAL A Soft Wipes and Keys FARMINGDALE NY 516 2 CCTV connectors ,Imasommuminiesmoreamanow VIDEO AIDS CORP OF COLORADO 11 FOURTH ST LOVELAND CO COMING SOON 80537 303 66 sync generators; cross pulse generatorS; 3400 6 Bus - 3 Mix Effects Low Cost gen-lock; ; burst phase meter; monitors; videotape editors; intercom See ad pg. 42

VIDEO COMPONENTS INC 601 SO MA ST SPRING VALLEY NY 10977 914 3 CO MTEC video synthesizer and colorizer (BJA), and broadcast camera lenses (Canon U modulators and demodulators (CATEL); COMMUNICATIONS TECHNOLOGY, INC. mobile carts (Gruber Products), mounti equipment (Quick-Set), 16mm TV proje 3070 Leeman Ferry Rd. Huntsville, Alabama 35801 Phone 883-7370 TWX 810-726-2105 (Singer), lighting equipment (Smith-Vic sync generators, burst phrase meters, Circle 194 on Reader Service Card

114 SEPTEMBER, 197 www.americanradiohistory.com amplifiers; sync generators, special effects _Mowing the description of a company's generators; tape duplicators; pulse w As stands for Verified Source. Com- amplifiers; wire & cable; connectors e so identified have filed appropriate w ire with BM/E indicating the products VISUAL ELECTRONICS CORP t ned are in production and available. (See Rapid 0) VISUAL INFORMATION INSTITUTE INC PO ANOTHER citify all manufacturers of a particular ti; t class or category consult the Instant BOX 33 XENIA OH 45385 513 372-8637 Locator pages 56-73. test equipment for CATV, sync generator systems, video test materials and generators See ad pg. 169 GOOD VISUAL METHODS INC 5 WORTENDYKE ;11.: optical isolators (Video Aids Corp.), switchers (Portac), shipping cases AVE MONTVALE NJ 07645 201 391-7383 TV surveillance cameras; camera lenses VS Trt odyne), optical multiplexers (Zei-Mark) BUY VS VITAL INDUSTRIES INC 3700 NE 53RD .CONCEPTS INC 3715 LOMITA AVE GAINESVILLE FL 32601 904 378-1581 Alf rORRANCE CA 90505 . 213 373-8539 TV automation equip; video processing J ulse generator; videotape editor: :lock timer; small video switcher VS amplifiers; video production & routing switchers; video & audio distribution THE 01 DATA SYSTEMS 657 OLD WILLETS amplifiers; pulse distribution amplifiers; cll 1AUPPAUGE NY special effects generators; chroma keyers VS 516 234-1010 See ad pg. 9 et er generators; TV titling & data BEST Calif G. Peters 7960 W Beverly Blvd Los al systems VS Angeles 90048 213 653-9438 MAX (DIV OF ORROX CORP) Ind M. Beavers 2644 North 7th Street Terre Haute 47804 812 466-3212 NEW 11 COTT BLVD SANTA CLARA CA 408 988-2000 NY R. McAll 34 Autumn Lane Hicksville mi video recording heads & headwheel 11801 516 735-0055 )lies, replacement heads VS Tex G. Peters Box 912 Arlington TIME CODE 4113g. 3-refer to rep/dist section 76010 817 261-6855 dii 3il1 Seidel 7020 Delco Avenue Va E. King Fox Hill Road Lynchburg xi Canoga Park 91306 213 980 -7927 24503 804 384-7001 READER/ - 7 >I :rank Benson 11520 Bowen Rd. Roswell ist (Atlanta) 30075 ,,,,,,, 404 992-4490 VITEK ELECTRONICS INC 200 WOOD AVE ferry Cudlipp 24 Addison Terr. Old MIDDLESEX NJ 08846 201 469-9400 DISPLAY cio Tappan 07675 212 947-8031 CATV test equip *MEMORY CORP 3070 KENNETH ST AI CLARA CA 95050 .... 408 246-5820 ;up ist quality helical VTR NOW 11B-'OPTICS 1916 OLD MIDDLEFIELD w tOUNTAIN VIEW CA 415 965-4298 $1990 level camera VS WARD BECK SYSTEMS LTD 'SENTRY SYSTEMS 1080 RTE 46 841 PROGRESS AVE SCARBOROUGH ONT reads fast forward and IN NJ 07013 201 777-7600 M1H 2X4 416 438-6550 udio TV program loggers audio consoles; modules; TV intercom, audio reverse-full speed amplifiers, audio processing equipment, dB 1:1E0 TAPE CO 4212 LANKERSHIM reads from 1/5x to 50x meters VS 1 HOLLYWOOD CA 213 985-1666 See ad cover 2 real time ssed videotape; videotape cleaning & NY WB 290 Larkin St Buffalo :on; tape accessories VS 14210 416 438-6550 auto hold activates EK INC 640 E VINE ST STOWE PA WATERS MANUFACTURING INC when incoming code 215 367-6977 LONGFELLOW CENTER WAYLAND MA snitors VS 01778 617 358-2777 falls below 1/5 %Ai . 144 audio attenuators & controls, rotary & slide real "MI EL INC 42 CENTRAL DR time tglINGDALE NY 11735 516 420-1470 WAVETEK INDIANA INC 66 N FIRST AVE BEECH GROVE IN dynamic range ±12db 8 reels & boxes for video & audio tape 46107 317 783-3221 from nominal M)NICS 855 N CAHUENGA BLVD CATV test equip; sweep/signal generators, - Or WOOD CA 90038 213 466-9741 RF detectors; function, signal, sweep digital readout visible t, ape transfer generators; oscilliscopes; phase meters; transmission level test set; programmable from 40 ft. 1KERNATIONAL BOX 1555 MT VIEW waveform synthesizers; test accessories t 142 408 739-9740 displays user bits Dund music systems; automatic WABASH TAPE CORP 2720 DES PLAINES St: n intermix units; tape AVE DES PLAINES IL 312 - et ar/players; tape heads; plug-in 60018 298-8585 ASK FOR IT BY NAME: ab )r adaptors for Ampex recorders; helical-scan video magnetic tape; audio /S imp; video program timers, magnetic tape CMX TIME CODE 111 ssor/limiters/filters, FM VS WEAVER J A CO 8676 PENNEL DR ST READER/DISPLAY *EN 4918 WEST 35TH ST LOUIS MO 63114 314 997-5555 IBtAPOLIS MN 55416 612 927-7716 bonded copper ground rods, ground rod X tic tape heads VS clamps; jumper clamps SiN See Listec WELLER-XCELITE ELECTRONICS DIV COOPER GROUP PO BOX 728 APEX NC UNT INDUSTRIES LTD 105 E 69TH 27502 919 362-7511 MX 11 ANCOUVER BC soldering guns, wire stripping tools, 604 327-9446 hardware It1 production 3303 Scott Boulevard switchers; pulse & WESTLAKE AUDIO 6311 WILSHIRE BLVD arr Lion amplifiers; routing switchers; LOS ANGELES CA 90048 213 655-0303 Santa Clara, Ca. 95050 Is, effects generators; chroma keyers tape splicing block & cleaner; speakers, Phone: 408-988-2000 VS cabinets, furniture, acoustic materials, Telex: 910-338-0554 *NARY ELECTRONICS 141 PARKER complete studio construction VS Sales & Service: 41 AN FRANCISCO CA See ad pg. 141 Dallas: 214-242-2690 415 751-2903 WESTON INSTRUMENTS INC Los Angeles: 213-980-7927 elle3raphics generator (audio responsive) AVE NEWARK NJ 614 FRELINGHUYSEN New York: 212-371-1122 L EDUCOM INC 4333 S OHIO ST 07114 201 242-2600 AOCITY IN 46360 219 879-8311 analog VU meters, voltmeters, multimeters, - cameras; surveillance video cameras; dB meters DISTRIBUTORS WANTED t monitors, video switchers, distribution continued on page 116 Circle 195 on Reader Service Card

leEMBER, 1976-BM/E 115 www.americanradiohistory.com telecine film chain with preview; film ch THE SOURCE '76 z adapters for 16 mm & super-8 mm film projectors, lap dissolve slide chain, tel accessories WIDE BAND ENGINEERING CO INC PO ZEI-MARK CORP PO BOX 182 BOX 21642 PHOENIX AZ BROOKFIELD CENTER CT ZOOMAR INC 55 SEA CLIFF AVE GL 85036 602 254-1570 06805 203 355-0008 COVE NY 11542 516 6 RF amplifiers, analyzers; impedance bridges; optical multiplexer; neutral density wheel; optics; optical instruments directional couplers; power dividers WILKINSON ELECTRONICS INC PO BOX 738 TRAINER 19013 215 497-5100 AM & FM broadcast transmitters; audio consoles; audio compressor/limiters; distribution amplifiers, equalizers, line amplifiers; demodulators, exciters, RF BM/E Invites Entries For amplifiers; modulation & frequency monitors; AC line surge protectors VS 1976 Best Station Award see ad pg. 131-refer to rep/dist section Entries are being sought for the BM/E sponsored Best Station Award Conte WINEGARD CO 3000 KIRKWOOD ST now in its third year. BURLINGTON IA 52601 319 753-0121 The objective of the contest is to award the station which has organized CATV antennas, amplifiers, drop and best broadcast studio or overall plant design or modernization that increas distribution equipment; accessories; home system amplifiers operating efficiency. One station in each of the three categories, AM, FM, and TV, which can sh WORLD VIDEO INC PO BOX 117 that its approach to plant organization or studio design has been humanly en BOYERTOWN PA 19512 215 367-6055 neered, with a cost-conscious and effective execution will win the award based broadcast & CCTV one-gun (Trinitron) color the response of our readers. monitors; demodulators, AC/DC color portable monitor VS The 1974 winners were: KMWX-AM, Yakima, Washington; WNHU-FM, Ne Haven, Connecticut, and WTCN-TV, Minneapolis, Minnesota. Last year's winne were CHWO-AM, Oakville, Ontario; WIDH-FM, Kalamazoo, Michigan, an WPRI-TV, Providence, Rhode Island. Each of these stations demonstrated a degree of excellence in manageme and engineering that BM/E's readers felt deserved recognition. This year's contest expects to confront an even more difficult choice tha YARDNEY ELECTRIC CORP 82 MECHANIC before and is seeking wide participation by station management and engineerin ST PAWCATUCK CT 02891 .. 203 599-1100 personnel who feel that their efforts deserve recognition. Complete details o silver, zinc & cadmium batteries; chargers, entering contest are on page 151. high intensity lights VS See ad pg. 142

Vega Wireless Microphone Systems Ahead of Their Time, And Still Improving Crystal controlled, VHF operation for stability and low interference. Ultra-sensitive, high performance receivers have 4-cavity, helical-resonator preselectors for sharp selectivity and low distortion. New Model 77 transmitter has many improved features, Lemo "Quick-Loc" mic connectors, sturdy noise-free sealed case to resist moisture and corrosive body acids, separate battery compartment, and selectable output power and dual-function meter. New single-package and 4-channel diversity receiving systems let you handle severe conditions with extra convenience. From our low-cost "Orator" model, to our hand-held "Performer", Vega has always been the leader in frequency response, dynamic range, low distortion and effective operating distance. Our transmitters now have all-new compressors that gently avoid overmodulation without harsh clipping, yet won't "latch up" even on gun shots, The unit also has a dual-function meter and selectable power output of 25mW or 100mW. All receivers have multi-function metering and headphone outputs for complete monitoring capability. 5w. In response to popular demand, the Lemo "Quick-Loc" mic connector is

now standard, yielding positive contact and longer cable life. Additionally, the Nal Lemo connector will supply bias voltage for electret-condenser mics, eliminating external battery requirements. You can use the professional mic of your choice. Vega receivers operate gt. from AC, battery, recharge- VGa able battery, or external DC 1E I power. There are many more Actt features and products we'd like you to know about, so SEND FOR OUR 71" NEW CATALOG today.

Division of Cetec Corporation 9900 Baldwin Place - El Monte,California 91731 \a. e Vega Telephone: 12131 442-0782 TWX: 910-587-3539

Circle 196 on Reader Service Card 116 SEPTEMBER, 19711 www.americanradiohistory.com ,r's what a lot of people who use in or out of the studio. ability. There's simply nothing else camera systems are telling us. They like the dependability, the feeling comparable at the price. e specifically, they're saying that of confidence they have when they So they get hooked on CEI. like the really extraordinary know long- they can rely on their cameras. Take a look for yourself. You may end

[ of stability the color, hour after They like the system compatibility, the up getting hooked, too, but we promise is day long, without touching all fact that all CEI 200 Series cameras you'll love every minute of it. .:ontrols. operate from common control units. Call your CEI representative. Or write the fact that every / like system With great color matching. us at 880 Maude Avenue, Mountain I lent is light and easy to handle, And best of all, they like the afford- View, California 94040.

TAKE A NEW LOOK CM

IF YOU'RE NOT CAREFUL,YOU

1. AN GET HOOKED ON CEI.

Circle 197 on Reader Service Card

www.americanradiohistory.com Line: audio equipment Shure see ad p 83 BROADCAST AUDIO ASSO 5905 Jurupa Suite A Riverside 92504 Independent Broadcast 714-453-3255 Line: full line of audio equip BROADCAST CARTRIDGE SERVICE 1227 N. Vine St. Reps/Distributors Hollywood 90038 213-464-5100 Line: audio components & tridges See ad p 168 Including cross reference to companies BROADCAST COMMUNICA DEVICES INC. 5526 E. LaPalma Ave. whose products are advertised Anaheim 92807 714-528-9505 1850 Warburton Ave., Suite 2 Santa Clara 95050

408-984-6614 1 Line: full line audio & video eq 205-772-9237 TOM BUTLER TFT see ad p 110 tubes, components P.O Box 119 ALABAMA Line: power G.M. BURKHARDT CO. ad p 11, 29 Limestone 72646 Amperex see 26311 Marina Rd. 501-428-5257 San Juan Capistrano 92675 Line: audio and video equip 714-495-4047 BCS ASSOCS McMartin see ad p 92 3322 S. Memorial Pkwy. Line: multi-cart equip & tape eqti Huntsville 35803 ALASKA CUSTOM PRODUCTS UMC see ad p 96, 146 107 East Calhoun 205-881-6220 CAMEX CORP. Line: full line video equip Magnolia 71753 HARRY J LANG & ASSOCS. Line: audio components 6362 Hollywood Blvd. TFT see ad p 110 Hollywood 90028 CEI see ad p 117 1406 W. 47th Ave. Micro-Trak see ad p 120 Anchorage 99501 213-464-0174 CALHOUN CO. INC. 907-279-5741 PAUL JAMESON Line: full line of radio equip 240 Oxmoor Circle Suite 102 Line: audio & video equip P.O. Box 247 CARA PACIFIC SALES CO. Birmingham 35209 McMartin see ad p 92 Magnolia 71753 205-942-7620 501-234-3778 4145 Via Marina No. 120 Line: full line video equip R.F. CASSADY Line: attenuators Marina Del Ray 90291 P.O. Box 2743 Tech Labs see ad p 173 213-821-7898 CHEROKEE SUPPLY Fairbanks 99707 Line: audio components, test exit 103 Bibb St. Line: radio equip Orban/Parasound see ad p 98 Alexander 35010 Collins see ad Cover 4 Orban Broadcast see ad p 128 Line: audio components Micro-Trak see ad p 120 NORTHERN VIDEO SYSTEMS INC. CALIFORNIA JACK CARTER ASSOC., INC. 4600 Business Park Blvd. 11200 Chandler Blvd. JAMES W. CLARY CO. Anchorage 99503 No. Hollywood 91603 1713 Second Ave. So. 907-279-5571 ACCURATE SOUND CO. 213-980-3450 Birmingham 35233 Line: full line audio & video equip 114 5th Ave. Line: audio recorders & equip 205-322-2486 Redwood City 94063 Tandberg see ad p 86 Line: audio components 415-365-2843 Micro-Trak see ad p 120 COAST RECORDING EQUIP. Line: full line of audio equip 6114 Santa Monica Blvd. KELLEY'S AUDIO ENGINEERS ARIZONA ANIXTER-PRUZAN Hollywood 90038 1905 35th 2228 S. Ritchey 213-462-6058 Sheffield 35660 Santa Ana 92705 Line: audio equip 205-381-1412 MORRIS COURTRIGHT 714-556-6270 Line: audio equip HOWARD DEMSEY 1450 W. Arroyo Dr. Line: Sony studio video equip, cable MCI see ad p 63 1743 W. Vartikiam Yuma 85364 construction accessories, tools, Fresno 93705 LEE ASSOCS. 602-783-6380 headend, passives, test equip, 209-439-1991 817 Wheeler Ave. Line: radio equip power supplies Line: AM & FM transmitters Huntsville 35801 Collins see ad Cover 4 205-533-5896 AUDIO CONCEPTS EDUCATIONAL ELECTRONICS".. Line: test instruments MEASUREMENT CONSULTANTS 7138 Santa Monica Blvd. CALIFORNIA P.O. Box 966 Marconi see ad p 135 Hollywood 90046 Suite #8 Scottsdale 85252 213-851-7172 90 Glen Way THE MAZE CORP. 602-994-9519 Line: audio equip Belmont 90004 P.O. Box 6636 Line: test instruments ORK see ad p 145 415-592-5713 Birmingham 35210 Marconi see ad p 135 936 West Florence Ave. 205-591-4800 AUDIO INDUSTRIES CORP. Inglewood 90301 ROH'S INC. Line: full line broadcast (radio & TV) 1419 N. LaBrea Ave. 213-674-5595 & recording equip 4553 E. Broadway Hollywood 90028 Line: CCTV video systems Micro-Trak see ad p 120 Tucson 86711 213-851-4111 602-327-5929 Line: audio components, equip BRYANT W. ELLIS WILLIAM MOATS Line: full line video equip, CCTV MCI see ad p 63 1227 North Vine Street P.O. Box 861 systems Hollywood 90038 Athens 35611 TOM AYE ASSOCS. SPECTRUM ASSOCIATES INC. 213-464-5108 205-232-6592 1508 Albatross Dr. Line: audio equip Line: radio equip 1944 W. North Lane Sunnyvale 94087 Phoenix 85029 Aristocart see ad p 160 PROFESSIONAL REPS 408-758-1406 602-997-6324 Line: audio components, full line EQUINOX SALES CO. 804 Floral Ave. Line: audio components Opelika 36801 radio equip 210 N. Richman Ave. Tech-Labs see ad p 173 Fullerton 92632 205-745-2192 JOHN BAUMANN Line: audio and video products 714-879-3190 5526 East La Palma Ave Line: audio & sound systems JESS SWICEGOOD Anaheim 92807 P.O. Box 1741 ARKANSAS 714-528-9505 EVANS MARKETING CO. Dothan 36302 Line: video switchers, animation 1438 Rollins Rd. 205-794-6339 equip Burlingame 94010 Line: audio equip; transmitters Computer Image see ad p 47 415-342-3030 ALLIED SOUND VISUAL ED. INC. Line: audio equip 20TH CENTURY MARKETING 3520 W. 69th St. Suite 306 JACK BERMAN CO. INC. Beyer see ad p 107 P.O. Box 6127 Little Rock 72209 P.O. Box 6003 Revox see ad p 121 Hertz Skycenter 501-568-2294 Inglewood 90301 Huntsville 35806 Line: full line video equip 213-649-6111 EVERYTHING AUDIO

118 SEPTEMBER, 1976, www.americanradiohistory.com Sherman Way ComTec See ad p 114 P.O. Box 5218 Line: full line audio equip acces- lys 91405 Redwood City 94063 sories 3-4447 JOHN G. HUMBLE 415-365-6263 See ad p 102 udio equip 2011 W. Kattella #44 Line: camera lenses, full line CCTV ESE see ad p 119, 166 to ad p 119, 166 Anaheim 92804 video equip, video camera acces- Micro-Trak see ad p 120 714-991-1964 sories, video editors MCI see ad p 63 ECO OF CALIF. INC. Line: audio & video equip anta Monica Blvd. MOUTHROP SALES INC. PERSPECTIVE MEASUREMENT )od 90038 MARTY JACKSON 1530 East 12 St. P.O. Box 470 3-9361 1850 Warburton Ave. Suite 203 Oakland 94606 Cerritos 90701 ameras, lighting equip 010t0 Santa Clara 95050 415-261-7676 213-926-7002 408-984-6614 Line: audio components, equip Line: video systems p 175 Line: automation & video switching Shure see ad p 83 CEI see ad p 117 equip Tandberg see ad p 86 -M AUDIO CORP. Computer Image see ad p 47 GORDON PETERS LaBrea MOXON ELECTRONICS 7960 W. Beverly Blvd. od 90046 JAYLIN ENGINEERING 17801 B. Sky Park Circle Dr. Los Angeles 90048 1-4447 332 Peppertree Rd. Irvine 92707 213-653-9438 jdio components Walnut Creek 94598 714-556-6500 Line: video switchers, equip 415-933-0755 2376 Walsh Road Vital see ad p 9 %AMERICAN BROADCAST Line: audio components Santa Clara 95050 RDX DIST. DIV. Ramko see ad p 44, 45 408-249-2491 1287 Lawrence Station Rd. vlain Street 7969 Engineer Road 93001 KDH ELECTRONICS Sunnyvale 94086 4233 W. Sierra Madre #205 San Diego 92111 408-734-4500 -7761 714-292-4800 Fresno 93705 Line: electronic components :dio components 1440 S. State College Blvd. Line: audio & video equip Devices see ad p 174 w ad p 119, 166 Bldg. Electronic Dynasciences see ad p 18 6E i! ad p 10 Anaheim 92806 THE REP COMPANY KHN DAVID LINT ASSOCS. 714-635-7600 8361 Vickers St. "catch Drive 2444 Old Middlefield Way-Suite M Line: test instruments Suite 305 94536 Mountain View 94043 Marconi see ad p 135 San Diego 92111 415-964-5344 714-292-9001 ' -8344 NEWCRAFT INC. leo proc. equip Line: audio equip Line: electronic components, tubes Modular Audio see ad p 173 8383 Wilshire Blvd. Amperex see ad p 11, 29 ad p 59 Beverly Hills 90211 MacPHERSON SALES CO. MOLLARD INC. 213-655-1111 RIGGINS ELECTRONICS P.O. Box 5212 Bayshore Rd.-Suite 104 Line: full line of CCTV, video equip 3272 E. Willow St. Walnut Creek 94596 A Long Beach 90815 94303 415-937-1482 OMEGA ASSOCS. 91-9321 213-598-7007 Line: audio equip 14169 Hawthorne Blvd. Line: audio components, equip : idio components Vega see ad p 116 Hawthorne 90250 Micro-Trak see ad p 120 s9M) libs see ad p 173 213-644-3649 Broadcast Electronics see ad p MARSHANK SALES CO. Line: video equip 162 I iL:%. HILL 10455 W. Jefferson Blvd. ?Idale Rd. Culver City 90230 PACIFIC RECORDERS & ENG. SCHAFER ELECTRONICS )ugh 94010 213-559-2591 CORP. CORPORATION -2157 Line: audio equip, sound systems 11100 Roselle Street 75 Castilian Drive ideo switchers and proc San Diego 92121 Goleta 93017 CHARLES MICHEL 714-453-3255 continued on page 120 PERFECT TIMING

+ EOM ill MIMI RMIFOOMMONRIOUMIU4ER I, OWN, ° gig 11111111 111 1111 °

u, 8 111 111 0 Q 0 orogrammer/Comparators and Controllers

tether your station is based in New York, Honolulu or any- When you want to program more than ten events, consider ere in between, perfect timing of programs, station breaks the ES 780 Series of Programmer/Controllers: A Solid State commercials is essential. To meet your exacting timing Random Access Memory united with an ESE clock or timer to luirements ESE now offers two precision timing systems. provide 32 user-programmed outputs. Ten minutes is all you flexibility and economy with up to ten events, ESE has de- need to program all 32 events. Manual override and ten sec- ,ned the 750 Series of Programmer/Comparators. ond re-programming provide maximum flexibility. gged thumbwheel programmers coupled with an All this in 51/4 inches of rack space! Internal E clock or timer to provide a single pole con- crystal time-base and battery pack are standard :t closure (1 Amp contact rating) for the length features. Four digit, 32 event units are $1,200. time program matches display. Low on cost, the and Eight digit, 32 event units are $1,500. liable Programmer/Comparators start at $305. Custom options and special orders are available. ite, Wire or Call Today: 5051/2 Centinela Avenue Inglewood, California 90302 (213) 674-3021

Circle 198 on Reader Service Card EMBER, 1976-BM/E 119 www.americanradiohistory.com 714-842-8422 VIF INTERNATIONAL 1440 S. Santa Fe THE SOURCE '76 Line: radio & TV equip 1151 Viscaino Ave. Denver 80223 McMartin see ad p 92 Sunnyvale 94038 303-744-2501 408-739-9740 Line: audio & video equip 805-968-0755 TABER MFG. & ENG. Line: audio components & proc Line: audio components 2081 Edison Ave. equip DENVER SOUND SPECIALI ESE see ad p 119, 166 San Leandro 94577 Inovonics see ad p 18 5701 N. Logan 415-635-3831 Denver 80216 JOHN SCHNEIDER 1227 N. Vine Street WESTATES ELEC. 303-573-5611 P.O. Box 725 Hollywood 90038 20151 Bahama St. Line: full line of audio equip Diablo 94528 213-464-5108 Chatsworth 91311 Inovonics see ad p 18 415-820-3811 Line: audio components 213-341-4411 DIDIER/DENVER Line: radio and TV equipment Inovonics see ad p 18 Line: electronic components P.O. Box 1599 McMartin see ad p 92 Electronic Devices see ad p 174 TECH-REP ASSOC. Evergreen 80439 BILL SEIDEL P.O. Box 6103 WESTERN BROADCAST 303-674-6000 7020 Delco Ave. Hayward SERVICES Line: full line audio & video equi[ Canoga Park 91306 415-785-4531 1030 West Evelyn Datatek see ad p 8 213-980-7927 Line: audio components Sunnyvale 94086 TFT see ad p 110 Line: video heads, components Robins see ad p 163 408-738-2100 Computer Image see ad p 47 Videomax see ad p 3 Line: audio equip, RF monitors SIGMA AUDIO SYSTEMS TELERGY 2412 Charleston Rd. WINCO SALES, INC. TITTIME P.O. Box 2469, H'wood Sta. FREQUENCY - Hollywood 90038 Mountain View 94043 P.O. Box 238 TECHNOLOGY INC 213-462-8515 415-067-6281 San Carlos 94070 Line: full line of audio equip Line: TV prod. equip 415-365-6082 CEI see ad p 117 Line: video & audio components DAN J. SOFIE TRANSMITTER 7119 Pomelo Drive TOTAL VIDEO SERVICE BILL WISEMAN Canoga Park 91307 4201 La Mirada Dr. 3200 Wilshire Blvd. Suite 900 REMOTE CONTROI 213-884-6269 Bakersfield 93309 Los Angeles 90010 Line: video proc. equip 805-324-7239 213-387-7756 SYSTEMS Microtime see ad p 109, 124 Line: video equip Line: video equip American Data Corp. see ad p 40 SOUND DYNAMICS INC. TREGO SALES CO. on Dannynumval P.O. Box 32055 2239 Benedict Canyon Dr. YH ASSOCIATES San Jose 95152 Beverly Hills 90210 15352 Stanford Lane 674-6000 408-926-3588 213-274-8351 Huntington Beach 92647 Line: audio components Line: audio equip 714-893-9487 TWX 910-320-03 Micro-Trak see ad p 120 Beyer see ad p 107 Line: audio equip SOUND DYNAMICS, INC. Revox see ad p 121 ESE see ad p 119, 166 Evergreen, CO 804 P.O. Box 1335 TRI TRONICS INC. Sunnyvale 94088 4019 Tujunga Ave. 408-926-3588 ELECTRO TEK N. Hollywood 91604 Box 395 Line: audio components 213-985-6616 COLORADO ESE see ad p 119, 166 Westminster 80030 Line: video equip 303-255-4566 SOUND GENESIS INC. Line: audio components, syst VIDEO EQUIPMENT CORP. B&B ELECTRONICS 445 Bryant St. Robins see ad p 163 7377 Convoy Court 884 S. Lipan San Francisco 94107 Denver 80223 415-391-8776 San Diego 92115 GRIFCO 714-278-4274 303-934-2123 Line: audio equip Line: sound systems P.O. Box 1171 QRK see ad p 145 Line: audio & video equip Suite 102, W. Littleton Blvd. Vega see ad p 116 VIDEODETICS CORP. Littleton 80210 SPECTRUM ASSOCIATES, INC. 303-795-1989 1823 E. 17th St. 2121 S. Manchester Blvd. B & B ELECTRONIC PRODUCTS Anaheim 92802 INC. Line: recorders and audio Santa Ana 92711 ponents 213-323-0603 Line: video equip, lighting equip 500 Quebec S. Tanderg see ad p 86 Line: audio components Denver 80237 Tech-Labs see ad p 173 VIDEO SYSTEMS INC. 303-733-6700 HIGHLAND ASSOCS. 12530 Beatrice St. Line: audio equip 80 Garden Office Ctr. Los ROBERT SWITZER Angeles 90066 Vega see ad p 116 1380 W. Midway Blvd. 9025 Maza Circle 213-871-0677 Fountain Valley 92708 Line: video equip RON BOWEN & ASSOCS. continued on page

THE STUDIO COMPACT

Micro-Trak's " Studio Compact " is the newest, of a group of four, fully equipped audio control centers Designed for the professional, the Studio Compact offers top line Micro-Trak components throughout. 740 Turntables, 303 Tone Arms, 500-AL Cartridges, a high quality dynamic mike, and your choice of one of three different four channel audio consoles For broadcast the 6444 stereo or the 6454 mono, for disco the 6440 stereo..... Best of all a "Studio Compact" with the 6454 console is only $1745.00. With other console choices slightly higher The Stu. o Compact Shown With Optional Accesspr See your Dealer or contact our Marketing Office MICRO-TRAK CORPORATION 620 RACE ST., HOLYOKE, MASSACHUSETTS 01040

Circle 199 on Reader Service Card 120 SEPTEMBER, 197 www.americanradiohistory.com Inside every Revox it's all Studer Capstan motor servo control board using advanced IC design to Separate spooling maintain speed accura- motors of high Sealed mains input cy to better than 0.2%, torque and low section and cabinet incorporating electron- weight construc- safety link socket. Fully electronically ic speed change. tion, stabilized power supply circuit. Capstan motor speed pick-up head. in power am- Irs (optional).

;tan motor of ted construc- Plug-in relays with self- t cool running, cleaning contacts, con- current con- trolling all functions .tion and wow flutter better and eliminating damage international from inadvertent mis- cast require- handling. Ls. Tape transport logic control circuit board. lue multi-bank .- switch unit, .ding on-off, Specially designed & spool size/ low distortion 120 on variations KHz bias oscillator ,e control. obviates multiplex interference. ssional glass- aycircuit board I integral gold- d switch con-

Plug-in audio input/ Plug-m record relay. output amplifiers

y Revox machine isStuder and Revox products without With a wow and flutter level ned and built by Studer equal in their respective fields. below broadcast standard re- ories in Switzerland and Consider the Revox A77 - a quirements plus a linear re- any to Studer standards. studio quality machine, com- sponse from 20-20,000 Hz at m conception to compon- pactly presented and offering 71/2 ips. (± 2 dB) and an ultra the Revox displays, the features unique in its price low noise level, the Revox A77 e meticulous attention to class, with total indifference continues to set the standard 3i1 and extraordinary pre- to minor fluctuations in mains by which the rest are judged. on that has made Studer supply voltage or periodicity.

EVWrite or call for further information: R OX 155 Michael Drive, Syosset, N.Y. 11791 (516) 364-1900; West Coast Office (213) 846-0500. For other countries: Revox International, Regensdorf 8105 ZH, Althardstrasse 146, Switzerland. c Arlmat k Intl national

Circle 200 on Reader Service Card MBER, 1976-BM/E 121 www.americanradiohistory.com 5765 Logan Suite 206 60 Wood lawn Rd. 4964 Fairmont Ave. THE SOURCE '76 Denver 80216 Berlin 06370 Bethesda 20014 303-623-6447 Line: audio components 301-933-3451 Line: video equip Micro-Trak see ad p 120 Line: full line video equip Broomfield 80020 RICHARD H. McLEAN/NEAL Vega see ad p 116 303-854-2003 OWENS, JR. Line: full line audio & video equip CONNECTICUT 1280 Blue Hills Ave. Ramko see ad p 44, 45 Bloomfield 06002 Micro-Trak see ad p 120 203-242-4242 FLORIDA JOHN B. ANTHONY Line: video proc. equip HP MARKETING 922 High Ridge Rd. Microtime see ad p 109, 124 2530 W. Church Ave. Stamford 06905 Littleton 80120 203-332-9202 NBS ASSOCIATES AUDIO VISUAL SERVICES 5484 Jet Port Industrial 303-794-8367 Line: full line audio equip P.O. Box 179 Blvd. Tampa 33614 Line: audio test equip ad p 98 106 Main St. Orban/Parasound see 813-884-1461 Orban Broadcast see ad p 128 Thomaston 06787 CO. Line: audio components McCLOUD & RAYMOND UREI see ad p 106 203-283-5959 2020 S. Pontiac Way Line: audio components ESE see ad p 119, 166 Denver 80222 AUDIOTECHNIGUES, INC. Tech Labs see ad p 173 303-756-1589 142 Hamilton Ave. BCS ASSOCS. INC. Line: audio equip Stamford 06902 940 N. Fern Creek Ave. Shure see ad p 83 203-359-2312 Orlando 32802 See ad p 175 305-896-4881 INC. INVERNESS MARKETING Line: full line audio equip, recording DISTRICT OF Line: measuring equip, DIV. OF CLIFF-JOHN accessories imported and domestic audio & video equip ELECTRONICS INC. COLUMBIA MCI see ad p 63 TFT see ad p 110 Bldg. 1-Suite 1 CEI.see ad p 117 14 Inverness Dr. East BURNS ELECTRONIC SECURITY Englewood 80110 INC. BALATON MARKETING INC. R.G. BEATTIE 303-770-2300 735 Route 5 P.O. Box 17435 6300 15th St. No. Line: audio components S. Windsor 06074 Washington 20041 St. Petersburg 33702 Tech-Labs see ad p 173 203-528-2186 703-471-1764 813-525-4206 Line: full line audio & video equip Line: audio equip Line: radio equipment PAR ASSOCS. Beyer see ad p 107 Collins see ad Cover 4 7305 Spring Ct. CONCORD COMMUNICATIONS Revox see ad p 121 Boulder 80303 DIV. F.T.C. BREWER CO. 303-499-4736 Auvitel Systems Corp. BRENNER CINE-SOUND P.O. Box 8057 Line: test instruments 176 Main St. 5215 Wisconsin Ave. N.W. Town & Country Plaza Marconi see ad p 135 Norwalk 06852 Washington 20015 Pensacola 32505 203-846-9575 Line: sound & film equip 904-433-7932 RIA CORPORATION Line: video & audio equip 430 Garland St. McBEE LABORATORIES Line: audio equip, transmitt Lakewood 80226 ENTERTAINMENT PRODUCTS 5151 Wisconsin Ave. N.W. Micro-Trak see ad p 120 303-238-2593 P.O. Box 11129 Washington, D.C. 20016 BROADCAST AUTOMATIO Line: TV broadcast equip Newington 06111 202-244-2345 5199 NE 12th Ave. CEI see ad p 117 Line: audio components Line: TV systems, equip Ft. Lauderdale 33308 Duca Richardson see ad p 137 Micro-Trak see ad p 120 CEI see ad p 117 305-776-4762 SCIENTIFIC SYSTEMS, INC. FRED LOCKE STEREO PROFESSIONAL PRODUCTS INC. continued on p Nurad offers antennas to meet all yo microwave broadcast requirements ELECTRONIC NEWS GATHERING STL's FIXED REMOTES MULTIPLE PICKUPS SPECIALS' 2 GHz 7 GHz 13 Description Model No. Gain' Model No. Gain' Model No. 0 Lightweight, Directional, Circularly Polarized 20DC1 10 70HC1 8 130HC2 Lightweight, Directional, Multi Polarized 20DC2 10 70HC3 8 130HC3 Omni Quad Array, Quad Polarized 200P1 13 700P1 13 Omnidirectional, Circularly Polarized 20001 6 70001 6 130001 Two foot Parabola, Circularly Polarized 20CR1 18 70CR1 31 130CR1 Two foot Parabola, Multi Polarized 20CR6 18 70CR4 31 130CR3 Four foot Parabola, Circularly Polarized 20CR2 25 70CR2 37 130CR2 Four foot Parabola, Multi Polarized 20CR3 25 70CR3 37 130CR4 GOLDENROD Circularly Polarized 20HE1 19 DUAL ROD Circularly Polarized 20HE2 22 Gain in db referenced to a like polarized isotrope

These, plus other antennas and related products, are now available from Nurad Why not let us help you with your microwave system?

2165 Druid Park Drive Baltimore, Md. 21211 (301) 462-1 Circle 201 on Reader Service Card

122 SEPTEMBER, 19 www.americanradiohistory.com Suggested user net Dual Ten Monitor $485

veryone makes Suggested user net - were trge monitors-but Triple Six lie leader in small screen units. Monitor $690 tchell Carlson gives you a definite advantage in small screen video )nitors with 9 different models to choose from, in 5", 6" and 10" screens. u one else offers such a wide selection. lgles, duals and triples combine compact size with Setchell irlson's well-known features. Like UNIT-IZED* 100% solid state cuitry, up front controls, regulated power supply, )nt panel screwdriver adjustments for !rtical linearity, height and focus. CGS C ELECTRONICS, INC. el more secure with Setchell Carlson. r A SUBSIDIARY OF AUDIOTRONICS CORPORATION AVE NW NEW BRIGHTON, MN. 55112 (612) f ade in America. 530 5th 633-3131

Circle 202 on Reader Service Card www.americanradiohistory.com Image -Ex Image Processor

Crispens T.V. Picture

Reduces chroma crosstalk

MICROT1ME Reduces visual noise by 3 db 'owe Ex

Corrects chrominance /luminanc

Standalone unit operates with al or TBC

Microtime 1280 Blue Hills Avenue Bloomfield, Connecticut 06002 (203) 242-4242 TWX 710-425-2390 MICROTIMI

Micro-Trak see ad o 120 305-764-7755 PROFESSIONAL THE SOURCE '76 Line: audio components REPRESENTATIVES HARRIS CO. Micro-Trak see ad p 120 709 N. Franklin St. 633 Shenandoah ESE see ad p 119, 166 Tampa 33602 Miami 33145 Line: full line audio & video products Ramko see ad p 44, 45 813-223-2911 305-854-2003 Line: camera lenses, full lin BROADCAST ENG. CO. GORDON LUND Line: audio equip video equip, video camera Box 14444 255 Whooping Micro-Trak see ad p 120 Loop video editors Ft. Pierce 33450 Ramko see ad p 44, 45 Altamonte Springs 32071 Line: audio products 305-831-8458 REPELECT L.P. HENCH CO. Line: transmitters, radio equip Box 7102 CONTINENTAL ELECTRONICS 9900 Richmond Ave. Tampa 33603 WHOLESALE St. CORP. SW 168th LYKES ELECTRONICS CORP. 813-227-5051 1620 W. 32nd Place 1800 N.W. 23rd St. Miami 33157 Line: audio & video equip, Hialeah 33012 305-251-4343 Miami miners Line: audio components Line: audio products 5426 W. Crenshaw Shure see ad p 83 Micro-Trak p Tampa see ad 120 Beyer see ad p 107 33622 Robins see ad p 163 Revox see ad p 121 813-886-6621 CONTROLLED DIST. Sound Technology see ad Line: full line audio & video equip 2922 N. Rd. 7 HENRY State R. JERRELL REYNOLDS & ASSOCS. Margate 33063 14018 West Parsley Drive MANREP CORP. 476 North A1A -Suite 1A 305-971-4950 Madeira Beach 33708 P.O. Box 4808 Satellite Beach 32937 Line: electronic components 813-391-8065 Miami Lakes 33014 305-773-4700 Electronic Devices see ad p 174 Line: radio and TV equip Line: audio components Line: audio components see ad p 92 CONTROLLED TECHNOLOGY INC. McMartin Micro-Trak see ad p 120 Tech Labs see ad p 173 HUTTO-HAWKINS-PEREGOY INC. 2513 Tortugas Lane MIDWEST SAVE PRODUCTIONS INC. P.O. Box 1277 Ft. Lauderdale 33312 TELECOMMUNICATIONS 281 Willowich Ave. Maitland 32751 305-587-2716 3331 N.W. 82nd Ave. Templeterra 33617 Line: full line audio & video equip 305-831-0256 Miami 33122 Line: audio components Line: audio equipment IGM see ad p 10 Line: audio & video equip Micro-Trak see ad p 120 Shure see ad p 83 FLAGLER RADIO CO. IMAGE DEVICES INC. JERRY NORDSIEK SOUTHEAST ELECTRONIC 1068 W. Flagler St. 705 1825 N.E. 149th St. Bowie Blvd. 1125 Rouselle St. Miami 33130 Orange Park 32073 Jacksonville 32203 305-373-6548 Miami 33181 305-945-1111 904-269-2544 904-356-3007 Line: audio comonents,p euiq p Line: video equip full line of audio/video 84 Line: video & audio equip Line: Micro-Trak see ad p 120 American Data Corp. see ad p 40 120 Vega see ad p 116 Micro-Trak see ad p ESE see ad p 119, 166 FLORIDA ELECTRONICS J&J ELECTRONICS PHOTOMART P.O. Box 15889 5855 Johnson St. 6237 S. Orange Ave. STEREO SONICS LABORATOI Orlando 32808 Hollywood Orlando 32809 117 Robin Road 305-293-4804 Line: video production switchers, 305-851-2780 Altamonte Springs 32701 Line: audio & video equip pulse & distribution amps, routing Line: video equip 305-831-2575 Line: audio components GRICE ELECTRONICS switchers, special effects generators ORBEX CORP. MIAMI ESE see ad p 1 19, 166 320 E. Gregory LAUDERDALE ELECTRONIC 9655 South Dixie Hgwy Robins see ad p 163 Pensacola 32501 LABS Miami 33156 Ramko see ad p 44, 45 904-434-2481 16 S.W. 13th St. Line: audio components Line: full line audio/video equip Ft. Lauderdale 33315 Micro-Trak see ad p 120 continued on p

124 SEPTEMBER, 19 www.americanradiohistory.com 'here's News Out There...

11 Farinon's Portable, You can plug in video monitors, or clamp- TRuency-Agile Microwave ers, or up to three sub-carrier channels. is It On The Air! You can run 500 feet of cable between the RF head and the FMT or FMR remote unit with- The new FV Portable Microwave system is out roll-off or equalization. ible for all bands from 1.99 to 13.25 GHz. And you get 1-watt output level from 6.875 'ou dial-tune to your operating frequency to 13.25 GHz, 5-watt output (optional 20-watt) le spot. There's no need for bench-work from 1.99 to 2.11 GHz, ±0.002% frequency 'e you set up a remote pick-up. No filter stability; 60-dB signal-hum ratio from dc to 10 election. You don't even need a screw- kHz, and 70-dB signal-noise ratio from 10 kHz r. to 5 MHz,

rrinon Electric, 1691 Bayport Ave., San Carlos, CA 94070, U.S.A. Tel. (415) 592-4120. Telex 34-8491. ... in Canada: Farinon Electric of Canada, Ltd., 657 Orly Ave., Dorval, P.O. H9P 1G1, Canada. Tel. (514) 636-0974. Telex 05-82-1893.

Fannon

Circle 204 on Reader Service Card .MBER, 1976-BM/E 125 www.americanradiohistory.com 2522 Tanglewood Rd. Ramko see ad p 44, 45 3203 Lanier Drive THE SOURCE '76 Atlanta 30033 Atlanta 30319 404-321-0980 GRADY DUCKETT SALES Line: full line audio & v Line: full line video equip P.O. Box 20967 Arlstocart see ad p 1 TECHNOLOGY MKTG. ASSOC. TFT see ad p 110 Atlanta 30329 SYSTEMS ENGINEERI 1010 E. Atlantic Blvd. CEI see ad p 117 404-451-3529 Box 49224 Pompano Beach 33061 Line: audio systems, components P.O. FRANK BENSON Atlanta 30329 305-942-0774 Tech Labs see ad p 173 Line: electronic components tubes 11520 Bowen Road 404-482-2446 INC. Amperex see ad p 11, 29 Roswell (Atlanta) 30075 ELECTRONIC EQUIPMENT Line: audio component 404-992-4490 526 Plaster Ave. N.E. Micro-Trak see ad p 1 WORLD ELECTRONICS, INC. Line: video heads, recorder com- Atlanta 30324 229 Sunny Isles Boulevard ponents 404-873-5841 TECHNICAL SYSTEM 2080 Peachtree Ct. North Miami Beach 33160 Videomax see ad p 3 Line: audio components & equip 305-949-8918 Stanton Magnetics see ad p 65 Chamblee 30341 BROADCAST SUPPLY OF 404-457-0426 Line: audio equip ATLANTA MCI see ad p 63 Line: audio equip 2971 Flowers Rd. S. Suite 170 FIDELICOM, INC. P.O. Box 80644 Orban/Parasound see WORLD WIDE PRODUCTS Atlanta 30341 Orban Broadcast see Chamblee Station P.O. Box 279 404-458-0815 UREI see ad p 106 30341 Miami 33168 Line: full line audio equip & supplies Atlanta 305-754-5475 404-458-3616 D. TUTTLE CALHOUN COMPANY test equip Line: audio components, equip, tape Line: audio equip, Marietta 30062 121 Forrest Ave. N.E. Sound Technology see ad p 24 404-433-1570 recorders Atlanta 30303 MCI see ad p 63 Line: video equip 404-659-0750 GRAY COMMUNICATIONS CVS see ad p 105 Line: video systems, audio equip, 132-38 Pine Ave. lighting equip Albany 31702 2128 Faulkner Rd. GEORGIA DEAN COOPER CO. Atlanta 30303 2387 Interstate 85, Suite 2 Line: audio & video equip, video Access Rd. systems HAWAII Norcross 30071 ADAMS & ASSOCS. Line: audio equip C. HARRISON ASSOCS. 830 W. Peachtree St. Beyer see ad p 107 6695 Peachtree Blvd. #107 Atlanta 30308 Revox see ad p 121 Atlanta 30341 BROADCAST SERVIC 404-881-9595 404-449-7696 2877 Kalakua Ave. Line: audio systems D & 0 SALES, INC. Line: audio & video equip Honolulu 96815 ComTec see ad p 114 ANIXTER-PRUZAN 3819 Oakcliff Industrial Court 808-533-3877 Vega see ad p 116 4303 Pleasantdale Rd. Atlanta 30340 Line: full line audio Atlanta 30340 404-448-1701 MILLAR ELECTRONICS INC. equip 404-449-6533 Line: recorders, equip P.O. Box 12137 Line: Sony studio video equip, full Tandberg see ad p 86 Northside Station JAMES CHANG line of CATV equip, cable con- Atlanta 30305 190 S. King St. GEORGIA BROADCASTING Honolulu struction accessories, tools, head 404-261-6160 Box 13646 808-531-2165 end, passives, test equip, power Line: audio equip Savannah 31406 Line: audio and video e supplies see ad p 83 912-354-4000 Shure Beyer see ad p 107 BCS ASSOCS. Line: audio components RADFORD ASSOCS. Revox see ad p 121

VIDEO SPOT ASSEMBLE "The VSA is a low cost alternative or back-up system to cart machines"

RECORTEC onoT PeOltrnelm

iI 1111 NI IN MI NM SE in 11111 IU U U iLr- LI U

The Video Spot Assembler is a special pur- ator time than conventional methods. hundred thousand dollars. pose editing controller that makes spot reel Before you submit your budget for an ex- The VSA is an electronic dream, assembly faster and easier. The VSA con- pensive cart, consider the VSA alternative. mechanical nightmare. Try it befoi trols two existing VTRs to produce multi- The VSA will accomplish most of the tasks are committed to a cart. Call or wt break spot reels using less VTR and oper- attributable to the cart at a saving of a few details.

RECORTEC, INC. 777 PALOMAR AVE., SUNNYVALE, CA 94086 TEL: (408) 735-8821 TELEX: 910 33

Circle 205 on Reader Service Card

126 SEPTEMBER, 197 www.americanradiohistory.com :t IONIC SYSTEMS, INC. ANCHA ELECTRONICS RAY R. HUTMACHER ASSOC. INC. 7442 N. Harlew gimana St., Suite 500 189 Gordin Street 7205 W. Pratt Ave. Chicago 60648 illteu 96813 Elk Grove Village 60007 Chicago 60631 312-774-6440 44-3848 312-437-7712 312-631-3248 Line: test instruments Mill line of audio/video equip Line: audio components Line: audio components, communi- Marconi see ad p 135 ,setIon see ad p 37 Ramko see ad p 44, 45 cations equip; tape recorders Ramko see ad p 44, 45 CO. A/V CENTER BOB MUNZER BOBER see ad p 83 St. 6160 W. Oakton St. Shure 233 W. Hill Ave. 111c)unapuna Robins see ad p 163 *Xi 96802 Morton Grove 60053 Glen Ellyn 60137 -ral -3207 Line: audio/video equip JOHN F. KEENEN & CO. 312-469-6200 will line audio equip B.W. ASSOCIATES 187 Berteau Ave. Line: video equip Data Corp. see ad p 40 obsee ad p 163 55 West Erie, Suite 1E Elm Hurst 60126 American ate ee ad p 83 Chicago 60611 312 -279-5999 owe ad p 116 312-266-2086 Line: transmitters, equip THEODORE PAPPAS & ASSOC. IA BROADCAST ASSOCS. Line: audio components M. LANG 5218 W. Diversey Ave. Mix 1344 UREI see ad p 106 Hoffman Estates 60195 Chicago 60639 96807 CENTER VIDEO SYSTEMS 312-882-3336 312-685-2338 8-3991 5800 W. Fullerton Ave. Line: video equip Line: audio equip isboadcast equip Chicago 60629 CVS see ad p 105 Orban/Parasound see ad p 98 Adeve Assocs see ad p 39 312-889-8866 Orban Broadcast see ad p 128 Line: video equip LA SALLE AUDIO Vega see ad p 116 11ECTRONICS 740 N. Rush St. St. 60611 Sing CRIMSON ENGINEERING CO. Chicago LTD. 312-266-7500 PRO AUDIO P.O. Box 286 P.O. Box 730 tiles 96813 Line: full line of audio equip Glenview 60025 Barrington 60010 181-6787 312-724-1780 )esidio equip LOREN F. GREEN ASSOC. 312-381-4559 Line: audio equip equip Igoe ad p 106 5218 W. Diversey Line: audio Tech Labs see ad p 173 Chicago 60639 Beyer see ad p 107 tad ASSOCS. INC. see ad p 121 VICTOR DUNCAN INC. 312-286-6824 Revox Ave. S. -,8Cyndale 676 St. Clair St. Line: sound equip; test equip tifiJ 96813 Chicago 60611 QUALITY CONTROL SOUNDS .<113-7655 MEADE ELECTRONICS CO. INC. Line: photo equip & supplies isiteasuring equip 3100 S. 25th Street 1 N. 44th St. Broadview 60153 Belleville 62223 If ID ad p 110 GORDON DUVALL CO. 312-278-2800 Line: audio components 6838 N. Ottawa St. Line: audio components Micro-Trak see ad p 120 Chicago 60631 ESE see ad p 119, 166 312-774-5115 30IS Line: audio components, full line MILAM AUDIO CORP. IRVING ROSE ASSOCS. radio equip 1504 North 8th Street 137 Ridgeway Ave. Pekin 61554 Skokie 60076 ALYN E.M.D. 309-346-3161 312-674-6790 913runer St. 3722 W. North Ave. Line: audio components, equip; Line: audio and video equip Ids 60521 Chicago 60647 recorders Micmix see ad p 172 :4116-0495 312-486-0062 MCI see ad p 63 Sound Technology see ad p 24 ,too Air) & broadcast equip Line: electronic components xlillr Audio see ad p 173 Electronic Devices see ad p 174 KENNETH MEYERS continued on page 128

I E W INTELLIGENT VTR Installing R-MOD is like a college education for your old VTR"

MIMI .11. 11110111

R-MOD (Red-Servo Modification) offered by the latest, higher priced VTRs. ful life o your old VTRs. es your quad VTR handle tape with If the cost and variety of new VTRs is Before you submit a budget to equip your ligence. R -MOD provides gentle tape causing you to postpone a decision, yet you operation with the new VTRs, consider ling, fast lock-up and fully automated wish to have up-to-date quads, R-MOD is R-MOD as an alternative. It may give ation including end-of-tape sensing. It an economical investment that will pay off those quads enough intelligence to be ides all the desirable transport features rapidly and at the same time extend the use- worth keeping. Call or write for details.

COR TEC, INC. 777 PALOMAR AVE., SUNNYVALE, CA 94086 TEL: (408) 735-8821 TELEX: 910 339 9367

Circle 206 on Reader Service Card BER, 1976-BM/E 127 www.americanradiohistory.com Indianapolis 46204 Crawfordsville 47933 video equip, video ca THE SOURCE '76 Line: audio components 317-362-6348 sories, video editors Micro-Trak see ad p 120 Line: electronic components, tubes Amperex see ad p 11, 29 SWIDERSKI ELECTRONICS HUTCH AND SON, INC. 5456 N. Milwaukee Ave. 300 N. Main Street RA-DIS-CO, INC. KANSAS Chicago 60630 Evansville 47711 814 N. Senate Ave. 312-775-3232 812-425-7155 Indianapolis 46202 317-637-5571 Line: audio & video equip Line: electronic components B.C. ELECTRONIC SA Ramko see ad p 44, 45 Electronic Devices see ad p 174 Line: full line broadcast equip 11495 Lenaxa Dr. Ramko see ad p 44, 45 INDIANAPOLIS VIDEO Olathe 66061 ZIMMER SALES, INC. 6226 LaPas Trail 913-888-6680 P.O. Box 723 Indianapolis 46268 Line: electronic corn 1984 No. Brighton Lane 317-293-3313 IOWA Amperex see ad p 11, Hoffman Estates 60172 Line: video equip 312-885-3438 BEAMS INC. BEAMS INC. 87th Terrace Line: audio equip, recorders JACKSON KEITH AND 9416 W. 2318 (14B) Harding Rd. Mission Tandberg see ad p 86 INC. Shawnee 66212 ASSOCIATES, Des Moines 50314 P.O. Box 65 913-341-7744 515-255-1148 Line: audio equip 365 Walnut Line: audio equip Zionsville 46077 FOREST ECKHOFF 318-873-4079 K&M ELECTRONICS 1823 Monrovia INDIANA Line: audio and test equip 1910 Ingersoll Lenexa, 66215 Sound Technology see ad p 24 Des Moines 50309 913-888-0127 Line: full line video equip ALLIED BROADCAST EQUIP. MAISH SALES Line: transmitters, radio Box 186 124 S. 6th St. P.O. LORENZ SALES INC. 500 Madison Street A.K. ELLIOTT CO. Richmond 47374 Suite 302 Mulberry 46058 P.O. Box 6129 317-962-8596 Executive Plaza Line: audio equip for radio 217-296-2322 Leawood 66206 Cedar Rapids 52402 913-649-0654 See ad p 150 Line: audio and test equip 319-393-6912 audio ESE see ad p 119, 166 Sound Technology see ad p 24 Line: products Line: electronic components, tubes see ad p 107 Ramko see ad p 44, 45 Beyer MEADE ELECTRONIC CO. Amperex see ad p 11, 29 Revox see ad p 121 1825 Summer St. AUDIO EQUIPMENT CO. Hammond 46320 MASTERTONE CO. ENGINEERING SERVIC 520 E. Indiana Ave. 219-932-2100 1105 Maple St. 7830 State Line Rd. South Bend 62301 Line: audio & video products West Des Moines 50285 Praire Village Line: audio components ESE see ad p 119, 166 515-274-2551 913-694-4000 Micro-Trak see ad p 120 Line: microwave equip MEPCO/ELECTRA Line: full line audio equip; transmitters, monitors J.O. GOETZ SALES P.O. Box 2207 Micro-Trak see ad p 120 WILLIAM MENEZES & 5941 Brendonridge N. Fort Wayne 46802 9604 Nall St. Indianapolis 42226 219-432-8567 P.O. Box 7070 317-545-5638 Line: electronic components, tubes VIDEO COMPONENTS 3116 Dearborn Ave. Overland Pk 66207 Line: audio & video equip Amperex see ad p 11, 29 Sioux City 51104 913-649-2680 GRAHAM ELECTRONICS DALE A. MILLER & ASSOC. 712-276-0404 Line: audio and video eq 133 South Penn. St. 124 E. Main St. Line: camera lenses, full line CCTV continued on pa OPTIMOD FM It's the only way to go!

If you demand uncompromised modulation THD is astonishingly low: in operate mode control and natural, accurate, transparent it's typically below 0.05% midband, and audio quality, then Optimod-FM stands alone. 0.15% even at 50 Hz. The sophistication of Optimod is a system: compressor, limiter, the engineering and the attention to subtle and stereo generator are combined in one psychoacoustical details in the processing package. We have reduced loudness-robbing makes Optimod's output sound exactly like overshoots in the audio lowpass filters before its input for most program material. Optimod the stereo generator to less than 3%. Unlike can be listened to for hours without fatigue, some new competing limiters which apply and can be an important factor in your sta- first-order correction and then claim that tion's quarter-hour maintenance ratings. they have dealt with the overshoot problem, Find out more reasons why the original Optimod offers absolute modulation control is still the greatest: call (800) 227-4068 that works with all program material. toll-free for literature and applications infor- Because of this control, we can apply mation. optimum amounts of clipping without worry- ing about the overshoots usually produced. The amount of clipping is constantly moni- oibcin / broadcast tored and controlled so that it never pro- Eric Small & Associates duces audible distortion. In contrast with Marketing and Sales Agent ultra-fast attack time limiters now appearing, 680 Beach Street, Suite 315 Optimod sounds solid and natural without San Francisco, CA 94109 the shaky, unnaturally modulated quality that (415) 441-0666 EI ultra-fast attack times give to program dy- A Product of Orban Associates Division, namics. And Optimod's steady-state system Kurt Orban Company, Inc.

Circle 207 on Reader Service Card 128 SEPTEMBER, 19 www.americanradiohistory.com 'iou may not know that Cetec is one of the major producers of radio broadcast equipment. Maybe you should.

Cetec Corporation's major divisions in the broadcast equipment business are now united to meet your expanding needs! The specialists that make up the Cetec Broadcast Group are: Cetec Schafer. The World renowned leader in radio automation, with a tradition of quality and rugged q, dependability. Schafer manufactures a wide line of

nLomation for every format and station size . . . all with features that you won't find anywhere else. Cetec Sparta. The people with a new generation of ansmitters including both AM and FM all-solid state models. Sparta is also the recognized value leader in

= radio consoles, with a size to fit every application and every budget. NNH1Qf,

MI9 ES at Jampro. The antenna specialists with circular FM - 0 -0 itimas for every power level . .. each with performance specifications second-to-none. Jampro is now the company with a circular TV antenna for either VHF or UHF, too! The Cetec Broadcast Group now has a nationwide tonork of factory-direct District Managers who are ready ct,help you choose the right equipment for your needs. 0) of them is close to you. For his name, or for specific rduct information, call (805) 968-1561, or write: Cetec Broadcast Group, 75 Castilian Drive, Goleta, California 93017.

Cetec Broadc / NZ The Broadcast Divisions of Cetec Corporation 75 Castilian Drive, Goleta, California 93017 Telephone: (805) 968-1561

ss /# e A6ce aye CBG MAJOR Circle 208 on Reader Service Card EMBER, 1976-BM/E 129 www.americanradiohistory.com C.M. BEVERAGE THE SOURCE '76 10104-M Woodlake Drive Cockeysville 21030 301-666-7059 PHILLYSTRAN° Tandberg see ad p 86 Line: radio equip p 24 Sound Technology see ad Collins see ad Cover 4 .. manufactured from Vega see ad p 116 impregnated aramid fiber EASTERN INST. CORP. 11700 Old Columbia Pike S Silver Spring KENTUCKY 301-622-4200 GUYS THAT Line: microwave equip ROBERT HALVORSON BRUCK L. DAWSON 4000 Thornapple 7105 Greenlawn Rd. Chevy Chase 20015 OUTLAST Louisville 40222 301-654-1680 502-426-4022 Line: audio equip; audio THE TOWER Line: video equip, cameras, lenses transmitters SIGHT & SOUND INC. HAYDEN ASSOCS. Box 1644 16 Decatur Ave. Louisville 40201 Annapolis 21404 non-interference 502-584-5535 202-296-6059 Line: audio & video equip, CCTV Line: measuring equip, mon systems minimum stretch HABCO ELECT. 603.Alleghany Ave. Towson 21204 maintenance-free 301-825-9637 LOUISIANA Line: audio, video compone Tech Labs see ad p 173 If you are looking for PIERCE AUDIOMEDIA ASSOCS. PHELPS INC. 8204 Felton St. Suite 105 P.O. Box 29264 Silver Spring 20910 guys that eliminate the New Orleans 70189 Line: video equip, full line RFI 504-586-0140 usual problems of Line: audio components, radio PROFESSIONAL PRODUCTS transmitters 4864 Fairmont Avenue . . . and guys that never ESE see ad p 119, 166 Bethesda 20014 Micro-Trak see ad p 120 to be replaced 301-657-2141 need INTERSTATE SCHOOL SUPPLY Line: full line video products Vega see ad p 116 2918 Neal Dr. during the life of Pineville 71360 Unimedia see ad p 136 1620 Clio St. RECORDING CONSULTANT the tower, then New Orleans 70131 7912 Georgia Ave. 1835 Front St. Silver Spring 20910 PHILLYSTRAN is Baton Rouge 70821 301-565-2270 504-387-5131 Line: full line of audio equip the answer. Line: audio & visual equip SELINGER & ASSOCS. I LYKES ELECTRONICS 401 Southlawn Lane 3308 Orleans Ave. Rockville 20850 Cable assemblies can New Orleans 70119 Line: audio & video equip Line: audio & video equip S&S ASSOCS. be made to any length, MAR ELECTRONICS 7720 Wisconsin Ave. 3521 E. Louisiana State Dr. Bethesda 20014 terminated and Kenner 70062 301-654-1434 504-729-4524 Line: test instruments proof-loaded. Line: full line audio & video equip Marconi see ad p 135 Micro-Trak see ad p 120 TAUB SALES W.J. MONROE 12810 Gaffney Rd. Call or write for 8427 Ridgemont Drive Silver Spring 20904 Pineville 71360 301-622-0300 318-640-3412 Line: audio equip additional information. Line: radio equip BILL WESTON tYr Collins see ad Cover 4 15932 Shady Grove Rd. PHILLYSTRAN / Gaithersburg 20760 proprietary resin 301-948-0460 impregnation process of Line: video proc amp switch Philadelphia Resins Corp. MAINE DWIGHT WILCOX 5504 Waterway -41111111 ,if DOW HEBERT & PLOURDE Rockville 20853 di P.O. Box 969 301-460-1454 Downtown Mall Line: video equip vl Carribou 04736 American Data Corp. see ad Line: audio components Micro-Trak see ad p 120 WILTRONIX INC. .14 5504 Waterway Rockville 20853 301-460-1454 MARYLAND Line: broadcast equip & acc MCI see ad p 63

ASSOCIATED SALES REPS. PHILLYSTRAN' 8706 Wilson Ave. Baltimore 21234 MASSACHUSETTS 301-661-2888 MFEll AHD coksue Line: audio equip PHILADELPHIA RESINS CORPORATION BARTLETT ASSOCIATES, INC. CRAMER ELECTRONICS 4405 East-West Highway 120 Hampton Ave 20 Commerce Drive, Montgomeryville, Pa. 18936, U.S A. Bethesda 20014 Needham 02194 215/855-8450 Telex: 846-342 Cable: PHILRES MMLL 301-656-3061 617-449-2100 RI Line: video equip, switchers Line: CCTV systems Circle 272 on Reader Service Card SEPTEMBER, 1976-1 www.americanradiohistory.com 4NREEN Line: audio equip, video equip; Of nghom Rd. camera lenses )1107610 >;3-8300 VALLEY CINEMA/VALLEY SOUND yt lectronic tubes, components 20 First Ave. loll Electric Valve see ad p 13 Chicopee 01020 THE WILKINSON Line: audio components 10 HANLEY AUDIO Micro-Trak see ad p 120 !,11 St. eitdge 02139 V.F. SALES, INC. AM2500B 2.5 KW 181 Worcester udio components Rd. Route ilinrrak see ad p 120 #9 Natick 01760 illIRINGTON SALES CO. 617-237-6544 AM BROADCAST e St. Line: audio & video products Of 02193 Orban/Parasound see ad p 98 V5-5323 Orban Broadcast see ad p 128 TRANSMITTER as udio equip UREI see ad p 106 Irg see ad p 86 WRIGHT RADIO CO. SIIIA SOUND 329 East St, FEATURES elierine St. Hingham 02043 19 ter 01608 Line: audio components Solid State Modulator Driver udio components Micro-Trak see ad p 20 Solid State Exciter an,"rak see ad p 120 Only One Tube Type - (4) 4-1000A IRIAL COMPONENTS R MICHIGAN Variable Vacuum Capacitor Tuning ft )stop Rd. Motorized Variable Capacitor Loading raham 01067 R.A. ALBRECHT & COMPANY Low Distortion, High Level Modulation ,6i.5-3854 P.O. Box 470 yB udio components 429 Walnut Blvd. Accessible Drawer Construction ,en-rak see ad p 120 Rochester 48063 Solid State Timing Circuits IT4TATE RENTAL SERVICE 313-652-2520 Self-Testing Silicon Power Supplies ory St. Line: audio components, test equip Al 02130 ESE see ad p 119, 166 Automatic Recycle Sound see au udio equip, components Technology ad p 24 Simplified PA Tuning - Only two controls .arl."rak see ad p 120 AUDIO DISTRIBUTORS Double Duty Plate & Modulation 2342 Division Ave. S. .1.4110N ASSOCIATES Transformers 8 .;den St. Grand Rapids 49507 iSXay 02181 616-452-1596 Pretuned at Customer's Frequency Line: full line of radio equip "Ft 5-3977 (optional) udio equip Ramko see ad p 44, 45 Power Cutback me tee ad p 107 ESE see ad p 119, 166 Designed for Remote Control Micro-Trak see ad p 120 )6. see ad p 121 for Ease of Service Cetec Broadcast see ad p 129 Ample, Roomy Cabinet DRP. Cetec Audio see ad p 102 Completely Metered a tvale Ave. Uses Standard Parts with Original 110 3M 02180 CHAMPAGNE SALES CO. 24001 Southfield Rd. Suite 102 Maker Numbers an st instruments Southfield 48075 ee ii see ad p 135 313-354-0270 audio & video equip, trans- CORP. Line: it;;YSTEMS mitters re pel St. &/ 02160 COWIE ASSOCIATES INC. 8.: 3-6881 1174 E. Big Beaver Rd. ae ill line audio & video equip Troy 48084 p; t.3 ad p 117 313-689-7252 of /LABS Line: audio equip mbridge St. Tandberg see ad p 86 se 02134 VICTOR DUNCAN INC. Of 2-0600 1 1043 Gratiot Ave. le udio components, radio equip Detroit 48213 ifs- see ad p 44, 45 Line: photo supplies & equip .obtie ad p 119, 166 woo frak see ad p 120 H.M. DYER ELECTRONICS Obi McCABE 2982 Wixom Road ,.tri Terrace Milford 48042 Ol 3 02081 313-478-2157 3-6736 Line: time stds, audio & video prod- Ie udio components, test equip ucts rtr Technology see ad p 24 Computer Image see ad p 47 ComTec see ad p 114 TECHNICAL SALES CO TFT see ad p 110 CEI see ad p 117 eat Plain Ave. ESE see ad p 119, 166 tm 02192 3. 4-4780 J. MALCOLM FLORA INC. .te udio equip P.O. Box 201 111see ad p 83 Plymouth 48170 313-453-4296 107 PIPER & ASSOC. Line: audio equip 4 sh St. Shure see ad p 83 X trn 02192 9-1144 GENERAL TELEVISION NETWORK )udio equip 13225 Capital Avenue ;ee ad p 116 Oak Park 48237 313-548-2500 V ('S MUSIC & SOUND PROD. Line: audio components -t lain St. ESE see ad p 119, 166 ield 01103 11. GROG iudio components R.P. HERMES CO. ELECTRONICS, INC. Trak see ad p 120 9600 Whittien St. ALENTI Detroit 48224 P.O. BOX 738 TRAINER, PA. 19013 idle Club Rd. 313-886-4567 audio & video equip TELEPHONE (215) 497-5100 Is ton 02173 Line: .1-0089 continued on page 133 Circle 210 on Reader Service Card EMBER, 1976-BM/E 131 www.americanradiohistory.com MARTI ...THE NAME TO REMEMBER . . . STEREO RADIO STUDIO-TRANSMITTER LINKS REMOTE PICKUP INTER-CITY RELAY 150 - 450 MHZ Stereo - Mono 950 MHZ FM - AM PARADES SPORTS RECORD HOPS NEWS COMMON: THIS EVENT

SUPPER C RESTAUF SPACE RELIGIC SPECIAL EVENTS OPEN RPU STL Transmitter Transmitter HOUSES SALES WATE'; f CARNIVALS The Stereo STL with RESERVED FAIRS "Built-in Backup." $975.00 (150 MHZ) $1145.00 (450 MHZ) FOR NEW Dual Channel System (Stereo) $4160.00 FEATURES: All Solid-State Direct FM PA Single Channel System (Mono) $2290.00 lator Broadcast Quality - Continuous I Four Audio Mixing Channels Antenna or Transmission line cost not included. Plug -in M RMC-20 lar Construction I.F. Crystal Filter Taut Meters FEATURES: All Solid-State Direct FM Modula- tor Field Proven Varactor Final Plug-in Mod- Radio Remote Pickup Equipment is veru ular Construction Solid-State Ovens Hi-Ac- DIGITAL dependable and an entree to profitable r curacy Crystals broadcasting. That is the acclaim given to A RPU Equipment by American Radio Broadcas Why STL? "How did we ever operate a radio station REMOTE out it?", is the comment most often heard 1. No "lost air" time due to cut, wet or elec- equipment has been purchased and put trically charged telephone lines. service. 2. Better Sound Quality Than a Class AAA telephone line. The progressive minded, community spi CONTROL broadcaster, 3. EVENTUAL COST REDUCTION in operating can find many uses for Re expense. Pickup Equipment. He will do many mon motes is 4. Complete control of entire broadcast system. than he presently doing, simply SYSTEM cause the equipment is available at a morn Why Dual Channel? notice. To coin an old cliche, "It doesn't co it pays." 1. A Dual-Channel costs less than a Composite. 2. Better Reliability than a Composite. "Built in Backup." 3. Greater Channel Separation than a Composite. Add Color to 4. Less Signal Drive Required to Receivers means additional system Fade Margin. WRITE Your 5. Less Test Equipment Necessary and more Positive System Diagnosis. Remotes . . . 6. Stereo Generator is away from Studio and OR Unauthorized Tampering. CALL 7. Stereo Generator and Broadcast Transmitter PORTABLE Compatibility without Interface. BROADCAST 8. Having a Dual-Channel STL is like having a FOR DETAILS Spare Link. REMOTE PICKUP 9. Two Remote Control and Two Sub-Carrier TRANSMITTER Capability. Model RPT-1 Why MARTI? $495.00 (150 MHZ) 1. Channel Separation more than 65 db. FEATURES: Portable operation on intern 2. Channel Response matched to 0.25 db. chargeable nickel-cadmium battery. Total v. 3. Distortion less than 0.5%. only 51/4 lbs. All Solid-State Built-in b 4. All Solid State. charger Dual frequency operation (One c 5. A Simple, True Direct FM Plug-in Modulator. included) Meter indicates battery con 6. Complete accessibility to modules without re- and modulation Whip antenna mounte moval from rack. rectly on unit Broadcast-quality Como 7. The Marti System Delivers Top Performance Limiter handles toughest pickup with Transmitter manufacturer's Stereo Gen- remote tions Two microphone (one pc erator. inputs talk) and one Hi-Level input each with in 8. Marti STL Systems Log over TWO MILLION ual mixing gain control (2,000,000) Broadcast Hours each Year. 9. AVAILABLE FROM STOCK. COMPLETE LINE OF ACCESSORIES AVAI '

P.O. BOX 661 1501 N. MAIN MARTI a 8C1L7E/1364U5R. N91%3 TEXAS 76031 Circle 211 on Reader Service Card 132 SEPTEMBER, 197 www.americanradiohistory.com JAYNUS ASSOCS., INC. SKOR SOURCE '76 MINNESOTA 10700 Lyndale Avenue S. 1821 University Ave. Minneapolis 55420 St. Paul 55104 612-884-1700 612-645-6461 jpIHILL JOHN E.M. ANDERSON CO. Line: broadcast equip, transmitters Line: audio products dp, Hartwell 5231 Humboldt Ave So. Vega see ad p 116 g Heights 48077 Minneapolis 55419 '9-6320 612-823-6459 K&M ELECTRONICS 'adio equip Line: audio components, equip 7360 Ohm Lane SOUND 80, INC. lips see ad Cover 4 Modular Audio see ad p 173 Minneapolis 55435 2709 E. 25th St. Minneapolis 55406 SOUGHTON WILLIAM E. BAIRD 612-835-3080 :dgeland 6317 Aldrich Ave. Line: full line audio & video equip 612-721-6341 audio components, equip; Dak 48073 S. Minneapolis Amtron see ad p 168 Line: 55423 accessories 9-6679 612-861-6228 recording MCI see ad p 63 5 o audio equip Line: video proc. equip, TBCs KODO ASSOCIATES, INC. :ow see ad p 107 Microtime see ad p 109, 124 8100 Penn Avenue S. Ape, see ad p 121 D&L BROADCAST SERVICES Minneapolis 55431 !talT MILSK CO. 3325 Flag Circle N. 612-881-1255 Telegraph Rd. Minneapolis 55427 Line: audio components, equip Sound Technology see ad p 24 I8 eld 48075 612-545-3372 MISSOURI it 2-6660 Line: complete line audio & video udio components equip $411 see ad p 163 J.L. LITTLEJOHN EMMONS ASSOCS., INC. 200C West Branch Road ALEXANDER ELECTRONICS INC. 40 RICE 10700 Lyndale Ave. Maple Plain 55359 1820 Wyandotte Street oft ak Park Drive S.E. Minneapolis 55420 612-479-2633 Kansas City 64108 Mai Rapids 49508 612-881-1118 Line: radio equip 816-474-6656 CSi 5-5529 Line: full line video equip Collins see ad Cover 4 Line: audio and video equip ideo equip Duca-Richurson see ad p 137 Unimedia see ad p 136 Kw ad p 59 TFT see ad p 110 R.C. SALES 7127 Willow Rd. ANIXTER-PRUZAN r)UOOD SCROGGS CO. FMI/MAGNATECH CO. Maple Grove 55369 9449 Aerospace Dr. -E..rbor Hills Rd. 3601 Park Center Blvd. 612-425-5543 St. Louis 63134 n 49201 Minneapolis 55416 Line: audio products 314-423-9555 IT; 0-1170 612-920-6677 Beyer see ad p 107 Line: Sony studio video equip, full udio components Line: audio components & equip. FM Revox see ad p 121 line of CATV equip, .abs see ad p 173 monitor equip, transmitters headend, passives, test equip, power supplies Micro-Trak see ad p 120 )111:0 INC. SIEDARE ASSOCS. BEAMS, INC. Ave. Ave. 'bar Woodward MEL FOSTER CO. INC. 8836 7th 689 Craig Rd. -06 nt Ridge 48069 7389 Bush Lake Rd. Minneapolis 55427 St. Louis 63141 7. 7-4771 Edina 55435 612-545-5663 314-649-1060 pc .udio products 612-835-2252 Line: audio components, tubes. Line: audio equip tlit,'Parasound see ad p 98 Line: audio equip electronic components vItt,Broadcast see ad p 128 Shure see ad p 83 Amperex see ad p 11, 29 continued on page 134

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MEMBER, 1976-BM/E 133 www.americanradiohistory.com 816-443-2080 3050 Sheridan St. JERRY CUDLIPP THE SOURCE '76 Line: radio equip Las Vegas 89102 24 Addison Terr. Collins see ad Cover 4 Line: lighting equip Old Tappan 07675 212-947-8031 DAVID BEATTY STEREO TV ENGINEERING Line: video heads, corn 1616 Westport Rd. 519 Rudder Rd. Videomax see ad p 3 Kansas City Fenton 63026 NEW HAMPSHIRE Line: audio components 314-343-5605 Micro-Trak see ad p 120 Line: broadcast equip TELECOMMUNICATIONS SYLVAN GINSBURY L McMartin Industries see ad p 92 SERVICES SYSTEMS Queen Anne Rd. COMMUNICATIONS Thomson-CSF Labs see ad p 22 P.O. Box 141 Teaneck 07666 INC. Broadcast Electronics see ad p Merrimack 03054 Line: audio components 1001 Perry Ave. 162 603-889-3001 Micro-Trak see ad p 1 63701 Cape Girardeau Duca-Richardson see ad p 137 Line: full line of audio/video equip 314-334-6097 Line: audio components, full line radio equip H.M. HOLZBERG ASS Wilkinson see ad p 131 NEW JERSEY P.O. Box 322 NEBRASKA Totowa 07511 KSW ASSOCIATES 201-256-0455 7546 Troost Ave. DON S. JONES BI STATE MARKETERS Line: audio equip, pr Kansas City 64131 3524 S. 104th Street 753 Bergen Blvd. mation, video switchers, 816-363-5651 Omaha 68124 Ridgefield 07657 monitors, char gener Line: audio components 402-397-2866 201-943-5888 mitters, STL, microwave Robins see ad p 163 Line: radio equipment, video Line: audio components TFT see ad p 110 McMartin see ad p 92 Robins see ad p 163 Nurad see ad p 122 CO ComTec see ad p 114 FORRISTAL-YOUNG SALES FLOYD CHURCHILL INC. K&M CEI see ad p 117 ELECTRONICS P.O. Box 43 7110 Oakland Ave. St. 120 S. 41st 50 Upland Way Louis 63117 St. Omaha 68131 Haddonfield 08033 314-645-2360 402-551-7600 609-429-7871 LANDY ASSOCS. Line: audio equip Line: video equip Line: audio components 12 Buxton Rd. Shure see ad p 83 Tech Labs see ad p 173 Cherry Hill 08003 SCIENTIFIC SYSTEMS, INC. 609-424-4660 PAC Lincoln 68505 COMOUIP INC. Line: audio consoles, 12710 2nd St. 402-467-2900 366 S. Maple Ave. Grandview 64030 equip Line: video equip, switchers Glen Rock 07452 Datatek see ad p 8 314-731-2331 201-444-3800 Computer Image see ad Line: full line broadcast equip VID-A-COMM SYSTEMS Line: video & audio equip see ad p 135 Marconi 2079 Fourth Ave. ELDISERCO PACER CORP. Lincoln 68508 LA SALLE AUDIO 12 Estal Place 11221 E. 76th St. Line: video equip P.O. Box 373 Greenbrook 08812 Teaneck 07066 Raytown 64138 201-968-0344 Line: video equip 201-692-0010 Line: audio and broadcast products Line: full line of audio eq J.C. SHIDELER NEVADA Orban/Parasound see ad p 98 Route #1, Box 217B Orban Broadcast see ad p 128 Oak Grove 64075 CINEMA SERVICE OF LAS VEGAS UREI see ad p 106 continued on page RVS10~4 and R1/510~41? The newest members of the Ross family are now available.

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160 DUNCAN MILL ROAD MARKETED NTR071 L IMITED EXCLUSIVELY DON MILLS, ONTARIO, CANADA M3B 1Z BY (416) 444-8497 4 Circle 213 on Reader Service Card 134 SEPTEMBER, 197 www.americanradiohistory.com 44444 44444

mi automaticTVmonitoring sets free the engineers

Time was when highly trained transmission signal from five separate inputs. Comparison engineers had to waste their brains (and their with pre-selected limits is continuous, and an time) watching a battery of waveforms and 'out of limits' fault can initiate executive action pictures - instead of concentrating on work by automatic switching to standby, with remote more worthy of them. alarm indication and simultaneous data Now the TV monitoring scene has been transmission of fault location. Up to 24 transformed. For TF2914 Insertion Signal parameters can also be measured manually by Analyser, TF2915 Data Selector together form means of push-button selection and a self- THE FIRST COMMERCIALLY AVAILABLE AUTO- contained digital voltmeter. Versions are MATIC TRANSMISSION MONITORING SYSTEM. available for all standards including the In conjunction with a test line signal generator N.T.C.#7. Systems are now operating in ten and inserter (such as mi TF2913), it will countries. Applications include broadcast automatically cycle through the measurement monitoring, common carriers and satellite of all the important parameters of the test line operations. Call mi and discuss your application. 0 MARCONI INSTRUMENTS DIVISION OF MARCONI ELECTRONICS INC. 100 STONEHURST COURT. NORTHVALE, NEW JERSEY 07647 TELE PH ONE: (201) 767-7250 TWX 710-991-9752

747R-3 Circle 214 on Reader Service Card www.americanradiohistory.com Grand color monitors... THE SOURCE '76 NEW YORK

L&M ASSOCS. ANIXTER-PRUZAN Great dollar savings! 511 Victor St. 180 Dupont St. Saddle Brook 07662 Plainview 11802 201-843-8700 516-822-8585 Line: test instruments Line: Sony studio video e. Marconi see ad p 135 line of CATV equip, ca MERRILL LENT struction accessories, tool end, test P.O. Box 189 passives, equip, East Hanover 07936 supplies 201-887-4849 AUDIO-VIDEO CORP. Line: audio & video equip, char gen 55 Delaware Ave. Delmar 12054 BERNARD MUNZELLE 518-439-7611 6 Kilmer Rd. Line: full line of audio/vide0 Edison 08817 ESE see ad p 119, 166 201-985-3760 Line: video equip AURORA COMMUNICATIO 408 W. 57th St. NILESCO INTERNATIONAL LTD. New York 10019 382 Springfield Ave. 212-541-7040 Summitt 07901 Line: lighting equip Line: audio components Micro-Trak see ad p 120 BACH SALES 4 Longview Place OPTIMEDIA SYSTEMS INC. Great Neck 1080 Rte. 46 212-233-3300 TRINTRON PLUS PICTURE TUBE BLUE-GUN ONLY A-B VIDEO SELEC- Clifton 07013 Line: sound systems 201-777-7600 TION EXTERNAL SYNC INPUT TALLY LIGHT FRONT ACCESS COLOR Line: audio & video products DAVID BAIN ASSOCS. BALANCE. P.O. Box 1014 SHEA SALES Port Washington 11050 OPTIONS: 522 Prospect Street 516-883-4818 Maplewood 07070 Line: audio equip, trans PULSE-CROSS UNDERSCAN RACK SLIDES CABINET VERSIONS 201-762-2382 CCTV systems, video equip SPEAKER AUDIO. Line: audio equip, test equip Inovonics see ad p 18 Sound Technology see ad p 24 BARBIZON ELECTRIC CO I SONNY SIMBERKOFF ASSOCS. 426 W. 55th St. INC. New York 10019 71 Valley St. 212-586-1620 S. Orange 07079 Anyway you look at Line: lighting equip & suppli them, Unimedia's SMT color moni- 201-763-7900 See ad p 167 tors are good news! Professional quality ... affordable Line: audio equip prices. Shure see ad p 83 BOYTON STUDIOS Melody Pines Farm The SMT Line is a complete TECH LABORATORIES, INC. Morris 13808 family of one-gun color OFFICE monitors, from 9-inch portables and rack models through Line: audio components Bergen & Edsall Blvds. Micro-Trak see ad p 120 12, 15, 17, up to 19-inch rack-mount models. Palisades Park 07650 201-944-2221 THE CAMERA MART If you're a broadcaster, CCTV or Cable operator, or pro- Line: audio components 456 W. 55th St. duction studio operator you can share in the dollar savings Tech-Labs see ad p 173 New York 10019 inherent in Unimedia's simple, straightforward SMT design. 212-757-6977 INC. Now you have a golden opportunity to replace obsolete TELEMEASUREMENTS, Line: cameras & accessories 145 Main Ave. See ad p 89 monochrome models with new SMT color monitors at Clifton 07014 attractive prices. Or replace tempermental large-screen 201-473-8822 CELEBRATION SOUND color jobs with SMT 12s, 15s, 17s, or even the new 19s. Line: full line audio & video equip 157 Gray Rd. Ithaca 14850 If you're starting a new facility, Unimedia monitors can TELE-QUIP, INC. 607-272-8964 save enough to buy you an additional piece of needed P.O. Box 211 Line: full line of audio equip Bridgeport 08014, Micro-Trak see ad p 120 equipment. 609-467-2500 And Unimedia SMT Color Monitors are professional in Line: audio components CHROMACORD CORP. every sense of the word. Their long-term dependability ESE see ad p 119, 166 60 Margaret St. is the result of and Plattsburgh 12901 engineered design simplicity quality 518-561-2900 We've over four thousand units to components. delivered Line: full line of audio equip to satisfied customers in the last four years. You'll find NTSC NEW MEXICO and RGB models. In the nine-inch line you'll choose from MAC PHERSON CONNER A 111 Red Hill Rd. singles, duals, and combination models with waveform New City 10956 monitors, vectorscopes, or audio speaker-amplifiers. Or DYMA ENGINEERING 914-638-1976

combine a color nine with a high resolution monochrome Rt. 1 Box 51 Line: electronic components nine for camera focus and registration. Taos 87571 Amperex see ad p 11, 29 505-758-2686 B. DARMSTEDTER & ASSO You really owe it to yourself to check out the complete Line: full line audio equip, trans- Unimedia line before you install another monitor in your 8201 Speach Drive mitters Baldwinsville 13027 facility. Write or phone today. Remember ... saving Micro-Trak see ad p 120 315-638-1261 money isn't all that bad! Broadcast Electronics see ad p Line: audio equip 162 Wilkinson see ad p 131 UNIMEDIA PHIL M. DUBS ESE see ad p 119, 166 385 Salem Ct. 22525 KINGSTON, LAKE OF THE PINES G.C. VIDEO Hauppauge 11787 AUBURN, (A 95603 9624 Gutierrez Rd. N.E. 516-234-5252 Albuquerque 87111 Line: video proc. equip TELEPHONES: 505-296-5653 Microtime see ad p 109, 1 unimEDia Line: audio & video products (916) 272-1971 FAIRMONT ELECTRONIC Ramko see ad p 44, 45 (916) 878-1250 35 S. Service Rd unimEDia CEI see ad p 117 Plainview 11803 VIDEO-MON INC. 516-694-8200 unimEDia Line: electronic components 222 Truman NE Albuquerque 87108 Electronic Devices see ad unimEDia Line: video equip continued on pa Circle 215 on Reader Service Card 136 SEPTEMBER, 197 www.americanradiohistory.com BUILDING FOR YOUR FUTURE

side this facility the most advanced ldeo switchi ems you can own are being produced. By DucaRichardson.

th laboratory-like building near Den- a special or modified switcher we audio mixing, linear keys with matted fiAally fitted out for Duca-Richardson, are prepared to meet your exact and bordered edges are available. )ihe finest technical teams anywhere specifications. Automatic digital controlled transitions nand manufactures standard and Master Control Switchers -The are included for generating precise nswitching systems for the television Master Control switching panel inte- dissolves or fades to black. Duca-Richardson is a new name in grates all audio, video, and machine Routing Switchers - Large routing mitchers. Yet we're a company of controls on one panel. Audio follow systems of video and audio switching oc,;n industry veterans. We have a video, separate audio, audio over and modules can be built up to whatever f -ibacklog of orders from major cus- mixing is provided on the preset and size is required. Dual channel audio : r And solidly behind us are two program buses. Machine controls and is standard, with optional features such ar rally -known banking and in- computer control inputs are added as vertical interval switching, input 'AI' lit companies. as special options. clamping and equalization. ui iproduct line of video switchers Editing Switchers - These switchers For specifications, quotations and s: are offered with audio follow video and/ delivery dates write or call Carl A. Hedberg, 'I) Auction Switchers - The 4000 or audio breakaway. Special effects, Manager, Engineering Applications, Duca- rs of standard and custom systems Richardson Corporation, 11465 West Forty- 3 designed to satisfy most customer THE NEW IDEAS COME FROM Eighth Avenue, Wheat Ridge, Colorado iirements. However, if you need 80033 (303) 423-1300.

DUCA RICHARDSON CORPORATION 11465 WEST FORTY-EIGHTH AVENUE WHEAT RIDGE, COLORADO 80033 Represented nationally by Inc., 1850 Warburton Avenue, Suite 203, ast Communications Devices, Inc., 5526 East La Palma Avenue. Anaheim, California 92807, (714) 528-9505 Broadcast Communications Devices, RIA Corporation, 430 Garland, Lakewood, Colorado 80226. (303) 238-2593 E ifornia 95050,1408) 984-6614 RIA Corporation, 50 East Malvern Avenue, Salt Lake City, Utah 84115, (801) 486-8822 lk Updates, Inc., 10700 Lyondale Avenue South. Minneapolis. Minnesota 55420. (612) 881-1118 Television Engineering Corporation, 519 Rudder Road. Fenton, Missouri 63026, (314) 343-5606 Circle 216 on Reader Service Card www.americanradiohistory.com OSCAR E. KRAUT NORTHEAST BROADCAST Melville 11746 THE SOURCE '76 530 D Grand St. EQUIP. Line: audio components New York 10002 R.R. #2 Micro-Trak see ad p 120 212-228-5511 Westport 12993 ROSNER CUSTOM SOUND F&B/CECO INC. Line: video equip 518-962-4567 11-38 31st St. 315 W. 43rd St. Line: broadcast equip Long Island City 11106 New York 10036 KVC, INC. NORTHEAST BROADCAST LABS. Line: audio components Line: cameras & accessories 770 Lexington Avenue 15 Charles St. Micro-Trak see ad p 120 See ad p 174 New York 10021 South Glen Falls 12801 Line: video equip F. EDWIN SCHMITT CO., I GOTHAM AUDIO CORP. 518-793-2181 311 Meacham Avenue 741 Washington St. Line: audio equip Elmont 11003 New York 10014 LISTEC TELEVISION EQUIPMENT Micro-Trak see ad p 120 516-437-8150 212-741-7411 CORP. JOSEPH PLANCENCIA CO. Line: full line radio equip Line: audio components 35 Cain Drive 521 Fifth Ave. McMartin see ad p 92 UREI see ad p 106 Plainview 11803 New York 10017 Shure see ad p 83 516-694-8963 JOHN GREY Line: audio components Line: video equip SENECA COMMUNICATIO 4F Underhill Rd. Micro-Trak see ad p 120 Television Products see ad p 48 112 Killewald St. Middletown 10940 P.M. ELECTRONICS Tonawanda 14150 914-342-5113 L.S.M. ASSOCIATES 83 Russel Rd. 716-693-8446 Line: radio equip 27 Orchard Park Garden City 11530 Line: audio & video produ McMartin see ad p 92 Phelps 14532 516-248-4858 315-548-4891 SINGER PRODUCTS CO. L.K. HANER ASSOCS. Line: full line video equip Line: audio components One World Trade Center P.O. Box 101 PROFESSIONAL AUDIO Robins see ad p 163 Suite 3365 Commack 11725 MARKETING New York 10048 516-864-2220 MARTIN AUDIO/VIDEO CORP. P.O. Box 153 212-432-1400 Line: audio components 11372 320 W. 46th St. Jackson Heights Line: audio components Tech Labs see ad p 173 212-898-0200 New York 10036 Micro-Trak see ad p 120 212-548-4891 Line: audio equip HARVEY RADIO CO. Beyer see ad p 107 SONOCRAFT CORP. 60 Crossways Park W. Line: audio components, equip, recording accessories Revox see ad p 121 29 W. 36th St. Woodbury 11797 New York 10018 212-297-7577 Ramko see ad p 44, 45 PROFESSIONAL ELECTRONICS ESE ad p 119, 166 Line: audio & video equip Line: audio components & equip see CO. 678 Troy-Schenectady Rd. SOUND SYSTEMS INC. Latham 12110 JOSEPH ASSOCS. MOBIUS CINE LTD. 42-12 28th St. 7 E. 518-785-1660 11101 8 Cove Lane 47th St. Long Island City P.O. Box 307 New York 10017 Line: audio video products 212-786-4474 Port Washington 11050 212-758-3770 Q.A.R. Line: full line of audio/video See ad p 166 516-883-1829 Line: cameras & accessories 621 South Columbus Ave. Line: audio equip, RF monitors Mt. Vernon 10550 NET SALES, INC. TECH-MARK INC. 914-699-2224 Box 7485 W. Ridge Station 101 Jefferson Ave. K&J ENGINEERING Line: electronic components 53 Fairfield Dr. Rochester 14615 PO Box 120 Electronic Devices see ad p 174 Dix Hills 716-467-4538 Endicott 13760 516-242-0888 Line: audio components ROCKE INTERNATIONAL CORP. 607-748-7473 Line: microwave equip Tech Labs see ad p 173 P.O. Box 745 continued on pa PERFECT YOUR CCTV SYSTE WITH COSMICAR® LENSES

NOW AVAILABLE COSMICAR ES SERIES LENSES, newly developed high sensitivity VIDICON LENSES with AUTOMATIC IRIS that operate for the ranges from 1.4 ft-c to 100,000 ft-c. SMALLEST in sizes, ECONOMICALLY priced and provide VERY WIDE APPLICATIONS. NEW COSMICAR ES SERIES LENSES F.L. 8.5mm f/1.5- ES for 2/3" cameras F.L. 12.5mm f /1.4 -ES for 2/3" & 1" cameras F.L. 16mm f/1.6 -- ES for 2/3" cameras F.L. 25mm f/1.4- ES for 2/3" & 1" cameras F.L. 50mm f /1.8 -ES for 2/3" & 1" cameras

c os COSMICAR LENS DIVISION, ASAHI PRECISION CO., LTD. 424, Higashi-Oizumi, Nerima-ku, Tokyo, Japan Cable Address: "MOVIEKINO TOKYO"

Circle 217 on Reader Service Card 138 SEPTEMBER, 197 www.americanradiohistory.com One of the things RCA does best is help keep your lights lit. scit,,th tubes - camera, receiv- broadcast and broadcast mainte- For full information, check -' d power. SK replacement nance needs much simpler to with your RCA Distributor or nductors along with a meet. With a minimum of panic contact RCA Distributor and to stock of RCA exact and a maximum of efficiency. Special Products Division, Bldg. -ment parts. Our new division was set up 206-2, Cherry Hill Offices, Cam- A's new Distributor and to make your life a lot easier, and den, New Jersey 08101. Products Division can to keep you "on-air" more de- In Canada, contact RCA them all. And more. pendably. It's ready to start doing Limited, Distributor and Special certain to make all your it. Now. Products Division, Sainte Anne- ncnde-Bellevue, P.Q. Distributor and Special Products Division

EMBER, 1976-BM/E 139

www.americanradiohistory.com Line: audio components A.W. GREESON, JR. Brunswick 44212 THE SOURCE '76 Micro-Trak see ad p 120 219 Homewood Ave. 216-225-4443 Greensboro 27403 Line: full line video equip VIDEO COMPONENTS INC. 919-292-1791 Line: electronic components, tubes 601 S. Main St. A/V MEDIA, INC. Line: full line audio & video equip, Amperex see ad p 11, 29 Spring Valley W. Broad St. 10977 RF monitoring equip 3344 914-356-3700 Columbus 43204 TEL-COM, INC. McMartin see ad p 92 Line: camera lenses, full line CCTV 614-272-0014 1475 East Henrietta Rd. ESE see ad p 119, 166 video equip, video camera acces- Line: video and audio pro Rochester 14623 Micro-Trak see ad p 120 716-442-7900 sories, video editors BOLLER ELECTRONICS HAMMOND ELECTRONICS Line: CCTV systems 181 Fairway Blvd. WESTEC AUDIO/VIDEO 2923 Pacific Ave. INC. Columbus 42213 TELEMERICA 100 Riverside Drive #5B Greensboro 21728 25 W. 43rd St. Line: audio components New York 10024 919-275-6391 New York 10036 Micro-Trak see ad p 120 212-873-1166 Line: audio components 212-687-0370 audio Line: components Aristocart see ad p 160 N. BROWNING & CO. Line: audio & broadcast products ESE see ad p 119, 166 3120 Far Hills Ave. Micro-Trak see ad p 120 WINDSOR TOTAL VIDEO TECHNICAL VIDEO SYSTEMS Dayton 45429 TELESCO INTERNATIONAL 652 First Ave. 1148 Burke St. 513-298-5973 SALES CO. New York 10016 Winston-Salem 27101 Line: audio equip #1 Dupont Street S. 212-725-8080 919-725-2026 Beyer see ad p 107 Plainview 11803 Line: videotape equip Line: audio & video equip, CCTV Revox see ad p 121 516-433-6210 systems & COMPANY Line: audio components, trans- CAIN P.D. THOMPSON 201 S. Broad St. mitters, test equip 2550 Weymouth Rd. Lancaster 43130 Micro-Trak see ad p 120 NORTH CAROLINA Winston-Salem 27103 614-654-4800 Ramko see ad p 44, 45 919 -766 -3157 Line: microwave equip Potomac see ad p 16 Line: full line broadcast equip (audio DOUG COOK & ASSOCS. TELEVISION EQUIPMENT APPLIED VIDEO CONCEPTS LTD. & video) 2185 Rd. 3800 Menton Dr. Trent ASSOCIATES Columbus 43229 Box 260 Raleigh 27609 614-471-4114 South Salem 10590 Line: video equip NORTH DAKOTA 914-763-8893 Line: audio & video equip, BCS ASSOCS. mitters Line: brand line radio & TV equip; 1310 Beamon Pl. Micro-Trak see ad p 120 accessories brand line radio & TV K&M ELECTRONICS Greensboro 27408 306 N. University Dr. DAYTON COMMUNICATIONt equip; accessories 919-273-1918 p 167 Fargo 58102 CORP. See ad Line: video products Line: full line video equip 2971 Bluefield Ave. VERAXON INDUSTRIES TFT see ad p 110 Dayton 45414 p 117 312 Second St. CEI see ad 513-278-7937 Ithaca 14850 BROADCAST SERVICES CO. Line: video equip, CCTV syst Line: audio components P.O. Box 85 Micro-Trak see ad p 120 OHIO ELECTRONIC ENGINEERINOtt Selma 27576 362 W. Bowery VICTOR CORP. INTERNATIONAL 919-284-2102 Akron 44307 13 W. 46th St. Line: full line of radio equip APPLIED VIDEO ELECTRONICS Line: audio components New Yook 10036 Broadcast Electronics see ad p INC. 212-246-4410 162 P.O. Box 25 continued on pa bench mark IM cartridge machines

TRANSPORT PROBLEMS GOT 1 HMI DOWN ? ?? FLAGGING? SIGNAL DROP-OUTS? INTERCHANGEABILITY?

The 4--r-ENTELOMETER® tape tensil gauge can help isolate and corm, Measure all others against us these problems and others on yc Other cartridge machines are copies of ITC's, but won't per- reel to reel and U-matic machine form like ITC's. The differences are inside. Design innova- Sgnd for your FREE 8 page tions, master workmanship and superb customer services are 1-17NTELOMETER® instruction an' ITC marks of leadership in quality cartridge equipment. We'll todari prove it with our famous 30-day guarantee of satisfaction. application manual or call Write. Or phone us collect: 309-828-1381. IE NTEL 50 Curtner Ay( -6I InTERnwrion AL TA PETROfIKS CORPORATIOn Campbell CA 95008 (408) 377 ik 2425 SOUTH MAIN ST., BLOOMINGTON, ILLINOIS 61 701 Prices start at $179 Booth Marketed in Canada exclusively by McCurdy Radio Industries Ltd., Toronto, Ontario Visit us at Video Expo NY ... Form 1130004 1975 by ITC or the A.E.S. Show, NY ... Booth'

Circle 218 on Reader Service Card Circle 219 on Reader Service Cal' 140 SEPTEMBER, 1971' www.americanradiohistory.com (213) 655-0303 Your Direct Line to Quality Professional Audio Equipment

Westlake Audio is a lot more than a studio builder. We represent, stock, sell and service the finest professional audio products available today! Microphones, tape machines, amplifiers, speakers, consoles and more. Whatever your product need, call Westlake Audio.

nsoles ronics Automated Processes son Cetec Allen & Heath Machines Electro Sound and Otari Synchronizers Automated Processes 3M EECO Monitor Speakers Westlake Audio JBL Gauss/Cetec Amplifiers Crown JBL Cerwin-Vega SAE Microphones AKG Electro-Voice Neumann Sennheiser Shure Sony Beyer PML Support Equipment Allison Research Amber Atlas Auratone Countryman DBX Dolby Editall Eventide Clockworks Inovonics Koss Lang Electronics MRL MXR Multi-Sync Orban-Parasound Pandora Pultec Sennheiser Sony Stephens Superex U.R.E.I. White EMT Micmix tic Design on control room and sign, construction, ., interface.

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Circle 220 on Reader Service Card ' EMBER, 1976-BM/E 141

www.americanradiohistory.com Line: test instruments Claremore 74017 THE SOURCE '76 Marconi see ad p 135 918-341-5240 PENNSYLVANIA Line: audio components J.B. PARENT CO. 19706 Center Ridge Rd. DOUG BROWN ENTERPRISES Micro-Trak see ad p 120 Cleveland 44116 Box 7494 ALPHA VIDEO & ELECTRONfi ELECTRONIC PRODUCTS CORP. 216-333-9955 Tulsa 74105 9 East Mall Plaza 16006 Waterloo 5188 Wedgewood Rd. 918-747-5045 Carnegie 15106 Cleveland 44110 Medina 44256 Line: audio components 412-279-6169 Line: audio & video equip 216-725-8871 Line: video equip Line: audio equip GOSS COMMUNICATIONS Vega see ad p 116 BARTLETT ASSOCIATES, INI 1450 E. 289th St. Orban/Parasound see ad p 98 130 West Lancaster Ave. 44092 Wickliffe Orban Broadcast see ad p 128 OREGON Box 72 216-944-0268 Wayne 19087 Line: video equip RIXAN ASSOCIATES 215-688-7325 5062 Wadsworth Rd. Line: video equip, switchers EDWARD H. HUBER Dayton 45414 T.T. CAUTHERS Rte. 3, Rhinehart Rd. 513-278-4216 1215 S.E. 73rd Ave. COMMUNICATION MEDIAS Belleville 44813 Line: audio equip Portland 97215 P.O. Box 54 419-886-4445 Modular Audio see ad p 173 503-254-2818 Allentown 18105 Line: radio equip, full line Line: radio equip 215-437-0607 McMartin see ad p 92 VIDEO PHONE SYSTEMS, INC. Collins see ad Cover 4 Line: audio components, fu 4678 Broadview Rd. EARL & BROWN CO., INC. audio & video equip KLOPF A/V CO. Richfield 44286 Broadcast Electronics 3381 Successful Way P.O. Box 19406 see 216-659-9572 162 Dayton 45414 Portland 97219 Line: video equip Micro-Trak ad p 513-236-5500 503-245-2283 see 120 Line: & Line: audio equip audio video products A.C. WAHL & ASSOCS. JERRY & Vega see CONN ASSOC. Micro-Trak see ad p 120 135 Williams St. ad p 116 550 Cleveland Ave. ESE see ad p 119, 166 Cincinnati 45215 ROGER MINTHORNE Chambersburg 17201 MANDABACH ASSOCIATES 513-821-3270 7643 S.W. 33rd Ave. 717-263-8258 Line: audio components 1773 18th St. Portland 97219 Line: CATV electronic units; ci Tech Labs see ad p 173 Cuyanoga Falls 44223 503-246-4556 cable, cable connectors; broa 614-235-0265 WARREN RADIO Line: audio components antennas; TV and FM modul. Line: audio components 1002 Adams St. Robins see ad p 163 processors; microwave system' Robins see ad p 163 Toledo 43697 OREGON A/V SYSTEMS, INC. GEORGE M. CONNEEN CO., I Line: audio components McFADDEN SALES, INC. 117 S.W. Front Ave. 24 S. Newtown St. Rd. Micro-Trak see ad p 120 150 E. Broad St. Portland 97204 Newtown Square 19073 Columbus 43215 503-224-4313 Line: audio equip Line: audio & video products 614-221-3363 EAST. INST. OF PHILA. Line: audio components 617 Cheltenham Ave. Shure see ad p 83 SPS ELECTRONICS OKLAHOMA 8585 SW Canyon Lane #60 Philadelphia OHIO INSTRUMENTS Portland 97225 215-927-7777 7180 Brundage Road 503-297-3862 Line: microwave equip Waldo 43356 HILL RADIO EQUIP. CO. Line: audio components 614-726-4242 Rte 6, Box 622 Tech Labs see ad p 173 continued on page How About That! Nickel Cadmic

77-A Back Pack TV Camera BATTERIE, Battery With 250% More Power Output for ENGI (At No Increase In Weight) Spec fy silvercel By Yardney Or, If Your Present Battery Is As Powerful As You Want It ... How Would You Like To Have It _.At 1/3rd Its Present Weight? ALEXANDER BP-2 Silvercel rechargeable batteries pack the most useable power into the smallest and the lightest modular package. Used by all REPLACES SONY major manufacturers of TV Back Pack LEAD ACID BP-20A' Cameras as original equipment, they offer the added advantage of a QUICK CHARGE FITS MODEL NO. without battery damage by the use of a RECORDER 380 quick pulse charge. TAPE VO DXC 1600' Silvercel (silver/zinc) rechargeable batteries CAMERA NO. - the recognized standard of excellence in power output for back pack TV cameras. CAN BE Our technical assistance and catalog are MODIFIED TO yours for the asking. FIT AKAI

Write Wire or Phone 82 Mechanic Street ALEXANDER manufacturing!:

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Circle 221 on Reader Service Card Circle 222 on Reader Service Ca' 142 SEPTEMBER, 1976- www.americanradiohistory.com . 1111111111111111111111111111111111111* 1111111111111111111111111111111111111

NEC's Super Synchronizer smoothly as those which origi- r you mix, fade, wipe and nate in your studios. And price er from U-Matic VTRs as well shouldn't stand in the way. 111111111111111111111111111111 We're the most reasonable .Trom all other remote sources 11111111111111111111111M111 -lout genlocking, remote 111111111111111111111111111111111 people around. So you can save 1r 'ising or tedious "talking in" 111111111111111111111111111111111111 money and manpower both as Ili; rubidium-standard adjust- you increase your commitment to ENG. It should be just a matter nts. Yet, the compact Super 111111111111111111111111111111111111 'ichronizer costs only about IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII of getting started. Why not give f the price of competitive 111111111111111111111111111111111111 us a call or drop us a line right 11111111111111111111111 :ts. now. How's it possible? Our FS-12 xrne Synchronizer is now aug- it is possible to work with a So NEC America, Inc. -.Med by our new Time Base single video connecting cable. to 277 Park Avenue rrector adaptor. This pro- Further, you can feel free New York, N.Y. 10017 es an infinite correction move the VTR around during Tel.. (212) 758-1666 .adow. recording. The Super Synchro- The combined unit allows nizer smooths out heavy time =ration with non-phased in- base errors. Also, velocity :t video signals. This means no compensation is available. NEC pic- )dback control timing pulse is Now you can integrate Nippon Electric Co., Ltd. cessary for the U-Matic VTR. tures from your ENG unit as Tokyo, Japan

An NEC frame synchronizer won the Emmy Award in 1975 as the year's outstanding achievement in engineering development.

Circle 223 on Reader Service Card

:MBER, 1976-BM/ E 1 4 3

www.americanradiohistory.com Line: audio equip, components 3550 Laketon Rd. Columbia 29202 THE SOURCE '76 Tandberg see ad p 86 Pittsburgh 15235 Line: audio components Sound Technology see ad p 24 412-241-5205 Micro-Trak see ad p 120 Line: audio components HENRY RHEA Tech Labs see ad p 173 HOLT TECHNICAL SERVICE 1229 Hunt Club La. 428 Broadhead Ave. Media 19063 Bethlehem 18016 215-566-6558 TENNESSEE 215-865-3775 Line: audio equip; transmitters Line: audio & video products RHODE ISLAND Micro-Trak see ad p 120 RO-CEL ELECTRONICS, INC. 731 Voice of the Theatre Bldg. ALLIED SOUND-VISUAL LERRO ELECTRICAL CORP. Rt 8 North EDUCATION DIV. N. Broad St. WRH PRODUCTIONS 3125 Pittsburgh 15223 2741 Nonconnah Blvd. S. Suit Philadelphia 19132 5 Industrial Way Memphis 38132 412-781-2326 Riverside 02915 215-223-8200 Line: audio components 901-396-4747 Line: video equip 401-434-6272 ESE see ad p 116, 166 Line: 401 Spence Lane full line audio components, Nashville 37210 L&M ASSOCS. equip RF monitors RPC ELECTRONICS 615-254-6473 965-A Bristol Pike Micro-trak see ad p 20 Andalusia 19020 620 Alpha Drive Line: audio & video equip Pittsburgh 15238 215-639-3100 AUDIO CONSULTANTS, INC., Line: test instruments 412-782-3770 7 Music Circle North Marconi see ad p 135 Line: full line of audio/video equip Suite 105 Amtron see ad p 168 SOUTH CAROLINA Nashville 37203 SAMUEL K MACDONALD INC. 615-256-6900 1531 Spruce St. A.A. SILVER Line: audio equip Philadelphia 19102 P.O. Box 941 MCI see ad p 63 215-545-1205 Levittown 19058 R.L. BRYAN CO. Line: audio equip 215-943-3622 301 Greyston Blvd. BARRY TRADING CO. Shure see ad p 83 Line: radio equip Columbia 29210 105 W. Market St. Collins see ad Cover 4 803-779-3560 Lebanon 37087 MARCO VIDEO SYSTEMS, INC. Line: audio & video products Line: audio components 6114 North 20th St. D. SMITH Ramko see ad p 44, 45 Micro-Trak see ad p 120 Philadelphia 19138 Southampton 18966 215-849-9500 215-355-6642 CALHOUN A/V CO. BROADCAST DISTRIBUTOR; Line: CCTV systems Line: video equip 1217 Broad River Rd. Bible Place CVS see ad p 105 Columbia 29210 Cleveland 37311 PEIRCE PHELPS, INC. 803-772-9130 615-472-8200 N. 59th St. VAL-TRONICS, INC. 2000 Line: audio & video products Line: audio components and Philadelphia 19131 Penn Park Bldg. 215-477-9000 Pittston 18640 CANDOR CO. BROADCAST EQUIPMENT Line: audio & video equip, CCTV, 717-655-5937 P.O. Box 2220 SUPPLY CO. video systems Line: audio & video equip, RF moni- Myrtle Beach 29577 Rt. 1, Weaver Pike Micro-Trak see ad p 120 tors 803-448-8361 Bluff City 37620 Ramko see ad p 44, 45 Line: electronic components; tubes MARK PITKOW COMPANY 635-968-7342 Micro-Trak see ad p 120 Amperex see ad p 11, 29 full line audio 1580 Buck Hill Drive Line: equip McMartin see ad p 92 Ramko see ad p 44, 45 Huntington Valley 19006 DIXIE RADIO & SUPPLY CO. 215-464-8921 WAGGONER-VERHILL ASSOCS. 1900 Barnwell St. continued on pag

This Is Our Smallest

EZZI:=E:1-4111' ...... e ./.(e(,(0(-6(//

MAKE EYEWITNESS NEWS TOTALLY PORTABLE with battery powered Color Monitors by The QM-8A Videotek. Both the five inch monitor and nine inch monitor (and) montior/ receiver are complete with battery Ask Us About Our Largestl; pack that allows two and one-half hours of use. With battery powered From 8 in 4 out to 32 in 24 out color monitors you can be assured of quick, convenient and proper setup of Quality cameras and playback of tape recorders at remote locations. Easy to use DON'T WAIT TO SET YOUR MIND AT EASE, Affordable TAKE VIDEO EK BATTERY POWERED COLOR MONITORS WITH YOU AND FULFILL YOUR ENG NEEDS TODAY for further information on our complete color monitor line call Videotek or circle on Readers Service Card. QUANTUM Audio Labs 1905 Riverside Dr. VIDEO: EK, INC. Glendale, Calif. 91201 640 East Vine Street, (213) 841-0970 Stowe, Pennsyvania, 19464 Phone (215) 367-6977 j Circle 224 on Reader Service Card Circle 225 on Reader Service C 144 SEPTEMBER, 1976- www.americanradiohistory.com In a radically changing industry, there are still reliable standards. This is one of the few.

In fact, its one of the most reliable pieces of studio equipment you can buy. All it does is work. And work. Quietly and reliably, year after year. So reliable that many of our original turntables, built nearly 30 years ago, are still in service all around the world. Of course, the QRK you buy this year has changed from the original. It's changed from last year. This year, it comes with a new motor, new idler and 3 striking-new colors. And orders are being filled the day they're received. But what made us famous and what no one's ever been able to copy is what's made us the industry standard: solid, quiet, built-by-hand reliability. Still the industry standard for quiet reliability. ruh

ELECTRONIC PRODUCTS, INC. 1568 North Sierra Vista, Fresno, California 93703, Phone (209) 251-4213 Circle 226 on Reader Service Card www.americanradiohistory.com Mlcmix see ad p 172 AUSTIN PROFESSIONAL AUDIO, Line: electronic componen THE SOURCE '76 INC. English Electric Valve See STUDIO SUPPLY CO. 308 W. 6th Street P.O. Box 280 Austin 78701 CROUSE-KIMZEY CO. Nashville 37202 512-477-3706 3507 W. Vickery Box 9830 Micro-Trak see ad p 120 615-327-3075 Line: audio equip Ft. Worth 76107 Inovonics see ad p 18 Line: audio components, equip; MCI see ad p 63 817-737-9911 recording accessories Line: audio components CLW BROADCASTERS ARNOLD BARNES CO. Micro-Trak see ad p 120 2004 S. Orchard Knob Ave. WARREN RADIO CO. P.O. Box 9748 Chattanooga 37404 190 S. Cooper St. D&J SALES COMPANY Austin 78766 2307 Line: full line of radio equip Memphis 38104 59 St. 512-454-4371 Lubbock 79412 Micro-Trak see ad p 120 Line: audio components 7616 LBJ Freeway, Suite 401 806-792-0001 ESE see ad p 119, 166 Micro-Trak see ad p 120 Dallas 75240 Line: audio products, tran 214-233-5535 DELTRONICS WALLACE WILSON & ASSOC. 18100 Upper Bay Road, Suite 103 VICTOR DUNCAN INC. Woodland St. 478 Devens Dr. 819 Houston 77058 2659 Fondren Ave. Nashville 37206 Brentwood 37027 615-794-0155 713-488-4543 Dallas 75206 615-262-3177 Line: cameras & accessories video Line: audio equip 802 Lingco Line: systems Richardson 75080 Vega see ad p 116 DUNKEL ELECTRONIC A 214-235-4553 ELECTRA DISTRIBUTING CO. P.O. Box 35353 1914 West End Ave. Line: audio, video, broadcast prod- Houston 77035 Nashville 37203 ucts 713-729-1670 Line: audio equip Line: audio components Micro-Trak see ad p 120 TEXAS BRADENCO 2646 Andjon Drive Tech Labs see ad p 173 R.C. EVANS Dallas 75220 GEE-GIBSON ELECTRONIC Rt. #2 Box 12, Glenmore Dr. 214-358-3278 ACCENT AUDIO/VIDEO 4002 E. Houston Hwy. Rockford 37853 Line: test instruments Victoria 77901 6712 Oakbrook Blvd. 615-573-9717 Marconi see ad p 135 512-578-4323 Line: radio equip Dallas 75235 CAMPION SALES CO. Line: audio, video products Collins see ad Cover 4 214-637-5660 Line: audio components P.O. Box 88 GUARANTEE RADIO SUPPLY01 MEDIA ASSOCS. ESE see ad p 119, 166 Richardson 75080 CORP. P.O. Box 249 214-238-8145 1314 Iturbide St. Franklin 37064 ACCURATE SOUND CORP. Line: audio equip Laredo 78040 1206 Blvd. Suite 106 Line: full line radio equip Euless Shure see ad p 83 512-722-3233 Euless 76039 Line: audio components MOTION PICTURE 817-267-3911 COLLINS RADIO GROUP LABORATORIES, INC. Line: full line of audio equip 1225 North Alma INDUSTRIAL AV INC. 781 S. Main St. Richardson 75080 7315 Ashcroft #.116 Memphis 38102 BOB AMOS & ASSOCS. 214-690-5000 Houston 77036 Line: cameras & accessories 916 Green Hill Rd. Line: audio components Line: video equip Dallas 75232 Ramko see ad p 44, 45 SPHERE AUDIO SALES 214-823-7820 BOB LANDINGHAM 478 Devens Drive Line: audio consoles, FM monitoring GARY COOPER 2121 Santa Anne Blvd. Brentwood 37027 equip, audio & video equip, trans- 371 Oakview Drive Dallas 75028 615-794-0155 mitters Lewisville 75067 214-327-7311 Line: audio equip UREI see ad p 106 817-430-1373 Line: video proc amp switchers

Beau. The only quality AM PHASING SiVITEMS. replacement motor for cartridge and reel-to-reel Quality tape machines. and Ever wonder why the unique Beau, inside- Reliability- out, hysteresis synchronous tape drive motor is specified in just about every major piece of cartridge tape equipment? Or why so many Ampex and Scully machines are equipped - that's what you with Beau replacement motors? The answer is simple: need and depend Quality. Beau offers unbeatable operating specs, outstanding reliability, long life, quiet operation, compact size, and on with Phasors unconditional factory support. No import can beat Beau, the and Antenna Tuning Units. Multronics builds original broadcast tape drive motor. them that way. Units are customized to meet To order Ampex and Scully replacements, specify tape specific requirements of stations and consultants. speed and model number from the table below: Type and Models Beau Prices OTHER HIGH QUALITY PRODUCTS: Ampex - Model 440 $180.00 Ampex - Models 350, 351, 354 $195.00 Fixed Inductors "Isolation Inductors 270, 275, 280, 282 $180.00 Scully - Models Variable Inductors R F Contactors For fast delivery of cartridge drive motors for ITC, ATC, Gates, Spotmaster, Ampro, and Sparta machines, call OUR NEW ADDRESS IS: (203) 288-7731. Or write for our free Beau motor bulletin. MULTRONICS, INC. 9005 Red Branch Road B EAU MOTOR DIVISION Columbia, Maryland 21045 U MC EL TRON ICS CO. Phone: 301-730-1122 Unit' Rd. CT 06473 460 Sackett Point North Haven,

Circle 227 on Reader Service Card Circle 228 on Reader Service Card 146 SEPTEMBER, 1976- www.americanradiohistory.com ideo proc amp switchers Line: audio and video equipment 214-234-3602 Arlington 76010 ad p 59 Line: transmitters 817-261-8197 BOBB PARTRIDGE Line: full line audio & recording %LES CO. 410 Elizabeth St. STUDIO SOUND SERVICE equip ale Blvd. Irving 75060 1401-F S. Floyd Rd. 214-221-3175 Richardson 75080 WYBORNY SALES CO. 3-3831 Line: audio equip 214-690-3131 9450 Skillman #115 udio products Beyer see ad p 107 Line: audio components, equip Dallas 75243 Revox see ad p 121 214-691-6484 ES LUCAS SALES CO. GENE SUDDUTH Suite #108 x 24632 PROFESSIONAL AUDIO 2809 Raintree Drive 7315 Ashcraft '5224 SERVICES Carrollton 75006 Houston 77036 nt Way P.O. Box 1953 214-242-2690 713-772-0961 5236 Ft. Worth 76101 Line: full line vide equip Line: audio components, equip i-8181 817-536-6254 Audio Design see ad p 85 Vega see ad p 116 idio equip, test equip Line: audio components Datatek see ad p 8 4rechnology see ad p 24 Aristocart see ad p 160 CEI see ad p 117 erg see ad p 86 SAVCO TEXPORT CO. ELECTRONICS P.O. Box 427 UTAH 1401-K S. Floyd 26816 Richardson 75080 Richardson 75081 1 77207 214-234-1841 214-238-7117 BACON Jdio & video equip Line: wide range of products for BOB Line: audio components 2536 Campus Dr. radio, TV & sound recording -1, ZIENKOSKY, BROWNE & Robins see ad p 163 Salt Lake City 84121 Inovonics see ad p 18 S. Line: video equip rby, Suite 834 Wilkinson see ad p 131 RUSSELL TREVILLIAN 2908 Mulberry B&B ELECTRONIC PRODUCTS 77006 J.Y. SCHOONMAKER CO. Pasadena 77502 2605 E. 3300 So. -4333 2995 Ladybird Lane )mega Rd. 713-941-7272 Salt Lake City 84109 Dallas 75220 Line: video equip 801-486-3943 .:_.'5240 214-357-8481 American Data Corp see ad p 40 Line: audio equip 7.;-5535 Line: tape recorders, audio equip Comtec see ad p 114 Vega see ad p 116 'Tx 9748 SOUND IDEAS ASSOCS. -'8766 VIDEO ELECTRONICS J.E. HALL COMPANY I -4371 6123 Spruce Forest 2330 So. Main #8 Houston 77018 3000 Carlisle St. II line of audio & video equip Dallas 75204 Salt Lake City 84115 ad p 110 5641 Yale Blvd. 801-466-6105 Dallas 214-741-1440 & video Line: audio equip 3T TELE Line: video equip Line: CCTV systems, audio .ANICATIONS equip UREI see ad p 106 irlisle Plaza SOUTHWEST ELECT. VIDEO SYSTEMS H.P. MARKETING 5235 9226 Markville Dr. 2000 A Governors Circle 2361 S. Main , -1440 Dallas 75231 214-690-9881 Houston 77018 Salt Lake City 84115 : Kilo components Line: audio components 713-686-9651 801-466-6105 9 ad p 119, 166 Line: audio equip Tech Labs see ad p 173 Line: audio equip see ad p 106 I IAL BROADCAST EQUIP. ESE see ad p 119, 166 UREI JIM SPECK . Floyd Rd. LAWSON ASSOCS. son 75080 1105 High Vista WHALIN'S PRO AUDIO SALES Richardson 75080 2910 Buena Vista continued on page 148 ' -3131 Set it and forget it

COMING NPTO4M.

IN # OCTOBER: The NEW RFA-5 AM RF Amplifier

30dB AGC Range Signal Strength Meter Three RF Outputs for vw Technologies monitors, frequency counter and oscilloscope Optional 600 ohm Balanced Audio Output and Carrier/Audio-Fail Alarms. ipen New Vistas "Set it and forget it" - that's the comment most often heard from AM station or engineers who have installed a National Electrolab AM RF Amplifier. The new Instruction/ R FA-5 is even better than the previous R FA-4. AGC is now standard, and a built-in carrier level meter makes setup easy. As well as driving most modulation Media. . . . monitors, the RFA-5 also delivers a low level oscilloscope output and a clipped/ limited output for a standard frequency counter. Four double-tuned selective stages in the preamp, combined with a MOS-F ET front end, provide outstanding performance in frequency-congested areas. Over 250 radio stations in Canada and the U.S.A. are presently using National Electrolab RF amplifiers. Try one Also: Extra yourself - and forget it. For complete information, call any office of Gates Broadcast Equipment Div. of Harris Corp. or: Circulation At 1AEB Convention es NATIONAL ELECTROLAB LTD. Box 68, Blaine, Washington 98230 Canada: 1536 Columbia St., North Vancouver B.C. V7J 1A4 Phone (604) 985-0511

Circle 229 on Reader Service Card 147 MEMBER, 1976-BM/E www.americanradiohistory.com Leesburg 22075 Arlington 22201 BROADCAST SUPPLY CO. THE SOURCE '76 703-777-8660 Line: video equip 2711 Locust Ave West Line: audio equip & broadcast prod- Tacoma 98466 ucts SPHERE ASSOC. 206-565-2301 5 Research Rd. Micro-Trak see ad p 120 11250-7 Roger Bacon Dr. Line: broadcast products Salt Lake City 84112 Reston 22090 Micro-Trak see ad p 120 BROADCAST ENGINEERS & 801-582-9322 703-471-7887 Ramko see ad p 44, 45 EQUIP. REPS. Line: video for broadcast and CATV NY 212-246-0176 Aristocart see p 160 Box 4777 Line: audio equip MEDIA WEST INC. IGM see ad p 10 Richmond 23229 Micmix see ad p 172 187 West 3100 South, Box 458 804-285-8888 Vega see ad p 116 DAVE CHAMPLIN Bountiful 84010 Line: full line of radio eqip 801-295-3308 12528 22nd Ave. NE Line: audio components & radio HABCO ELECTRONICS INC. Seattle 98125 equip 3116 Sedgewick Dr. 206-362-0401 Micro-Trak see ad p 120 Lynchburg 24503 WASHINGTON Line: audio products 703-384-5236 Beyer see ad p 107 PARTRIDGE ELECTRONIC SALES Line: audio components Revox see ad p 121 P.O. Box 21205 Tech Labs see ad p 173 AERO MARC Salt Lake City 84121 INC. DATACOM ASSOCIATES 5518 Empire Way S. 801-943-0127 LEE HARTMAN & SONS INC. 111 Tower Place Seattle 98118 Line: audio test equip, generators P.O. Box 659 98109 206-725-1400 Seattle Beyer see ad p 107 3236 Cove Rd. N.W. 206-285-2525 Line: audio & video products Sound Technology see ad p 24 Roanoke 20004 Line: recorders, audio consolet, Revox see ad p 121 703-366-3494, 3493, 3713 ANIXTER-PRUZAN monitors, video equip Line: full line audio & video eqip 1963 First McMartin see ad p 92 RIA CORP. Ave. So. Micro-Trak see ad p 120 Seattle 98134 50 East Malvern Ave. MEPCO/ELECTRA Line: Sony studio video equip full RUSH S. DRAKE Salt Lake City 84115 6133 6th Ave. S. 801-486-8822 5700 Old Richmond Ave. line of CATV equip, cable construction accessories, tools Seattle 98108 Line: TV broadcast and microwave Richmond 23226 head 804-282-6515 end, passives, test equip, power 206-763-2755 equip Line: test instruments Line: electronic components; tubes supplies Nurad see ad p 122 Marconi see ad p 135 CEI see ad p 117 Amperex see ad p 11, 29 BENNETT ENGINEERING CO. Duca-Richardson see ad p 137 MIDWEST CORP. Box 23 EARL & BROWN CO. INC. 1395 Air Rail Ave. Mercer Island 98040 P.O. Box 9285 Virginia Beach 23455 206-232-3550 Seattle 98109 VIRGINIA 804-855-1056 Line: audio & video products; 206-284-1121 audio equip Line: audio & video products microwave Line: Nurad see ad p 122 Vega see ad p 116 BCS PROFESSIONAL SOUNDS INC. Microwave Associates see ad p 39 FLEEHART & SULLIVAN, INCA : 107 Rich Neck Rd. 711 W. Broad St. TFT see pg 110 Aurora Ave. N. Williamsburg 23185 Falls Church 22046 10109 804-245-1786 703-533-0011 BROADCAST SPECIALTIES Seattle 98133 Line: video equip Line: full line of audio equip 3163 Ocean Beach Hgwy 206-522-1533 Longview 98632 Line: audio equip BROADCAST CONSULTANTS ROBERT SLYE ELECTRONICS, 206-577-1671 Shure see ad p 83 CORP. INC. Line: radio & audio equip 21 N. Wirt St. 1203 North Highland Street See ad p 133 continued on page.*

COMPLIMITERTm RAPID - CARTRIDGE TAPE EQUIPM

RAPID- Q

MODEL 610 Used in recording studios; disc mastering studios; sound kP reinforcement systems; TV, AM, FM broadcast stations to RAPID- Q maintain a sustained average signal at a level ,gnificantly RAPID-0, the first to offer automa higher than that possible in conventional limiters, and with fast-forward, has a cartridge machi performance that is seldom attained by most linear amplifiers. just for you. We offer the RQ 71 Ser, for all size carts and the RQ-3000 Ser Rack mounted, solid state, new functional styling, the for A size carts. Model 610 is in stock for immediate shipment. RAPID-0 units are available in ma configurations; one is sure to your needs. Choose from ma Specifications are available from: stereo, single, dual or triple units; PI, back only or record/playback units.

RAPID-0 machines are among I smallest units available and most mod, PENH TONICS can be rack mounted.

770 WALL AVENUE, OGDEN, UTAH 84404 680 BIZZELL DRIVE LEXINGTON, KENT, (801) 392-7531 (606)259-0434

Circle 231 on Reader Service Card Circle 232 on Reader Service Can 148 SEPTEMBER, 1976- www.americanradiohistory.com We've added more features to the MOST DIGITAL TIME BASE CORRECTOR available today.... he DVL 2002 VIDEO PROCESSOR _mpare these standard features: to a direct color playback mode. This Dropout Compensator (optional) Times Subcarrier. We were the provides for the finest possible oper- This all digital system inserts correct ;t with this industry standard, for ation of cassette VTRs. color information from the previous :Ater S/N ratio, better frequency Chroma/Luminance Correction line. -Gponse and far greater potential VTR delay mismatches (envelope system expansion. delay) between the Y and chroma channels are up to one 5 Line Floating Window. Our super corrected ie window eliminates the vertical microsecond. nping often encountered in other Full NTSC Advanced Sync. Advance Cs. If this window is exceeded by is automatically adapted to each dif- ENG tape displaying gyro effects, ferent VTR for zero system delay.

_I color lock is maintained and only Advance can also be manually con-

- light vertical movement will be trolled over --±8 TV lines. Microprocessor Servo (optional) played. Digital Sync Generator. This full This motor drive logic system sup- 411 Digital Control Panel. Push broadcast quality master sync gener- plies the precise phase and frequen- tton controls and an LED display ator with gen-lock is supplied with cy information to any motor drive absolute repeatability of output drivers. wide amplifier which in turn powers your for any tape or scene. Pro- stings Digital Proc Amp. For absolute non capstan servo VTR. Full lock-up larnmable unity settings have a precision, burst and blanking are in- of H, V, and color is achieved within wer down memory. serted as a stream of digital numbers 5 seconds. This microprocessor sys- Digital Heterodyne Processing prior to data conversion to analog. tem adapts to the VTR with absolutely coding, chroma/luminance re- The standard DVL 2002 has a mini- no adjustments. With your non cap- -gnment, and encoding are all mum of internal adjustments, adapts stan servo cassette players, you can :icomplished in the digital 4x sub- to any capstan servo VTR without feed direct to air, or to your switcher :rrier format. modification, and every component for mixing. Dubbing to quad is not Derived Subcarrier. 3.58 Mhz sub- has been burned in for at least 100 necessary. -rrier is derived from the video tape hours prior to shipment. conversion of heterodyne VTRs

......

Interested? For more information or a demonstration write or give us a call. DIGITAL VIDEO SYSTEMS 519 McNicoll Avenue, Willowdale, Ontario, Canada, M2H 2C9 (416) 499-4826 Circle 233 on Reader Service Card TEMBER, 1976-BM/E 149 www.americanradiohistory.com 19001 40th Place N.E. E.A. DICKINSON ASSOCS. INC. Calgary, Alberta THE SOURCE '76 Seattle 98115 3612 N. Green Bay Ave. 403-277-8600 206-363-2200 Milwaukee 53212 Line: full line radio & TV Line: electronic tubes, components 414-264-1080 Collins see ad Cover 4 HENRY JONCAS CO. English Electric Valve see ad p 13 Line: electronic components, tubes ARBUTHNOT ELECTRO 12058 Lake City Way, NE Amperex see ad p 11, 29 Seattle 98125 SCIENTIFIC SYSTEMS 307-400 Tache Ave. 206-363-9200 13550 Lake City Way, NW DAVID M. KELLY Winnipeg, Manitoba R2H Line: audio equip, test equip Seattle 98125 2253 Oneida 204-233-4941 Green Line: Sound Technology see ad p 24 206-363-8600 Bay 54304 audio, video equ ponents Tandburg see ad p 86 Line: video equip 414-497-1193 Line: radio equip, TV equip ESE see ad p 119, 166 JOHN McCLAMROCK CO. SEA-TAC PRODUCTIONS McMartin see ad p 92 AUDIO ELECTRONICS 11206 Des Moines Way S. 20103 Des Moines Way S. #.219 1147-17th Ave. Suite #.108 Seattle 98148 MILWAUKEE VIDEO S.W. 1024 6th St. Calgary, Alberta T2T 087 Seattle 98168 206-624-1111 Milwaukee 53201 403-245-1001 206-244-9391 Line: audio & broadcast equip 414-224-0660 Line: audio automation Line: full line radio equip Robins see ad p 163 systo Line: video products Wilkinson see ad p 131 SPS ELECTRONICS BIO-ELECTRONICS SATTERFIELD ELECTRONICS 1883 Lawrence Ave. E. MEPCO/ELECTRA 545 Lake St. So. 1900 S. Park St. Scarborough, Ont. 14040 NE 8th St. Kirkland 98033 Madison 53701 Line: audio equip 103 206-827-5811 Suite 608-257-4801 Micro-Trak see ad p 120 Bellevue 98007 P.O. Box 11066 Line: audio & video equip 206-746-1212 Parkwater Station BROADCAST ENGINEEREDili ESE see ad p 119, 116 Line: electronic components, tubes Spokane 99211 SYSTEMS Amperex see ad p 11, 29 503-297-3862 VIDEO IMAGES 1466 Kalligan Court Line: audio components 2400 S. Commerce Drive Mississauga, Ont. NORTHSHORE MARKETING Tech Labs see ad p 173 New Berlin 53151 416-277-0277 (NOR-MARK) 414-784-2080 Line: audio equip 400 108 N.E. #20 TRACK AUDIO Line: full line audio/video equip Bellevue 98004 2134 South 295th CALDWELL A/V EQUIP. cat 206-746-9423 Federal Way 98003 1080 Bellamy Rd. N. Line: audio equip 206-941-2233 Scarborough, Ontario UREI see ad p 106 Line: audio components CANADA 416-438-6230 ESE see ad p 119, 166 Line: full line audio & video. NORTHWEST COMMUNICATIONS N. 1324 A St. ADCOM ELECTRONICS LTD. CHATEAU SEVEN GROUP L' Spokane 99201 29-16 Connell Court O.C. Div. 509-326-4740 WISCONSIN Toronto, Ont. 1125 Empress St. Line: video & audio equip Line: audio & video equip Winnipeg, Mant. R3E 3H1 204-475-1026 NUCOM ASSOCIATES Amtron see ad p 168 r. Line: full line broadcast equip : 19415 36th Court NE APPLIED ELECTRONICS Seattle 98155 AVIONIX DIVISION 299 Evans Ave. CHROMOCORD CORPORAT!! 206-364-9911 AV ELECTRONICS INC. P.O. Box 505 Toronto M8Z 1K2 2343 43rd Avenue Line: video & audio equip 21675 Dora! Rd. 416-252-3761 Lachine, Quebec H8T 2K1 CEI see ad p 117 514-636-8183 Brookfield 53005 Bay No. 1 DON ROSE Line: video systems 4519 12th St. N.E. continued on page 4

REBUILT A No ural for RemOte Broadcast' POWER AMPLI FIER Production Package: TUBES New Tube Warrantee Guaranteed Satisfaction Disco Off Shelf Delivery Fraction Of New Price r:

PARTIAL LIST OF T YPES:

125A 5771 680 207A 5891 6801 356 5918 6924 891 5919 7001 891R 6420 748 892 6421 75 k 892R 6422 780 893 AR 6423 78 1089 6424 846 5667 6425 85. MONO '1275 SIRE() $1725 SHELF '75 5671 6426 871 5681 6427 231 be,ofs,eitiAledIrriP minutesf. ki Stock 5682 6696 234 I P, -41 5770 6697 234

ALLIED BROADCAST' EQUIPMEMENT Duds Purchased Or Rebui It 124 South 6th Street Send For Quote Richmond, Indiana 47374 VACUUM TUBE INDUSTRF 35 Pequit St., Canton, Mass. 020 317- 962-8'596 617-828-1650 Circle 234 on Reader Service Card Circle 235 on Reader Service Ca- 150 SEPTEMBER, 1976- www.americanradiohistory.com ughan Road OAKWOOD AUDIO LABS LTD. 416-839-8041 3, Ontario M6C 2M2 625 King Edward St. Line: audio equip MEXICO 3-7722 Winnipeg, Manitoba R3H OP2 Shure see ad p 83 udio equip, components Line: audio components see ad p 120 Micro-Trak SMYTH SOUND EQUIP. Irak see ad p 120 COLOR CASSETTES e ad p 63 165 Industrial Park Rd. PHILIPS CANADA WEST Longueuil, Quebec Calle America 173 COMMUNICATIONS LTD. 3605 Grand View Highway 514-679-5490 Mexico 21, D.F. bion Rd., Unit 7 Vancouver, B.C. Line: audio equip 905-549-3100 4, Ont. M9V 1C2 604-435-4411 UREI see ad p 106 Line: video equip 3-6494 Line: electronic components; tubes CEI see ad p 117 Jdio components Amperex see ad p 11, 29 SPARTRONICS m ad p 119, 166 1259 Victoria St. N. PHILIPS ELECTRIC INDUSTRIES Kitchener, Ont. F3E DUPONT 601 Milner Ave. Line: radio equip ichaine Scarborough Ont. M1B 1M8 ent De Paul H7C 2N7 P0 416-292-5161 TELVICOM LTD. PUERTO RICO -5120 Line: electronic components, tubes 822 Halpern Ave. deo equip Amperex see ad p 11, 29 Dorval Quebec H9P 1G6 ad p 40 514-631-9089 rt ian Data Corp. see PINEWAY ELECTRONICS LTD. Line: full line of video, radio equip HOPE, BENNETT & BLACKBURN :10DESIGN LTD. 1875 Leslie Street Unit 3 P.O. Box S-3224 Collins Radio see ad Cover 4 Ex 33 Don Mills, Ont. Old San Juan 00904 K- a Vancouver, B.C. V9L 3X1 416-449-1343 L.A. VARAH LTD. 809-725-8668 't ,leur Blvd. Line: audio components, equip 2077 Alberta St. Line: full line of radio equip _Salle, 650 Micro-Trak see ad p 120 Vancouver, B.C. MCI see ad pg 63 3H9 'tIQuebec H8R RO-BAR 604-873-3211 TFT see ad pg 110 .urence Ave. West, Suite 219 ELECTRONICS SYSTEMS, LTD. Line: audio equipment 19, Ontario M6A 1A2 SAMUEL PEREZ, JR. 140 Doncaster, Unit 7 Aristocart see p 160 1 mtreal Rd. Thornhill, Ontario 20Fco. Mariano Quinones E Ontario K1L 6C1 =Ottawa, 416-881-2331 WELSH COMMUNICATIONS Urb. Ramirez de Arellano -'tford Ave. 43 Railside Rd. Mayaguez 00708 fr_ R2V OX1 A.C. SIMMONDS & SONS LTD. Don Mills, Ontario 809-833-3936 :ftiya icrowave equip 975 Dillingham Rd. 416-445-5650 Line: radio broadcast equip V4ROW ASSOCS. Pickering, Ont. L1W 3B2 Line: video equip Cetec see ad p 129

.1 Ixie Rd. Unit 33

J siuga, Ont. L4W 1 E4 -8151

; idio components Nkl3ONIX LTD. If Acan Mills Rd. BM/E's Third Annual vs Ont. l'4--8497 : II line audio & video equip Best-Station Award Contest 4 3 se ad p 134 GULD MARKETING Mitee De Liesse Win deserved Recognition* ent, Quebec 3.-4440 If you have built new broadcast facilities, or modernized your --4 dio, TV broadcast equip in .cee ad p 129 old, for dollar-smart operations or more human efficiency the .3.IELECTRONICS LTD. last year ... t.an Drive 17, Ont. Send Your Story by October 15 to the BM/E BEST-STATION 4 -9080 rt Jdio equip AWARD CONTEST L; wicast Electronics see ad p 162 We will publish in the December, 1976 issue, all stories our se ad p 106 Our readers will be invited to pick the IRON, LTD. editors find acceptable. Campagne Drive winner in each of three categories: AM, FM and TV. 'view, Ontario M3J 2T9 :udio equip, components Each winner will get a Best Station Award plaque designed e7cics see ad p 18 to enhance any station visitor's lobby, manager's office, or silEAL VIDEO CO. studio. ourg ",- /' la! 377, Quebec H4T 1j2 Winner will be announced in the March, 1977 issue.

- -2-4420 .udio, video equip Here are the simple rules: 3114 see p 44, 45 ad Describe your construction or modernization briefly, : .IELECTRONICS LTD. Ildcat Rd including the logic of your equipment selections or design +tview Ont. M3J 2N5 layout decisions. Focus on one section of your + -v1-4180 Xview Place SW plant-transmitter, remote control, or studio control room ay T2V 3Z9 Ex 104 layout, as examples-or describe the whole plant. Write as Meld, Nova Scotia BONICO much, or as little as you need to tell the story clearly, but the 41ransmitting and studio equip; A, FM, TV audio, radio, video upper limit is 1500 words. Include photos, block diagrams, luipment schematics, floor plans as needed. See December 1975 for 'SCO MFG oral Parkway examples. o, Ontario M6L 2C5 49-7316 Remember-Get Your Story in by October 15th. 'magnetic tape equip Send it to Best Station Award, BM/E, 295 Madison Ave., New I see ad p 140 'EC WEST LTD. York, NY 10017. For further information, write or call the Editor, 3 Farrell Rd. at the same address. Tel: (212) 658-5320. .ry, Alberta BM/E, nit 52-8141 *1975 winners: AM, CHWO, Oakville, Ontario; FM, WIDR, Kalamazoo, Mich.; +c audio equip WPRI-TV, Providence, R.I. 1974 winners: AM, KMWX, Yakima, 005+33cicast Electronics see ad p 162 TV, i.ee ad p 117 Washington; FM, WNHU, New Haven, Conn.; TV, WTCN-TV, Minneapolis, 7 I'mics see ad p 18 Minn. ,(10'01-EMBER, 1976-BM/E 151

www.americanradiohistory.com Measuring Television

Transmitter Noise By Andrew J Fandozz

To get a picture of the true performance of a TV transmitter, one of four alternative broadband noise measurements (30 Hz to 4.2 MHz) are necessary.

Although much has been published in recent years about TV transmitters, to date none have been adopted. I- the linear and non-linear distortion present in television frequency noise degrades performance since it is an transmitters, much less attention has been directed to correlated ensemble of pulsed energy. The random II( noise performance. Noise performance of modem TV has characteristics similar to those of the desired vi transmitters is one of the most important parameters to information. Such energy in the high frequency range consider when evaluating visual transmitter per- 4.2 MHz) does not seriously affect the quality of mo formance. chrome transmissions, but is a very serious concen The generally accepted noise specification of present today's color transmission. High frequency noise car day broadcast TV transmitters is set by EIA RS240. demodulated in the receiver and can cause low freque However, it specifies only hum and low frequency noise variations in the color along with undesirable picl (30 Hz to 15 kHz bankd), mainly the correlated ripple smearing. This can be observed on a high quality pici associated with power supplies. monitor if these levels are greater than -55 dB re The hum and noise, referenced to peak-of-sync, is enced to the peak-of-sync. better than -50 dB in most modern competitive trans- There are many high frequency noise measuring to mitters. Meeting this level, however, is not a sufficient niques which detect degradations of picture qua indication of the true performance of these transmitters. whether it be caused by thermal noise of active devil I When demodulated and observed on an oscilloscope, noise generated in the modulation or mixing process this noise will show 60, 120, 180 and 360 Hz other. They include: frequencies-i.e., they are power line related. These 1. Visual noise comparison components may be reduced approximately 4 to 6 dB if 2. Oscilloscope channel comparison the transmitter is checked with the clamp circuits on. 3. Spectrum analysis However, due to the complex filtering required to reject 4. TV noise meter reading the sync frequency and to measure the noise in the 15 All of the above techniques are used in the broad kHz band, most broadcasters normally perform this test industry and give satisfactory results. However, vi in the AC coupled mode. This measurement then can using any of the above, one must understand the o only be used for a cursory check of noise performance. ation of his test equipment, and the uncertainty factc Although the -50 dB measurement of low frequency the measured results. noise shows that all power supplies are highly regulated To correlate the various high frequency noise t( and very well filtered, such signals can still be observed niques, the carrier-to-noise ratio is defined as follow on a color monitor. Therefore, the modern transmitter must be much better than the RS240 Standard and should Sync peak to zero carrier C/N - be measured in a way that reveals its true performance RMS noise capability. The above definition is used because EIA Stan( Further, this specification does not control the un- RS240 references the noise to the peak-of-sync noise that is easily observed on the color monitor desired domestic TV manufacturers use this definition to spe in the 15 kHz to 4.2 MHz band. Although there have the noise performance of their transmitter. Most many proposed standards for broadband noise of been equipment manufacturers refer the RMS noise to peak-to-peak amplitude of the picture signal, or the Mr. Fandozzi is a staff engineer for RCA Television plitude between blanking and white signal. There Transmitter Engineering, Meadow Lands, Pa. when using such equipment, a conversion factor

152 SEPTEMBER, 1976- www.americanradiohistory.com Sideband response of RCA F-line Fig. 2. Gray picture with -50 dB carrier-to-noise 'Jitter. ratio.

N RATIO IRE UNITS OF NOISE 40 9.6 45 5.4 5 0 3.0 5 5 1.7 6 0 0.96 IRE units of quasi-peak noise for various tins.

Fig. 4. Bar magnified five times .40 with noise generator off.

eo be added to reference the noise to 100% carrier Fig. 2 shows a 50% APL video signal with -50 dB ation. These conversion factors are given in the noise level. This figure, along with the data in Fig. 3, is roriate sections of this article. included to enable the broadcaster to make an approx- RCA transmitters used in obtaining the following imate evaluation of his transmitter performance by com- measurements have a sideband response as shown paring the width of the video signal to the width of the I. 1. signal generated by his transmitter. Fig. 4 shows the noise performance of a typical RCA F-line transmitter aid noise comparison technique with the bar magnified five times and the generator noise if fis technique is becoming popular since the broad- off. Fig. 5 shows this bar with the noise generator set to

- r at can measure the noise performance of his com- - 59 dB or -63.24 dB referenced to peak-of-sync. From nacransmission system while the transmitter is in ser- this figure, one can see that the high frequency noise of )4e However, this paper covers only out-of-service the transmitter is less than the capability of this tech- lorfmance on the transmitter and does not attempt to nique. This is, however, an excellent technique to de- we the complete transmission system. termine if transmitted noise is less than -60 dB even F( this test, a Tektronix 147A Generator is inserted with the uncertainty of the measurement. (It will be nth en the demodulator output and the waveform moni- shown in the section on TV Noise Meter Reading Tech-

1 iput. The generator connections used are "program nique .that the noise in the 10 kHz to 4.2 MHz band is e n" and "preview monitor out." This generator -65.2 dB for this transmitter.) hies part of the line and inserts a calibrated noise level This offset voltage is used to calculate the carrier-to- rig the deletion interval. The transmitter noise is then noise ratio from the following equation: (Tared with flat noise generated in the 147A the 2.28 mator. Although the noise generated in modern C/N = 20 Log (-s itnnitters does not have a completely flat energy spec- S is measured in Step 7. -n this measurement is accurate to within 2 dB since where the voltage separation rest factor for random noise is generally constant; From Fig. 8, the carrier-to-noise ratio is calculated as: iipproximaies 6 for the energy spectrum of present 2.28 C/N = 20 Log - 63.6 dB F-line transmitters. This system is capable of k.0015

= fairing noise to -59 dB referenced to 0.70 volts. for this RCA transmitter. ilreference is converted to peak-of-sync by adding In general, the above procedure is a very quick and )llowing conversion factor to the indicated noise of convenient method to check the high frequency noise enerator. performance of a transmitter during normal maintenance u., without requiring any specialized noise measuring CF =20 Log-- -4.24 1.14 equipment. ierefore, we can measure a -63.24 dB high fre- comparison icy noise level referenced to peak-of-sync with this Oscilloscope channel technique Inique. Many broadcasters are using this technique for meas-

FEMBER, 1976-13M/E 153

www.americanradiohistory.com random noise is defined as one standard deviation, TELEVISION TRANSMITTER NOISE can be measured by using the following proced I. Calibrate both traces of a dual-trace oscillos uring high frequency noise since no specialized noise measure identical voltages in the maximum sen measuring equipment is required. In addition, this tech- position. nique has been proven to be accurate within 3 dB for TV 2. Connect both channels of a dual-trace scope transmitters, since the high frequency noise in the 100 output of a demodulator. kHz to 4.2 MHz band closely approximates the Gaussian 3. Set the transmitter input signal to gray p distribution which is required for this measurement. The This can be varied from black to white to meas distribution of noise density is defined as follows: change in noise performance with brightness. -x2 4. Obtain a display as shown in Fig. 6 in the f(x) e2a2 coupled mode. 5. Change the offset of one channel until I where x is the random noise variable and cr2 is the vari- darkband appears as shown in Fig. 7. ance of the noise. 6. Change the offset of this channel until For this noise density function, the RMS value of the darkband disappears.

Fig. 5. Bar magnified five times with inserted noise Fig. 6. Bar magnified to maximum sensitivity of set at -63.24 dB. scope.

Fig. 7. Channel offset. Fig. 8. Channel offset for twice the RMS noise.

Fig. 9. Visual and aural carrier with 60 dB C/N. Fig. 10. Visual and aural carrier of an RCA F-line transmitter.

154 SEPTEMBER, 1976- www.americanradiohistory.com Remove the input to both channels; AC couple the weighting filter (Christopher-Barstow curve) which is yie and measure the voltage offset between these two recommended by the CCIR and matches the sensitivity ,Niels as shown in the bottom trace of Fig. 8. of the human eye to observe noise voltages on TV screen. This high frequency noise is harder to detect on a otrum analysis technique monitor due to its fine granularity as compared to low the other techniques presented in this report re- frequency noises whose large grain size tends to overlap , u rthe use of a television demodulator which, due to and smear the picture. The attenuation versus frequency r iherent noise, could limit the range of this meas- for this weighting network is given by the following i rent. Therefore, many broadcasters like to use the formula: is cum analysis technique to investigate the noise level vi r fp& transmitter. When using this technique, one must Attenuation = 10 0 .27f 1.'37):1 n (stand the operation of a spectrum analyzer and use Log El ( ) L 1 + apropriate conversion factors which are: 2 1 + (-0.3f9 1 1.Conversion due to the limitations of the Ohmic display. Conversion from 300 kHz bandwith of the spec- where f is the frequency in MHz. The plot of this equa- inalyzer to 4.2 MHz. continued on page 156 first conversion is required due to the Log display j . tends to amplify the noise peak more than the Signal-to-Noise Ratio components of the noise. This factor is 2.5 dB. The I factor converts the 300 kHz bandwidth of the Bandwidth White Gray Black urn analyzer to the 4.2 MHz bandwidth of the 40 Hz to 10 MHz 62 60 61.2 (signal. This conversion factor is given by the fol- 40 Hz to 4.2 MHz 62.2 60.2 61.4 10 kHz to 4.2 MHz 65.8 65.2 66.2 ig: 10 kHz to 10 MHz 65.3 65.0 65.8 4.2 100 kHz to 4.2 MHz 71.2 70.4 70.0 CF = 10 Log -= 11.46 dB 100 kHz to 10 MHz 70.4 69.5 69.4 0.3 Weighted Noise 62.5 60.6 62.5

b total conversion factor, therefore, is +13.96 dB. Fig. 11. Noise performance of an F-line transmitter. simount must be added to the display noise to de- e the C/N ratio.4 i. 9 shows the spectrum of the visual and aural 1 , with a C/N ratio of +60 dB, and the reference set 0 dB. The RMS noise is obtained by adding 16 dB to the level shown in the video band, with the lz video filters of the spectrum analyzer on. There -6

,wever, a 3 dB uncertainty when making meas- dB -8

. nts in this range due to limitation of the analyzer. -10 10 shows the same spectrum of an F-line trans- :. This figure shows that the high frequency noise of -12 ansmitter is lower than the noise measuring capa- 14 10kHz 100kHz IMHz 10AIHr Ilit s of the analyzer, since the noise floor in the video FREQUENCY lticis at the same level as the noise of the spectrum ...A alter. Fig. 12. Random noise weighting curve. .i! r; shown in the next section that the high frequency 's in this range is typically -70 dB. This technique h nly be used to determine that the high frequency is less than -60 dB referenced to peak-of-sync, ir the error increases as the input noise approaches Do You Need A New Transmitter? g"- )ise limitation of the analyzer. Improved signal transparency is a major requirement by broadcasters in today's highly competitive TV indus- i I oise meter reading technique try. With today's technology in high power solid-state modulators, amplifiers and voltages regulators, Orr-ATV Type a noise meter such as Rohde and Schwarz, broadband unweighted noise level of -60dB over the D'" PS, is probably the most accurate, repeatable, and entire video band to 4.2 MHz can be achieved. gtt instrument for measuring both low and high fre- ezy noise. This meter measures true RMS noise di- This type of performance eliminates transmission degradation due to the undesired noise generated in the -1/ on the video signal when one references 0 db to 1 transmitter and assures the performance with time due volts. Since peak-of-sync is defined as the refer- to the inherent stability of solid-state devices. , the following conversion factor must be added to aeter reading: Getting a performance improvement of this magnitude older TV transmitters that only met 0.714 over a -50dB rms CF = 20 Log - -4.06 dB noise specification over a bandwidth of 50 Hz to 15 kHz -1.14 (when referenced to a sine wave voltage that mod- meter enables one to evaluate the transmitter's noise ulated the transmitter from zero carrier to peak-of-sync) ormance over various bandwidths by use of a select- is a challenge that should receive serious thought. filter.5 The various bandwidths of these filters are d in Fig. 11, along with the performance of an RCA ne transmitter. There is also a switchable noise

,,frEMBER, 1976-BM/E 155 www.americanradiohistory.com TELEVISION TRANSMITTER NOISE affect the overall picture quality; a requirement in bit casting today. This conclusion is in agreement wits data presented in Reference 1. tion is given in Fig. 12. This filter improves the broadband noise by less than 1 Reasons for the low noise performance of dB in RCA transmitters which indicates a very low, high transmitters frequency noise figure as shown in the data of Fig. 11. One of the main considerations in the design con( From this data, it can be seen that the total noise is 5 leading to the hardware selected for the RCA F dB less than the -55 dB which is accepted as the ob- transmitters, was the optimization of picture quality servable noise level on a TV monitor. Also from this achieve this goal, design features pertaining to low r figure, we can see that there is little change of the noise performance were required in these transmitters. T performance over the brightness range from white to features include: black. Direct carrier high level modulation, which inhere Although this is the best technique to measure TV has better noise performance than other types of noise performance, it is mainly used by equipment level modulation systems due to the lower numbe manufacturers and large networks since the equipment is linear amplifiers, and the absence of a pump chain usually considered by broadcasters to be too expensive mixers required in other systems. for the limited use at a typical TV station. Regulated DC filament, bias, and screen p( supplies on all tube stages to minimize noise. degradation Observable noise Low incidental phase modulation to reduce any n The final and most important requirement in de- generated in the system due to amplitude-to-phase r termining the minimum noise performance is the sub- ulation conversion. jective effect of noise on the viewing monitor. An ex- Reference oscillators selected for minimum side( periment was conducted to determine the worst case phase noise. noise that experienced TV observers could detect. This High level sideband filtering to attenuate lower ! experiment used not only flat noise, but various un- band noise energy that is generated in the high powe desired discrete frequency signals, since correlated noise stages. is much more objectionable than uncorrelated noise. The Finally, these transmitters incorporate hard clan test was performed to determine the maximum level of and an overall feedback circuit to reduce any un noise that would be imperceptible to expert viewers. The low frequency noise that is generated before the tr test signals used were highly saturated reds, which are mitter input. This reduction can be seen by compt very sensitive to noise degradations and gray pictures. Fig. 13 which shows 100 IRE units of undesired 6( From the test, it was concluded that noise performance modulation on the input, to Fig. 14 which shows of -55 dB was required to satisfy all observers,-in that, transmitter output. These figures show approximate the noise inserted into the picture would not visually 35 dB improvement. Also, the video input circuit these transmitters have been designed to operate wit 8 V peak-to-peak common mode signal with greater, 40 dB common mode rejection. Conclusions From the above, one can see that broadband r measurements are required to determine the true formance of a TV transmitter. There are many niques, all of which are well suited and acceptab' measure the minimum requirements of observable n, The one that a particular broadcaster uses will be termined by the equipment that he has available. It is recommended that new standards be adopte the specification of unweighted broadband noise IA should be -56 dB below peak-of-sync. Also, se Fig. 13. Transmitter input. consideration should be given to specify the signs noise as a ratio of peak-to-peak amplitude of the pis) signal (blanking-to-white or reference of 0.714 yob the RMS noise. The typical transmitter crest f should also be specified. Along with these specificat the low and high frequency components should be ; ified separately.

References

I. J.R. Cavanaugh and A.M. Lessman, "The Subjective Effect of F Noise Spectra on 525-Line NTSC Color Television," foul SMPTE, 83: 829-835, October, 1974. 2. L.E. Weaver, Television Measurement Techniques, Peter Pert Ltd. 1971. 3. C.W. Rhodes, "Measuring Distortions in the Television Signal, tronix, Inc., 1972. 4. "Spectrum Analysis Noise Measurements," Hewlett Packa plication Note 150-4, January, 1973. 5. R. Feldt, "Measurement of Noise in Video Systems," Journal 5 Fig. 14. Transmitter output 77, 458-466, April, 1968.

156 SEPTEMBER, 1976- www.americanradiohistory.com RTS SYSTE MS

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Service Card www.americanradiohistory.com If you haven't done so already, send in your ideas for BM/E's most popular feature. The 1976 contest will be closing GREAT shortly. Remember, there is no limit on the number of ideas that one contestant can submit. And don't forget to vote on all IDES published ideas. CONTEST

the cable to be tested is plugged into 21. Inexpensive instant opposite ends of the box and four 22. Read-out System f( phase and continuity LEDs (marked *) will come on if phas- Checking Cart Logging ing is correct. Any other pattern of checker for audio cables. lamps reveals an error. Data Before Use. Andrew C Blanchar, Maintenance This checker can be used with any Bob Tremblay, Eng. Supervisor, Engineer, KGO-TV, San Francisco, type of three-pin connectors for audio, KREM, Spokane Wash. CA intercoms, or power, and is especially easy when checking adapters such as a P-3 plug to a XLR-3 To the correc Problem: To design a one-step jack. Problem: check phasing and continuity checker for If colored lamps are substituted for of logging data on carts without audio cables. the LEDs, the resistors should be re- through an on-air logging decode Solution: With the circuit shown, moved. Solution: The contact closurt f the Gates Criterion 80 record unit used to pulse a 7490 counter anc play the results on a single LED out. emissiS RwuNI Schmidt Trigger ICI shapes tIcks PLUGS coming pulses and feeds them t 610st P3 PIN I OK NI 7490 counter and also to IC2 LO 0 P/N3 ERROR output of which will remain ceases, P/N.2 Output) until the count L LO will cause the count to latch in IC count XLR 3 ERROR be read out while the unit cot P/N / SHIELD next digit. IC2 also resets the P/N3 EON &AM It I is adjusted to allow the 741 P/Na ONE erf z realize the count has stopped. ERROR strobe the latch before the next HI ERR starts. 1.0 ERR The unit was built up on a SNIELD 1, ON board and mounted on the tape The readout socket was glued I left side of the tape entry slot. volts can be derived with the L from the 24 volt supply of the Blanchar's phase and continuity checker for audio cables recorder, and is on only when a I inserted. IC6 is a resister chip, al be replaced with separate 150 resisters.

158 SEPTEMBER, 1976- www.americanradiohistory.com 23. Simple Cue-Tone

RE/90 01/7" Defeat for Cart Player Ted Hicks, CE, KUGN, 4 8 C p E / /3 /0 7 2 // Eugene, Oregon

yec Problem: The station needed a front panel cue-tone defeat on ITC cart machines. Solution: If the tertiary cue tone /V /2_ // /0 option is not used, that particular front panel button and lamp can be used. 9/4 Cid/ X.S-5R a new button and lamp will /C*6 Otherwise cp 6,c6. continued on page 160 2 3 6 7

/3 /2. // /0 9 /3" /V

'RI 74'1/7 IC,

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Reser /2 9 g" 2 If 3. Complete access to pins and connector insert 7#90 /C3

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Field-repairable '9mblay's read-out system for ecking cart logging data before A damaged TV cable connector can problems. No special tools re- e. put a camera out of action just when quired. Available in mini and you need it most. But BIW cable standard sizes. Both East and with the new #85C Field-Repair- West Coast facilities assure prompt use, play and as the the tape, able Connectors can be fixed on supply and fast service on BIW . are displayed, read them you can the spot. These unique connectors cable and cable assemblies-the ne at a time until all five have are easily disassem bled for fast line preferred by local TV stations )tred. I also used the unused Q access to damaged pins or other and every major TV network. tit of IC2 to turn off the decimal when the unit is counting. Boston Insulated Wire & Cable Company e unit can be made more elab- 65 Bay Street, Boston, Mass. 02125 Tel: 617-265-2102 by adding 4 more latches and Court Street, Plymouth, Mass. 02360 Tel: 617-746-7650 ay circuits, but this one has Other Plants and Sales Offices in Los Angeles, Calif. 90061 (213-532-9064) :d our Bad Coding problems. It Hamilton, Canada (416-529-7151) Kingston-upon-Thames, U.K. (01-546-3384) Singapore (374797). ; us a chance to check the coding :orrectness before the cart is put service. Circle 238 on Reader Service Card

'EMBER, 1976-Brvi/E 159 www.americanradiohistory.com GREAT IDEAS

J3)Y-ES have to be added. All wires connected to the old button should be dis- FIRST connected and stored. The new circuit is supplied with +24 volts from J304-8 CARTRIDGE when the machine is preset to record. When the cue defeat button is pushed, with full internal guidance the SCR fires, lighting the warning lamp and forward biasing Q I thereby with reel-to-reel fidelity grounding the original ITC cue defeat (20 Hz to 15 kHz) circuit control line, J304-14. The circuit resets when the machine is taken with FM bdcst. phase stability out of record mode. (better than 90° to 12.5 kHz)

with engineering plastics Rules for BM/E's Great Idea Contest 4. Voting: Every reader of BM /E is entitled to rank the ideas published.e, with a replacement guarantee 1. Eligibility: All station personnel are can be done on the Reader Service. against any performance eligible. Consultants to the industry may in the magazine or by letters or cardca failure within advertised enter if the entry indicates the specific to the BM/E office. To vote, readerel station or stations using the idea or should select the three ideas they like specifications on properly concept. Manufacturers of equipment or and rank them 1, 2, or 3. aligned equipment. their representatives are not eligible. 5. Winners: Relative ranking of aux 2. How to Enter: Use the Official Entry month's entries will be published Form on this page or simply send BM/E. a periodically. Top-rated entries for va description of your work. State the categories will be republished in late i

objective or problem and your solution. for a second and final round of scori 1 Include diagrams, drawings, or glossy Final winners will be picked in Febn, photos, as appropriate. Artwork must be 1977 and notified by mail. Winners w t

legible but need not be directly published in the March 1977 issue o : . STILL THE ONLY CARTRIDGE reproducible but not exceeding three in BM/E. INDIVIDUALLY CHECKED FOR number. Camera reproducible material is 6. Prizes and Awards: Three top p preferred. Length can vary, but should not PHASE, FREQUENCY RESPONSE will be awarded: a slide rule engine... exceed 500 words. reserves the AND OVERALL PERFORMANCE BM/E calculator for the entry receiving the. II right to edit material. Entry should include: votes in the respective categories o' f Name, title, station affiliation, and the FM and TV. Ten pocket business class of station-TV, FM, AM. Indicate if calculators will be awarded as secol idea is completely original with you. prizes for the highest voted entries I 3. Material Accepted for Publication: following additional categories (exce BM /E editors will make all decisions three top winners): audio (three prizezet- regarding acceptability for publication. If each in categories AM, FM, TV; RF I I duplicative or similar ideas are received, prizes one each in the categories ol, t BM /E editors will judge which entry or FM, TV); Control (three prizes one et 4 entries to accept. A $10 honorarium will be the categories of AM, FM, TV); Video paid for each item published. prize in TV).

Mail to: Editors, BM/E 1976 295 Madison Avenue Entry Fon. New York, New York 10017 Name Title Station Call Letters City State Zip Telephone No. Licensee Class of Station at which idea is used (check one) TV FM (ARISTOCART) AM Category: Audio RF Video Control THE CARTRIDGE FOR PEOPLE Objective or Problem: (in few words; use separate sheet for details WHOCARE HOW THEY SOUND

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or the one nearest r (Haar t you(, Solution: (Use separate sheet-500 words max) ARISTOCAR I DIV. WESTERN BROADCASTING LTD. 505 BURRARD ST., VANCOUVER, CANADA V7X 1M6 TEL: (604) 687-2844 III LX: 04-54639 I assert that, to the best of my knowledge, the idea submitted is original with thi DISTRIBUTORS: CANADA - McCurdy Radio Indust station; and I hereby give BM/E permission to publish the material. , I rut loronto, Ont L. A. Varah Ltd., Van, otrver, IS ( GREAT BRITAIN Selkirk Commune ations I inn it ed, London, Eng. AUSTRALIA - Synte, f Iw iron', Signed _Date Distributors, Pty., Castle COvI, N S.W Circle 239 on Reader Service Card L

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APPROVED White's solution to excess noise in the studio by the FAA

TOWER LIGHTING ISOLATION TRANSFORMERS switches on the door and window. The 750, 1750, 3500, 5000, 7500 Watts reaching high-school switches were tied to a normally FEATURING... closed relay as shown in the scheme. itors of FM station to HIGHER EFFICIENCY This simple circuit worked quite well. IMPROVED REGULATION late noise. It created no clicks or pops. The first FIBERGLAS INSULATION White, CE, WLTL, La Grange, week was a horror, but that there EPDXY ENCASED was no dead-air and no back-ground VERSATILE MOUNTING noise. The station now sounds more professional and the student operators CONTROL UNITS to meet stem: WLTL is a high school have learned an important part of their Standard or Special Requirements. ) (10 watt) FM station in La skill. Ill. Like most stations of this NLTL is located in a heavily LAMP FAILURE 25. Providing A Recue On ALARM SYSTEMS . section of the school. To FOR UNATTENDED matters more interesting, the The TCR 100 After Record INSTALLATIONS nd choir lessons were given in In the A-B Dub Mode. etion. Needless to say the station IIIPPM1611 :posed to all types of noise. If a Barry Erick, Studio Engineer, WBRE -TV, Wilkes-Barre, PA. left the studio door open it TUBELESS PHOTOELECTRIC ,d as if there was a small war CONTROL UNITS in behind him when he went on Indoor or Outdoor To allow out TCR 100 to Unhappily, this was far from a Problem: Many Sizes and Voltages curance. play re-cue following an A-B Dub. Following a normal recording, the cart .ition: To solve the problem I play re-cues but following an A-B BEACON FLASHERS my fellow students to close the IQSingle and Multi-circuit Dub, the recorded cart rejects and f the studio before they went on I Indoor or Outdoor then, if the cart is to be checked out, as in there. When this didn't work, all of ours are, the operator must then Nile I was still a senior in the push the Play Cue-up pushbutton. FOR TALL TV TOWERS , I put normally-open reel Solution: In the PCL nest a wire wrap change was made, and a gate and LAMP FAILURE INDICATOR a diode were added. This is compatible PANELS with all TCR 100's thru the 100A 6000 B (in dub) Request our exclusive TALL TOWER VOTE series. The cart normally Specification Guide. rewinds and rejects when the B Reject/Rewind FF is set by gate 572 HUGHEY & PHILLIPS, INC. NOW! (an EOP A-B dub). To get the B tape Manufacturers of a must 300mm Beacons, Obstruction Lights, photocontrols, GREAT IDEA to recue and not reject, change Beacon Flashers, Microwave Tower Hazard Light Control be made here. First we disconnect gate and Lamp Failure Alarm Systems, Complete Kits for: ALLOT ON READER Tower Hazard Lighting, Deicers, & Talking Circuits, Tower 572 from the AB Dub Reject bus and Lighting Isolation Transformers, Airport Runway Lighting SERVICE CARD connect it to the A Recue Rwd FF, 3050 N. California St., Burbank, California 91505 continued on page 162 Circle 240 on Reader Service Card

MBER, 1976-BM/ E 161

www.americanradiohistory.com ent location diode is available, GREAT IDEAS listed: 5300 multi-Deck DELETE: element 509-9. We then add a gate to G3-16 to 37-45 duplicate element 546 and feed its G7-45 to G14-4 output to B Play Recue Request bus at ADD: element 605-10. (In place of this new G7-45 to G11-9 (572-45 to 509-9) gate, a diode could be used from gate G7-47 to H8-11 (572-47 to new gags 572-45 to 605-10, but there is only one G7-49 to H8-12 (572-49 to new get. available, and that would be used in H8-8 to H9-10 (new gate to 605-10) *G7-45 to G5-35 the next step. you may If you wish, (572-45 to new diode cathode) add a diode in the backplane area in- *G5-25 to G3-15 (anode to 222-15) stead of adding a gate.) Now that this *if G5-25&27 are used and G5 is a 4 is done there is one nuisance to be PC11A (TCR 100A) taken care of. When the A cart is re- substitute the following two wraps in 01 cueing, following the recording, the of the starred ones only. Record Recue indicator will come on, G7-45 to G5-52 due to the A Rec Cueup FF not being (572-45 to cathode new diode) reset, and this is where we use the one G5-46 to G3-15 free diode in the PCL nest. We add a (anode new diode to 222-15) diode between gate 572-45 and 216-15 Also, on early machines, it is not pi to set the inhibit during an AB Dub sible to preview-play a cart in the recue, just as it is on an AB Dub Dub mode. RCA now incorporates.. reject. The wire wrap changes, com- feature by changing, in the SCL m patible with all TCR 100 & 100A's, at 1160-47 the AB or AB Dub tl except for * diode, for which a differ- logic to just AB Option. RCA d

The most up-to-date multi-deck cart machine in the industry is / sr available .2/4 now for immediate R11, /NN/ delivery. ADD 165 A7 The 5300 provides these Spotmaster 1/7 exclusives: AB oi/B 47 "7 esfr Phase Lok Ill head bracket - the most EOP g 49 X X ip_14 /780i, 9 A'EJEL7 accurate technique available for head- DELETE if to-tape positioning. 43.2. A unique cartridge guidance system - insures accurate, positive cartridge positioning. .670 Total modularity - the complete HOD 1 Neal electronic and mechanical package is accessible and removable. 09 _J Rear panel LED displays - duplicate )°' front panel functions; a significant aid in servicing and adjustment. After sale service backed by eight - itz NEST regional service centers in the U.S. 605 and Canada. Fig. 1. Play recue following AB dub by Erick Delivery from stock new low price Call BROADCAST ELECTRONICS, INC. 8810 BROOKVILLE ROAD SILVER SPRING, MARYLAND 20910 PHONE (301) 588.4983

I == Fig. 2. PVW play in AB dub option A Filmways Company

Circle 241 on Reader Service Card

162 SEPTEMBER, 1976- www.americanradiohistory.com y changing three gates (freeing id using an inverter in place of a We did it by moving one wire: -E: It's in the cards 47 to C4-40 (1160-47 to 947-40)

8 to C4-40 (1109-46 to 947-40) able to have the machine to .following a dub saves approx- .y 20 seconds of wait between it : and playback. Of course the 'ill reject instead of recue, as 14 . c if the Reject p.b. is pushed or bed cart is longer than the dub mit:

if Jsing Hi-Fi colphones On Broadcast

- A. Erickson, Chief Engineer, - Commerce, TX

1v4 -rolem: To be able to use the hi-fi style headphones with typ- and Integra 3 offers you a full deck roadcast consoles. Mike preamps Mike preamp/limiters oltion: Since most of the hi-fi Line preamps Stereo ones are low impedance they preamp/limiter Line amplifiers mike tvork well with the consoles that Stereo preamp/limiters the monitor across the program Booster amplifiers Stereo line preamps ith isolation resistors. Our Bridging amplifiers Stereo bridging preamps Stereo amplifiers Stereo booster preamps ,ty 80 is of that type. I noticed _used pair of terminals that were Stereo preamps Monitor power amplifiers nto connect to the lobby speaker, Four-channel Stereo equalized phono preamps booster amplifiers Stereo equalized tape preamps : an experiment connected the HV/1LC headphones across Distribution amplifiers Switchers Mixing amplifiers The results were everything I Line-level transformers cask for. The usual volume of the Power supplies Stereo line-level transformers speaker was a little lower than Preamp/compressor Tone oscillators for comfortable volume in the Mike preamp/compressors Stereo mixing preamps Itiones. When the control room Stereo mike preamp compressors Tape automation oscillators -phone was keyed the headphones Stereo preamp/compressors Tape automation notch filters nt mute, nor change volume. Preamp/limiter Mono and stereo remote controls. We have more cards and they're less expensive.

Whether you are in broadcasting, recording, sound reinforcement, S 'EAKER' TIP ElINAL 4132 Ry. communications, engineered sound or theater sound-we have 4SWA 80 2LE SLEEVE NO the cards for you. COMVEL770A1 Integra 3 is a complete system of audio processing components and accessories in modular form built around a large number of the highest quality, standardized PC boards which use the latest IC technology. The boards are compact in size (only 21/2 by 71/2 final configuration retained the in.), use epoxy-glass 2-ounce clad material with precious-metal- ng transformer (48 ohms to 16 plated contacts. The circuits are the latest IC op amps and other to protect the monitor amplifier similar components which feature widest frequency range, lowest ny possibility of shorts. I used a distortion, highest signal-to-noise ratios, best overall perform- headphone jack wired to the tip economy and reliability. Servicing is simplified by ig. This will now provide mono ance, maximum when a standard stereo head- the slide-in/slide-out modular design. is plugged in and as well will For complete details, contact Robins Broadcast & Sound Equip- with mono 'phones. The cost of ment Corp.,* a Robins Industries Corp., Commack, N.Y. 11725. :t-up is almost nil. Telephone 516-543-5200. Formerly Fairchild Sound. additional advantage of this is that the operator can monitor oduct through his headset since in audio from the modulation 1°,1 O =1=1 or to the external monitor input console. Circle 242 on Reader Service Card

EMBER, 1976-BM/E

www.americanradiohistory.com EQUIPMENTBROADCAST

'Super Synchronizer' from NEC and measures 4 x 5 x 111/2 ins. an SWITCHCRAFT Sintronic FM Transmitter highlight 3.5 lbs. BM/E's September Survey of New Broadcast Equipment FM Exciter FM exciter Model 675 for use it standard FM broadcast band is al solid-state unit equipped with sil 'Super' Frame Synchronizer 300 transistors, diodes and ICs. It is the totally synthesized FM exciter or The "Super Synchronizer" is a new market and has a highly stable 8 version of the first television frame crystal as the reference. Its divide, synchronizer which won the 1975 cuits can produce any output frequ Emmy award for outstanding achieve- in kHz increments in the FM b ment in engineering. The new version adds a time base correction adaptor which has an infinite correction window and offers the capability to correct time base errors from

IIIIIII - For example, 10 kW RF radiation unm Using a phase-lock loop circuit, "IOU may be allowed from the antenna, but oscillator WW1 frequency-modulated due to a long feed line, 2.5 kW are lost hibits the same frequency stabilil in the transfer of power from the trans- the 8 MHz crystal, supplying full I mitter to the antenna. In such cases, the with no spurious responses. $1995 DMF-10B/DFM-14B would be set at CORP. 12.5 kW thus providing full authorized output power at the antenna. The new transmitter utilizes direct Video Distribution Amplifier 111111111111111111111111111111 FM all solid-state exciter, grounded 111111111111111111111111111111 The Model 110 Video Distrib 1111111111111111,1111:11111111 grid power amplifier and conservative ' w A 111111111111111111111111111111 design features. A two cabinet design Amplifier features 6 outputs permits power operation as a one kW maximum output level of 2.0 3.0 transmitter from a driver section in the Maximum input level is up to from -F 111111111111111111111111111111 event of power amplifier shutdown for and the gain is adjustable lull 111111111111111111111111111111 to -20 dB, with a gain stabili IIIIIIIIIIIIIIIIIIIIIIIIIII1 maintenance. SINTRONIC CORP. 11111111101111111111111111II111 ±0.05 dB. Response is ±0.1 dB MHz. Three model 110 VDAs c Audio Cable Tester 303 horizontally mounted into the be vert f U-matic or other helical VTR signals. A time-saving, reliable method of frame or ten VDAs can 103 frame. DI- In addition, the adaptor allows for open checking audio cables is provided by mounted into the loop operation with only a single con- the Q-Chek Cable Testers. The QC- INC. necting cable for non-phased input 1001 determines performance status of video. No feedback timing pulse is re- audio cables with over 180 com- ENG Battery Sequencer quired for VTR. binations of standard audio termina- The video signal transmitted from tions. QC-1002 offers 350 possible The Battery Sequencer will the VTR in the field or studio by the connector combinations. matically charge up to 5 HL-33/3 "Super Synchronizer" enables the The suspect cable is connected to the gami battery packs at one time. time base correction and syn- tester and a series of pushbuttons are chronization features to operate simul- depressed sequentially to instantly in- taneously. NEC AMERICA, INC. dicate cable condition with lighted buttons. Power for illuminated button Dual Power FM Transmitter 301 is supplied by a 9 Vdc battery; cabinet is made of rugged 20 gauge steel; tester This new FM transmitter has a dual power output capability, rated at both 10 kW and 14 kW; providing a con- For more information trollable Effective Radiated Power circle bold face numbers (ERP) in situations where the ERP is on reader service card. limited by law. battery is charged in sequence

184 SEPTEMBER, 197e www.americanradiohistory.com iected, regardless of state of ge. Full charge is indicated by a All-Climate Comm. Shelter 308 ) which indicates "ready." Five or A fiberglass communication shelter Datteries can be fully charged in ten that can protect any electronic system and full ENTER s or less charge is main- in any climate has proven effective in d by automatic trickle-charge rate. temperatures from 100 deg. below zero -.ZOLINI ELECTRONICS. to 160 deg. above. The prefabricated BM/E's shelters are more economical than a P tacement Heads for Mincom 307 similar structure would cost to.con- iirst hot-pressed, glass-bonded fer- struct on the site and are supplied com- THIRD ANNUAL , lead for Mincom studio recorders plete with all necessary power panels, :ailable in all track formats. The distribution panels, conduits, louvres, head is manufactured in hot- fans, air conditioners, heaters, wire- BEST STATION v ed ferrite with glass bonded gaps. ways, and specialized equipment. `head is plug-to-plug compatible Transportation is provided to the site. ti original metal head used in the PORTATRONIC. AWARD Time Code Editing System 309 Low cost SMPTE time code editing CONTEST system will plug in directly to un- modified Sony VO-2850 and, with slight modification, a playback-only unit such as the Sony VP-2000 may be used as the source machine. In addition to normal SMPTE time code format, an SEE DETAILS exclusive feature of this Microvision 20 system is the specially developed time code format called Microcode (TM), ON that permits both time code information and program audio to be recorded on P.-3-mm recorder. Manufacturer ex- the same audio channel of a tape, with PAGE 151 -1 :t this head to have a normal life the time code inaudible during play- niren times greater than the original back. Other features include built-in b a: heads. SAKI MAGNETICS. continued on page 166

:)MING SOON The 118th SMPTE Technical Conference & Equipment Exhibit Oct. 17-22, 1976, Americana Hotel, New York City Featuring: A 167-booth exhibition of professional film-making and television equipment. All major manufacturers will be represented. This is the only place in the world where you will find such a wide array of both motion picture and television equipment under one roof. As an example, nowhere else will you have the chance of handling Arri, CP-16, Eclair and Frezzi film cameras, or Sony, IVC, JVC or Hitachi video cameras in one room. And that's just cameras. Every other type of professional film and video equipment will be on display. Five full days of sessions where the latest developments in motion pictures and video equipment and techniques will be described by the world's leading experts in their fields. This year's conference will concentrate on the overall film- and tape-making process from original production through post production, distribution and exhibition. Social events, activities for spouses, coffee club and lots more. Special Added Attraction: A Motion Picture Production Seminar, sponsored by the PMPEA, with Walter Wood, Director of the Mayor's office for Motion Pictures and Television, mod- erating a panel made up of a top-name executive producer, a film director, a head of a major production studio, a TV programming executive, and a TV commercial film and videotape producer. Information, write or call: SMPTE, 862 Scarsdale Ave., Scarsdale, NY 10583 (914) 472-6606 - (212) 562-5708

Circle 252 on Reader Service Card EMBER, 1976-BM/E 165

www.americanradiohistory.com BROADCAST EQUIPM

& w 9 in. monitor that alternatei PERFECT TIM / \G tween video display of tape play and data display of editing informal and a Tape Protection System that; Low Cost ESE Right On Timers vents tape from being held in still fr for too long. MICROVISION SISTE CO.

Transmitter Conversion Kits

A new kit to convert the RCA BT BTA5H, BTA 10G and BTA 10 Broadcast transmitters from Th' high voltage power supplies to state power supplies is now avaihl ES-300: Four digit incandescent display, one hundred minute timer (99:59) with six controls: Count Up, Count Down, Min-Set, Sec-Set, Stop, Reset. $168.00 These kits are adaptable to many including cutback, ralf ES-301: Identical to ES-300 except with planar, gas discharge display. $185.00 figurations, power change or manual po ES-302: Equivalent to ES-301 plus fast-set lever wheel programing. $238.00 change. Delivery of these kits is ES-400: Three digit ten minute timer (9:59) with Start, Stop, Reset. $ 98.00 proximately 45 days according to ES-510: Four digit sixty minute timer (59:59) with Start, Stop, Reset. $125.00 manufacturer. WIKINSON ELECTS ES-500: Six digit, twelve hour combination clock/timer with five controls: Start, Stop, Reset, ICS INC. Fast Advance, Slow Advance. $150.00 STANDARD OPTIONS AVAILABLE: Kit; Slave; BCD Output; Remote Connector; 6' Remote Cable and Pushbutton Set; 220V A.C., 50Hz; Servo-Controlled 35mm Projector 9" or 19" Front Panel 31/2" high; 3 Wire Cord and Molded Plug. Tenths of seconds are available on all timers except the ES-500. The FR-35A is a servo-contrc Relay Contact Closure at Zero and/or Stop at Zero available on 35mm film projector that incorpoi ES-300, 301, and 302. Crystal Timebase available for ES-500. previously unavailable Custom options and special orders available. features intermittent projection systems. WRITE, WIRE OR CALL TODAY include: Instant Stop and Start; \ 5051/2 Centinela Avenue Inglewood, California 90302 (213) 614 -3021 able Speed Operation (0 to 48 fps) Freeze Frame. The projector opet Circle 243 on Reader Service Card at normal cine speed or high speed cine) in forward and reverse. For cine use the projector locks to line vertical sync or external drive sot The system meets world-wide st ards with no conversion required. ;

TCG/Reader Character Generator

Model SP-425-SMS SMPTE Code Generator/Reader and Char. Generator for performing econon TV editing generates and decode! SMPTE edit time code for any start video tape transport. In additior unit provides a video output signal is synchronized to SMPTE time during the generate and translate in i for superimposing an 8 digit dec display on any TV monitor. The I 111111111PL 111111111t. play provides updated time of d; hours, minutes, and seconds. phi! digits for frame numbers. A front I SMILE time display is provided and the Both of us can be yours in a color system operates with both b & w and (drop frame) formats. $3000. D FOR ONLY $113,500 METRICS, INC. Now a two camera BROADCAST QUALITY color video production system featuring the HARRIS TC-50 Test Pattern Slides the live color camera complete with all necessary A set of Tele-Pat precision test monitoring S E G & switching equipment provides all the basic measureme Installed for only $113,500 formation for consistently meetin formance standards for color andl Contact: SOUND SYSTEMS, INC. TV systems. Set includes the colt high 42-12 28th St Long Island City N Y 11101 212 786-4474 istration slides, the custom lution patterns, the linear gray Circle 244 on Reader Service Card SEPTEMBER, 1976- www.americanradiohistory.com BROADCAST EQUIPMENT

slides, and the color fleshtone patterns. Markel IJIDE ILM CHANT Series 100 and 200 slides are for use with 2 x 2 film chains slide projectors rHOUT and direct coupled equipment. Series 300 and 400 slides cover the 8 x 10 size :EDICATED CAMERA employed with Tele-Pat test pattern il- luminators II-RS and IV-C. Patterns SHARP may be obtained on 18 in. x 24 in. paper charts for use under normal scene CUT OFF lighting. TELE-MEASUREMENTS INC.

Directional Power Meters 314 AND BEFORE AFTER New directional power meters, Models GOOD 2001 and 2002 have been designed for Chrorrunance Pulse all communication system ap- PHASE12'2Tthrough FLM 4508 MILE mULTIPLEHER! plications. They are direct reading wattmeters with frequency ranges of EQUALISATION LSO e high cost of an extra color camera 1-4 GHz or 4-8 GHz respectively. camera adapts to film chain Power ranges are from 20 mW to 30 W. neconds Sub-Carrier The instruments consist of an indicator VIDEO ndard TV zoom lens unit and a measuring head connected by PASS SWEEP fTwo 35mm slide projectors in a 1.5 m long cable. The incident and BEFORE AFTER t mode plus 16mm or Super-8 reflected power are indicated on-sepa- VIDEO .!Multiplexer saves studio space rate meters simultaneously so that REJECT SWEEP .00 forms units at twice the price! different measurement ranges can be BNC Connectors lLow Cost independently selected. RHODE & 7512 Many Happy nplete technical details-- SCHWARZ. Delivery Users a Buhl. Fast ASK FOR BOOK 2035 'TICAL h Avenue Ultra- Isolation Transformers 315 Television Equipment Associates, Inc. a, Pa 15233 BILL P E G LER. Director t'n 007f, New high power Ultra Isolation Trans- Box 280 SOUTH SALEM . N.V. 10500 914. 763.5093 former and AC Line Regulator systems rcle 245 on Reader Service Card for protection of sensitive equipment Circle 247 on Reader Service Card against line noise and voltage fluctuations utilize a unique box shielded design to achieve maximum attenuation of power line interference caused ADVANCED by switching spikes, lightning strikes ELECTRICAL and other line transients. The trans- ENGINEER formers are especially effective for iso- lating large computer installations Mincom Division has an where line noise can create serious imediate opening for a BS problems, including data error, lectrical Engineer with a hckground in circuit design memory loss and equipment damage. td video signal processing. The regulators feature 98% efficiency smiliarity with SERVO Sys- (for lower equipment operating cost), ms, TGL, CMOS, Analog in- responses time of less than 1 cycle, and grated circuitry and micro - ocessors helpful. less than 0.1% harmonic distortion. SyLVANIA TOPAZ ELECTRONICS. cl uties include design, and de- 'lopment of video equipment, SUN -ototype assembly, and in-put Multi-Deck Tape Cart Machines 316 r test procedures and parts sts. GUN® 11/ Spotmaster Series 5000 Multi-Deck Portable Pro Movie Light you are aggressive, highly Tape Cartridge Machines are available for All Film - Tape - ENG totivated and eager for a tech- in 3- and 5-deck models, and feature One-hour full recharge Fingertip ical challenge, send your re- zoom, Camera-mounted ime in confidence to: on-off or hand-held Up to 50 minutes shoot- Dennis Nelson ing time 150/250 w. tungsten halo- Technical Placement Manager gen 15,000 c.pwr. spot 31/2 lbs. Staffing And Employee Resources in use Models from (list) $157 50 .M COMPANY-3M CENTER Nationwide service for over 25 years. ST. PAUL, MINNESOTA 55101 We Are An Equal Opportunity Employer M/F Same-day shipment anywhere in US. Rush delivery in Manhattan. nni (212) JUdson 6-1620 people still count here 3COMPANY We Aro An Equal Opportunay Employer MTV BARBIZON ELECTRIC continued on page 168 426 W. 55, NYC 10019 :ircle 246 on Reader Service Card Circle 248 on Reader Service Card

MBER, 1976-BM/E 167

www.americanradiohistory.com which has EQUIPMENT permits stepless adjustment of its been marked. A procedural BROADCAST ± 12 dB equalization range, as well as also included. 52.95 at stati continuously variable control over department stores. %Am-imp completely modular construction, center-frequency and bandwidth. In- hinged front panel, slide-out decks. cludes the "floating threshold limiter" Noise Transfer Eliminator plug-in electronics, and ribbon cable which minimizes "spring twang" and for increased reliability, versatility. provides absolute protection from over- The VIF 1002A is an and maintenance accessibility. They load. Comes in a standard 19 in. rack adaptor which has been de\ el are designed to withstand continual mount and is 31/2 in. high. 5695. eliminate mechanical noise t 24-hour operation and incorporate ORBAN'PARASOl NI) problems and reduce the w one-half inch thick slide-out decks, noise levels of Ampex tape rec The adaptor is a sophisticated massive air-damped solenoids, and a NPR Magazine Cover 318 direct drive hysteresis synchronous ational amplifier circuit. Each motor. All models have an audio Improved magazine front protection comes with a detailed calibration muting circuit that turns off the audio cover for Eclair NPRs is made of form showing frequency response and from any idle deck. Both 3- and 5-deck fitting rubber which will not get bent to noise ratio plus complete in %t machines may be rack mounted or used and absorbs shock, unlike metal instructions and a revised schem as table top models. BROADCAST covers. $15. ECAM COMPAN the Ampex model in which it is ELECTRONICS. used. It is designed for use in recorders equipped with the octal Protective Marking System 319 12SJ7 tubes, with the excepties Spring Reverb Unit 317 Ampex Model 3200. Vti- A new system for marking property and ist N ATION AL. Dual-channel Model 111B spring valuable equipment with an invisible reverb features the same basic electrical identification code has been developed. design as its single channel predecessor The system has the endorsement of in- Control Multiples System but offers a new bass control and surance agents and various police de- "quasi parametric midrange contro partments. The kit uses a marker that The CMUX-29 is a self-contained c applies invisible ink, and includes a trol multiplex system which allows Brink's emblem to warn that the item engineer to interface his control p with remotely located equips CMUX-29 is, in effect, a "black be L,...A. For more information which readily integrates into a s circle bold face numbers variety of systems applications. It c on reader service card. sists of a transmitter and remote ceiver and relay unit utilizing CV

What's New? IMMEDIATE DELIVER'ii

0 0 0 0 Capitol/Audiopak% 40 sec S2.00 Amtron AM5 70 sec 2.10 5-inch AC/DC Color Monitor 3.5 min 2.45 Professional an every respect, the Am- tron AM-5 features the ultra-dependa- 4.5 min 2.60 ble, single-gun Trinitron* color system. Professional, too, are the extras-R-G-B other lengths available gun switches, A-B selection of video input, internal/external sync, tally light and pulse-cross. BROADCAST CARTRID

o s 0 SERVICE 0 1227 N. Vine St. 0 2 0 0 Hollywood. Calif. 90038 Call Bryant or Bob (ATZO N (213) 464-5100 Reload service too! AMTRON CORPORATION P 0 Box 1038 Aptos, California 95003 (408) 688-4445 offer expires 10'31 76

Circle 249 on Reader Service Card Circle 250 on Reader Service Cat

SEPTEMBER -975- www.americanradiohistory.com available. The ITE-H5 Hydro Head utilizes hydraulic dampening in both pan and tilt modes and features a quick release camera mounting plate (per- manently attached to the camera), independent lock-in friction controls for logy, and accommodates as is 29 separate control functions two wire cable. IMAGE MAGNIF- , iN INC.

w.( Mixer 322 add-on accessory microphone ai -raters a low-cost, convenient add up to six additional low ;ence , balanced microphone aitqswitchable to line level) to a firdystem. The new unit is designed lave" mixer for Shure products both pan and tilt, adjustable control tv the M67 and M68 series micro- handle, and counter balance torsion ricmixers, the SE30 gated com- spring for any center of gravity re- i: )( mixer, the M610 feedback con- quirement. $850. INNOVATIVE TELE- and the M63 audio master. It VISION EQUIPMENT. rrpoowered from the nominal 28 to icic output of the attached master 324 nunr from a Shure A67B Battery RF Power Device For VHF you can now !we Supply. $181.20. SHURE The BM100-28 RF power device pro- test video TERS INC. vides 100 W of output power from a 28 V supply, for broadband high power performance peel Head for ENG 323 VHF applications. The new part is designed to be compatible with circuits i\ camera head specifically de- designed around the BM80-28 with objectively prfor portable, lightweight (up to only minor circuit changes. It offers t) 4)1 ENG and studio cameras is improved saturated power and rugged- ness at the same gain as the BM80-28, and operates over the 70 to 220 MHz Do you trust your eyes to frequency range. Guaranteed to with- detect the subtle changes in stand infinite VSWR at all phase angles your CCTV's performance? when operated at full CW power and supply voltages. COMMUNICATIONS Even perfect eyesight is TRANSFER CORP. enhanced greatly by the Vii Signal Source 1207 -a new 10 Channel Dual Mono Audio Console bar/dot generator that 325 superimposes a precise The S-21 Signature II 10 channel dual reference grid pattern over mono audio console is designed to meet your camera's image of a the needs of the professional broad- linearity chart. In an instant caster. Modular construction permits you can detect any geometric at will of high and low substitution distortion and adjust your level inputs to all 10 mixers. As factory equipped, monitor speaker muting and camera signal accurately. provided for tally relay circuits are The 1207 synchronizes to YOUR mixers I through 3. Features all transformer inputs and outputs, internal 12 line rates from 525 to 1225 - W monitor and cue amps, internal bar- in one internal and two / POCKET rier strip connections, remote switch- external modes. Price $595. ing contacts, step attenuators, internal GUIDE TO power supply plus proven RFI im- iTUDER munity. $3,245. LPB INC. ore you buy, let us show you line of professional audio prod- "Super Studio" Lens 326 HVISUAL 's. Write or call now for this new tHchure describing the complete The new 30X wide-angle "Super cider family. Willi Studer America INFORMATION 1. and has .,1819 Broadway, Nashville, TN. Studio" lens is light weight 'one 615-329-9576. In Canada: continuous zoom ranges of 16-480mm, INSTITUTE, INC. eider Revox Canada Ltd. Phone 2.1, for 11/4 in. cameras and 12.5-375, 110 '1-423-2831. Box Ohio 45385 1.7, for 1 in. cameras. It has an 33/Xenia, I M.O.D. of 15.7 in. and uses the stand- Phone (513) 372-8637 continued on page 170 Circle 252 on Reader Service Card

MBER, 1976-BM/E 169

www.americanradiohistory.com BROADCAST EOUIPPil

S-21 Ten Mixer Dual Mono Console

and Schneider patented interchani One way is the new LPB S-21 Signature II dual mono audio console. Its stereo servo systems and has 1.7x ran; companion, the S-20, is the other. Either way, you get 30 inputs for 10 mixers. tender capability. TELE -CINE. IN( The S-21, with plug-in capability for up to 30 miss, is ideal for mono broadcast and other professional sound uses, while the S-20, with standard features others CB Converter for Car Radio offer as options, boasts dual stereo program channels plus mono mixdown. Engineered to satisfy the most exacting broadcaster, both are perfect as the Citizen Band Converter converts centerpiece for the custom designed, mobile AM radios to receive all : wood-grained DiQ-') 10 studio furniture. channels without wiring cha Known as CB-11, unit has an There are two ways of finding out about nated front knob switch for ct these and all the other LPB products selection, and an all metal case th!

available . . as a shield to cut down ignitio One: write motor noise and a built-in static c a c Two: phone S-20 Ten Mixer Dual Stereo Console for for quieting and sensitivity for sharper channel adjust! SPARKOMATIC CORP. LPB Inc. 520 Highway, Frazer, PA 19355 (215) 644-1123 LPB' Lincoln Noise Suppression II

Circle 253 on Reader Service Card Single-ended noise suppressor, I if 240 "Dynex," is a program cont filter/expander which offers an c tive means of suppressing a ( r amount of residual background n, it audio reproduction systems, T1, a QUICK-SET IS chains, and "phone patches." Fe selective suppression of rumble ; or wideband noise, and restorat FEARLESS program dynamics by linear broa 0 expansion. Variable thresholl justments and visual indication pander operation are provided 0 ...Houston-Fearless, that is. VONICS, INC. the pro- Introducing, from Quick-Set, Flexible Audio Mixer fessional champs in television and microwave support equipment. We've Audio mixer is comparatively acquired the Houston Fearless prod- 29" x 15" x 5.5", 40 Ibs, t uct line of studio pedestals, heads, tri- corporates highly flexible c pods and dollies. These popular systems for 16, 20, or 24 chi heavy duty units accommodate a Model 2022 claims intermod' 6-7C complete range of studio/remote re- distortion of .008%, with dB bel. quirements. 4:1, and output noise 80 dBm. Some features are: three Stability, smooth action and quality II equalizer on each channel; pan p are the key ingredients in every Quick- mix for headphones, foldhack o in Set product. This is why we can offer monitor; LED peak overload digit a lifetime guarantee against defects in on each input; three-color with p: materials and workmanship. We back VU meters; echo return O solo and mute. $5600, 16 this with worldwide distribution and QUICK-SET $6500, 20 inputs; $7660, 24 service to give you the professional 2005AD, INC. support you deserve. NCORPOR A T E D instrument positioning equipment For more information Send for our complete catalog. 3650 Woodhead Drive, Northbrook, Illinois 60062 3121498-0700 Telex: 72-4362 circle bold face number on reader service card.

Circle 254 on Reader Service Card A' 97 170 SEPTEMBER www.americanradiohistory.com k,11 The only thing that Sounds as Good as what we Sell...Is what we Sell 'em for. I I Call CCA about our 'tea AM & FM TRANSMITTERS

nn opies of these literature offer- and let's talk things over.

, r circle number for appropriate We're very reasonable. y r on Reader Service Card. C)1976 CCA Electronics Corp.

tils of the RCA PAC-1 Program itmation Controller system are CCA Electronics Corporation 0 in a 4-page catalog, AU.4150. 716 JERSEY AVENUE. GLOUCESTER CITY. NEW JERSEY 08030 charts and specifications are pro- PHONE (609) 456-1716 TELEX 84-5200 RCA. 350 kield Service Brochure provides Circle 255 on Reader Service Card ?nation on delivery, assembly, in- ,tion, alignment, and testing of When accuracy Counts...Count on Behr .cnvave and earth station an- t systems. The brochure is fully sated with more than 40 photo- for AM/FM/TV M01111T0115 .1111111. MAW Ts of specialized installation and

: equipment and actual installed :as. Andrew Corp. 351 9 "9 9 "9 ' nitneters, Coaxial Loads, RF Wattmeters and At- rrination .901. 1MA tat 111113 Pat ..,11 N5171. /.111511 ) utors covering from 1/2 to 2300 IMP LIP fill EP NIP 111 ::and from milliwatts to 250 kilo - BELAR are described in a 4-page short t n catalog. Bird Electronic 352 BELAR CALL ARNO MEYER (215) 687-5550 .ure describes properties and ap- ELECTRONICS LABORATORY, INC. _ons of fire extinguishant for LANCASTER AVENUE AT DORSET. DEVON. PA 19333 BOX 826 215) 687 -5550 A, B, and C, fires; uses BCF Circle 256 on Reader Service Card 1211 agent. ICI United States 353 csiderations on the Application -';C/ASC Amplifiers in CATV fms" is a new technical paper ;views the behavior of automatic Change ncontrol /automatic slope control ofiers and examines system per- Sound to il once and reliability. Jerrold Elec- n n s Corp. 354 2-page catalog describes the Barco Silence 01f Studio Color Picture Moni- --o .sComplete electrical and mechani- pecifications are presented plus with a tJation information. Rhode & arz. 355

Mure provides test results for two TABERASER high speed, continuous belt This rugged, heavy duty bulk tape eraser wipes sound from 'Ts for audio and video tape. The all magnetic tapes, cartridges, cassettes and magnetic film cond, "hands-off" operation of stock; handling up to 2". rasers is also described. Garner .:tries. 356 It erases with minimum residual noise because the field automatically diminishes at the end of each 30-second cycle. 40-page brochure describes the A thermal control and blower keeps the unit below 71° C. opment of satellite communi- ns and the Thomson tubes de- Available for 60Hz or 50Hz operation. ed for use in earth stations; em- in your area -Call or write: izes the travelling wave tube for For the distributor application and includes data is on the 20 to 2000 W tubes TABER Manufacturing & Engineering Company able in the 'C' and 'Ku' space (415) 635-3831 munication bands. Thomson-CSF 2081 Edison Ave. San Leandro, Ca. 94577 tron Tubes. 357 continued on page 172 Circle 257 on Reader Service Card

"EMBER, 1976-BM/E 171

www.americanradiohistory.com STE -100 NEW LIT STEREO PHASE ENHANCER Video Short Course pros ide formation on care and handlit videotape as well as explanatii how videotape is made. Package sists of two programs and ac Are you looking for a cleaner mono sound? panying 12-page booklet. !si The STE-100 rex. could be the answer. It corrects for mono-sum error to provide your listeners with a clean, crisp sound, glying Broadcast News Hand boob you a "sound" edge over your competitors. Donald W. Miles of the Unisers Florida covers news broadcasting EDCO PRODUCTS, INC. 680 BIZZELL DRIVE LEXINGTON, KENTUCKY 40504 the introduction of newsroom prat (606)259 0434 and principles to instructions for Circle 258 on Reader Service Card erage of news stories. This tea been written for use by colleges, j colleges, broadcasting schools, radio and TV stations. Subjects Lts YOUR LOUDNESS as ethics, stringer assignments, WITHOUT conferences, civil disorders, fai LOSS OF SIGNAL QUALITY to minorities, police and county Adding on-line reverberation after all limiting is relationships with hospitals, sear the proven way to increase effective modulation rescues, disasters, government without signal pumping, but it takes the finest quality politics, the style of the newscas chamber to avoid overmodulation problems. station management are covered. 392-page text, No. 21183, MASTER- ROOMTM $9.95. Howard W. Sams & Co., AUDIO PROCESSING REVERBERATION CHAMBERS W. 62nd St., Indianapolis, IN. 46 FOR AM-FM-TV Sound System Engineering discs :1 audio systems as a whole. tit MICMIX Audio 9990 Monroe- Suite 222 reviews the most significant pa I =..0 Products, Inc. 214/352-3811 Dallas, Texas 75220 and events that brought audio sys Circle 259 on Reader Service Card to their present high level of techi gy. Supplementing text material complete guide to sound system neering filled with drawings, ph charts, graphs, and tables. The be 296 pages, 81/2 x 11, hardbounc lists for $19.95. Howard W. Sat Supervisor Co., 4300 W. 62nd St., Indian. Radio Field Service Engineering IN 46206. Guide We're a leader in TV and radio broadcast equipment and as a Electronic Music Circuit division of a major Fortune 500 Corporation, soundly financed and explains sound generation geared for growth. This growth has created a challenging career waveform synthesis and shaping I opportunity for an individual with a minimum of 5 years broadcast includes many individual circuit r experience and at least 2 years experience in a line management position. You should possess managerial abilities in order to give generating and tailoring wavefon 1 guidance and direction to a staff of radio field service engineers. individual specifications, schen , for such control elements as vol You'll be responsible for the administration and continued im- controlled amplifiers and °salt i provement of the company's radio field service organization, and c - supervision of radio field service activities, involving installation, details on precision waveform maintenance and repair of our broad radio broadcast equipment cation, keyboard information, anc 7 product line. You'll also provide product information to customers struction and programming : as well as respond to customer equipment problems. formation. Book is $9.95 hardbe.

We offer a salary commensurate with experience and the challeng- $6.95 paperback. Tab Books. ing demands inherent in this opportunity. We will also provide you Ridge Summit, PA 17214. with an excellent benefits package. Send resume with salary history and requirement in confidence to: Radio Power describes radio histi L.B. Carlstone, Professional Employment Supervisor aganda, its techniques and development. The volume inc analyses of four models of interna. HARRIS Harris Corporation, Broadcast Products Division broadcasting: the wartime ideolt COMMUNICATIONS AND INFORMATION HANDLING Quincy, Illinois 62301 extremism of the Nazis as perfect An F:qual Opportunitn Employer M/F Dr. Goebbels; the Communist ft service; the Voice of America Radio Free Europe; and the Copies are $12.50 and are ava from Temple University Press, Ti University, Philadelphia, PA 19

172 SEPTEMBER, 1976- www.americanradiohistory.com AIRING OR DUBBING Business Briefs cont. from pg 25 LICAL-SCAN TAPES? fRY THIS PAIR OF PRO'S lumbia productions scheduled over the InFIP next 12 to 18 months. HAS A COMPLETE LINE / CAPABILITY RCA American Communications TO SOLVE YOUR Inc. announced the signing of a multi- MODULAR CONSOLE year contract with Hughes Television AND COMPONENT NEEDS Network for at least 1,800 hours yearly of domestic satellite video transmission M IC ,TAPE *VCA'S . . . . Continental Electronics Mfg. & PHONO Co., of Dallas, TX, has been awarded a PREAMPS contract valued at more than $2 million by Radio Free Europe/Radio Liberty LINE, for the supply of ten 100,000 watt MIXING & 4DAPT 1/2" & 3/4" VTRs International Shortwave Broadcast BOOSTER AMPS TO PROFESSIONAL Transmitters. 15 WATT POWER AMP ;TUDIO SOUND LEVELS, Goldmark Communications AUDIO DISTRIBUTION AMP IPEDANCES, CONNECTORS Corp., disclosed the consolidation of Q'. PARAMETRIC the AI-12 Input Interface . its operation's Transcan Division, in a ects 60052 balanced lines to new 12,000 square-foot facility in EQUALIZER VTR input; and the AO -12 Stamford, CT. Data Communi- GRAPHIC & SHELVING ut Interface . . . converts low- cations Corp., announced the opening EQUALIZERS , VTR output to high-level 60052 of a new division, Dataform, created to (cast-type line. The PROs pro- _., COMPRESSOR- the right connectors in each meet business form needs for DCC's LIMITERS of the circuit; facilitate tape BIAS customers and other users. * CONDUCTIVE PLASTIC sating; permit simultaneous A $618,000 contract has been STUDIO FADERS to multiple loads; prevent awarded to Cohu, Inc., Electronics El'' ing of active audio circuits. Division, by the Sacramento Army PRECISION OSCILLATOR

Depot for the manufacture of four fully .- - lit Ultra Audio Products equipped Mobile Television Units CONSOLE CONTROL MODULES FOR MULTI-TRACK RECORDING NN BOX 921 BEVERLY HILLS. CALIF 90213 . . . . C-Cor Electronics, Inc., has ed (213) 276-2726 been awarded a Key Case contract for BROADCAST I the construction of cable television fa- CONSOLE ..* : -t . . trcle 261 on Reader Service Card cilities in Frankfurt, Indiana. INPUT -- - ' Corning Glass Works announced MODULES its decision to withdraw from the Standard NI stand-alone television image enhancer Console FREE business. Corning will, however, con- Frames FROM tinue to supply delay lines and custom Available ::1 subsystems to video broadcast equip- * NEW ment manufacturers . . . . Dictaphone Corp.'s Scully/Metrotech Division line of has PLUS ... A complete been renamed Audio/Electronics AUDIO OP-AMPS TRANSFORMERS Division. The Scully trademark will be POWER SUPPLIES ACCESSORIES retained. AND 80 WATT MONITOR AMPLIFIERS Labs Teledata Systems, Goleta, Cal., manufacturer of remote control and MP.. A single source to solve all

telemetry equipment for broadcasting your Modular component needs .. . and industrial control applications has merged with Time and Frequency

Technology, Inc. . . . Frank M. Drendel of Hutton-Drendel As- " ...... ,... sociates announced "an agreement in principle" with Superior Continental Corporation for the purchase of its coaxial cable manufacturing division, =:.. Comm/Scope. Western Union announced an .... or to meet your most exacting console requirements. agreement with Robert Wold Com- MOST COMPLETE (Most components available from stock) -MIRY'S pany, Inc., of L.A., for use of a mini- -FINICAL INFORMATION ON mum 1,800 hours per year of video FOR COMPLETE CATALOG CALL OR ROTARY SWITCHES transmission services on its Westar WRITE RICK BELMONT ... TODAY Manufactures of Consoles PROGRAMMING SWITCHES domestic communications satellite Console/System Components THUMBWHEEL SWITCHES system. The estimated value of the ini- ATTENUATORS tial six year arrangement is $3.8 mil- raili, MODULAR lion, and another seven-year contract Call or Write For Free Catalog .A.Li(Dic) rs=lcpcx_icT-s for use of the satellite system, signed by UNIT OF NODULAR DEVICES. INC ECH LABORATORIES, INC the Corporation for Public Broad- 1385 Lakeland Ave AirporI International Plaza Bohemia. New York 11716 516-567-962r. Bergen & Edsall Blvds , Palisades Park. N J 07650 Tel 1201) 944-2221 casting, and Western Union will amount to $2.4 million annually. A ircle 262 on Reader Service Card Circle 263 on Reader Service Cara EMBER, 1976-BM/E 173

www.americanradiohistory.com SIART, SPLIT, STOP, REX(

WITH ONE HAND AND Q ELECTRONIC TIMING ACCu People In The News

RCA President, A.L. Conrad, has LOOK! been elected to an additional position as Chairman of the Board . . . . Charles FOR SONY VO-3800 VIDEO CASSETTE RECORDER A. Steinberg has been named Ampex FOR MICROWAVE TRANSMITTERS" vice president of audio-video systems FOR REMOTE BROADCASTS and data products. MODEL MA 3CT The Board of Directors of Andersen MIXER-AMPLIFIER Laboratories announced the election of David E. Acker to the position of vice president . . . . Juan C. Chiabrando has been appointed vice president, elect operations, by CCA Electronics Corp. digital stopvki . . . . Robert N. Hurst has been ap- Your timing pointed to the staff of the RCA Broad- couldn't be cast Systems Technical Training De- Model ET100 $7 partment. AC Charger, Includes neck strap, leather rue P Arch Deal is the new News Director Standard split action- freezes dii 3 MIKES OR 2 MIKES/HI LVL SOURCE for WLCY-AM-FM-TV . . . . Dr. time while clock continues counting AGC W/DEF EAT SWITCH David M. Guerra has assumed the for programming and screening roe HEADPHONE AMPLIFIER Brilliant LED readout can chairmanship of the Department of be seen In 2" X 4" X 5" in the dark and eliminates common Radio-TV-Film at the University of watch guesswork. Solid-state TONE OSCILLATOR ac Arkansas. reads to 1/10 of a second. Abe 50 DB and LINE LVL OUT noiseless. Palm size. No moving, Donald C. Jensen is the new Qual- Unbreakable case. 1 year warr NOW IS USE BY MAJOR NETWORK ity Assurance manager for Dielec tric Rechargeable Nicad batteries. NEWS CREWS'' Laboratories, Inc Dyma Engi- Also Available: Model ET105 $49.95 WI pie Start/Stop Operation, Penlight neering has named Elven Harvey, Jr., Dealer Inquiries Inviteo Traniiii-O-Sosuid vice president. 851 N. Eustis Drive Belva B. Brissett, former assistant F&B CECO INDIANAPOLIS, INDIANA 46229 to the minority counsel of the Senate II SALES - SOS DIVISION Select Committee to Study Govern- AREA CODE 317 897.1549 315 West 43 St., New York, N.Y. 10036 '2121581 ment Intelligence, has joined the Gov- 7051 Santa Monica Blvd. Hollywood, Calif. 90038121: ernment Relations Department of the Circle 266 on Reader Service Carl Circle 264 on Reader Service Card NAB NAB also announced the appointment of new members to the NOTHING TO Radio and TV Code Board. They are Erica Farber, Edward 0. Fritts, and DUMMY LOAD: BURN CUT! Walter Rubens. 100 to 1.5 Mill ion Watts Average NCTA has named James T. Mc- Corkle, associate director of Govern- FM/LOW TV ment Relations and appointed Marvin LOADS TO 75K Dilbeck, chairman of the Occupational Safety and Health Act Committee. AM/VHF DRY New members of the NCTA EEO committee will be Clay Blanco, Jr., LOADS TO 4001' James W. Cantor, Samuel Cooper, Beverly Land, Spencer Kaitz, COAXIAL WATI. Mitchell Kleinhandler, Don Shuler, LOADS Donald E. Anderson, Daniel Aaron, Charlotte Schiff Jones, Audrey Scul- DIRECTIONAL SOLID STATE thorpe, and Dr. William A. Douglas. TUBES The National Broadcasters Club has COUPLERS 1E'IPATI RECTIFIER elected new officers; they are: Leonard Replace vacuum and gas rectifiers Tuft, president; first vice with filamentless, dependable EDI Roy Easley, RF POWER SOLID-TUBE ® silicon solid-state president and treasurer; Wally Bris- rectifiers for all these advantages: coe, second vice president, and Patti METERS TERMINATIP No or transformer. Greater filament Grace, secretary . . . Ted Hughett has reliability. Constant output. Long life. No warm up. No heat. Proved been elected to head the Cali fornia RF ATTENUATC in use. Meets or exceeds tube Cable Television Association. ratings. Lower cost. Full range of Jeff Tellis was re-elected president RF DRY BALLO" replacements. of the Intercollegiate Broadcasting Write for a complete list of equiva- System, Inc lent tube types, general informa- Paul Montessoro RF CALORIMETli tion, and costs. Application advice has been promoted to vice president of also available. operations for Guam Cable TV System AM SEND TODAY . . . . Thomas Wendt was recently elected president of the Illinois-Indiana eelectronic Cable TV Association. Bruce D. Buck has been appointed 21 GRAY OAKS AVE.. YONKERS. N Y 10710 vice president International Sales for 116 CHESTNUT ST., RED BANK, N. (914) 965 -4400. TWX 710 560-0021 TELEPHONE: 201-741-0404 CCA Electronics . . . . Bob Tria has Circle 265 on Reeder Service Card Circle 267 on Reader Service Car 174 SEPTEMBER, 1976 www.americanradiohistory.com i; promoted to Sales Manager for pointed director of marketing for Con- ational Tapetronics Corp. and solidated Video Systems, Inc. Wasserman has joined ITC as Modular Devices, Inc. has named -tising and Market Research Leslie F. Cooley, chief engineer, Modular Audio Products . . . . John Put Don Webster has been appointed Kirch has been appointed Sales man-

d sales manager for GTE Lenkurt ager for LogiMetrics, Inc...... Harris Corp.'s Broadcast Joseph Gibbs has been appointed Na- performance its Division has announced the tional Industrial sales manager for co- ,1 atment of George W. Hamilton axial cable communications products first with lager of International Sales Ad- of Magnavox CATV . . . . Dictaphone ration. Corp.'s Audio/Electronics Division rry N. Larkin has been named has named Stanley D. Becker as the RANK , a ling director for LPB, Inc new manager of engineering. Felix D. Bonvouloir was ap- Frederick L. Bones has been named )ii d midwest regional manager, sales manager for television and motion TAYLOR-HOBSO\ icast Sales, for International picture lenses by Rank Precision Indus- Corp Systa-Matics, Inc., tries . . . . John G. Campbell has med T.V. (Ted) Anderson to joined Convergence Corp. as vice pres- LE \SEA to its new western regional mar- ident, marketing . . . . manager. Robert L. Nelson, general manager Your television system will by Z. Sawyer has been named of KNX/FM, L.A., has been named only be as good as the engineer of KCMO-AM and vice president, CBS Radio . . . . Pete lens it looks through. Put -FM, Kansas City . . . . Chief Pappas has been named president of performance first. Ask er James D. Parker has been Big Valley Broadcasting; Harry yourself, what are the :ed to vice president at WXIX- Pappas has been appointed president most important details: - incinnati . . . . KSAT-TV an- of Pappas Television Inc., and Mike image clarity? light the appointment of David Pappas has been made president of transmission? angles of at its chief of engineering. KMUV-TV, Sacramento . . . . Casey view? optical and -iur N. Terwilliger has been ap- Santos has been named general man- mechanical design? I president of International ager of KGEN and KBOS Radio, serviceability? Let Taylor- vave Corp., Cos Cob, Ct . . . . Tulare, CA. Hobson lenses answer . Burke Broadcast Consultants Pete Sieler joined KEVN-TV/ your requirements in med Lester Bollinger as man- KIVV-TV, Rapid City, SD, as station terms of performance. . . . . manager . . . . roadcast field sales Nick Albert C. Lucero, When you have your cg has been named engineering general manager of WROC-TV, camera selected, contact tanager for IGM/NTI. Rochester, and Allen S. Feuer, general us for expert advice. Let ert A. Hart, Jr., has been ap- manager of WEYI-TV, Flint have been us help equate your ,1 to dual posts as vice presidents president, named vice of their respec- needs-to your budget. w-Hill Broadcasting Company tive Rust Craft Broadcasting Company ,eneral manager of station Stations W. Austin Cross has

I I P. I-TV, Denver . . . . Gary K. been named operations manager of fftipt nas been named vice president, Keokuk Cablevisions. Total 50itlaons, at Convergence Corp . . . . Gordon W. Pearlman will serve as ip J. Davis has been appointed the Western Regional sales manager for Performance ,r, Corporate Marketing Admin- Kleigl Bros . . . . John F. Schneider !ft n at International Video Corp has been named Western District sales 3TE Sylvania has named Joseph manager for McMartin Industries Service wlarinis, director . . . . Advent Corp. has promoted of eneineering Whether for Entertainment Products Francis L. Reed to director of market- service Group contracts or for expert Jim A. Summers has been ing. ap- repair and refurbishing by factory trained personnel, call for fast, dependable service: East Coast (914) 358-4450 Central (312) 297-7720 West Coast (714) 642-0746 R MICROPHONES

tntact us for our list of -:ommended studio mikes. ost models in stock . X.11° at reasonable prices. f(f.\ RANK PRECISION Sennheiser Shure Sony eyer Electro-Voice Neumann INDUSTRIES,INC. 260 North Route 303 West Nyack, N.Y. 10994 (914) 358-4450 2 Hamilton Avenue, Stamford,CT 06902 Telephone: 203 359 2312 RL-1 76

Circle 268 on Reader Service Card Circle 269 on Reader Service Card EMBER, 1976-BM/E 175

www.americanradiohistory.com McCurdy Radio Ind. Inc. 1976 Is The ADVERTISER'S INDEX MCI Year Of McMartin industries Inc. Micmix Audio Products, Inc. ENG And Electronic Microtime Micro-Trak Corp. Alexander Manufacturing Co. 142 Microwave Associates, Inc. Field Production . . . Allied Broadcast Equip 150 Modular Audio Products, Inc. American Data Corp. 40 Monroe Electronics, Inc. Amperex Electronic Corp. 11, 29 Moseley Associates, Inc. This Is The Only Book Ampex Corp. 77 Multronics, Inc. Ampro Corp 16 Can Amtron Corp. 168 That Prepare Angenieux Corp. of America 49 National Electrolab Ltd Aristocrat 160 NEC America, Inc. You Audio Designs and Mfg., Inc. 85 Nurad, Inc. For It Audiotechniques Inc. 175 Your station management and your to to operators need know how get the Barbizon Electrical Co. 167 Orban/Broadcast most out of the new ENG/EFP equipment Belar Electronics Lab., Inc. 171 Orban/Parasound and how to choose the equipment that can Beyer Dynamic 107 get the job done. Boston Insulated Wire & Cable Corp. 159 Pacific Recorder & Engineering Ten skillfully edited chapters provide Broadcast Cartridge Service 168 Corp. the fundamental information on the new Broadcast Electronics, Inc. 162 Philadelphia Resins Corp. cameras, recorders, editors, time base Broadcast Specialties of the Philips Audio/Video Systems Northwest links, program 133 Corp. correctors, microwave Buhl Optical 167 Potomac Instruments audio and intercom systems, and present it all in language for the technical and non-technical reader alike. Camera Mart 89 QRK Electronics Canon USA Inc 43 Quantum Audio Labs Fill out the coupon below to get your Capitol Magnetic Products 103 Quick Set Inc. copy of the ENG/FIELD PRODUCTION CCA Electronics Corp 171 HANDBOOK. Single copies are $9.95 Central Dynamics Ltd. 15 Cetec Audio 102 Ramko Research each. Cetec Broadcast Group 129 Chyron Rank Precision Ind. Inc. Telesystems 31 Rapid Cinema 99 Q Products Corp. RCA BM/E Magazine CMX Systems 111, 115 Broadcast Systems S RCA Distributor & Special Collins Radio Group Cover 4 Div 295 Madison Avenue Commercial Electronics Inc. 117 Products New York, NY 10017 Recortec, Inc 126 Communications Technology Revox Corp. Inc. 114 Please send ( ) copies of the Robins Broadcast & Sound ENG/Field Production Handbook at Computer Image Corp 47 Conrac Ross Broadcast Products Ltd 67-72 RTS Systems $9.95 per copy. Consolidated Video Systems 105 Continental Electronics Please send me information Mfg. Co. 95 on your bulk order discount rates. Convergence Corp. 20, 21 SC Electronics Name Cosmicar Optical Co. 138 Shure Brothers Inc. SMPTE Sony Corp. of America 1 Address Datatek Corp. 8 Sound Systems Inc. Datatron Inc. 32, 51 Sound Technology Datavision/3M 59 Spectra Sonics City State 7i p Delta Electronics 112, 113 Stanton Magnetics, Inc. Digital Video Systems 149 Willi Studer America Inc. Ditch Witch Trenchers 25 Total ($9.95 x copies =) Duca Richardson 137 Dynasciences Video Products 18 Taber Mfg. & Engr. Tandberg of America, Inc. *Postage & Handling $1.50 Tech Laboratories, Inc. Technics by Panasonic Tektronix, Inc. Total Enclosed Eastman Kodak Cb 19 Edco Products 172 TeleMation Inc. Electro Impulse, Inc 174 Telemet Electronic Devices, Inc 174 Telesource Comm. Systems *Foreign orders: add addl. $1 for Television Equipment Assoc. postage and handling. English Electric Valve Co. 13 ESE 119, 166 Television Products Co. Telex Communications, Inc...... 4 Tentel ...... 4 F&B Ceco 174 Thomson CSF Labs., Inc...... SALES OFFICES Farinon Electric 125 Time & Frequency Technology, Fidelipac 104, 108 Inc...... Inc. Broadband Information Services, Inc. Frezzolini Electronics 10 Transist-O-Sound 295 Madison Ave. New York, New York 10017 Grass Valley Group 5 Ultra Audio Products ...... EASTERN & MIDWESTERN STATES UMC Electronics Co. 295 Madison Avenue Unimedia ...... New York, New York 10017 Harris Corp. 23, 33 UREI ...... 212-685-5320 Hughey & Phillips, Inc. 161 Kenneth F. Luker, Jr. WESTERN STATES Vacuum Tube Industries, Inc 1212 Hearst Building IGM, Div. NTI 10 Vega Electronics San Francisco, California 94103 Ikegami Electronics Ind. Inc. 26, 27 Video Aids Corp. of Colorado 415-495-0990 Inovonics, Inc. 18 Videomax Corp. William J. Healey International Tapetronics Videotek Corp. 14, 140 Visual Information Institute P.O. Box 49206 Inc Los Angeles, California 90049 Vital Industries 213-826-4543 JVC Industries, Inc. 7 Art Mandell JAPAN Ward-Beck Systems Ltd Nippon Keisoku Inc. Laird Telemedia Inc. 38 West Lake Audio P.O. Box 410 LPB Inc. 170 Wilkinson Electronics, Inc. .. Central Tokyo, Japan Tokyo (03) 667-7681 Yoshi Yamamoto Marconi Instruments 135 Marti Electronics, Inc. 132 Yardney Electric Corp

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McCURDY RADIO INDUSTRIES INCORPORATED 1051 CLINTON STREET. BUFFALO, N.Y. 14206 (716) 854 -6700, TWX 610-492-3219 McCURDY RADIO INDUSTRIES LIMITED 108 CARNFORTH ROAD, TORONTO, ONTARIO M4A 2L4 (416) 751 -6262. TELEX: 06-963533

Circle 270 on Reader Service Card www.americanradiohistory.com Just add four wall and you're on the a Presenting Collins' full line of broadcast equip

Whether you have 10 watts or Every item we make is the re- ready to demonstrate this 100,000 watts behind your signal, sult of an uncompromising dedi- action, too. Collins has everything you need. cation to technical superiority. For those four walls, see From towers and transmission line The result is a difference that some general contractor. to transmitters and test gear to customers say they can "feel". For everything else, see turntables and tone arms . . . and They call this difference "the Collins, the radio specialists. all the other items in between. Collins presence". Your listeners tact your local Collins sales Including the modular, flexible will notice the difference, too. or Broadcast Marketing, M.S AutoPro program automation line. And Collins believes in after- 406-240, Collins Radio Grou And featuring the Generation 4® sale support to keep you on the air. Rockwell International, Dalt series of transmitters - with the Our Product Support Staff is at Texas 75207. Phone 214/690-5 exciter that has set new standards your service 24 hours a day, 365 or -5424. for FM broadcasting. Plus AM days a year. And our Service Parts transmitters that our customers say Department is just a phone call sound like FM . . . and consoles away, even on weekends and IlkRockwell with plug-in flexibility to meet your holidays at 214/690-5000. Support International changing format requirements. is not just lip service at Collins, But either. Our transmitters are backed there's much more to ..where science gets down to business Collins than just breadth of line. up with a full two-year warranty, twice as long as the other majors. Circle 163 on Reader Ser Our quality line of broadcast products and prompt service add up to still another benefit to Collins customers - longer operating life and lower cost of ownership. We're