Most Complete Nnoram, and Authoritative Guide '=A7 Rrr Ca4c::::CRAFT to Broadcasting Equipment

SEPTEMBER 1975

11111 iNfE BROADCAST MANAGEMENT /C LTV =oft.* ADD r! ll CA

The Source '75:

Nfir Most Complete NNoram, And Authoritative Guide '=A7 rrr ca4C::::CRAFT To Broadcasting Equipment. 0080ST 0.111 e4 a SOT 117.7, .....,,D 1 0400 DATA CONNIDOCADODs Cm,. ( It's Verified.) Am!? 3000 I.4 ..,- -,,.. NOW SIEAlssps _ . 11,11 ' 0t ' .7g ., 0 I 2...... : ve ..D4'. .d .

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.A. . ir .1.004401/10 - 6.000AND, i . a Settlitit I?'004,."'"OW0. 7 'OS WIsp.ZWID4W1,ab :'.''''O'S C401,%I. C".NIPN, 004* .....0%.". ,L.404:40iNtP001... 44.4.0O..44 / C"IftPritr The whole point of ENG is the point of the Sony U-matic format.

Fast, easy, economical news gathering. TriniconR color camera, and camera control unit. That's the whole point of ENG. Operating savings? Huge. Because, unlike film, Fast, easy, economical operation. videotape is erasable, reusable, instantly replayable. And That's the whole point of Sony's 3/4" U-matic(R) there is no orocessing. videocassette equipment. Whicl- means no processing delays. No chemicals to Cassettes and ENG were made for one another. dispose of. No processing costs of any kind. They're a perfect match. No wcnder Sony ENG equipment is already But only Sony can give your ENG all the speed making news at ABC, CBS, NBC, and over 200 local and savings of both cassette recording and stations ac-oss the nation. cassette editing. For the whole exciting story, write Our all -cassette system consists of two editing Sony Corperatioi of America, Video Information Center units, an editing controller, portable recorder, Dept. 224-C, BoK 1594, Trenton, N. J. 08607. SONY. The complete ENG system.

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Circle 101 on Reader Service Card for a demonstration Circle 102 on Reader Service Card for literature o switcher onlgstandardFrom 120dog COLS delivery? 0 00 only et, --er-re-re--crr-rerrr-r-rr-trrceri0# $311400 441 ?* (7-r-r-rerrre-rri-rt-r-ert7:2O 4, ,- i 10-4:4;T71'441-471;1 . rieri that's ',r-rcri7er?7--;(-7.Pi 4- And right! 1i in -*:1-14-i-r-- addition... loadedwith

"custom"leaturesandCDL Quality Youget it's these the "Custom" most II20 features:wanted inputs II 8 Following VSP-1260S! Busses any options When timeon a can you including2 be need Mix/Effects, RGB plug-in added Production a "Big" Program basis: only Video Utility ANDPreview/Key,2 selectorChroma a fewSwitcher of busses El Keyerand make thereare forprewireda Utility input them.manufacturers applications. variety El Bus You've who VK-2140 Control (6accustomedto a been Additional Panels months "Big" Keyer Encoded Key "Big" and intointegratedChroma Border price. longer),delivery 4x1switcher and Module andat a input and timed That's To howit has Dual selector.including see the 2x1 effects Here's been to Chroma Series of howit is RGBdelegate Key our SwitchersinVSP-1230 VK-2140orSwitcher coljr, We've NOW! M/EChroma Youcan request taken 1 amplifier.Keyerto "Cn-with-the-Show"also "Custom" yourmost Key either "Live". see tt-e Brochure them options wanted usedBorder VSP-1200 effects and operating STANDARD. made bus.with Module: in Switchers either can be acrossthemost are Standardizing majcr 32Non Mix/Effects country. cities andproductionhavefeaturesand delivery Patterns-Repeating than4 reduced Effects costs, Soft months.schedulesto Edge The less Key the Soft otherVSP-1260Salso II Edge hasall Wipes Centraloriginal InSpotlight& and SeriesDynamics'featuresof Non Mask Vignettes CENTRAL II -Add Keys Canada Switchers.VSP-1200 Fade Inserton 147 DYNAMICS *U.S. to each Hyrrus LTD Price Black M/E Blvd.. from 514-697-0811 Montreal, nonsynchronous U.S.A. Oue I-9R Automatic sources 230 -1G1 Color Livngston Black Street. Circle system 201-767-1300 102on Northvale,KJ Reader 07647 Service Card BNIEBROADCAST MANAGEMENT ENGINEERING

SEPTEMBER 1975/VOLUME 11/NUMBER 9

6 Broadcast Industry News NAB recommends changes to community ascertainment; Multi -point distribution use is growing 20 Interpreting the FCC Rules & Regulations AM Restrictions Eased 26 How to Backtime with Your Pocket Calculator

. the greatest aid since the stop watch" 28 Picking the Right ENG System for your Market Lower cost systems might be right for you

Products and equipment of 32 How to March Turntables to the Format- the industry . .. who makes it and the Pocketbook Three classes of turntables, related to use, emerge (fresh, updated, verified) . . where to buy it . . . it's all in The Source 1975, beginning on page 38 THE SOURCE 1975

38 Instant Source Locator Who makes it: 9 categories & 180 subcategories of broadcast & cable equipment, by manufacturer

BROADBAND 49 Broadcast Equipment Manufacturers INFORMATION SERVICES, INC. Names, addresses, telephone numbers, product 274 Madison Ave. descriptions-all verified New York, N.Y. 10016 212-685-5320 88 Independent Broadcast Reps/Distributors Editor All major reps/distributors organized by state James A. Lippke Associate Editor Robin Lanier Contributing Editor 124 The Great Idea Contest Robert Wollins More practical hints from our readers Editorial Assistant Karen Goudket 129 Broadcast Equipment New and significant products for broadcasters Art Director Gus Sauter 130 New Literature Manager Useful reading materials Publication Services Djuna Zellmer Circulation Manager Barbara B. Connolly BM/E, BROADCAST MANAGEMENT/ENGINEERING. is published monthly by Broadband Information FCC Counsel Services. Inc. All notices pertaining ,o undeliverable mail or subscriptions should be addressed to 274 Pittman Lovett Ford Madison Ave.. New York, N.Y. 10016. BM/E is circulated without charge to those responsible for station 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; EN 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 Publisher one year. $35.00 two years. Foreign Air Mail: additional $24.00. Copyright1975 by Broadband Information Services. Charles C. Lenz Jr. Inc.. New York City. Controlled circulation postage paid at East Stroudsburg. PA.

4 APC-2000 AUTOMATION SYSTEMS

10.43.08 AM >MANUAL TAKE VIO >ttftftfttft TIME SRCEIDEOTR SCAUDTR PROGRAM AIR -MAN- F1A FIR VARIETY PROMO NEXT 0 10 F2S IWS C2 FO TOPICAL MSG

02 45 SPR DM D MORNING NEWS -MAN- REM FS F PARADE EDIT MODE:- -CLK- NET THE BIG SHOW 9 58 30 PM 0 10 VT1 RC COLA eDELETEN 0 20 FIR DS CHEVROLET 0 50 F3B FS TOOTH PASTE 0 10 F4B WS C3 F EXTENDED ID -BAN- NET FOOTBALL 2 1351 <0.<<<<<<<<<<<<<<<<<<<<(CPM

How do I make last-minute changes, additions, or deletions?

Can I intermix elapsed time, real time, manual, and externally cued events?

Can the on -air switching automation equipment be interfaced to a time-shared computer system?

How many days' programming will the system store?

Can the system be modified easily?

Can the system be expanded at a later date?

For answers to these or any other questions about television automation, calf!or write The Grass Valley Group, Inc.

THE GRASS VALLEY GROUP, INC.AA A TEKTRONIX COMPANY

Station Plaza East 4419 Van Nuys Blvd, Ste 307 1644 Tullie Cir, NE P.O. Box 482 810 111/ Bristol Street GREAT NECK, NY 11021 SHERMAN OAKS, CA 91403 ATLANTA, GA 30329 MABANK, TX 75147 ELKHtART, IN 465.4 (516) 487-1311 (213) 990-6172 (404) 634-0521 (214) 887-1181 (219) 264-0931

SEPTEMBER, 1975-BM/E 5 BROADCAST INDUSTRY

NAB & RAB to Hold Joint the overall performance of theli- Regional Conventions National Radio Broadcasters censee." Conference,Atlanta, Sept. 17-20. The NAB feelsthat a combined The National Association of Broad- Will Be Previewed in BM/E's Atlanta narrative-problem/program list would casters and the Radio Advertising Survival Guide Mailed to supply enough information for review Bureau have announced a series of re- Pre -Registrants. by the FCC and the public and that it gional radio conferences jointly spon- would shift attention from the technical sored by the two organizations to be detail of ascertainment tothe per- held this fall. The regional conventions NAB Faults FCC On formance of the licensee. will replace the NAB Fall Conferences and the RAB Management Meetings. Ascertainment Policies Organizers plan to cover the entire The National Association of Broad- MDS To Give Boost To spectrum of interest to broadcasters in- casters has urged the Federal Commu- cluding government relations,sales, nications Commission to abandon its Pay -TV In Many Cities generalmanagement,engineering, proposed community guidelinesin By using the Multipoint Distribution legal, and FCC problems. favor of a simple narrative statement Service for some part of the haul to the The Regional Radio Conventions reviewing steps taken to discern local subscriber,pay -TV operatorsare will be held on the following dates, problems, plus a listing of those prob- about to expand their services rapidly which are the same as for the previously lems and programs to meet them. in a number of cities, with plans for announced NAB Fall Conferences: Oct. NAB said in comments filed with the many other cities on the boards. 13-14, Atlanta/Fairmont; Oct. 16-17, FCC that the Commission's proposed Cox Cable Communications and Boston/Marriott; Nov. 10-11, New Or- new guidelines are arbitrary and in- Microband National Systems Inc, the leans/Monteleone; Nov. 13-14, Chica- flexible and, like the old primer they are latter the operator of MDS in a number go/Pick Congress; Nov. 17-18, Den- designed to replace, "misfocus atten- of cities, announced at the end of July ver/Brown Palace; Nov. 20-21, San tion upon ascertainment methodology that Cox would use Microband's facil- Franc isco/Fairmont. and only secondarily, at best, consider ities to expand pay -TV in 12 major cities,beginning with Atlanta. The MDS, which is a "private" television broadcasting service operating at 2150 WFMT Sells Five Years MHz, will carry the Cox programs to antennas on apartment houses and (11,000 Hr) of Sponsorship condominiums not reached by Cox Talman Federal Savings & Loan five years until December, 1980, its cable service. Programs will be dis- Association of Chicago renewed for all-night classical music program and tributed to subscribers via each build- other sponsorships on WFMT, ing's MATV system. Chicago's fine arts station. This A closely similar joint operation renewal is believed to be the largest with Microband has been announced and longest advertising agreement in by Sammons Communications, cable FM history. Talman will continue operator in Kansas City, to take pay-tv sponsoring "Talman Through the programs to apartments, etc., in that Night," heard from midnight to 6 am plus 14 morning newscasts each city. And another will be set up in week and two weekly programs of Phoenix, Arizona, where Microband rare operatic recordings. Pictured at will serve the American Cable Televi- contract signing are Talman Federal sion Co. (see news item in BM/E, Savings and Loan Association August). President and Chief Executive Officer In Chicago, which has no cable TV Dimitry Wanda (left), President and operation, Video Entertainment Inc. General Manager of WFMT Raymond will use Microband to, again, serve Nordstrand (right), and Talman's apartments,condominiums, Executive Vice President Charles 0. hotels, Jarasek (standing). etc.,withpay -TV programs. The MDS signal is converted to a mid -band frequencyin each building, which continued on page 8

6 Circle 103 on Reader Service At WTCN-TV. Total Automation isaReality!

At the heart of the station is a CDL Operations CDL's New System 100 Operations Computer System Computer System, which handles all the program may be configured for "Total" control or may be used switching, effects, material verification, run -sheet initially to perform automatic switching and later printing, FCC logging and machine control. expanded into a fully integrated system, with bJsinesE computer link -up and A:7,:3-25 closed -loop control. The first installation anywhere to have a direct -wire CDL's latest news ... a System 100 with direct -link link to a Kaman Sciences, BCS-Traffic/Accounting capability to a DCC "BIAS" Traffic/Accounting System. System, the CDL System commands the receipt of scheduling information from and the transmission of A truly modular approach, the log verification to the Traffic/Accounting Computer. CDL System 100 is today's answer to Another impressive CDL first at WTCN, is the full closed -loop control and monitoring of two Ampex Total Broadcast Automation. ACR-25 Video Cassette Machines which don't even have to be loaded in the correct air -play sequence .. For more information or to arrange for consultation about the CDL Computer sorts that out! your specific requirements, please call or write.

CENTRAL DYNAMICS LTO Canada: 147 Hymus Blvd., Montraal, Que., H9R-1G1 514-e97-0811 U.S.A. 230 Livingston Street, Northvale, N.J. 07647 201-7671300 NEWS In every case the staple program- The new companies formed in each mingfarefortheoperationsan- cityare:Metrotel,Inc.-Los nounced is first -run movies, at least Angeles-a joint venture of Microband goes over the building MATV system. initially. Corp. of America, RadioCall Corp. Subscribers to the service have small Looming aheadisnationalnet- and Microwave TransmissionCo.; "decoders," which are inexpensive working of MDS-served pay TV. Don Microband/MTC West Coast, Inc.- converters to put the signal on an Franco, president of Microband, an- Anaheim, San Francisco and Sea- unused TV channel. A spokesman for nounced an agreement, in principle, ttle-a joint venture of Microband Video Entertainment told BM/E that, with Western Union for using the Corp. of America and Microwave even though the service was not slated Westar Satellites to join Microband fa- TransmissionCo.;Microvision to start until sometime in September, cilities coast to coast. Implementation Corp.-Denver-a joint venture of they were getting a substantial number is expected within about 18 months. In Microband Corp.of America and of subscribers simply based on news various cities joint ventures have been Tekkom, Inc.; and Microband United stories of its coming. formed by several MDS applicants. Corp.-Atlanta-a jointventureof Microband Corp.of America and United Video Inc.

Satellite Earth Stations Spread Rapidly No other tape cartridge machine A sampling of recent FCC announce- can do so much for so little ments shows that applications for earth stations to help form various satellite communications channels are rising sharply in number. Itis another indication that use of satellites will mush- room in the coming few years, bringing something of a revolution in many Compare for yourself areas of telecommunications. An informal survey by BM/E of ITC's famous air -damped solenoid earth station applications filed during with Teflon coated plunger as- the latter half of July showed that at sures super -quiet operation. least 30 to 40 new earth stations were Deck is milled from a solid block of sought during that period. Many of 1/2 inch thick aluminum. It won't these are for the satellite systems which warp... presents the same flat, stable surface to cartridges every will carry radio, telephone and televi- time. Assures correct azimuth of sion to many previously unreached sec- heads. tions of Alaska. RCA promises launch-

11111P Heavy-duty micro adjustment ings of new satellites this fall; Western head assembly with adjustable Union, American Satellite Corp. and Recorder reproducer $775 tape guides. Designed for easy, accurate adjustments. others important in satellite expansion Direct -capstan, 450 RPM, hys- are all stepping up activity. teresis -synchronous drive motor -with an electrolyzed shaft -minimizes wow and flutter. PD II Eliminates need for rubber belts FCC ACTIONS and separate flywheel assembly.

New trim -line design lets you place SERIES threeunits side -by -side in a 19 Cable Reconstruction inch rack. Each unit is only 53/4 At last-amachine that records inches wide, 51/4 inches high and Deadline Cancelled and plays mono tapes in the "A" 15 inches deep. As reported ina BM/E bulletin in size cartridge, stops automati- Features latest solid state components, even for switching applica- August, the Federal Communications cally on the 1kHz cue tone tions. No relays. Printed circuit Commission has cancelled the March and-offers you longer life, less cards plug in. 31, 1977 deadline for the reconstruc- maintenance and better perfor- tion of major market cable systems in mance than any other cartridge existence prior to March 31, 1972, to machine at an economy price. bring them into compliance with the channel capacity and access require- Reproducer ments of the rules (Docket 20363). $550 How the rule will ultimately be applied to such systems depends, the FCC says, on the outcome of a rule -making Call us and we'll prove It to you proceeding begun June 3rd (Docket 20508) addressed to that question. For complete information call us collect at 309/828-1381. You'll be talking to experienced broadcasters who not only know what Meanwhile, the FCC emphasizes ITC equipment can do-but know what you want it to do. that the cancellation of that particular deadline does not affect the following requirements which must still be met: InTERflATIOnfil TAPETRalICS CORPORATIOn major market stations must furnish by P.O. Box 241 2425 South Main St.. Bloomington, IL 61701 March 31, 1977 "composite" access 112-0001 services on available channel space, continuedon page10 Circle 104 on Reader Service Card 8 SEPTEMBER. 1975-BM/E AT KY -3-111, THE BRAND OF REPORTING AND THE BRAND OF FILM HAVE A LOT IN COMMON.

When the people in this picture wave 3 fingers in the air, what they're saying is, "We're number one" at Springfield, Missouri, Channel 3. Thanks to hard-nosed reporting and hard- hitting promotion, KYTV is the undisputed broadcast king in the Queen City of the Ozarks. By a margin of 3 to 1. In addition to top-notch journalism, smart programming has meant taking maximum advantage of both videotape and film. And when the film cameras roll, the film they use is Eastman film. Over the past year, Channel 3 news cameras unlocked the silver gavel from the American markets in the U.S. and Canada. secret of behavior modification Bar Association, a certificate of And when Virgil packs his rod programs in a Missouri federal achievement from the state med- and reel, he includes a reel of prison; dug up a problem in the ical association, and an Emmy Eastman film. underground water supply; nomination. Then there's Promotion Di- whooped it up at a genuine hoe- For station manager Don rector Clarence Martin (front down; and made friends with a Moeller, film is a logical choice: row right). His 10 -second -film mountain hermit whose only the equipment is rugged enough ID spots for the station not only other visitors dropped in by UFO.for any job, portable enough for built awareness, but they helped Besides winning viewers, even the tightest spots, and the enddevelop a new market for locally their documentaries have won a product "looks absolutely great produced commercials. on the air." In the words of News Director When the KYTV cameras Bill Williams (2nd row, 4th from aren't recording news, the KYTV right), "Film is essential to every- people are busy making it, thing we do. After all, TV is the through locally produced sports visual medium, and it wouldn't and entertainment shows. Take do to have a person on camera Virgil Ward (front row left) and merely reading a piece of paper. the capable assistant you see We use film to tell our story. And, perched on his lap. You can catch besides, our anchormen just their weekly fishing show on 87 aren't that pretty."

FILM.THE BASIC MEDIUM. MI Circle 105 on Reader Service Card SEPTEMBER, 1975-BM/E 9 Cable operators whose, fiscal year NEWS ends after October 31, 1975, the effective date of the rule, should make sure butwithoutreconstruction;major they have the new forms. market systems which startedafter March 31, 1972 must meet the channel DO and access requirements; systems with Institutional Ownership more than 3500 subscribers must meet Limit Increased by FCC the origination facilities requirement. The FCC has proposed rule changes that would seta 5% limit on in- YOU Rules for Antenna stitutional ownership of broadcast and Strobe Lights are Adopted CATV companies. The proposal would amend the Commission's rules relating Ina rule adopted July 8, 1975, the FCC to multiple ownership of AM, FM and has made high -intensity strobe lights WANT TV broadcaststationsandcross - permissable for lighting of antenna ownership of CATV systems. structures,as an alternativeto the The rules now set a 1% limit for standard painting and red obstruction shareholdings in broadcast or cable lighting (Docket 19931). The rule, the operations that have more than 50 THIS? FCC says, does not obsolete acceptabil- voting stockholders. However, mutual ity of the painting and red lights, nor funds have a 3% benchmark and banks Lowered overhead? does it make strobe lighting in any a 5% benchmark for holdings on such OQuick sales info? sense mandatory. corporations. OFaster financial data? However, the FCC reserved the right The proposed change comes after six E] Billing out quickly? to specify, on new antennas, which companies petitioned the FCC to make More avails detail? method would be required in accord- the change. OBetter controls? ance with FAA recommendations or OLess "indispensable" when the standard marking proves to be staff members? confusing, inadequate, or otherwise Rules Revised for LiMore management data? dangerous. Station Applications Broadcasters who want to start or The FCC has amended its rules to limit shift to strobe lighting must get specific the period for filing competing ap- Our "BAT" Computerized FCC authorization. billing, accounting, traffic and plications for new FM and TV stations and for filing petitions to deny, and the payroll Systems could give New FM Translator effect of certain amendments to ap- you all these features as they plications for construction permits for have for scores of stations in Polarization Allowed AM, FM and TV broadcast facilities. large and small markets, In January, 1974, the FCC indicated The rule changes provide a cut-off group and independent. Your it would permit FM translator service date of 30 days after publication of the call will get you complete for individual communities to be pro- application which is similar to those details and, at no obligation, vided by a combination of signals verti- now provided for AM new and major a professional survey of your cally and horizontally polarized. The change applications. This date will situation, with a amendment allows the radiation of ver- avoid the disruption of application comprehensive cost analysis. ticallyandhorizontallypolarized processing that occurs when a new, signals either from a single antenna or mutually exclusive application is re- from two antennas, each fed from a ceived after processing of the original Call toll free 800-426.8872 separate radio frequency amplifier. application is nearly complete, the FCC or clip the coupon and mail to: said. Cable Report Form The FCC said its action was not in- PDPO171111171 tended to reduce the number of com- Revised by FCC parative proceedings (although it rec- gplaRLIU G781181119 1118.The Commission has adopted a rule ognized this Might happen) but to P 0 Box 382000 -ASi.. 8ellmgharn. WA 98225 (206) revising form 326, the cable system "avoid serious (and occasionally re- annual report form, with the aim of peated) disruptions of the processing D I wanl all those things!Sendi73385) details and arrange for an making it both more complete as to procedure." analysis. financial data and less burdensome on I the cable operator (Docket 20247). 0 Send details - no survey nowt Among the changes: Other FCC Actions A new format closely resembling normal bookkeeping schedules An up -dated version of the War of the IName I A new schedule of all basic balance Worlds broadcast that scared millions

ITitle_ _ sheet accounts, replacing one that car- in 1938 scared a lot of people in Rhode I ried only original cost and depreciation IslandlastOctober-andstation IStations date WPRO, Providence, has received a Removal of the requirement that sharp FCC rebuke. After investigating Address_ cable systems report on a calendar year complaints, the FCC concluded that ICity Ibasis-they can now use their fiscal WPRO's advance notifications were year insufficient to prevent public alarm. . . State_ Elimination of the five -community In response to requests for clarification, I I limit on consolidated reporting in favor the FCC has ruled that a broadcast auc- LPhone ._ of a restriction to systems within a 40 - tion of merchandise, with bids phoned Jmile radius of the "lead" system continued on page 12 Circle 106 on Reader Service Card 10 SEPTEMBER, 1975-BM/E Puzzle: How do you get a lot of SWITCHER for a little MONEY?

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Answer: The Computer Image "Pre -wired" Modular Video Controller System.

Now there is a way to plan for the ultimate in switching potential with the least initial outlay. If you can afford the industry's finest broadcast quality switcher with all the latest state of the art techniques and capabilities ...fine! Computer Image will deliver a Model 7243 with 7 buses, 24 inputs, Represented nationally by: four mix/effects amplifiers, preview and program buses with computer compatible control, and save you money! Broadcast Communications Devices, Inc. 5526 East LaPalma Avenue If however, your budget is tight, then you may choose a Computer Image Model for as low as $10,000 - Anaheim, California 92807 17141 528-9505 have it pre -wired for options you know you'll need and have a broadcast quality switcher today that will not soon be obsolete. Broadcast Communications Devices, Inc. 1850 Warburton Avenue, Suite 203 Computer Image Video Controllers are designed with circuit -element building blocks... to give you Santa Clara, California 95050 14081 984-6614 every advantage of add-on capabilities, and reliability of functions. Your basic purchase can be pre - wired for the options found in the most complete switching system. Didier/Denver P.O. Box 1599 Evergreen, Colorado 80439 If your future requirements can be estimated at the time of ordering a basic unit, all the add-on options (3031674-6000 can be pre -wired for only 10% of each option. And, any options ordered within six months of initial H. M. Dyer Electronics delivery will be credited that 10% pre -wire charge! The installation of any option, because it's pre - 31185 Ten Mile Road wired and completely modular, is almost as simple as plugging in the morning coffee pot! Farmington Hills, Michigan 48024 (3131 478-2157 COMPARE THE VIDEO CONTROLLER WITH ANY OTHER SWITCHER ...AT ANY PRICE! Ask about Landy Associates price, performance, versatility, reliability, guarantee and delivery... and ask about some very happy 12 Buxton Road Video Controller users! Cherry Hill, New jersey 08003 16091 424-4660 For further information call or write: Landy Associates, Inc. 20 Winslow Street Vice President, Marketing, Video Controller Division Plymouth, Massachusetts 02360 16171 326-6050 COMPUTER IMAGE CORPORATION Radford Associates 2475 West 2nd Avenue, Denver, Colorado 80223 3203 Lanier Drive (303) 934-5801 Atlanta, Georgia 30319 (4041 237-6097

The Gene Sudduth Company 2809 Raintree Drive Carrollton. Texas 75006, Computer Image, 1972 emmy winner for outstanding achievement in engineering development (2141 242-2690 for its unique electronic animation systems for television.

Circle 107 or Reader Service Card SEPTEMBER, 1975-BM/E 11 NEWS . . . An inquiry to determine ways of Audio Designs and Manufacturing, improving the FCC's Equal Em- Inc.todistribute ADM stock and ployment Opportunity program has custom audio consoles and components in and the stationreceiving someor all been opened (Docket20550) and to all international markets excluding of the proceeds of each sale, is a pro- comments are invited on all aspects of Brazil . . . . WIOK, Long Island, gram length commercial and must be the program with a September 11,1975 N.Y. (formerly WHLI-FM) became logged as commercial matter. .. The deadline. Long Island's first quad radio station Commission has issued a reminder to with a Beautiful Music format for cable system operators that when they adults July 21st . . . . Mann Media, apply for re -certification (by March Inc., a Little Rock, Ark. based com- 31,1977, or when the present franchise Briefs munications firm, has expanded its runs out, whichever is earlier) they radio station ownership with the pur- must present a copy of a new, valid Ampex Corp. has recently entered into chase of stations WNOS-AM and franchise consistent with FCC rules a two-year marketing agreement with WNOS-FM serving the North Carolina cities of Greensboro, Winston Salem and High Point . . . . Smith, Cooper Associates,CATVand pay TV management and consultingfirm, have moved to 56 Haddon Ave., Had- ( (yea t donfield, N.J. 08033; 609-428-7275. Manufacturing of the Magnavox Chromavue 400 seriesvideo color cameras has moved from Morristown, Thereare2CHIRON Tenn. to Fort Wayne, Ind. to increase thequality assurance program and systems make improvements in the design of the camera . . .. The CATV systems serving the Quakertown/Boyertown, Penn. area have been sold to a cable operating providing titling...graphics group headed by Richard Treibick of Greenwich, Conn The CBS SQ method of quadrophonic broadcasting for television production has been adopted by five major New York areastations:WQIV-FM, WRVR-FM, WIOK-FM, WNYC-FM, and WQXR-FM . . . . Meredith Corp. has sold its Omaha TV station, WOW -TV,toChronicle Broad- ElectronicGraphics System, casting Co. . . . . WKY-TV, an CHIRON II NBC-TV affiliate in Oklahoma City, unquestionably the most advanced and Okla., has been named "Newsfilm Sta- versatile system available today... the tion of the Year" by the National Press one system that offers the highest char- Photographers Association. acter resolution and do-it-yourself ca- "Agriculture News Service" has pability for unlimited type font and logo been formed by Snider Corp. to serve the needs of radio stations in the farm- preparation, plus more features than ing areas of Arkansas and the adjacent any other TV graphics equipment. areas in Mississippi and Tennessee withup-to-the-minutemarketin- formation, agri-weather and general farm news . . . . Saunders & Hayes Communications, Inc., a communi- ElectronicTitling System, cations group who provide the business CHIRON III community with a complete range of Al a moderate price CHIRON IIIpro- audio/visualservices,have opened vides more flexibility and quality than their offices at 128 E. 91st St., N.Y, higher priced units, including unlimited N.Y., 10028; 212-427-5509. font and logo interchangeability, large Arvin Systems, Inc., and TeleMa- message storage capability, and char- tion, Inc., jointly announced negotia- acter resolution exceeded only by tions of a marketing agreement wherein TeleMation will assume the exclusive CHIRON II. marketing rights to commercial video products of the Arvin electronics sub- For complete information write: sidiary, Echo Science Corp. .... Systems Wire and Cable, Inc., has announced a contract with Continental Cablevision to supply all of the cable CHIRONtelesystems requirements, totaling approximately , of The Computer Exchange In, $500,000,fortheLansing,Mich. system . . . I] Grace Avenue, Great Neck, New York 11021 316 829-5666 . C-COR Electronics now 851 Burlway Road, Burlingame, Calif. 94010 415 348-1144 offers a complete repair and testing ser- continued on page 16 Circle 108 on Reeder Service Card 12 SEPTEMBER, 1975-BM/E AKAI RELIEVES BACK PAIN.

One of the common dis- need to go on your back. comforts due to excessive The Hustler isa 16 videotaping is back pain. pound color videotape re- Lugging around those corder you sling over your 35 and 40 pound VTRs shoulder, and a 6 pound through crowds, down color camera you can carry stairways, up stairways, up in one hand. hills, steep hills. No wonder 63 TV sta- Well, no more. Akai has tions are now using our a remedy - our new VTS- little Hustler. 150B we call the Hustler. The lightweight, two- The Hustler doesn't piece, one-man operation weigh 35 or 40 pounds that isn't a pain in the back like other recording units. - oranyplace else. It doesn't weigh half that. AKAI, In fact, it doesn't even 2139 E Del Arno Blvd., Compton, Ca. 90220

Circle 109 on Reader Service Card 13 SEPTEMBER. 1975-BM/E RCAannou of thefilm

A special Mylar leader is spliced onto each filmsegment. Film is inserted into a cartridge-no further film handling. Each cartridge can contain from ten secondsto two minutes of film, with complete cartridge flexibility.

A cartridge is drawn into the machineon cue, shown by one of the two projectors, then rewound, all automatically. As the first reel rewinds arid is replaced in themagazine, the second projector runs film from the next cartridge.

The TCP-1624 will play one cartridge and stop,or will play cartridges continuously until it receives an order to The TCP-1624 switches automatically from opticalto stop. magnetic soundtrack, then retums to optical mode.

14 SEPTEMBER, 1975-BM/E 'Icesthe end clip slip-up.

Now you can put miscues, make -goods, and ASCET (Automatic System for Correcting Errors in imperfect film color all behind you. Do away with Telecine). ASCET is available as part of a TK-28 film time-consuming, costly film clip cataloguing, storage, island. With this new automatic color correction retrieval, dubbing, splicing, threading, cueing, option, you can put a high -quality picture on the air playing, unsplicing-and the chances for error that with less than high -quality film. go with them. The RCA TCP-1624Cartridge Film Whether or not you saw the RCA TCP-1624 at Projector is here. In full production now. NAB, contact us now. Your RCA Representative will A survey of TV station logs shows that 89% of gladly demonstrate the end of the film clip slip-up. film segments run from 10 to 120 seconds-the film lengths the TCP-1624 is made to handle. Its magazine holds 24 16mm. film cartridges, each of which can be cued, played and rewound with pushbutton or computer control, with full intermix; even last-minute changes can be made. Once film dips are cartridge -loaded, nofurther film handling is needed. You play the film spot on film, without dubbing. Spot reel makeup and breakdown are eliminated; each break can be programmed in any order. The TCP-1624 is part of a new, problem - solving telecine system from RCA The TCP-1624 Cartridge Projector features two identical, self -threading projection systemswith automatic cue, zero pre -roll, automatic switching between optical and magnetic sound tracks, and automatic film rewind. It can operate in "automatic sequential" or "single event" modes. The RCA TCP-1624 can do for film what cartridge systems do for tape. In fact, the TCP-1624 is fully compatible with a cartridge system, to give you automatic station breaks usingboth film and tape. In addition, the system offers consistent color quality in real time, automatically, with optional

RCA TCP-1624 Cartridge Film Projector. You've seen it at NAB. You can buy it now.

Broadcast RCASystems 15 SEPTEMBER, 1975-BM/E NEWS new TV and video tape facility, has WJAX, Jacksonville, Fla.; and KOCY, opened at 769 Peachtree St., N.E., At- Oklahoma City, Okla., to its lineup of lanta, Ga. 30308; 404-875-9048. affiliates. vice of all manufacturer's CATV am- The Video Group, Inc. a Detroit- American Finance System Inc. of plifiers . . . . based TV production agency, has ac- Silver Spring, MD recently sold all of Cinema Products Corp. has been quired the contents of two TV produc- itscapital stock of Jefferson Cable appointed exclusive U.S. distributor tionstudiosformerly belongingto Corp. and Martinsville Cable Vision for the Cooke Varotal 20-100mm T3.1 Lewron Television, Inc., of New York Inc. to the Mansfield Journal Co., zoom lensforprofessional 35mm City. . . . Central Communications owner of several newspapers . . . . cinematography. WMAZ-TV, Channel TV, Inc., has purchased the Ft. Stock- Conrac Corp. has been awarded a 13 in Macon, Ga., has been named ton, Texas cable system from Mr. $2.4 million contract to provide com- Television Station of the Year by the Neville Haynes and partners. . . . The puter -controlled Telscreen scoreboards Georgia Association of Broadcasters CBS Radio Network recently added at five Olympic sites in Montreal...... Mobile Image Atlanta, Inc., a stations WOAI, San Antonio, Texas; The Customer Service Department at HF Photo Systems Divisionof Technology Inc. now offers its clients a round-the-clock telephone diagnostic service.

. . . . Capitol Magnetic Products, first U.S. company to develop a lacquer formulation for audio mastering discs, has closed down its coating operation in Glenbrook, CT and moved into a new manufacturing facility in Winchester, VA in order to increase production and GISSETTE meet increasingly critical lacquer requirements. . . . Broadcast Electron- ics, Inc. has established a network of eight regional repair and spare parts depots to service the Spotmaster line of equipment. For locations, call (301) 588-4983. A contract totalling approximately $2.3 million has been awarded to Scientific-Atlantafor groundstation equipment for the domestic communications satellite program being under-

taken by the Gov't of Indonesia. . .. A competition sponsored by Berkey Colortran, Inc. at the Syracuse Uni- versity School of Architecture to design a drafting table lighting fixture has re- sulted in cash awards to students totalling $600 and a $400 donation to the Deans Fund at the School. . . . TEAC ON -THE -AIR DIRECT FROM 3/I -INCH CASSETTES Corp. has discontinued its fair trade policies effective June 15, 1975 FOR LESS THAN $3000! National Video has designed special video cassette players and recorders to work with the present state of the art time basecor- People rectors for broadcasting, duplicating or as editingsource machines. These capstan servo machines feature switchable external/internal Donald F. Smith has been appointed 3.58 MHz operation allowing chroma correction in either director heterodyne modes. The capstan can be locked by advanced national broadcast marketing manager composite sync or by a one volt video signal. Variable speed slow for TeleMation, Inc. . . . . Alan B. motion is a standard feature and provides a range from still frame to Bennett, vice-president and general near normal speed. All machine functions, including slow motion, can manager of WKBF-TV, Cleveland, has be remote controlled. been named vice-president, operations and engineering of Kaiser Broadcasting The BROADCASTERS' CASSETTE recorder SCR -1053* and player Co Jim Scherr, formerly with SCP-1052* are part of the PROFESSIONAL CASSETTE' seriesof the General Electric Television Divi- high performance editing and origination equipment from National sion, is the new component engineer Video. For more information contact us. Fora demonstration see us in Booth 116 at the S.M.P.T.E. Conference Sept. 29-Oct.2. with the Broadcast Products Division ofHarrisCorp. . . . . Edmund Henckel has been appointed director, sales engineering of Vicon Industries, Inc The appointment of Roger -4111.NAT/ONALWIMOCORPORATION A. Grover as sales manager has been announced by Walther M.A. Anderson cW Wes/ G/enoaks Sou/cycled, 6/enda/e, Ca/i/oro/cl .9120,9 & Associates, Inc. .Patents Pending Larry L.Hayes has joined continued on page 18 Circle 110 on Reader Service Card 16 SEPTEMBER,1975-BM/E The Effects You Need AtaPrice You Can Afford.. Only From Telemet !

1 1 1 1 1 1 I 1 I 1 I 1 I. 1 1

NUE STRETCH R 0 GAIN LIII V PREVIEW

NMI C/K

CLIP SPOT P08 111111111111111 EFF

BA. ACK 4000HUE RAT LINK B MIX CLIP SOURCEN/S

ps,K

MODEL 7960-9

Introducing the Expandable Model 7960 ProductionSwitcher-from $13,375 1.1 The latest in production effects-all But most of all, consider the quality you r you need, plus the option to expand get from Telemet, the leading name in video input and effects at a nominal quality test, production and switching cost. equipment for the broadcast and telecommunications industry for 25 Model 7960 is a 4 bus switcher with re-entry and an independent preview years. option. The control panel is available in For complete information on Telemet's Amityville, New York 11701 3 standard configurations; 9, 15 or 21 new Model 7960 Switcher, or any of the inputs. Custom panels are available following Telemet products, contact (516) 541-3600 with up to 29 inputs, additional key, your local Telemet salesman, or use TWX 510-227-9850 preview and program buses, machine the enclosed coupon. IO.K. Telemet send me the following:' control, audio breakaway, etc. Sideband Analyzers Video Test 0 Information on Model 7960 Signal Generators Envelope Delay I Expandable Production Switcher Check the features in this quality Test Set Differential Phase and Gain I 0 Complete Catalog switcher: Measuring Systems Remote Control 0 Please put me on your Technical 0 Nine wipe patterns Modulated wipe Vertical Interval Test Sets Video Bulletin Mailing List 0 Wipe borders 0 Wipe key 0 Presettable Sweep Generators Modulators wipe limits 0 Two Mixers 0 Remote Demodulators-Fixed Frequency controlled 0 NTSC or PAL versions Demodulators-Variable Tuned VideoI Name available Signal Conditioners Audio Monitors Title Audio Distribution Amplifiers Video Plus, look at these options: Distribution Amplifiers Pulse Company O Positioner, including circle, square Distribution Amplifiers Clamper Address and diamond patterns 0 Spotlight Amplifiers Monoscope Generator City State lip Chroma keyer 0 Downstream keyer Video Routing Switchers Video Preview bus 0 Non -synchronous Production Switchers Chroma Phone inhibit 0 Color matte and black burst Keyer-RGB Chroma Keyer generator 0 Soft wipes and keys Decoder-NTSC L Circle 111 on Reader Service Card 17 SEPTEMBER, 1975-BM/E B-500series NEWS Coastcom, Concord,Calif., as senior research and development engineer responsible for new product development and design. . .. TeleMation, Inc. has appointed W. Paul Warnockasvice- president, finance. . . . Dr. Walter S. Baer of the Rand Corp. was named as a recipient of one of the 1975 Broadcast Preceptor Awards for his book, "Cable Television: A Handbook for Deci- sion -Making" . . . . Warner Cable Corp. has named Michael J. O'Sulli- van as director of operations for the Central Region. Marc Nathanson, vice-president of B-501 MONAURAL B-502 STEREO COB-503 DUAL -CHANNEL TelePrompTer Corp. has resigned to become president of a new CATV Superior performance 5 mixers 10 inputs Plug-in modules company and to join Harriscope Broad- Choose your inputs casting Corp. as senior vice-president microphone, RIAA phono, balanced high level for CATV . . . . George T. Saddler Standard is 1 microphone 4 balanced high level hasbeen appointed to the newly created Cue on all mixers-built-in cue speaker post of marketing manager for midi°

4 watts rms monitor amplifier magnetic tape at Fuji Film USA.. . . full muting facility K. Blair Benson has been named vice-presidentof engineeringfor from the "FULL CHOICE" line Goldmark CommunicationsCorp. . . . . Richard W. Burden has joined Automated Processes, Inc., as a broad-

McMartin cast . . . salesengineer . Daniel McMARTIN INDUSTRIES. INC 4500 SOUTH 76TH STREET OMAHA. NEBRASKA 68127 (402) 331-2000 Aaron,vice-presidentof Comcast Circle 112 on Reader Service Card Corp., and Robert Weary, secretary- treasurer of Communications Services, Inc., have been named to NCTA's executive committee. .. . Harvie E. Schwartz, Jr., former manager of the AGAIN & AGAIN engineering laboratory of Goldmark T Communications, has joined Byron POTOMAC c'C) "2G Motion Pictures, Inc., asmanager of technical operations of the videoser- INSTRUMENTS IS vices laboratory. David Paul McNamee has been named operations manager of KLIF, FCC Approved Antenna Monitor AM -19(204) the 50,000 watt Fairchild Broadcasting First Group AM station serving the Dallas/ Ft. Worth market. . . . Mark Mason, FirstHarmonic Reading Standard Broadcast operations manager of WVOX radio, Field Strength Meter FIM 41 New Rochelle, NY, has been elected vice-president and director of operations for the Westchester Community FirstDigital Antenna Monitor AM -19D(210) stations . . . . Lynn Distler has been namedsalesmanager for Comrex FirstFrequency Synthesized RF Bridge Source Corp James H. Andersonhas and Coherent Detector SD -31 been elected presidentof ITT Canon Electric. Solid State VHF Combination Field Bill Brock has been appointedre- First gional Strength Meter & RF Generator salesmanager basedin FIM-71 NashvilleforAuditronicsSystems . . . . Benjamin B. Bauer, vice-pres- AndOther FIRSTS to be Announced ident and general manager of the CBS Technology Center, Stamford, Conn., CONTACT US NOW FOR DESCRIPTIVE LITERATURE ON OUR was awarded a "Debby" by the Soci- ety of Audio Consultants during the COMPLETE LINE OF BROADCAST INSTRUMENTATION. recent Consumer Electronics Show in Chicago for development of CBS' SQ quadraphonic system. . . . Raymond 932 PHILADELPHIA AVE. A. Watson has been appointed vice- S301) SPRING, MD. 20910 presidentof McGraw-HillBroad- PTOMAC INSTRUMENTS ( 589-3125ILVER casting Co., Inc., and generalmanager of KERO-TV, Bakersfield, Calif. Circle 113 on Reader Service Card 18 SEPTEMBER, 1975-BM/E TEKTRONIX ANNOUNCES A new concept in portable instrumentation The TEKTRONIX TM 515 Traveler Mainframe looks like fashionable flight luggage, compact and easy tocarry, or slide under an aircraft seat. In reality, it's a five -compartment power module/mainframe that provides power and interface connections for TM 500 plug-in modular instrumentation.Plug in the new (two -wide) SC 502 15 -MHz dual -channel oscilloscope, and you have the beginnirgs of a powerful take -along instrumentation system. You can optimize a TM 500 system to your needs by selecting from more than 30 plug-in modular instruments.With the TM 515 Traveler Main- frame and SC 502 Oscilloscope as a nucleus, select from DMM's, counters, generators, power supplies, signal processors, and even blank plug - ins for your "home -built" circuits.Intended applications include areas from digital field service to medical, from audio/communicatons to on - site industrial controls maintenance. The SC 502 is Tektronix quality, featuring clean triggering characteristics, delay lineinput, trigger view, trigger holdoff,1 mV sensitivity, and the capability of working through the rear interface circuit board with other TM 500 instruments.It features a specially brilliant crt designed and built by Tektronix for use in areas of high ambient light.Include a DD 501 Digital Delay alongside the SC 502 and gain the capability of delay-by- events-you can then obtain stable digital displays from electromechani- cal sources like disc drives that would otherwise be too jittery for accurate viewing on any conventional oscilloscope.Include the DC 505A Uni- versal Counter and DM 502 Digital Multimeter to complete your TM 515 package, and discover the benefits of simultaneous counter and DMM capability with trigger level readout at the touch of a push button. The TM 500 concept lets you take along on field servicing trips the same instruments you use in the lab or for production testing, thereby enabling you to maintain the same standards on the "outside". The SC 502 Oscil- loscope, for example, may be used as a bench instrument in any multiple - compartment TM 500 mainframe, and it offers unique systems capabilities, as well, when operated in a rack in the RTM 506.

Contact your local Tektronix Field Engineer or circle the appropriate reader service number for a demonstration of TM 500 irstrumentation or additional technical information on the TM 515 Traveler Mainframe and SC 502 Oscil- loscope.For an up-to-date TM 500 Catalog writetoTektronix,Inc.,P.0. Box 500, Beaverton, Oregon 97077.In Europe write Tektronix Limited, P. 0. Box 36, St. Peter Port, Guernsey, Channel Islands TEKTRONIX® committed to technical excellence

Circle 114 on Reader Service Card INTERPRETING THE & REGULATIONS

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

In a move surprising for its swiftness, the Commission proposed presently has fewer than two independent aural recently relaxed its AM acceptability and "suburban" transmission facilities during the portion of the day for policy restrictions, thus "opening the door" for existing which the new service is proposed. Put another way, in AM stations to seek power increases and fornew stations order to secure fulltime service, the daytimer must show to secure assignments.' Essentially, the new AM rules that it will provide the first or add a second fulltime eased past restrictions in four areas: 1existing AM facility to the community of license and, that no unused power increases, frequency changes and fulltime ser- FM stationisallocatedtosaid community. Note: vices, 2 new stations proposing daytimeor unlimited AM -FM combinations, licensed to the same owner in the time operation, 3 creation of a new power classification same community, are considered as one. In addition, its and 4 easing of "suburban" policy requirement. "less -than -two -services standard" would not apply if an The new AM rules eased considerably those instituted existing daytimer proposed a new unlimited time station by the Commission in 19732 which were designedto if such would provide a first or second nighttime facility conserve the remaining AM spectrum space for the as- for the community. In the alternative, if the aforemen- signment of stations that would provide service to under- tioned criteria do not apply, proposals which meet the served areas and to encourage in areas "25% white (discussed in "New Facil- lacking radio services. Pursuant to a rulemaking inquiry ities" section below) would be accepted. initiated in 'November 1974, the Commission herein An existing daytimer or fulltimer may also apply to found the 1973 rules to be "unnecessarily restrictive in change its frequency to obtain a better allocation without controlling the rate of expansion of the standard broad- being subject to the restrictions which apply to new sta- cast service, and that in some cases they failed to afford tions. Like applications for increases in power, ap- reasonable opportunities to satisfy developing needs for plications for changes in frequency need only meet the new and additional aural service." The new AM rules standards covering overlap and daytime and nighttime are designed to encourage community -oriented radio interference. Regarding existing nighttime stations, they servicesto manyadditionalseparateanddistinct may likewise seek power increases on their present fre- localities, especially newly -emerging suburban popula- quencies and make changes in directional antennae tion centers. Comments on the four centralareas of systems providing they do not cause interference to other Commission action follow. co -channel stations. The 50% rule on RSS applies here Existing AM Station Changes and a Theoretical design may be utilized for the DA. In addition, a nighttime station proposing to change its The Commission loosened its power and time restric- frequency must meet the same interference standards as tions and opened its doors for applications forpower discussed above. Note: The directional antenna design increases and night-time services, so longas interference must be a Standard design in accordance with the rules. standards are maintained. Existing daytime stations may seek power increasesto New Facilities the maximum permitted on their channelso long as they The AM rule changes will permit new nighttime or meet Commission interference standards3. That is,in daytime assignments to communities which meet the fol- effectuating its power increase, the stationmay not cause lowing standards. or receive new interference; if the station presentlyre- Assuming the availability of a frequency, the Com- ceives interference, it may continue to receivesame so mission will accept applications for new nighttime or long as its total interference is not greater than thatpre- daytime AM assignments to communities with fewer sently received. than two aural facilities licensed to said community Existing daytimers may also apply for fulltime service during the relevant portion of the broadcast day. Of on its present or another frequency upon a satisfactory course, the Commission still maintains its existing over- showing that the community for which the station is lap and nighttime interference standards. 'Report and Orderin FCC Docket 20265 (lune 27, 1975). If a community has two or more fulltime aural facil- 'Report and Orderin FCC Docket 18651 (February 21, 1973). ities, applications for new stations may still be tendered 'FCC Rules and Regulations, Section 73.182(o). providing they meet the following exceptions. First, the

20 SEPTEMBER, 1975-BM/E C punr) Cl) gym-

IntroducingaColor Corrector for Electronic News Gathering. Electronic News Gathering makes tough demands upon the broadcaster. Color imbalance and colorimetry problems are frequently encoun- tered. Matching remote camera shots to indoor studio programs or assembling tapes from different locations or cameras is "chancy" at best. Often that fast -breaking story doesn't allow for camera rebalancing! Thomson-CSF Laboratories now provides a solution to such difficult encoded signal color problems. With the Model 5500A Color Corrector, you'll be able to rebalance and match video signals after encoding. It can be used either after the play -back tape machine or following the microwave receiver during live coverage. In most cases, a noticeablyimproved color picture will result. For ease of operation, a Remote Control unit is included as standard equipment. As an added feature, an optional automatic Sensor unit is also available to control the Color Corrector for telecine use. Whether for Electronic News Gathering, tape production or tele - cine use, the Thomson-CSF Laboratories Color Corrector System should be working for you. Interested? Give us a call.

THOMSON-CSF LABORATORIES, INC. 37 Brownhouse Road, Stamford, Connecticut 06902 (203) 327-7700 / TWX (710) 474-3346 Circle 115 on Reeder Service Card PANASONIC PRESENTSA OF COLOR Soyou don't have to pay for

WV -2200: Battery -run featherweight- for color anywhere! The ultimate in economical portability. About $4,500, including 6:1 zoom lens. Two vidicons. 11/2" viewfinder. Ideal for scouting store locations, plant sites- or next week's sports opponent. WV -2100 P: Color for schools and industrial studios. (Over 400 were purchased last year.) About $5,500! Two 2/3" separate mesh vidicons, one for luminance, one for chrominance. AK -900: Self-contained, broadcast color for less than $30,000. Three 1" Plumbicons (Trademark N.V. Philips). 10:1 F2 zoom lens. Separate color signals. Tilting viewfinder. Horizontal resolution of 500 lines at center. *Lens additional. WHOLE NEW SPECTRUM CAMERAS. more camerathanyouneed.

WV -2800: Color for film chain, remote, security uses. Lightweight camera without simple to operate, and can be used with any NTSC color system. Horizontal resolution 400 lines at center. About $3,5)0!

WV -2300: Mobile color for schools and industry. About $3,800:' Less than 10 pounds! Simple operation. Two vidicons. High S/N ratio. Tally lights. Needs only 50 footcandles.

For more details and Epecs, write: Color Cameras, Panasonic Video Systems Division, One Panasonic Way, Secaucus, New Jersey ('7094 Panasonic just slightly ahead of our time Circle 116 on Reader Service Card Anyway you look at them, Unimedia's SMT color moni- torsaregood news! Professional quality... affordable FCC RULES & REGS cont. from page20 prices. The SMT Lineis a complete family of one -gun color monitors, from 9 -inch portables and rack models through applicant must demonstrate that its facility would servea 12, 15, 17, up to 19 -inch rack -mount models. All share 25%"white area," i.e., that area lacking in inter- the same clean styling, single gun color tube picture ference -free, full primary service from either an AM or quality, and blue -gun only set-up convenience. Profes- sional options include pulse -cross, A -B input, external FM station. Note: "Primary service," in its "white sync, switchable underscan, and tally -light features. Most area" context, refers to a 1 mv/m AM or FM signal from are priced right around $1,000. Some higher... some another AM or FM station. As mentioned above, these considerably less. rules obtain both to (1) new facilities and(2)daytimers If you're a broadcaster, CCTV or Cable operator,or pro- seeking to go fulltime. duction studio operator you can share in the dollar savings inherent in Unimedia's simple, straightforward SMT design. NewPower Classification Now you have a golden opportunity to replace obsolete monochrome models with new SMT color monitors at The new AM rules also create a new2.5 kWpower attractive prices. Or replace tempermental large -screen classification to provide an intermediate step between the color jobs withSMT 12s, 15s, 17s, or even the new 19s. present 1 kW and5kW classifications specified in the Ifyou're starting a new facility, Unimedia monitors can rules. Power classifications permitted by "station class" save enough to buy you an additional piece of needed are listed below. equipment. And Unimedia SMT Color Monitors are professional in Station Class: Power Level every sense of the word. Their long-term dependability Iv 250, 500 watts or 1.0 kW is the result of engineered design simplicity and quality IIIA 1.0, 2.5 or 5,0 kW components. We've delivered over four thousand units to IIIB 500 watts, 1.0, 2.5 of 5.0 kW satisfied customers in the last four years. You'll find NTSC IA 10.0, 25.0 or 50.0 kW and RGB models. In the nine -inch line you'll choose from IIB oi D 250, 500 watts, 1.0, 2.5, 5.0, singles, duals, and combination models with waveform 10.0, 25.0 or 50.0 kW monitors, vectorscopes, or audio speaker -amplifiers. Or 10.0, 25.0 or 50.0 kW combine a color nine with a high resolution monochrome nine for camera focus and registration. The Commission felt that the creation of a new step You really owe it to yourself to check out the complete between 1 kW and5kW "facilitated the maximum use Unimedia line before you install another monitor in your of facilities" in cases where power greater than 1kW was facility. Write ... or phone today. Remember ... saving feasible, but not as much as5kW. money isn't all thatbad! UNIMEDIA, 22525 Kingston Lane, Auburn, California95603 SuburbanPolicy Telephone:(916) 272-1971 Grass Valley The newAMrules also relax the heretofore trouble- some "suburban" The Com- mission's "suburban" policy, adopted in1965,required Grand color monitors... applicants for AM stations in suburban communities to rebut the presumption that if the proposed station de- Great dollar savings! livered a5mv/m signal over a nearby larger community, the facility was intended to serve the larger community. In its new AM rules, the Commission will now forego applying their "presumption" to (1) uncontestedap- plications for new stations and(2)increases in power of existing stations. Hence, the rule will be limited to mutually exclusive applications that are involved ina comparative hearing. Note: The Commission issued its caveat that applications for power "clearly in excess of that necessary to serve the proposed community of license and its immediately surrounding areas" will be examined carefully. Conclusion In relaxing its acceptability restrictions and "suburban" policy for AM stations, the Commission has opened the door for a flood of AM applications seeking new or changed facilities. If a large backlog of un- processed applications develops, it said it would likely impose measures to control the rate of application filings by declaring "open" and "closed" seasons for the filing of same. These measures will, if implemented, betem- porary and advance notice will be given. The rule unimEDia changes are effective August22, 1975.Applicants for unimEDia new or changed facilities should stay current with the unimEDia Commission's processing schedule. BME °Designed to implement Section 307(b) of the 1934 Communications Act calling for a "fair, efficient and equitable" distribution of broadcast facil- unimEDia ities in the U.S. Circle 117 on Reader Service Card 24 SEPTEMBER, 1975-BM/E Ifwedidn't make a better refurbished quad head than either Ampex or RCA and withabetter price/performance ratio we'd have been out of it along time ago. (And that's the truth)

Videomax began to make refurbished refurbished Ampex and RCA heads. quad heads 5 years ago. We were And no one, according to our long list convinced a better job could be done of customers, has a more respected and that you should have a choice. We manufacturing and Q.C. history. were also convinced that a small So, if you need a Mark X or a Mark Ill company of specialists could offer a quad head in our "L" or "M" Series ... or better product than the large an RCA High Band or Low Band quad multi -product manufacturers. Nothing head in our "M" Series ... contact since has changed our minds or the Videomax. minds of our more than 600 customers. (1, Today, no one in the business comes videomax. close to our level of cost/performance. Videomax, an ORROX company No one in the business exceeds our 154 San Lazaro Avenue warranty protection. No one in the Sunnyvale, CA. 94086 business offers a wider variety of (408) 739-5391

MARK X MARK III RCA LOW BAND RCA HIGH BAND

SALES & SERVICES New York Los Angeles Washington, D.C. (212) 947-8031(213) 980-7927(301) 384-4733

Circle 118 on Reader Service Card SEPTEMBER, 1975-BM/E 25 How To Backtime WithYour Pocket

CalculatorBy Mary F Zoller As an air -director for 39 TV's -Eyewitness News,- theauthor found her attention focused on the second hand ofa too -small clock hanging on a dark wall fifteen feetaway. To determine whether the station was running early or late she turned to the calculatoras a digital backtimer. "It's the greatest aid since thestop watch,- she says.

If you ever have trouble backtiming or addinga column 940. You can keep adding 940until the seconds read of minutes and seconds, here's an efficient methodyou under 60. For example: can really count on. clock time calculator display Adding segment times, predeterming reel changes, 4:00:00 Your program hour startsstraight up at 4000000 backtiming, totaling commercial material in an hour, and 20 Movie open runs 20 filling breaks can all be done quickly and accurately with 34:15 Reel one of the movie is 34015 a regular eight digit calculator. Any eight digit standard 2:30 Break one at 4:10 runs 2030 four function calculator can add and subtract hours, 2:50 Break two at 4:20 runs 2050 minutes and seconds without changing the figures to + 2:40 Break three at 4:30 runs + 2040 their decimal equivalents. 4:42:35 The total is 4040155 Because calculators function differently from model to The seconds are way over 60 so add 940 + 940 model, you may have to set up the procedure a little 4041095 differently i.e.: as to whether you punch + before the number you enter or = afterward. Regardless of the The seconds are still over 60 so add 940 again + 940 sequence, the events are the same, and the results fast. (4:42:35) This is the converted total OR time 4042035 for a reel change. Directors, both on -air and production, can utilize the calculator with ease; as can traffic, accounting and sales. 940 is the key. What you are doing with the addition The method is simple, but like anythingnew, it takes a of 940 is to carry the hundred digit over past 0 whichyou little getting used to. To compute time, use the following have in place of a colon. procedure, watch how it compares to clock timeas illus- Use 940 to convert seconds to minutes. trated in the left column. Use 940000 to convert only minutes to hours leaving the seconds undisturbed. clock time calculator display Use 940940 when converting both minutes and 3 As your initial entry use the hour 3 seconds simultaneously, as in the example below. 3: and for each colon add 0 30 4:42:35 To the previous total add 23:50 4042035 3:28 followed by your minutes 3028 +23:50 + 23050 3:28: a 0 for the colon 30280 5:06:25 3:28:57 and your seconds 3028057 To convert this total in both minutes 4065085 and seconds, add 940940 + 940940 (5:06:25) The correct time stands at Now insert this series as one entry. Your commercial 5006025 break runs 1:05, so add 1, a 0 for the colon, and 05as a The same principles apply to subraction. For example: single entry. 5:30:00 Local news ends at 5030000 + 1:05 + 1005 - 1:30 Last commercial break runs - 1030 3:30:02 Your total is 3029062 5:28:30 Last Commercial break should start at 5028970 To convert, subtract 940 - 940 Here now is the key to the system. Because the (5:28:30) 5028030 seconds total over 60, add 940 to the total. Sports segment runs 4:40 and includes - 4:40 :45 for bull session. Subtract - 4040 + 940 5:23:50 Sports would start at 5023990 (3:30:05) Your converted total now is 3030005 To convert, subtract 940 - 940 (5:23:50) 5023050 Whenever your seconds show up as 60or more, add The only pitfall to avoid when learning to count time on a calculator is to remember to use the 0 in place of a Ms. Zoller is a producer and on -air director for KCST, colon. Once you've mastered that small obstacle, you've San Diego. got it. BM/E

26 SEPTEMBER, 1975-BM/E AURAL STUDIO -TRANSMITTER AND REMOTE PICK-UP LINKS All solid-state aural studio -transmitter and remote pickup links are available to fulfill almost every requirement. Moseley Associates, Inc., has pioneered many STL and remote pickup concepts - solid- state systems, true direct FM modulation, and composite operation (FM stereo on a single link)... just to name a few. Front -panel metering of all important parameters is included on all Moseley STL and remote pickup transmitters and receivers. AURAL STUDIO -TRANSMITTER LINKS PCL-101 - AM Mono - 148 to 960 MHz PCL-505 - AM/FM Mono - 148 to 960 MHz FM Stereo (Dual) 1=1 PCL-505/C - Composite Stereo - 148 to 960 MHz (Single Link for Stereo)

AURAL REMOTE PICKUP LINKS RPL-3 -2 microphones, 1 line - 148 to 174 MHz RPL-4 -2 microphones, 1 line - 450 to 470 MHz AMP -3 and AMP -4 Companion RF Power Amplifiers

Circle 228 on Reader Service Card TRANSMITTER REMOTE CONTROL SYSTEMS Moseley Associates Remote Control Systems are field proven at numerous installations. Two basic types of systems are available - analog and digital. Both systems can be operated in either a wire or wireless mode. ANALOG REMOTE CONTROL TRC-15A - 15Channels - Push-button Channel Select DIGITAL REMOTE CONTROL DRS -1A Digital Remote System- :Tea 0 Up to 30 Channels 0 Companion 24 -Channel Status Subsystem 0 DLS-1 Digital Logging System Records up to 20 Parameters DCS-2 Digital Control System - O Up to 90 Channels O Multiple -Transmitter Site Operation O Up to 60 Status Channels O PLU-1 Parameter Logging Unit Records up to 20 Parameters O Computer Option - Allows Computer -Assisted Operation, Even Full Automation

Circle 229 on Reader Service Cara OTHER MOSELEY PRODUCTS IN Full Remote Control Accessories Full STL Accessories FM Subcarrier Generators II Stereo Generators IN Remote Pickup Accessories FM Subcarrier Detectors

111 CASTILIAN DRIVE MOSELEY ASSOCIATES, INC GOLETA, CALIFORNIA 93017 SANTA BARBARA RESEARCH PARK TELEPHONE (805) 968-9621 TELEX 658448CABLE: MOSELEY Circle 230 on Reader Service Card SEPTEMBER, 1975-BM/E L7 Picking the Right ENG System for

Your Marketby Rupert Goodspeed

If you don't have $75-100,000 for a high quality ENG system, you don't have to let the Revolution pass you by.

We take you now to Portland, Oregon... ditions, as long as there's adequate light. Some 1/4 -in and Stand by Portland, five second roll 1/2 -in videotape recorders even include an assembly edit .. .where our correspondant, Ross Hunter, has mode, allowing a reporter to field edit an article or fea- the latest word on the fishing rights... ture. In the case of fast breaking news stories this tech- Okay, New York, sync lock nique does not seem practical because you don't know .. .controversy between the U.S. Government how the story will end, and a taped story cannot be built and the Umatilla Indians. in any logical sequence. Therefore you'll still need a Switch to Portland videotape editing capability and you'll have to use a Good evening, we're standing at Celilo Falls and $14,000 time base corrector in order to meet FCC specs off to the north you can see... when you air your finished tape. All of which brings us Looks good Portland to a total of $35,000 for a single camera electronic journalism package of this performance level. It had better look good, Portland, because your efforts There are still other approaches to ENG for some at the moment are being directly compared to those of smaller market stations. Most stations already have a other network news gathering crews throughout the quad videotape machine, and by judicious scheduling the nation. news department can usually be allocated some time on Network news groups, network owned -and -operated it to put their shows together. Using a one- or two -tube stations, and key network affiliates in major markets camera and a mating helical scan portable VTR, news- have an obligation to present a quality product to the men can cover an event, bring all the tapes back to the viewer. It's not an easy obligation to fulfill, because you studio and then transfer them to quad through a time base have to be in the right place at the right time, with the corrector; after which the product can be edited and as- right kind of equipment to cover a fast -breaking story. sembled like a regular television show. The ENG in- Electronic news gatheringtechniques have been vestment now comes down to approximately $25,000; pioneered by the networks and their owned -and -operated (including the time base corrector) assuming of course stations. The networks have indicated to equipment that the station already has color editing capability in manufacturers the kind of ENG gear they require and the house on quad VTRs. manufacturers have responded. The problem for the An even more economical approach to ENG is to smaller broadcasters who want to be able to provide a obtain a one- or two -tube camera with a matching feed on a hot story originating in their area is coming up VTR-either cassette or reel-to-reel-and invest in one with the capital. And the move to ENG may be resisted of the lower cost time base correctors. Here again there's by news crews who fear that it could trim their ranks, or an inevitable trade off for the cost reduction. Less ex- even eliminate jobs.* pensive TBC's use a different technique to accomplish Previous to the advent of electronic journalism every- their goal, resulting in a slight degrading of SNR and one had about an even break: 16mm film was equally definition in the finished picture. The originating pack- accepted everywhere. But now the station who can offer age has come down to about $10,000, but you still face immediate 'direct from the scene of action' through ENG an editing problem. A 1/2 -in EIAJ color editing machine viewing has gained the upper hand. can cost as little as $1,900 but that's really the hard way But it's not easy for the smaller or medium sized to edit. market to find the $75,000 to $100,000 to set up a first The most satisfactory solution appears to be investing class system. To match 16mm quality, a 3 Plumbicon the required $13,000 in a decent editing system dedi- tube system plus a good video tape recorder is necessary. cated only to news and special events; to put your show Is there a reasonable alternative? Of course there is, but together on this equipment and air it directly through a you trade off something for the lower dollar cost; namely time base corrector. quality of finished product. And because of the reduced It's been suggested that the most economical and prac- sensitivity of your lower cost equipment there are limita- tical method, although not exactly electronic journalism, tions on where, and under what conditions you can is the use of super 8mm film with the newly available shoot. broadcast super 8 color scanner (Kodak Videoplayer Two -tube color camera systems have proven capable VP -1). Requiring only the investment in some super 8 of doing an excellent job under a wide variety of con- single system mag sound cameras, an editing system for

"However, except for the small two -tube hand-held cameras, ENG equip- Mr. Goodspeed is vice-president, technical operations, ment weighs 50 lbs or more (not counting the VTR). Thus, two -man crews Tri-Tronics, Inc., North Hollywood, Calif. are necessary whereas one man can handle a 16mm film camera.

28 SEPTEMBER, 1975-BM/E super 8, and one of the super 8 scanners, this entire 16mm film' conveniently forget that at one time they had system can be put together for under $3,000; (exclusive to lay out about $50,000 for editing and processing of the rapid processor). A lot of people knock super 8, equipment. And keep in mind there's that $85,000 color but if you want to see a really surprising result, just feed film island which has to be at least partially amortized the output of one of the scanners through an inline verti- against your news operations. cal aperture corrector. Voila, a fine airworthy product at It all seems to boil down to this: ENG, or electronic a nominal cost. journalism if you prefer, is a fact of life. To remain But if you don't already have an aperture corrector, competitive you'll have to indulge in one form or another that adds another $3,000, meaning that now you're up to of the art. In view of that inescapable fact it seems ad- $6,000 and you haven't started to buy or process film visable to make a careful examination of your com- yet. petitive position in terms of the market you serve, the Dilemma! If you send your film out to be processed budget you can justify for equipment, the savings you you've lost the immediacy of a hot report. If you put in a could make by intelligent utilization of manpower and rapid processor for super 8 you'll add another $12,500. equipment, and the status and image you need to main- That brings the total package to $18,500, and whoops, tain. you're back up there to electronic journalism costs. Weighing all these factors will enable you to de- That's right, there's no such thing as a free lunch. termine the type of electronic journalism package best Those who advocate staying with 'good old reliable suited to your own needs. BM/E

Camera Editing and Playback Equipt type & VTR Type Processing or correction Total Results obtainable and cost And cost Equipt. cost Equipt & cost Cost advantages or disadvantages 16mm Audio 16mm vwr/spl. Film Telecine High quality, good definition, easy film Rec. color proc. (10% of 85K) to handle, 1 man crew possible, direct $3.5K 5.K 47.K 8.5K 64.K report not avail. High cost of film 3 Helical Helical VTR Time base High quality excellent definition, good Plumb. cassette Editor/contr. corrector 74.5 oper. flex., low oper. cost, good pix 45.5K 3.K 13.K 13.5K K direct from action scene. 3 Helical Helical VTR Time base Good quality, close to 16mm, good flex. Vidicon cassette Editor/cont. corrector & immediacy-pix fair under lower light 27.K 3.K 13.K 13.5K 56.5K & poor under dim light. low oper cost. 2 tube R. to R. VTR Reel to reel Time base Fair quality under brightly lit cond. col.cam. 1/4 or 1/2 in or cass. edit corrector flexible & immediate, lower qual. under 5.K 3.K 13.5K 34.5K low light, low weight, 1 man package 1 TUBE Helical Exist. Quad Low cost Fair quality under good light, econom. col.cam. cassette W/edit. T.B.C. flexibility limited, less quality under 5.K 3.K (150.K) 3.K 11.K low light, light weight, 1 man package Super 8 8mm spl 250 Sup 8 proj & Fair to good qual depending on light mag snd Single Sup 8 proc. Aper. corr. and processing, loss of immediacy low $450 syst. 12.5K 5.K 18.2K cost easy for 1 man, less qual than 16

The AKAI camera/VTR combo is low-cost route that WCBD-TV, Charleston, S.C., and many other stations have taken to ENG.

Low cost editing equipment is now available for either cassette recorders or reel-to-reel machines. Shown is the Sony system.

Low cost JVC package includes the PV -4800 ($1950) reel 29 recorder and two -tube GC -4800 camera ($3750). WKY-TV at the game in Oklahoma Bowling Green State University, thi

The Marconi Mark VI -B Camera is in wide spread use in the U.S. and around the work Marconi, innovatDrs in camera technology since Day One.' First with automatics- complete line up-even a self -diagnostic check-out facility.

BEST PERFORME

.A11111116. WBGU-TV programming at lark VIII -B Camera wins every time. i World's first fully automatic color camera " Super -Sensitive. Saving studio energy by operating at f/4.0 in 75 f.c. Or operating on remotes when others quit Small and lightweight, using 1/2 -inch cable 0 Always making 'Big -Picture' pictures

AUTOMATICALLY AND NOW, MARK VIII QUALITY IN A PORTABLE!

efonisIn 411\ 1309-...4St neMO ©DM, 3rogramming WBGU-TV e 12C on Render Service Card Stone Mo ai @*WC ( ,O4) 469 - Executive 100 Stonehurst Court N.J.00647 (201) 767-7250 How To Match Turntables To The Format And The Pocketbook Recently three classes of turntables have taken shape on the broadcast market. Each can work well in the right seting.

Time was when there were two classes of turntables for hundred it would probably work, but ours was necessar- broadcasters-good and bad. In a sampling of users ily much smaller. undertaken for this article, BM/E found, as was to be What did have the weight of consensus and logic was expected, that you can still get plenty of opinions for a currently emerging assignment of classes of turntables putting the available turntables into those old categories. related to classes of use. This division could not get The only trouble is that the engineers surveyed did not started until a few years ago because before that one of agree on which were which. With a sample of several the main classes did not exist. The movement is still in its early stages-but the outlines look firm. What we might call the "standard" table, and refer- ring particularly to the brands that have survived on the market over the years, is a rugged,long-lived, highly reliable table, with a high -torque motor for quick starts. Price is usually in the $200 to $500 span. The second class is the new direct -drive turntable, which has won a special, if still very small, niche on the broadcast market: prices $300 to $600. The third is the thousand -dollar - plus super -performance machine, also with a definite but obviously limited market. Taking the second class first: the direct -drive table has a motor that turns at the turntable speed, and the table Russco "Studio -Pro" exemplifies standard broadcast -quality fixed directly to the motor shaft. With such a slow -turn- turntable built for quick starts, heavy use with minimum trouble. ing motor "external" speed control becomes crucial and this is usually accomplished with a servo system: the table acts as a generator -tachometer, developing an error signal through comparison with some standard. The error signal can be fed into the motor drive to correct the speed. The slow -turning, low -torque drive means very low vibration; the servo system means extremely low flutter and wow. The disadvantage is the comparatively slow start. The direct -drive table came along as pressure built up on certain classes of stations for ever better sound, making the table's particular qualities highly desirable. The FM or AM station for which the quality of sound is an important competitive element has had to upgrade that quality steadily over the last few years. "Hi-fi con- sciousness" has spread through the audience, and home receiving equipment used by such listeners keeps going up in quality. There is nothing presumptive about this trend; a Turntable of all-out mechanical sophistication, and very high number of stations have felt it directly expressed in list- price, is the EMT 930, imported by Gotham Audio of New York. ener dissatisfactions, as described in previous articles in BM/E. It applies not only to "classical" music stations, but also to purveyors of MOR, or "beautiful music," or any other format if the station puts heavy emphasis on the quality of the sound, and wins the allegiance of a substantial number of listeners who are "turned on" to high-grade sound.

32 SEPTEMBER, 1975-BM/E In Chicago, MOR station WYEN shifted to the direct -drive Panasonic SP -10's to reduce turntable flutter and rumble. Disc jockey Gary Meier cues up one at his right; another is to his left, in the background.

An example noted in the October, 1974 issue of BM/E one of the new breed of direct -drive turntables. A few of is veteran classical music station WQXR in New York. the others with similar experiences and the same solution About three years ago the station had a sizeable listener are WCLV, in Cleveland; WTMI, in Miami; WCRB, in revolt on its hands because of alleged high turntable Boston. In Chicago, MOR station WYEN went on the rumble. Basic in this is the spread of medium-priced air with Panasonic SP -10's because the management puts home playback equipment with extended bass response. its money on a very clean sound (among other elements) The listener who hears a walloping 50 or 60 Hz from his for survival in the fiercely competitive Chicago radio own records, without any audible interference from his market (BM/E, May, 1972). The approach has worked turntable, will not stand for a subway -style noise along out; WYEN is surviving quite healthily. with his broadcast music. A broadcaster should have The extremely good speed stability-low wow and professionalequipment, presumably superior tothe flutter-of the servo controlled tables becomes important home grade; it is a really serious blow to the "profes- when the program includes a lot of slow piano, organ or sional" image if the broadcaster's record playing equip- violin music, again intended for fairly sophisticated list- ment is audibly inferior. eners. (Note: jazz buffs are likely to be just as high on WQXR solved the problem with the Panasonic SP -I0, "hi fi" as classical listeners.)

SEPTEMBER. 1975-BANE 33 CrEation of the new Calibration Standard dnEEd... thE accEptancE of Stanton's 681 TRIPLE -E is unprEcEdEntEd!

It was no accident! at all frequencies.It achieves perfectly flat frequency The Recording industry needed a new calibrationresponse beyond 20 kHz. Its ultra miniaturized stylus standard because it had been cutting discs with higher assembly has substantially less mass than previously, accuracy to achieve greater definition and sound quality. yet it possesses even greater durability than had been So, the engineers turned to Stanton for a cartridgepreviously thought possible to achieve. of excellence to serve as a primary calibration standard Each 681 TRIPLE -E is guaranteed to meet its speci- in recording system check-outs. fications within exacting limits and each one boasts the The result: the new calibration standard, The Stanton most meaningful warranty possible. An individually cali- 681 TRIPLE -E. brated test result as packed with each unit. The rest is history! As Julian D. Hirsch of Hirsch -Houck Labs wrote in Major recording studios adopted it.. . as did many Popular Electronics Magazine in April, 1975: "When we of the smalier producers. Radio stations across the world used the cartridge to play the best records we had put the 681 TRIPLE -E on all of their turntables, both for through the best speaker systems at our disposal, the on -the -air broadcasting and for disc -to -tape transfer. results were spectacular". And, audiophiles by their purchases have voted it Whether your usage involves recording, broadcasting, the oustanding stereo cartridge available. or home entertainment, your choice should be the choice The Stanton 681 TRIPLE -E offers improved tracking of the professionals . . . the STANTON 681 TRIPLE -E.sraNTon Write today for further information to Stanton Magnetics, Terminal Drive, Plainview, New York 11803 Circle t21 on Reader Service Card 34 SEPTEMBER, 1975-BM/E Your station's turntable cannot matchthe performance orreliability of thisone.

The Technics SP-10II. Direct -Drive System (an extension of the rotor shaft), the SP -10 II has less Every broadcast engineer wants to get rid of rumble, than 0.03% wow and flutter (WRMS). What's more, wow and flutter. That's why many it'll stay less than 0.03% regardless of AC line voltage, radio stations, including the because the motor is electronically controlled by an country's largest dassical music analog feedback system. station, WQXR-FM, use a Direct -Drive Reliability Technics direct -drive turnta- The SP -10 II is designed for the grueling work of a ble. Now, Technics introduces broadcast turntable. You can stop the platter with your the SP -10 II. A new professional hand for hours without the danger of stretched belts direct -drive turntable, with something else every or damaged idlers. And the SP -10 II will maintain its engineer wants. Abundant torque. high level of performance for years. Abundant Torque So if you'd like to improve the quality of your At 33 rpm, the SP -10 II will reach its exact playing speed station's signal without spending a fortune, move up within one-half revolution. This fast start-up speed is to the Technics SP -10 II. due to Technics' manganese -aluminum permanent magnet. No Audible Rumble Technics The SP -10 II completely eliminates audible rumble by Panasonic PANASONIC because it's driven by a brushless DC motor that spins Consumer Affairs Division, Dept. B9, One Panasonic Way, Secaucus, N.J. 07094 at exactly 33 or 45 rpm. This slow speed introduces H Send me the technical information on the Technics SP -10 II Turntable so little vibration into the system that any rumble Cl Have a Technics audio engineer call for an appointment. NAME TITLE remains a silent -70 dB (DIN B). Ned, Pr.nt No Audible Wow 81 Flutter COMPANY__ The SP -10 II has no belts, idlers or gears to produce ADDRESS . CITY STATE /II' variations in speed. The only moving part is the motor. AREA CODE PHONE NUMBER And, since the platter is actually a part of the motor Circle 122 on Reader Service Card SEPTEMBER, 1975-BM/E 35 Another turntable with direct drive that has done well MATCH TURNTABLES in a number of broadcast stations is the Sony TTS-3000. That makes highly interesting the announcement by Sony, at the NAB show in Las Vegas, that a new direct - drive Sony table, with fantastically good speed stability claimed, is just going on sale in Japan. It will reach this country in the near future-Sony will not yet say when. Also adding impetus to the swing to the direct -drive table are models from Sansui Electronics Corporation. Originally concentrating on the hi-fi market for turntables, Sansui is now actively marketing the machines to broadcasters as well. The firm has announced a new model, due soon, the SR -525, with a claimed flutter figure of 0.03%. Price will be about $280.00. U.S. Pioneer Electronics Corporation is another firm with a turntable on the way aimed at "hi-fi" performance for broadcasters. It uses a novel motor based

...... on Hall Effect elements, which form a brushless dc servo -controlled drive. Price will be in the $250-$300 range. So broadcasters with a need for this kind of turntable are rapidly getting a wider choice.

It's not for everybody But the direct -drive turntable is not for everybody. For Sony has announced a new direct -drive table, the PS -8750, example, the Top -40 station that is running a flock of on sale in Japan for about $580, to come here soon. 3 -minute tunes every hour in a tightly knit pattern ofDJ Crystal -controlled drive gives claimed speed accuracy of patter and commercials must have a table that starts on 99.997%. the instant, with plenty of torque right at the beginning. With so many starts in the course of a day, a rugged, simple mechanical construction becomes highly desirable. Highly admired in a large number of stations (with a wide variety of formats) for ruggedness, quick starts, long-termreliabilityarethese ."standards":Harris (Gates QRK, RCA Russco. * As one engineer said about his Gates CB500, "two drops of oil a year is all I've ever done for it;" and the same sort of evaluation turned up in BM/E's survey for the others, too. At a guess, there are several hundred tables of this kind out there for everyone of the new direct -drive tables. Over one grand-the super -machine The third class of turntable is currently represented Current top -of -the -line Sony direct -drive table, PS2251, mainly by one brand-the imported EMT (from Gotham claims flutter of 0.04%, has price of about $430.00. Audio in New York). It's price of around $1500 implies extreme mechanical sophistication, and that is what a number of broadcasters want. Very long term reliability is acknowleged, and a number of users particularly like the cueing method, with a standard cue lead laid out and a muting relay that "waits" for the cue lead to pass. (See box for further description.) One engineer likened his EMT's to high performance sports cars that need occasional expert tune-ups for their top performance-which is "top" indeed. Another, in contrast to all the others, did not like the reaction of the table to the cueing methods used in his station. Although no careful analysis of this complaint was possible, it does suggest that the prospective pur- chaser of a turntable try out on it the cueing procedures used in his station, or imposed by his format. Evidently these vary considerable from station to station-or even, as BM/E was told about one station, among different on -air men and engineers. BM/E

*Other brands with wide acceptance include Microtrak, Sparta, LPB; most Sansui Electronics has announced a new direct -drive table, of these have generally been made, under a "private label" arrangement, by SR -525, above, with controlled dc motor. Price, about $280. Russco or QRK.

36 SEPTEMBER, 1975-BM/E Fernsehmeanstelevision. In one country literally. camera of universal application to a no - But Fernseh also means television compromise, 15 -pound, battery operated, throughout Europe, Asia, Africa, South handheld camera head. America, Australia...and in America. Now Together, they're what television's all about. more than ever. And why Fernseh means television. In Chicago, Houston, Los Angeles. And Everywhere. Saddle Brook, New Jersey, our new and We'd welcome the opportunity to expanded national headquarters. Not only are demonstrate the superior capabilities of we the largest company devoted exclusively Fernseh television equipment. A call to your to manufacturing television equipment, but nearest office will bring any further information we've got the facilities to service it. you require. All over the world. And now all over America. Saddle Brook, Headquarters (201)797-7400 The four cameras represent our complete Chicago (312) 681-5000 Houston family of broadcast quality live systems. (713) 688-9171 Los Angeles (213)649-4330 They range from the ultimate studio/field

FERNSEHRobert Bosch Corporation Circle 123 on Reader Service Card 563 SEPTEMBER, 1975-BM/E 37 verified guide of broadcast The industry'sSource. only The equipmentOREPS AND DISTRIBUTORS BY STATE manufacturers CICANSTANTOPHONEEIPRODUCTGMANUFACTURER'S VERIFIED NUMBERS SOURCE INFORMATION LINES HANDLED LOCATOR FIELD OFFICES \s1 47:1I=MC=P\1 J Instant Source Locator pages 39-46 Broadcast Equipment Manufacturers pages49-87 Independent Broadcast Reps/Distributors pages88-122 Instant Source Locator

1. Audio 4.Film 7. Antennas 2. Components/Hardware/Systems 5.Lighting/Set Design 8. Measuring/Monitoring 3. Video 6.RF/Transmitters 9. Cable TV

Automation Aitken 1 Ampro2*Audio Services1,8* AUDIO EQUIPMENT Equipment Autogram8"B&K6*BE2*Control Design 1. controllers 1-8*Fairchild6*Harris1-8*IGM1,2,4-8* 2.multi -cart ITC 2-3*LPB1,2,4McCurdy3,5*Neff6 machines Otari3*Quad Eight 1* RCA1-4,7,8*Revox 3.reel decks 3,5*Rowe 3* Sparta1-3,5-8*SMC1,2,4-8* Audio Amplifiers Altec5,6,7*American Data1,2,3,5*Audio 4.read-out/display Schafer 1-8' Scully/Metro3,5*Tapethon 1. distribution Designs1-3*Audio techniques5-7*Auto- 5.loggers 1,3,7*Telex3*VIF1,3* 2.line mated Proc.1-6*Autogram2,3,5,6*Be- 6.tone generator 3.pre -amps thany 1* BE1,3,5*Burwen3*Collins 7.time/weather 4.op -amp modules 2,3,5*Cooke 1* Cetec 1* Channelmatic 1* announcers 5.monitor amps Crown3,5,6*Dunlap -Clarke6*Dyma 1 8.complete systems 6.power amps Dynair3,5*Datatek 1* Elec. Sound3,6* 7.public address Fairchild1-7*Gotham4*Harris2,3,5,6* Consoles Ampro 1,2* Audio Designs1-4*Audio Heath6,7*Int. Nuclear1,2,3,5*Johnson 1. mono Techniques2,4*Auto. Proc.1-4*Audit- 1,2* 1,4*BE 8.audio power 1-3,5-7*LPB1,3*Marconi1-3,5*Modular 2.stereo ronics1-4*Autogram Altec supplies Audio 1-8* McMartin5-7*McCurdy1-3,5-7* 3. TV 1,2*Collins1,2,3*Cetec1-4*Crossroads 1,2 1-4* Microtrak3*Marti2,5*NEC1-3,5,6*Neve 4. portable 1,4*Dipol1-3*Dyma Fairchild 1,2*Neff1,2,5,6Opamp Labs1-6*Orange Gotham2,4*Harris1-4*KMS 1* LPB1,2,4* Co.5PacificRecorders 1-3,5* Pulse Magna Sync/Moviola1-2Marconi 1,3* Dynamics2,7*Philips Audio1-3,5-7*ORK McMartin 1-4* McCurdy 1-4* Microtrak 3-5*Quad Eight2,3,5,6*ROH1-3,6,8* 1,2,4*NEC3,4*Neve1-4*Opamp Labs Ramko1-3,5*RCA1-3,5,6*Revox6,7* 1-4*Pacific Recorders1-3*QRK1,2,4* Russco 3,5,6*Spectra Sonics 1-3,5-7* Quad Eight1-4*Ramko 1,2* RCA1-4* Sphere2,3,6Shintron 1* Sescom2,3,5* Revox2,4*Russco1,2*Spectra Sonics Sontec2-4*Shure2,3,6,7*Sony2,3,6* 1-3*Sphere 1,2Shure 1* Sparta1-4* Sparta2,3,5*SMC1,2,5*Sansui3,6,7" Studer2Systems Eng1,2Ultra Audio1-4* Sequerra3,6*Stanton3*Tektronix2-5* UREA1,2*Ward -Beck3*Wilkinson1,2* Telemation1,5*Telemet 1* Telex3,6,7* Thomson-CSF Labs 1* UREI2,3*Vamco 1* Headsets Audio-Technica*Audiotronics*Koss* Varian3,6*VIF2-4*Ward -Beck1,2,5* MI- Panasonic* Philips Audio* RCA* Revox* kinson1-3,5* Superscope* Sharp Sennheiser* Sony* Stanton* Sansui* Telephonics Telex* TEA* Audio Controls Audio Designs 1* Auto. Proc. 1* Cetec2,3* US Pioneer* 1. Attenuators/pots Crown2*Control Design 2 Fairchild1-3* 2.filters Gately 1* Gotham1-3*Hervic 1* McGraw - Intercom Systems Clear Com* Comrex* Dyma Heath* Mar- 3.mixers Edison 1" McMartin3*Microtrak3*NEC3* coni* McMartin* McCurdy* NEC* Philips Opamp Labs1-3*ORK3*Quad Eight 1-3* Audio* RCA* Telemation* Telex* TEA* ROH 1,3*RCA2,3*Revox3*Spectra Video Aids* Sonics1-3*Shintron3*Superscope3* Shure2,3*Sony3*Sparta3*TEAC3* Microphones Atlas 1 Audio Techniques7,8*Audiotronics Tech Labs 1* Telemation3*Texscan 1,2* 1. dynamic 1,6* Altec1,2,3* B&K2*Collins 1,6* UREI2*Waters 1* 2.condenser Comrex4*Edcor2,4,6* Electro Voice 3.electret 1,3,5,6*Gotham2,6*Group128 3*Hervic Audio Disc Cutting Gotham" 4.wireless 1,3,6*KMS3,6,9*NEC1,2*Panasonic Equipment 5.shotgun 1,3*Philips Audio (AKG)1-3,5-7* RCA 6.lavalier 1,6,7* Revox1,6,7,10* Sescom 1,3,6* Audio Processing Allison2Altec2,3*Audio Designs3* 7.booms & dollies Superscope1-3*Sennheiser1-6*Shure 3* Equipment Audio/Tek2*Audio Techniques Auto. 8.stands 1-3,6*Sony1-4,6,7*Sparta1-4,6,7*Studer 3* 1. ALC and AGC Proc.2,3*Auditronics3*BE2,5*Burwen 9.accessories 2* TEAC3*Telex 1* TEA1,4*Telev. Prod- amps CBS6*Collins2*Cetec2* MX 2*Even- 10.ribbon ucts 7*Transound6*Turner1,6U.S. 2.compressor/limiterstide1,2Fairchild1-3,7*Garron4*Gotham Pioneer3*Vega4* 3.equalizers 1-3*Harris1,2,5*Inovonix1,2*Lexicon5* 2* 3*Modular Audio1-3* 4.stereo phase LPB Marconi Music Synthesizers Arp Ionic Electrocomp Moog enhancer McMartin2*McCurdy1-3*Marti2*NEC 1-3*Neff1,2Orange Co.2Orban2,3* 5.speed Noise Reduction Burwen* DBX* Dolby* Quad Eight* Opamp Labs1-3,5*Pacific Recorders2,5* compressor/expander Systems 6.quad matrix Quad Eight2,3*ROH2*RCA1-3*Spec- equipment traSonics2,3*Sphere3Sescom3*Sontec 7.noise -controlled 2,3*Shure1-3*Sony6*Sparta3*SMC 1* *The asterisk denotes that manufacturers so identified have verified that the auto vol. control Sansui6*Systems Eng3Thomson-CSF products mentioned are in regular production. Current data on these prod- Labs1-3*UREI2,3*Wilkinson 1* ucts are on file with BM/E.

39 SEPTEMBER. 1975-BM/E Total Automation. Period. You can't run traffic, accounting, and operations with just the flick of a switch. Not quite. But the new BCS 1100 total automation systemcomes closer than you'd have guessed. It's the biggest step forward in total broadcast computerization in five years. Why settle for on-line when you can have total automation? Find out why the switch is on to the new BCS 1100. Don't start bcsCall Jack Finlayson today (303) 599-1601 another day without us. a Kaman broadcast computing service /3(KAMAN SCIENCES CORPORATION A KAMAN COMPANY PO BOX 7463 COLORADO SPRINGS. COLORADO 80933 Circle 124 on Reader Service Card SOURCE LOCATOR

Patch Panels Audio Accessories' Audio Designs* Audit- Turntables, Astatic 3 Audio-Technica 2-5* Elpa 1,2* ronics* Cooke* Dyma Harris* McCurdy* Accessories Gotham 1-3* Hervic 1,3* Harris 1,2,3,5* NEC* Potomac* Quad Eight* RCA* Spectra 1. turntables LPB 1,2* McCurdy 1-5*Microtrak1,2* Sonics* Trompeter* Ward -Beck* 2. arms Panasonic 1,3,4* Philips Audio 1-5* QRK 3. cartridge stereo 1-3,5* RCA 1-3,5* Russco 1* Shure 2,3,5* Reverb Units Fairchild*Gotham* Horizon*Micmix* 4. cartridge quad Sony 1,3,4* Stanton 1-5* Sparta 1-3,5* McCurdy" Opamp Labs* Orban* Philips 5.stylii Sansui 1* US Pioneer 1,4* Audio (AKG)* Quad Eight* Shure* Sansui Speakers AcousticRes.AdventAltec*Audio Special Effects Audio/Video Prod. 2* Eventide 1,3* Fair- Techniques* Cetec* Crown* Electro Voice* 1. phasers child 2* Orban 4* Gotham* Heath* Orange Co. Philips Audio* 2. tone synthesizers QRK RCA* Russco* Superscope* Sparta* 3. delay lines H.H. Scott* U.S. Pioneer* 4. stereo synthesizer Synchronizing Auto. Proc.1,2* Central Dynamics 1,2* Tape, Audio Advent 2 Ampro 4 Agfa-Gevaert 1,3,4* Equipment EECO 1,2*Magnatech 2* Magnasync/ 1. reels Ampex 1-4* Aristocart 2 BASF 1-3 Capitol 1. time code gen Moviola 1* 2. cartridge Magnetics 1-3* Fidelipac 1,2,4* Fuji 1-3* 2. tape machine 3. cassettes Harris 2,4* Maze!! 1-3 Memorex 1-3* 3M synchronizer 4. test tape 1-3* McCurdy 1,2,4* Nortronics 4* Pent- 5. tape cleaning & agon 3 Philips 4* QRK 2* RCA 1-4* Recor- VU Meters Audio Designs 1Harris 1* McGraw -Edison evaluating tec 3* Revox 4* Studio Tape Exchange 1,5* 1. Analog 1* Marconi 1* Neff 1 Pulse Dynamics 3* Quad Superscope 1-3* Sharp 3 Sony 1-3* Stand- 2. digital Eight 1,2* RCA 1* Simpson 1* Sontec 1,2* ard Tape 4* Sansui 3* Taber 4* TDK 1-4* 3. LED Sintronic 1 Triplett 1,2* Telex 2* Wabash 1 Other Audio Audio Designs 1* Audio Services 1* Audio Tape Accessories Ampro 6* Audio/Tek 4* BE 6* Capitol Mag- Accessories Techniques 3*Auto.Proc.1*Audio- 1. empty reels netics 1,5 Crown 1,5* Elec. Sound 4,7* 1. custom switchers Technica Comm. Tech 1* Dynair 1* ITT 2. tension gauge Fidelipac 5* Fairchild 5* Gotham 8*fin- 2. connectors Canon 2* let. Nuclear 1* IGM 1* Kings 2* 3. tension control ovonix 3* Memorex 1* 3M 1,2* Neff 4,6 Nor- 3. record cleaners Marconi 1* McCurdy 1* SMC 1* Ultra Audio 4. loader tronics 5* Nova 9* Plastic Reel 1* Polyline 1 1* Viscount 1* 5. splicers RCA 6* Superscope 1* Senstrol 6* Sony 1,5* 6. splice finders Studer 1* TDK 1* Tentel 2,10* US Pioneer Studio Furniture Dyma LPB* Microtrak* McCurdy* 7. splicers, 1* Vamco 8* VIF 2* Assemblies automatic 8. tape timer 9. tape cleaner 10. tape evaluators COMPONENTS/ Tape Heads Ampro 2 Crown 1* Elec. Sound 1* Fidelipac HARDWARE/SYSTEMS 1. replacement 2* FerraFlux 1 Forglo 1 Hervic 1* Minn. Magnetics 1* Nortronics 1* Superscope I* heads CalvertEiecGlobeBattery*Gould 2. alignment gauge Saki Magnetics 1* Sony 1* Sparta 1,2* SMC Batteries 2* Scully/Metro 1* Taber 1* VIF 1* Vikron 1 Yardney*

Tape Head Cleaners Crown*Fidelipac*Fairchild*Memorex* Cabinets, AMCO* Borg Ingersoll Dracon Dyma Fari- 3M*Miller -Stephenson*Minn.Magnetics* enclosures, shipping non Fidelipac* Modular Audio* Microtrak* Nortronics* RegmoData* Revox* Sony* cases Neumade* Optima* RCA* Shintron* Shure* SMC* Texwipe* TDK* VIF* Schafer* Storeel* Thermodyne* Cable Data 2 Compu-Net 1 Cox Data 1-2* Tape Editing Cent. Dynamics* Elec. Sound* Elpa* Computer Business Data Comm (BIAS) 1 Downe Computer 2 Equipment EECO* Kaitronics* Nortronics* Revox* Services 1. Broadcasting Jefferson Data 1 Kaman (BCS) 1* PSI 1* Uni- Tape Recorders Advent 3 Akai 1-3 Audio/Tex 2* Audiot- 2. Cable TV dyne 1 U.S. Computer 2 1. portable ronics 1,3* Ampex 1,2* B&K 1* BE 4* Alford Andrews AMP BIW* ITT Canon* Kings* 2. studio Crown 1-3* Elec. Sound 1-3* Elpa 1-3* Connectors 3. tape decks Echo 1,2* Gotham 2* Hervic 1* Harris 1-3* Also see Cable TV SRW Trompter* 4. tape delay units ITC 2-4* Magna -Tech2*Magnasync/ Connectors Moviola 2* McCurdy 1-4* MCI 2,3 3M 2,3* Otari 1-3* Pentagon 2,3 QRK 3* RCA 1,2* Delay Lines WMA Andersen* ESC McGraw -Edison* TEA' Revox 2,3,4* L.J. Scully 2,3 Superscope (Matthey) 1-3* Sony 1,3* Sparta 2,3* Studer 1,2* Schafer 2,3* Scully/Metro 2,3* Tapeathon 3* Emergency Power Consolidated Caterpillar Onan Sawyer TEAC 2,3* Telex 3* U.S. Pioneer 3* Mobile Vans AF Associates* Ampex Editel* RCA Tape Cartridge Ampro 1* BE 1,3* Garron 1-3* Harris 1-3* Equipment ITC 1,3* LPB 1,2* McCurdy 1-3" ORK 1-3* Power Tubes Calvert Elec* EIMAC* Eng Elec* Gen'l Elec- 1. single RCA 1-3* Rowe 1* Sparta 1-3* SMC 1,2* tric* RCA* Thomson-CSF* Varian* 2. dual Telex 1" Tapecaster 1 3. triple Rectifiers Calvert Elec* Eng Elec* IRC RCA Varian* Wilkinson* Tape Duplicators Audio/Tek* Ampex* Cetec* Elec. Sound* Gamer* Otari* Pentagon Telex* Visual Surge Protectors MSI Sintronic* ThetaCom* Educom Wire & Cable BIW* Brand -Rex Calvert Elec* Cablewave* Tape Erasers Fidelipac* Fairchild* Garner* Harris* ITC* Gen'l Cable* ITT Suprenant Mohawk Phila Nortronics* RCA* Senstrol Sony* Sparta* Resins* Preformed* Plastold Sitco* Taber* RF Inductors Delta Multronics Tape Storage Racks BE* Dyma Fidelipac* Harris* Memorex* Microtrak* Neumade* Sparta*Storeel* Transformers Modular Audio* Gotham Simpac* Torque Motors UMC RFI Gasket Chromerics Quartz Crystals Quaker US *Theasterisk denotes that manufacturers so identified have verified that the products mentioned are in regular production. Current data on these prod- Vacuum Capacitor ITT Jennings* ucts are on file with BM/E. Tools Xcelite

SEPTEMBER.1975-BM/E 41 SOURCE LOCATOR

*The asterisk denotes that manufacturers so identified have verified that VIDEO EQUIPMENT the products mentioned are in regular production. Current data on these products are on file with BM/E.

Cameras, TV, Color Ampex 1* Cohu 2,3* CEI 2* Fernseh 1,2* Monitor Calibrator Barco* Imero Fiorentino* Minolta Philips Studio GBC 3 Harris 1-3* Hitachi 2,3* IVC 1-3* Inst.* TEA* Tektronix* 1. over $50,000 Ikegami 1,2* JVC 3* Marconi 1* Magnavox 2. $25-50,000 3* NEC 1,2* Panasonic 2,3* Philips Broad- Processing AmericanData*Blonder -T*Central 3. below $25,000 cast 1,2* Philips Video 3* RCA 1,2* Sharp 3 Amplifiers Dynamics* Dynasciences* Grass Valley* Sony 3* Sanyo 3* Thomson-CSF 1-3* Intl. Nuclear* Lenco* Marconi* 3M* NEC* RCA* Richmond* Tektronix* TeleMation" Cameras, TV Akai* Ampex* CEI* Concord Comm. Editel* Telemet* Thomson-CSF* Vital Portable Color Fernseh* Gent Electric*Hitachi*IVC* Ikegami* JVC* Marconi* Magnavox* NEC* Pulse & Distribution American Data 1-3* Blonder -T 2 Cooke 1,2* Panasonic* Philips Video* RCA* Sony* Amplifiers Cohu1,2*Channelmatic1,2*Central Thomson-CSF* 1. pulse Dynamics 1-3* Dynair 1-3* Datatek 1-3* 2. distribution Dynasciences 1-3* Echo 1,2* Farinon 2,3* Cameras, TV Mono Akai* Ampex* Asaca Benjamin Cohu* Co- 3. subcarrier Fairchild 2* Grass Valley 1-3* Harris 1,2* loradoVideo*Echo* Gen'lElectro- Hitachi 2* Int. Nuclear 1-3* Javelin 2* Kait- dynamics* Gent Electric* Hitachi* Javelin ronics 2* Lenco 1-3* Marco Video 1,2* Mar- JVC* KoyoLenco*Marconi*NEC* coni1-3* 3M 1-3* NEC 1-3"Neff2 Panasonic* Philips Video* QSI* Sony* Panasonic 1,2* RCA 1-3* Richmond 1-3* Sanyo* Telemation* Vicon Visual Educom Shintron 1,2* Tektronix 1* TeleMation 1-3* Telemet 1,2* Thomson-CSF 1,2 Thalner Camera Lenses and Angenieux* Asaca B&L Canon* Comquip* 1-3* Vamco 2 Varian 1* Viscount 2* Vital accessories Cosmicar* Fujinon* GeneralElectric* 1,2 Hitachi* Javelin* JVC* Magnavox* NEC* Panasonic* Rank RCA* Schneider Sony* Production Switcher American Data 1,2* Central Dynamics 1,2* Tele-Cine* Visual Educom Visual Methods 1. large Cohu 2* Computer Image 1,2* Dynair 2* Zoomar 2. small Dynasciences 2* Grass Valley 1,2* Int. Nu- clear 1,2* Marconi 1,2* 3M 2* NEC 1,2* Camera Heads, Harris*Hitachi*Innovative TV* Listec* Panasonic 1,2* Philips Video 2* QSI 2* Mounts, Doilies, etc. NEC* Panasonic* Quickset* RCA* Sharp RCA 1,2* Richmond 1,2* Shintron 1,2* Sony* Telev. Products* Sony 2* Telemet 1,2* Ultra Audio 2* Video Concepts 2* Viscount 1,2* Vital 1,2 Remote Control Cunningham Innovative TV* NEC* Power - Mounts optics* RCA* Sony* Routing Switchers American Data* Central Dynamics* Chan- Comm. Tech* Character Gans. American Data 1* Ann Arbor T. 1,2* Cooke Datatek* Dynair* Dynasciences* Grass Val- 1. alpha -numeric gen 1* Chiron 1,2* Conrac 1* Datatron 1 Datavi- ley* Int. Nuclear* Marco Video* Marconi* 2. graphics generator sion 1,2* EECO 1* GBC 1 Javelin 1* Kait- 3M* NEC* Panasonic* RCA* Richmond* ronics 1* KSN 1* Laird 1* Lexicon 1 3M 1,2* TeleMation" Telemet* Trompeter*Vis- Moxon 1 MSI 1* NEC 1,2* RCA 1,2* Tele- count* Vital mation 1* Thalner 1* Thomson-CSF 1,2* Ultra Audio 1,2* Vamco 1* Video Data 1* Signal Equalizing Control Concepts* Datatek* Dynair* Grass System Valley*Int.Nuclear* Lenco* Marconi* NEC* Richmond* Chrome Keyers Amer. Data 1* Astrionics 2 Computer Image 1. RGB 1* Central Dynamics 1,2* Dynair 1,2* Grass 2. encoded Sync Generator American Data 1-5*BJASystems 1* Cen- Valley 1,2* Int. Nuclear 2* Panasonic 1* System 3. luminance RCA 1* Richmond 1* Sonex 1,3* Telemet tral Dynamics 6* Cohu 1* Cooke 1* Control 1. sync Concepts 1,3* Dynair 1* Dynasciences 1-5* 1,2* Thomson-CSF 1,2* Viscount 1* Vital* 2. color bar 1,2 Echo 1* Grass Valley 1,3* Heath 2* Hitachi 3. black burst 1* Int. Nuclear 3* JVC 1-2* Lenco 1-5" Laird Color Correctors 4. stairstep/ramp 1*Marconi1-5* 3M 1,2* NEC 1-3* Cohu* Datatek* Fernseh* NEC* TEA* 5. multiburst Thomson-CSF* Panasonic 1,2* Philips Inst 1-5* RCA 1-3* 6. digital sync Richmond 1,3-5* Shintron 1* Simpson 2* decoder Color Encoders Amtron Cohu* CEI* Lenco* Marconi* 3M* Sharp 1,2 Sony 1* Tektronix 1-5* TeleMa- NEC* RCA* Telemation* Thomson-CSF* tion 1-5* Thomson-CSF 1-5* Thalner 1* 'Itra Audio 1-2* Video Aids 1* Video Con- Dropout Echo* 3M* NEC* RCA* cepts 1* Compensators Special Effects American Data* BJA Systems*Central Generators Film Telecine Avtel 3 B&L 1,2 Buhl 2,3* Cohu 3,4* Kodak Dynamics* Colorado Video* Dynair* Equipment 1-3* Fernseh 4* GBC 3 Harris 1-3* IVC 4* Dynasciences* Grass Valley" Hitachi* Int. 1. 16mm projectors Ikegami 4* Kalart 1* L -W Intl 1* Laird 1-3* Nuclear* Marconi* 3M* NEC* Panasonic* 2. slide projectors Listec 2* Marconi 1-4* MSI 3 NEC 1,3* RCA* Richmond* Shintron* Sony* Telema- 3. multiplexer tion* Telemet* Thalner* Video Concepts* Panasonic 3* Philips Broadcast 4* RCA Viscount* Vital 4. complete systems 1-3,4* Singer 3 Spindler & Sauppe 2* Tele- Mation 3,4* Thomson-CSF 1,2* Zeimark 3* Switchers, Central Dynamics* Dynasciences* Grass Automated Film to Video Kodak* Goldmark Ikegami* Panasonic* Valley* Int. Nuclear* Marconi* NEC* QSI* Transfer RCA* Richmond* Vital Standards Image Enhancers Cohu* CEI Dynasciences* 3M* NEC* Converters Fernseh* Int. Nuclear* Marconi* Telemet* Thomson-CSF* Time Base Ampex* CVS* Digital Video Echo IVC* Monitors, picture Amtron 2* AKAI 1* Ball 1-2* Barco 1,2* BE Correctors Edutron Microtime* NEC* Kansas State 1. b&w 1* Conrac 1,2* Electrohome 1,2* Fernseh RCA* 2. color 1-2* Harris 1,2* Hitachi 1,2* Javelin 1* JVC* Sanyo* Magnavox 1,2* Moxon 1,2 Videotape Ampex 1* Fuji 1* Hitachi 1* Irish 1 Javelin 1 NEC 1,2* Panasonic 1,2* RCA 1,2* SC 1. new tape Karex 1* Memorex 1* 3M 1* NEC 1* Electronics 1,2* Sharp 2 Tektronix1,2* 2. tape cleaning & Panasonic 1* RCA 1* Studio Tape Ex- Ultra Audio 1* Unimedia 1,2* Video Aids evaluating change 1,2* Sony 1* TDK 1* Video tape Co. 1,2* Videotek 2* World Video 2* 3. reprocessed tape 1-3*

42 SEPTEMBER, 1975-BM/E Videotape Acess. FerraFlux 3 Hitachi 2,3* IVC 3* Memorex FILM EQUIPMENT 1. tape cleaners 1,2* Miller -Stephenson 2* NEC 1-3* Nor- 2. VTR head tronics 2,3* Nova 1* Panasonic 2* Plastic cleaners Reel 4* RCA 3* Recortec 1, 3, 5* Regmo 3. replacement Data 1,2* Sony 1-3* Storeel 6* Spin Physics Cameras, Cine Arriflex Bach Auricon Canon* Cinema Pro- heads 3* Taber 3* TEA 1,5* Tentel 7* Texwipe 2* ducts* Comm. Elec Comquip* Eclair Frezzo- 4. reels Ultra Audio 1,8* Videomax 3* Videotape Co. lini* GAF* Genl Camera* Alan Gordon* 5. tape evaluators 1* Hervic* Kodak* Paillard 6. storage 7. tape tension Camera Lenses Angenieux* BL Canon* Cinema Products* gauge Comquip* Cosmicar*EclairFrezzolini 8. rewinder GAF* Alan Gordon* Hervic* Videotape Akai 2* Ampex 1,2,4* Asaca 1Echo 3* Fernseh 3* Hitachi 2* IVC 2-4* Javelin 2* Camera Tripods & Birns & Sawyer* Cinema Products* Corn - Recorder/Players quip* Eclair GAF* Alan Gordon* Hervic* In- JVC 2* Nat'l Video 2* NEC 1,2* Panasonic Accessories 1. quad novative TV' RCA* 2. helical 2* QSI 2,4* RCA 1,2* Recortex 4* Sony 2* Summit 4 Sanyo 2* 3. segmented -helical Carrying Cases Cinema Products* Comquip* Eclair Frezzo- 4. automated lini* GAF* Gen] Camera Alan Gordon* systems Kodak* Olean* A.F. Assoc.* Ampex Computer Magnetics* VTR Head and Film Comquip* Fuji* GAF* Kodak* Machine Rebuilding Merlin* Recortec* RCA Videomax* Film Cases Olean* Video Avtel 3* Channelmatic 3* Concord Comm. 1,2 Elec. Interface 3* Goldmark 4* Hitachi Cartridge/Cassette Film Cleaners Comquip* Kodak* Lipsner-Smith Regmo Equip. 1,2* JVC 1,2*Kodak 5* NEC 1,2* Data Treise* 1. players Panasonic 1,2* Philips Video 1,2* RCA 2. recorders 1,2,4,5* Recortec 1-3* Replay 6* Sony 1,2* Summit 1,2 Sanyo 1,2* Telemation 1,2* Film Editing Birns & Sawyer* Comquip* Alan Gordon* 3. automation Equipment Herm* Kalart* Kodak* Lipsner-Smith Mag- controllers Telemedia 3* nasync/Moviola* 4. complete auto. systems Film Processors Comquip* Kodak* Filmline GAF* Harwald 5.film cart systems HF Photo Systems* Jamieson* Magnatech 6. reloaded carts Pako Treise* Videotape Editing Beta Tech 1-3* CMX 1-2* Computer Image 1. editor -controller 1* Central Dynamics 1-5* Datatron1,2,5 2. time code gens Datametrics 2,3,5* Dynasciences 1* Elpa 3. tape timer 4* EECO 1,2,4* Fernseh 1-3* Kaitronics 4. splicers 1-3* Moxon 2* National Video 1* Panasonic LIGHTING/STUDIO 5. time code reader 1,4* RCA 1-3,5* Recortec 1-3* Shintron 2* EQUIPMENT/SET DESIGN 6. accessories Sony 1,3,4* Sonex 6* Spectra Vision 1 TRI 1-2* Vamco 3* Video Aids 1* Video Con- cepts 1,3* Lamps Berkey* Cirema Products* GTE Sylvania* Video to Film Palmer Film* Teledyne* Gent Electric* Meteor Lighting* Strand Cen- Transfer tury* Varian* Video Identification Ampex* Central Dynamics* Grass Valley* Lighting Fixtures Bardwell-McCallister Berkey* Burns & Systems Laird* 3M* NEC* Shintron* Telemation* Incl. Stands & Sawyer* Cinema Products* Comquip* Alan Hangers Gordon*Kliegl*Lowel-Light* Mole - Video Discs Ampex* Data Disc Echo* JVC* NEC* Richardson' Packaged Lighting Skirpan* Sm ith-Victor* Video Production Beta Technology 1* Colorado Video 1* Aids Computer Image 2* Comquip 2* Dynasci- Light Dimmer Audio Techniques* Berkey* Elec.Diver- 1. colorizers ences 1* Grass Valley 1* Imero Fiorentino Controls sified Kliegel* Meteor Lighting* Skirpan* 2. animation 4* Int. Nuclear 1* Laird 1,3* 3M 1* Telema- Strand Century* 3. time/date tion 1" generator Patch Terminals Berkey*Elec.DiversifiedKliegl*Strand 4. color contrast Century* evaluator Plugs & Connectors Union Connector* Video Equip., Misc. WMA Andersen 7* Audio/Video Prod.9* 1. automatic Audiotronics 8* Beston Elec. 1* Biomation Studio Equipment Imero Fiorentino 3* Front Projection 4 Q -TV telecine light 6* Burwen 2,5 Coastcom 3* CVS 10* Con- 1. scenery, prefab. 2* Reynolds/Leteron 2 Telestrator 4 control trol Concepts 5,7* D.&S. Corley 11 Dynair 2. prompters, titling 2. video film noise 5* Datatek 3,5* Dynasciences 7* Fernseh 3. set design reducers 1*Frezzolini12* Goldmark 13* Grass 4. superimpose aids 3. video filters Valley 5* Harris 1* Image Magnification 14* 4. comb decoders Int. Nuclear 5* Kalart 14* Laird 1* Lenco 8* Film Projectors Comquip 1,2* GAF 1,2* Alan Gordon 1* Hol- 5. equalizers Magnatech 15* Marconi 8* NEC 4-7* Pro- 1. motion picture logon 3 Kalart* Kodak 1,2* L -W Intl 1* Mag- 6. A/D converters jection Systems 14* Richmond 5,7,8* Tech 2. slide natech 1* Palmer Film 1* PSC 3* RCA* 7. video delays Labs 16* Telecomm. Ind. 17* Telemation 3. flickerless 8. video presence 10* TEA 3,7* Viscount 8* detector Magnetic Film 3M 1* Standard Tape 2* Capitol Magnetics 9. video 1. Recording 1* slater/prompter 2. test 10. frame sync. 11. test materials Magnetic Recording Cinema Products* Comquip* Echo FerraF- 12. power packs, Equipment & lux Frezzolini* Genl Camera* Hervic* Mag- portable video Accessories nasync/Moviola* Magnatech* camera 13. auto skew Misc. Film CPAC 1* Kodak 1,2* Heindl 2 HF Photo corrector 1. pollution control, Systems 1* Magnatech 3* Profit Recovery 1 14. large screen silver recovery projectors 2. slide masks & 15. video lock to mounts mag. film record 3. multi -lock, video 16. video attennators and magnetic film 17. video test charts & slides Optical printer PSC*

43 SEPTEMBER, 1975-BM/E Misc. RF Equipment AEL 6* Alden 5 Belden 7* Bird 4,8,9* SOURCE LOCATOR 1. program Collins 1* Catel 1,10* Coastcom 1* Calvert subcarrier Elec. 1* Cont. Elec. 3* Datatek 12* Farinon 2. carrier current 1* GTE Lenkurt 1* Harris 1,3* ITT Canon 3. phasing network 13* Jerrold 4* Kay 4* Kings 13* LPB 2* 4. RF attenuators McGraw -Edison 4 Marconi 4* McMartin 1* RF/TRANSMITTING/ 5. facsimile Microwave Assoc. 1* Moseley 1* Multronics RECEIVING EQUIPMENT 6. TV combiners 3* Philips Inst. 14* Sparta 1-4* Telautograph 5 7. RF cables Telonic Altair 4* Varian 4* Wavetek 4 Wide - 8. RF filters band 8* 9. RF filter couplers Demodulators Belar* Catel* Comark* Conrac* Dynair* 10. FM processors Farinon* GTE Lenkurt* Harris* Jerrold* 11. tubes NEC* Philips Inst* RCA EIE* R&S* RHG* 12. trans. color Scientific-Atlanta* Telemet* Wilkinson* phase equalizer 13. connectors Diplexers Alford CCA* Collins* Comark* Cont Elec* 14. converters Dielectric* Harris* Marconi* NEC* RCA* R&S* Sparta* Tel Tech Varian* Wideband* Wilkinson* ANTENNAS/TOWERS/ Exciters AEL* CCA* Collins* Dynair* Harris* Mar- coni* McMartin* NEC* RCA* RHG* Sparta* TRANSMISSION LINES Sintronic* Varian* Wilkinson* Modulators Catel* Dynair* Fung GTE Lenkurt* Harris* Jerrold* NEC* Philips Inst* RCA CATV* Antennas, AM Allied Tower* Collins* Cont. Elec.* Harris* RHG* R&S* Scientific-Atlanta*Sparta* Jampro* Marconi* Micro Communications Telemet* Tocom* Varian* Multronics* NEC* RCA* Stainless Utility Tower* Microwave Alford 1,2 Andrew 1,2 Collins 1,2* Comm Equipment Carrier 1,2 Comark 4* Comrex 1* Dielectric Antennas, FM AlfordBlonder -T* CCA Collins*Harris* 1. STL & Remote 5,6* Emcee 1,2 Farinon 1-3* GTE Lenkurt Jampro* Marconi* Micro Communications Pickups 1,2,4* Hitachi 1,2 Innovative TV -7 Moseley Multronics* NEC* Phelps -Dodge* RCA* 2. Intercity 1,2* McMartin 1* Microwave Assoc 1-4* Scala* Shiveley Sitco* Sparta* Utility To- 3. Portable Marti 1,2* NEC 1-4 Nurad 4* Raytheon 1,2 wer* 4. ENG RCA 1,4* RF Systems 1,2 RHG 1-4* Sparta 5. Waveguide 1* Soladyne 1,2 Terracom 1-4* Thomson- Antennas, Alford Andrew Corp.* Ant.for Comm.* 6. Coaxial Cable CSF 1-3* Varian 1,2* Wilkinson 1* Microwave Bogner Cablewave* NEC* Nurad* Prode- 7. Supports, portable lin* RCA* Scientific-Atlanta* Utility Tower* equipment Antennas, TV Alford Andrew* Blonder -T* Bogner Harris* Remote Control Alpha* Audio Services* CCA Delta* GTE Jampro* Jerrold* Marconi* Micro Commu- Systems LenkurtHarris*Marti*Moseley* NEC* nications NEC* Nurad* RCA* Scala* RCA* Rust Sparta* Shiveley Sitco* Utility Tower* Receivers, Comm & Belar* Catel* Conrac* Fixtune* Heath* Towers Allied Tower* Andrew* Fort Worth Grasis Monitor McMartin* NEC* RHG* HH Scott* Sequer- Jampro* Jerrold* NEC* RCA* Rohn Sitco* ra* TFT* Unimedia* Varian* Sparta* Stainless Utility Tower* RF Amplifiers Acrodyne* AEL* Belar* CATV* Comark* Tower Hardware & Air Space* Allied Tower* Andrew* Cont. Cont. Elec.* Harris Jerrold* Johnson* Kay* Construction Equip. Elec.* Jampro* NEC* Phila. Resins* Pre- McMartin* Microwave Power* Moseley* formed* Rohn Sitco* Sparta* Stainless Util- Mu -Del* Marti* NEC* Rodelco RCA RHG* ity Tower* Sparta* Tel Tech* Tocom* Trompeter* Varian* Wideband* Wilkinson* Tower Lighting Andrew Dielectric* Flash Tech* Hughey Phillips ILC Jampro* Rohn Sparta* Stain- RF Loads Alford Bird Cont. Elec.* Dielectric* Elec Im- less Utility Tower* pulse Marconi* RCA* Rex Rheostat* R&S* Sparta* Varian* Wideband* Transmission Line & Alford Andrew Corp* Cont. Elec.* Cab- Connectors lewave* Dielectric* Harris* Jampro* Jer- RF Switchers Alford Bird* Collins* Comark* Cont. Elec* rold*Multronics* NEC* Phelps -Dodge* Dielectric*Dynair*Farinon*Harris* Prodelin* RCA* Scientific-Atlanta*Sitco* ITTJennings* Jerrold* Marconi* Multronics* Sparta* SWC Trompeter* RCA* Sparta* Wideband* Satellite Earth Collins 1,2* Marconi 1,2* Scientific-Atlanta Stations 1,2* NEC 1,2* Varian 1,2* 1. Transmitter MEASURING/MONITORING/ 2. Receiver TIMING/LOGGING SCA Equipment Belar* CCA Collins*Harris* Johnson* EQUIPMENT Moseley* McMartin* Marti* Norver* Per- madyne RCA Sparta* Antenna Monitors Translators Acrodyne 2* Emcee 2 Harris 1,2* Marconi Delta* Dyma Harris* Potomac* RCA* 1. FM 1,2* NEC 2 Rodelco 1,2* RF Systems 1 Sparta* 2. TV R&S 2* Sparta 1* Tel Tech 1,2* Varian 1,2* Clocks, Time Alpha 1* American Data 1-4* Audio Ser- Transmitters, AM AEL* CCA Collins* Cont. Elec.* CSI Harris* Systems vices 1-4* Autogram 1* Barco 1-4* Beta LPB* Marconi* McMartin* NEC* RCA* 1. digital clocks Tech. 1,3,4* Birns & Sawyer 1 Chronolog 1 Sparta* Sintronic* Varian* Wilkinson" 2. master clocks Collins 1* Cooke 1,5* Control Design 1* 3. slave clocks Datametrics1,2,3*Efratom 4Electro- Transmitters, FM AEL* CCA Collins* CSI Harris* LPB* Mar- 4. timers neering 4* ESE 1-4 EECO 1-3* Eventide 1 5. time distribution coni* McMartin* NEC* RCA* RHG* Sparta* Heath 1,4* IGM 1,4* Moxon 1-4* McCurdy Sintronic* Varian* Wilkinson* sys. 1,3,4* Nationwide 1 Pacific Recorders 1-4* Philips Inst. 4* Regmo Data 1,4* R&S 1* Transmitters, TV Acrodyne* CCA Emcee Harris* Marconi* SMC 1-3* Standard Elec. Time 1-4* Stancil NEC* RCA* Rodelco Thomson-CSF* Var- Hoffman 1 Scully/Metro 1* Sparta 1* Systron ian* Donner 1-4* Tapecaster 4 TFT 1-4" Tele- media 1,2,4* Tracor 4 United Systems 1,4* Vamco 1-4* VIF 4*

*The asterisk denotes that manufacturers so identified have verified that Chart Recorders Gotham* Heath* Philips Inst.* Simpson* the products mentioned are in regular production. Current data on these products are on file with BM/E. Demodulators CCA Comark* Dynair* Marconi* Philips Inst.* RCA* R&S* Scientific Atlanta*

44 SEPTEMBER, 1975-BM/E Collinsannouncesthe next generation of FM transmitters. The Generation 4 line.

C qr dr

4.,

They're here now. Nine new FM trans- 8313-2, the 221/2 -KW 831G -2B, and 21/2 -KW mitters from Collins. Named Generation 4T 831D-2, to the 10 -watt 831A-2. And five more because they're a full generation ahead of any- models :n between. And they're available right thing else on the market. And because every now at prices that are going to be a pleasant feature is the product of 4 decades of Collins surprise. With the same superior Collins quality broadcast experience. you we come to expect. Backed with the same At the heart of everything is Co' Him' ne-.v, unei,oelTed 24 -hour parts and field.service. field -proven Phase 4TM Exciter. The best FM Act now, while we're still able to hold our exciter available today at any --mice. :ust one part current pricing. Contact your local Collins of a system designed to meet the requIremems of BroidcEst salesman. Or Broadcast 111arketing, today's new generation of radiniaudiophileE... Coli:ns Radio Group, with discrete quad compatibil_tv and stringent Roctwell International, specifications on all the things teat count, lake Dallai, Texas 75207. 14Rockwell intermod distortion. Phone 214-690-5574 cr International Choices? Everything f:om the big 90 -KW 214-590L5219.

Circle 12E on Reeder Service Card SOURCE LOCATOR Wow & Flutter Meter Elpa* Gotham* dbx* DIFF Phase-Gain Datatek* Measurement

Field Intensity Ameco 3 B&K 3* Blonder -T 3* Delta 1,2* EBS Two Tone Audio Services* McMartin* Neff TFT* Meters System Fluke 1,2 Harris 1,2* Jerrold 3 McGraw- 1. AM Edison 1,2 Mid -State 3 Potomac 1-3* R&S 2. FM 1-3* Sadelco 3 Sparta 1,2* Singer 1-3* 3. TV Texscan 1,2* Frequency Monitors Ballantine* Belar* B&K* Collins* EIP ES CABLE TV EQUIPMENT and Counters Fluke*Harris*Heath H -P* Marconi* McMartin* McCurdy* Philips Inst.* R&S* Simpson* Singer* Sparta* Systron Donner* TFT* United Systems* Amplifiers AEL Comm 1-3* Anaconda 1-3 Ameco 1-3 1. trunk Amplifier Design 2 AVA Elec 2,3* C-Cor 1-3 Generators, Audio Ailtech B&K* Control Concepts* Dyma Elpa 2. distribution Coral 1-3 Delta Benco Cascade 1-3 Echo Gen'l Radio* Harris* Heath* H -P* Marconi* 3. line extenders (Arvin) 3 GTE Sylvania 1-3* Jerrold 1-3* Li- McCurdy* PhilipsInst* RCA* R&S* ndsay 1-3 Magnavox 1-3* Oak 1,2* RCA Shure* Singer* Sparta* Spectra Sonics* 1-3* ThetaCom 1-3* Scientific Atlanta 1-3 SMC* Systron Donner* Sound Tech* Tek- Tocom 1-3* tronix*Texscan* UnitedSystems* Wavetek* Antennas, Blonder -T* Cadco Cush Craft Jerrold* JFD Receiving Lindsay Nurad RF Systems Scala* Sitco* Generators, RF Boonton Elec.* Comark* Delta* Heath* Scientific Atlanta Weingard H -P* Kay* McGraw -Edison* Marconi* Potomac' Philips Inst.* Systron Donner* Cable Belden 2* CCS Comm Prod 1-2 Cerro 1,2* Sound Tech* Singer* Tektronix* Telonic Al- 1.distribution Comm/Scope 1,2* Essex 1-2 Gen'l Cable tair* Texscan* Wavetek* 2. drop 1-2* Plastoid 2 Phelps Dodge 2* Systems Wire 1-2* Times Wire 1-2 Generators, Video Barco 2* Lenco 1* Marconi 1* Philips Inst. 1 1. multiple output R&S 1* Video Aids 2* Video Concepts 2* Connectors AVA Elect* Amer Tech* AMP Blonder -T* 2. cross pulse only Cambridge Gamco Gilbert Eng* ITT Can- non* ITT Gremar Jerrold* Kings* Lindsay Impedance Bridges Alford B&K Boonton Elec.* Delta* Heath* LRC* Phelps Dodge* Pyramid*Sitco* H -P* Marconi* Potomac* R&S* Simpson* ThetaCom* Trompeter* Telonic Altair* Texscan* Converters AEL Comm 1,2* Blonder -T 1,2* Gamco Burst Phase Meters Colorado Video* 1. standard Hamlin Jerrold 1,2* Lindsay Magnavox 1,2 2. pay TV OAK 1,2* Summit 2 Tocom 1-2* Voltmeters, Ballantine 1-3* B&K 1-3* Boonton Elec. Multimeters, etc. 1-3' Burwen 3* dbx 3 Cetec 3 Dyma 3 Harris Distribution AEL Comm* Ameco Amer Tech* Anaconda 1. voltmeters 1* Hewlett 1-3* Philips Inst. 1-3* Quad 8 3 Accessories AVA Biddle Blonder -T B&K Cerro* C-Cor 2. multimeters Simpson 1-3* Systron Donner 2* TEA 3* Passive Comsonics D&S Corley Delta Dynascan 3. dB meters TelonicAltair3*Triplett1-3*United Echo Gamco GTE Sylvania Jerrold* Lindsay Systems 1-3* Weston 1-3 Magnavox RMS Theta Corn

Harmonic Distortion Beta Tech.' B&K* Control Concepts* Elpa* Head End Ameco AVA Elec.* Blonder -T*Catel* Meters Heath* H -P* Marconi* Sound Tech* Processors Dynair* Jerrold* Oak* Phasecom* RCA CATV* Scienfitic Atlantic Telemet* Theta Intermodulation B&K* Crown* Heath* McGraw -Edison* Com* Tocom* Tomco* Meters Marconi* Texscan* Information Avtel Ameco CADCO Channelmatic* Metro Phase Meters B&K* Control Concept* Delta* Gotham* Systems, News, etc. Data Laird* Kansas State Network Metro H -P* Potomac* RCA* Wavetek* Data MSI Phasecom* Summit Systematics System Concept Telemation* United Press* RF Watt Meters Bird* Boonton Elec.*Dielectric* H -P* Video Data* McGraw -Edison* R&S* Simpson* Microwave Alford Andrew Catel* Communication Car- Oscilloscopes Ballantine* H -P*PhilipsInst.* RCA* Equipment rier Farinon* Gen'l Electric* GTE Lenkurt* Simpson* Systron-Donner* Tektronix* Jerrold* Microwave Assoc* Nurad* RCA* Wavetek* Terracom* Texscan* ThetaCom* Varian* Loggers and Logger Non-duplicaticn Dynair* Fung Jerrold* Phasecom Control Design* Ferra Flux IGM* Moseley* Switchers Equipment Marconi* Scully/Metro Power Supplies AEL Comm* Blonder -T* Glentronic Globe Modulation Belar* B&K* CCA Harris* McGraw -Edison* Monitors Marconi* McMartin* RCA* R&S* Sparta* Gould GTE Sylvania* Lindsay MSI Oak* TFT* Wilkinson* Sitco* Sawyer* Sola Teledyne* ThetaCom* Tocom* Topaz Sideband Analyzers B&K*H-13* Marconi* R&S* Systron- Test Equipmeit AEL Comm* Ameco Avantek Biddle Donner* Texscan* CATV Blonder -T* B&K Comsonics D&S Corley Spectrum Analyzers Dynascan Echo Intech H -P Jerrold* Kay* B&K* H -P* Kay* Marconi* R&S* Systron- Lampkin Marconi* Mid State Comm Philips Donner* Tektronix* Texscan* Sadelco Tektronix* Telonic Altair Texscan* Theta Com* Vitek Wavetek* Status & Alarm Belar*Bird*Marconi* Moseley*Marti Indicators McBee Rust SMC* Construction Aberdeen 5-6 Anixter-Pruzan 2-6 Christy 4 Accessories Contender 4 Copperweld 5 Ditch Witch 2* Automatic TV Marconi* R&S* Underground & Pole Monitors Davis Mfg. 2 Durnell 1* Electrovert 3 E -Z 1. aerial lifts Way 3 Fribley 4 Gilbert Eng. 3* Gen'l Cable 2. trenchers 1,3* Handley 4 Hunt -Pierce 1,3 Imperial Vectorscopes Beston Electronics* Heath* Simpson* Tek- 3. cable installation Plastic 4 Jacobsen 2 Jerrold 3* Kings 3* tronix* tools Preformed 5,6 Pyramid 3* Repco Products 4. enclosures & 4 Utility Body 1* Utility Products 4* Utility Video Test Colorado Video* Datatek* Lenco* Marconi* pedestals Tool 3 Generators R&S* Systron- Don ner* Tektronix* 5. strands Thomson-CSF* 6. pole hardware

VITS, VIR, Systems Marconi* Philips Inst.* R&S* Tektronix* Services Able Comm 3 AEL Comm 1-3* Burnup Sims and Equipment 1. maintenance 2-4 Comark 1* Cable Construction 2,3 GTE 2. design consulting Sylvania 3* Jackson 3 Jerrold 2-4* Network Waveform Monitors Colorado Video* Gen'l Radio Gotham* H -P* 3. construction Analysis 2 OAK 3-4* RCA 2* ThetaCom and Analyzers R&S* Sharp Systron-Donner* Tektronix* 4. finance 1-3* Tocom 1-3*

46 SEPTEMBER, 1975-BM/E Discover Single System Sound Super -8 Movies with the New Beaulieu "5008S" For the last 10 years, Super -8 film Angenieux succeeded in creating a (11/2" x 1-1/5" in size) completely fills has been "silent". Without sound, your new zoom lens that covers all the focal the viewfinder (and consequently, the Super -8movies were "incomplete". lengths from 6-80mm (a13.3 to 1 screen-when projecting). Today, there is "Ektasound" film, zoom ratio). Forget the Exposure a revolutionary film which provides the Imagine such a lens in 35mm still means to record sound (directly on the photography.Itwould go from a With the "5008S", you can concen- film) as you're filming. You, therefore, 35mm wide angle to a 500mm tele. tratetotally on framing and sound can shoot "complete" movies. In addition, the lens opens to f1.2 recording.Thediaphragm operates With the new Beaulieu movie cam- (an unprecedented feature on a zoom automatically and stops instantly at era, you will go even further in Super -8. lens with such a wide focal length the right aperture. (This feature has The "5008S" benefits from the advan- range). "Manual Override".) ced technology provided by Beaulieu: Lens Interchangeability an image with a professional touch, and New Dolly Shot Style now sound with a high quality level. The power zoom of the Beaulieu The "5008S" is the only single sys- "5008S" is continuously variable. You tem sound camera with an interchange- Professional Sound Quality can travel the full focal length range in able lens. It accepts 35mm still photo- Pop in a new Super -8 sound ("Ekta- 4 seconds, or 12 seconds (or any speed graphy lenses (by means of an adapter), sound") film cartridge. Focus. Then, in between). as well as all 16mm "C" mount lenses. plug in the mike. That's all the prepara- The choice is yours. You can inter- tion you need. With theBeaulieu Macrocinematography - Without change an unlimited amount of differ- "5008S", you're now ready to start Touching the Subject ent lenses in order to create a certain filming professional quality Super -8 "feeling"oreffectinyourfilms. single system sound movies. To film macrocinematography with For full information on the new An amplifier is built into the cam- the "5008S", just zoom to 80mm and focus. At the minimum focusing dis- Beaulieu "5008S" Super -8 Single Sys- era which records the sound directly tem Sound Camera, please write to: onto the magnetic stripe of your sound tance of 2 feet, 8 inches, you get all the film. The camera records high fidelity light available since the lens doesn't HERVIC CORPORATION sound, both in treble as well as bass 14225 Ventura (frequency response: 50-12,000 Hz ± ple, at this distance, a postage stamp Sherman Oaks, California 91403 1.5 dB; distortion: less than 0.75%; signal-to-noise ratio: 57 dB; wow and flutter,attenuatedpeak:lessthan 0.4%). The "5008S" modulates the single system sound recording automatically. However, there is also a "manual" setting so that you can modulate the sound as you are filming (by using the VU meter). "XL" (Existing Light) Filming Capability The "5008S" has "XL" (Existing Light) filming capability which is pro- videdby:asuper -fastlens(f1.2, 6-80mm Angenieux zoom), a longer exposure time for the image (1/40 second), and a through -the -lens metering system that sends 100% of the available light to the film. Since many of your sound movies will be filmed indoors, this feature will enable you to shoot films in the available light of your scene (whether that "light" is bright or not). From the "Widest" Wide Angle Shot...To the "Closest" Close -Up The Beaulieu "5008S" For the lens, Beaulieu turned to the professional and technical "know how" of Angenieux (which supplies Sound Movie Camera NASA foralltheir space missions). Circle 225 on Reader Service Card SEPTEMBER, 1975-BINE 47 DELTA ELECTRONICS

THE AM BROADCASTER'S SINGLE SOURCE FOR. . . DIGITAL ANTENNA MONITORING TRANSMITTER/ANTENNA CONTROL MEASUREMENT/TEST INSTRUMENTS Digital Antenna Monitoring DAM -1 DIGITAL ANTEN ',1A MONITOR - FCC type approved. Provides digital readout of amplitude, ratio and phase. Also available: D AMA -1 Base Current Adapter for remote digital readout of antenna base currents; DAMA-2 Analoc Converter to Interface DAM -1 Monitor with existing analog remote control systems; DAMX-- to extend capacity of DAM -1 to arrays up to 12 towers. Transmitter/Antenna Remote Control TMCS-1 TRANSMITTER/ANTENNA REMOTE CONTROL SYSTEM - Provides digital readout and control of the DAM -1 and transmitter ove- a single voice channel. Other systems available:DAMR-1/DAML-1 for digital readout and control of the DAM -1 only; DAMH-1 for use where the remote control point is close enough to the monitor to permit hardwired inter -connection, Measurement/Test Instruments 01B-1 OPERATING IMPEDANCE BRIDGE - For antenna system measurements under transmitter power. May also be used as a conventional bridge.

RG-1 RECEIVERiGENERATOR - Two -watt signal generator w:th a tracking detector.Built-in recharge- ablebattery power supply forfullportabilityin making low power impedance measurements. For use with 0113-1 or other RF bridges.

CPB-1 COMMON POINT IMPEDANCE BRIDGE - Monitors common point impedance continuously. Designed for permanent installation.

FSM-1 FIELD STRENGTH METER - Single frequency meter for simple, error -free, economical field strength measurements.Plug in modules for multi -frequency and harmonic measurements. Other Products

TCT-( 1 TOROIDAL Ct. R RENT TRANSFORMER- Provides accurate, stable R. F. samples for phase and amplitude measurements.Available in three sensitivities.Also available: TCTR-1 Compensated Rectifier Circuit to provide DC voltage for remote

current measurement when used with TCT-( 1.

MJ-50 METER .:ACK - C, make -before -break in line jack assembly that permits "hot" insertion of 01B-1 Bridge or Ammeters.

5534 PORT ROYAL ROAD DELTA ELECTRONICS SPRINGFIELD, VIRGINIA 22151 TELEPHONE: 703/321-9845 TWX: 710-831-0620 1 Circle 126 on Reac.er Service Card Broadcast Equipment Manufacturers Including Manufacturers of Cable TV equipment The manufacturers in the Source directory-covering 9 major categories-received an extensive BM/E form to complete, indicating which equipment or products are in regular production. Manufacturers were also asked to supply supporting product bulletins or catalogs as verification that the product is indeed bona fide and readily available. The VS designation following the product description indicates that such verification was forwarded and is on file with BM/E. Distributors that are nationwide exclusive sources for equipment are included in this manufacturer's section. Non-exclusive distributors are in the rep/distributor section. Field offices are given only for those companies which are advertising this issue. Advertisements are also cross referenced under corresponding reps/distributors except for those cases where the advertiser elected not to supply this data.

AGFA-GEVAERT INC 275 NORTH S7 ALDEN ELECTRONIC & IMPULSE A TETERBORO NJ 07608 201 288-4100 RECORDING EQUIP CO INC 1 magnetic audio tape VS WASHINGTON ST WESTBORO MA 01581 617 366-8551 AILTECH (DIV OF CUTLER -HAMMER) fax recording systems; weather data systems 19535 E WALNUT DR CITY OF INDUSTRY ABERDEEN COMPANY PO BOX 2663 CA 91748 213 965-4911 ALFORD MFG CO 120 CROSS STREET CULVER CITY CA 90230 213 870-5353 WINCHESTER MA lashing wire, messenger strand pole line line of signal generators & broadcast instrumentation 01890 617 729-8050 hardware, buried system accessories antennas, FM, TV, microwave; diplexers, rf AIR SPACE DEVICES INC PO BOX 197 loads, if switchers; microwave units; ABLE COMMUNICATIONS & PARAMOUNT CA 90723 213 774-4905 ELECTRONICS 3422 US 19 NORTH PO transm.ssion line & line accessories; tower accessories; safety devices; climbers impedance bridge, CATV test equip BOX 236 PALM HARBOR FL VS 33563 813 784-2734 ALLIED IMPEX CORP (DIV OF AIC PHOTO cable TV amplifier & other electronic equip AITKEN COMMUNICATIONS INC 701 INC) 168 GLEN COVE RD CARLE PLACE maintenance & consulting services TENTH ST TAFT CA 93268 805 765-5403 NY 11514 516 742-7300 automation programmer, audio controller. ACOUSTIC RESEARCH 10 AMERICAN DR photographic equip & accessories including NORWOOD MA 02062 617 769-4200 time control super -8 cameras also optical & misc loudspeakers AKG AUDIO DIV PHILIPS AUDIO VIDEO accessories SYSTEMS CORP 91 McKEE DR MAHWAH ALLIED TOWER CO PO BOX 331 SOUTH ACRODYNE INDUSTRIES INC 21 201 391-1000 COMMERCE DR MONTGOMERYVILLE PA NJ 07430 HOUSTON TX 77587 713 946-9546 condenser microphones; dynamic 18936 215 368-2600 antenna towers & accessories; tower design, microphones; special purpose microphones; construction, erection VS TV transmitters & translators; rf amplifiers; headphones; audio amplifiers; reverb TV exciters VS systems; turntables; intercom systems VS ALLISON RESEARCH INC 2817 ERICA See ad pg. 103 See ad pg. 51-refer to rep/dist section PLACE PO BOX 40288 NASHVILLE TN 37204 615 255-4766 ADVENT CORP 195 ALBANY ST AKAI AMERICA LTD 2139 E DEL AMO 617 661-9500 limiter/compressor, console modules CAMBRIDGE MASS 02139 BLVD COMPTON CA 90220 213 537-3880 tape cassette players, reel-to-reel portable video cameras, portable videotape ALPHA ELECTRONIC SERVICES INC 8431 player/recorders, microphones, loudspeakers, recorder/players, telecine equip VS MONROE AVE STANTON CA TV projection systems See ad pg. 13-refer to rep/dist section 90680 714 821-4400 AEL COMMUNICATIONS CORP PO BOX Calif Akai America 2156 The Alameda San multi -function tone generators, (audible, 507 LANSDALE PA 19446 215 822-2929 Jose 95126 408 288-6228 subaucfible), digital clocks, remote control VS cable amplifiers; passive cable accessories; NJ Akai America 6 Kilmer Rd Edison See ad pg. 74 cable connectors; CATV design services VS 08817 201 985-3760 ALTEC SOUND PRODUCTS DIVISION 1515 A.F. ASSOCIATES INC 415 STEVENS AVE ALCO PRODUCTS INC 1551 OSGOOD ST S MANCHESTER AVE ANAHEIM CA RIDGEWOOD NJ 07450 201 447-0096 NO ANDOVER MA 01845 617 685-4371 92803 714 774-2900 color framer for editing aid VS machine knobs loudspeakers; microphones; audio consoles;

SEPTEMBER, 1975-BM/E 49 ASSOCIATES INC 4 MAIN ST EXT attenuators; audio processors; VU meters; THE SOURCE '75 TARIFFVILLE CT 06081 203 658-7666 custom consoles VS wideband if delay lines; ultrasonic delay lines for chroma keyers, enhancers, time AUDIO INTERFACE SYSTEMS INC 2708 base correctors, drop -out compensators, etc FIFTH AVE S IRONDALE AL audio amplifiers; turntables, arms, pickups; VS 35210 205 595-6469 intercoms; audio processing units VS ANDREW CORP 10500 W 153RD ST audio consoles AMCO ENGINEERING CO 7333 W AINSLIE ORLAND PARK IL 60462 312 349-3300 AUDIOSEARS CORP SOUTH ST ST CHICAGO IL 60656 312 867-8500 earth station antennas; antennas, TV & STAMFORD NY 12167 607 652-7305 racks, cabinets, enclosures VS microwave; transmission line & line microphones, dynamic & dynamic connectors; general connectors VS windscreens, headsets AMECO INC PO BOX 13741 PHOENIX AZ 85002 602 252-7731 ANDREWS TOWER INC 1420 LAYTON AUDIO SERVICES INC 3140 E cable trunk and distribution amplifiers; AVE FT WORTH TX 76117 817 831-1222 JEFFERSON ST DETROIT MI head -end signal processors; pilot carrier AM antennas; antenna towers, tower 48207 313 567-0555 generators; bandpass filters, combining accessories; tower lighting transmitter computer for fault detection, networks; CATV test equip & tools; video ANGENIEUX CORP OF AMERICA ISLIP stand-by activation; remote control systems; automation equip AIRPORT PO BOX 340 RONKONKOMA NY studio audio switcher, alarm indicators; AMERICAN DATA CORP (AN AIRPAX CO) 11779 516 567-1800 digital clock systems; custom -designed PO BOX 5228 315 WYNN DR HUNTSVILLE video camera lenses, cine lenses, lens studios & studio equip; automation systems; EBS signal equip AL 35805 205 837-5180 accessories & associated hardware controls VS audio & video distribution amplifiers; vertical ANIXTER COMMUNICATIONS SYSTEMS AUDIO-TECHNICA US INC 33 interval switcher; master control switcher; (MARK ANTENNAS) 5439 W FARGO SHAWASSEE AVE FAIRLAWN OH chroma keyers; pulse distribution amplifiers; SKOKIE IL 60076 312 675-1500 44313 216 836-0246 production switchers; sync generators; microwave antennas & accessories stereo & quad phono pickups, microphones, special effects generators digital clocks arms, headsets, audio chart recorder; record ANIXTER-PRUZAN 1963 FIRST AVE S systems; waveform monitors; video test cleaners; audiocables VS generators VS SEATLE WA 98154 206 694-6506 See ad pg. 55-refer to rep/dist section full line of pole line & CATV construction AUDIOTECHNIQUES INC 142 HAMILTON Calif ADC W. Wiseman 425 S New access; strand wires; passive components; AVE STAMFORD CT 06902 203 359-2312 Hampshire Suite 301 Los Angeles head -end & distribution equip; power mixers (Allen & Heath), speakers & 90020 213 387-7756 supplies; converters, local origination equip accessories; mike stands & booms (monks); Ga ADC J. Ryan 1729 Wilmont Dr Atlanta ANN ARBOR TERMINALS INC 6107 amplifiers (H/H); lighting systems; equalizers 30329 404 633-2100 JACKSON RD ANN ARBOR MI VS AMERICAN ELECTRONIC LABORATORIES 48103 313 769-0926 AUDIO/TEK INC PO BOX 5012 SAN JOSE INC PO BOX 552 LANSDALE PA display & terminal CRT equip; alphanumeric CA 95150 408 378-5586 generators 19446 215 822-2929 VS audio tape cartridge loaders VS FM exciters; AM & FM transmitters; sca ANNES (R B) CO 1101 N DELAWARE ST equip; rf amplifiers VS AUDIOTRONICS CORP PO BOX 3997 INDIANAPOLIS IN 46202 317 637-9282 NORTH HOLLYWOOD CA AMERICAN TECHNOLOGY CO INC 2562 W demagnetizing kits 91609 213 765-2645 ENCANTO BLVD PHOENIX AZ ANTENNA PRODUCTS CO BOX 520 headsets, microphones, tape cartridge equip, 85009 602 272-1234 MINERAL WELLS TX 76067 817 325-3301 picture monitors VS coaxial cables; coaxial connectors; passive antenna services distribution accessories VS AUDITRONICS INC 207 SUMMIT ST ANTENNAS FOR COMMUNICATIONS INC MEMPHIS TN 38104 901 276-6338 AMILLON CORP 49-12 30TH AVE CORDAGE PK PLYMOUTH MA audio consoles; line amplifiers; equalizers VS WOODSIDE NY 11371 214 274-1794 02360 617 746-8180 transport mechanisms microwave antennas; earth station antennas AUDIO -VIDEO ENGINEERING CO 65 NANY BLVD MERRICK NY 11566 516 546-4239 AMPEREX ELECTRONIC CORP EOD DIV VS hum reduction filters PROVIDENCE PIKE SLATERSVILLE RI ARISTOCART DIV OF WESTERN 02876 401 762-3800 BROADCASTING LTD 505 BURRARD ST AUDIO/VIDEO PRODUCTS 9336 FOSTORIA tubes for video cameras; camera viewfinder VANCOUVER CANADA ST DOWNEY CA 90241 213 861-6072 digital music maker; electronic slating picture tube VS V7X 1C4 604 687-2844 system VS See ad pgs. 56, 94-95-refer to rep/dist section tape cartridges VS Calif Robert Manahan 3760 Cahuenga Blvd See ad pg. 136 AUTOGRAM PO BOX 456 PLANO TX No Hollywood 91604 213 762-2118 75074 214 424-8585 ARP INSTRUMENTS INC 320 NEEDHAM automation equip; audio amplifiers; mono & Ill Ralph E Johnson 175 Scott St Elk ST NEWTON MA 02164 617 965-9700 Grove 60007 312 593-8220 music synthesizers stereo consoles VS AMPEX CORP 401 BROADWAY REDWOOD ARRIFLEX CORP OF AMERICA 25-20 AUTOMATED PROCESSES INC 789 PARK CITY CA 94063 415 367-2011 AVE HUNTINGTON NY BKLYN QUEENS EXPWY (WEST) 11743 audio tape; audio tape recorders/players WOODSIDE NY 11377 212 932-3403 516 427-6024 (portable, studio, multi -channel); audio time 16mm & 35mm cine cameras, camera automated multi -channel mixer, audio code gen's; var speed ocs; videotape; lenses consoles; audio preamps; distribution, power, videotape recorder/reproducers (quad & line amplifiers; audio attenuators; equalizers; helical); automatic video cassette ARVIN SYSTEMS INC See Echo Sciences compressor/limiters; tape machine synchronizers recorder/reproducer; broadcast color ASACA CORP 1289 RAND RD DES VS cameras; time base correctors VS PLAINES IL 60016 312 298-4380 AVA ELECTRONICS 242 PEMBROKE AVE Ampex is also exclusive distributor of EECO portable TV color cameras; monochrome LANSDOWNE PA 19050 215 284-2500 products (see listing) cameras; lenses, heads, mounts, dollies; cable TV multiple dwelling terminals; AMPRO CORPORATION 850 video monitors; videotape recorder/players distribution amplifiers, line extenders; coaxial PENNSYLVANIA BLVD FEASTERVILLE PA ASSOCIATION OF CINEMA connectors; passive accessories VS 19047 215 322-5100 LABORATORIES 901 N WASHINGTON ST AVANTEK INC 3175 BOWERS AVE SANTA audio consoles & mixers; audio controls, ALEXANDRIA VA 22314 703 548-7502 CLARA CA 95051 408 739-6170 equalizers, attenuators; tape cartridge film processing laboratory CATV test equip, sweep generators player/recorder; multicart machines; test tapes; tape accessories VS ASTATIC CORP BOX 120 CONNEAUT OH AVONIX PO BOX 505 BROOKFIELD WI See ad pg. 76-refer to rep/dist section 44030 216 593-1111 53005 414 784-1800 pickups, microphones, microphone stands flying erase edit unit for Sony VC AMP SPECIAL INDUSTRIES VALLEY FORGE PA 19482 215 647-1000 ATLAS SOUND DIV AMERICAN TRADING AVTEL CORP 1280 BLUE HILLS AVE CATV connectors & tools; patch panels & & PRODUCTION CORP 4 POMEROY RD BLOOMFIELD CT 06002 203 242-0761 terminals PARSIPPANY NJ 07054 201 887-7800 video information systems for pay cable, microphone stands & accessories, speakers, video switcher, film chains automatic AMTRON CORP PO BOX 21043 SAN JOSE columns videocassette player; mobile televans VS CA 95151 408 238-2522 Network of over 40 dealers distributors throughout video monitors AUDIO ACCESSORIES INC KEENE NH 03431 603 352-2320 the USA & Canada-contact main office for local ANACONDA CATV 7465 LAMPSON AVE audio connectors, jack panels, patch cords, outlet Calif D.J. Sofie 7119 Pomela Dr Canoga GARDEN GROVE CA 92641 714 898-2611 plugs, jacks VS CATV cable; trunk & distribution amplifiers; Park 91307 213 884-6269 head -end signal processors; CATV tools; AUDIO DESIGNS & MFG INC 16005 NY Avtel 44 Railroad Ave Glenhead passive cable units VS STURGEON ST ROSEVILLE MI 11545 516 671-8010 48066 313 778-8400 See ad pg 128 ANDERSEN (WALTER M A) & audio consoles; audio amplifiers, equalizers, continued on page 52

50 SEPTEMBER, 1975-BM/E Bellow into it, sweat over it, man -handle it. Practically jam While it delivers all the high quality audio a program produces, it into the bell of a trumpet. Without overloading. Without distorting. it's so small it can't hide anybody's video. This AKG D -140E is a super -tough single element, cardioid The D -140E lets music sound life -like, without any colora- dynamic microphone that's sensitive enough for top studios or tion of its own. There's a 12dB bass roll -off filter switch recessed concert halls. into the handle to let you reduce the proximity effect. Or retain it, Frequency range: 30 to 15,000 Hz. SPL for 0.5% THD: at as the needs of a session dictate. 1000 Hz is 129dB. Its front to back discrimination exceeds 18dB The D-140E's transducer is internally suspended and en- at 1000 Hz at a sound incidence angle of 180.° capsulated by a wire mesh/urethane foam windscreen/shield. The D -140E can be boom mounted or hand held. There are So handling noise, dust, wind anc popping won't interfere with no grills or openings on the shaft to cause feedback or alter re- your work. sponse when hand held. See your professional equipment dealer for the D -140E or The compact size of the D -140E works on stage or TV too. write to us. Before the pressure builds up.

AKG MICROPHONES HEADPHONES distributed by. PHIUPS AUDIO VIDEO SYSTEMS CORP.. AUDIO DIVISION 91 McKee Drive, Mahwah, New Jersey 07430 A North American Ph lips Company

For the pressure of your company. (At 129dB, distortion is less than 1%)

Circle 127 on Reader Service Card 51 SEPTEMBER, 1975-BM/E NY BERKEY-COLORTRAN 25-15 50TH ST BROADCAST ELECTRONICS INC 8810 THE SOURCE '75 NY 11377 212 721-3434 BROOKVILLE RD SILVER SPRING MD 20910 301 588-4983 BESTON ELECTRONICS 9024 W 51ST tape cartridge players/recorders; multicart TERRACE SHAWNEE KS 66203 machines; automatic playbacks, remote 913 362-4400 consoles, consoles and mixers; preamps; B automatic density light controls; oscilloscope distribution & monitor amps; audio vector displays, rack frames VS processing equipment; picture monitors; BETA TECHNOLOGY INC 94 VERDI ST accessories; tapeheads VS BACH AURICON INC 6950 ROMAINE ST FARMINGDALE NY 11735 516 293-4313 See ad pg. 110 sync generator assignment control; digital HOLLYWOOD CA 90038 213 462-0931 BROADCAST EQUIPMENT LEASING CO heads, mounts & dollies; cine cameras & timer; videotape editing timing control; display systems; colorizer; time code 1412 GRANT BLDG PITTSBURGH PA lenses 15219 412 281-3768 generator VS BALLANTINE LABORATORIES INC PO leasing programs for broadcast & CATV BOX 97 BOONTON NJ BETHANY INTERNATIONAL INC 5750 equip 07005 201 335-0900 BINTLIFF HOUSTON TX BSC INC 8600 WEST SUNNYSIDE AVE 77036 713 783-1260 frequency counters; dB meters; voltmeters; CHICAGO IL 60656 312 625-0265 audio distribution amplifiers VS waveform monitors; oscilloscopes VS portable consoles, mixers VS BALL BROTHERS RESEARCH CORP BIDDLE JAMES G CO TOWNSHIP LINE & BUHL OPTICAL 1009 BEECH AVE MIRATEL DIV 1633 TERRACE OR ST JOLLY RDS PLYMOUTH MEETING PA PITTSBURGH PA 15233 19462 412 321-0076 PAUL MN 55113 612 633-1742 215 646-9200 CCTV film chains; slide projector; multiplexer color & b&w monitors; video signal CATV test equip VS w.o. dedicated cameras multiplexers; special effects generators B I ELECTRONICS 128 DONALDSON CTR See ad pg. 84 BARCO US DIV KALLMAN ASSOC INC GREENSVILLE SC 29604 803 277-5985 BULOVA WATCH CO INC-AM TIME 2525 HYPERION AVE LOS ANGELES CA EBS alert system PRODUCTS DIV 61-20 WOODSIDE AVE 90027 213 660-4900 BIOMATION 10411 BUBB RD CUPERTINO WOODSIDE NY 11377 212 335-6000 picture monitors; magnetic video discs; CA 95014 408 255-9500 studio clock systems & frequency standards digital electronic timers; cross -hatch analog to digital color video digitizer generator VS BURWEN LABORATORIES 209 BIRD ELECTRONIC CORP 30303 AURORA MIDDLESEX TPKE BURLINGTON MA BARDWELL MCALISTER INC 12164 RD CLEVELAND (SOLON) OHIO 01803 617 237-1488 SHERMAN WAY NORTH HOLLYWOOD CA 44139 216 248-1200 noise filters, noise reduction systems, audio 91605 213 875-1913 rf wattmeters; rf loads; rf filters; rf processors, distribution & monitor amps; studio lighting equip, lighting accessories, attenuators; status & alarm systems VS audio processing equip; picture monitors; mounting hardware, dimmers, control video film noise filters VS systems, color gelatines & distribution equip BIRNS SAWYER INC 1026 NO HIGHLAND AVE LOS ANGELES CA BARKER & WILLIAMSON INC CANAL ST 90038 213 466-8211 BRISTOL PA 19007 215 788-5581 camera heads, tripods, dollies; camera & rf amplifiers; audio test equip lens accessories; film editing equip; lights & BASF CORP CROSBY DR BEDFORD MA light stands C 01730 617 271-4000 BIRNUP & SIMS PO BOX 2431 WEST audio tape; calibration tape PALM BEACH FL 33401 305 683-8311 BAUSCH LOMB SOPP DIV-OPTIC CTR cable TV construction, strand mapping, field CABLEDATA 1931 K ST SACRAMENTO BAUSCH ST ROCHESTER NY engineering CA 95813 916 442-4760 14602 716 338-6470 data processing services available to CATV BJA SYSTEMS INC 666 DAVISVILLE RD systems TV camera lenses; motion picture camera WILLOW GROVE PA 19090 215 659-4141 lenses; spectrum analyzers color video synthesizer VS CABLE FACTS SUB OF UNITED DATA BCS-See Kaman Sciences CENTERS 2228 YOUNG DRIVE B&K INSTRUMENTS INC 5111 W 164TH ST LEXINGTON KY 40505 606 269-2323 BELAR ELECTRONICS LABORATORY INC CLEVELAND OH 44142 216 267-4800 Cable Facts, computerized subscriber BOX 826 DEVON PA 19333 215 687-5550 audio line, distribution, preamplifiers; billing/management service with AM, FM, & TV frequency & modulation dynamic & condenser microphones; tele-processing monitors; rf amplifiers; silence alarm; SCA open -reel type recorders; tuntables; rf CABLEVISION CONSTRUCTION CORP 910 equip VS amplifiers; signal generators; distortion See ad pg. 132 meters, level meters; impedance bridges, BAY AREA BLDG HOUSTON TX phase meters, sideband analysers, spectrum 77058 713 488-6510 BELDEN CORP (ELECTRONIC DIV) analysers; CATV test equip VS construction, services, system mapping RICHMOND IN 47374 317 966-6661 rf cable; audio cable; wire; transmission BLONDER -TONGUE LABORATORIES INC CABLEWAVE SYSTEMS INC 60 DODGE AVE NO HAVEN CT 06473 lines; coaxial cable VS ONE JAKE BROWN RD OLD BRIDGE NJ 203 239-3311 08857 201 679-4010 transmission lines & line connectors; BELL & HOWELL (AV PRODUCTS DIV) CATV headends, signal processing equip; transmission line pressurizing equip; 7100 MC CORMICK RD CHICAGO IL MATV equip; CATV test equip; FM & TV waveguide & waveguide accessories VS 60645 312 262-1600 antennas pay -TV systems VS film chains, projectors CADCO INC POB 18904, OKLAHOMA CITY BOGNER BROADCAST EQUIP CORP 99 W OK 73118 405 681-5377 BELL P/A PRODUCTS CORP 1209 N HAWTHORNE AVE VALLEY STREAM NY CATV pre -amps. message systems, FIFTH S COLUMBUS OH 11580 516 561-9130 antennas 43201 614 299-1487 TV antennas; microwave antennas VS amplifiers, background music systems, CALVERT ELECTRONICS INC 220 E 23 ST See ad pg. 72 NEW YORK NY 10010 212 679-1340 commercial sound systems electronic tubes for cameras, transmitters, BOONTON ELECTRONICS CORP RTE 287 BENJAMIN ELECTRONIC SOUND CORP 40 AT SMITH RD PARSIPPANY NJ surge protectors, other components VS SMITH ST FARMINGDALE NY 07054 201 887-5110 11735 516 694-7960 CAMBRIDGE PRODUCTS CORP 101 FM -AM signal generators; impedance FOLEY ST SOMERVILLE MA audio equip; CCTV equip bridges; dB meters; rf watt meters; 02145 617 666-3343 BERKEY COLORTRAN INC 1015 capacitance test meters VS CATV connectors & "F" fillings VS CHESTNUT ST BURBANK CA 95102 213 843-1200 BORG-WARNER (INGERSOLL PRODUCTS CANON SCOOPIC 10 NEVADA DR LAKE studio lights, stands, controls, filters, DIV) See EMCOR SUCCESS NY 11040 516 488-6700 accessories VS professional 16mm motion picture cameras; See ad pg. 87 ROBERT BOSCH CORP lenses (including zoom); complete systems See Fernseh See ad pg. 107 BOSTON INSULATED WIRE & CABLE CO CANON USA INC 10 NEVADA DR LAKE 65 BAY ST BOSTON MA SUCCESS NY 11040 516 488-6700 The VS designation following the 02125 617 746-7650 video camera lenses, cine cameras & description of a company's products cable systems for TV cameras, connectors lenses, tape heads VS VS See ad on pg. 101. Refer to rep/dist section indicated that the manufacturer verified to BRAND-REX DIV AMERICAN ENKA CORP Cal Canon OBM 123 Paularino Ave E Costa BM/E in July of 1975 that these products PO BOX 498 WILLIMANTIC CT Mesa 92626 714 979-6000 are in regular production and data on the 06226 203 423-7771 III Cannon USA 457 Fullerton Ave Elmhurst product/equipment is on file with BM/E. flexible transmission line, coaxial cable, wire 60126 312 833-3070 & cable continued on page 54

52 SEPTEMBER, 1975-BM/E Cleanup yourimage with EEVcamera tubes.

' 8572V 1 inch magnetic Vidith P8130 to P8133 30mm Coaxial for use in color film Leddir.ioe series with internal chain operation ght tias. Replaces most integal or separate mesh color camera tubes Available in standard la}er as wed as extended red or green.

P858 41/2 inch Image Orthicon 8134,01 1 inch electrostatic for use as the luminance tube focus Vidicon for color film in color cameras. chain broadcast applications. 108480V1 1 V2 inch tube for use in lurrinance channel.

Clean, precise, consistent-EEV Leddicon® cam- From the same one -stop source you can also era tubes are made to last. They can be used as re- specify EEV Image Orthicons-we're the world's placements for Plumbicon and Vistacon tubes. biggest makers-and Vicicons. Hundreds of stations in the USA and throughout All EEV tubes are available for immediate ce- the world use Leddicons to down costs and up livery with fast service back-up. Contact us now quality. for type lists and prices. EEV NORTH AMERICA ENGLISH ELECTRIC VALVE NORTH AMERICA LTD. 1 American Drive Cheektowaga, NY 14225 (716) 632-5871 TWX: (7101 523-1862 67 Westmore Drive Rexdale, Ontario M9V 3Y6 (416) 745-9494 Telex: 06 965864 A member of the GEC - English Electric Group of Companies Leddiconis a registered trademark of English Electric Valve Company Limited Circle 128 on Reader Service Card Plumbiconis a registered trademark of N. V. Philips' of Holland CETEC AUDIO (DIV OF CETEC INC) 13035 Penn COHU Wayne 215 688-7325 THE SOURCE '75 SATICOY ST NO HOLLYWOOD CA Tex COHU Arlington 817 461-2900 91605 213 875-1900 audio amplifiers, controls; consoles, mixers; COLLINS RADIO GROUP OF ROCKWELL Mesa 92626 714 979-6000 tape duplicators, speakers VS INTERNATIONAL CORP DALLAS TX III 75207 214 690-5574 Cannon USA 457 Fullerton Ave Elmhurst CHANNELMATIC ELECTRONICS 1234 60126 312 833-3070 FM transmitters, AM transmitters, antenna ANOBE LN EL CAJON CA systems, audio control consoles; microwave CAPITOL MAGNETIC PRODUCTS 1750 N 92021 714 448-6298 equip; frequency monitors; audio controllers VINE ST HOLLYWOOD CA automated videocassette programmer; a -v & processors, full line consoles, 90028 213 462-6252 switchers, routing switchers, distribution microphones; dist of other lines VS open -reel, cartridge & cassette audio tape; amplifiers VS See ad pg. 45

cartridges & cassettes; magnetic film VS CHARLES MACHINE WORKS INC (SEE Alaska R.F. Cassady PO Box 2743 Fairbanks See ad pg. 73-refer to rep/dist section Canada DITCH WITCH) 99707 Calif CMP 3117 San Fernando Rd Los Ariz Morris Courtright 1450 W Arroyo Dr Angeles 90065 213 255-5103 CHIRON TELESYSTEMS 11 GRACE AVE Yuma 85365 602 783-6380 Ga CMP 1670 NE Freeway Access Rd Atlanta GREAT NECK NY 11021 516 829-5666 Fla R.J. Henry 14018 W Parsley Dr Madeira 30329 404 321-5441 character generators; graphics system; titling Beach 33708 813 391-8065 III CMP 6401 Gross Point Rd Niles equip VS La W.J. Monroe 8427 Ridgemont Dr 60648 312 775-7101 See ad pg. 12 Pineville 71360 318 640-3412 Md CMP Century XXI 20030 Century Blvd Calif CHIRON 851 Burlway rd Bulingame Md C.M. Beverage 10104-M Woodlake Dr Germantown 20767 301 428 0795 94010 415 348-1144 Cockeysville 21030 301 666-7059 Mass CMP 235 Elm St Dedham CHOMERICS INC 77 DRAGON COURT Mich D.W. Hill 38780 Hartwell Sterling 02026 617 329-5777 WOBURN MA 01801 617 935-4845 Heights 48077 313 979-6320 Mich CMP 550 E Mandoline St Madison RFI strip gaskets, conductive RFI o -rings, Minn J.L. Littlejohn 200C West Branch Rd Heights 48071 313 583-9600 shrinkable connector shields Maple Plain 55359 612 479-2633 NY CMP 1370 Ave of the Americas New Mo John Shideler Rte #1 Box 217-B Oak York 10019 212 757-7470 CHRISTY CONCRETE PRODUCTS INC Grove 64075 816 229-1141 Ohio CMP 7777 Exchange St Cleveland 44100 CHRISTY ST FREMONT CA NY A.A. Silver Collins Radio Group 200 44125 216 524-8940 94538 415 657-7070 Park Ave New York 10017 212 661-6530 Tex CMP 6730 Oakbook Blvd Dallas precast concrete & plastic housing for Oreg R.G. Beattie 1122 N.E. 122nd Ave Rm 75235 214 638-0784 underground cable systems B-211 Portland 97230 503 254-2818 CHRONO-LOG CORP 2 W. PARK RD. Tenn R.C. Evans Rt.#.1 Box 103D Glenmore CATEL (DIV UNITED SCIENTIFIC CORP) HAVERTOWN PA 19083 215 853-1130 Dr Rockford 37853 615 573-9717 1400-D STIERLIN RD MOUNTAIN VIEW CA digital clocks & calendars; time -code Texas R.S. Rentfrom Collins Radio Group 94043 415 965-9003 generators & readers VS 1200 N. Alma Rd Richardson FM modulators & demodulators; FM 75080 214 690-5424 microwave sub -carrier systems; FM head CINEMA BEAULIEU DIV HERVIC CORP end processors, filters VS 14225 VENTURE BLVD SHERMAN OAKS COLORADO VIDEO INC PO BOX 928 CA 91403 213 981-2395 BOULDER CO 80302 303 444-3972 CATERPILLAR TRACTOR 100 NE ADAMS film cameras & lenses; tripods, camera mono cameras, video compression equip; PEORIA IL 309 676-3311 accessories; microphones, tape color synthesizers VS emergency power generators recorder/players VS See ad pg 142 CBS TECHNOLOGY CENTER 227 HIGH CINEMA PRODUCTS CORP 2037 COMARK INDUSTRIES INC PO BOX 196 RIDGE RD STAMFORD CT GRANVILLE AVE LOS ANGELES MAIN LINE IND PARK WESTFIELD MA 06905 203 327-2000 90025 213 478-0711 01085 413 568-1870 audio systems, quadrophonic encoders, 16mm film cameras; lenses for 16mm RF amplifiers; RF switchers; transmission sound systems cameras; camera tripods, cases, line & connectors; demodulators VS accessories; camera sound recording CCA ELECTRONICS CORP 716 JERSEY systems & accessories; audio & location COMMERCIAL ELECTRONICS INC 880 AVE GLOUCESTER NJ 609 456-1716 lights, light stands, accessories VS MAUDE AVE SUNNYVALE CA AM, FM, UHF, VHF transmitters all ranges, See ad pgs. 77 8 83 94043 415 969-1910 UHF -VHF antennas, transmission lines, AM NY CP Eastern Sales 262 Long Beach Blvd TV cameras, studio & portable; color & FM monitors; STL, remote pickup equip, Long Beach 11561 516 889-2484 encoders; image enhancers audio consoles, tape cartridge equip, automation, turntables CLEAR-COM (DIV OF LUMIERE PROD COMM/SCOPE CO PO BOX 2406 See ads pg. 127 INC) 759 HARRISON ST SAN FRANCISCO HICKORY NC 28601 CA 94107 704 328-5271 415 989-1130 drop and distribution coaxial cable for CATV C-COR ELECTRONICS INC 60 DECIBEL portable intercom systems VS RD STATE COLLEGE PA VS 16801 814 238-2461 CMX SYSTEMS (ORROX CO) 635 COMMUNICATION ARTS INC BOX 478 CATV trunk, distribution, extender amplifiers; VAQUEROS AVE SUNNYVALE CA BERNARDSVILLE NJ headend equip; cable passives; CATV test 94086 408 245-8450 07924 videotape editing equip 201 766-4012 equip VS VS universal crystal sync unit for motion picture CENTRAL DYNAMICS CORP 230 COASTCOM 2346 STANWELL DR cameras CONCORD CA 94520 415 825-7530 LIVINGSTON ST NORTHVALE NJ COMMUNICATIONS CARRIERS INC 33 07647 201 767-1300 voice over video diplexers for STL microwave; video low pass filters VS RIVER RD GREENWICH CT TV automation systems; computerized 06807 203 661-7655 videotape & audio tape editing equip; tape COHERENT COMMUNICATIONS CO 13733 microwave communications systems VS machine synchronizers; processing GLEN OAKS BLVD SYLMAR CA amplifiers, chroma keyers, video production 91342 213 362-2566 COMMUNICATIONS TECHNOLOGY CORP switchers, pulse distribution amplifiers, power supplies for cond microphones; 2237 COLBY AVE LOS ANGELES CA routing switchers; sync generators, special importer of Rycote windshield; film footage 90064 213 478-5061 effects generators, colorblock & cue dot counter VS CATV splicing, materials, fittings generators, time code generators, time code readers, video mixing amplifiers; CCTV, COHU INC ELECTRONICS DIV PO BOX 623 SAN DIEGO CA 92112 714 277-6700 COMMUNICATIONS TECHNOLOGY INC CATV video production switchers VS See ad pg. 7 TV color & mono cameras, studio & 3070 LEEMAN FERRY RD HUNTSVILLE AL portable; color connectors, color.encoders, 35801 205 883-7370 Calif P. Welcome 15130 Ventura Blvd audio switchers, video routing switchers VS Suite #219 Sherman Oaks image enhancers, video switchers, pulse 91403 distribution amplifiers; TV film cameras, 213 789-0574 telecine chains; color pattern generators, III R. Faulkner 331 W. Northwest Hwy COMMUNITY INFORMATION SYSTEMS sync generators; distribution amplifiers VS Palatine 60067 312 991-4720 JONATHAN VILLAGE CENTER CHASKA See ad pg. 109 NJ CDC 230 Livingston St Northvale MN 55318 612 448-4800 Ala COHU Huntsville 205 881-6220 07647 201 767-1300 two-way diplex filters for CATV Calif COHU Cerritos 213 962-7002 CENTURY PRECISION CINE/OPTICS 10661 COHU Costa Mesa 213 869-5884 COMPQUIP INC 366 S MAPLE BURBANK BLVD NORTH HOLLYWOOD CA COHU Palo Alto 415 326-0280 GLENROCK NJ 07452 201 444-3800 91601 213 766-3715 COHU San Diego 714 278-8931 wide-angle lenses for 16mm & 35mm cine mfg of fixed lens adapters for TV; distributor Colo COHU Denver 303 573-8835 of lenses & film equip; stands, dollies; video use; motion picture accessories Fla COHU Orlando 305 896-4881 animation aids VS CERRO CATV DIV OF CERRO CORP Ind COHU Michigan City 219 874-3333 HALLS MILL RD FREEHOLD NJ Md COHU Washington DC 301 656-3061 Mass COHU Bedford 617 275-0370 COMPU/NET INC 8616 LA TIJERA BLVD 07728 201 462-8700 LOS ANGELES CA 213 642-2211 trunk distribution & drop cable; splitters, Neb COHU Lincoln 402 467-2900 NJ COHU Florham Park automated business services for radio & TV taps & couplers VS 201 377-6636 NC COHU Greensboro 919 273-1918 continued on page 57

54 SEPTEMBER, 1975-BM/E THE ADC

IL: '41 4111.4 11141/4 41

; 1 -...M11114It 1444144444 .1.11' -..!diN.1 -"WM° 1/11lilltt:!I 900

A distribution switching system for those who demand the finest performance available today.

The 900 is the ONLY system to feature a."developed for television" Integrated Circuit Crosspoint to discretely switch video -audio -tally, all withsuperb specifications.

While designed for computer control, thesystemissuppliedwiththe facilities to accommodate any conven- tionalornon -conventionalcontrol scheme.

The 900 is the mos-_, flexible, versatile gEtalms: and superior system available t='day. 40 x 60 AFV

AMERICAN DATA CORPORATION AIRRN ELECTRONICS 2ambridge Division MIOiCAN OKA CON/0011 0 ,AIRPAX-, Zambridge, Md. 315 WYND DRIVE, N.W.P O. BOX 32.28 HONITSVIL_E 4LAEAMA 358C5 TEL. 205-837-5180 Circuit Breakers& Switches L'ontrols Division Lauderdale, Fla. 1729 VIILMONT DRIVE 5504 NV-MIRA.AsI 4_51_!VILEHIRE B-. STE900 2908 MULBERRY ATLANTA. GA 30329 ROCKNAL.E MO..20153 _JS.ANGELES. CA. 90010 PASADENA, TX. 77502' Tachometry&Control Instrumentation

404 2100 301 4.13-1,-94 ! 3 -382-796 . 713 - 941-727i .

Circle 129 on Reeder Service Cart 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, Variable Vacuum Capacitors, UHF Klystrons, UHF -TV 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 Industrial Power Amperex Supplies & Oscillators TOMORROW'S THINKING IN TODAY'S PRODUCTS - Microwave Ovens & Commercial A NORTH AMERICAN PHILIPS COMPANY Radar Equipment Scientific Instruments... Circle 130 on Reader Service Card 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 GLASSPORT PA 15045 412 664-7131 antennas tower accessories, wire & cable The VS designation following the THE SOURCE '75 description of a company's products CORAL INC 7700 MARINE PLAZA RIVER indicates that the manufacturer verified to ROAD NORTH BERGEN NJ BM/E in July of 1975 that these products COMPUTER IMAGE CORP 2475 W 2ND 07047 201 656-2020 AVE DENVER CO 80223 303 934-5801 CATV trunk & distribution equip; passive are in regular production and data on the animation equip; large & small production components product/equipment is on file with BM/E. switchers, routing switchers; chroma keyers, downstream mixer/keyer VS CORLEY D&S LTD 80 GALAXY BLVD M9W 4Y8 See ad pg. 11-refer to rep/dist section UNIT 3 REXDALE ONTARIO DAVIS MANUFACTURING DIV OF J.I. test materials for CATV CASE PO BOX 1801 WICHITA KN COMPUTER MAGNETICS CORP 125 W 67213 316 265-6251 COSMICAR OPTICAL CO LTD 2-568 PROVIDENCIA AVE BURBANK CA trenchers for direct cable burial; line layers vs 213 849-2356 SHIMOOCHIAI SHINJUKUKU TOKYO 91502 JAPAN DBX INC 296 NEWTON ST WALTHAM MA refurbished VTR heads video camera lenses; camera heads, mounts 02154 617 899-8090 & dollies; CCTV camera lenses, cine lenses tape recorder noise reduction systems; COMREX CORP PO BOX 269 SUDBURY See ad pg. 108 VS dynamic expanders; noise reduction MA 01776 617 358-4042 modules gain control modules VS wireless mic systems for news gathering; COX DATA SYSTEMS INC 1601 W See ad pg. 82 intercom systems; CVE systems VS PEACHTREE ST NE ATLANTA GA See ad pg. 138 30309 404 892-7390 DELTA-BENCO-CASCADE LTD 124 billing package for CATV system operators; BELFIELD RD REXDALE ON CANADA COMSONICS INC PO BOX 1106 mini computer systems for TV automation VS M9W 1G1 416 241-2651 HARRISONBURG VA 22801.. 703 434-2404 headend, trunk amplifiers, distribution remote switching equip for CATV VS CROCK BRUCE A INC 8286 WINTON RD amplifiers for CATV CINCINNATI OH 45231 513 521-5040 DELTA ELECTRONICS INC 5534 PORT CONCORD COMMUNICATIONS SYSTEMS storage racks for cartridges VS 790 PARK AVE HUNTINGTON NY ROYAL RD SPRINGFIELD VA 11743 516 673-8000 CROSSROADS AUDIO PO BOX 19671 22151 703 321-9845 CCTV cameras, surveillance systems, DALLAS TX 75219 214 526-1636 antenna/transmitter remote control systems; cartridge & cassette vtr's, video switchers concert sound reinforcement mixer; cable antenna monitors; field strength meters, fault tester VS impedence bridges, phase meters; monitoring & test accessories VS CONRAC DIV CONRAC CORP 600 N CROWN INTL 1718 W MISHAWAKA RD See ad pg. 48 219 294-5571 RIMSDALE AVE COVINA CA ELKHART IN 46514 NY Delta Intl Div PO Box AB Mamaroneck 91722 213 966-3511 audio power amplifiers, audio preamplifiers; 10543 914 698-2783 TV monitors; audio; video receivers; variable filters; tape player/recorders; demodulators; monitor accessories VS intermodulation distortion test equip VS DICTAPHONE CORP 120 OL POS RD RYE NY 10580 914 967-6211 CONSOLIDATED DIESEL ELECTRIC 1500 CSI ELECTRONIICS INC 835 INDUSTRIAL telephone answering equip HWY BLDG 4 CINNAMINSON NY E PUTNAM AVE OLD DIELECTRIC COMMUNICATIONS DIV OF GREENWICH CT 203 637-4341 08077 609 786-1060 AM and FM transmitters SOLA BASIC RTE 121 RAYMOND ME emergency power generators 04071 207 655-4555 CUNNINGHAM CORP 10 CARRIAGE ST strobe beacons, rf watt meters, coaxial CONSOLIDATED VIDEO SYSTEMS 3300 HONEOYE FALLS NY 14472 . 716 624-2000 cable, waveguide & accesories VS EDWARD AVE SANTA CLARA remote control pan & tilt units CA 95050 408 247-2050 DIGITAL COMMUNICATIONS INC 310 14TH time base correctors, field synchronizers, CUSH CRAFT 621 HAYWARD ST AVE SOUTH ST PETERSBURG FL video compressor VS MANCHESTER NH 03103 603 627-7877 33701 813 895-3214 See ad pg. 122-refer to rep/dist section yagi antennas for CATV pay -TV systems & software Ala Jerry Knight 2614 Scenic View Dr DIPOL ELECTRONICS INC 1970 Huntsville 35801 205 852-3535 ELLESMORE RD SEARBOROUGH ON Fla Duane Tuttle 7601 Pasa Dobles Tampa CANADA MIH 2 WI 416 438-5135 33615 813 886-4400 studio consoles for broadcasters NJ Richard Deiss 471 W Main St Wyckoff 07481 201 891-5661 DITCH -WITCH TRENCHERS PO BOX 66 D PERRY OK 73077 405 336-4404 CONTENDER CORPORATION 433 trenchers; vibratory plow; earth saw; COMMUNITY LANE PO BOX "D" backhoe; hydraulic breaker VS WOODLAND CA 95695 916 662-3934 Contact main headquarters for local office. underground plant construction equip for DATA COMMUNICATIONS CORP 3000 CATV DIRECTORS ROW MEMPHIS TN DIX HILLS ELECTRONICS INC 25 N MALL CONTINENTAL ELECTRONICS MFG CO 38131 901 332-3544 PLAINVIEW NY 11803 516 420-1166 PO BOX 17040 DALLAS TX computer service for sales, traffic, cross modulation, intermodulation & 75217 214 381-7161 operational accounting (TV & radio) VS distortion measurement equip for CATV high -power AM broadcast transmitters; 5/10 DATA DISC INC 686 W MAUDE AVE DOLBY LABORATORIES INC 1133 AVE OF kW transmitters; AM antennas; diplexers & rf SUNNYVALE CA 94086 408 732-7330 THE AMERICAS NEW YORK NY loads VS stop action video recorders 10036 212 489-6652 CONTROL CONCEPTS CORP 411 N DATA LOGIC/RUST PO BOX 273 noise reduction systems; audio processing STONESTREET AVE ROCKVILLE MD amplifiers; magnetic recording accessories EVERETT MA 02149 617 322-1313 See ad pg. 121-refer to rep/dist section 20850 301 762-8580 remote control systems VS video sync generators; audio signal DOWNE COMPUTER SERVICE INC 112 generators; harmonic & IM distortion meters; DATA METRICS 340 FORDHAM RD videowaveform equalizers; delay lines; test TENTH ST DES MOINES 10 WILMINGTON MA 01887 617 658-5410 515 282-5131 sets VS 50309 time code generator, digital clocks, master & subscriber billing services for CATV TV CONTROL DESIGN CORP 205 S WHITING slave clocks; time code readers VS DRACON INDUSTRIES 9541 MASON AVE ST ALEXANDRIA VA 22304 703 751-5650 DATATEK CORIP 1200 W CHESTNUT ST CHATSWORTH CA 91311 213 882-8595 radio automation systems; tape cartridge UNION NJ 07083 201 964-3656 aluminum relay racks VS players; digital clocks loggers VS video/audio routing switchers; video, audio See ad pg. 63-refer to rep/dist section & pulse distribution amplifiers, video color DUNLAP CLARK ELECTRONICS 230 phase equalizers & waveform correctors CALVARY ST WALTHAM MA CONVERGENCE CORP 4400 CAMPUS video sweep generators; video test equip; 02154 617 547-0638 DRIVE NEWPORT BEACH CA audio processing amplifiers VS audio power amplifiers VS 92660 714 549-3146 See ad pg. 75-refer to rep/dist section editing control systems DURNELL ENGINEERING INC HIGHWAY 4 DATATRON INC 1562 REYNOLDS AVE SOUTH EMMETSBURG IA SANTA ANA CA 92711 714 540-9330 COOKE ENGINEERING CO 900 SLATERS 50536 712 852-2611 videotape editing equip VS LANE ALEXANDRIA VA aerial personnel lift trucks VS 22314 703 548-3889 See ad pg. 61 video, audio & pulse distribution equip; DATAVISION VIDEO PRODUCTS -3M DYMA ENGINEERING INC RT 1 BOX 51 audio equalizers & line amplifiers; patch COMPANY 15932 SHADY GROVE RD TAOS NM 87571 515 758-2686 panels; character generators; master clock GAITHERSBURG MD 20760 301 948-0460 custom audio consoles for broadcasters VS systems; time distribution modules VS character generators, including graphic arts DYNAIR ELECTRONICS INC 6360 COPPERWELD STEEL COMPANY WIRE generators VS CABLE DIV 1000 MONONGAHELA AVE See ad pg. 125-refer to rep/dist section continued on page 58

SEPTEMBER, 1975-BM/E 57 EFRATOM CALIF INC 3303 HARBOR BLV THE SOURCE '75 E-1 COSTA MESA CA 92626 714 556-1620 rubidium freq standard FEDERAL BLVD SAN DIEGO CA EG&G INC ELECTRO MECHANICAL DIV 92114 714 582-9211 MOULTON ST GEORGETOWN MA video pulse & distribution amplifiers, routing 01833 617 352-6200 & production switchers, sync generators, cable connectors spec effects generators, modulators, demodulators, chroma keyers, equalizers, EIMAC, DIV OF VARIAN 301 INDUSTRIAL exciters, diplexers, sideband analyzers, WAY SAN CARLOS CA audio preamps, audio monitor amps, audio 94070 415 592-1221 switchers, rf switchers VS complete line of broadcast quality power See ad pg. 124 grid tubes (triodes, tetrodes, pentodes) Company products available from all major See ad cover III video distributors throughout the world Arii Varian 7117 Third Ave., Scottsdale 85251 602 947-5461 DYNASCAN CORP B&K DIV 1801 W Calif BELLE PLAINE AVE CHICAGO IL Varian 4940 El Camino Real Los Altos 94022 415 968-7630 60613 312 327-7270 Calif CATV test equip Varian 2901 Wilshire Blvd Santa Monica 90403 213 828-5588 DYNASCIENCES VIDEO PRODUCTS Fla Varian 314 S. Missouri Clearwater TOWNSHIP LINE RD BLUE BELL PA 33516 813-446-8513 19422 215 643-0250 Ga Varian 6650 Power Ferry Rd, N.W. videotape editing equip; automatic program Atlanta 30339 404 252-0045 controllers; image enhancers, processing III Varian 205 W Touhy Ave Park Ridge amplifiers, production switchers, pulse & 60068 312 825-6686 distribution amplifiers, routing switchers, Md Varian 4701 Lydell Rd Cheverly colorizers, sync generators, special effects 20781 301 773-7010 generators VS Mass Varian 400 Totten Pond Rd Waltham See ad pg. 96-refer to rep/dist section 02154 617 890-4560 NJ Varian 306 Fellowship Rd Mount Laurel 08057 609 235-6800 the first NJ Varian 25 Route 22 Springfield 07081 201 376-6600 NY Varian 115 Twin Oaks Dr Syracuse reel to reel 13206 E 315 437-2568 Ohio Varian 10 Southmoor Circle Dayton with the rugged 45429 513 298-7318 TexasVarian PO Box 789 Richardson EASTMAN KODAK CO MOTION PICTURE 75080 & AUDIOVISUAL MARKETS DIV 343 214 235-2385 reliability of STATE ST ROCHESTER NY EIP INC 3130 ALFRED ST SANTA CLARA 14650 716 325-2000 CA 95050 408 244-7975 motion picture cameras; motion picture film; microwave frequency counters projectors for TV; film processors VS See ad pg. 9 ELECTRA CO DIV OF MASCO 300 S Calif Kodak PO Box 38939, Hollywood COUNTY LINE RD CUMBERLAND IN 90038 213 464-6131 46229 317 894-3629 Kodak PO Box 3145, Rincon Annex, San automatic scanning monitors Francisco 94119 415 776-6055 itC Ga Kodak PO Box 4778 (Fed. Annex) Atlanta ELECTROCOMP ELECTRONIC MUSIC LAB The makers of premium quality 30302 404 351-6510 INC VERNON CT 06066 203 875-0752 tape cartridge equipment in the Haw Kodak PO Box 17007, Honolulu music synthesizers reel to -reel market? It had to hap- 96817 808 833-1661 III Kodak 1901 W 22 St, Oak Brook ELECTROHOME LTD 809 WELLINGTON ST pen' The result is what you, Mr. N KITCHENER ON CANADA 60521 312 654-5300 Broadcaster, have been looking NY Kodak 1133 Ave of the Americas New N2G 4J6 519 744-7111 color & b&w monitors for. All the features you demand York 10036 212 262-7100 VS Kodak 1187 Ridge Road West Rochester plus a few innovative opt onals of ELECTRONIC INTERFACE SYSTEMS INC 14650 716 254-1300 our own. And all with the rugged Texas Kodak 6300 Cedar Springs Rd Dallas 2409 S BROADWAY SANTA ANA CA 92707 714 979-0033 reliability inherent in the Interna- 75235 214 351-3221 DC Kodak 500 -12th St, SW. automated video cassette controller (random access) tional Tapetronics' name. Check 20024 VS 202 554-9300 See ad pg. 135 out these piussesinyour own Can Kodak 3500 Eglinton Ave W Toronto, studios. We offer a 30 day guar- Ontario M6M 1V3 416 766-8233 ELECTRO IMPULSE INC 116 CHESTNUT ECHO SCIENCE CORP 485 E ST RED BANK NJ 07701 201 741-0404 antee of satisfaction plus a one dry TV loads year warranty. Justcallcollect MIDDLEFIELD RD MOUNTAIN VIEW CA and say you want to try the "850" 94040 415 961-7145 ELECTRONEERING INC PO BOX 85 portable video tape recorder/reproducers VS SELMA NC 27576 919 284-2102 series. We'll do the rest. ECLAIR CORP OF AMERICA 62 WEST digital timers VS 45TH ST NEW YORK NY ELECTRONIC INDUSTRIAL ENGINEERS Phone 309-828-1381 10036 212 869-0490 See RCA Community Antenna Systems professional motion picture cameras, lenses; tripods, cases accessories for cameras ELECTRONICS DIVERSIFIED 1675 NW 216TH ST HILLSBORO OR EDCOR DIV OF P.A.C. 3030 RED HILL 97123 503 645-5533 AVE COSTA MESA CA studio light controls; patch panels 92626 714 556-2740 wireless microphones, dynamic & lavalier; ELECTRONICS MISSILES wireless sound systems VS COMMUNICATIONS INC PO BOX 116 WHITE HAVEN PA 18661 717 443-9575 EDISON ELECTRONICS See low power TV transmitters for broadcast; TV MCGRAW-EDISON transmitters for ITFS and MJS; TV EDITEL COMMUNICATIONS LTD 5610 translators; TV antennas CHEMIN BOIS FRANC MONTREAL ELECTRO SOUND INC 160 SAN GABRIEL QUEBEC H4S 1A9 514 331-2951 SUNNYVALE CA 94086 408 245-6600 portable TV cameras; custom-built mobile audio tape recorder/players; portable mixers; InTERIIATICAAL video units; custom built video design & tape duplicating systems, open -reel, TAPETROIIICS CORPORATIOn installation VS cartridge, cassettes; automatic tape winders, 2425 South Main Street Bloomington. Illinois 61701 EECO 1441 E CHESTNUT AVE SANTA splicers; power amplifiers; theatre sound Marketed exclusively 'n Canada by ANA CA 92701 714 835-6000 systems; magnetic film duplicators; video McCurdy Radio 'ndustries Ltd., Toronto (SEE AMPEX) audio & video tape editing cassette winders VS equi; character generators VS continued on page 60 Circle 131 on Reader Service Card

58 SEPTEMBER, 1975-BM/E READ THIS PAGE BEFORE YOU BUY ANYTHING IN THIS BOOK. As even a casual isn't compatible with now-in most cases, look at this book will equipment you'll be by actually trying it out convince you, there's adding. Or won't be on our premises first. hardly a shortage of versatile enough for We II even let you video equipment on future applications. have your cake and the market-much of At Camera Mart, we eat it too-with rental it with advanced have a "systems" and leasing plans that features and special approach to video thatgive you the equip- capabilities. So choos-can help you get the ment now, when you ing the right equip- most for your dollar need it-plus the ment for your needs today, without putting flexibility of purchas- should be easy. you in a bind tomorrow. ing whatever and Trouble is, it's just as By carefully selecting whenever you want. easy to make costly the right equipment Talk to us. Or better mistakes. Because the yet, visit. With all the gear you get to fill money you're invest- your present needs CAMERA ing in video, it pays to MART lacks special features THE CAMERA MART. INC invest a little time 456 W. 55th St., New York,10019 you'll want later. Or (212)757-6977 with us. SALES SERVICE FIE NTAL

Circle 132 on Reader Service Card SEPTEMBER, 1975-BM/E 59 Calif G.R. Walker 6300 Arizona Circle, locking terminators; hardware THE SOURCE '75 Los Angeles 90045 213 659-4330 III V.J. Lyons 2800 South 25th Ave., GARNER ELECTRONICS 4200 N 48TH Broadview 60153 312 681-5000 LINCOLN NE 68504 402 466-1816 NJ J. Ewansky 279 Midland, Saddle Brook tape duplication systems; conveyor -type tape ELECTROVERT INC 86 HARTFORD AVE 07662 201 797-7400 erasers VS MOUNT VERNON NY 10553 914 664-6090 See ad pg. 139 harnessing equip, markers Texas L.E. Wolff 4131-A Directors Row, Houston 77018 713 688-9171 GARRON ELECTRONICS INC 1216 KIFER ROAD SUNNYVALE CA ELECTRO-VOICE INC SUB OF GULTON FELLER VACUUM FORM STUDIOS INC IND INC 600 CECIL ST BUCHANAN MI 381 CANAL PL BRONX NY 94086 408 736-8737 cartridge tape player/recorders; cassette 49107 616 695-6831 10451 212 993-2999 microphones & monitor loudspeakers VS pre -fabricated scenery player/recorders; stereo phase enhancer VS See ad pg. 139 ELPA MARKETING IND INC THORENS & FIDELIPAC (DIV OF TELEPRO ATLANTIC AVES NEW HYDE PARK NY INDUSTRIES) 109 GAITHER DR MT GATELY ELECTRONICS 57 W HILLCREST 11040 516 746-3002 LAUREL NJ 08057 609 235-3511 AVE HAVERTOWN PA source for tape recorder/players tape cartridges; cartridge storage racks, tape 19083 215 446-1415 (Ferrograph); tape editing equip (Editall); accessories; test tapes VS audio amplifiers; playback systems; test equip (Ferrograph signal generators, See ads pgs. 64, 78 automation systems distortion meters, wow & flutter) VS FILMLINE CORP 43 ERNA ST MILFORD GATES BROADCAST DIVISION (See EMCOR INGERSOLL PRODUCTS 1000 W CT 06463 203 878-2433 HARRIS CORP.) 120 ST CHICAGO IL 60643 312 264-7800 film processors cabinets; modular enclosure systems GBC CLOSED CIRCUIT TV CORP. 74 FIORENTINO IMERO ASSOC INC 10 W FIFTH AVE NEW YORK NY 10011 212 ENGLISH ELECTRIC VALVE CO NO AM 66TH ST NEW YORK NY 989-4433 LTD 67 WESTMORE DR ONT CAN M9V 10023 212 787-3050 TV cameras, studio & portable (b&w color); 3Y6 416 745-9494 kits for testing gray scale of colors, con- camera mounts; char gen's; telecine chains; camera tubes, power tubes, rectifiers VS sulting service; color monitor calibrator VS monitors; sync gen's; spec effect gen; VTRs See ad pg. 53-refer to rep/dist section FIXTUNE SOLID STATE ELECTRONICS (helical); videotape; audiotape NY EEV 1 American Dr Cheektowaga INC 1 WEST 30th NEW YORK NY 14225 716 632-5871 GENERAL CABLE APPARATUS DIV PO 10001 212 683-9353 BOX 666 5600 W 88TH AVE ESC ELECTRONICS PALISADES NJ one station FM receivers; SCA receivers VS WESTMINS7ER CO 80030 303 427-3700 07650 800 631-0853 FLASH TECHNOLOGY CORP OF AMERICA CATV construction tools; aerial lifts; delay lines, LC filters 111 LOCK ST NASHUA NH underground splicing modules; cable ESE ENTERPRISES 5051/2 CENTINELA 03060 603 883-0521 construction accessories (clamps, etc) VS AVE INGLEWOOD CA strobe beacons for towers VS GENERAL CABLE CORP 500 W PUTNAM 90302 213 674-3021 FLUKE JOHN B MFG CO PO BOX 7428 AVE GREENWICH CT 06830 . 203 661-0100 digital clocks, programming devices, timers SEATTLE WA 98133 800 426-0361 distribution cable, drop cable for CATV; See ad pgs. 112, 134 VS frequency counters, calibrators, test sets, cable processing systems, ventilators; ESSEX INTERNATIONAL INC gen purpose test equip VS heaters; dryers VS COMMUNICATIONS/CATV DIV 6235 S FORGLO CORP FRONT & REGAN ST GENERAL CAMERA CORP 471 11TH AVE HARLEM AVE CHICAGO IL SUNBURG PA 17801 717 286-5611 NEW YORK NY 10018 212 594-8700 60638 312 586-3000 magnetic recorder heads for audio cine cameras; camera accessories; film coaxial cables, CATV & general; CATV drop magnetic recording equip cables; wire & cable generally FORT WORTH TOWER CO INC 5201 BRIDGE ST PO BOX 8597 FORT WORTH GENERAL ELECTRIC CO CCTV DIV 316 E EVENTIDE CLOCK WORKS INC 265 WEST 9TH ST OWENSBORO KY 54TH ST NEW YORK NY TX 76112 towers, prefab bldgs. reflectors 42301 502 683-2401 10019 212 581-9138 CCTV cameras; CCTV systems; lenses; audio phase controllers; audio F & P SYSTEMS 1053 EAST MEADOW tripods & accessories VS compressor/expander/limiters; audio digital CIRCLE PALO ALTO CA 94303 delay lines; audio flanger VS digital weather station GENERAL ELECTRIC CO LAMP DIVISION NELA PARK CLEVELAND OH E -Z WAY PRODUCTS INC 13155 FREZZOLINI ELECTRONICS INC 7 VALLEY 44112 216 266-2121 NEBRASKA AVE PO BOX 17196 TAMPA ST HAWTHORNE NJ 07506 201 427-1160 stage, studio, TV lamps VS FL 33612 813 971-1961 professional 16mm cameras, lenses, communication towers accessories; motion picture lights; portable GENERAL ELECTRODYNAMICS CORP power packs for video cameras VS 4430 FOREST LANE GARLAND TX 75042 214 276-1161 FRIBLEY ENTERPRISES PO BOX 389 monochrome TV cameras; camera tubes VS CANADA RD PAINTED POST NY F 14870 607 962-3890 GENERAL RADIO CO 300 BAKER AVE terminal boxes for CATV MATV CONCORD MA 01742 617 369-4400 test equip; bridges; sound level meters FUJI VIDEOTAPE, 350 FIFTH AVE, NEW FAIRCHILD SOUND EQUIPMENT CORP 75 YORK, NY 10001 212 736-3335 GILBERT ENGINEERING CO 3700 N 36TH AUSTIN BLVD COMMACK NY videotape VS AVE PHOENIX AZ 85019 800 528-5567 11725 516 543-5200 coaxial cable connectors, adapters, fittings, audio power, pre-, processing amplifiers; FUJINON OPTICAL INC 420 WEST END terminations, accessories, tools VS reverberation units; compressor/limiters; AVE NEW YORK NY 10024 212 724-9834 audio attenuators, equalizers, mixers; audio camera lenses VS GLOBE BATTERY 5757 N GREEN consoles; TV consoles; video distribution FUNG ENGINEERING CO 111 GLENN WAY BAY AVE MILWAUKEE WI amplifiers; tape erasers, splicers, head BELMONT CA 54002 415 591-5141 53201 414 228-2116 cleaners VS CATV Channel switchers, filters, modulators batteries VS See ad pg. 133 FARINON ELECTRIC 1691 BAYPORT AVE VS GOLDMARK COMMUNICATIONS ONE SAN CARLOS CA 94070 415 593-8491 COMMUNICATION PLAZA STAMFORD CT microwave systems; multiplex equip; 06904 203 327-7270 microwave repeaters; FM over video film to video transfer system; auto skew systems; relay systems for radio & TV corrector; auto video cart player broadcasters; microwave accessories; video G distribution & subbarrier amplifiers VS ALAN GORDON ENTERPRISES INC 1430 N CAHUENGA BLVD HOLLYWOOD CA F&B/CECO OF CALIFORNIA INC 7051 GABRIEL ELECTRONICS PO BOX 626 90028 213 985-5500 SANTA MONICA BLVD HOLLYWOOD CA SCARBOROUGH INDUSTRIAL PARK motion picture cameras, projectors; lenses & 90038 213 469-3601 SCARBOROUGH ME 04074 207 883-5161 accessories; film editing equip VS manufacture & rental of motion picture equip parabolic, horn & shrouded antennas; lighting equip sound equip editing equip & elliptical & circular waveguides GOTHAM AUDIO CORP 741 WASHINGTON CCTV equip ST NEW YORK NY 10014 212 741-7411 GAF CORP 140 W 51ST ST NEW YORK condensor microphones (Neumann); audio & FERNSEH GROUP ROBERT BOSCH CORP NY 10020 212 582-7500 stereo consoles (FayIon); audio disc cutting 279 MIDLAND AVE 8mm motion picture cameras; color films, equipment (EMT); reverberation units (EMT); SADDLE BROOK NJ 201 797-7400 slide films, motion picture films; film audio recorder/players (Telefunken); studio & portable TV cameras; videotape processing equip; film & slide projectors; compressor/limiters (EMT); broadcast recorder/players; multiplexer for telecine; accessories VS turntables (EMT); headsets (Beyer); tape video color monitors; color encoders; TV GAMCO INDUSTRIES INC 317 COX ST timers; flutter meters (WoeIke); phase color standards converter VS ROSELLE NJ 07203 201 241-7500 meters (Neumann); audio attenuators See ad pg. 37 CATV fittings; splitters; directional1 taps: continued on page 62

60 SEPTEMBER, 1975-BM/E The Editor -In -Chief:

Now you can economically edit on helicals and automatically transfer in minutes to quads The editing system you've the frame. This saves quad PLAY been waiting for. QUAD head wear. Tape wear, too. Meet the Editor -In -Chief. Our And is also a great time PLAY U A thrifty new Vidicue 5050. QUAD saver on stop -and -go live It defies obsolescence. production by generating RECORD You can expand from two to QUAD a continuous uninterrupt- DATATRON QUAD/ three machines at will. Or COMPUTER VIDICUE HELICAL ed elapsed time on the 5050 T move up in logical steps to a SWITCHER tape. H PLAY H HELICAL completely automatic on- E Save your expensive quads L line, off-line system where PLAY for other jobs. HELICAL C editing is done on low cost A The block diagram tells the TELETYPE helicals and transferred in HRECORD L story. You can edit on-line S SPECIAL I HELICAL minutes to quads. I EFFECTS I or off-line. Do time Easy to learn, and to I SWITCHER I consuming edits or low cost operate too. Simple helicals. Edit event times keyboard entry. Visual are stored in the computer display of tape position and al edit The importance of Jam -Sync. and a punched tape prepared. Using points. Exclusive jam sync, eliminating Our exclusive jam -sync eliminates the this tape, a precisely edited show can forever the need to pre -record SMPTE need to pre -lay -down the SMPTE edit be automatically transferred to quads edit code on tape. A/B rolls, color code on an entire length of fresh tape in minutes. framing, special effects switching, being used to assemble a show from Your quads have never had it so time base correction. The works! other tapes. Instead, during pre -roll, good. Or your pocketbook either. Yet this remarkable video tape the system time code generator is auto- We'd like to tell you the whole editing system is priced far below matically set and sync'd so that time story of our Editor -in -Chief. competition. In fact, there is none. picks up exactly where it left off - to Why not write or phone today.

datatron. inCEDITING SYSTEMS DIVISION 1562 Reynolds Ave., Santa Ana, California 92705 (714) 540-9330 TWX 910-595-1589 Mailing Address: P.O. Box 11427, Santa Ana, California 92711 Circle 133 on Reader Service Card monitors; videotape recorder/players; phase, CATV test equip THE SOURCE '75 modulation, frequency monitors; rf amplifiers; HERVIC CORP 1508 COTNER AVE W LOS transmission lines & accessories; remote ANGELES CA 90025 213 478-5086 (Danner); polarity testers; rumble meters controL equip. VS Beaulieu cine cameras; Stellovox tape (Neumann); digital audio delay unit; monitor See ad pg. 105 recorders & mixers; lenses & accessories; speakers (K&H); wire & cable (EMT); input Field offices fluid tripods; film editors; microphones; transformers (Beyer) VS Ca Harris Corp BE/DIV 1945 S Figuerea Los digital FM receiver VS Angeles See ad pg. 47 DC Harris Corp BE/Div 1522 K St NW Calif GAC 810 W Bristol St Suite E Washington 20005 202 223-5508 HEWLETT-PACKARD CO 1501 PAGE MILL Elkhart 46514 219 264-0931 Ga Harris Corp BE/Div 1745 Tully Circle RD PALO ALTO CA 94304 415 493-1501 GOULD INC 467 CALHOUN ST TRENTON NE Atlanta 30329 404 636-09006 oscilloscopes, frequency counters, waveform NJ 08607 609 392-3111 NY Harris Corp BE/Div 130 E 34th St New analyzers, digital multimeters, signal power inverters; battery chargers, batteries York 10016 212 889-0790 generators, sweep oscillators, spectrum Oh Harris Corp BE/Div 55 Public Square analyzers VS GRASIS FABRICATING CO 5601 GARDNER Cleveland 44113 216 781-6322 AVE KANSAS CITY MO HITACHI SHIBADEN CORP OF AMERICA Tx Harris Corp BE/Div 4019 Richmond Ave 58-25 BROOKLYN -QUEENS EXPRESSWAY 64120 816 483-1100 Houston 77027 713 623-6655 WOODSIDE NY 11377 212 898-1261 broadcast, CATV, microwave towers; molded PO Gates Div Harris 212 Brunswick Blvd fiberglass head -end buildings studio & portable color & mono video Pointe -Claire 514 695-3751 cameras; video monitors; pulse distribution THE GRASS VALLEY GROUP INC PO BOX On Gates Div Harris 19 Lesmill Road Don amplifiers; sync generators; special effects 1114 GRASS VALLEY CA Mills M3B-2T3 416 447-7234 generator; videotape recorder/players; video 95945 916 273-8421 District managers, radio cartridge recorder/players; microwave equip; automation equip; video production & routing Al JD Miller 413 20th Court NE Birmingham semi -conductors VS switchers; pulse & distribution amplifiers, 35215 205 251-0485 chroma keyers, processing amplifiers, sync CA Fl Switzer 1945 S. Figueroa Los Angeles HOLLAND ELECTRONICS INC 842 E 94TH generators, special effects generators; 90007 ST BROOKLYN NY 11236 212 649-7330 crossbar intercom systems, credit crawls colorizers; equalizers VS Fl I Raulerson PO Box 958 Macclenny See ad pg. 5 32063 904 791-0108 HORIZON ELECTRONICS 1151 W VALLEY NY GVG Station Plaza E Great Neck Mi D Orienti 56 S Crestview Dr Adrian BLVD ALHAMBRA CA 11021 516 487-1311 49221 313 423-4560 91803 213 284-4217 Calif GVG 4419 Van Nuys BI Ste 307 Mo C Patterson PO Box 1173 Maryland artificial reverberation unit VS Sherman Oaks 91403 213 990-6172 Heights 63043 Ga GVG 1644 Tuille Cir NE Atlanta Neb G. Hassinger 1479 19th Ave Waverly HUGHEY PHILLIPS INC 3050 N 30329 404 634-0521 68462 CALIFORNIA ST BURBANK CA Tex GVG PO Box 482 Mabank 75147.. 214 887- NC R Sawicki 2006 Cedar Park Dr Apt A 91505 213 849-1104 1181 Greensboro 27407 919 855-1146 tower lighting, beacons, de-icers VS Ind GVG 810 W Bristol St Suite E Elkhart NY E Karl 130 E 34th St New York 10016 HUNT -PIERCE CORP 230 OLD GATE 46514 219 264-0931 Oh E Huber Rte 3 Rinehart Rd Bellville LANE MILFORD CT 06460 203 878-7491 44813 GROUP 128 50 SUN ST WALTHAM MA aerial platforms; cable handling; pulling Okla C Lutz PO Box 45107 Tulsa 74145 equip 02154 617 891-1800 SC ER Lowder 7209 Stonehaven Drive electret microphones Columbia 803 776-2059 GTE LENKURT INC 1105 COUNTRY RD Tx L. England 4019 Richmond Ave Houston SAN CARLOS CA 94070 415 591-8461 77027 microwave equip; remote control systems; Wa N Arveschoug PO Box W Oak Harbor remote pickup & STL systems; 98277 206 682-6860 demodulators; program subcarrier equip VS DC P. Timple 730 Federal Bldg 1522 K St NW 20025 GTE SYLVANIA CATV OPERATIONS 114 S Wi R Gorjance 3320 Ivy Lane Racine IDEAL INDUSTRIES 1780 BECKER PLACE OREGON ST EL PASO TX 53402 416 639-7889 SYCAMORE IL 60178 815 895-5181 79901 915 544-7550 wire, cable stripping equip CATV distribution & trunk amplifiers, passive District managers, television IGM DIV OF NORTHWEST TECHNOLOGY devices, connectors, constr. services VS Ca T O'Hara 1945 S Figuera Los Angeles INC 4041 HOME RD BELLINGHAM WA GTE SYLVANIA (LIGHTING PRODUCTS 90007 98225 206 733-4567 GROUP) 100 ENDICOTT ST DANVERS MA DC L Page 730 Federal Bldg 1522 K St NW radio automation systems; multicart Wash 20005 01923 617 777-1900 machines; random access memory; auto studio, theatre & TV lights, accessories Ga G Hardy 1745 Tully Circle NE Atlanta logging systems; read out/display units; VS 30329 time/weather announcers VS GULTON INDUSTRIES INC ENGINEERED III V Russell 1810 N Ridge Ave Arlington See ad pg. 130 MAGNETICS DIV 13041 CERISE AVE Heights 60004 HAWTHORNE CA 90250 213 679-0111 NY D Spindle 130 E 34th ST New York IKEGAMI ELECTRONICS INDUSTRIES INC CATV standby power & amplifier protection 10016 OF NY 35-37 31ST LONG ISLAND CITY systems Oh B Culbertson PO Box 2927 Rocky River NY 11106 212 932-2577 44116 rugged portable color TV cameras for Tex V Killion 4019 Richmond Ave Houston electronic journalism VS 77027 HARWALD CO 1245 CHICAGO AVE ILC TECHNOLOGY INC 164 COMMERCIAL H EVANSTON IL 60202 312 491-1000 ST SUNNYVALE CA 94086 408 738-2944 film inspection, cleaning equip; splicers; CATV tower lighting systems editing equip IMAGE MAGNIFICATION INC 538 HAMLIN INTERNATIONAL CORP 126 SW BLOOMFIELD AVE VERONA NJ HARWOOD MFG CO 1800 W FULLERTON 153RD ST SEATTLE WA 07044 201 239-1141 98166 206 246-9330 CHICAGO IL 60614 312 929-1100 large -screen TV projection systems VS CATV band-pass filters: converters; passive photographic & electronic lighting equip head -end processing devices; couplers; portable lighting bars IMPERIAL PLASTICS INC 1015 W receivers HOOVER ORANGE CA HEATH CO BENTON HARBOR MI 92667 714 532-1671 HANDLEY INDUSTRIES INC 2101 49022 616 982-3200 watertight plastic underground boxes; plastic BROOKLYN RD JACKSON MI intercoms; tape cartridge equip; conduit for buried systems; cable clips; tap 49204 517 789-6181 loudspeakers; oscilloscopes; multimeters; cabinets plastic closures for buried service wires frequency counters; signal generators, of & rf; distortion meters; impedance bridges; INDUSTRIAL ELECTRIC REELS INC 1125 HARRIS CORP GATES BROADCAST CATV test equip JACKSON ST OMAHA NE DIVISION QUINCY ILL 68102 402 422-1001 62301 217 222-8200 HEINDL MASK MOUNTS 200 ST PAUL ST cable reels & collector rings AM & FM transmitters; radio automation; TV ROCHESTER NY 14604 716 454-5080 Mounts & masks for photo slides INOVONICS INC 1630 DELL AVE transmitters; TV exciters, modulators, CAMPBELL CA drivers; rf switches, diplexers; TV, AM, FM HELLER-OAK CABLE FINANCE CO 105 W. 95008 408 374-8300 antennas & accessories; TV studio cameras: ADAMS ST CHICAGO IL solid state replacements for tube -type telecine equip; video distribution switchers, 60690 312 346-2300 Ampex recorder audio processing equip VS color encoders; TV & audio consoles; CATV financing See ad pg. 134 -refer to rep/dist section microphones, turntables, arms, limiting amplifiers; tape cartridge player/recorders; HELWICK-DOUGLAS ELECTRONICS 2409 INSTRUMENT LABORATORIES CORP 315 tape accessories; monitor speakers; video 23RD ST GULFPORT MS W WALTON PL CHICAGO IL monitors; sync generators, waveform 39501 601 863-1295 continued on page 64

62 SEPTEMBER, 1975-BM/E AM, FM, SW BROADCASTMODULAR a PROGRAM CD25G 25HzTONE GENERATOR For production studio use to insert the standard 25 Hz automation actuating tone.Starts tape AUTOMATION transport and actuates muting to eliminate bias pops and otherstart-upnoises. Tone button applies 25 Hz tone and stops transport at end of tone.

CD25S 25 Hz TONE SENSOR Senses the presence of pre-recorded 25 Hz tones on audio material and provides automation control functions.Features tone removal filter, adjustable delayed stop contacts, and fixed tone alarm for automatic tape rewind.

CD6OT TIME ANNOUNCECONTROL UNIT Adds versatilityto your automation system by using two cartridge machines or reel-to-reel trans- ports for automatic time announcements. Con- tainsits own internalIC clock.Power failure interlock disables time announcement until clock reset.

Control Design provides the total modular approach to AM, FM and Short Wave program automation.Our individual modules may be used alone, assembled into complete automation systems, or used with existing equipment to update and expand automatic programming. All Control Design equipment is manufactured to the highest standards

for excellent reliability and easy maintenance.Easily obtained solid state devices are used wiith printed circuit construction, socket mounted integratedcircuits and quick disconnect interface connectors.All equipment is covered by a one year full warranty. CD28AS SEQUENCER Low cost way to start automation with easy and economic expansion at a later date. Uses keyboard CD24R MULTIPLE CARTRIDGE MACHINE entryforsimplicityof programming. Eighty The CD24R cartridge machine (shown above) is simple and reliable - so reliable events of pre-programming provide ample storage it is used by the U.S. Government for flight training. Provides six second access to for most formats. any one of 24 cartridges.

CD28APM AUDIO CONTROLLER AND PROGRAMMER

I The CD28 family of audio controllers is perfect for your new automation system, or for use CD12C TIME PROGRAM CONTROLLER with presentaudio sources. Features 2000 pre-programmed Provides 10 programmable exact time points per events (expandable to 8000) 12 hour for real time control of CD28AS and CD28 audiosources (expandable to APM plus digital clock display.8 relay function 96), full random selectfor 9 outputs for time announcements, transmitter on/ multiple cartridge players.Ac- off control and other functions. Crystal time base cessories include remote control, and battery backup. logging and computer interfaces. control 205 S. Whiting St. Alexandria Virginia 22304 USA CDRMD REMOTE CONTROLLER design Provides full entry remote control for traffic de- TEL. 703-751-5650 partment or control room access to automationcorporation TELEX 899149 CODECOR system. Allows complete programming with display of next -to -run or program -entry. WRITE OR TELEX FOR BROCHURES AND TECHNICAL SPECIFICATIONS

Circle 134 on Reader Service Card SEPTEMBER, 1975-BM/E 63 PO BOX 34497 DALLAS TX THE SOURCE '75 75324 214 241-4128 The VS designation following the stand-by power supplies for head -end description of a company's products microwave, line amplifiers; emergency indicates that the manufacturer verified to lighting BM/E in July of 1975 that these products 60610 312 642-0123 INNOVATIVE TELEVISION EQUIP BOX 681 are in regular production and data on the test equip; cable locators; fault finders WOODLAND HILLS CA product/equipment is on file with BM/E. 91364 213 888-9421 INTECH LAB 4175 VETERANS HWY heads for TV cameras, pedestals, stands RONKONKOMA NY 11776 516 585-6754 JAMIESON FILM COMPANY 6911 FOREST automatic CATV spectrum analyser IONIC INDUSTRIES INC MORRISTOWN NJ PARK RD DALLAS TX 07960 201 539-1040 75235 214 350-1283 INTERACTIVE VIDEO INC 327 S FOURTH music synthesizers color film processors; film processor ST ANN ARBOR MI 48108 313 769-0364 accessories VS interactive terminals for 2 -way cable IRISH ELECTRONIC ENTERPRISES INC communications; pay -TV terminals; 270-78 NEWTOWN RD PLANVIEW NY JAMPRO ANTENNA CO 6939 POWER INN hotel/motel systems 11803 516 293-5582 RD SACRAMENTO CA video tape 95828 916 383-1177 INTERNATIONAL NUCLEAR CORP 608 AM, FM, TV antennas; antenna accessories NORRIS AVE NASHVILLE TN ITT CANNON ELECTRIC 666 E DYER RD VS 37204 615 254-3365 SANTA ANA CA 92702 714 557-4700 chroma keyers; video processing amplifiers; CATV coaxial connectors VS JAVELIN ELECTRONICS 6357 ARIZONA video switchers; sync generators; special CIRCLE LOS ANGELES CA ITT GREMAR CONNECTORS CANADA LTD 90045 213 641-4490 effects generators; standards converters; FOUR CANNON COUR WHITBY ONTARIO colorizers; equalizers; audio amplifiers; audio CCTV cameras, lenses, accessories; video CANADA LIN 5V8 416 668-8881 tape recorders; character generators; picture switchers VS CATV connectors, fittings; above- & monitors; video amplifiers VS INTERNATIONAL RECTIFIER CORP 233 under -ground fittings JEFFERSON DATA SYSTEMS ONE JULIAN KANSAS ST EL SEGUNDO CA ITT JENNINGS 970 MC LAUGHLIN AVE 90245 213 678-6281 PRICE PL CHARLOTTE NC SAN JOSE CA 951.16 408 292-4025 28208 704 374-3631 high power cartridge rectifiers; high voltage coaxial switchers, variable vacuum rectifier columns; solid state tube business data systems for radio & TV replacements capacitors; rf voltmeters; kilometers; vacuum coaxial relays VS JERROLD ELECTRONICS CORP 200 INTERNATIONAL TAPETRONICS CORP WHITMER RD HORSHAM PA 2425 S MAIN ST BLOOMINGTON IL ITT SUPRENANT 172 STERLING ST 19044 215 674-4800 61701 309 828-1381 CLINTON MA 01510 617 365-6331 cable trunk, distribution & line extender tape cartidge equip; reel-to-reel CATV wire, cable amplifiers; cable passive distributors; recorder/layers VS headend processors; complete headend See ad pgs. 8, 58 systems; turnkey cable installations; cable system design; coax connectors; pay-cable INTERNATIONAL VIDEO CORPORATION J systems; antennas for cable, MATV; 990 ALMANOR AVE SYNNYVALE CA modulators, demodulators, rf amplifiers; 94086 408 738-3900 transmission line end connectors VS video color cameras; telecine chains; videotape recorder/players; video cartridge JACOBSEN MFG CO SOD MASTER DIV JFD SYSTEMS DIV RIKER player/recorders; time base correctors VS 3456 WASHINGTON AVE N MINNEAPOLIS COMMUNICATIONS 142 CENTRAL AVE MN 55412 612 529-9566 CLARK NJ 07066 201 382-3700 INTERSTATE TELEPHONE ELECTRONICS vibratory plows for cable burial amplifier splitters; line stretchers; bridgers;

The MASTER CART from FIDELIPAC®

For the cleanest cart sound your station can broadcast, Master Cart is the answer. Engineered to use natural tape flow patterns that eliminate erratic tape behavior and assure repeatability both from cartridge to cartridge and usage to usage. Provides that added edge in stereo performance that conventional cartridges can't deliver. Fewer parts for simpler maintenance ... and greater reliability.

For detailed information, contact your Fidelipac Distributor or FIDELIPAt 109 Gaither Drive Mt. Laurel, NJ 08057 (609)235-3511

Circle 135 on Reader Service Card 64 SEPTEMBER, 1975-BM/E tap -offs JOHANSON MFG CO ROCKAWAY VALLEY RD BOONTON NJ 07005 201 334-2676 variable capacitors Remember! JOHNSON ELECTRONICS INC PO BOX 7 CASSELBERRY FL 32707 305 339-2111 FM & SCA broadcast receiving equip; pa amplifiers VS comesto JVC INDUSTRIES INC 50-35 56TH RD When it MASPETH NY 11378 212 392-7100 video color cameras; portable video cameras; monochrome cameras; lenses, head mounts, tripods, camera accessories; computer editing... videotape recorders/players; monitors, routing switchers, sync generators, special effects generators; videotape; video cassette players; video superimposers; video WE have a 13 minute color mixers VS vioeo cassette which shows See ad pg. 91-refer to rep/dist section Ifyouhaven't yoi what is being done every Calif JFC 1011 W Artesia Blvd Compton 90220 213 537-8230 da/ with CDL Computer III JFC 3012 Malmo Dr Arlington Hts &Ming Systems /r/ production 60005 312 593-8997 spoken toCDL, and post production

facilities .. . andwhat you coild be doing. K you're getting If you would like to see it, wrte to us on your compahy KAHN RESEARCH LABORATORIES INC less than half let!erhead; c/o Sales Dept. 956 BRUSH HOLLOW RD WESTBURY NY 11590 516 997-4545 BM/E, or give us a call. Or, communications research & design astc for our Computer Edit.ng KAITRONICS CORP 870 MAHLER RD the story. Br3chures. BURLINGAME CA 94010 415 697-9102 video character generators; SMPTE time code equip VS KALART VICTOR CORP HULTENIUS ST CENTRAL DYNAMICS LTD PLAINVILLE CT 06062 203 747-1663 large screen TV projectors; TV image Canada: 147 Hymus Blvd , Montreal, Que.. H9R-1G1 u 514-697-3811 impresser; optical multiplexer; TV film chain; U.S.A. 230 Livingston Street, Northvale, N.J. 07647 201-767-1300 TV movie projector, film editing equip, accessories VS KAMAN SCIENCES CORP (BROADCAST Circle 136 on Reader Service Card COMPUTER SERVICES) 1500 GARDEN OF THE GODS RD COLORADO SPRINGS CO 80907 303 598-5880 remote pickup broadcast systems computerized radio TV traffic/accounting systems See ad pg. 40 VS KANSAS STATE NETWORK INC 833 N MAIN ST WICHITA KS 67203 316 265-5631 time base correctors; character generators; information systems for CATV KAPPA NETWORKS INC 165 ROOSEVELT AVE CARTERET NJ 07008 201 541-1600 delay lines, networks KAREX INC 1262 LAWRENCE STATION RD SUNNYVALE CO 94086 408 734-3341 videotape VS KAY ELEMETRICS CORP 12 MAPLE AVE PINE BROOK NJ 07058 201 227-2000 CATV test instruments; noise meters; spectrum analyzers; sound spectrographsVS KINETIC TECHNOLOGY INC 3393 DeLaCRUZ BLVD SANTA CLARA CA 95050 408 249-7750 filters for telephone signals Delivering 40 watts continuous output power in the 148-172 MHz remote pick- KINGS ELECTRONICS CO 40 MARBLE up broadcast band, the B -1100T FM transmitter, combined with the TBM-1100R DALE RD TUCKAHOE NY FM receiver, affords today's broadcaster the highest -quality program relay 10707 914 793-5000 coaxial & triaxial connectors; high voltage system he can buy. On -the -spot originations, ranging from symphony music connectors; high density connectors; plugs & to emergency news -break coverage, puts the broadcaster "where it's at" ... jacks VS quickly, economically and reliably. KLEIN MATHIAS SONS INC 7200 McCORMICK RD CHICAGO IL 60645 312 588-6820 hand tools; safety equip for CATV

KLIEGEL BROS UNIVERSAL ELECTRIC STAGE LIGHTING CO INC 32-32 48TH AVE IP LONG ISLAND CITY NY TBM-1100R FM Receiver 11101 212 786-7474 lighting control systems & fixtures for remote pick-up, studio locations McMartin® KOLLMORGEN CORP 347 KING ST continued on page 66 4500 South 76th Street Omaha, Nebraska 68127 (402) 331-2000 telex 048-485 Circle 137 on Reader Service Card 65 SEPTEMBER, 1975-BM/E 91364 213 348-8614 MARCONI INSTRUMENTS 100 THE SOURCE '75 TV film chain projectors VS STONEHOUSE COURT NORTHVALE NJ L -W PHOTO INC 15451 CABRITO RD VAN 07647 201 767-7250 modulation monitors; TV sideband analyzers, NORTHAMPTON MA 01060 413 586-2330 NUYS CA 91406 213 781-0457 visual, TV special optical systems 16 mm film chain projectors spectrum analyzers, video test generators; automatic TV monitors, digital synchronizers; KORTICK MFG CO 5600 THIRD ST SAN noise test sets; sweep generators; other TV FRANCISCO CA 94124 415 822-6660 test gear; frequency counters; audio & rf pole line hardware signal generators; distortion meters VS See ad pg 119-refer to rep/dist section KOSS CORP 4129 N WASHINGTON Ga MI 1309-5 Stone Mill Ct Stone Mountain ST MILWAUKEE WI 53212 30083 404 469-7471 headphones, dynamic & electrostatic M KMS ELECTRONICS 13733 GLENOAKS MARCONI ELECTRONICS INC 1309-J BLVD SYLMAR CA 91342 .... 213 362-2566 STONE MILL COURT STONE MTN GA portable battery -operated audio mixers for 3M COMPANY MAGNETIC AUDIO/VIDEO 30083 404 469-7471 film & TV VS PRODUCTS DIV ST PAUL MN TV cameras; telecines; switchers; 55117 612 733-4399 transmitters; audio consoles; intercoms; KVC INC 770 LEXINGTON AVE NEW video pulse & distribution amplifiers YORK NY 10021 full line of recording tape for audio & video VS 212 752-3690 See ads pgs 30-31 portable video camera shoulder braces; VS camera mounts, heads, tripods 3M COMPANY MINCOM DIV ST PAUL MN MARCO VIDEO SYSTEMS INC 6114 N 55117 612 733-9880 20TH ST PHILADELPHIA PA professional audio recorders 19138 215 849-9500 3M COMPANY MINCOM DIV 300 S LEWIS video routing switchers RD CAMARILLO CA 93010 805 482-1911 L video color encoders, videotape evaluator, MARTI ELECTRONICS INC PO BOX 661 color drop -out compensator, processing CLEBURNE TX 76031 817 645-9163 video amplifier, bridging video switchers, remote pick-up & aural STL equip; audio amplifiers; remote control telemetry & LAIRD TELEMEDIA INC 2125 S WEST video image enhancer, special effects generator VS automatic digital transmitter logging TEMPIE SALT LAKE CITY UT equipment; rf amplifiers; SCA equipment; 84115 801 486-6251 See also DATAVISION See ads pgs. 67, 68, 69, 70 audio line amplifiers; audio character generators; multiplex equip; slide compressor/limiters VS Alaska 3M 3934 Spenard Rd Anchorage projectors; time/date generators VS See ad pg 123 See ad pg. 118 99503 907 279-6481 Calif 3M 126 W Elm Court Burbank LAMPKIN LABORATORIES INC 8400 MATSUSHITA (SEE PANASONIC) 91502...... 213 848-5534 NINTH AVE NW BRADENTON FL 3M 6023 S Garfield Ave Los Angeles 33505 MATTHEY PRINTED PRODUCTS LTD. (See 813 746-4175 90040 213 726-1511 signal generators; frequency meters; 3M 320 Shaw Rd S San Francisco TELEVISION EQUIPMENT ASSOCIATES) modulation monitors; deviation meters; TV 94080 415 589-2663 signal conditioner Ga 3M 2860 Bankers Industrial Dr Atlanta MAXELL CORPORATION OF AMERICA 130 30340 W COMMERCIAL AVE MOONACHIE NJ LENCO ELECTRONICS 319 W MAIN ST 404 449-6666 07074 201 933-4200 JACKSON MO 63755 Haw 3M 2880 Ualens St Honolulu 314 243-3147 audio tape, video tape VS color encoders, processing amplifiers; pulse 96819 808 841-0147 distribution amplifiers; sync generators; black III 3M 6850 S Harlem Ave Argo burst generators; video presence detector; 60501 312 496-6500 McBEE LABORATORIES 5151 WISCONSIN VS Mass 3M 155 4th Ave Needham Heigts AVE NW WASHINGTON DC changeover switch; video camera (mono) 20016 See ad pg. 79-refer to rep/dist section 02194 617 449-0300 202 244-2345 Mich 3M 23923 Research Dr Farmington automatic digital logger, digital remote LEXICON INC 60 TURNER ST WALTHAM 48024 313 477-5000 control equip MA 02154 617 891-6790 Minn 3M 3130 Lexington Ave S Eagen audio digital delay system; variable speed 55133 612 733-3300 MC CURDY RADIO INDUSTRIES 1051 tape recorder; speech compressor/expander Mo 3M 10725 Baur Blvd St Louis CLINTON ST BUFFALO NY VS 63166 314 991-1320 14206 716 854-6700 LINDSAY SPECIALTY PRODUCTS LTD 418 NJ 3M 15 Henderson Dr West Caldwell audio consoles; audio distribution, line & CAREDEAN DR HORSHAM PA 07006 201 227-9100 preamplifiers; audio controls & attenuators; 19044 215 674-5510 NY 3M 330 Greene St Buffalo audio processing units; intercom systems; CATV headend antennas; cable connectors; 14240 716 894-5214 patch panels; turntables, pickup arms; trunk & distribution amplifiers; distribution . NC 3M 2401 Brevard St, High Point monitor speakers; racks, cabinets, console accessories 27261 919-0141 assemblies; audio tape cartriges; complete Ohio 3M 12200 Brookpark Rd Cleveland studio installations VS LIPSNER-SMITH CORP 7334 N CLARK ST 44130 216 267-1800 CHICAGO ILL 60626 312 338-3040 Penn 3M 5698 Rising Sun Ave Philadelphia McGRAW-EDISON CO EDISON film inspection projectors; film, tape 19120 215 742-0200 ELECTRONICS DIV GRENIER FIELD ultrasonic cleaner VS Texas 3M 2121 Santa Anna Ave Dallas MANCHESTER NH 03103.... 603 669-0940 LISTEC TELEVISION EQUIPMENT CORP 75228 214 327-7311 audio line amplifiers, audio attenuators & 35 CAIN DR PLAINVIEW NY Wash 3M 100 Andover Park W Seattle potentiometers; intercom systems; rf 11803 516 694-8963 98188 206 244-7200 attenuators; field calibration meters, IM video camera heads, pedestals, tripods, DC 3M 1750 Pennsylvania Ave NW Suite 1100 distortion meters; rf watt meters;af & rf dollies; slide projectors; prompting devices; 20006 202 298-9200 signal generators; audio level meters VS tilting machines VS MAGNASYNC/MOVIOLA CORP 5539 McKAY DYMEK 675 N PARK AVE LONDON CO THE 811 SHARON DR RIVERTON AVE N HOLLYWOOD CA 91601 POMONA CA 91766 714 623-1581 CLEVELAND OH 44145 216 871-8900 213 877-2791 high fidelity AM receiver, shielded loop modulation meters film editing equip; field & studio tape antenna recorders VS LOWEL-LIGHT MANUFACTURING INC 421 W 54TH ST NEW YORK NY MAGNA -TECH ELECTRONIC CO INC 630 MC MARTIN INDUSTRIES INC 4500 S 10019 212 245-6744 NINTH AVE NEW YORK NY 76TH OMAHA NE 68127 402 331-2000 TV studio & location lights; light stands, 10036 212 586-7240 audio & TV consoles; audio mixers; line light accessories VS magnetic film recorder/players; synchronizers amplifiers; audio limiters; pa amplifiers; for magnetic film recorders & motion picture turntables, arms, intercom systems; rf LPB INC 520 LINCOLN HIGHWAY FRAZER film equip VS amplifiers; AM & FM transmitters; exciters; PA 19355 215 644-1123 remote control equip; remote pickup & STL; audio consoles, equip; control room MAGNAVOX CO CATV DIV 100 FAIRGROUNDS DR MANLIUS NY SCA equip.; FM antennas; antenna monitors; furniture; carrier current AM broadcast equip; frequency monitors; signal generators; 13104 315 682-9105 FM transmitters; audio processors VS modulation monitors; EBS two-tone equip VS See ad pg. 77-refer to rep/dist section CATV trunk & distribution amplifiers, See ads pgs. 18, 65, 90, 135-refer to rep/dist distribution passives, connectors, terminals, section LRC ELECTRONICS INC 901 SOUTH AVE accessories, converters VS Kan F Eckhoff 8123 Monrovia Shawnee HORSEHEADS NY 14845 607 739-3844 Mission 66216 913 888-0127 cable TV connectors; CATV distribution MAGNAVOX VIDEO SYSTEMS 1700 passives; cable tools & accessories VS MAGNAVOX WAY FT WAYNE IN MEDIATECH 824 BUSSE HIGHWAY 46804 219 482-4411 PARKRIDGE IL 60068 312 693-8366 L -W INTERNATIONAL 6416 VARIEL AVE studio & portable video color cameras; video tape -to -film transfer WOODLAND HILLS CA monitors, educational TV receivers VS continued on page 71

66 SEPTEMBER, 1975-BM/E In 1965, 3M introduced a quadruplex solo- drop- out compensator that has since become the standard of the industry. Today, all three networks and thousands of television stations across the country rely on 3/V. Brand color DOC's to bring viewers better picture quality. But what have we done for you lately? See us at Video Expo, booth 601

Watch 3M's Dicentenniol television series 'From Sea to Shining Seo:' Consult local listing for time and channel. VVe don't uit when

Introducing five new video products for broadcast, educational and industrial uses. Wecould have rested on our laurels after developing our quad color DOC. But we didn't. Instead, we've developed five new low-cost products to help you produce the very best professional -quality video with your existing equipment.

3M Mini Processing Amplifier This unit, designated P-50, has on important exclusive feature: A built-in pulse -cross generator with automatic brightening that allows the use of any inexpensive monitor to examine the critical head switch area for tracking and skew adjustments during on-line operation through an auxiliary monitor output. Other features include front panel controls for six video signal parameters; horizontal and vertical blanking generator for precise timing, plus a reconstituted sync system to allow stable operation with random interlaced video; operation with both color and monochrome inputs. Burst or chromes con be switched out to accommodate unacceptably noisy color recordings; and input clomping for excellent low frequency and 60 -cycle hum rejection. 3M Bridging Video Switcher 3M Color Bar and Sync Generator This is a broadcast -quality unit.Itis a highly - Now your studio can have a color reference sophisticated 10 -input switcher with momentary -contact for a surprisingly modest cost. This unit produces an illuminated buttons. There is an audio D. A. to eliminate NTSC 8 -bar pattern and all sync signals just like the very loading, and this unit also provides remote capability. expensive units used in professional broadcasting studios.

3M Digital Video AGC 3M Video Distribution Amplifiers This digital unit is a new concept. There is none This complete line of products suitable for any other like it.It can be used in any application where video application includes a Pulse D. A. that reforms sudden and undesirable signal level changes occur distorted incoming sync pulses, and if your application without incurring the unacceptable effects usually requires, will accept composite video and separate associated with AGC circuitry. There is no overshoot and distribute sync as needed. Then mate this unit with with large duty cycles. And calibration/setup issimple our Subcarrier D.A. that has fourindependently phase - and straightforward. Other important features include able outputs, and our totally reliable four -output a peak white or VIR referencesignal; fade -to -black Analog D.A. with cable equalization. recognition circuit for gain memory; selectable attack and release time; and a total AGC range of 15 db, with Turn the page for six more 3M unitygain under no -input conditions. Suitable for broadcast, industrial, educational and cable TV applications. professional -quality products. Quodruplex Color DC C The 3M dropout compensator is the industry Special Effects Generator and Program Switcher standard for broadcast VTR use. It replaces color dropouts This 3M SEG 672 performs verticalinterval in videotape recordings with the correct color video, program switching, dissolves and wipes between six avoiding the problems of other types of signal video inputs. The key and mat key feature can be used compensation. to produce many imaginative special effects. Joy -stick positioner. Many features of more expensive units.

Helical DC C and Processing Amplifier Dropout Profile Recorder Our 3M DP -100 is a complete video processing The DPR evaluates video dropout rate and system designed to clean up, correct and stabilize annoyance factor during normal on-line playback, and helical scan VTR signals for any VTR format. Corrects provides a permanent strip chart of the resulting profile. for high or low contrast, inaccurate or washed- The logical companion to the 3M dropout compensator. out colors, picture jump and roll.

.rammasissamassina -

Color Video Encoder Video Source Identifier This supplies a standard NTSC color signal from The VSI inserts a preselected, 8 -character either a three or four -channel camera source, and is identification code into any 525/625 composite video compatible with live color cameras and film chains. signal which appears on your picture monitors to help The resulting signal meets all applicable EIA and NTSC keep your switching straight and locate video path failures. specifications.

Attn: Bill Curtis, Mincom Division, 3M Company, We don't quit when we're ahead. 350 South Lewis Rd., Camarillo, Calif. 93010 Your dealer is: Please send me more detailed information, including technical specifications, about your video products. I am interested in applications.

Nome

Title

Address _- City VIDEO PRODUCTS

Store . Zip Phone number ( Mincom Division COMPANY Are,Code 3 350 SOUTH LEWIS RD. CAMARILLO, CALIF. 93010

B-105 M RM-V1DIN LAKELAND AVE BOHEMIA NY The VS designation following the THE SOURCE '75 11716 516 567-9620 description of a company's products modular audio components; modular line amplifiers, equalizers, compressor/limiters; indicates that the manufacturer verified to preamplifiers; power supplies, etc VS BM/E in July of 1975 that these products MEMOREX CORP 1200 MEMOREX DR SANTA CLARA CA 95052 .... 408 987-1169 See ad pg. 120-refer to rep/dist section are in regular production and data on the audiotape; audiotape accessories; videotape MODTEC producl/equipment is on file with BM/E. for all video record formats; videotape (See BROADCAST ELECTRONICS) VS helical video cassette players; editors for accessories MOHAWK WIRE CABLE CORP 9 MOHAWK VTR cassette players VS MERLIN ENGINEERING WORKS 1880 DR LEOMINSTER MA See ad pg. 16 01453 617 537-9961 EMBAR CADERO PALO ALTO CA broadcast color camera cables, connectors, NATIONWIDE ELECTRONIC SYSTEMS INC 94303 415 329-0198 accessories VS 1536 BRANDY PARKWAY STREAMWOOD rebuilt VTR machines, band color systems, IL 60103 316 289-8820 air systems MOLE-RICHARDSON CO 937 N digital stopwatch SYCAMORE AVE HOLLYWOOD CA MICMIX AUDIO PRODUCTS INC 9990 90038 213 851-0111 NEC AMERICA INC (NIPPON ELECTRIC MONROE DR SUITE 222 DALLAS TX TV, photo lighting equip; microphone booms, CO LTI:ip 277 PARK AVE NEW YORK NY 75220 214 352-3811 perambulators; mechanical special effects 10017 212 758-1666 reverberation units VS equip VS audio amplifiers, controls, processing equipment; consoles; intercoms; MICROFLECT CO INC 3575 25TH ST SE MONROE ELECTRONICS INC 100 HOUSEL microphones; patch panels; TV cameras; SALEM OR 97302 503 363-9267 AVE LYNDONVILLE NY telecine equip; switchers; video tape billboard -type passiverepeaters; 14098 716 765-2254 recorders; time base correctors; monitors, tower -mounted reflectors unattended phone answering devices, tone character generators; video distribution MICROTIME INC 1280 BLUE HILLS AVE signal generators, detectors, timers, systems, transmitter (AM, FM, TV); BLOOMFIELD CT 06002 203 242-4242 multi -frequency receivers VS antennas; microwave equip VS See ad pg. 80 time base correctors; velocity error NEFF ELECTRONICS INC 11511 correctors VS MOOG MUSIC INC PO BOX 131 MARYLAND AVE BELTSVILLE MD 20705 See ad pg. 106-refer to rep/dist section WILLIAMSVILLE NY 14221 716 633-2280 audio amplifiers; audio processing equip; Network of over 40 dealer/distributers throughout music synthesizers tape encoders; splicers; EBS the USA and Canada. Contact main office for name generator/detector EBS receiver of local outlet. MOSELEY ASSOCIATES INC 111 Calif. D.J. Sofie 7119 Pomela Dr. Canoga CASTILIAN DR GOLETA CA NEUMADE PRODUCTS CORP PO BOX 568 Park 91307 213 884-8025 93017 805 968-9621 SCARSDALE NY 10583 914 725-4900 NY Microtime 44 Railroad Ave Glenhead digital remote control systems; automatic storage & filing cabinets for tape reels, 11545 516 671-8025 loggers; microwave systems for remote cassettes VS PennD.C. Smith 1101 Dansville Rd pickup & STLs; rf amplifiers; SCA equip; Southampton 18966 215 355-6642 status & alarm indicators VS NEVE RUPERT INC BERKSHIRE IND See ad pg. 27 PARK BETHEL CT 06801 203 744-6230 MICRO-TRAK CORP 620 RACE ST audio consoles; audio amplifiers VS HOLYOKE MA 01040 413 536-3551 MOUNTAIN WEST ALARM 4215 N 16TH S See ad pg. 97 turntables, arms, pickups; pre -amps, PHOENIX AZ 85016 602 263-8831 Calif Rupert Neve 1800 N Highland Ave equalizers; monitor speakers; cartridge tape burglar & fire alarm systems Suite 614 Hollywood 213 465-4822 racks; studio furniture VS Can Rupert Neve of Canada 2717-19 Rena Rd MOXON INC SRC DIVISION 2222 Mallon Ont 416 677-6611 MICROTRAN CO INC 145 E MINEOLA AVE MICHELSON DR IRVINE CA VALLEY STREAM NY 92664 714 833-2000 NORTH AMERICAN PHILIPS CORP (SEE 11582 516 561-6050 CCTV cameras; surveillance TV cameras; AKG DIV & PHILIPS AUDIO VIDEO bulk tape erasers mobile vans; airborne microwave TV SYSTEMS) systems VS MICROWAVE ASSOCIATES INC 2ND NORTHWEST BROADCAST SYSTEMS BURLINGTON MA 01803 617 272-3000 MSI TELEVISION 4788 S STATE ST SALT 10035 NE SANDY BLVD PORTLAND OR 503 253-9363 microwave TV equip for STL; spurs; intercity LAKE CITY UT 84107 801 262-8475 97220 systems; air -to -ground microwave TV relay character genrators; weather, news, stock network cue decoder systems VS data systems; titling equip; data casting for NORTRONICS CO INC RECORDER CARE See ad pg. 115-refer to rep/dist. section CATV DIV 8101 TENTH AVE N MINNEAPOLIS Calif MA 850A Stewert Dr Sunnyvale MN 55427 612 545-0401 94086 206 232-3550 MU -DEL ELECTRONICS INC 2426 LINDEN magnetic tape recorder heads; tape erasers; Ga MA 175 W Wieuca Rd. N.E. Atlanta LA SILVER SPRING MD tape editors; test tapes; recorder care 30342 404 252-4311 20910 301 587-6087 accessories for audio & video machines; Mass MA South Avenue Burlington rf amplifiers; rf attenuators & multicouplers; VTR head cleaners VS 01803 617 272-3000 band-pass filters VS Mo MA 8800 Blue Ridge Blvd Kansas City NORVER CO INC 7300 N CRESCENT MULTIPLIER INDUSTRIES CORP 224 N BLVD PENNSAUKEN NJ 64138 816 763-5395 FIFTH AVE M VERNON NY Texas MA 4398 Shady Bend Dr Dallas 08110 609 665-2020 10550 914 699-0990 SCA receiver VS 75234 214 239-2893 vehicle, aerial bucket, lineman safety equip NOVA CORP BOX 2121 CANOGA PARK MICROWAVE POWER DEVICES INC MULTRONICS INC 12307 WASHINGTON CA 91306 ADAMS COURT PLAINVIEW NY AVE ROCKVILLE MD 20852 301 881-5774 videotape cleaner attachment for VTR 11803 516 433-1400 AM antennas; antenna phasing & branching microwave power amplifiers; if amplifiers VS networks; rf power indicators; contractors, NURAD IINC. 2165 DRUID PARK DR., BALTIMORE, MD 301-462-1700 MID -STATE COMMUNICATIONS INC 40 relays; fixed & variable rf indicators; antenna tuning assemblies; other accessories VS quad polarized antennas for remote -TV NORTH 7TH AVE BEECH GROVE IN VS 317 786-9537 broadcasts; microwave equip 46107 MYERS-OAK COMMUNICATIONS See ad pg. 137 frequency measurement equip; signal level CONSTRUCTION CORP CRYSTAL LAKE IL meters; installer's meters 60014 815 459-5000 0 MILLER-STEPHENSON CHEMICAL CO INC CATV system ccnstruction VS PO BOX 628 DANBURY CT 06810 203 743-4447 degreaser; head cleaner; contact cleaner VS N OAK COMMUNICATIONS GROUP OAK INDUSTRIES INC CRYSTAL LAKE IL MINNEAPOLIS MAGNETICS INC 8125 60014 815 459-5000 PLEASANT AVE SOUTH MINNEAPOLIS NAGRA MAGNETIC RECORDERS INC 19 converters; pay -TV devices; CATV amplifiers VS MN 55420 612 884-7393 W 44TH ST NEW YORK NY magnetic tape recorder heads, replacements 10036 212 661-8066 ODETICS 1859 S MANCHESTER AVE for leading recorder brands VS miniature reel-to-reel audio/cine recorders ANAHEIM CA 92802 714 530-6050 MINOLTA CORP 200 PARK AVE S NEW time elapse VTR 212 674-8525 NASCO TELEVISION SYSTEMS 947 YORK NY 10003 JANESVILLE AVE FORT ATKINSON WI OK MACHINE AND TOOL CORP 3455 TV crt color analyzer; light measurement 53538 414 563-2446 CONNER ST BRONX NY equip; color temperature meter video distribution equip; special effects units 10475 212 994-6600 MIRATEL DIV wire -wrapping equip; connector pressers; NATIONAL VIDEO CORP 840 W (See BALL BROS RESEARCH) pliers; wire cutters; strippers GLENOAKS BLVD GLENDALE CA MODULAR AUDIO PRODUCTS INC 1385 91202 213 244-3115 continued on page 72

SEPTEMBER, 1975-BM/E 71 PANDUIT CORP 17301 RIDGELAND AVE THE SOURCE '75 TINLEY PARK IL 60477 312 532-1800 nylon cable ties, accessories; plastic wiring duct; terminals wire -wrapping equip; connector pressers; pliers; wire cutters; strippers PAPERWORK SYSTEMS INC 2000 "A" ST BCGNER PO BOX 38 BELLINGHAM WA OLEAN CASE CORP 322 HOUGHTON AVE: 98225 206 733-8510 OLEAN NY 14760 716 372-0700 automated billing, accounting, traffic & TV vulcanized fibre & wood covered case for payroll systems VS audio & video equipment; film shipping VS See ad pg. 10 BROADCAST ONAN DIV ONAN CORP 1400 73RD AVE Toll free call 800 426-8872 NE MINNEAPOLIS MN PARASOUND (ORBAN) INC 680 BEACH S ANTENNAS 55432 612 574-5000 SAN FRANCISCO CA 94109 ... 415 776-2808 emergency stand-by power generators VS dynamic sibilance controller Low VHF OPAMP LABS INC 1033 N SYCAMORE PENTAGON INDUSTRIES INC 4751 N High VHF AVE LOS ANGELES CA OLCOTT CHICAGO IL 60656 312 90036 213 934-3566 867-9200 UHF production consoles; portable mixers; high-speed tape duplicators operational amplifiers; audio components; basic amplifier kits VS PERMADYNE ELECTRONICS CORP 2929 N SOUTHPORT AVE CHICAGO IL OPTIMA ENCLOSURES DIV 60667 312 525-5559 SCIENTIFIC-ATLANTA 2166 MOUNTAIN SCA receiver INDUSTRIAL BLVD TUCKER GA PHASECOM CORP 13130 S YUKON AVE 30084 404 939-6340 racks, equip enclosures HAWTHORNE CA 90250 213 973-4191 VS cable TV headend signal processors; rf ORANGE COUNTY CORP. 1079 modulators & demodulators; CATV AUTUMNWOOD DR WINNEPEG MANITOBA information systems VS R2J 106 CANADA 204 475-1026 PHELPS DODGE COMMUNICATIONS CO monitor amplifiers and speakers, audio RTE 79 MARLBORO NJ switchers, audio processors 07746 201 462-1880 ORBAN BROADCASTING 271 COLUMBIA FM antennas; transmission lines VS AVE SAN FRANCISCO PHILADELPHIA RESINS CORP 20 94133 415 421-3394 COMMERCE DR MONTGOMERYVILLE PA FM modulation controller 18936 215 855-8450 non-metallic antenna guys OTARI CORPORATION 981 INDUSTRIAL VS RD SAN CARLOS CA PHILIPS AUDIO VIDEO SYSTEMS 91 94070 415 593-1648 McKEE DR MAHWAH NJ reel-to-reel audio tape recorder/reproducers; 07430 201 529-3800 tape duplicators VS AUDIO & VIDEO DIVS audio amplifiers, audio consoles & mixers; headsets, intercom systems; microphones & microphone accessories; tape recorder/players, tape duplicators; turntables; column loudspeakers; CCTV cameras; video cassette recorder/players; mobile TV vans VS BROADCAST EQUIP DIV PACKAGED LIGHTING SERVICES INC PO studio & field TV color cameras. telecine chains BOX 285 WALDEN NY 12586 914 778-3515 PHILIPS TEST & MEASURING portable quartz lighting system for CCTV INSTRUMENTS INC 400 CROSSWAY PARK DR WOODBURY NY 11797 516 921-8880 PACIFIC RECORDERS & ENGINEERING color encoders; sync generators, color video CORP 1760 SORRENTO VALLEY RD SAN signal & pattern generators; pulse DIEGO CA 92121 714 453-3255 generators; video level meter, decoder, if variable -speed motor drive amplifier; generators; modulators; frequency counters, compressor/limiter; digital timing systems; audio generators; video test equip; custom audio consoles; preamps; line & multi -meters, oscilloscopes VS distribution amplifiers VS PLASTIC REEL CORP OF AMERICA 640 S PAILLARD INC 1900 LOWER ROAD COMMERCIAL AVE CARLSTADT NJ LINDEN NJ 07036 201 381-5600 07072 201 933-9125 Omnidirectional anddirectional,high 16 mm cameras/projectors reels for video & audio tape VS gain rugged slot and dipole arrays. PAKO CORP 6300 OLSON MEMORIAL PLASTOID CORP 42-61 24TH ST LONG Available in 9 standard horizontal pat- HWY MINNEAPOLIS MN ISLAND CITY NY 11101 212 786-6200 55418 612 540-6011 coaxial cable; direct burial coaxial cables; terns, choice of vertical patterns...with film processers moisture sealant coaxial cables power gainstoover 100 and power PALMER (WA) FILMS INC 611 HOWARD POLYLINE CORP 1241 RAND RD DES ratings of 3 KW, 10 KW, or 30 KW. ST SAN FRANCISCO CA PLAINES IL 60016 312 298-5300 HundredsofBogner Antennashave 94105 415 986-5961 plastic reels motion picture film projectors; color TV film beenproviding continuous servicein POTOMAC INSTRUMENTS INC 932 recorders (video to film transfer) VS urban and remote areas since 1965. PHILADELPHIA AVE SILVER SPRING MD 20910 301 589-3125 Write for free catalog and price list,in- PANASONIC VIDEO SYSTEMS MATSUSHITA ELECTRIC CORP OF AM antenna monitors; field strength meters; cluding all required electrical mechani- ONE PANASONIC WAY SECAUCUS NJ antenna impedance bridges; video & RF cal and structural data. 07094 201 348-7000 jack panels VS complete line of cameras color and mono See ad pg. 18-refer to rep/dist section (portable and studio); videotape recorders; POWER -OPTICS INC PO BOX 266 tape duplicators; studio equipment including FAIRVIEW VILLAGE PA telecines VS 19409 See ads pgs. 22, 23-refer to rep/dist section 215 539-5300 remote control systems for TV camera Ga PANASONIC 2 Meca Way Duluth BOGNER mounts VS 30136 404 448-5683 BROADCAST III PANASONIC 1098 Greenleaf Ave Elk PREFORMED LINE PRODUCTS CO PO Grove Village 60007 312 593-0710 BOX 91129 CLEVELAND OH Texas PANASONIC 2008 E Randol Mill Rd 44101 216 461-5200 EQUIPMENT Arlington 76011 817 469-1421 antenna tower accessories; preformed metal CORP. 156 Haven Ave. & plastic deadends, lashings, guywires, etc PANASONIC TECHNICS ONE PANASONIC VS Port Washington, N.Y. WAY SECAUCUS NJ 07094.. 201 348-7000 PRODELIN INC PO BOX 131 (516) 883-2811 turntables; audio components VS HIGHTSTOWN NJ 08520 609 448-2800 See ad pg. 35 continued on page 74 Circle 138 on Reader Service Card 72 SEPTEMBER, 1975-BM/E Fewer parts... fewer problemswith broadcast'cartridge

Ribs are molded into the flange No top wire. no pencil leads Reloading's easier. to break and jam.

Tape guide is an integral part of the cartridge base - not glued in - to insure accurate azimuth control.

Try one free In the broadcast cartridge world, the simplerthe your free sample and moreinformation on the better. That's why the design of the audiopak A-2 audiopak A-2 broadcast cartridge, write on your Prod- eliminates parts that can give you trouble. company letterhead to: Capitol Magnetic The lessons learned from our years of experi- ucts, Division of Capitol Records, Inc., 1750North ence developing the world'sleading 8 -track car- Vine St., Los Angeles, Calif. 90028. Attention: tridge have been applied to our audiopak A-2. The Marketing Manager, Professional Products. result is a more durable, more reliable broadcast cartridge. And because we manufacture the entire product-from tape to packaging-we can assure you of the highest possible qualitycontrol. CAPITOL MAGNETIC PRODUCTS A DIVISION OF CAPITOL RECORDS, INC rEMI We're so sure we have the best product on the Capitol® LOS ANGELES CALIFORNIA 90028 TM OF EMII IMITED market, we want to prove it... at no cost to you. For CRI A MEMBER OF THE EMI GROUP

Circle 139 on Reader Service Card 73 SEPTEMBER, 1975-BM/E THE SOURCE '75 The VS designation following the description of a company's products Finally... VHF & UHF antennas; flexible & rigid indicates that the manufacturer verified to transmission line; transmission line BM/E in July of 1975 that these products an EBS connectors; microwave antennas, reflectors are in regular production and data on the waveguides VS product/equipment is on file with BM/E. PROFIT RECOVERY SYSTEMS PO BOX 25 encoder/decoder LEICESTER NY 14481 716 382-3223 distribution amplifiers, preamplifiers, mic/line bleach regeneration system; silver recovery; amplifiers, monitor amplifiers; controllers; chemical recovery; pollution abatement cartridge & cassette loaders; consoles VS systems in a compact RAPID Q (See also GARRON) PROJECTION SYSTEMS INC 517 VAN See ad pg. 84 HOUTEN AVE PASSAIC NJ package at an 07055 201 473-0180 RAVEN SCREEN CORP 124 E 124TH ST TV projection systems (Amphicon) VS NEW YORK NY 10035 212 534-8408 front & rear projection screens affordable price! PSC TECHNOLOGY INC 1200 GRAND CENTRAL AVE GLENDALE CA RAYCHEM CORP 300 CONSTITUTION DR 91201 213 245-8424 MENLO PARK CA 94025 415 329-3333 Acme optical printers for super 8 & 16mm Thermofit sleeving & covers; waterproofing with special effects; flickerless projector VS products for cable plant; molded parts PULSE DYNAMICS MFG CORP PO BOX RAYTHEON DATA SYSTEMS 1415 355 COLCHESTER IL 62326 309 776-4544 PROVIDENCE TNPK NORWOOD MA remote broadcast originating consoles & 02062 617 762-6700 equip; portable public address systems; PA microwave communications equip loudspeakers VS RCA CORP BROADCAST SYSTEMS PYRAMID INDUSTRIES INC 2612 W FRONT & COOPER ST BLDG 2-5 CAMDEN ENCANTO BLVD PHOENIX AZ NJ 08102 609 963-8000 85009 602 269-2319 audio line, power, distribution amplifiers; coaxial cable; cable tools; cable connectors VS radio automation equip; consoles, mixers; automatic tape cartridge recorder/players, audio & video; headsets; intercom systems; microphones; patch panels; audio tape 0 recorder/players; tape erasers; turntables, arms, pickups; loudspeakers; video We've broken the price and size barrier Q -E MANUFACTURING CO NEW BERLIN automation equip; video color & mono with our new two-tone EBS-230. It's PA 17855 717 966-1017 cameras, studio & portable; ENG systems; priced at one-third less than some com- cable stringing blocks & aerial construction camera heads, mounts, dollies; quad VTRs petitive models and combines both encoder tools for coaxial cable character generators, chroma keyers, and decoder in a package that's half the drop -out compensators, color encoders; QRK ELECTRONIC PRODUCTS (DIV OF telecine chains; production & routing size of anything on the market. Check CCA) 1568 N SIERRA VISTA FRESNO CA switchers, pulse distribution amplifiers, these outstanding features: 93703 209 251-4213 processing amplifiers, sync generators, Low profile --1%" high x 19" wide, studio turntables; pre -amplifiers; audio special effect generators; videotape controls; consoles; tape decks; tape recorder/players; motion picture cameras, rack -mountable cartridge equip VS tripods, projectors, AM, FM & TV Versatile --program channel loop - See ads pgs. 136, 139 transmitters; modulators, demodulators, through standard diplexers, exciters; remote control, remote Output --three modes: balanced, QSI SYSTEMS INC 993 WATERTOWN ST pickup & STL links; rf amplifiers, loads, W NEWTON MA 02165 617 969-7118 switchers; SCA equip; AM, FM & TV unbalanced, floating video sequential switcOer, TV cameras Higher output level-- +12 dBm antennas; antenna towers & lighting; (mono); time elapses VTR; time date transmission line; antenna monitors, Adjustment controls for both tones, generator VS modulation monitors, field intensity meters, front panel accessible Q-TV/TELESYNC 342 W 40TH ST NEW audio generators; video picture monitors; Built-in step attenuator--0, 20 or 40 dB YORK NY 10018 212 695-2775 phase meters, sideband analyzers, rf watt Self -test feature TV prompter systems VS meters, mobile TV vans VS Meets all proposed FCC specifications See ad pg. 14-15 QUAD EIGHT ELECTRONICS CORP 11929 Ala RCA Office Park Bldg #.10 Office Park You're assured of quality and reliability VOSE ST N HOLLYWOOD CA Circle Birmingham 35223 ... 205 871-1155 when you buy the EBS-230. We've been 91605 213 769-1516 Calif RCA Suite 531 6363 Sunset Blvd in the "tone" business for more than a audio preamps, line & power amplifiers, Hollywood 90028 213461-9171 decade, and our advanced thick -film equalizers; audio controls; audio consoles & Calif RCA 330 Primrose Rd Suite 305 mixers; reverberation units; dB meters; noise Burlingame 94013 415343-2741 hybrid circuitry offers the ultimate in gates; audio digital delay unit; compressors; Colo RCA 2695 Alcott St Suite 231-S stability. attenuators; tone oscillators; cabinets, racks Denver 80211 303433-8484 Don't wait. The new FCC regulations on VS Fla RCA 2747 Art Museum Dr Suite 5 Jacksonville 32207 two-tone attention systems go into effect QUAKER ELECTRONICS INC PO BOX 215 904 398-4588 HUNLOCK CREEK PA Fla RCA 3900 RCA Blvd Palm Beach Gardens on January 15, 1976. Be ready for them 18621 717 256-3477 Bldg 110 West Palm Beach with the lowest -cost, smallest -profile and quartz crystals 33410 305622-1100 most versatile unit available --the Alpha Ga RCA 3395 NE Expressway 404455-3400 EBS-230. QUICK -SET INC 3650 WOODHEAD DR III RCA Gateway II Bldg Suite 1400120S NORTHBROOK IL 60062 312 498-0700 Riverside Plaza Chicago Alpha also offers a separate encoder with tripods; stands; mounts; dollies for TV VS 60606 312782-0700 remote capability and a decoder --the NC RCA 6230 Fairview Rd Suite 104 EBS-210 and EBS-220--at comparably Charlotte 28210 704 366-0626 low prices. R NJ RCA Front & Cooper Sts Bldg 2-2 Camden 08102 609 963-8000 Write or call us today for complete tech- NY RCA 1133 Ave of the Americas 3rd Fir nical specifications. RANK PRECISION IND INC 411 JARVIS New York 212 598-5900 AVE DES PLAINES IL Ohio RCA 11430 Hamilton Ave Cincinnati Like all other E BS equipment manufacturers, Alpha 60018 312 297-7720 45231 513 825-1550 IS awaiting FCC type acwptanal finalization. video camera lenses Pa RCA 761 N Washington Rd McMurray RADIANT CORP 8220 N AUSTIN MORTON 15317 412 941-5570 GROVE IL 60053 312 966-4200 Tex RCA 3909 Executive Ctr Dr Suite 213 front projection screen Austin 78731 512 345-2224 Tex RCA 8700 Stemmons Freeway Dallas &,\11111 RADIO CONSTRUCTION 1830 YORK RD 75247 214 638-6200 TIMMONIUM MD 21093 301 252-2880 Va RCA 1901 North Moore St Arlington Alpha Electronic Services, Inc. antenna towers; tower erection 22209 703 558-4212 8431 Monroe Ave., Stanton, CA 90680 RAMKO RESEARCH 3516-C LA GRANDE Wash RCA 408 Second Ave West Seattle 98119 206 285-2375 (714) 821-4400 BLVD SACRAMENTO CA 95823 916 392-2100 RCA/COMMUNITY TELEVISION SYSTEMS Circle 140 on Reader Service Card 74 SEPTEMBER, 1975-BM/E (EIE) 7355 FULTON AVE N HOLLYWOOD if your IV. Transmitter is not CA 91605 213 764-2411 distribution amplifiers, headend signal processors, modulators & demodulators; microwave for CATV VS approaching this performance RCA ELECTRONIC COMPONENTS NEW HOLLAND AVE LANCASTER PA 17604 717 397-7661 TV camera tubes, power tubes, display tubes; blank audio tapes; batteries, test instruments; digital display devices; CCTV cameras; receiving tubes; semi -conductors; TV picture tubes, instrument cathode-ray tubes VS RCA GLOBAL COMMUNICATIONS INC 60 BROAD ST NEW YORK NY 10004 212 363-3986 satellite communications service VS RCA SERVICE CO (RCA DIV) DEPT 1614 BLDG 203-3 COMMERCIAL PRODUCT SALES CAMDEN NJ 08101 609 779-5892 monitors (b&w/color), stands; FM -TV master antennas VS See ad on p. 79 R -COLUMBIA PRODUCT CO 2008 ST JOHNS AVE HIGHLAND PARK IL 60035 312 432-7915 self -powered electrostatic headphone RECORTEC INC 777 PALOMAR AVE SUNNYVALE CA 94086 408 735-8821 video tape evaluators; video tape conditioners; quad upgrade kits; videotape editors; audio tape cartridges VS See ad pg. 92, 93-ref to rep/dist section ...youneeda REDDING RADIO BOX 344 FAIRFIELD CT 06430 203 579-0284 microphone station identification plates; phone loop induction pickups REDIFFUSION INC 5 BROADWAY SAUGUS MA 01906 617 233-8600 switched (dial -a -program) & non switched rf Datatek 0101 distribution systems REGMO DATA CORP 6992 OXFORD ST MINNEAPOLIS MN 55426 612 925-3800 waveform corrector and time -code controlled sequencer; a/v tape head cleaner & anti -static disc spray (Kontakt Chem.) VS transmitter phase equalizer REK-O-KUT (See ORK) REPCO PRODUCTS 7400 STATE RD system PHILADELPHIA PA 19136 215 338-1110 CATV closures, for above & below ground RE -PLAY VIDEO CARTRIDGE SERVICE 315 THORNBERRY CT DR PITTSBURGH

PA 15237 412 486-1694 C" VS tetttt- reloaded quad VTR cartridges Ier e

REVOX CORP 155 MICHAEL DR SYOSSET ra NY 11791 516 364-1900 as, open -reel tape recorder/players; FM tuner preamps automatic remote control for tape .it:,!. -.-i.7 players (Lamb); head -sets (Beyer); microphones (Beyer); consoles & mixers Now used by many (Lamb); disc cleaners; studio lights (Meteor) VS leading stations REYNOLDS/LETERON CO 9830 SAN Other Advanced FERNANDO RD PACOIMA CA Datatek Products: 91331 213 889-5281 Unique features provide superior color TV titlers Differential Phase & Gain picture quality... REX RHEOSTATS CO INC 149 BABYLON Measuring TPKE ROOSEVELT NY Direct waveform correction by 11575 516 379-1030 Video Sweep incremental time method dummy loads to 2kW VS Generators Envelope Delay Phase and amplitude equalizing RF SYSTEMS INC 155 KIND ST Measuring Sets COHASSET MA 02025 617 383-1200 Corrects errors left by existing phase CATV antennas; yagis for channels 2-13; Video Waveform equalizers log periodic antennas; microwave equip, Equalizers translators, microwave antennas Removes smearing, streaking, antenna Video -Audio reflections RHG ELECTRONICS LABORATORY INC Routing Switchers 161 EAST INDUSTRY COURT DEER PARK Video, Audio On Air adjustments using VITS NY 11729 516 242-1100 & Pulse D.A.s microwave relay links including portable systems VS RICHMOND HILL LABORATORIES LTD 1240 ELLEMSMERE RD SCARBOROUGH ONTARIO CANADA DATATE K 1200 W. Ciestnut St. M1P 2X4 416 291-7921 CORP.. continued on page 76 AW Union, N.J. 07083 (201) 964-3656 Circle 141 on Reader Service Card SEPTEMBER, 1975-BM/E 75 PARK NORCROSS GA ROWE INTERNATIONAL INC CUSTOM THE SOURCE '75 30071 404 449-0873 MUSIC DIV 888 PROVIDENCE HWY audio preamps, line & power amplifiers; DEDHAM MA 02026 617 326-4446 automation equip; chroma keyers; video audio attenuators; audio test sets; all automated tape cartridge equip; background processing amplifiers; video production & foregoing in modular form VS music systems; background music programs routing switchers; pulse & distribution See ad pg. 103 VS amplifiers; sync generators; special effects ROHDE & SCHWARZ SALES CO (USA) RUPERT NEVE INC (See NEVE) generators VS INC 14 GLORIA LANE FAIRFIELD NJ RUSSCO ELECTRONICS MFG INC 1070 RMS ELECTRONICS 50 ANTIN PLACE 07006 201 575-0750 BROOKHAVEN DR CLOVIS CA BRONX NY 10462 212 892-1000 demodulators; field intensity meters for AM, 93612 209 299-2167 coaxial cable passives, connectors, hardware FM TV; pf power meter; rubidium frequency compact audio consoles; audio amplifiers; standards; video test signal generators; VIT ROBINS INDUSTRIES CORP (SEE monitors; turntables; speakers VS distortion meter; waveform monitor, monitor See ad pg. 138 FAIRCHILD SOUND) receivers; sideband analyzers; TV translators RODELCO ELECTRONICS CORP 365A VS RUST CORP (SEE DATA LOGIC/RUST) COMAC RD DEER PARK NY ROHN MFG., DIV UNARCO IND INC PO RYAN F B MFG CO PO BOX 451 11729 516 643-5110 BOX 2000 PEORIA IL 61601.. 309 697-4400 CHARITON IA 50049 515 774-5981 TV & FM translators VS antenna tower builders & erectors; underground cable plows ROH CORPORATION 170 TECHNOLOGY microwave reflectors VS S

SADELCO INC 299 PARK AVE CHECK... WEEHAWKEN NJ 07087 201 866-0912 CATV test equip SAKI MAGNETICS INC 1649 12 ST SANTA El COMPARE... MONICA CA 90404 213 451-8611 magnetic tape heads VS SANSUI ELECTRONICS 55-11 QUEENS CONSIDER. .. BLVD WOODSIDE NY 11377 212 779-5300 does your audio console, or the 4 -channel stereo encoder; turntables; preamps; power amps; reverb units VS one you're talking about purchasing, Calif 333 W Gardena 90248 213 532-7670 have all these standard features: Ga 5675 Roswell Rd NE Atlanta 30342 III 3416 W Main St Skokie 60076 Texas 6350 LBJ Freeway Dallas 75240 SANYO ELECTRIC INC 1200 W ARTESIA BLVD COMPTON CA 90220 .. 213 537-5830 audio tape recorders; helical VTR5, video cassette players; TV cameras color & mono VS SAWYER INDUSTRIES INC 5649 PECK RD ARCADIA CA 91006 213 442-5981 CATV stand-by power supplies; uninterruptible power supplies VS AMPRO YOURS SCALA RADIO 1970 REPUBLIC AVE SAN YES NO YES NO LEANDRO CA 94577 415 351-3792 Every input channel equipped with preamp DD broadcast antennas 4 transformer coupled inputs per channel DO SC ELECTRONICS Remote start contacts on all high level inputs See Audiotronics DO Modular plug-in amplifiers gE OD SCHAFER ELECTRONICS CORP 75 2 location cue/intercom system with remote CASTILIAN DR GOLETA CA 93017 805 968-0755 talkback g0 DE radio automation equip; multicart machines, 4 selectable monitor inputs 010 automatic logging equip, open -reel tape 4 programmable speaker muting outputs machines. Also handles the following lines: RD DO Andrews, Ampro, AKG, Audiopak, Belar, Step type faders with cue on all channels g0 ED Beyer, Broadcast Electronics, CBS 15 watt rms protected monitor amp DD Electronics, Delta, Dielectric Labs, Dorrough, 4 selectable headphone inputs plus stereo cue Fidelipac, Garron, Hughey & Phillips, ITC, RE DE Jampro, JBL, Inovonics, Kintronics, LPB, + 18dBm transformer coupled outputs gill OD Luxo, Marti, McMartin, Multronics, Phelps Telephone grade lever keys Dodge, Potomac, QRK, Revox, Rohm, RD DE Scully, Sony, Spir-o-line, Stainless, Sintronic, Shielded PC board mixing bus for extra RF Shively, Stanton, TFT, UREI, Utility, UMC, immunity yin ED Wilkinson VS Engraved panel markings See ad pg. 100-refer to rep/dist section ME LIE Calif Chester Coleman 75 Castilian Dr Extra cost hidden options DE DE Goleta 93017 805 968-0755 High purchase price Colo Communications West Inc Dick Maynard PO Box 1193 2 Parkwood Plaza Grand Ampro audio consoles are available in 6, 8, 10 and 12 Junction 81501 303 243-5373 channel rotary or slide fader versions in mono, dual mono, Fla Gordon Lund 510 Belair Ave Merrit stereo or dual stereo/simulcast configurations. Island 32592 305 452-6950 Priced from $1,995.00 to $5,275.00. Mass Ron Dagenais 42 Main St Leominster 01453 617 534-0441 Ampro also produces a comprehensive line of broadcast Penn George Pupala 401 Carver Dr tape cartridge equipment. For complete details, Bethlehem 18017 215 691-8574 call collect today or write. Texas Tom Copeland 10523 Maplegrove Dallas 75218 214 328-4944 Wisc Bud Thomas PO Box 87 Butte des Morts 54927 414 582-4121 AMPRO CORPORATION SCHAFER INTERNATIONAL 1355 HARBOR 850 PENNSYLVANIA BLVD., FEASTERVILLE, PA 19041 (215) 322-5100 DR SAN DIEGO CA 92101 .... 714 236-1200 Professional Equipment for Broadcasting Professionals cassette players for broadcast SCHNEIDER CORP OF AMERICA 154 LODI ST HACKENSACK NJ 07601 201 343-3939 See us at Booth #1, NAFMB, Atlanta video camera lenses; motion picture cameras Circle 142 on Reader Service Card

SEPTEMBER, 1975-BM/E lenses; lens accessories SCIENTIFIC-ATLANTA INC BOX 13654 ATLANTA GA 30324 404 938-2930 The seventeen CATVtv systems; headend modulators, demodulators, signal processors; satellite ground stations; microwave antennas; and one-halfpound transmission line,CATVtrunk, distribution amplifiers;CATVantennas; cabinets, racks L J SCOTT HH INC 111 POWDERMILLRD t MAYNARD MA 01754 617 897-8801 loudspeakers; digitalFMtuner VS SCOTT INSTRUMENTS LABORATORIES 533 MAIN ST ACTON MA 01720 617 263-2986 Quartz sound level meters VS L J SCULLY MANUFACTURING CORP 138 Location HURD AVE BRIDGEPORT CT 06604 203 368-2332 tape deck reproducers SCULLY/METROTECH (DIV OF Lighting DICTAPHONE) 475 ELLIS ST MOUNTAIN VIEW CA 94043 415 968-8389 tape recorders/payers (reel-to-reel),potable, Kit studio); playback equip for automation;time code for loggers; loggers; underground cable The CAT -KIT is ideal The CAT -KIT, which weighs only locators VS for CATV and for all 17 lbs., 8 oz., includes: three non - broads); SENCORE INC 3200 SENCORE DR SIOUX on -location filming focusing fill lights (miniature FALLS SD 57107 605 339-0100 three 10 ft. long three -wire cables field strength meters; sweep generators for requiring an extremely VHF, UFH, FM,& chroma; field effect (with in -line switches and parallel AM/FM compact and ultra - meters; dual -trace oscilloscopes; lightweight lighting kit. blade U -ground plugs); three "POP" stereo analyzer light stands (made of aluminum);and SENNHEISER ELECTRONIC CORP 10 W For further information, please write to_ measuring 37TH ST NEW YORK NY a sturdy carrying case, 10018 212 239-0190 only 53/4" x 91/2 " x 27". microphones, headsets VS cinema products The CAT -KIT operates at SEQUERRA CO 143-11 ARCHER AVE 120 -volts AC/DC with 212 297-5000 NEW YORK NY 11435 2037 Granville Avenue. Los Angeles California 90025 650 -watt double -ended FMbroadcast monitor tuner; audio preamp Telephone (213)478-0711 Telex 69-1339 Cable. Cinedevco & power amplifier VS quartz lamps. SESCOM INC 12931 BUDLONG AVE GARDENA CA 90247 213 770-3510 Circle 143 on Reader Service Card audio amplifiers; audio equalizers VS SHARP ELECTRONICS CORP 10 KEYSTONE PLACE PARAMUS NJ 07652 201 265-5600 headsets; tape decks; video cameras; picture monitors; sync generators; waveform monitors; phase shifters SHIBADEN (See HITACHI SCHIBADEN) SHINTRON CO INC 144 ROGERS ST CAMBRIDGE MA 02142 617 491-8700 video consoles, special effects generators, sync generators, video & audio distribution amplifiers, sequential video switchers VS See ad pg. 111 Calif Shintron 1234 Uppinham Dr Thousand Oaks 91360 805 492-5422 SIMPAC INTERNATIONAL INC 369 SAN MIGUEL DR SUITE 365 NEWPORTBEACH LPB's ce mini -studio systems come com- CA 92660 717644-6857 plete and ready for on -air, recordingstudio storage systems for racks or remote operation.Every system is tops in SHIVELY LABS INC RAYMOND ME value ... unmatched even by higherpriced 04071 207 655-3844 broadcast antennas; transmission line; filters, systems! Included are: rf loads; coaxial switches, power combiners Console. SHURE BROTHERS INC 222 HARTREY 2 Professional 3-speed 12 -inch AVE EVANSTON IL 60204 312 679-5830 Turntables. microphones, microphone accessories; audio mixers & preamplifiers; feedback controllers; 2 12 -inch Tone Arms. phono pickup cartridges; audio level 2 Stanton Cartridgeswith styli. controllerrs; p.a. systems; column speakers; Equalizer/Preamplifier ... 2 for stereo. audio consoles; compressor/limiters; reverb Turntable units VS There's a full range of complete systems tochoose from ... See ad pg. 85 each with sturdy, handsome, whiteFormica° top furniture SIEMENS CORP 186 WOOD AVE S ISELIN over blue textured finishsteel legs and supports. NJ 08830 201 494-1000 LPB offers a complete line ofbroadcast audio equipment. gas -filled surge voltage lightningprotectors Call or write us for all your audioneeds, from mike stands for cable amplifiers & powers supplies to headphones. SIMPSON ELECTRIC CO 853 DUNBEE AVE ELGIN IL 60120 312 697-2260 Please see us at analog & digital voltmeters & multimeters; LPB Inc. VS Booths # 91 & 92 oscilloscopes Lincoln Highway, Frazer, Pa.19355 520 NAFMB, Atlanta SINGER EDUCATION SYSTEMS 3750 LPB (215) 644-1123 continues on page 78 Circle 144 on Reader Service Card 77 SEPTEMBER, 1975-BM/E & mixers; microphones & microphone THE SOURCE '75 accessories; tape cartridge recorder/players; tape erasers; turntables; arms, monitor FIDELIPAC® speakers; AM & FM transmitters; diplexers, MONROE AVE ROCHESTER NY exciters; remote control equip; remote 14603 716 586-2000 pickup & STL systems; SCA equip; FM ACCESSORIES 16mm TV projectors antennas, antenna towers, lights; transmission lines, antenna monitors; field & CARTRIDGES SINGER INSTRUMENTATION 5340 ALLA intensity meters, frequency counters, signal RD LOS ANGELES CA generators, distortion meters, modulation 90066 213 822-3061 monitors; status & alarm indicators, loggers; field intensity meters, test equip VS cabinets, cable, connectors VS CART -A -ROUND SINTRONIC CORP 705 HAVERFORD RD CARTRIDGE BRYN MAWR PA 19010 215 525-3700 SPECTRA SONICS 770 WALL AVE OGDEN UT 84404 STORAGE RACKS am & fm broadcast transmitters; exciters; 801 392-7531 line surge protectors VS audio consoles; audio preamplifiers; line, Each WR-25 Modular mixing, power amplifiers; Rack holds 25 Type A SITCO ANTENNA CO 10330 NE MARX ST compressor/limiters; variable equalizers, Cartridges ... eight PORTLAND OR 97220 503 253-2000 electronic crossover filters; audio attenuators can be mounted on cable tv antennas; antenna preamplifiers; & accessories VS our Mobile Carousel antenna towers & accessories; wired cable; See ad pg. 137 Base to make up connectors VS Calif 6430 Sunset Blvd Suite 1117 the MR -200. Hollywood 90028 213 461-4321 WR-25 $13.25 SKIRPAN LIGHTING CONTROL CORP MR -200 $145.95 41-43 24TH ST LONG ISLAND CITY NY SPECTRA -VISION CORP 1528 BELFIELD 11101 212 937-1444 AVE PHILA PA 19141 215 457-6500 studio lights, light systems, solid state videotape editing equip; videotape dimmers, light accessories duplication; origination equip & equip service SMITH -VICTOR CORP 301 N COLFAX ST SPECTROLAB SOUND POWER SYSTEMS GRIFFITH IN 46319 312 768-1025 12481 GLADSTONE AVE SYLMAR CA lighting systems VS 91342 213 365-4611 VS SOD -MASTER DIV JACOBSEN MFG CO solar power systems 3456 N WASH AVE MINNEAPOLIS MN SPINDLER & SAUPPE INC 13034 SATICOY 55412 612 529-9566 ST N HOLLYWOOD CA oscillating plows for cable burial 91605 213 764-1800 TABLE TOP SOLA ELECTRIC 1717 BUSSE RD ELK slide projection system for film chains VS CARTRIDGE RACK GROOVE VILLAGE IL SPIN PHYSICS INC 11633 SORRENTO 60007 Model TR-96 holds 312 439-2800 VALLEY RD SAN DIEGO CA 96 Type A cartridges, CATV power supplies; CATV transformers 92121 714 453-5410 Model TR-48 holds 48. SOLADYNE INTERNATIONAL INC 7455 videotape recorder/players; replacement heads for vtr's VS TR-96 $73.85 CONVOY CT SAN DIEGO CA TR-48 $38.55 92111 714 279-7872 STAINLESS INC THIRD STREET N WALES microwave communications equip PA 19454 215 699-4871 am antennas; antenna towers; tower lighting, SOLL INC 311 E 72 ST NEW YORK NY tower accessories VS 10021 212 249-2031 rf switching systems STANCIL-HOFFMAN CORP 921 N SONEX INTERNATIONAL 4001 WALAMEDA HIGHLAND AVE HOLLYWOOD CA BLVD BURBANK CA 91505 213 843-7487 90038 213 464-7461 magnetic tape recorder/players; digital chroma keyers; luminance keyers VS clocks; digital time recorders for magnetic SONTEC CORPORATION 10120 MARBLE recorders VS COURT COCKEYSVILLE MD 21030 STANDARD ELECTRIC TIME 89 LOGAN 301 628-2282 ST SPRINGFIELD MA STUDIO ON AIR LIGHT audio line amplifiers, preamps; audio 01101 413 732-1141 brilliant red lettering on jet black background limiter/compressors; equalizers VS can be seen even in the brightest ambient electronic master clocks light conditions. $29.95 SONY CORP OF AMERICA 9 W 57TH ST NEW YORK NY 10019 212 371-5800 STANDARD TAPE LABORATORY INC 2081 video cassettes, video cassette EDISON AVE SAN LEANDRO CA recorder/players; videotape recorder/players; 94577 415 635-3805 audio preamps & power amplifiers; quad audio test tapes VS CART -E -RASE matrix equip; headsets; microphones; audio STANTON MAGNETICS INC 175 TERMINAL DEMAGNETIZER tape; audio cars & cassettes; tape DR PLAINVIEW NY 11805 516 681-0200 can be used for erasing accessories; audio tape recorders; stereo phono pickups; headphones; cartridges, reel-to-reel turntables; phono cartridges; video cameras; turntables, arms; turntable preamp/equaller tape, film sound video switchers; sync generators; special See ad pg. 34-refer to rep/dist section VS stripping, etc. $34.50 effects generators; videotape editing equip VS STOREEL CORP PO BOX 80523 ATLANTA See ad Cover II GA 30341 404 458-32289 Calif 230 W Hill Place Crocker Ind Park cabinets & racks for equip; storage racks & Brisbane 94005 415467-4900 enclosures for tape reels VS 700 W Artesia Blvd Compton STRAND CENTURY INC 20 BUSHES LANE 90220 213537-4300 ELMWOOD PARK NJ 07407 .. 201 791-7000 Ga 20 Perimeter Park Suite 109 Atlanta TV lighting equip; lighting controls, stands, 30341 404451-7501 filters, accessories VS III 6801 W Jarvis St Niles See ad pg. 00 ALIGNMENT 60648 312792-3600 PROBLEM? Md 1358 Holton Lane Langley Park WILLI STUDEL AMERICA INC 3916 Keep your cart equipment 20783 301439-3500 BROADWAY BUFFALO NY in perfect working order with: Mich 10610 Galaxie Ave Ferndale 14227 716 681-5450 48220 313548-9325 audio tape recorder/players; audio consoles; 350 STA Alignment Cartridge $38.50 condenser microphones 350 STF Wow and Flutter Cartridge $24.50 NY 47-47 Van Dam St Long Island City 350 STO Cue Test Cartridge $35.00 11101 212361-6600 STUDIO FILM EXCHANGE 366 W 46TH ST Head Insertion Gage $3.35 Texas 9004 Ambassador Row Dallas NEW YORK NY 10036 212 265-3740 Height Gage $12.95 75247 214631-3431 film stock at reduced prices VS Right Angle Zenith Gage $21.75 SOUND TECHNOLOGY 1400 DELL AVE Contact your FidelipacDistributoror STUDIO TAPE EXCHANGE 366 W46TH ST CAMPBELL CA 95008 408 378-6540 NEW YORK NY 10036 212 265-3740 audio generators; rf generators; harmonic reconditioned video tape VS distortion meters VS See ad pg. 132 FIDELIPAC® SPARTA ELECTRONICS CORP 5851 SUMMIT SYSTEMS INC 171 W r FLORIN-PERKINS RD SACRAMENTO CA ORANGETHORPE AVE PLACENTIA CA 109 Gaither Drive, Mt. Laurel, NJ 08057 916 383-5353 (609) 235-3511 92828 92670 714 528-0700 radio automation systems; audio amplifiers, automated videotape systems; video Trademark audio cartridges, cassettes; audio consoles cartridge -cassette equip Circle 145 on Reader Service Card SEPTEMBER, 1975-BM/E SUPERSCOPE INC 8150 VINELAND AVE SUN VALLEY CA 91352 213 767-9750 LENCO Sony tape recorders; microphones; tape; tape accessories VS THE NAME THAT MEANS See ad pg. 117 Ariz Superscope SW 15234 N. 51st Dr Glendale 85301 602 938-4820 ill Superscope Chicago 1300 Norwood Ave QUALITY Itasca 60143 312 569-2147 MassSuperscope NE 24 Cumings Park Woburn 01801 617 935-8250 Mich Superscope Detroit 591 Executive Dr. Troy 48084 313 588-7200 NY Superscope NY 56-08 37th Ave Woodside 11377 212 446-7227 Wash Superscope NW 12842 NE 15th Place Bellevue 98005 206 454-5162

SYSTEMS WIRE AND CABLE INC 3500 S FOR: 30TH ST PHOENIX AZ VIDEO TEST GENERATORS 85040 602 268-8744 CATV coaxial line & drop cables; interconnection cables; special cable GEN - LOC SYNC GENERATORS constructions NTSC ENCODERS SWR INC PO BOX 215 GOFFSTOWN NH 03045 603 497-3000 DISTRIBUTION AMPLIFIERS transmission line accessories; rf equip & service BLACK AND WHITE CAMERAS SYSTA-MATICS 510 N SHERIDAN TULSA, OK 74115 918-835-2368 Quality With Reliability At A Reasonable Price. automatic video cassette player system Lenco offers a two year warranty, parts and labor, including

SYSTEMS ENGINEERING CO PO BOX surface transportation to and from the factory. 49224 ATLANTA GA 30329 ... 404-633-7200 audio consoles, video consoles, modular line LENCO, INC., ELECTRONICS DIVISION amplifiers, equalizers, audio distribution amplifiers, power supplies 319 W. Main St., Jackson, Mo. 63755 (314) 243-3147 or (314) 243-2394 SYSTEMS MARKETING CORP 1019 W WASHINGTON ST BLOOMINGTON IL 61710 309 829-6373 Circle 146 on Reader Service Card radio automation equip; controllers, multicart machines, tape cartridge players; loggers; time/weather announcers; digital clock systems; audio amplifiers; audio generators VS Andnowthe weather... SYSTEMS RESOURCES CORP 223 NEWTOWN RD PLAINVIEW NY 11803 516 249-3018 character generators; video titling equip

SYSTRON-DONNER CORP 10 SYSTRON DR CONCORD CA 94518 415 676-5000 frequency counters; digital clocks; sweep generators; spedtrum analyzers; rf watt meters; time code generators; waveform analyzers, audio generators; digital multimeters; analog/keyboard computers; power supplies; frequency synthesizers VS

TABER MFG & ENG CO 2081 EDISON AVE SAN LEANDRO CA 94577 415 635-3831 replacement audio heads for VTR & audio RCA.Teleprinter, including recorder/players; test tapes; tape erasers VS Get your weather forecasts via a teleprinter from maintenance, on a lease basis - just $64 per month on 1 -year lease, slightly JOEL TALL-see ELPA MARKETING higher for 90 -day lease.Alsoavailable on outright purchase. TAPE-ATHON CORP 502 S ISIS AVE The teleprinter prints out the weather forecast automatically, and we make INGLEWOOD CA 90301 213 776-6933 sure it keeps running reliably. Maintenance is prescheduled and automatic. tape recorders/players (reel-to-reel); playback equip for automation, loggers, Installation and service are fast, becauseRCAdata communications specialists mono & stereo music service VS are based in over 140 cities, and our warehouse network is nationwide. The weather changes, butRCAreliability stays constant. TAPECASTER TCM PO BOX 662 12326 WILKINS AVE ROCKVILLE MD Call us at (609) 779-5087. 20851 301 881-8888 RCAService Company,ADivision ofRCA tape cartridge equip; digital timers; Technical Services, Bldg. 204-2, Camden, N.J. 08101 programmers; clocks; amplifiers continued on page 80 WE GIVE YOUMORE OF WHAT YOU'RELOOKINGFOR. Circle 147 on Reader Service Card

SEPTEMBER, 1975-BM/E 79 TECHNOLOGY INC HF PHOTO SYSTEMS Calif TKX 2339A Stanwell Circle Concord THE SOURCE '75 DIV 11801 W OLYMPIC BLVD LOS Calif 94520 415 687-8350 ANGELES CA 90064 213 479-3941 TKX 16601 Hale Avenue Irvine Calif 8-, 16-, 35mm film processors VS 92705 213 778-5225,6 TDK ELECTRONICS 755 EASTGATE BLVD TKX 6841 Convoy Court San Diego Calif GARDEN CITY NY 11530 516 746-0880 TEKTRONIX INC PO BOX 500 92111 714 292-7330 open reel, cartridge, cassette audio tape BEAVERTON OR TKX 3200 Coronado Dr. Santa Clara Calif 97007 503 644-0161 95051 408 249-5500 TEAC CORP OF AM 7733 TELEGRAPH RD oscilloscopes, video & picture monitors, TKX 16930 Sherman Way Van Nuys Calif MONTEBELLO CA 90640 213 726-0303 sideband analyzers, spectrum analyzers, 91406 213 987-2600 audio tape recorders/reproducers, waveform monitors, video test generators, Colo TKX 6801 S. Yosemite Street microphones, mixers VS sync generators, automatic video correctors, Englewood Colo 80110 303 771-8012 VTR equip, vectorscopes, monitor Conn TKX 20 Commerce Park Rd Milford TECH LABS INC BERGEN BLVD photometers video processing amplifiers; VS 06460 203 877-1494 PALISADES PARK NJ 07650201 See ads pgs. 19, 86 Fla TKX 1871 West Oakland Park Blvd. Fort 944-2221 field offices: Lauderdale Fla 33311 305 731-1220 audio controls, attenuators; program memory Ala TKX Suite 8, 3322 S. Memorial Parkway TKX Suite 109, 1040 Woodcock Rd. switchers video attenuators; volume and Huntsville, Ala 35801 205 881-2912 Orlando Fla 32803 305 894-3911 gain standard VS Ariz TKX 2643 E. University Drive Phoenix TKX 4900 Bayou Blvd. Suite 130 Pensacola See ad pg. 90 Ariz 85034 602 244-9795 Fla 32503 904 476-1897 Ga TKX Suite 3, 2251 Perimeter Park Atlanta Ga 30341 404 451-7241 III TKX 5350 Keystone Ct Rolling Meadows III 60008 312 259-7580 Ind TKX 6121 East 30th Street Indianapolis Ind 46219 317 546-2408 Kan TKX 8920 West 62 Terrace Kansas City/ Monroe Electronics' New Shawnee Mission Kan 66202 913 262-8770 La TKX 3004 34th Street New Orleans DUAL -TONE Metairie La 70001 504 837-8454 Md TKX 1526 York Road Baltimore/ Lutherville Md 21093 301 321-7000 TKX 1335 Piccard Drive Rockville Md EMERGENCY 20850 301 948-7151 Ma TKX 244 Second Avenue Waltham Ma 02154 617 890-4550 BROADCAST SYSTEMS Mich TKX 22132 West Nine Mile Road Detroit/Southfield Mich 48075 313 358-3122 Minn TKX 3563 N Lexington Ave St Paul MONITOR Minn 55112 612 484-8571 Mo TKX 422 Anglum Road, St. Louis/ Hazelwood Mo 63042 314 731-4696 NJ TKX 964 South Springfield Avenue Springfield NJ 07081 201 379-1670 NM TKX 1258 Ortiz Drive, S.E. Albuquerque NM 87108 505 268-3373 NY TKX 678 Troy Rd Albany/Latham NY 12110 518 785-3353 TKX 100 Crossways Park West Woodbury NY 11797 516 364-9060 TKX 31 Haight Ave Poughkeepsie NY 12603 914 454-7540 A TKX 77 Ridgeland Rd Rochester NY 14623 716 244-2600 POWER SUPPLY TKX 1 Northern Concourse North Syracuse AND TIMER NY 13212 315 455-6661 NC TKX 3725 National Drive Raleigh NC A 27612 919 782-5624 DUAL TONE Ohio TK4X526989 Pearl Road Cleveland Ohio 216 884-6558 A SIGNAL DETECTOR TKX 501 Progress Rd Dayton Ohio 45449 513 859-3681 WALL RELIABLE Okla TKX Suite 201 800 N.E. 63rd Oklahoma MOUNTED City Okla 73105 405 849-3361 ENCLOSURE SOLID STATE Ore TKX 8845 SW Center Court Tigard 97223 503 639-7691 TKX 501 Progress Road Dayton Ohio New System Designed To Meet New FCC Regulations 45449 513 859-3681 Dual Tone Input Built-in Audible Alarm Pa TKX 3834 Northern Pike Monroeville Pa Wide Dynamic Input Range Relay Closure Output 15146 412 351-3345 Immune to Voice and Music $298.00 Tx TKX 4455 Sigma Rd. Dallas Tx 75240 214 233-7791 This monitor is tailored to FCC regulations covering the new Dual Tone TK7X7573565 Bonhomme Houston Tx Alert system. The unit accepts a dual tone input from any radio receiveror 713 783-1910 audio cable and provides an audible alarm and relay closure output when TKX 3311 Roselawn San Antonio Texas activated. 78226 512 434-4334 The Monroe unit is housed in a metal cabinet suitable for wall or panel Utah TKX 65 West 2950 South Salt Lake mounting. Itis furnished complete with power cord and internal audible City Utah 84115 801 484-8501 alarm. Va TKX 1929 Coliseum Dr Hampton Va The EBS Monitor occupies 61/2" x 4" x 21/2", and weighs 2 pounds. Plug-in 23366 804 826-4020 circuit cards, and ready access to test terminals make servicing fast and Wa TKX 641 Industry Drive Seattle Wa effective. A one year full warranty is furnished by the manufacturer. Parts 98188 206 575-0180 availability and factory service exceeds 10 years. Phone or write for full details. TELAUTOGRAPH CORP 8700 BELLANCA AVE LOS ANGELES CA 90045 213 MD MONROE ELECTRONICS, INC. 776-5022 fasclmile equip TELECOMMUNICATIONS INDUSTRIES LTD 100 HOUSEL AVENUE, LYNDONVILLE, NEW YORK 14098 6335 HOMEWOOD AVE LOS ANGELES CA E 90028 213 461-3561 Area Code 716 765-2254 optical test pattern, charts, slides, films VS See ad pg. 140-refer to rep/dIst section continued on page 82 Circle 148 on Reader Service Card SEPTEMBER, 1 975-BM/E Instrumentation Precisionin Broadcast TerminalProducts The advantages of push-pull, cascode, and comple- TeleMation's Precision mentary symmetry circuits are exploited to provide low distortion, wide bandwidth, and high signal han- Line Terminal Equipment dling capability. Current -sourcing techniques are also employed as a means of minimizing distortion that otherwise can result from operating semiconduction junctions over wide current ranges. TeleMation engineers also have successfully coped with capacitor leakage (another source of long-term drift) in the precision series designs. Capacitors are either operated with minimum DC voltage drop or the effects of increased leakage with age are otherwise eliminated, as in the TVA -524 and TVA -525 video distribution amplifiers where the capacitance Within TeleMation's "525 Series" audio and videoof a small capacitor having extremely low leakage terminal product line, certain units are designatedcurrent is "amplified" by a high -gain op amp; the precision as distinguished from their broadcastresult-longer time constant, less tilt, and greatly im- counterparts. The precision designation is much more proved long-term stability. than a simple "marketing label". Precision is a demar- cation assigned through TeleMation R&D that puts aOur TVA -525 video distribution amplifier, whose particular product into a separate, unique attentionperformance characteristics are listed below, is a rep- category, from design concept through manufactureresentative application of the quality and stability and quality -assurance verification. All this to assurefactors inherent in the precision series product. the buyer that the product not only meets or surpasses all known competitive products in its performance TVA -525 PERFORMANCE SPECIFICATIONS parameters, but also that it is designed to operate for TYPICAL PUBLISHED months and even years without need for periodic Differential Phase @ 3.58 or 4.43MHz 0.12' 0.2° adjustment or any other routine maintenance. This Differential Gain @ 3.58 or 4.43MHz 0.11% 0.2% Frequency Response to 5.5MHz 0.05 dB 0.1 dB philosophy and practice, then, take the precision units Frequency Response to 10MHz 0.20dB 0.25dB in the 525 Series terminal equipment into a quality/ Hum and Noise 72dB 66dB stability/reliability realm that is usually associated Distortion, 50Hz Squarewave DC Mode .1% <.15% Distortion and Tilt, 50Hz with instrumentation electronics. Squarewave AC Mode .20% <.25% Output return loss @ 5.5 MHz 38dB 35dB TeleMation has used a number of design techniques Input return loss @ 5.5 MHz 43dB 40dB in accomplishing the high performance and stabilityBounce and Overshoot DC Mode 1% achieved by these products. For example, one -percent - Bounce, AG Mode (Monotonic) 8 sec. 5 sec. Overshoot, AC Mode None None tolerance resistors having a temperature coefficient K Factor .25% 0.5% of 2OPPM/ °C are generally used as gain -determining Input Offset Compensation Range >3VDC >2VDC Common Mode Rejection, 60Hz >70dB >60dB elements and wherever drift would affect stability. Common Mode Rejection, 5MHz >43dB >40dB They provide both freedom from temperature drift and freedom from the effects of aging that are common to the less expensive resistors normallyused inA functional schematic of this amplifier along with video products. Junction matching - each PN junc-a product description is available on request.We tion being matched with an NP junction to cancel thesuggest you compare this circuit to that of any com- characteristic 2.2mvi°C drift of silicon junctions - ispetitive product. We feel you will agree that the sta- also employed to improve stability and prevent offsetbility and long-term quality performance intrinsic drift in DC -coupled outputs. to our precision design will justify whateversmall additional initial cost might be involved through Feedback is extensively used in precision grade unitsincluding such quality electronic devices in your as a means of insulating performancecharacteristicsbroadcast system. from the effects of component variables. Audio amplifiers are typically high -gain op -amps inside 100 -dB feedback loops, while video amplifiers are typically transistor pairs inside 40 -dB feedback loops. In these applications, a 2:1 change in the gain characteristic TeleMation of any active component will have negligible effects riaP 0 BOX 15063. SALT LAKE CITY, UTAH 84115 on overall circuit performance. (801) 487-5399, TELEX: 388-352

Circle 149 on Reader Service Card THE SOURCE '75

TELEDYNE BIG BEAM 290 EAST PRAIRIE CRYSTAL LAKE IL 60014 815 459-6100 emergency lighting TELEDYNE CAMERA SYSTEMS 131 N FIFTH AVE ARCADIA CA 91006 213 359-6691 video film recording systems TELEDYNE ENERGY SYSTEMS 110 W TIMONIUM RD TIMONIUM MD 21093 301 252-8220 power supplies for remote applications VS TELE-CINE INC 294 E SHORE DR MASSAPEQUA NY 11719 516 798-2828 motorized pan & tilt heads; pan heads; tripods; pedestals; motorized lenses; camera housings; remote camera control systems TELEMATION INC PO BOX 15068 SALT LAKE CITY UT 84115 801 487-5399 TV cameras mono; TV film cameras; telecine chains; character gens; encoders, sync gens; routing switchers; source identifiers, frame synchronizers, VTR5, helical (cassettes); audio consoles, processing amplifiers; pulse & distribution amplifiers; special effects generator; video cassette units; colorizers; TV event display system VS See ad on pg. 81-refer to rep/dist section Calif TM 375 Beach Rd Burlingame 94010 415 348-3322 III TM Koenig & Strey Center 1948-B Lehigh Rd Glenview 60025 312 729-5210 Mass D'Lefebve 19 Francine Dr Holliston 01746 617 429-5858 TELE-MEASUREMENTS INC 145 MIAN AVE CLIFTON NJ 07014 201 473-8822 test slide projectors; test slides for b/w & color camera alignment WITH TELEMEDIA ELECTRONICS 1548 W WINTON HAYWOOD CA 94545 415 783-3311 30 DB NOISE REDUCTION AND automatic videocassette playback equipment; tone generators; digital clock VS TELEMET 185 DIXON AVE AMITYVILLE 10 DB EXTRA HEADROOM NY 11701 516 842-2300 multiburst, stairstep, window, waveform generators; video distribution amplifiers; With dbx Model 142 noise reduction in the rack, you can: envelope delay measuring equip; VITS keyers; video switching systems; TV Nearly double the usable signal-to-noise ratio of your cartridge chain, studio demodulators cable TV modulator & master recorder, line and program amps, full -frequency land lines, and micro- demodulators; chroma keyers; image enhancers; video processing amplifiers; TV wave links. test equip; audio monitors VS Make original tapes completely free of hiss or background noise on open reel, See ad pg. 17-refer to rep/dist section Calif TEL P.O. Box 2443 Riverside cartridge, or cassette format. 92506 714 683-0641 Duplicate tape through three or more generations without audible noise build-up. Robert B. Daines 1261 Lel Curtola Walnut Creek 94595 415 938-8887 dbx noise reduction linearly compresses audio signals by a 2:1 ratio at the front NY TEL Easthill RFD #3 Brewster end and produces an exact mirror image 1:2 expansion at the terminous of the 10509 914 279-3231 Ohio TEL 12992 Cedar Rd Cleveland Heights audio chain. 44118 216 321-7523 True RMS level sensing circuitry insures perfect encode/decode tracking Tex TEL 13620 Littlecrest Dr Dallas over a dynamic range well in excess of 100 dB irrespective of phase shifts in the 75234 214 241-0928 SOUTHEASTERN REGION call 516 transmission or storage medium. There is no breathing, pumping, or other colora- 842-2300 tion of the sound with dbx noise reduction, and there are no pilot tones or calibra- TELEPHONICS 770 PARK AVE tion levels to worry about HUNTINGTON NY 11743 516 549-6000 cordless stereo headphones dbx Model 142 provides two channels of broad -band audio noise reduction in excess of 30 dB coupled with an additional 10 dB increase in headroom TELESTRATOR INDUSTRIES INC 166 E SUPERIOR ST CHICAGO IL for all components and lines included within the noise reduction loop. 60611 312 943-1200 For complete product information and list of demonstrating dbx dealers, electronic video graphic systems circle reader service number or contact: TELEVISION EQUIPMENT ASSOCIATES BOX 1391 BAYVILLE NY 11709 516 628-8068 communications headsets; intercom systems; video-tape cleaners; video delay lines; video envelope correctors; color monitor comparator; video test slides Xdbx, Incorporated VS TELEVISION PRODUCTS CO INC 9016 296 Newton Street AVIATION BLVD INGLEWOOD CA Waltham, Mass. 02154 90301 213 776-3276 camera pedestals VS 617/899-8090 See ad pg. 114 Circle 150 on Reader Service Card SEPTEMBER, 1975-BM/E TELEVISION RESEARCH INTERNATIONAL INC 1003 ELWELL CT PALO ALTO CA 94303 415 961-7475 video tape editing equip TELEVISION TECHNOLOGY CORP 9150 BROOKVILLE RD SILVER SPRINGS MD PLC -4 Magazine 20910 301 565-0770 TV & FM translators; rf amplifiers VS TELEX COMMUNICATIONS INC 9600 The most advanced design ALDRICH AVE SO MINNEAPOLIS MN 55420 612 884-4061 headsets, tape recorder/players, tape in 16mm 400 ft. magazines. cartridge recorder/players, tape duplicators VS TELONIC ALTAIR PO BOX 277 LAGUNA BEACH CA 92652 714 494-9401 test instruments; rf attenuators; test equip for CATV; rf generators; impedance bridges; dB meters VS TENTEL 50 CURTNER AVE CAMBELL CA 95008 408 377-7588 magnetic tape tension guage VS See ad pg. 142 TERRACOM DIV OF CONIC CORP 9020 BALBOA AVE SAN DIEGO CA 714 278-4100 microwave equip VS TEXAS ELECTRONICS INC PO BOX 7225-INWOOD STATION DALLAS TX 75209 214 827-3033 meteorological (weather) monitoring equip TEXSCAN CORP 2446 N SHADELAND AVE INDIANAPOLIS IN 46219 317 357-8781 FEATURES: audio attenuators & switchers; coaxial attenuators & switchers; signal generators, The PLC -4 magazine is made of extremely lightweight, glass -filled sweep generators, oscilloscopes, spectrum Lexan®, a material with greater impact strength than magnesium. analyzers, impedance bridges, cable TV Hinged magazine doors provide quick access for fast loading and system analyzers, tunable filters, VHF/UHF tuner test equip, test accessories & unloading.

terminators VS Two thumb -activated latches on each magazine door guarantee TEXWIPE THE CO 51 PROSPECT PLACE positive safe closure. HILLSDALE NJ 07642 201 664-0555 Compartment -type magazine design permits the use of either 200 ft. cleaners for tape heads VS or 400 ft. darkroom cores or daylight -loading spools. THALNER ELECTRONIC LABS The relatively square configuration of the compartment makes it JACKSON RD ANN ARBOR MI 48103 313 761-4506 easy to remove a daylight -load spool. character generators; special effect Magazine may be fastened to the camera by conventional generators; pulse & distribution amplifiers; screwdown methods or the unique Cinema Products snap -latch sync generators VS technique. THERMODYNE INT. LTD 12600 YUKON AVE HAWTHORNE CA The molded plastic PLC -4 magazine completely eliminates the 90250 213 679-0411 problem of film spotting caused by particles of magnesium adhering reusable shipping & handling containers VS to the emulsion and then reacting in the developing bath. THETA-COM PO BOX 9728 PHOENIX AZ The PLC -4 magazine is extremely silent in operation. 85068 602 944-4411 CATV trunk, distribution amplifiers; distribution passives; head -end signal PLC -4 Magazine processors to other equip; microwave equip; shown mounted on a cross -mod analyzers; information display CP-16R Reflex camera systems VS THOMSON-CSF INC 75 ROCKEFELLER PL PLC -4 Magazine NEW YORK NY 10019 212 977-2200 shown mounted on video cameras; video discs; color flying spot an Auricon CineVoice scanner; flying spot telecine; camera Camera (400 ft. telecine chain; TV transmitters VS Conversion model). THOMSON-CSF LABORATORIES INC 37 BROWNHOUSE RD STAMFORD CT MAGAZINE 06902 213 327-7700 COMPATIBILITY audio distribution amplifiers; audio processing amplifiers; character generators; PLC -4 MAGAZINES ARE COMPATIBLE WITH ALL 16MM CAMERA SYSTEMS chroma keyers; color correctors; color WHICH ACCEPT STANDARD 400 FT. MITCHELL -TYPE MAGAZINES. encoders; telecine equipment; image enhancer; video processing amplifiers; pulse & distribution amplifiers; sync generators; For further information, please write to: video cameras; video test generators VS See ad pg. 21-refer to rep/dist section Midwestern Reg. Sales Office Mo 4233 Barcelos Dr St Louis Mo 63129 314 487-2450 TIME & FREQUENCY TECHNOLOGY INC 2037 Granville Avenue, Los Angeles, California 90025 3000 OLCOTT ST SANTA CLARA CA Telephone: (213) 478-0711 Telex* 69-1339 Cable: Cinedevco 95051 408 246-6365 digital clocks, master clocks; frequency counters; remote digital displays; frequency monitors; modulation monitors; SCA monitors; standard time & frequency continued on page 84 Circle 151 on Reader Service Card SEPTEMBER, 1975-BM/E 83 patch terminals; heavy duty THE SOURCE '75 plugs/connectors VS UNITED RECORDING ELEC IND (UREI) receivers; EBS receivers, EBS 11922 VALERIO ST N HOLLYWOOD CA A FILM [HAM encoders/decorders VS 91605 213 764-1500 See ad pg. 136-refer to rep/dist section audio consoles; amplifier & equalizer TIMES WIRE & CABLE CO 358 HALL AVE modules for audio consoles; WITHOUT compressor/limiters VS WALLINGFORD CT 06492 203 265-2361 See ad pg. 131-refer to rep/dist section A DEDICATED CAMERA CATV cable & wire TOCOM INC 3301 ROYALTY ROW IRVING UNITED RESEARCH LAB CORP 681 FIFTH TX 75062 214 438-7691 AVE NEW YORK, NY 10022 212 751-4660 CATV trunk, distribution amplifiers; head -end professional tape recorders; rebuilds of processors; connectors; distribution passives; Ampex, Scully, etc two-way cable communication systems VS UNITED PRESS INTL 220 E 42ND ST NEW YORK NY 10017 TOMCO COMMUNICATIONS INC. 2399 212 682-0400 CHARLESTON RD. MOUNTAIN VIEW, CA newswire service; cable newswire VS 94043 UNITED SYSTEMS CORP (MONSANTO) pre -amps, converters for CATV 918 WOODLEY RD DAYTON OH TOPAZ ELECTRONICS 3855 RUFFIN RD 45403 513 254-6251 SAN DIEGO CA 92123 714 279-0111 frequency counters, counter -timers; digital power supply converters, uninterruptible clocks; digital voltmeters; frequency powersystems, power isolators converters, frequency synthesizers; pulse, sine, square -wave generators; time base MOBILE MULTIPLEXER! TRACOR INC 6500 TRACOR LANE generators VS AUSTIN TX 78721 512 926-2800 U S PIONEER ELECTRONICS CORP 75 Save the high cost of an extra color camera automic, crystal frequency standards OXFORD DR MOONACHIE NJ Studio camera adapts to film chain TRANS -LUX CORP 625 MADISON AVE 17074 201 935-4300 use in seconds NEW YORK NY 10022 212 751-3110 tape recorders; head sets; microphones; rear projection screens stereo monitor receivers Use standard TV zoom lens VS VS Input: Two 35mm slide projectors in TRANSOUND INC 13733 GLEN OAKS UTILITY BODY CO 901 GILMAN ST dissolve mode plus 16mm or Super -8 BLVD SYLMAR CA 91342 213 367-6543 BERKELEY CA 94710 415 524-9333 electret condenser microphone VS aerial lifts VS Mobile Multiplexer saves studio space TREISE ENG INC 1941 FIRST ST SAN UTILITY PRODUCTS CO 6665 N 60 ST At S975.00, FERNANDO CA 91340 213 365-3124 MILWAUKEE WI 53223 414 353-1010 out performs units at twice the price! motion picture film processors; film cleaners buried cable closures VS For complete technical details --- VS UTILITY TOOL CORP TOWN ST E HADDA TREPAC CORP OF AMERICA 30 WEST Contact Buhl. CT 06423 203 873-8687 HAMILTON AVE ENGLEWOOD NJ hand & machine -powered tools for cable BUHL OPTICAL 07631 201 567-3810 preparation 1009 Beech An/emit. audio/video automatic line program alarm Plushurgh, Po15233 UTILITY TOWER CO PO BOX 12027 f,Phont. 417 321 00/5 TRI-EX TOWER CORP 7182 RASMUSSEN OKLAHOMA CITY OK AVE VISALIA CA 93277 209 732-8383 73112 405 946-5551 Circle 152 on Reader Service Card self-supporting, guyed towers; portable antennas & towers for AM, FM, TV & towers VS microwave VS TRIPLETT CORP 286 HARMON RD BLUFFTON OH 45817 419 358-5015 vu & dB meters; unimeters; voltmeters; RAPID -0` m multimeters VS V TROMPETER ELECTRONICS INC 8936 CART MACHINES COMANCHE AVE CHATSWORTH CA 91311 213 882-1020 VAMCO ENGINEERING BOX 7512 TULSA coax, twinax, triax cable patching equip; OK 74105 918 252-4142 coax, twinax switching matrices VS digital tape timers; clock systems; TUCKER ELECTRONICS CO PO BOX 1050 distribution amplifiers VS RQ 71 Series for all size cartridges GARLAND TX 75040 214 494-2326 VARIAN ASSOC ELECTRON DEVICE audio, rf test equip GROUP 611 HANSEN WAY PALO ALTO Custom 3000 Series for "A" size CA 94303 415 591-1710 power vacuum tubes; rf switches; sockets, cartridges klystrons; TWTs; microwave components; xenon lighting; cooling equip VS VARIAN/BERERLY MICRO -LINK PRODUCTS 8 SALEM ROAD BEVERLY MA ULTRA AUDIO PRODUCTS/PIXTEC BOX 01915 617 922-6000 921 BEVERLY HILLS CA ITFS & MDS microwave & systems; 90213 213 849-1433 microwave rf if components, assemblies & audio consoles; rewinders; video picture subsystems; exciters, modulators, TV monitors; videotape cleaners; prompters, translators VS titling equip; waveform monitors; pulse cross monitors, vectorscopes VS VEDCO INC 2320 N WOODLAWN AVE See ad pg. 132-refer to rep/dist section METAIRE LA 7001 504 885-9010 Record/Playback routing switchers; a/v distribution amplifiers UMC ELECTRONICS CO SENSTROL DIV Playback Only 460 SACKETT PT RD NORTH HAVEN CT VEGA ELECTRONICS 3000 W WARNER Single Units 06473 203 288-7731 AVE SANTA ANA CA 92704 714 540-0222 hysteresis synchrononous motors; splice wireless microphone systems; wireless Multiple Units finders; tape erasers VS microphone accessories VS Monaural UNIDYNE CORP (RADONIC DIV) 981 VICON INDUSTRIES 130 CENTRAL AVE Stereo SCOTT ST NORFOLK VA FARMINGDALE NY 516 293-2200 23513 804 855-1089 Automatc fast -forward standard business automation systems tor radio & 1 v VIDEO AIDS CORP OF COLORADO 112 W UNIMEDIA RTE 2 PO BOX 2574E AUBURN FOURTH ST LOVELAND CO 80537 303 667-3301 CA 95603 916 272-1971 GARRON ELECTRONICS, INC. video picture monitors; demodulators; sync generators; cross pulse generators; burst phase meter; monitors; videotape speaker amplifiers VS 1216 Kifer Road editors; intercom VS See ad pg. 24-refer to rep/diet section Sunnyvale, California 94086 See ad pg. 104 UNION CONNECTOR CO INC 149A (408) 736-8737 BABYLON TPK ROOSEVELT NY VIDEO CONCEPTS INC 3715 LOMITA 11575 516 623-7461 continued on page 87 Circle 153 on Reader Service Cara

SEPTEMBER, 1975-BM/E Hand-held hotline.

Finally there's a microphone that follows the news wherever it goes-to the end of a mile -long parade or to the center of a championship golf course. The new Shure SM82 super -rugged microphone-with its own built-in, line - level amplifier-is the long-distance hotline designed for broadcasting. Used with a telephone line or voice coupler, the SM82 becomes a complete remote amplifier/microphone with line -level output and a self-contained peak limiter to prevent overloading. All in the new Shure SM82, the long hotline for the short deadline. Shure Brothers Inc. 222 Hartrey Ave., Evanston, IL 60204 ASURE In Canada: A. C. Simmonds & Sons Limited Manufacturers of highfidelity components, microphones, sound systems and related circuitry. Circle 154 on Reader Service Card SEPTEMBER, 1975-BM/E 85 How flat is each input on yourconsole? What about distortion? Noise? Crosstalk?

Your answers to these and lots of other questions come easily with modern Spectrum Analysis. Quick- ly and effectively you can do your audio maintenance, testing and monitoring. Do your audio proofs of performance too, with a 5L4N Spectrum Analyzer and a few related instruments. Transmitter maintenance, antenna testing and rf proofs are easily handled with the 7L12 Spectrum Analyzer. Two new booklets describe FM/ AM broadcast measurements using the 5L4N and 7L12 Spectrum An- alyzers. Step-by-step instructions are included. Ask for your copies. Write: Tektronix, Inc., Box 500A, Beaverton, Oregon 97077. In Eu- rope, write: Tektronix Limited, P.O. Box 36, St. Peter Port, Guernsey, Channel Islands.

0 Send me a copy of AM Broadcast Measurements. El Send me a copy of FM Broadcast Measurements. 0 Have a Field Engineer contact me.

NAME

TITLE TEKTRONIX committed to technical excellence STATION OR COMPANY

ADDRESS PHONE

CITY STATE ZIP

Circle 155 on Reader Service Card

SEPTEMBER, 1975-BM/E The VS designation following the THE SOURCE '75 description of a company's products BLVD TORRANCE CA indicates that the manufacturer verified to 90505 213 373-8539 BM/E in July of 1975 that these products Get cross pulse generator; videotape editor; are in regular production and data on the digital clock timer; small video switcher VS product/equipment is on file with BM/E. VIDEO DATA SYSTEMS 657 OLD WILLETS abetter PATH HAUPPAUGE NY 11787 516 234-1010 character generators; TV titling & data w display systems VS VIDEOMAX CORP 154 SAN LAZARO AVE WARD BECK SYSTEMS LTD. 841 SUNNYVALE CA PROGRESS AVE SCARBOROUGH ONT Bang 94086 408 739-5391 M1H 2X4 416 438-6550 rebuilt video recording heads & headwheel audio consoles; modules; TV intercom VS assemblies VS See ad cover III see ad pg. 25-refer to rep/dist section WATERS MANUFACTURING INC for 7020 Delco Ave Canoga Park Calif LONGFELLOW CENTER WAYLAND MA 213 980-7927 91306 01778 617 358-2777 13708 Stoner Dr Silver Spring Md audio attenuators & controls, rotary & slide 20904 301 384-4733 yourbuck! NJ 552 Wyndham Rd Teaneck WAVETEK INDIANA INC 66 N FIRST AVE 07666 212 947-8031 BEECH GROVE IN 317 783-3221 VIDEO MEMORY CORP 3070 KENNETH ST 46107 CATV test equip; sweep/signal generators, SANTA CLARA CA 95050 .... 408 246-5820 rf detectors; function, signal, sweep broadcast quality helical VTR generators; oscilliscopes; phase meters; VIDEO SENTRY SYSTEMS 1080 RTE 46 transmission level test set; programmable Colortran. CLIFTON NJ 07013 201 777-7600 waveform synthesizers; test accessories VS video/audio TV program loggers WABASH TAPE CORP 2720 DES PLAINES THE VIDEO TAPE CO 4212 LANKERSHIM AVE DES PLAINES IL BLVD N HOLLYWOOD CA 213 985-1666 60018 312 298-8585 Pro -kitiv reprocessed videotape; videotape cleaning & helical -scan video magnetic tape; audio evaluation; tape accessories VS magnetic tape See ad pg. 132 WEAVER J A CO 8676 PENNEL DR ST VIDEOTEK INC 640 E VINE ST LOUIS MO 63114 314 997-5555 STOWE PA 215 582-2053 bonded copper ground rods, ground rod 9 -in color monitors VS clamps; jumper clamps VIDREEL INC 42 CENTRAL DR WIDE BAND ENGINEERING CO INC PO FARMINGDALE NY 11735 516 420-1470 BOX 21642 PHOENIX AZ plastic reels & boxes for video & audio tape 85036 602 254-1570 rf amplifiers, analyzers; impedance bridges; VIDTRONICS 855 N CAHUENGA BLVD directional couplers; power dividers VS HOLLYWOOD CA 90038 213 466-9741 WILKINSON film to tape transfer CHESTNUT ST TRAINER (CHESTNUT) PA VIF INTERNATIONAL BOX 1555 MT VIEW 19013 215 497-5100 CA 94042 408 739-9740 AM & FM broadcast transmitters; audio background music systems; automatic consoles; audio compressor/limiters; program intermix units; tape distribution amplifiers, equalizers, line recorder/players; tape heads; plug-in amplifiers; demodulators, exciters, rf amplifier adaptors for Ampex recorders; amplifiers; modulation & frequency monitors audio amp; video program timers VS see ad pg. 99-refer to rep/dist section VS VIKRON 4918 WEST 35TH ST WINEGARD CO 3000 KIRKWOOD ST MINNEAPOLIS MN 55416 612 927-7716 BURLINGTON IA 52601 319 753-0121 magnetic tape heads VS CATV antennas, accessories; home system amplifiers VINTEN See Listec WORLD VIDEO INC PO BOX 117 VISCOUNT INDUSTRIES LTD 105 E 69TH BOYERTOWN PA 19512 215 367-6055 AVE VANCOUVER BC broadcast & CCTV one -gun (Trinitron) color V5X-2W9 604 327 9446 monitors; demodulators VS video production switchers; pulse & See ad pg. 128-refer to rep/dist section distribution amplifiers; routing switchers; special effects generators; chroma keyersVS a see ad pg. 98-refer to rep/dist section X

VISUAL EDUCOM INC 4333 S OHIO ST XCELITE INC 118 BANK ST ORCHARD MICH CITY IN 46360 219 879-8311 PARK NY 14127 CCTV cameras; surveillance video cameras; complete wire stripping tools, hardware picture monitors, video switchers, distribution amplifiers; sync generators, special effects generators; tape duplicators; pulse amplifiers; wire & cable; connectors VISUAL ELECTRONICS CORP YARDNEY ELECTRIC CORP 82 MECHANIC 4 light kit (See Garron Inc) ST PAWCATUCK CT 02891.. 203 599-1100 VISUAL METHODS INC 5 WORTENDYKE silver, zinc & cadmium batteries; chargers, VS AVE MONTVALE NJ 07645 201 391-7383 high intensity lights TV surveillance cameras; camera lenses VS for VITAL INDUSTRIES INC 3700 NE 53RD z AVE GAINESVILLE FL 32601 904 378-1581 ZEI-MARK CORP PO BOX 182 TV automation equip; video processing BROOKFIELD CENTER CT 06805 amplifiers; video production & routing optical multiplexer; neutral density wheel; switchers; video & audio distribution 695. telecine film chain with preview; film chain amplifiers; pulse distribution amplifiers; adapters for 16 mm & super -8 mm film special effects generators; chroma keyers projectors VITEK ELECTRONICS INC 200 WOOD AVE ZOOMAR INC 55 SEA CLIFF AVE GLEN Berkey Colortran Bpptr,!,'plal MIDDLESEX NJ 08846 201 469-9400 COVE NY 11542 516 676-1900 CATV test equip optics; optical instruments 1015 Chestnut St. Burbank, Ca. 91502 213 843.1200 Circle 156 on Reader Service Card SEPTEMBER, 1975-BM/E 87 Sheffield 35660 205-383-3330 Line: video products AKAI see ad p 13 PROFESSIONAL REPS 804 Floral Ave. Opelika 205-745-2192 Line: audio and video products SIGNAL ENGINEERING & SALES P.O. Box 10167 Birmingham 35202 206-595-5855 Line: audio & video systems CVS see ad p 122 TeleMation see ad p 81 JESS SWICEGOOD P.O. Box 1741 Dothan 36302 205-794-7944 Line: audio equip; transmitters

ALASKA

HARRY J LANG & ASSOCS. 1406 W. 47th Ave. Anchorage 99501 907-279-5741 Line: audio & video equip McMartin Industries see ads pgs 18, 65, 90 & 135 NORTHERN VIDEO SYSTEMS INC. 4600 Business Park Blvd. Anchorage 99503 907-279-5571 Line: full line audio & video equip CVS see ad p 122 Lenco Electronics see ad p 79 Independent TeleMation see ad p 81 Broadcast ARIZONA

MOXON ELECTRONICS 4210 N. Brown Ave. Reps/Distributors Scottsdale 85251 602-945-3737 Line: test instruments Marconi see ad p 119 PACKER SALES CO. Including cross reference to companies 855 E. Plaza Ave. Scottsdale 85253 602-949-9443 whose products are advertised Line: audio equip AKG see ad p 51 POLARIS LABORATORIES 4446 N. 36th St. Birmingham 35209 LEE ASSOCS. Phoenix 85018 ALABAMA 205-870-7620 817 Wheeler Ave. 602-956-6281 Line: full line video equip Huntsville 35801 Line: audio equip CVS see ad p 122 ADAMS & ASSOCS 205-533-5896 PERSPECTIVE MEASUREMENTS Lenco Electronics see ad p 79 Line: test instruments 7244 E. Indian School Rd. P.O. Box 26119 Strand Century see ad p 102 Marconi see ad p 119 Birmingham 35226 Scottsdale 85252 Line: audio equip JAMES W. CLARY CO. THE MAZE CORP 602-947-3860 1713 Second Ave. So. P.O. Box 6636 Line: video systems BCS ASSOCS Birmingham 35233 Birmingham 35210 ROH'S INC. 3322 S. Memorial Pkwy. 205-322-2486 205-591-4800 4553 E. Broadway Huntsville 35803 Line: audio components Line: full line broadcast (radio & TV) 205-881-6220 Tuscon 86711 GRICE ELECTRONICS & recording equip 602-327-5929 Line: video products Inovonics see ad p 134 TFT see ad p 136 3696 Airport Blvd. Line: fullline video equip, CCTV Mobile 36608 POWELL ELECTRONICS systems CALHOUN CO. INC. Line: video equip 3906 Jackson Hwy. AKAI see ad p 13 240 Oxmoor Circle Suite 102 AKAI see ad p 13 P.O. Box 369 Lenco Electronics see ad p 79

SEPTEMBER, 1975-BM/E Control Design see ad p 63 213-464-5108 415-369-6244 ARKANSAS Stanton Magnetics see ad p 34 Line: broadcast cartridge sales, re-Line: audio components loading, service B&L SALES Superscope see ad p 117 4312 Colfax Ave. Aristocart see ad pg 136 JOHN G. HUMBLE ALLIED SOUND VISUAL ED. INC. Studio City 2011 W. Kattella #44 Line: audio products EQUINOX SALES CO. 3520 W. 69th St. Suite 306 210 N. Richman Ave. Anaheim 92804 714-991-1964 Little Rock 72209 BROADCAST AUDIO ASSOCS. Fullerton 92632 Line: audio & video equip 501-568-2294 5905 Jurupa Suite A 714-879-3190 Line: full line video equip Line: audio & sound systems McMartin Industries see adspgs Riverside 92504 18, 65, 90 & 135 CVS see ad p 122 714-453-3255 Stanton Magnetics see ad p 34 Lenco Electronics see ad p 79 Line: full line of audio equip KAYTRONICS CARLTON BATES CO. Inovonics see ad p 134 EVANS MARKETING CO. 1743 W. Vartikian 6821 Scott Hamilton Dr. 1438 Rollins Rd. Fresno 93705 BROADCAST COMMUNICATIONS Burlingame Little Rock 72209 Line: full line radio equip DEVICES INC. 415-432-3030 Control Design see ad p 63 501-562-9100 5526 E. LaPalma Ave. Line: audio equip Line: audio and radio products Anaheim 92807 KDH ELECTRONICS PAUL JAMESON 714-528-9505 F&B/CECO OF CALIF. INC. 4233 W. Sierra Madre #205 Magnolia 1850 Warburton Ave., Suite 203 7051 Santa Monica Blvd. Fresno 93705 501-234-3778 Santa Clara 95050 Hollywood 90038 Line: audio & video equip Line: attenuators 408-984-6614 213-466-9361 Dynasciences see ad p 96 Tech Labs see ad p 90 Line: full line audio & video equip Line: cameras, lighting equip photo Computer Image see ad p 11 DAVID LINT ASSOCS. SUDBURY WHOLESALE CO. supplies 2444 Old Middlefield Way Datatek see ad p 75 Cinema Products see ad p 77, 83 P.O. Box 989 Dolby see ad p 121 Mountain View 94040 Blytheville 72315 408-964-5344 Stanton Magnetics see ad p 34 HANK GABRIEL 501-762-2093 Thomson-CSF Labs see ad p 21 Line: audio equip Line: audio components 600 16th St. TFT see ad p 136 MacPHERSON SALES CO. Stanton Magnetics see ad p 34 Oakland 94612 BROADCAST ENGINEERING 415-465-5361 P.O. Box 5212 Line: audio components, equip Walnut Creek 94596 1259 Callens Rd. 415-937-1482 Ventura 93003 ADOLPH GASSER INC. Line: audio components Line: audio equip 181 Second St. AKG see ad p 51 Stanton Magnetics see ad p 34 San Francisco 94105 CAMEX CORP. Line: camera equip MANUFACTURERS CALIFORNIA 6362 Hollywood Blvd. Cinema Products see ads p 77, 83 REPRESENTATIVE 600 16th St. Hollywood 90028 GOLDEN STATE SOUND 213-464-0174 Okaland 94612 P.O. Box 9188 Line: audio equip ACCURATE SOUND CO. Line: full line of radio equip Santa Rosa 95405 114 5th Ave. Control Design see ad p 63 707-546-7540 MARSHANK SALES CO. Redwood City 94063 Line: audio equip 10455 W. Jefferson Blvd. 415-365-2843 CMC TECHNOLOGY Culver City 90230 733 Pastoria Ave. Line: full line of audio equip ALAN GORDON ENTERPRISES 213-559-2591 Innovonics see ad p 134 Sunnyvale 94086 INC. Line: audio equip, sound systems 408-245-3345 5362 N. Cahuenga Blvd. AKG see ad p 51 AITKEN COMMUNICATIONS Line: video equip Hollywood 91601 701 S. 10th St. AKAI see ad p 13 Line: cameras, photo equip, lightingCHARLES MICHEL Taft 93268 equip P.O. Box 5218 805-765-5403 COAST RECORDING EQUIP. Redwood City 94063 6114 Santa Monica Blvd. Cinema Products see ads p 77, 83 Line: audio components Strand Century see ad p 102 415-365-6263 Stanton Magnetics see ad p 34 Hollywood 90038 Line: camera lenses, full line CCTV 213-462-6058 GOTHAM AUDIO CORP. ANIXTER-PRUZAN video equip, video camera acces- Line: audio equip 1710 N. LaBrea sories, video editors 2228 S. Ritchey Inovonics see ad p 134 Hollywood 90046 Santa Ana 92705 213-874-4447 THOMAS M. MORRIS ASSOC. 714,556-6270 DOBBS-STANFORD CORP. 1315 El Solyo Ave. 569 Laurel St. Line: audio components Line: Sony studio video equip, cable Stanton Magnetics see ad p 34 Campbell 95008 constructionaccessories,tools,San Carlos 94070 408-377-6600 headend,passives,testequip,415-592-5948 GRAVCO SALES INC. Line: audio components power supplies Line: sound systems 6515 Sunset Blvd. MOUTH ROP SALES INC. DYNAMIC ASSOC. Los Angeles 90053 ARCAL SOUND & VIDEO 213-462-6618 1530 East 12 St. 2001 El Camino Ave. 2500 S. La Cienga Blvd. Oakland 94606 Los Angeles Line:video amps,proc amps, Sacramento 95821 switchers 415-261-7676 916-927-4502 213-837-9123 Line: audio components Line:audio components,lightingLine:measuring equipmonitors,BILL HAHN equip TBC char generators 3639 Wilmington Rd. MOXON ELECTRONICS 17801 B. Sky Park Circle Dr. Strand Century see ad p 102 EDUCATIONAL ELECTRONICS OFFremont 94538 415-651-2653 Irvine 92707 AUDIO INDUSTRIES CORP. CALIFORNIA 714-556-6500 Suite #8 Line: video proc amp switchers 1419 N. LaBrea Ave. Datavision see ad p 125 2376 Walsh Road Hollywood 90028 90 Glen Way Santa Clara 95050 Line: audio components, equip Belmont 90004 HELD & MOLLARD INC. 408-249-2491 415-592-5713 Palo Alto 94303 7969 Engineer Road AUDIO VIDEO CRAFT Line: CCTV video systems 7710 Melrose Ave. 415-965-9321 San Diego 92111 Los Angeles 90046 EDUCATIONAL ELECTRONICS OFLine: audio components 714-292-4800 213-655-3511 CALIFORNIA Tech Labs see ad p 90 Line: test instruments Line: a/v equip 936 West Florence Ave. DAVE HILL Marconi see ad p 119 AKAI see ad p 13 Inglewood 90301 P.O. Box 1589 213-674-5595 Burlingame 94010 TOM AYE ASSOCS. Line: CCTV video systems NEWCRAFT INC. 766 The Dalles Line: video proc amp swi 8383 Wilshire Blvd. Sunnyvale 94087 BRYANT W. ELLIS BROADCAST, Datavislon see ad p 125 Beverly Hills 90211 408-738-1406 CARTRIDGE SERVICE H&K SALES CO. 213-655-1111 Line: audio components,fullline1227 N. Vine St. 3723 Haven Line: full line of CCTV, video equip radio equip Hollywood 90038 Menlo Park 94024 Panasonic see ad pgs 22-23

SEPTEMBER, 1975-BM/E 89 2139 E. Del Amo Blvd. TREGO SALES CO. 213-871-0677 THE SOURCE '75 Compton 90220 2239 Benedict Canyon Dr. Line: video equip 213-537-3880 Beverly Hills AKAI see ad p 13 Line: video equip 213-274-8351 AKAI see ad p 13 Line: audio equip V&L ASSOCIATES OMEGA ASSOCS. Encino 91316 14169 Hawthorne Blvd. DAVID S. SIEGEL TRI TRONICS INC. 213-986-9703 Hawthorne 90250 235 Montgomery St. 4019 Tujunga Ave. Line: audio components 213-644-3649 San Francisco 94104 N. Hollywood 91604 Tech Labs see ad p 90 Line: video equip 415-788-0600 213-985-6616 AKAI see ad p 13 Line: audio and video equip Line: video equip WESTERN BROADCAST Lenco Electronics see ad p 79 AKAI see ad p 13 SERVICES Telecommunications see ad p 140 SIGMA AUDIO SYSTEMS Viscount see ad p 98 1030 West Evelyn P.O. Box 2469, H'wood Sta. Sunnyvale 94086 PACIFIC RECORDERS & ENG. Hollywood 90038 UNITED SOUND 408-738-2100 CORP. 213-462-8515 1811 W. Magnolia Blvd. Line: audio equip, RF monitors 11760 Sorrento Valley Rd. Line: full line of audio equip Burbank 91506 San Diego 92121 Inovonic see ad p 134 213-845-7435 714-453-3255 Line: audio components, equip Line: fullline audio equip acces- SOUND GENESIS INC. sories 445 Bryant St. VIDEO EQUIPMENT CORP. COLORADO Dolby see ad p 121 San Francisco 94017 7377 Convoy Court Inovonics see ad p 134 415-391-8776 San Diego 92115 Line: audio equip 714-278-4274 Stanton Magnetics see ad p 34 AUDIO -VIDEO SYSTEMS INC. SOUND WEST Line: audio & video equip PERSPECTIVE MEASUREMENT AKAI see ad p 13 6440 E. Colfax Ave. 7034 Covoy Ct. 5042 Ruffner St. Denver 80220 San Diego 92111 CVS see ad p 122 San Diego 92111 TeieMation see ad p 81 303-333-0665 714-278-8931 714-560-7727 Line: full line video equip Line: video systems Line: audio equip VIDEOMEDIA Lenco Electronics see ad p 79 3079 Lawrence Expressway RIGGINS ELECTRONIC SALES TARRODAYCHIK & ASSOCS B&B ELECTRONICS 480 E. Arbor Ave. Santa Clara 95051 2331 San Anseline 408-733-6500 884 S. Lipan Long Beach 90815 Sunnyvale 94086 Denver 80223 408-739-4262 Line: video equip 213-596-6247 AKAI see ad p 13 303-934-2123 Line: audio components, equip Line: audio & video equip Line: sound systems Control Design see ad p 63 TEL -ALPHA VIDEODETICS CORP. AKG see ad p 51 2121 S. Manchester Blvd. Stanton Magnetics see ad p 34 358 Matthew St. RON BOWEN & ASSOCS. Santa Clara 95050 Anaheim 92802 SAN DIEGO CAMERA EXCHANGE Line: video equip, lighting equip 1440 S. Santa Fe 408-247-0911 Denver 80223 1071 6th Ave. Line: full line video equip Strand Century see ad p 00 San Diego 92101 303-744-2501 Line: film equip Viscount see ad p 98 VIDEONICS Line: audio & video equip Santa Clara Canon USA see ad p 101 SCAFER INTERNATIONAL TOTAL VIDEO SERVICE 4201 LaMirada Dr. 408-246-9520 Shintron see ad p 111 5801 Soledad Mountain Rd. Line: video systems Ultra Audio see ad p 133 Lajolla 92037 Bakersfield 93309 Control Design see ad p 63 805-324-7239 VIDEO SYSTEMS INC. CABLE OF AMERICA Line: video equip 12530 Beatrice St. 6767 E. 50th St. HOWARD C. SCHUSTER AKAI see ad p 13 Los Angeles 90066 continued on page 92

the NEWMcMARTIN FM TRANSMITTER BF -3.5K traditionally, McMartin engineering has supplied FREE the AM/FM broadcaster with the finest professional equipment. FROM The new BF -3.5K is one of those products. excellent efficiency 'MTh for power output levels from 2000 to 3500 watts. the high performance Labs solid state B-910 exciter, is the heart of the system superb bandwidth characteristics and operating stability optimum stereo and SCA performance - zero bias, grounded grid PA - no neutralization ... no screen grid or bias voltage supplies are needed standard features include illuminated pushbutton switch controls, INDUSTRY'S MOST COMPLETE output reflectometer, memory -type LED status indicators, TECHNICAL INFORMATION ON built-in harmonic filter, ROTARY SWITCHES remote control capability of PROGRAMMING SWITCHES metering and operating functions THUMBWHEEL SWITCHES ATTENUATORS Call or Write For Free Catalog McMartin. TECH LABORATORIES, INC Bergen & Edsall Birds.. Palisades Park. N.J. 07650 McMartin Industries, Inc. 4500 South 76th Street, Omaha, Nebraska 68127 (402) 331-2000 Tel. (201) 944-2221

Circle 157 on Reader Service Card Circle 158 on Reader Service Card 90 SEPTEMBER, 1975-BM/E On the spot video coverage or preparing a program in the studio ... the JVC PV/GC 4800 system keeps you ready for any situation. Grab the remoteor camera and 1/2" EIAJ-1 recorder and go into the field with only 28 pounds of equipment and record audio and video in color under battery power. Or use the same equipment to set up under the lights in your studio for program taping. Add the studio? color camera adaptor provided and tape directly into a 3/4"U video cassette recorder or other video equipment. Either way you'll have a com- JVC's complete color plete system offering high resolution . . . low power consumption . . . and simple operation. Call your video dealer for a demonstration. recording system... JVC Industries, Inc., 50-35 56th Road, Maspeth, N.Y. 11378, Tel.: (212) 392-7100. In Chicago: 3012 Malmo Dr., Arlington Hgts., IL. 60005, Tel.: (312) 593-8997. In Los Angeles: 1011 W. Artesia Blvd., Compton, CA. 90220, Tel.: (213) 537-8230.

PV/4800 El AJ-1 tape deck for use with camera.

JVC Best by Design

JVC INDUSTRIES, INC. Circle 226 on Reader Service Card for a demonstration Circle 227 on Reader Service Card for a demonstration

JVC Industries, Inc. 50-35 56th Road Maspeth N.Y. 11378 (212) 392-7100 BM/E-95 Please send me information on: Complete system Camera VTR Please arrange a demonstration

Name

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. Address

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Telephone 303-758-8756 Rockville 06066 Line: measuring equip,monitors, THE SOURCE '75 Line: audio equip Line: lighting equip audio & video equip HIGHLAND ASSOCS. Strand Century see ad p 102 TFT see ad p 136 P.O. Box 99 MAC R. BOUGERE ASSOCS. Commerce City 80022 1380 W. Midway Blvd. 303-287-3497 Broomfield 80020 8716 Palisades Dr. Tampa 33615 Line: CATV equip 303-466-3851 DELAWARE AKAI see ad p 13 813-886-8553 Line: full line audio & video equip Line: audio components COLORADO NASHVILLE INC. Control Design see ad p 63 Stanton Electronics see ad p 34 322 Prairie Road Thomson-CSF Labs see ad p 21 CLEARVIEW ELECTRONICS Colorado Springs 80909 H.P. MARKETING P.O. Box 326 F.T.C. BREWER CO. 303-473-1272 Newark 19711 P.O. Box 8057 7342 S. Quince St. Town & Country Plaza Line: audio equip Englewood 80110 302-368-4000 Pensacola 32505 DENVER SOUND SPECIALISTS 303- 770-1 158 Line: TV systems Line: audio equip 904-433-7932 5701 N. Logan Line: audio equip, transmitters Denver 80216 UREI see ad p 131 Dolby Labs see ad p 121 303-573-5611 PLS ASSOCS. Inovonics see ad p 134 Line: full line of audio equip 7418 E. Princeton Ave. DISTRICT OF Inovonics see ad p 134 BROADCAST AUTOMATION Denver 80237 COLUMBIA 5199 NE 12th Ave. DIDIER/DENVER 303-771-0140 Ft. Lauderdale 33308 P.O. Box 1599 Line: test instruments 305-776-4762 Evergreen 80439 Marconi see ad p 119 BRENNER CINE-SOUND Line: full line audio & video products 303-674-6000 SATTER SALES CO., INC. 5215 Wisconsin Ave. N.W. Stanton Magnetics see ad p 34 Line: full line audio & video equip 4100 Dahlia Washington 20015 BROADCAST ENG. CO. Computer Image see ad p 11 Denver 80207 Line: sound & film equip Datatek see ad p 75 Box 14444 303-399-7493 Cinema Products see ad pgs 77,Ft. Pierce 33450 Datavision see ad p 125 Line: audio components 83 Roh see ad p 103 Strand Century see ad p 102 Line: audio products Strand Century see ad p 102 Superscope see ad p 117 Telecommunications see ad p 140 CTL ELECTRONICS CONTROLLED TECHNOLOGY INC. Thomson-CSF see ad p 21 6912 4th St. N.W. 2513 Tortugas Lane TFT see ad p 136 Washington 20012 Ft. Lauderdale 33312 World Video Aids see ad p 128 CONNECTICUT 202-726-6767 305-587-2716 Line: video equip Line: full line audio & video equip AKAI see ad p 13 Control Design see ad p 63 Dolby see ad p 121 JOHN B. ANTHONY EMCO INC. Roh see ad p 103 992 High Ridge Rd. 1212 Connecticutt Ave. N.W. KB lifiNEIFiViriontalviii Stamford 06905 Washington EXECUTONE OF WEST CENTRAL 203-322-9202 202-638-4381 FLORIDA Line: full line audio equip Line: audio equip Box 7637 01 AKG see ad p 51 Tampa 33673 UREI see ad p 131 GLENS INDUSTRIAL COMPLEX 813-229-9311 We have the EBS solution 6200 Chillum Pl. N.W. Line: full line audio/video equip AUDIOTECHNIQUES, INC. Washington 20011 Herb Didier Nick Didier 142 Hamilton Ave. 202-723-1710 FINE SALES CORP. W.W. Myers Stamford 06902 Line: video equip 12790 N.W. 42nd Ave. 203-359-2312 AKAI see ad p 13 Opa Locka 33054 Box 1599 Line: full line audio equip, recording 305-685-6431 Evergreen, Colorado 80439 accessories imported and domestic PROFESSIONAL PRODUCTS INC.Line: video equip (303) 674-6000 4964 Fairmont Ave. AKAI see ad p 13 BURNS ELECTRONIC SECURITY Bethesda 20014 INC. 301-933-3451 FIRESTONE ASSOC. 735 Route 5 Line: full line video equip 285 N.E. 185th St. S. Windsor 06074 Lenco Electronics see ad p 79 Hollywood 33021 ELECTRO TEK 203-528-2186 305-651-3830 Box 395 Line: full line audio & video equip VIDEO ENGINEERING CO. Line: audio components, test equip Westminster 80030 Washington CVS see ad p 122 FLAGLER RADIO CO. 303-255-4566 Dynasciences see ad p 96 202-882-6131 Line: audio components, systems Line: video systems 1068 W. Flagler St. Lenco Electronics see ad p 79 Miami 33130 J.A. GEDNEY TeleMation see ad p 81 305-373-6548 476 East 58th Ave. NELSON-BENNETT ASSOCS Line: audio components, equip Denver 80216 Thomaston 06787 FLORIDA Stanton Magnetics see ad p 34 303-238-3112 203-283-5959 Line: sound systems Line: audio components FLORIDA ELECTRONICS Tech Labs see ad p 90 P.O. Box 15889 GEMINI TELECOMMUNICATIONS BCS ASSOCS. INC. Orlando 32808 1776 S. Jackson St. VIDEOPLAY INDUSTRIES 940 N. Fern Creek Ave. 305-293-4804 Denver 80210 Kingsbury Ave. Box 415 Orlando 32802 Line: audio & video equip

Still the industry's MOST WANTED

VIDEO TAPE TIMER

Bright LED display RECOR TEC Optional remote display Available for all 2 -inch VTRs Free evaluation to qualified buyers HR MIN SEC FRAME

7ECORTEC, INC. 777 PALOMAR AVE. SUNNYVALE, CA. 94086 TEL: (408) 735-8821 TWX: 910 339 9367

Circle 160 on Reader Service Card SEPTEMBER, 1975-BM/E GRICE ELECTRONICS CVS see ad p 122 Miami 33168 ELECTRONIC EQUIPMENT INC. 320 E. Gregory Dynasciences see ad p 96 305-754-5475 526 Plaster Ave. N.E. Pensacola 32501 Lenco Electronics see ad p 79 Line: audio components, equip, tapeAtlanta 30324 904-433-4616 Strand Century see ad p 102 recorders 404-873-5841 Line: full line audio/video equip AKG see ad p 51 Line: audio components & equip AKAI see ad p 13 MIDWEST Stanton Magnetics see ad p 34 TELECOMMUNICATIONS HARRIS CO. 3331 N.W. 82nd Ave. FIDELICOM, INC. 633 Shenandoah Miami 33122 GEORGIA P.O. Box 80644 Miami 33145 Line: audio & video equip Chamblee Station Line: audio equip CVS see ad p 122 Atlanta 30341 404-458-3616 L.P. HENCH CO. TeleMation see ad p 81 ADAMS & ASSOCS. Line: audio equip, test equip 990 Richmond Ave. PHOTOMART P.O. Box 877 AKG see ad p 51 Miami 6237 S. Orange Ave. 3719 Stanford Circle 305-251-4343 Orlando 32809 Decatur 30031 GRAVCO SALES, INC. Line: audio products 305-851-2780 Line: audio equip 1644 Tully Cir. N.E. Line: video equip IMAGE DEVICES INC. Atlanta 30301 AKAI see ad p 13 ALPHA MARKETING 404-634-0521 811 N.W. 111th St. 830 W. Peachtree St. Line: Miami 33168 MORT PRESS video processingequip; Atlanta 30308 switchers Line: photo cameras 1800 San Souci Blvd. 404-881-9595 Cinema Products see ad pgs 77,N. Miami 33161 Line: audio systems GRAY COMMUNICATIONS 83 305-895-2262 132-38 Pine Ave. Line: video cameras, lenses, videoANIXTER-PRUZAN Albany 31702 J&B ASSOCS. editors 4303 Pleasantdale Rd. 2128 Faulkner Rd. 380 N.E. 67th St. Atlanta 30340 Atlanta 30303 Miami 33138 PROFESSIONAL 404-449-6533 Line: audio & video equip, video 305-751-9752 REPRESENTATIVES Line: Sony studio video equip, fullsystems Line: audio components 709 N. Franklin St. lineof CATV equip,cablecon-AKAI see ad p 13 Superscope see ad p 117 Tampa 33602 structionaccessories,tools, headCVS see ad p 122 813-223-2911 end,passives,testequip, powerTeleMation see ad p 81 J&J ELECTRONICS Line: camera lenses, full line CCTVsupplies 5855 Johnson St. video equip, video camera equip, C. HARRISON ASSOCS. Hollywood video editors ATLANTA FILM EQUIPMENT 6695 Peachtree Blvd. #107 Line: video production switchers,REPELECT RENTALS Atlanta 30341 pulse & distribution amps, routingBox 7102 1848 Briarwood Rd N.W. 404-449-7696 switchers, special effects generatorsTampa 33603 Atlanta 30329 Line: audio & video equip Viscount see ad p 98 813-227-5051 Line: video equip Shintron see ad pill LAUDERDALE ELECTRONIC Line: audio & video equip, trans-Cinema Products see ads pgs 77, Ultra Audio see ad p 132 LABS mitters 83 16 S.W. 13th St. McMartin Industries see ads pgs J&B ASSOCS. BCS ASSOCS. 1782 Marietta Blvd. N.W. Ft. Lauderdale 33315 18, 65, 90 & 135 2522 Tanglewood Rd. 305-525-0478 Atlanta 30318 REYNOLDS & ASSOCS. Atlanta 30033 404-351-9816 Line: audio components 404-321-0980 Stanton Magnetics see ad p 34 Thomaston 06787 Line: audio components 203-283-5959 Line: full line video equip Superscope see ad p 117 TFT see ad p 136 LEE ASSOCS. Line: audio components Tech Labs see ad p 90 LEE ASSOCS. P.O. Box 672 BROADCAST SUPPLY OF P.O. Box 587 Winter Haven 3380 SOUTHEAST ELECTRONICS ATLANTA Bufurd 30518 813-294-5815 1125 Rouselle St. 2971 Flowers Rd. S. Suite 170 404-457-7117 201 NE 2nd ST. Jacksonville 32203 Atlanta 30341 Line: test instruments Ft. Lauderdale 33301 904-356-3007 404-458-0815 305-525-9767 Line: full line of audio/video equip Line: full line audio equip & suppliesMAITLAND K. SMITH, INC. Line: test instruments TeleMation see ad p 81 CALHOUN COMPANY 110 Robin Rd. RFD #3 Marconi see ad p 119 404-971-2831 121 Forrest Ave. N.E. SPIRE AUDIO VISUAL CO. Line: sound equip JARRELL C. LESTER 24 N.W. 36th St. Atlanta 30303 4515 South Hale Miami 33132 404-659-0750 RADFORD ASSOCS. Tampa 33611 305-576-0844 Line: video systems, audio equip, 3203 Lanier Drive 813-932-4365 lighting equip Atlanta 30319 Line: video equip Line: audio/visual equip AKAI see ad p 13 Dynasciences see ad p 96 Line: full line audio & video equip Lenco Electronics see ad p 79 Aristocart see ad p 136 LYKES ELECTRONICS CORP. WEST COAST ELECTRONICS 1800 N.W. 23rd St. Strand Century see ad p 102 Computer Image see ad p 11 5922 60th Ave., N. Miami GRADY DUCKETT SALES Datavision see ad p 125 St. Petersburg McMartin Industries see ads pgs 5426 W. Crenshaw Line: lighting equip P.O. Box 20967 Tampa 33622 18, 65, 90 & 135 Strand Century see ad p 102 Atlanta 30329 813-886-6621 404-451-3529 Roh see ad p 103 Line: full line audio & video equip WORLD WIDE PRODUCTS Line: audio systems, components Thomson-CSF Labs see ad p 21 AKAI see ad p 13 P.O. Box 279 Tech Labs see ad p 90 continued on page 96

VR2000 R MOD Still the industry's MOST USED

VR1200-R VR1200 R -MOD VIDEO TAPE RECORDER VR1100-1=3 R -MOD is the logical answer to your requirement TR7O-R TR70 Lt=i/ for automating existing VTRs. The field installable modification kit upgrades your TR22-R existing VTR transport to achieve performance like that of the newer vacuum buffered drives.

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

Circle 161 an Reader Service Card SEPTEMBER, 1975-BM/E 93 someday somebody mayimilate. TheProduct..

SEPTEMBER, 1975-BM/E ...but nobody willever duplicate Thetervied

field engineering staff a call and we'll have an expert there to help with the job. And inTV Broadcasting, Our franchised distributors, (your own local business- men,) are carefully selected for their ability to support Plumbicon TV camera systems with on -the -spot customer its the service behind support and service. We, in turn, support our distributors with two kinds of "seminars" for Plumbicon camera the product...that keeps users. One is on video tape, the other is presented "live" by an Amperex field engineer. The purpose of both is to maximize the value of Plumbicon camera systems. the product out front Finally, we learned that the best way to deal with warranty questions was to design the warranty for the customer's benefit - not to protect ourselves ... and even then, to On the way to selling more than 30,000 Plumbicon* TV interpret the warranty in the customer's favor whenever camera tubes, we learned how important Service is to the possible. For example, a customer may return any broadcaster. The first thing we learned was about Plumbicor tube for testing (even one that's technically availability- No TV station, commercial or educational, out of warranty) and we'll subject it to a complete technical can ever afford to shut down an operation while "waiting evaluation at our expense ... and send the customer a for parts." Plumbicon tubes are instantly available, at all detailed engineering report on the tube. times, through local franchised distributors and through Yes, we've learned a lot about the importance of Service Amperex factory sales representatives. in the ten years, in the more than 30,000 tubes sold, in the And we learned the importance of the name Plumbicon 600 -plus TV stations served, since the Plumbicon tube to TV stations who have come to depend on it as their won the Emmy award. _ittle wonder, then, that the assurance of consistent performance and quality. Plumbicon, after all this time, still offers the best all-around Because no product is ever "good enough," we taught package of performance, price. reliability and service ourselves to build smaller and smaller Plumbicon tubes available. Little wonder, then, people keep on saying, that provide performance standards similar to the original "There's only one Plumbicon." (we're down to 2/3 inch tubes now,) and we learned to Electro-Optical Devices Division, Amperex Electronic produce tubes with reduced comet tailing, with higher Corporation, Slatersville, Rhode Island 02876, resolution and modulation depth, with extended -red Telephone: 401-762-3800 response, and with minimum lag. Contemporary camera tubes outperform the original Plumbicon by a wide margin. We learned that the TV camera user is concerned about the operation of his camera ... not merely about the performance characteristics of our tubes. So we provide Amperex him with a wide range of expert and valuable information, A NORTH AMERICAN PHILIPS COMPANY in print and via our field engineers, to help him get the most out of his TV camera -system. Plumbicon users There is only one Plumbicon who are about to install a new camera need only give our

Reg. T.M. of N.V. Philips of the Netherlands Circle 162 on Reader Service Card SEPTEMBER, 1975-BM/E 95 JAMES CHANG 1300 Hill Road Line: audio components THE SOURCE '75 190 S. King St. Boise 83702 Tech Labs see ad p 90 Honolulu Line: audio components & equip 808-531-2165 VICTOR DUNCAN INC. World Video Sales see ad p 128 Line: audio and video equip 676 St. Clair St. Chicago 60611 SYSTEMS ENGINEERING CO. ELECTRONIC SYSTEMS, INC. Line: photo equip & supplies P.O. Box 49224 875 Waimana St., Suite 500 Atlanta 30329 Cinema Products see ads pgs 77, Honolulu 96813 ILLINOIS 83 404-482-2446 808-533-3848 Line: audio components Line: full line of audio/video equip GORDON DUVALL CO. TECHNICAL SYSTEMS REPS TeleMation see ad p 81 6838 N. Ottawa St. ADVANCED PHOTO/SOUND Chicago 60631 2080 Peachtree Ct. HAWAII BROADCAST ASSOCS. 495 S. Washington St. 312-774-5115 Chamblee 30341 P.O. Box 1344 Hinsdale 60521 Line: audio components,fullline 404-457-0426 Honolulu 96807 radio equip Line: audio equip 312-323-7464 808-537-3991 Line: video & photo equip Stanton Magnetics see ad p 34 UREI see ad p 131 Line: broadcast equip AKAI see ad p 13 TELESYSTEMS MARKETING, INC.Microwave Assocs see ad p 115 GRAVCO SALES, INC. J.D. ALLYN 125 S. Wilke Rd. 2425 Wood Valley Dr. J.C. ELECTRONICS 419 S. Bruner St. Morrow 30260 190 S. King St. Arlington Heights 60004 Hinsdale 60521 312-394-1344 404-363-4503 Suite 976 312-325-0495 Line: audio components & equip Honolulu 96813 Line:videoprocessingequip; Line: audio & broadcast equip switchers VISUAL SYSTEMS Line: audio equip Modular Audio Products see ad p 3870 N. Peachtree Rd. UREI see ad p 131 120 HELIX LTD. 679 N. Orleans Atlanta 30341 PACIFIC INSTRUMENTATION A/V CENTER 404-457-1388 Chicago 60610 5388 Papai St. 6160 W. Oakton St. Line: lighting equip Line: video equip, charger Honolulu 96821 Morton Grove 60053 Strand Century see ad p 102 Line: video & photographic products Line: audio/video equip Cinema Products see ads pgs 77,Strand Century see ad p 102 83 RAY R. HUTMACHER ASSOC. INC. B.W. ASSOCIATES 6668 Northwest Highway HAWAII GENE PIETY FACTORS INC. 415 W. Fullerton Pkwy. Suite 701 Chicago 60631 861 Mapunapuna St. Chicago 60614 312-631-3248 P.O. Box 2903 312-935-4900 Line: audio components, communi- ATTCO Honolulu 96802 Line: audio components cations equip; tape recorders 808-839-9059 UREI see ad p 131 2855 Koapaka St. INTERNATIONAL AUDIO INC. Honolulu 96819 Line: audio components Superscope see ad p 117 CENTER VIDEO CENTER 2934 Malmo Dr. Line: lighting equip 5800 W. Fullerton Ave. Arlington Heights 60005 Strand Century see ad p 102 Chicago 60639 312-956-6030 BROADCAST SERVICES INC. 312-637-1600 Line: audio equip 2877 Kalakua Ave. Line: video equip IDAHO AKAI see ad p 13 LA SALLE AUDIO Honolulu 96815 740 N. Rush St. 808-533-3877 CRIMSON ENGINEERING CO. Chicago 60611 Line: fullline audio equip; CCTV Glenview 60025 312-266-7500 equip FUNLAND PRODUCTIONS 312-724-1780 Line: full line of audio equip OUR PROC AMP WORKSWITH ANY COLOR OR BLACK& WHITE QUAD... HELICAL SCAN

Model 6000 Series Video Processing System Does yours? For more information, write or call: video products 111911AISCIIEINICESTOWNSHIP LINE ROAD BLUE BELL, PA 19422 Telephone: (215)643-0250 Telex: 84-6358

Circle 163 on Reader Service Card

! E Inovonics see ad p 134 SANKO TRADING, INC. B&A ELECTRONICS KENNETH MEYERS Stanton Magnetics see ad p 34 1386 Jarvis Ave. 666 Walnut St. 3512 Rockville Road Elk Grove Village 60007 Terre -Haute Indianapolis 46222 LOREN F. GREEN ASSOC. Line: video equip 317-243-6687 5218 W. Diversey 312-439-2280 Line: audio and broadcast productsCVS see ad p 122 Line: test instruments Chicago 60639 Marconi see ad p 119 312-286-6824 SONIC SERVICES EVANSVILLE THEATRE SUPPLY Line: sound equip; test equip 161 E. Grand Ave. Suite 400 2274 E. Div sion St. RA-DIS-CO, INC. Chicago 60611 Evansville 47714 814 N. Senate Ave. MILAM AUDIO CORP. 812-476-6410 Indianapolis 202 700 W. Main 312-969-4414 Line: video equip 317-637-5571 South Pekin 61564 SWIDERSKI ELECTRONICS AKAI see ad p 13 Line: full line broadcast equip 309-348-9605 5456 N. Milwaukee Ave. Control Design see ad p 63 Line:audiocomponents,equip;Chicago 60630 J.O. GOETZ SALES recorders 312-775-3232 5941 Brendonridge N. Inovonics see ad p 134 Line: audio & video equip Indianapolis 42226 CVS see ad p 122 317-545-5638 KENNETH MEYERS Lenco Electronics see ad p 79 Line: audio & video equip IOWA 7442 N. Harlew BRIAN TUCKER McMartin Industries see ads pgs Chicago 60648 18, 65, 90 & 135 312-774-6440 P.O. Box 730 Barrington ALEXANDER ELECTRONICS Line: test instruments HARRISON RADIO, INC. Marconi see ad p 119 312-381-4559 Des Moines Line: audio products P.O. Box 327 515-274-4741 Corydon 47112 Line: video products THEODORE PAPPAS & ASSOC. VITRONICS, INC. 812-738-3241 5218 W. Diversey Ave. 676 N. LaSalle St. Line: radio broadcasting equip BEAMS INC. Chicago 60639 Chicago 60610 517 5th Ave. 312-685-2338 312-337-6670 INDIANAPOLIS VIDEO Des Moines 50309 Line: audio equip Line: video products 6226 LaPas Trail 515-282-0292 AKG see ad p 51 Indianapolis 46268 Line: audio equip V -TIP, INC. 317-293-3313 AKG see ad p 51 ROGER PRYOR 128 Kishwaukee St. Line: video equip 220 E. 21st St. Rockford 61104 AKAI see ad p 13 K&M ELECTRONICS Chicago 815-968-4683 1910 Ingersoll 312-255-7900 Line: full line audio/video equip KEVIN JOYCE Des Moines 50309 Line: video proc amp switchers TeleMation see ad p 81 1207 E. Wayne S. Line: full line video equip Datavision see ad p 125 South Bend 46615 Lenco Electronics see ad p 79 ROSCOR 219-233-1592 MASTERTONE CO. 6160 W. Oakton St. Line: electronic tubes, components 1105 Maple St. Morton Grove 60053 INDIANA English Electric Valve see ad p 53West Des Moines 50285 312-539-7700 515-274-2551 Line: audio & video equip MEADE ELECTRONIC CO. Line:fullline audio equip; trans- 1825 Summer St. mitters, monitors IRVING ROSE ASSOCS. ALLIED BROADCAST EQUIP. Hammond 46320 137 Ridgeway Ave. 124 S. 6th St. 219-932-2100 VIDEO COMPONENTS Skokie 60076 Richmond 47374 Line: audio & video products 3116 Dearborn Ave. 312-674-6790 317-962-8596 CVS see ad p 122 Sioux City 51104 Line: audio and video equip Line: audio equip for radio Dynasciences see ad p 96 continued on page 98

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Never let is be said that you didn't let Neve look at your console requirement. This television console is but one of dozens of standard console designs for various applications. From the most modest studio to the largest of network facilities.. Neve probably has a standard console to satisfy your Radio or TV requirement. If it doesn't exactly match - we'll modify. Of course, we also build many custom consoles. Call us. You'll be pleased with the prices and you'll be buying the best.

Rupert Neve Incorporated, Berkshire. Industrial Park, Bethel, Connecticut 06801 Tel: (203) 744-6230. Telex: %%38 Rupert Neve. Incorporated. Suite 614. 1800 Ilighlond Ave., Hollywood. California 90028 Tel: (213) 465-4822 Rupert Neve of Canada. Ltd., 2717 Henn Road Minton, Ontario L4T 3K1, Canada Tel: (416) 677-6617 Rupert Neve. & Company 1.0., Cambridge House, Melbourn, Royston. Hertfordshire, SC8 6All England, Tel: (0763) 60776 Hoped Neve GmbH, 61(X) Darmstadt Bismarckstrasse 114 West Germany, Tel. (06/51) 81764

Circle 164 or Reader Service Card SEPTEMBER, 1975-BM/E Strand Century see ad p 102 THE SOURCE '75 INTERSTATE SCHOOL SUPPLY 2918 Neal Dr. 712-276-0404 Pineville 71360 VISCOUNT Line: camera lenses, full line CCTV 1620 Clio St. video equip, video camera acces- New Orleans 70131 1150BPRODUCTION sories, video editors 1835 Front St. Canon USA see ad p 101 Baton Rouge 70821 SWITCHER 504-387-5131 Line: audio & visual equip WARREN RADIO CO. CVS see ad p 122 1205 E. River Dr. Lenco Electronics see ad p 79 Davenport 52808 TeleMation see ad p 81 319-323-8051 PROFESSIONAL... Line: video products LYKES ELECTRONICS 3308 Orleans Ave. New Orleans 70119 and... AVAILABLE Line: audio & video equip KANSAS Dynasciences see ad p 96 Strand Century see ad p 102 MAR ELECTRONICS BEAMS INC. 3521 E. Louisiana State Dr. 9416 W. 87th Terrace Kenner 70062 Shawnee Mission 66212 504-729-4524 913-341-7744 Line: full line audio & video equip Line: audio equip Thomson-CSF Labs see ad p 21 AKG see ad p 51 NATIONAL BROADCAST EQUIP. A.K. ELLIOTT CO. P.O. Box 52844 P.O. Box 6129 New Orleans 70152 Leawood 504-522-3089 913-649-6540 Line: audio components equip Line: audio products SCOTT ORMSBY COMPANY WILLIAM MENEZES & ASSOCS. P.O. Box 7 5600 W. 95th St. La Combe 70455 P.O. Box 7070 504-882-7248 Overland Park 66207 Line: sound equip Line: video equip PAN AMERICAN FILMS AKAI see ad p 13 822 No. Rampart St. STEVE SMITH CAMERAS INC. New Orleans 70116 623 Kansas Ave. Line:photo supplies and acces- Topeka sories 913-235-3481 KEY FEATURES: Line: video equip

* 14 inputs- El sync,6 non MAINE * 4 busses KENTUCKY 27std. wipe patterns R.G. HARRIS ASSOC., INC. BRUCE L. DAWSON 5 Portland Pier * int.,ext.,chroma key 7105 Greenlawn Rd. Portland 04111 Louisville 40222 Line: CCTV systems * composite, ext. R G B 502-426-4022 Line: video equip, cameras, lenses * soft key, wipe of key Canon USA see ad p 101 * mixblink on wipekey Shintron see ad p 111 MARYLAND ELECTRONIC LABORATORIES, * spot light effect INC. Suite 2002 800 Bldg. ASSOCIATED SALES REPS. * black burst, clr. mat.gen 800 South 4th St. 8706 Wilson Ave. Louisville 40203 Baltimore 21234 *`on-air'inputs indication Line: audio components & equip 301-661-2888 Line: audio equip * full preview SIGHT & SOUND INC. Box 1644 DAVID BROTHERS & CO. * colour timed, any path Louisville 40201 6302 Lincoln Ave. 502-584-5535 Baltimore 21209 * vert. int. switching Line: audio & video equip, CCTV 201-764-7189/202-783-3480 systems Line: audio equip * processing amplifier Ultra Audio see ad p 133 CRAMER VIDEO SYSTEMS World Video Inc see ad p 128 Gaithersburg * remote control panel SONIC SERVICES 301-948-6110 P.O. Box 5142 Line: video equip Louisville 40205 ROBERT HALVORSON 502-583-6863 4000 Thornapple *$9250 -`1150 B' Line: full line of audio equip Chevy Chase 20015 Inovonics see ad p 134 301-654-1680 (shown above) Line:audioequip;audio tapes also available: transmitters LOUISIANA HAYDEN ASSOCS. $ 7500- `1150 16 Decatur Ave. Annapolis 21404 AUDIOMEDIA ASSOCS. 202-296-6059 P.O. Box 29264 Line: measuring equip, monitors VISCOUNT New Orleans 70189 INTERNATIONAL SOUND CORP. INDUSTRIES LTD. 504-586-0140 pp- 105 EAST 69th AVENUE 7102 Milford Industrial Rd. VANCOUVER, BRITISH COLUMBIA Line: audio components Pikesville 21208 Al CANADA V5X 2W9 Stanton Magnetics see ad p 34 Line: audio & video equip PHONE (6041 327-9446 TELEX 104) 508-605 JASPER E. WING & SONS Dynasciences see ad p 96 1904 Poydras HABCO ELECT. New Orleans Towson 21204 Line: lighting equip 301-825-9637 Circle 165 on Reader Service Card

SEPTEMBER, 1975-BM/E Line: audio components Line: electronic tubes, components English Electric Valve see ad p 53 Tech Labs see ad p 90 WORLD'S BEST STEREO GENERATOR GERALD KERR 15932 Shady Grove Rd. INDUSTRIAL COMPONENTS Gaithersburg 20760 CORP. WILKINSON ELECTRONICS SG1E 301-948-0460 2551 Boston Rd. Line: video proc amp switchers N. Wilbraham 01067 Datavision see ad p 125 413-596-3854 POSITIVE PROOF Line: audio components PIERCE PHELPS INC. Stanton Magnetics see ad p 34 * 60 db separation 50 Hz -7500 Hz 8204 Felton St. Suite 105 7500 Hz -10000 Hz KEN CORP. * 55 db separation Silver Spring 20910 10 KHz 15 KHz Line: video equip 38 Montvale Ave. * 50 db separation CVS see ad p 122 Stoneham 02180 * FM Noise - 75 db Cross Talk - 60 db 617-438-5464 PROFESSIONAL PRODUCTS INC Line: test instruments 4964 Fairmont Ave. Marconi see ad p 119 Bethesda 20014 LAKE SYSTEMS CORP. 301-933-3451 55 Chapel St. ELECTPWCSMC Line: full line video products Newton 02160 SG -if CVS see ad p 122 617-244-6881 Lenco Electronics see ad p 79 Line: full line audio & video equip RECORDING CONSULTANTS INC CVS see ad p 122 7912 Georgia Ave. Stanton Magnetics see ad p 34 COMES COMPLETE WITH POWER SUPPLY Silver Spring 20910 TeleMation see ad p 81 301-565-2270 LEBOW LABS REQUIRES ONLY 31/2" RACK SPACE Line: full line of audio equip 56 Chestnut Hill Ave. Inovonics see ad p 134 Boston 02135 ONLY ONE FRONT PANEL ADJUSTMENT Stanton Magnetics see ad p 34 617-566-1125 REMOTE STEREO ON/OFF FUNCTION GENE ROSEN ASSOCS. Line: audio components, radio equip

9501 Wadsworth Dr. Control Design see ad p 63 Bethesda 20034 Dolby see ad p 121 301-530-8448 Stanton Magnetics see ad p 34 WORLD'S BEST FM EXCITER Line: audio products NELSON-BENNETT ASSOCS. SELINGER & ASSOCS. Auburn 01501 401 Southlawn Lane 617-757-3131 WILKINSON ELECTRONICS FME10 Rockville 20850 Line: audio components Line: audio & video equip Tech Labs see ad p 90 POSITIVE PROOF AKAI see ad p 13 F.M. VALENTI Dynasciences see ad p 96 16 Saddle Club Rd. * Frequency response ±1/4 DB 15 HZ -350 KHz. S&S ASSOCS. Lexington 02173 * FM Noise Level - 70 DB below 100% Mod. 7720 Wisconsin Ave. 617-861-0089 Bethesda 20014 Line:audioequip,videoequip; * Distortion - 0.3% 301-654-1434 camera lenses * Modulation - Direct FM Line: test instruments Ultra Audio see ad p 132 * Power Output - Adjustable to 18 watts Marconi see ad p 119 V.F. SALES, INC. *Stability 1 part in 100000 TAUB SALES 181 Worcester Rd. 12810 Gaffney Rd. Route #9 * Requires no oven ald is not susceptable to rumble Silver Spring 20904 Natick 01760 and microphonics 301-622-0300 617-237-6544 Line: audio equip Line: audio & video products AKG see ad p 51 AKG see ad p 51 UREI see ad p 131 BILL WESTON 15932 Shady Grove Rd. VICTOR ASSOCS. Gaithersburg 20760 1400 Worcester Rd. 301-948-0460 Framingham 01701 Line: video proc amp switchers 617-879-5710 Datavision see ad p 125 Line: full line radio equip Control Design see ad p 63 WILTRONIX INC. 5504 Waterway Rockville 20853 301-460-1454 FCC TYPE ACCEPTED Line: broadcast equip & access MICHIGAN Datavision see ad p 125 POWER SUPPLY INCLUDED World Video Inc see ad p 128 REQUIRES 7" VERT. SPACE J. HAROLD ABNERGOYNE & ASSOCS. IMMEDIATELY USABLE IN ANY TRANSMITTER 4103 Kings Lane Burton 48529 SHIELDED BY BOTH STEEL & ALUMINUM MASSACHUSETTS 313-235-1191 Line: lighting equip COMPLETELY METERED Strand Century see ad p 102 ADJUSTMENT FREE CHAS A. BE RUBE CO. AUDIO DISTRIBUTORS P.O. Box 177 2342 Division Ave. S. Westfield 01085 Grand Rapids 49507 413-562-6690 616-452-1596 Line: audio equip Line: full line of radio equip NO ONE CAN MATCH THIS COMBINATION MAC R. BOUGERE ASSOC. Control Design see ad p 63 125 Norwood Terrace CHAMPAGNE SALES CO. Holyoke 01040 24001 Southfield Rd. Suite 102 413-533-2024 Southfield 48075 Line: audio equip 313-354-0270 CRAMER ELECTRONICS Line: audio & video equip, trans- Z 120 Hampton Ave. mitters ELECTRONICS, INC. Needham 02194 McMartin Industries see ads pgs 617-449-2100 18, 65, 90 & 135 Line: CCTV systems 701 Chestnut St. AKAI see ad p 13 CLOVER ELECTRONICS CONSTRUCTION Trainer (Chester) PA. 19013 DAN GREEN 19353 Beech Daly Rd. Telephone (215) 497-5100 3 Buckinghom Rd. Natick 07610 continued on page 100 Circle 166 on Reader Service Card 99 SEPTEMBER, 1975-BM/E 4106 Edgeland 4810 Excelsior Blvd. 10700 Lyndale Avenue S. THE SOURCE '75 Royal Oak 48073 Minneapolis 55416 Minneapolis 55420 313-549-6679 612-926-7658 612-884-1700 Line: audio equip Line: audio equip Line: broadcast equip, transmitters Detroit 48240 AKG see ad p 51 ROBERT MILSK CO. MORE SALES, INC. 313-535-2322 22420 Telegraph Rd. D&L BROADCAST SERVICES Line: video equip Industrial Drive S.W. Southfield 48075 3325 Flag Circle N. Willmar 56201 CRUSE COMMUNICATIONS 313-342-6660 Minneapolis 55427 612-235-0034 4903 Dawn Ave. Line: audio components 612-545-3372 Line: audio components East Lansing 48823 NEWMAN VISUAL EDUCATION Line: complete lire audio & videoSuperscope see ad p 117 Line: lighting equip equip 400 32nd St. R.C. SALES Grand Rapids 49508 McMartin industries see ads pgs VICTOR DUNCAN INC. 18, 65, 90 & 135 10052 County Rd. 11043 Gratiot Ave. Line: video equip Maple Grove Detroit 48213 CVS see ad p 122 FMUMAGNATECH CO. 612-425-5543 Line: photo supplies & equip NORWOOD SCROGGS CO. 3601 Park Center Blvd. Line: audio products Cinema Products see ads pgs 77,Jackson 49201 Minneapolis 55416 SIEDARE ASSOCS. 83 517-750-1170 612-920-6677 Minneapolis 55427 Line: audio components & equip, FM H.M. DYER ELECTRONICS Line: audio components 612-545-5663 Tech Labs see ad p 90 monitor equip, transmitters Line: audio components 31185 Ten Mile Rd. Wilkinson see ad p 99 Farmington Hills 48024 SHALCO INC. Tech Labs see ad p 90 313-478-2157 2359 Woodward Ave. GALAXY FILM SERVICE SKOR Line: time stds, audio & video prod-Ferndale 48220 3000 France Ave. 1821 University Ave. ucts 313-547-4771 Minneapolis 55416 St. Paul 55104 Computer Image see ad p 11 Line: audio products Line: photo supplies & equip 612-645-6461 Datavision see ad p 125 AKG see ad p 51 Cinema Products see ads pgs 77,Line: audio products Dolby see ad p 121 83 Roh see ad p 103 THALNER ELECTRONICS SOUND 80, INC. Thomson-CSF Labs see ad p 21 7235 Jackson Rd. K&M ELECTRONICS 2709 E. 25th St. TFT see ad p 136 Ann Arbor 48103 7360 Ohm Lane Minneapolis 55406 Ultra Audio see ad p 132 313-761-4506 Minneapolis 55435 612-721-6341 World Video Inc see ad p 128 Line: video products 612-835-3080 Line:audio components,equip; CVS see ad p 122 Line: full line audio & video equip recording accessories ROBERT HAWKINS AKAI see ad p 13 Inovonics see ad p 134 4103 Kings Lane VIDECOM ENGINEERING INC. CVS see ad p 122 Burton 48529 2330 Byrd Drive Dynasciences see ad p 96 VCI, INC. Line: audio equip Kalamazoo 49001 Lenco Electronics see ad p 79 7601 Washington Ave. S. 616-382-5452 TeleMation see ad p 81 Minneapolis 55435 R.P. HERMES CO. Line: full line video equip Line: lighting equip 9600 Whittien St. Lenco Electronics see ad p 79 KENNETH W. MEYERS Strand Century see ad p 102 Detroit 48224 3601 Park Central Blvd. Minneapolis 55416 WAHL & WAHL INC. 313-886-4567 1907 Hiawatha Ave. Line: audio & video equip MINNESOTA 612-920-7080 Dynasclences see ad p 96 Line: test instruments Minneapolis 55406 Marconi see ad p 119 612-338-6825 TeleMation see ad p 81 Line: video equip TOM HOUGHTON T.B. ALLEN & ASSOCS. JAYNUS ASSOC., INC. continued on page 102

T e Greatmereican Kvitiuric MachineNEM

Meet the Schafer 902 The economical system with up to 2048 programmable events. The Schafer 902 Switch Memory runs your sequential music format flawlessly, hour after hour.In addition, the 902's Random Access Memory provides 2000 events of commercial availabil ities. Because your commercials are programmed in the Random Access Memory separate from your music, the Schafer 902 can provide up to 50 percent more commercial storage capability than other systems with 2048 events. Shop around. Compare. Before you choose,

remember. .. The Schafer 902 can give you up to 50 percent more walkaway time without re- programming. That's just one of many things the 902 can do for you. If you'd like to find out for yourself why the Schafer 902 will give you more value for every dollar you invest, call or write for details today. The Schafer 902. The Great American Music

Machine . . . and much, much more.

feechorELECTRONICS CORPORATION 75 CastilianDrive Goleta, California 93017 (805)968-0755 Circle 167 on Reader Service Card

SEPTEMBER, 1975-BM/E IT'S TIMEYOU CHANGEDTHE WAYYOU LOOK ATTHINGS. changed. Over years now, we'vebeen pioneers in super Broadcast people, you've also won us effectively turned spectral coating), they've the last few years, you've acclaim in the process. Like aspecial award the industry on its earwith Academy of Arts to pro- from the Motion Picture a determination and Sciences. No lessimportant, our size- vide your public with manufacture and quality effec- able investment in more, and more control insures that theadvances in our labs tive coverage. Your re- aren't diminished on theproduction line. solve has brought about P10 x 206. Lowest -priced You make us look good.Service isn't vast changes in camera 10:1 for major goodwill-it's good business. broadcast cameras just a matter of technology-in size, sell with an extensive weight, mobility andversatility. So we support what we staff of factory -trained We've been changing, too.While quietly industry with high - technicians, head- supplying the broadcast quartered in New quality optics for the lasttwo decades, we've developing a family of York, Chicago and been hard at work, Costa Mesa, Cali- lenses to expand thecapabilities of broad- PV34 x 24B-DZ. Widest keeping the fornia. Equipped with range double -zoom lens. cast TV equipment...while the finest, latest testequipment-much of it economics under control. insure the con- than anyof our own design.To help You are our requirements.More facilitate products are the result sistency of our standards...and other factor, Canon the fastest possible turn-around time. of user inputs. So it's nocoincidence that One demo is worth a we offer thewidest, most customized range thousand claims. of optical products forthe broadcast field- We could spend a in terms of functionand price. From the lot of time on awe- compact (and by the lightest -weight, most inspiring technical 10-120mm on the market way, most popular) specs and case - to an enormously-versatile 32-1070mm with histories. But we'd continuous zoom and 1.8 rather let our lenses ii.meter minimum object do their own talking. More distance.Your require- information, or a demonstra- ments also inspired our tion are yours for theasking. PV25 x 16B-DZ new budget-stretching PV10 x 12B. Most Longest low-cost lens Versatility Packages - popular lens for portable, hand-held for 1" plumbicone a family of two-lens systems professional TV cameras. that give one camera theversatility of two at substantialsavings. (And we're al- Canon® ways listeningfor new ideas.) Canon Optics & Business Machines Canon U.S.A. Inc. Drive, We've invested in you.Because major Head Office. 10 Nevada Drive,Canada, Ltd. 3245 American Mississauga,Ontario. L4V 1B8, Can. happen without a lot Lake Success, N.Y. 11040 optical advances don't 457 Fullerton Avenue, Canon Amsterdam N.V. of expensive thinkingand heavy experi- Elmhurst, Illinois 60126 Industrial Products Division mentation.While the dividends arevisible in 123 Paularino Avenue East, De Boelelaan 8 for some Costa Mesa, Ca. 92626 Amsterdam, Netherlands every Canonproduct (for example, * ® N.V. Philips of Holland

Circle 168 on Reader Service Card 101 SEPTEMBER, 1975-BM/E 527 Northside Dr. St. Louis 63134 COMMUNICATIONS SYSTEMS THE SOURCE '75 Jackson 39205 314-423-9555 INC. 601-982-8734 Line: Sony studio video equip, full 1001 Perry Ave. Line: CCTV systems line of CATV equip, headend, pas- Cape Girardeau 63701 AKAI see ad p 13 sives, test equip, power supplies 314-334-6097 Line: audio components, fullline BEAMS, INC. radio equip MISSISSIPPI MISSOURI 7263 Lansdowne Control Desigh see ad p 63 St. Louis 63119 Stanton Magnetics see ad p 34 314-781-6855 Line: audio equip KSW ASSOCIATES MISSISSIPPI SCHOOL SUPPLY ALEXANDER ELECTRONICS INC. 7546 Troost Ave. AKG see ad p 51 P.O. Box 1059, 217 W. Capitol St. 155 Weldon Pkwy. Kansas City 64131 Jackson 39205 Maryland Heights 63043 816-363-5651 601-948-8600 CHUCK BERRY Line: audio & video equip COMMUNICATIONS Line: audio components Line: audio-visual equip CVS see ad p 122 2800 Market St. CVS see ad p 122 Dynasciences see ad p 96 MOELLER/PICKETT & ASSOC. Dynasciences see ad p 96 TeleMation see ad p 81 St. Louis 63103 2260 Grisson Strand Century see ad p 102 314-534-3323 St. Louis 63141 ANIXTER-PRUZAN Line: video equip Line: audio products SOUTHERN VIDEO SYSTEMS 9449 Aerospace Dr. AKAI see ad p 13 MOELLER/PICKETT & ASSOC. 12506 Grandview Rd. Grandview 64030 Line: audio products PAC 9052 A.E. 50 Highway Raytown 64133 816-737-0066 348 Brooker Lane Hazelwood 63042 314-731-2331 Cool kits Line: test instruments Marconi see ad p 119 PACER CORP. 11221 E. 76th St. for Raytown 64138 Line: video equip Canon USA see ad p 101 THROCKMORTON SALES CO. hotcamera P.O. Box 1088 Ballwin 63011 314-227-7222 Line: audio equip crews. TV ENGINEERING 519 Rudder Rd. Only famous laniro lighting fixtures, (the ones you get in Strand Fenton 63026 Century lighting kits), give you cool -to -touch fiber glass housings, Line: broadcast equip for safe, comfortable handling at any time. And only Strand McMartin Industries see ads pgs Century kits give you superbly rugged carrying cases for years of 18, 65, 90 & 135 trouble -free use. Thomson-CSF Labs see ad p 21 JACK VINES 519 Rudder Rd. Strand Century kits offer the Fenton 63026 best kit value available any- 314-343-5605 where. Light weight. Sturdy, Line: video proc amp switchers durable stands. Easy to adjust during use. Smooth, even .ight distribution. Quick heat dissi- MONTANA pation for fast pack up.

For use on location, and in HOLM -JAMES DISTRIBUTING P.O. Box 2487 the classroom, or wherever 320 6th St. S. rugged portables are needed, Great Falls 59403 Line: audio & video equip insist on Strand Century light- Dynasciences see ad p 96 ing kits. Write for details to National Director of Television/ Motion Picture Sales, NEBRASKA Strand Century Inc 20 Bushes Lane, K&M ELECTRONICS 120 S. 41st St. Elmwood Park, N.J. 07407. Omaha 68131 402-551-7600 Line: video equip CVS see ad p 122 STRAND CENTURY INC Lenco Electronics see ad p 79 A COMPANY WITHIN THE RANK ORGANISATION SECO LABS 206 S. 44th St. Omaha 68131 402- 553-1 164 Line: audio equip VID-A-COMM SYSTEMS 2079 Fourth Ave. Lincoln 68508 Line: video equip CVS see ad p 122 Circle 169 on Reader Service Card SEPTEMBER, 1975-BM/E NEVADA NEW JERSEY ROH CINEMA SERVICE OF LAS VEGAS AUDIO & ELECTRONIC CONSULT. ADDS* 3050 Sheridan St. SVCE. Las Vegas 89102 63 Kiel Ave. POWER TO FLEXIBILITY Line: lighting equip Kinnelon 07405 Strand Century see ad p 102 201-838-0080 1-300 WATTS Line: CCTV systems GLOBAL PRODUCTIONS 1-20 CHANNELS 1624 Mojave Rd. FLOYD CHURCHILL MODULAR CONSTRUCTION Las Vegas 89104 Haddonfield 08033 Line: video equip 609-429-7871 POWER AMPLIFIERS CVS see ad p 122 Line: audio components Tech Labs see ad p 90 PORTER INDUSTRIES 3276 Spring Mountain Rd. CINECRAFT INT'L INC. Las Vegas 89102 11 Caesar Place 702-876-2413 Moonachie 07074 Line: audio components, equip Line: photo video products Cinema Products see ads pgs 77, 83 VIDEO VISION 524 Denslowe Dr. ELDISERCO Reno 69502 12 Estal Place **Model 230 Greenbrook 08812 )ual Channel 702-329-6323 1W/CI 450 ohms Line: video systems 201-968-0344 Line: audio and broadcast products 3e./Ch., 8 ohms Urei see ad p 131 H.M. HOLZBERG ASSOCS. P.O. Box 322 Totowa 07511 NEW HAMPSHIRE 201-256-0455 Line: audio equip, program automation, video switchers, proc amp, A&H PRODUCTIONS, INC. monitors,char generators,trans- Model 210 38 Everett St. mitters, STL, microwave Manchester 03104 Control Design see ad p 63 603-669-9999 Lenco Electronics see ad p 79 Line: audio and broadcast equip Roh see ad p 103 TELECOMMUNICATIONS Stanton Magnetics see ad p 34 World Video Inc. see ad p 128 SERVICES P.O. Box 141 LANDY ASSOCS. Merrimack 03054 12 Buxton Rd. 603-889-3001 Cherry Hill 08003 C Line: full line of audio/video equip 609-424-4660 continued on page 104 Model 220 TeleMation see ad p 81 /Nal Channel 10W/Cr .4.8 ohms 30W Br dge, 8 ohms On

Model. 202. 203. 204 I. 3, aid 10 module powered Enclosures include plug in power supplies and barrier the Air block nodule termination with a full range of high reliability

TV TRANSLATORS Model 271 Single Channel 100 Watts. 4 I i ohms

TV TRANSMITTERS

Mode 272 Dual Channel 100W. Ch , 4.16 ohms TV AMPLIFIERS 300W Bridge. 70.7V Line

25 modules, 4 enclosures and the necessary accessories trom 0 a single source, Write today for additional information @/0 ii-743c1c.Jsrtr-Ite III-75. Roh Corporation 107 Technology Pert/Atlanta 21 Commerce Drive Montgomeryville, Pa. 18936 (Norcross, Georgie 30071 404/449-W73 (215) 368-2600 TWX 510-661-7265 Circle 170 on Reader Service Card Circle 171 on Reader Service Card 1' SEPTEMBER, 1975-BM/E THE SOURCE '75

yet it) TRUE... G.C. VIDEO 9624 Gutierrez Rd. N.E. Albuquerque 87111 Line: audio consoles, video proc505-296-5653 equip Line: audio & video products the PRICE 40 Computer Image see ad p 11 CVS see ad p 122 Datatek see ad p 75 Lenco Electronics see ad p 79 Roh see ad p 103 TeleMation see ad p 81 Stanton Magnetics see ad p 34 Strand Century see ad p 102 Telecommunications see ad p 140 Cross -Pulse INTEGRATED SYSTEMS Thomson-CSF Labs see ad p 21 TFT see ad p 136 133 Jackson St. N.E. Albuquerque 87108 LA SALLE AUDIO Line: video equip Color monitor/ P.O. Box 373 CVS see ad p 122 Teaneck 07066 201-692-0010 Line: full line of audio equip Inovonics see ad p 134 HAS DROPPED Stanton Magnetics see ad p 34 NEW YORK Now you can convert any monitor to a cross -pulse MERRILL LENT monitor with VACC's new $345. model CPG-1 P.O. Box 189 East Hanover 07936 Cross Pulse Generator. Your monitor requires no ANIXTER-PRUZAN 201-887-4849 modification.Fill out the coupon below for more Line: audio & video equip, char gen180 Dupont St. Ultra Audio see ad p 132 Plainview 11802 information. At the same time, ask for a free copy 516-822-8585 of VACC's Troubleshooting Chart. This handy wall L&M ASSOCS. Line: Sony studio video equip, fulll chart has actual photos showing typical video con- 511 Victon St. lineof CATV equip,cablecon- Saddle Brook 07662 structionaccessories,tools, head ditions such as normal sync with and without burst, 201-843-8700 end,passives,testequip, power time -base errors, overshoot, clipped sync, and many Line: test instruments supplies more. VACc's chart is a valuable aid when adjust- Marconi see ad p 119 ASHTON COMMUNICATIONS ing and troubleshooting video problems using a MAGNETIC MARKETING 5 Glenwood Ave. cross -pulse monitor. 29 Valley View Terrace Binghamton 13905 Wayne 07470 Line: video equip 201-694-3511 CVS see ad p 122 If a video monitor is needed, install a VACc Electro- Line: audio equip AUDIO -VIDEO CORP. optical Isolator in a Sony receiver. A engineer or METROREP 55 Delaware Ave. electronic technician can install a model A-1 in a 12", 1 Oxford Dr. Delmar 12054 15" and 17" Sony receiver in less than an hour. Model Freehold 518-439-7611 201-462-1221 Line: full line of audio/video equip Al -A should be installed in a KV1711, KV1722 and all Line: audio and video equip TeleMation see ad p 81 19 inch Sony receivers. You add only one-half pound BERNARD MUNZELLE AURORA COMMUNICATIONS to your receiver and your Sony can be used as a 6 Kilmer Rd. 408 W. 57th St. high quality monitor or retained as a reciever by Edison 08817 New York 10019 201-985-3760 212-541-7040 merely flipping a switch. Isolation is far superior Line: video equip Line: lighting equip to heavy transformer isolated monitors and you AKAI see ad p 13 Strand Century see ad p 102 can connect up to 20 monitors without trouble- OPTIMEDIA SYSTEMS INC. BACH SALES some ground loops if all monitors have VACc iso- 4 Longview Place 1080 Rte. 46 Great Neck lators. Clifton 07013 212-233-3300 201-777-7600 Line: audio & video products Line: sound systems by popular request AKAI see ad p 13 DAVID BAIN ASSOCS. CVS see ad p 122 P.O. Box 1014 NEW DEMODULATOR KIT Dynasclences see ad p 96 Port Washington 11050 TeleMation see ad p 81 516-883-4818 Line:audioequip,transmitters, TELEMEASUREMENTS, INC. NEED AUDIO/VIDEO-OUT TO RECORD OFF -THE- CCTV systems, video equip AIR? Order VACC's new model D1 or D1A Optical 145 Main Ave. Canon USA see ad p 101 Clifton 07014 Control Design see ad p 63 Demodulator. Similar to, but smaller in size than the 201-473-8822 Stanton Magnetics see ad p 34 Line: full line audio & video equip Viscount see ad p 98 widely used VACC Al or Al -A Optical Isolator, AKAI see ad p 13 VACC's new optical demodulator kit is easy to install CVS see ad p 122 MARTY BETTAN SALES, INC. Lenco Electronics see ad p 79 77-15 164th St. and has the same outstanding isolation and weight Strand Century see ad p 102 Flushing 11366 advantages. Use model D1 for Sony's KV1201, 1203, 212-969-7600 Line: audio components 1212, 1214, 1500, 1511, 1710 and CKV 171 and the W.G. BROWN SOUND EQUIP. Dl -A for KV1711, 1722, 1910, 1922 receivers. Yes, NEW MEXICO Syracuse you can install the Al and D1 or Al -A and Dl -A in 315-475-5161 Line: audio & video products the same Sony receiver to have a receiver monitor de- DYMA ENGINEERING modulator. Add VACC's Cross Pulse Generator and Rt. 1 Box 51 THE CAMERA MART Taos 87571 456 W. 55th St. you can have all four functions using one CRT. 505-758-2686 New York 10019 Line: fullline audio equip, trans-212-757-6977 mitters Line: cameras & accessories r Control Design see ad p 63 Cinema Products see ads pgs 77, Stanton Magnetics see ad p 34 83 VAUI: Wilkinson see ad pg 99 Strand Century see ad p 102 World Video Inc see ad p 128 CELEBRATION SOUND PLS ASSOCS. 157 Gray Rd. 4300 H. Silver Ave. S.E. Ithaca 14850 VIDEO AIDS corporation of colorado 607-272-8964 12 West 4th Street, Loveland, Colorado 80537 Albuquerque 87108 505-255-2330 Line: full line of audio equip phone (303) 667-3301 Line: test instruments Inovonics see ad p 134 Marconi see ad p 119 continued on page 106 Circle 172 on Reader Service Card

SEPTEMBER, 1975-BM/E Harris MW -5 Skill/ AM transmitter hasPDM* going forit.

Harris' MW -5 transmitter needs only twotubes for 5,000 watts- provides 125% positive peakmodulation capability for a loudersound-has plate efficiency approaching 90% forlower operating cost. All this possible becauseof Harris' patented Pulse DurationModulator* (PDM) also featured in our top -selling 50,000 watt MW -50 transmitter. Forcomplete information write, Harris Corporation, Broadcast Products Division, 123Hampshire Street, Quincy, Illinois 62301.

COMMUNICATIONS AND HARRIS INFORMATION HANDLING

Circle 173 on Reader Service Card SEPTEMBER, 1975-BM/E HENRY GROSSMAN ASSOCS. L&M ASSOCS. Line: broadcast equip THE SOURCE '75 519 S. 5th Ave. 175 W. 12th St. Control Design see ad p 63 Mount Vernon 10550 New York 10011 Wilkinson see ad p 99 914-664-5393 212-675-7486 Line: audio components, radio equip 7 Mayflower Court NORTHEAST BROADCAST LABS. CHROMACORD CORP. Control Design see ad p 63 Brentwood 11717 15 Charles St. 60 Margaret St. Stanton Magnetics see ad p 34 516-231-8363 South Glen Falls 12801 Plattsburgh 12901 Une: test instruments 518-793-2181 L.K. HANER ASSOCS. Line: audio equip 518-561-2900 Commack 11725 Marconi see ad p 119 Line: full line of audio equip McMartin Industries see ads pgs 516-864-2220 18, 65, 90 & 135 Inovonics see ad p 134 Line: audio components L.S.M. ASSOCIATES Stanton Magnetics see ad p 34 Tech Labs see ad p 90 27 Orchard Park P.M. ELECTRONICS Urei see ad p 131 Phelps 14532 83 Russel Rd. HARVEY RADIO CO. 315-548-4891 Garden City 11530 B. DARMSTEDTER & ASSOCS. Line: audio components 8201 Speach Drive 60 Crossways Park W. 516-248-4858 Baldwinsville 13027 Woodbury 11797 MARTIN AUDIO/VIDEO CORP. Line: full line video equip 315-638-1261 212-297-7577 320 W. 46th St. World Video see ad p 128 Line: audio equip Line: audio components & equip New York 10036 212-541-5900 PROFESSIONAL ELECTRONICS AKG see ad p 51 TONY HAWKINS CO. Line:audio components,equip, FERCO 224 6th Ave. 678 Troy -Schenectady Rd. Brooklyn recording accessories 419 W. 54th St. Inovonics see ad p 134 Latham 12110 212-789-7829 518-785-1660 New York 10019 Stanton Magnetics see ad p 34 Line: lighting equip Line: audio equip Line: audio video products Strand Century see ad p 102 JOSEPH ASSOCS. WENDELL MARTIN CO. CVS see ad p 122 8 Cove Lane 3573 Howlett Hill Rd. Dynasciences see ad p 96 F&B/CECO INC. Lenco Electronics see ad p 79 315 W. 43rd St. P.O. Box 307 Camillus 13031 New York 10036 Port Washington 11050 315-673-2943 RONCO COMMUNICATIONS & Line: cameras & accessories 516-883-1829 Line: audio equip; RF monitors ELECTRIC Cinema Products see ads pgs 77, Line: audio equip, RF monitors MOBIUS CINE LTD. 595 Sheridan Drive 83 Control Design see ad p 63 7 E. 47th St. Tonowanda 14150 716-873-0760 Strand Century see ad p 102 OSCAR E. KRAUT New York 10017 Line: cameras & accessories Line: full line video products GOTHAM AUDIO CORP. 530 D Grand St. Lenco Electronics see ad p 79 741 Washington St. New York 10002 Cinema Products see ads pgs 77, New York 10014 212-228-5511 83 SAVAGE SALES 212-741-7411 Line: video equip R.A. MURRAY CO. Box 95 Line: audio components Shintron see ad p 111 Buffalo 14221 Fayetteville 13066 315-682-2131 Stanton Magnetics see ad p 34 F. LANNEN 716-632-6913 UREI (export only) see ad p 131 Line: audio components Line: test instruments 342 Madison Ave. Marconi see ad p 119 GRAVCO SALES INC. Suite 916 Tech Labs see ad p 90 Station Plaza E. New York 10017 NORTHEAST BROADCAST SENECA COMMUNICATIONS Great Neck 11022 212-687-0400 EQUIP. 112 Killewald St. 516-487-1311 Line: full line radio equip R.R. #2 Tonawanda 14150 Line:video processingequip; McMartin Industries see ads pgs 18,Westport 12993 716-693-8446 switchers 65, 90 & 135 518-962-4567 continued on page 108

640 Series Digital TBC

Reliability of second generation digital design from the TBC pioneers

Simple front panel operation

Lowest cost full capacity digital TBC

Un que Features include: Hich speed bi-polar memory Standalone or 3.58 feedback heterodyne Optional plug-in DOC

Microtime, Inc. 12E0 Blue Hills Avenue Bloomfield, Connecticut 06002 MICROTIME (2C3) 242-4242 TWX 710-425-2390

Circle 174 on Reader Service Card SEPTEMBER, 1975-BM/E HOW CAN WE CONVINCE YOU TO BUYA BETTER CAMERA WHEN YOU ALREADY HAVE THE BEST?

Canon Professional Motion Picture Division 10 Nevada Drive. Lake Success, New York 11040 123 East Paularino Avenue. Costa Mesa. California 92626 Canon Optics & Business Machines Canada, Ltd. 3245 American Drive, Mississauga. Ontario I'm interested. Please send me more information about the new Canon Scoopic 16M, as well as the name of the nearest dealer participating in your one -week free trial and trade-in program.

Name Title Company Address City State Zip Offer ends September 30 1975 TRYA BETTER SCOOPIC. FREE.

If you're in the news, documentary To keep you in action longer, there's even harder to resist, you'll find your or industrial field, chances are you've a more efficient battery/transport sys- Canon dealer eager to help, with a already become attached to our tem that runs sixteen 100' rolls on a generous trade-in allowance on your camera. (After all, 8 out of 10 TV sta- single, faster charge. Has even greater Scoopic 16. tions and literally thousands of pro- ruggedness (though some say that's If that's no problem, send in the ducers and cameramen own them.) impossible). And gives you greater coupon for more information, or see But now that the original Scoopic 16's comfort, too, with smoother operation your local Scoopic dealer...and let him performance and reliability have con- and better balance. spoil you for anything else. vinced you what a good camera it is, All this is just the beginning. *Participating dealers determine exact terms of we'd like to un-convince you. With Because the new Scoopic 16M offers trial offer and trade-ins, in your area. something better. many features you'd expect in a $4,000 Meet the new Scoopic 16M...with camera-at an under $2,000 price. all the good features and depend- But why take our word for it, when Canon,R) ability of the original, and more. you can prove it to yourself-on-the- Canon Professional Motion Picture Division Starting with more lens, for greater job and free. For a limited time, at 10 Nevada Drive. Lake Success, New York 11040(516) 488-6700 versatility: a 12.5-75mm Macro Zoom participating Canon dealers you can 123 East Paularino Avenue. Costa Mesa. that focuses as close as 31/i' Rack try a new Scoopic 16M for a week. California 92626(714) 979-6000 focuses continuously to distant With one tiny, friendly catch. Once you Canon Optics & Business Machines Canada. Ltd. objects. And optically dollies forward try our new camera, you'll want to 3245 American Drive, Mississauga, Ontario and back, with constant field size. make it your new camera, no matter (416) 678-2730 how attached you've become to the one you're using. To make the deal Circle 175 on Reader Service Card SEPTEMBER, 1975-BM/E video equip, video camera acces-TFT see ad p 136 Raleigh 27606 THE SOURCE '75 sories, video editors 919-828-2311 Canon USA see ad p 101 BROADCAST SERVICES CO. Line: video systems P.O. Box 85 Line: audio & video products VIDEOSOUND Selma 27576 Strand Century see ad p 102 CVS see ad p 122 1458 Slaterville Rd. 919-284-2102 STANDARD THEATRE SUPPLY TeleMation see ad p 81 Ithaca 14850 Line: full line of radio equip CO. 607-272-2060 SONOCRAFT CORP. 125 Higgins St. Line: full line of audio/video equip A.W. GREESON, JR. Greensboro 27220 29 W. 36th St. TeleMation see ad p 81 219 Homewood Ave. New York 10018 919-272-6165 Greensboro 27403 Line: cameras & accessories Line: audio & video equip WINDSOR TOTAL VIDEO 919-292-1791 AKAI see ad p 13 652 First Ave. Line: full line audio & video equip,Cinema Products see ads pgs 77, CVS see ad p 122 New York 10016 RF monitoring equip 83 TeleMation see ad p 81 212-725-8080 McMartin Industries see ads pgsTECHNICAL VIDEO SYSTEMS Viscount see ad p 98 Line: videotape 18, 65, 90 & 135 1148 Burke St. SOUND SYSTEMS INC. XEDIT CORP. Thomson-CSF Labs see ad p 21 Winston-Salem 27101 42-12 28th St. 919-725-2026 182-25 Tudor Rd. HAMMOND ELECTRONICS Line: audio & video equip, CCTV Long Island City 11101 Jamaica Estates 11432 2923 Pacific Ave. 212-786-4474 212-380-1592 systems Greensboro 21728 CVS see ad p 122 Line: full line of audio/video equip Line: full line of audio equip 919-275-6391 TeleMation see ad p 81 Dynasciences see ad p 96 Inovonics see ad p 134 Line: audio components Strand Century see ad p 102 TEL-COM, INC. ADAMS & ASSOCIATES, INC. Aristocart see ad .D 136 TeleMation see ad p 81 1475 East Henrietta Rd. P.O. Box 9256 Rochester 14623 1300 Westover Ter. KIRKMAN ELECTRONICS, INC. P.D. THOMPSON 716-442-7900 Greensboro 27408 Drawer K 2550 Weymouth Rd. Line: CCTV systems 919-272-6838 Salem Station Winston-Salem 27103 Line: audio components Winston Salem 27108 919-765-3157 TELEMERICA INC. 919-724-0541 Line: full line broadcast equip (audio 25 W. 43rd St. Line: video systems & video) New York 10036 Datavision see ad p 125 212-687-0370 LEE ASSOCS. Lenco Electronics see ad p 79 Line: audio & broadcast products NORTH CAROLINA P.O. Box 18833 McMartin Industries see ads pgs CVS see ad p 122 Raleigh 27609 18, 65, 90 & 135 919-787-5818 TELEVISION EQUIPMENT Line: test instruments ASSOCIATES APPLIED VIDEO CONCEPTS LTD. Marconi see ad p 119 Box 1391 3800 Menton Dr. Bayville 11709 Raleigh 27609 NELCO TECHNICAL VIDEO NORTH DAKOTA 516-628-8068 Line: video equip SYSTEMS Line: brand line radio & TV equip;Canon USA see ad p 101 1148 Burke St. accessories Strand Century see ad p 102 Winston-Salem 27101 K&M ELECTRONICS 919-722-6181 VIDEO COMPONENTS INC. BCS ASSOCS. 306 N. University Dr. 1310 Beamon Pl. Line: video equip Fargo 58102 601 S. Main St. AKAI see ad p 13 Spring Valley 10977 Greensboro 27408 Line: full line video equip 914-356-3700 919-273-1918 SOUTHEASTERN SIGHT & SOUND Lenco Electronics see ad p 79 Line: camera lenses, full line CCTVLine: video products 1717 South Saunders St. continued on page 111 PERFECT YOUR CCTV SYSTEM 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

COSMICAR COSMICAR OPTICAL CO., LTD. 424, Higashi-Oizumi, Nerima-ku, Tokyo, Japan Cable Address: "MOVIEKINO TOKYO" U.S. Representative & Service Office: Asahi Optical (America) Inc. 15 East 26th Street, New York, N.Y. 10010, U.S.A. Circle 176 on Reader Service Card

SEPTEMBER, 1975-BM/E The COHU 1550 Compare features of telecines available in today's market and you will quickly see why Cohu's 1550 "Performer" is proclaimed the standard in the industry and stands as a GIANT in terms of performance. SMPTE slides look great on the 1550, but more importantly its superior performance can be verified by its ability to handle the typical everyday quality of program source material. Technically, the 1550 gives you 700 -line center and 600 -line corner resolution, manual Instant Paint, automatic black and

white color balance, response for 2 to 1 increase in light is 70 milliseconds to within 90% of final value with zero overshoot, gamma control continuously variable from 0.4 to 1, less than 1% geometric distortion, 52 dB minimum signal-to-noise ratio, unsurpassed colorimetry, and fully sealed electron beam coated optics. Cohu's new color encoder/image enhancer/auto balance unit, the Model 9900, is standard equipment on the 1550. It provides automatic two -level horizontal and vertical detail enhancement and adjustable detail coring with both manual and automatic detail gain including remote control of level. The encoded color signal meets all applicable NTSC, EIA, and FCC specifications. Other user advantages are vertical interval reference insertion, full or split color bars, plus remote control of color burst, color bars and chroma. Don't buy any telecine until you have seen the GIANT. Contact your local Cohu sales office or Cohu, Inc., Electronics Division, P.O. Box 623, San Diego, CA 92112. Telephone (714) 277-6700. TWX 910-335-1244.

YOU EXPECT I-1 MORE FROM ELECTRONICS DIVISION ...AND SAN DIEGO CALIFORNIA YOU GET IT.

COHU SALES OFFICES: NEW ENGLAND Bedford, MA 617-275-0370 NEW YORK Florham Park, NJ 201. 377-6636 WASHINGTON, DC 301-656-3061 PENNSYLVANIA Wayne 215-688-7325 GREAT LAKES Michigan City, IN 219-874-3333 NORTH CENTRAL STATES Lincoln. NE 402-467-2900 SOUTHEAST Orlando, FL 305-896-4881, Huntsvile, AL 205-881-6220; Greensboro, NC 919-213-1918 ROCKY MOUNTAIN Denver. CO 303-573-8835 TEXAS Arlington 817-461-1707 CALIFORNIA San Diego 714-278-8931; Costa Mesa 213-869-5884, Cerntos 213-926.7002; Palo Alto 415-326-0280

AleCircle 177 on Reader Service Card TAPE CARTRidqE MACHINES

SERIES 2000 SERIES 3000 SERIES 4000 MULTI -DECKS Audio CONSOLES

......

VERSA CONSOL E 50 SERIES MONO 100/200 SERIES SLIDE -TYPE MONO AND STEREO MONO AND STEREO Audio AMPLIFIERS

*too IP

CLE-500 CLE-FM CLA 20/40A BETIV1S-100/200 SOUND BRITENER SOUND COMPRESSOR/ TURNTABLE BRITENER LIMITER PRE -AMPLIFIERS AMPLIFIER

ACCESSORIES

Fault/Splice Detectors Sequencers/Switchers Remote Controls Phase-Lok

Head Brackets Distribution Amps Monitor Amps Telephone Answering

Systems Tape Tape Cartridges Alignment Tapes Test Tapes Tape

Winders/Loaders Delay -ape Cartridges Rebuilding/Reconditioning Services

Maintenance Supplies/Cleaners Heads Demagnetizers Erasers Micro-

phones H3adphones Turntables Tape Cart Racks Control Room Furni-

ture Studio Clocks

BROADCAST ELECTRONICS INC. -A FILMWAYS COMPANY - 8810 BROOKVILLE ROAD SILVER SPRING, MARYLAND, 20910 PHONE 301-588-4983 TWX 710-825-0432 ::Ircle 178 on Reader Service Card CORP. Line: full line radio equip CVS see ad p 122 THE SOURCE '75 2971 Bluefield Ave. Control Design see ad p 63 Dynasciences see ad p 96 Dayton 45414 Strand Century see ad p 102 513-278-7937 OHIO INSTRUMENTS 7180 Brundage Road OHIO Line: video equip, CCTV systems DOUG BROWN ENTERPRISES CVS see ad p 122 Waldo 43356 Box 7494 Viscount see ad p 98 614-726-4242 Tulsa 74105 Line: test instruments 918-747-5045 ABCOM SALES ELECTRONIC PRODUCTS CORP. Marconi see ad p 119 Line: audio components 1166 Chesapeake Ave. Stanton Magnetics see ad p 34 16006 Waterloo J.B. PARENT CO. Columbus 43212 Cleveland 44110 614-486-9684 19706 Center Ridge Rd. Line: audio & video equip Cleveland 44116 Line: audio components CVS see ad p 122 OREGON Superscope see ad p 117 216-333-9955 Dynasciences see ad p 96 Line: audio equip APPLIED VIDEO ELECTRONICS Strand Century see ad p 102 AKG see ad p 51 EARL & BROWN CO., INC. INC. TeleMation see ad p 81 P.O. Box 19406 P.O. Box 25 RIXAN ASSOCS. GOSS COMMUNICATIONS 5062 Wadsworth Rd. Portland 97219 Brunswick 44212 1450 E. 289th St. 503-245-2283 216-225-4443 Dayton 45414 Line: audio equip Wickliffe 44092 513-278-4216 Line: full line video equip 216-944-0268 AKG see ad p 51 Lenco Electronics see ad p 79 Line: audio & broadcast equip Une: video equip OREGON A/V SYSTEMS, INC. AKAI see ad p 13 Modular Audio Products see ad p AUDIO LOGIC 120 117 S.W. Front Ave. 601 Rockwell Portland 97204 KLOPF A/V CO. A.C. WAHL & ASSOCS. Cleveland 44114 3381 Successful Way Cincinnati 45215 503-224-4313 216-771-1972 Dayton 45414 Line: audio & video products Line: audio equip 513-821-3270 AKAI see ad p 13 513-236-5500 Lyndhurst 44124 Line: audio & video products CVS see ad p 122 A/V MEDIA, INC. 216-449-1788 Inovonics see ad p 134 3344 W. Broad St. Dynasciences see ad p 96 Line: audio components Lenco Electronics see ad p 79 Lenco Electronics see ad p 79 Columbus 43204 Tech Labs see ad p 90 TeleMation see ad p 81 614-272-0014 TeleMation see ad p 81 Line: video and audio products Viscount see ad p 98 REX RECORDING CO. MANDABACH ASSOCIATES 1931 S.E. Morrison St. CENTRAL VIDEO SYSTEMS, INC. OKLAHOMA Portland 97214 7311 Valley View Dr. 1350 Crestwood Ave. Columbus 43227 503-233-2471 Independence 44131 Line: audio components 216-524-9696 614-235-0265 Line: audio components HILL RADIO EQUIP. CO. Stanton Magnetics seead p 34 Line: video products Rte 6, Box 622 DOUG COOK & ASSOCS. McFADDEN SALES, INC. Claremore 74017 2185 Trent Rd. 150 E. Broad St. 918-341-5240 PENNSYLVANIA Columbus 43229 Columbus 43215 Line: audio components 614-471-4114 614-221-3363 Stanton Magnetics see ad p 34 GEORGE M. CONNEEN CO., INC. Line: audio & video equip, transmitters Line: audio components SYSTA-MATICS INC. 24 S. Newtown St. Rd. McMartin Industries see ads pgs 18, 510 N. Sheridan Newtown Square 19073 65, 90 & 135 DICK MURRAY Box 222 Tulsa 74112 Line: audio equip DAYTON COMMUNICATIONS Celina 45822 Line: audio & video equip continued on page 112 PROFESSIONALS SPECIALIZE SHUNTRON enowrir...= EMT COO. MODEL 367 0 SMPTEmat Switcher

Color Switcher Color NTSC Genlock [11999 Fort - Sync Generator SMPTE Edit Code Ari211 Reader/Generator

Interface Panel CNN Post Production Switcher V$3,300 List CHROMATIC DUET A $3,780 List MODEL 370 Special Effects Generator

10 Basic Wipe Patterns Dissolve to Effects Built-in Color Back- ground Generator Over 1000 Units Sold Production Switcher

... SHINTRONCambridge, MA 02142 (617)491-8700 The Precision People

Circle 179 on Reader Service Card SEPTEMBER, 1975-BM/E cable, cable connectors; broadcast307 E. Carson St. THE SOURCE '75 antennas; TV and FM modulators, Pittsburgh 15219 SOUTH CAROLINA processors; microwave systems 412-381-2826 D&H DISTRIBUTING CO. ESTERSOHN ASSOCS. Line: CCTV systems, video equip 2525 N. 7th St. 541 Davisville Rd. Lenco Electronics see d p 79 Harrisburg R.L. BRYAN CO. Willow Grove 19090 HENRY RHEA P.O. Drawer 368 Line: lighting equip 215-657-1414 1229 Hunt Club La. Columbia 29202 Strand Century see ad p 102 Line: audio components Media 19063 803-779-3560 EASTERN TELECOM, INC. Superscope see ad p 117 215-566-6558 Line: audio & video products Line: audio equip; transmitters 700 Seco Rd. OSCAR H. HIRT, INC. AKAI see ad p 13 Monroeville 15146 41 N. 11th St. RPC ELECTRONICS 412-373-2170 CALHOUN A/V CO. Philadelphia 19107 620 Alpha Drive 1217 Broad River Rd. Line: CCTV systems Line: cameras & accessories Pittsburgh 15238 Columbia 29210 MILTON ESHELMAN CO. Cinema Products see ads pgs 77, 83 412-782-3770 803-772-9130 2902 Sycamore St. HOLT TECHNICAL SERVICE Line: full line of audio/video equip Line: audio & video products Harrisburg 17111 428 Broadhead Ave. TeleMation see ad p 81 CVS see ad p 122 717-564-2437 Bethlehem 18016 VAL-TRONICS, INC. Lenco Electronics see ad p 79 Line: CCTV systems 215-865-3775 10 Park Bldg. Strand Century see ad p 102 O.H. HIRT Line: audio & video products Pittsten 18640 41 N. 11th St. Control Design see ad p 63 717-655-5937 Line: audio & video equip, RF moni- Philadelphia 19107 LERRO ELECTRICAL CORP. TENNESSEE Line: lighting equip 3125 N. Broad St. tors Strand Century see ad p 102 Philadelphia 19132 Control Design see ad p 63 McMartin Industries see ads pgs L&M ASSOCS. 215-223-8200 Line: video equip 18, 65, 90 & 135 ALLIED SOUND -VISUAL 965-A Bristol Pike Stanton Magnetics see ad p 34 EDUCATION DIV. Andalusia 19020 MARCO VIDEO SYSTEMS, INC. WAGGONER-VERHILL ASSOCS. 2741 Nonconnah Blvd. S. Suite 320 215-639-3100 6114 North 20th St. Memphis 38132 Line: test instruments Philadelphia 19138 Pittsburgh 15235 412-241-5205 901-396-4747 Marconi see ad p 119 215-849-9500 401 Spence Lane Line: CCTV systems Line: audio components COMMUNICATION MEDIAS Tech Labs see ad p 90 Nashville 37210 P.O. Box 54 PEIRCE PHELPS, INC. 615-254-6473 Allentown 18105 2000 N. 59th St. Line: audio & video equip 215-437-0607 Philadelphia 19131 RHODE ISLAND CVS see ad p 122 Line: audio components,fullline 215-477-9000 Dynasciences see ad p 96 audio & video equip Line: audio & video equip, CCTV, Lenco Electronics see ad p 79 Roh see ad p 103 video systems Strand Century see ad p 102 WRH PRODUCTIONS Stanton Magnetics see ad p 34 CVS see ad p 122 BILL BILLINGS PHOTO Dynasciences see ad p 96 5 Industrial Way JERRY CONN & ASSOC. Riverside 02915 129 S. Front Ave. 550 Cleveland Ave. Strand Century see ad p 102 Rockwood 37854 TeleMation see ad p 81 401-434-6272 Chambersburg 17201 Line:fullline audio components,Line: photo products 717-263-8258 PENNSYLVANIA EDUCATIONAL equip RF monitors Cinema Products see ads pgs 77, Line: CATV electronic units; coaxial AIDS Stanton Magnetics see ad p 34 83 continued on page 114 PERFECT TIMING

Programmer/Comparators and Network Joiners

Whether your stationis based in New York, Honolulu or any To meet the needs of Affiliates ESE has designed the Network in between, perfect timing of station breaks and com- Joiner. A solid-state Re -programmable memory united with an mercial time-outsisessential. To meet your exacting timing ESE clock or timer to provide as many user -programmed single requirements ESE now offers two precision timing components. pole contact closures as needed. Supplied with manual override To fulfill the needs of Network Broadcasters ESE has designed and mode selection to provide maximum programming flexibility. a complete line of Programmer/Comparators. Rugged The Programmer/Comparator and the Network Joiner thumbwheel programmers coupled with a reliable ESE are furnished on a 19" aluminum relay rack mounting clockor timertoprovide a singlepolecontact panel. The prices of Programmer/Comparators start at closure (1 Amp contactrating)forthe length of $305. The price of the 10 program P/C shown above is time program matches display.In addition ESE P/C's $1100. The base price of the Network Joiner is $1000. are available with a 10 second prerollcuinglite. Custom options andspecialordersareavailable. Write, Wire or Call Today: 5051/2 Centinela Avenue Inglewood, California 90302 (213) 647.3021

Circle 180 on Reader Service Card

112 SEPTEMBER, 1975-BM/E Specialized products for the special needs of the broadcast industry.

Optek 1400 Transmitter Demodulator A precision, low cost, no-nonsense television visual demodulator, the 1400 was designed to provide ideal detection and filter characteristics that allow monitoring and measurement of the transmitted visual signal. A sound notch is included that permits measurement without interference from the aural transmitter. The 1400 is perfectly suited for interface with Automatic Video Correctors in "closed - loop" transmitter pre -correction applications.

Optek 7400 Automatic Bulk Tape Degauser Fully automatic, the 7400 provides hands-off operation and erasure to levels in excess of -90dB*. Audio and video reel sizes up to 16 inches, as well as quadruplex cassettes and cartridges, are quickly and easily accommodated. A unique Flux Pattern Selector assures maximum magnetic tape erasure, no matter what the recording format of the tape. The 7400 gives complete and automatic erasure of tape in less than one minute. For standard ferrous oxide audio tape. Optek 1010B Video Noise Meter The 1010B permits rapid and accurate measurement of signal-to-noise ratio in any standard video waveform. A tangential measurement technique permits precise measurement without interrupting system operation. Stable design and built-in calibration insure accuracy to better than ±0.5 dB throughout the range 20 dB to 55 dB, with SNR shown directly on a large LED display.

Optek Stor-Mori" Storage Systems Low cost Stor-Mor** mobile storage systems save valuable studio floor space while providing double the storage capacity for magnetic tape, instruments, etc., and faster, smoother, quieter access to any required item. These systems are custom -designed to fit into your existing facility without expensive remodeling. One moveable aisle goes where you want it to, effortlessly. Featuring all -steel construction, the shelving is mounted on moveable carriages that OPTEK PRODUCTS travel on 5" steel wheels along tracks that are completely flush with the finished Marketed Exclusively by: floor. Each carriage, operating either mechanically or electrically, will handle up to BROADCAST COMMUNICATIONS 60,000 pounds and provides positive, effortless tracking. The floor is completely DEVICES, INC. finished with attractive and durable 1/4 -inch rubber -backed carpet. 5526 E. La Palma Avenue "'Stor-Mor is a trademark of the Internationa Products Company Anaheim, California 92807 (714) 528-9505 1850 Warburton Avenue Suite 203 Santa Clara, California 95050 (408) 984-6614 Conventional Storage Stor-Mor. Same Amount of Storage In About Half The Space.

Represented Elsewhere by: Didier-Denver Glentronix, Ltd. Lew Radford Associates Evergreen, Colorado 80439 Don Mills, Ontario, Canada Atlanta, Georgia 30319 (303) 674-6000 (416) 444-8497 (404) 237-6097 H. M. Dyer Electronics Landy Associates Sudduth Associates BROADCAST COMMUNICATIONS DEVICES INC Farmington Hills, Michigan 48024 Cherry Hill, New Jersey 88034 Carrollton, Texas 75006 (313) 478-2157 (609) 424-4660 (214) 242-2690

Circle 181 on Reader Service Card SEPTEMBER, 1975-BM/E 113 AKAI see ad p 13 equip, audio & video equip, trans-83 THE SOURCE '75 mitters MEDIA ASSOCS. McMartin Industries see ads pgsJOHN FITZGERALD P.O. Box 249 13844 Peyton Dr. Franklin 37064 18, 65, 90 & 135 UREI see ad p 131 Dallas 75240 Line: full line radio equip 214-631-5470 Control Design see ad p 63 ARNOLD BARNES CO. Line: video equip; char generators BROADCAST DISTRIBUTORS MOTION PICTURE P.O. Box 9748 Bible Place Austin 78766 GEE-GIBSON ELECTRONIC ENT Cleveland 37311 LABORATORIES, INC. 4002 E. Houston Hwy. 781 S. Main St. 512-454-4371 615-472-8200 7616 LBJ Freeway, Suite 401 Victoria 77901 Line: audio components and equip Memphis 38102 512-578-4323 Line: cameras & accessories Dallas 75240 214-233-5535 Line: audio, video products BROADCAST EQUIPMENT & Cinema Products see ads pgs 77, Control Design see ad p 63 SUPPLY CO. 83 3801 Kirby, Suite 834 P.O. Box 3141 Houston 77006 Stanton Magnetics see ad p 34 Bristol 37620 OPUS II ASSOCS. 713-523-4333 GRAVCO SALES INC. 615-968-7342 4284 Summer Ave. 802 Lingco Redbird Airport D Line: full line audio equip Memphis 38122 Richardson 75080 Dallas 75221 Stanton Magnetics see ad p 34 901-682-2455 214-235-4553 214-330-1245 Line: full line audio/video equip Line: audio, video, broadcast prod- CLW BROADCASTERS Line:videoprocessingequip.; TeleMation see ad p 81 ucts 2004 S. Orchard Knob Ave. switchers STUDIO SUPPLY CO. AKAI see ad p 13 Chattanooga 37404 CVS see ad p 122 GUARANTEE RADIO SUPPLY Line: full line of radio equip P.O. Box 280 CORP. Control Design see ad p 63 Nashville 37202 BRADENCO 1314 Iturbide St. 615-327-3075 2646 Andjon Drive CONSOLIDATED ELECTRONIC Laredo 78040 Line:audiocomponents,equip; Dallas 75220 512-722-3233 SYSTEMS recording accessories 214-358-3278 Line: audio components Knoxville Inovonics see ad p 134 Line: test instruments 615-947-2881 Marconi see ad p 119 INDUSTRIAL AV INC. Line: audio and video products CROUSE-KIMZEY CO. 7315 Ashcroft # 116 CREATIVE EXPRESS 3507 W. Vickery Box 9830 Houston 77036 1905 Broadway TEXAS Ft. Worth 76107 Line: video equip Nashville 37203 817-737-9911 CVS see ad p 122 615-327-1573 Line: audio components BOB LANDINGHAM Line: audio products ACCURATE SOUND CORP. Stanton Magnetics see ad p 34 2121 Santa Anne Blvd. DELTRONICS 1206 Euless Blvd. Suite 106 D&J SALES COMPANY Dallas 75028 819 Woodland St. Euless 76039 2307 59 St. 214-327-7311 Nashville 37206 817-267-3911 Lubbock 79412 Line: video proc amp switchers 615-262-3177 Line: full line of audio equip 806-792-0001 Datavision see ad p 125 Line: video systems Inovonics see ad p 134 Line: audio products, transmitters LEE SALES CO. LOFSTROM ELECTRONICS BOB AMOR & ASSOCS. VICTOR DUNCAN INC. 5635 Yale Blvd. Empire Bldg. 916 Green Hill Rd. 2659 Fondren Ave. Dallas Glassport 15045 Dallas 75232 Dallas 75206 214-363-3831 412-461-2116 214-823-7820 Line: cameras & accessories Line: audio products Line: video equip Line: audio consoles, FM monitoringCinema Products see ads pgs 77, continued on page 116

Television Products Company 9016 Aviation Blvd.Inglewood, CA 90301 For years, most of the major network studios have considered anything but pneumatic pedestals obsolete. The tough requirements of day-to-day use has proven TVP Pedestals to be reliable, flexible P-50 P-30 P-20 and maintenance free. Our superior pneumatic counter- balance system is used in all of these. With T this, cameras float on telescoping columns that glide on ball -bearing races. Camera height can be raised or lowered at the touch of a finger ... smoothly. And without lead weights, there's less weight to have to push around. The 360° steering is adjustable from crabbing to tracking at the touch of a foot pedal. This mechanism has been specially designed for quiet operation. You won't find 8 -inch tires on most pedestals, but they're standard equipment on ours. Bigger is better: not only do they roll easier, but they'll transmit less vibration to the camera. If you're worried about maintenance, you'll be glad to know that we've used sealed ball bearings wherever possible. The air system requires only one -point lubrication, once a year. And everything is designed Column Range 36" 30" 20" for easy access. Min Max Height* 21" to 57" 25" to 55" 305/8" to 505/8" Compare these three with any other Load Capacity 300 lbs. 100 lbs. 285 lbs pedestals available-you'll find them a very * Measured from the top of the pan -head' attractive combination of quality and price. mount to the floor.

Circle 182 on Reader Service Card 114 SEPTEMBER, 1975-BM/E 11111111It I4IIJIIINI-'..._..- Tr! VIII II .11.101, 't

IhII 41111i: e1, 11111l i'1111;,111111411101 "Itt',1 '4101111,10110 u, t, 1/1111,1

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:On.t ti,ll tit oloontalli t 111111111111,11,,U4s011441

Aminn111111111110111111111MININIUM1N11tilltt1111,1 VIA MICROWAVE ASSOCIATES.

More and more TV stations ters...to portable van news gathering. So if you're are bringing the excitement models...to fixed location considering ENG, consider and drama of electronic news transmitter/receivers, we us. Making it easier for you gathering (ENG) to their sta- not only make it, we perform is one reason Microwave tion's programming. And site surveys, install it and Associates has become more of them are coming to train your people to use it as number one in ENG at TV us than to anyone else in well. And we've got service stations coast -to -coast. the world. centers nationwide, so we're Microwave Associates, We're Microwave Associ- never very far away. Communications Equipment ates. And if it has anything to Microwave Associates is Division, Burlington, Mass. do with microwave video the only company making a 01803. 617-272-3000. equipment, from miniature complete line of microwave battery operated transmit- equipment for electronic Circle 183 on Reader Service Card

MICROWAVE ASSOCIATES cutyourediting THE SOURCE '75 LYKES ELECTRONICS TAFT BROADCASTING CORP. P.O. Box 26816 4808 San Felipe St. Houston 77207 Houston 77027 Line: audio & video equip 713-622-1010 down to size with Dynasciences see ad p 96 Line: video equip MARTIN, ZIENKOSKY, BROWNE &CVS see ad p 122 ASSOCS. Lenco Electronics see ad p 79 Central Dynamics' EDS-200 3801 Kirby, Suite 834 TEXAS VIDEO SYSTEMS Houston 77006 10209 Plano Rd. 713-523-4333 Dallas 75238 13731 Omega Rd. 214-341-1771 Dallas 75240 Line: CCTV systems, video equip 214-233-5535 Lenco Electronics see ad p 79 P.O. Box 9748 Austin 78766 RUSSELL TREVILLIAN 512-454-4371 2908 Mulberry Pasadena Line: full line of audio & video equip713-941-7272 Control Design see ad p 63 Line: video equip Thomson-CSF Labs see ad p 21 American Data Corp see ad p 55 TFT see ad p 136 UNIVERSAL VIDEO MILLER & ASSOCS. 4304 Beltwood Pkwy N. 11929 Radium San Antonio 78216 Dallas 75240 512-341-1492 214-661-5002 Line: full line audio/video equip Line: audio components TeleMation see ad p 81 Superscope see ad p 117 VIDEO ELECTRONICS The microcomputer NATIONAL BROADCAST EQUIP. 3000 Carlisle St. 1401 S. Floyd Rd. Dallas 75204 Richardson 75080 Audio/Video Tape Editor for 214-690-3131 214-741-1440 Line: audio and video equipment Line: CCTV systems, audio & video equip Commercial, Industrial and PHOTOGRAPHIC SUPPLIERS CVS see ad p 122 800 Montana Ave. TeleMation see ad p 81 El Paso 79902 VIDEO SYSTEMS Educational Applications 915-533-9828 Line: video equip 2000 A Govenors Circle AKAI see ad p 13 Houston 77018 The EDS-200 Automatic Editor and Synchronizer provides 713-686-9641 PROFESSIONAL AUDIO Line: video systems professional and economical assembly of mastertapes. SERVICES Dynasciences see ad p 96 Utilizing its built-in SMPTE Time Code Reader, Micro- P.O. Box 1953 Ft. Worth 76101 WHALIN'S PRO AUDIO SALES computer and program, the EDS-200 automatically 817-536-6254 2910 Buena Vista locates, previews and records audio and video edits Line: audio components Arlington 76010 Aristocart see ad p 136 817-261-8197 accurately . all to a single frame! Stanton Magnetics see ad p 34 Line:fulllineaudio & recording equip Single button scene location, entry and storage, audio SAVCO Dolby see ad p 121 and video synchronizing and switching (in all modes), P.O. Box 427 Inovonics see ad p 134 Richardson 75080 Stanton Magnetics see ad p 34 automatic cueing, and simultaneous machine control cr. ts 214-234-1841 the tedium and time of manual editing. The EDS-200's Line: wide range of products foWYBORNY SALES CO. 6619 Shady Brook #.3169 modular design, multi -machine control and available radio, TV & sound recording Control Design see ad p 63 Dallas 75206 options allow for easy and economical expansion to meat 214-691-6484 Wilkinson see ad p 99 Suite #.108 more demanding post -production requirements. J.Y. SCHOONMAKER CO. 7315 Ashcroft 2995 Ladybird Lane Houston 77036 Other features include: Dallas 75220 713-772-0961 214-357-8481 Line: audio components, equip Can control several Quad, Helical and Multi -Track Line: tape reco'ders, audio equip AKG see ad p 51 Audio machines SOUND IDEAS ASSOCS. Built-in, sensitive and accurate SMPTE Time Code 6123 Spruce Forest Reader compensates for poorly recorded time code and Houston 77018 5641 Yale Blvd. UTAH can read in all modes. Dallas Performs Time Code duration calculations. Line: video equip Canon USA see ad p 101 BOB BACON Keyboard controls permit simple entry of new data, 2536 Campus Dr. SOUTHWEST ELECT. corrections or changes. Dallas 75230 Salt Lake City 84121 214-233-9816 Line: video equip Automatically stores scene locations from a single CVS see ad p 122 control. Houston 77035 713-729-1670 B&B ELECTRONIC PRODUCTS Audio & Video operations are selectively independent Line: audio components 445 E. 2nd St. S. or combined. Tech Labs see ad p 90 Salt Lake City 84111 Fully compatible for all on-line and off-line editing STUDIO SOUND SERVICE 801-524-2500 1401-F S. Floyd Rd. Line: audio equip operations NTSC or PAL. Richardson 75080 AKG see ad p 51 214-690-3131 BROADCAST SERVICE INC. For the complete story on the EDS-200, Video Tape Line: audio components, equip 145 Social Hall Ave. Editing and associated equipment. call or write today! Stanton Magnetics see ad p 34 Salt Lake City 84111 GENE SUDDUTH 801-524-2500 2809 Raintree Drive Line: full line audio & video equip Carrollton 75006 Thomson-CSF Labs see ad p 21 214-242-2690 CARTER SUPPLY CO. Line: full line vide equip 3208 Washington Blvd. Computer Image see ad p 11 P.O. Box 9197 Datatek see ad p 75 Ogden 84401 Datavision see ad p 125 801-393-8603 CENTRAL DYNAMICS LTD Roh see ad p 103 continued on page 118 Canada: 147 Hymus BlvdMontreal, Que H9R-1G1514-697-0811 Circle 184 on Reader Service Card U.S.A. 230 Livingston Street, Northvale, N J 07647 201-7671300 SEPTEMBER, 1975-BM/E BEAT 'EDI TO THE DRAW

With the Superscope Action -Corder

ReadYwhen you are.WithAiMfor the heart of the Fire, flood or fuel shortage the fastest news team in town.story -even if you have to go-one disaster is enough. You Superscope's rugged, pocket -over the crowd to get it. Thedon't need risky erasures, fluffs sized C-106 Action -Corder withoptional Pistol Grip gives youor blank spots. With the Pistol built-in condenser microphone.a full arm's reach and one freeGrip stop/start switch, you can And the ingenious, optionalhand. No cords, microphoneedit as you go and integrate Pistol Grip accessory that letscables, plugs or worthlessyour own commentary when you stop and start the Action -weight. You'll be wrapped up inyou're ready. Now that's good Corder in the time it takes tothe action-not in the wires. news! pull the trigger - switch. Superscope C-105 Professional Three -Head Cassette Recorder features three heads for tape / source monitoring that allow instant comparison of program source to actual recording. A built-in condenser microphone that picks up any sound within earshot. And special features for taped discussions and professional interviews that include a special telephone pickup jack and a mechanical instant pause control. For more convenience, get the Superscope EC -3S hand-held condenser microphone with remote stop/start switch. When not in use, the microphone snaps into a unique slide holder on the shoulder strap to leave your hands free.

"11111.11111-Superscope EC -12B Tie Clasp/Wand Electret Microphone engineered for use with any portable recorder or PA system. Telescopic wand extends to 171/2" for hand-held or podium use. Unscrew the wand, and microphone instantly converts for tie clasp application. See the entire line of Superscope professional tape equipment, microphones and accessories at your nearest Superscope dealer. from the makers of Marantz SUPERSCOPE Listen to us.

©1975 Superscope. Inc.. 8150 Vineland Ave.. Sun Valley. CA 91352. In Europe: Superscope Europe. S.A.. Brussels. Belgium. In Canada. Superscope Canada. Ltd.. Ontario. Prices andmodels subject to change without notice. Consult the Yellow Pages for your nearest Superscope dealer. Circle 185 on Reader Service Card SEPTEMBER, 1975-BM/E 117 PROFESSIONAL SOUNDS INC. THE SOURCE '75 711 W. Broad St. Falls Church 22046 703-533-0011 Line: full line of audio equip Line: video equip Inovonics see ad p 134 AKAI see ad p 13 PROGRAMMED MATERIALS, INC. WILL THE H.P. MARKETING Box 360, RFD #7 2361 S. Main Roanoke 24018 TELEVISION CHARACTER GENERATOR Salt Lake City 84115 703-774-1974 801-466-6105 Line: audio equip; transmitters THAT YOU ARE CONSIDERING Line: audio equip VIRGINIA MELODY & SOUND INC. UREI see ad p 131 3602 Melrose Ave. N.W. INCLUDE THESE AS MEDIA WEST INC. Roanoke 24017 187 West 3100 South, Box 458 703-344-5563 STANDARD FEATURES? Bountiful 84010 Line: audio components 801-295-3308 Stanton Magnetics see ad p 34 Line:audio components &radio equip * Practical Character Size Control Design see ad p 63 Stanton Magnetics see ad p 34 WASHINGTON * True Horizontal Edging STOCKDALE & CO. INC. 200 E. First South * 4 Page Elastic Memory Salt Lake City 84111 AERO MARC INC. Line: cameras & accessories 5518 Empire Way S. Cinema Products see ads pgs 77,Seattle 98118 * Window Format Positioning 83 206-725-1400 Line: audio & video products * 20 Auxiliary Control Keys Dynasciences see ad p 96 Lenco Electronics see ad p 79 * 24 Flag Function Combinations VERMONT ANIXTER-PRUZAN 1963 First Ave. So. * Crawl on any Display Line Seattle 98134 GNS TELESYSTEMS CORP. Line: Sony studio video equip full Box 456 Shelburne Shopping Park lineof CATV equip,cablecon- * Roll in any Display Segment Shelburne 05482 structionaccessories,toolshead 802-985-2675 end,passives,testequip,power Line: full line of audio/video equip supplies TeleMation see ad p 81 BAILIE VIDEO WORLD WILL THE 170 Denny Way Seattle 98109 SYSTEM PERMIT EXPANSION 206-682-3770 VIRGINIA Line: video equip TO INCLUDE THESE AKAI see ad p 13 AIRPORT INDUSTRIAL PARK BENNETT ENGINEERING CO. IMPORTANT OPTIONS? 1395 Air Rail Ave. Box 23 Virginia Beach 23455 Mercer Island 98040 804-464-9323 Line: audio & video products Line: video equip Thomson-CSF Labs see ad p 21 * Independent Edit Channel AKAI see ad p 13 TFT see ad p 136 World Video Inc see ad p 128 AVEC ELECTRONICS CORP. * 3 Separate Output Displays 2002 Staples Mill Rd. BROADCAST SUPPLY CO. Richmond 23230 2607 Bridgeport Way W. * 6 Individual Elastic Memories 804-359-6071 Tacoma 98466 Line: audio & video products 206-565-2301 * Color Billboard Display Lenco Electronics see ad p 79 Line: broadcast products Stanton Magnetics see ad p 34 BROADCAST CONSULTANTS Aristocart see ad p 136 * Color Flag Control Function CORP. 21 N. Wirt St. DAVE CHAMPLIN * Up/Down Time Counter Leesburg 22075 12347 Lake City Way 703-777-8660 Seattle Line: audio equip 206-233-3300 * Time/Day/Date Generator Dolby see ad p 121 Line: audio products * Data Cassette Storage BROADCAST ENGINEERS & CUSTOM VIDEO SYSTEMS EQUIP. REPS. 8320 Lake City Way N.E. Box 4777 Seattle 98115 * 9 x 14 Character Font Richmond 23229 206-752-2080 Line: full line of radio equip Line: audio & video equip * Lower -Case Characters Control Design see ad p 63 TeleMation see ad p 81 DAVID GREEN BROADCAST Viscount see ad p 98 * Foreign Language CONSULTANT DATACOM ASSOCIATES 21 N. Wirt St. 111 Tower Place * Math and Chemistry Symbols Lessburg 22075 Seattle 98109 703-777-8660 206-285-2525 Line: broadcast products Line: recorders, audio consoles, FM Stanton Magnetics see ad p 34 monitors, video equip THE LAIRD TELEMEDIA LEE HARTMAN & SONS INC. Control Design see ad p 63 P.O. Box 659 McMartin Industries see ads pgs MODEL 3600 WILL! 3236 Cove Rd. N.W. 18, 65, 90 & 135 Roanoke 20004 RUSH S. DRAKE 703-366-3494, 3493, 3713 6133 6th Ave. S. Line: full line audio & video eqip Seattle 98108 Thomson-CSF Labs see ad p 21 206-763-2755 MIDWEST CORP. Line: test instruments TELEMEDIA 1395 Air Rail Ave. Marconi see ad p 119 21251 SOUTHIWEST TEMPLE 801 487 6251 I Virginia Beach 23455 EARL & BROWN CO. INC. SALT LAKE CITY, UTAH 84115 804-855-1056 P.O. Box 9285 LTINC. Line: audio & video products Seattle 98109 CVS see ad p 122 Strand Century see ad p 102 continued on page 120 Circle 186 on Reader Service Card

118 SEPTEMBER, 1975-BM/E nit automaticTVmonitoring sets freethe 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 car 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 16 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 national and international In conjunction with a test line signal generator standards. Systems are now operating in seven 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 TELEPHONE: (201) 767-7250 TWX: 710-991-9752 Circle 187 on Reader Service Card 747R-1 AV ELECTRONICS INC. THE SOURCE '75 P.O. Box 505 21675 Doral Rd. Brookfield 53005 206-284-1121 Line: video systems Line: audio equip CAMERA CORNER, INC. AKG see ad p 51 Green Bay GLAZER'S CAMERA SUPPLY 414-494-1151 ForAll Green Bay 1923 3rd Ave. Line: video products Seattle 98101 Line: cameras & accessories CONCORD COMMUNICATIONS Your Cinema Prods see ads pgs 77, 83SYS-TEMS 11901 W. Dearborn Ave. JOHN McCLAMROCK CO. Milwaukee 53226 11206 Des Moines Way S. 414-778-0210 Suite #1108 Line: audio & video products Console Seattle 98168 206-244-9391 WILLIAM McEVOY Line: full line radio equip 2426 Riverview Dr. Control Design see ad p 63 Janesville 53545 Wilkinson see ad p 99 608-752-3613 Components Line: video equip NORTHSTAR AKAI see ad p 13 2150 N. 107th Suite 520 Seattle 98113 MILWAUKEE VIDEO 3422 Line:video production switchers,1024 6th St. sm. pulse & distribution amps, routingMilwaukee 53201 switchers, special effects generators414-224-0660 Viscount see ad p 98 Line: video products CVS see ad p 122 NORTHWEST ELECTRONICS CIFI Strand Century see ad p 102 P.O. Box 3047 Spokane 99220 SATTERFIELD ELECTRONICS 509-535-7652 1900 S. Park St. ca 1 Line: video equip Madison 53701 AKAI see ad p 13 608-257-4807 Viscount see ad p 98 Line: audio & video equip CVS see ad p 122 JOHN NUTTING SEattle VIDEO IMAGES wE LEM 206-775-2707 2400 S. Commerce Drive Line: video products & accessoriesNew Berlin 53151 414-784-2080 Oaf CI PACNOR MARKETING Line: full line audio/video equip from this... 815 W. Ewing St. AKAI see ad p 13 Seattle 98119 TeleMation see ad p 81 Audio Operational Amplifiers Line: video equip Single Channel Canon USA see ad p 101 Dual Channel DON ROSE Booster 19001 40th Place N.E. Seattle 98115 CANADA PC Card Amplifiers 206-363-2200 Microphone Preamplifiers Line: electronic tubes, components Tape and Phono Preamplifiers English Electric Valve see ad p 53 Line Amplifiers ADCOM ELECTRONICS LTD. Mixer Amplifiers SEA-TAC PRODUCTIONS 29-16 Connell Court Power Amplifiers 20103 Des Moines Way S. Toronto, Ont. Seattle 98148 Line: audio & video equip Power Supply Modules 206-878-2505 CVS see ad p 122 Panel Mounted Assemblies Line: audio & broadcast equip Dynasciences see ad p 96 Equalizers Modular Audio Products see ad pADVANCE INDUSTRIAL Compressor-Limiter 120 ELECTRONICS Precision Test Oscillator W.J. WOLFENBARGER 538 Berry St. Stereo Broadcast Console P.O. Box 6715 Winnipeg, Manitoba Input Modules 2217 42nd Ave. S.W. 204-722-0386 Recording Console Input Seattle 98116 Line: video systems Modules 206-932-7747 QUAD/MNIR MIX Line: audio components, radio equipAPPLIED ELECTRONICS Rack Mounted Equipment Control Design see ad p 63 299 Evans Ave. Graphic Equalizer Stanton Magnetics see ad p 34 Toronto M8Z 1 K2 Studio Monitor 416-252-3761 Power Supply Bay No. 1 4519 12th St. N.E. Accessories WEST VIRGINIA Calgary Mounting Racks for Card 403-277-8600 Amplifiers Line: full line radio & TV equip

Input and Output Transformers MOP Collins Radio see ad p 45 Connectors and Sockets ROBERT HARRISON ECHO ' Rte. 3, Box 24 ATLANTIC VIDEO CENTRE Princeton 24720 151 Mountain Rd. 304-425-4665 Moncton, N.B. sao Line: transmitters 506-854-1108 ...to this Wilkinson see ad p 99 Line: video systems 111111 MIDWEST CORP. AUDIO ELECTRONICS CHANNEL 300 First Ave. # 219 1147 -17th Ave. S.W. Nitro 25143 Calgary, Alberta T2T OB7 304-722-2921 403-245-1001 Line: audio & video products Line: audio automation systems NA CD LJ L_ El AKAI see ad p 13 Schafer Electronics see ad p 100 CVS see ad p 122 AUVINIC LTD. Al 010 PR 0 C -31_1C -T-, Inc. 11636 P.M. Favier A UNIT OF MODULAR DEVICES, INC. Montreal Nord 1385 Lakeland Ave., Airport International Plaza WISCONSIN 514-322-4564 Bohemia, New York 11716 516-567-9620 AVIONIX DIVISION continued on page 122 Circle 188 on Reader Service Card

1 20 SEPTEMBER, 1975-BM/E this is all you need to get moving with DolbyFM

NR Ocr Remo. on out lone control A U IP m Donn?FM rMRM IM MMII 338 Dolby !Ammo.. Inc to*

emember the first time you came across cassettes. But the overall results are just 334 FM Broadcast Unit. The unit accurately olbyized cassettes? And how surprised as important. Dolby FM is cleaner, with compresses the signal in accordance with ou were that music could sound so good sparkling high frequencies free of the Dolby B -Type characteristics and 'such a convenient form? limiting. And, of course, noise is reduced, changes the effective transmission time- which often increases the area of good constantto 25 microseconds. This allows Jell, now the same principles are being reception. the station to reduce or eliminate any high sed to improve FM broadcasting. The frequency limiting required previously. udible effect of the Dolby system as used As of August 1975, over 100 US stations FM is a bit more subtle than with have purchased the Dolby Model 324 or

New Vork NY WOXR 96.3 Seattle WA KIXI 95.7 xron OH WAEZ 975 Cincinnati OH WGUC 90.9 Edmond OK KWHP 97.7 Los Angeles CA KGBS 97.1 WRFM 105.1 Skokie IL WCLR 101.9 .bony NY WHSH 106.5 Collegeville MN KSJR 90.1 Fairmont NC WFMO100.9 Los Angeles CA KIC/0 100.3 New Vork NY WGLT 91.7 St. George SC WPWR 95.9 dentown PA WFMZ 100.7 ColumbusGA WEIZ 100.1 Flint MI WGMZ107.9 Los Angeles CA KPFK 90.7 Normal IL 96.1 St. Louis MO KCFM 93.7 Ita Vista VA WKDE 105.5 Columbus OH WCOL 923 Fort Wayne IN WMEF 97.3 Lancaster PA WDAC 94.5 Opportunity WA KZUN Stevens Point WI WSPT 97 9 rlington TX KAMC 94.9 Columbus OH WOSU 98.7 Fort Worth TX KWXI 97.1 Lexington VA WLUR 91.5 Pater son NJ WPAT 93.1 WMMR 93.3 Sylvania OH WXEZ 105.5 altImore MD WAMR106.5 Dayton OH WTUE 104.7 Fresno CA KP-1D 95.5 Louisville KY WCSN 99.7 Philadelphia PA WDCS 97.9 Topeka KS KTPK 106.9 irmingham MI WHNE 94.7 Dallas TX KCHU 90.9 Gainesville GA WDUN 106.7 Louisville KY WLRS 102.3 Portland ME Tuscaloosa AL WUOA 95.7 oston MA KTLC 100.3 Grand Rapids MI WZZM 95.7 Madison WI WYXE 92.1 Richmond VA WEZS 103.7 Rochester NY WCMF 96.5 Utica NY WOUR 96.9 oston WVBFw 105.7 113::::i:T)X 103.7 Hanover NH WDCR 99.3 Maine FL WAIA 97.3 WEZO 101 3 Washington DC WA MU 88.5 uttalo NYMAKVILWDCX 99.5 Dallas TX KZEW 97.9 Hartford CT WTIC 96.5 Manassas VA WEZR 106.7 Rochester NY WIOB 102.9 Washington DC WASH 97.1 utfalo NY WBEN 102.5 Denver CO KBPI 105.9 Henrietta NY WITR 89.7 Memphis TN WKNO 91.1 Saline MI Salt Lake City UT KDAB 101.1 Washington DC WGMS107.3 arbondale IL WSIU 91.9 Denver CO KLZ 106 7 Houston TX KILT 100.3 Miami FL WAIA 97.3 KSL 100.3 Washington DC WHUR 96.3 harlotte NC WEZC 104.7 Detroit MI WABX 99.5 Houston TX KRLY 93.7 Minneapolis MN KSJN 91.1 Salt Lake City UT 104.5 Washington DC WMAI107.3 WROO 95.1 Detroit MI WOMC104.3 Indianapolis IN WNAP 93.1 Morgantown WV WAJR 101.9 San Antonio TX KEXL harlotte NC WYZZ 92.9 WFMT 98.7 Detroit MI WJZZ 105.9 Jackson MS WSL1 96.3 New Orleans LA WEZB 97.1 San Diego CA KGB 101.5 Wilkes-Barre PA hicagolL KABL 98.1 Youngstown OH WYSU 88.5 hicagolL WLOO 100.3 Detroit MI WMUZ103.5 Kettering OH WVUD 99.9 New Orleans LA WNOW101.1 San Francisco CA KIRO 100.7 incinnati OH WEBN 102.7 Detroit MI WORS 105.1 Los Angeles CA KBIG 104.3 New York NY WNEW102.7 Seattle WA

>s listeners to these stations can hear for Naturally, the noise is reduced. But that's If these prospects excite you, we think you hemselves, a Dolby FM signal is not all. Dolby compression is will soon be wanting to check out the new ;ompatible. In fact, most people find it a standardized, recoverable compression. Dolby Model 334 FM Broadcast Unit. )etter signal even when received on their By using Dolby encoding instead of the $1,350 and 11 inches of rack space are all formal equipment without Dolby conventional high frequency limiting you need to get moving with Dolby FM -an iecoding. normally required during transmission, improvement we think both you and your the station gives the listener at home the listeners will appreciate. -lowever, some listeners like to take opportunity of recovering the full advantage of every opportunity for frequency range and dynamics of the mprovement. If they use Dolby circuitry° signal. Furthermore, depending on the luring reception, they can bring the amount of limiting previously used, many signal even closer to the quality of the stations find that Dolby encoding permits )riginal source material used at the them to increase their level -which is station. good for both the listeners and the station.

Technical literature and reprints of papers describing listributors these developments are available from our offices or 'TC Brewer Co, Pensacola, FL La Salle Audio, Chicago. IL troadcast Communication Devices, Anaheim, CA Lebow Labs Inc, Brighton, MA distributors -or call in and see us on Booth 66-67 at Broadcast Consultants Corp, Leesburg, VA Pacific Recorders and Engineering Corp, San Diego, CA NAFMB Atlanta 17-20 September. Schafer Electronics Corp, Goleta, CA ;ollins Radio Group, Dallas, TX 'Some of the 50 Dolby licensees are already producing :ontrol Technology Inc, Fort Lauderdale. FL Sparta Electronics Corp, Sacramento. CA them new receiver models, and others have new designs Whalin's Pro Audio Sales. Arlington, TX IM Dyer Electronics, Farmington Hills. MI in the pipeline.

1133 Avenue of the Americas 346 Clapham Road New York NY 10036 Loidon SW9 DO Dolby Telephone (212) 489-6652 Telephone 01-7201111 Dolby Laboratories Inc Telex 125797 Telex 919109 Dolby' and the double -D symbol are trade Cables Dolbylabs London narks of Dolby Laboratories Inc. Cables Dolbylabs New York

SEPTEMBER, 1975-BM/E 121 Line: full line of video equip 416-742-6631 THE SOURCE '75 Collins Radio see ad p 45 Line: intercoms, headsets, micro-MEXICO L.A. VARAH LTD. phones,audiogenerators,flutter Line: video equip 2077 Alberta St. meters, phase meters, audio com- American Data Corp see ad p 55 ponents Vancouver, B.C. GUILLERMO CHACON 604-873-3211 NAT'L ELECTRONICS AGENCIES DELBEE ASSOCIATES LTD. Empresas, J.L. S.A. LTD. Line: audio equipment 1555 Pitfield Blvd. Juan De La Barrera No. 113 2137 Commercial Drive Aristocart see ad p 136 Montreal 384, Quebec Mexico 11, D.F. Vancouver, 12, BC UNIVERSAL BROADCAST 514-334-5763 Line: full line of radio equip 604-253-0811 CON-SULTANTS Line: audio consoles equip Line: full line video equip 4374 Blvd. St. Laurent ELECTRO-TEC MARKETERS, Lenco Electronics see ad p 79 Montreal, PQ LTD. Line: audio equipment NORTEC WEST, LTD. 1624 West Third St. PUERTO RICO 315 West 5th Ave. WELSH COMMUNICATIONS Vancouver, B.C. Vancouver 10, B.C. 43 Railside Rd. 604-736-6377 604-872-8525 Don Mills, Ontario Line: audio consoles, equip Line: audio equip 416-445-5650 W. FARROW ASSOCS. ELECTRONICA FERNANDEZ Line: video equip 208 Eleanore Roosevelt St. PINEWAY ELECTRONICS LTD. 5200 Dixie Rd. Unit 33 1875 Leslie Street Unit 3 Unimedia see ad p 24 Mississauga, Ont. L4W 1E4 Hato Rey 00919 809-767-3500 Don Mills, Ont. BROADCAST ENGINEERED 416-625-8151 416-449-1343 Line: audio components Line: audio components & equip SYSTEMS UREI see ad p 131 Line: audio components, equip 1466 Kalligan Court Capitol Magnetics see ad p 73 QUEALE ELECTRONICS Mississauga, Ont. GLENTRONIX LTD. HOPE, BENNETT & BLACKBURN 1205 Quadra St. 416-277-0277 160 Duncan Mills Rd. 18 La Rosa Victoria, British Columbia Line: audio equip Don Mills Ont. Isla Verde 00913 416-444-8497 Line: full line of radio equip 604-873-3996 CALDWELL A/V EQUIP. CO. Control Design see ad p 63 Line: video systems 1080 Bellamy Rd. N. Line: full line audio & video equip Telecommunications see ad p 129GERMAN ORTIZ, INC. SMYTH SOUND EQUIP. Scarborough, Ontario 165 Industrial Park Rd. 416-438-6230 Thomson-CSF Labs see ad p 21 Darlington Bldg. Line: full line audio & video equip TFT see ad p 136 Rio Piedras 00925 Longueuil, Quebec 809-766-4672 Line: audio equip Roh see ad p 103 J -MAR ELECTRONICS LTD. UREI see ad p 131 Thomson-CSF Labs see ad p 21 6 Banigan Drive Une: CCTV systems ALEX L. CLARK LTD. Toronto, 17, Ont. PHILLIPS ELECTRONICS TELE-TECH ELECTRONICS LTD. 416-421-9030 15 McCulloch Ave. 30 Dorchester Ave. Center Commercial Villa Nevarez Toronto M8Z 4W6 Line: audio equip Rio Piedras 00927 Rexdale, Toronto, Ont. UREI see ad p 131 416-248-5646 Line: electronic & photo supplies 809-765-4021 Cinema Products see ads pgs 77,M.S.C. ELECTRONICS LTD. Line: audio & video products Line: recording accessories, audio AKG see ad p 51 Wilkinson see ad p 99 83 254 Wildcat Rd. Downsview Ont. M3J-2N5 Thomson-CSF Labs see ad p 21 TELVICOM LTD. CONWAY ELECTRONIC ENTER- 416-661-4180 822 Halpern Ave. SAN JUAN ELECTRONICS PRISES LTD. Line: transmitting and studio equip;San Juan Dorval Quebec H9P 1G6 8890 Arrow Rd. for AM, FM, TV audio, radio, video 514-631-9089 809-725-3342 Weston, Ontario test equipment Line: audio & video products Need information about what digital video signalprocessing cando for you? Check the leader.CVS.

Here are three digital video signal remote sources, live remote news story processing products which have set the I integration and elimination of satellite- pace in the television industry. There's transmission Doppler effects. Functional more to come from CVS. controls are designed to accommodate CVS 504A Digital Video Time Base total system integration. Corrector: Fully equipped including EIA iiD=7 'e as CVS 600-2 Electronic Video Compression Gen Lock generator for complex systems Option: As an option to the CVS 600, it interfacing. This "universal" TBC works CVS 504A can affect real time reduction of an external with 'At", %", 1" and 2" nonsegmented signal to one-fourth its normal size and helical VTR's. The CVS 504A processes locate that picture in any position on the direct or heterodyne color to broadcast CRT. Remote control panel is included standards. Total velocity correction for allowing operation with push-button ease. direct and heterodyne VTR's is now available as an option. Need more information? Contact CVS for informative literature and/or a personal CVS 600 Digital Video Synchronizer: A demonstration. synchronizer designed to automatically lock a nonsynchronous NTSC broadcast Look to the Leader television signal to station synch from any Consolidated Video Systems remote source. The CVS 600 has many 3300 Edward Avenue capabilities, including special effects of local sources mixed with nonsynchronous kw]Santa Clara, California95050 (408) 247-2050 CVS 600 1 Circle 190 on Reader Service Card 122 SEPTEMBER, 1975-BM/E MARTI...THE NAME TO REMEMBER ...

STEREO DIGITAL RADIO STUDIO -TRANSMITTER LINKS REMOTE CONTROL REMOTE PICKUP INTER -CITY RELAY 150 - 450 MHZ Stereo - Mono 950 MHZ FM - AM PARADES SPORTS RECORD HOPS NEWS COMMUNITY EVENTS ..... - 11111111111Me ...... SUPPER CLUBS RESTAURANTS RELIGIOUS DiRC-24 Studio Unit SPECIAL EVENTS OPEN RPU HOUSES SALES WATER STL Transmitter Transmitter CARNIVALS FAIRS The Stereo STL with $975.00 (150 MHZ) "Built-in Backup." $1145.00 (450 MHZ) FEATURES: All Solid -State Direct FM Modu- Dual Channel System (Stereo) $4160.00 lator Broadcast Quality - Continuous Duty Single Channel System (Mono) $2290.00 Four Audio Mixing Channels Plug-in Modu- Antenna or Transmission line cost not included. U g - lar Construction I.F. Crystal Filter Taut Band Meters FEATURES: All Solid -State Direct FM Modula- Radio Remote Pickup Equipmentisversatile, tor Field Proven Varactor Final Plug-in Mod- dependable and an entree to profitable radio ular Construction Solid -State Ovens Hi -Ac- broadcasting. That is the acclaim given to Marti curacy Crystals DRT24 Transmitter Unit RPU Equipment by American Radio Broadcasters. "How did we ever operate a radio station with- Why STL? 8 - Channel - $2350.00 out it?", is the comment most often heard after 1. No "lost air" time due to cut, wet or elec- 16 - Channel - $2650.00 equipment has been purchased and put into trically charged telephone lines. 24 - Channel - $2950.00 service. 2. Better Sound Quality Than a Class AAA tele- Theprogressiveminded, cdmmunityspirited phone line. FEATURES: Single. Button, Direct Channel Se- broadcaster, can find many uses for Remote operating 3. EVENTUAL COST REDUCTION in lect Exceeds All FCC Requirements for Ac- Pickup Equipment. He will do many more re- expense. motes than heispresently doing, simply be- 4. Complete control of entire broadcast system. curacy of Antenna System Data Studio and cause the equipment is available at a moment's Transmitter Units Phase Locked to Common notice. To coin an old cliche, "It doesn't cost - Why Dual Channel? Clock Telemetry Accuracy 0.1% Basic 8 - it pays." 1. A Dual -Channel costs less than a Composite. Channel System Expandable to 16 or 24 Chan- 2. Better Reliability than a Composite. "Built in nels Status/Tolerance Limit Alarm Fully Backup." 3.,Greater Channel Separation than a Composite. Digital for Radio Circuit or Wire -Line Opera- Add Color to Receivers 4. LessSignalDriveRequiredto tion Plug-in Modules forFSK Frequency Your means additional system Fade Margin. Change Adaptable to Multiple Transmitter and more 5. LessTestEquipment Necessary Control From Multiple Control Poirrs Status Remotes... Positive System Diagnosis. 6. Stereo Generator is away from Studio and Indication (Optional) Unauthorized Tampering. Compatible with Composite or Dual PORTABLE 7. Stereo Generator and Broadcast Transmitter Compatibility without Interface. STL Systems BROADCAST 8. Having a Dual -Channel STL islike having a The Marti DRC-24 isa completely Digital Re- REMOTE PICKUP Spare Link. mote Control,Telemetryand status/alarm 9. Two Remote Control and Two Sub -Carrier system, providing theultimateinaccuracy, TRANSMITTER Capability. simplicity, and speed of operation. Channel Model RPT-1 selectionis accomplished simply by pressing $495.00 (150 MHZ) Why MARTI? a single button. The datafor the selected 1. Channel Separation more than 65 db. channelisthen read from the large digital FEATURES: Portable operation on internal re- 2. Channel Response matched to 0.25 db. panel display. Raise/Lower commands can be chargeable nickel -cadmium battery. Total weight 3. Distortion less than 0.5%. given for the selected channel by pressing the only 51/4 lbs. All Solid -State Built-in battery 4. All Solid State. Raise or Lower button. charger Dual frequency operation (One crystal 5. A Simple, True Direct FM Plug-in Modulator. included) Meter indicatesbatterycondition 6. Complete accessibility to modules without re- The integrity of the entire digital processis and modulation Whip antenna mounted di- moval from rack. assured by validation of received data trans- rectly on unit Broadcast -quality Compressor/ 7. The Marti System Delivers Top Performance mission by checking proper start, parity, and Limiter handles toughest remote pickup condi- with Transmitter manufacturer's Stereo Gen- stop bits, a feature found in the most sophisti- tions Two microphone inputs (one push -to - erator. cateddataprocessing equipment.Thisad- talk) and one Hi -Level input each with individ- 8. Marti STL Systems Log over TWO MILLION vanced design feature virtually eliminates the ual mixing gain control (2,000,000) Broadcast Hours each Year. possibility of error in channel selection, com- 9. AVAILABLE FROM STOCK. mand and telemetry data. COMPLETE LINE OF ACCESSORIES AVAILABLE

P.O. BOX 661 1501 N. MAIN MARTIee,ni, CLEBURNE, TEXAS 76031 Circle 191 on Reader Service Card 26. An Inexpensive Set -and -Forget Phone Patch J.H.Wiegman,Chief Engineer, KWAL, Osburn, Idaho

Problem:Towire a telephone intoa radio station insuch a waythat distant and local audio levels are nearly the same. Do so without buying an automatic gain controller. And wire itin GREAT such a way thatitis impossible for anytone to forget to disconnect when the call is done. Solution:Manytelephones(all those made by AutomaticElectric.) have atransformercircuitwhich phases out the microphoneatthe earphone. All you have todois pick off the audio for your programming at the 113E11 earphone. The outgoing siunal (your phone mike) is attenuated at this point, so that even with a long distance calll, both the near and farvoicewill be about the same level. In our situation, CONTEST this system has worked well, especially where we have been recording. The usual vast difference in levels between the two sides of a phone con- versation are too hard to compensate for manually: an AGC would cause

Flexible, solid-stat Input-output configurations are virtually unlimited with this modular, building-block solid-state, audio switch. And . . . this flexibility comes at reduced cost. Starting with a single 8% -inch by 19 -inch rack frame assembly, the user can build to a 20 -input by 20 -output configuration through selecion of plug-in switching and amplifier boards. Still using the same basic frame assembly, other configurations such as 20 by 5, 10 by 20 cr combinations in between can be assembled. Greater capacities, including dual inputs or outputs, are just as easy... just add. Control?... asnap! pushbuttons, thumbwheels, dials, touch pads... even a computer. Performance is outstanding. Using field effect transistor switching and integrated amplifiers, the T T Series 8100 handles -6 to +8 dBm levels through bution network, the buyer saves 1.1 ..117 its balanced transformerless inputs. Flat withinpenalized later. High reliability solid-state auto ±0.15 dB (20 Hz to 20 kHz) ±1.0 dB (1 Hz toswitching costs can be cut to as little as $10 50 kHz), crosstalk per (better than 70 dB belowcrosspoint . . . significantly less than competitive output), harmonic distortion (less than 0.15%) andswitching systems. hum and noise (85 dB below maximum output) the 8100 compromises nothing for its flexibility. DYNAIR ELECTRONICS, INC. Best ofall,users willreally appreciate the 6360 FEDERAL BLVD., SAN DIEGO, CA. 92114 economy. By specifying the initial capability for PHONE: (714) 582-9211; TWX: (910) 335-2040 any remotely -controlled, switched audio distri-

Circle 192 on Reader Service Card 124 SEPTEMBER, 1975-BM/E some pumping and costs too much. service do not. ation. When the cart stops, the relay But with this hookup, when you hang The process was automated with a dropsout.Normalaudioisloud up the phone, the line hangs up as relay and a couple of 10,000 ohm enough to mask the hiss while a cart is well. No need to disconnect your resistors (for stereo). As shown in the playing. Use a miniature low -current recorder or console from the line. Line diagram, the resistor, one per channel, relay. Connect it to the Start circuit. isolation is provided by a scrapped isinstalledafter the outputtrans- For Spotmaster-500 machines, one radio audio output transformer. The former, effectively padding the noise side of a 24 -volt relay coil goes to K-1 high -impedance side goes to the ear- belowaudibility.When theStart Point10 of the Spotmaster circuit phone. No pad is needed, and clicks button is pushed, voltage is applied to board. The other sideiswired to and pops are nil. the relay, which has contacts to short chassis ground. the resistor and restore normal oper- continued on page 126

27. De -Hissing a Cart Machine JohnE. Shepler,Chief Engineer, WACI-FM, Freeport, Ill.

1,A9/0 Problem: To eliminate the noise OUTPUT (hiss) of cart machine amplifiers when iMiV.Sfat'AfER they are not being used. Stations with POINT /0 oN KI multiple machines can find the combined noise output annoying at least, and perhaps strong enough to be the cause of a proof -of -performance fail- K ure, at worst. Pe/P.LiCE,t" Solution: The modification we are fOie 5'776,24c2 using at WACI pads the audio output R4-4,9), co/4l'a<-7i9Cre of the cart machines when they are not M97 -C.9622 7-0 ST/9/QT Gi%ftW/7- in use. Some of the newer machines have this feature, but many now in

Datavision D-3000 Generates Characters ...Sm0000th on the Curves! The most significant feature of any character generator is the quality of the characters it generates.Simple. Character quality shows in the smoothness of curved letters and numerals. An obvious "stair -step" tells you that the manufacturer skimped by using less elements in the matrix. The Datavision D-3000 has 1120 -element character resolution, as good as the most expensive equipment on the market, and at significant cost saving. Plus, the D-3000 is loaded with other features: two character sizes; two D-3000...you're a smoothie! independent output channels; 3 speed roll and crawl; character edging; word flash; automatic centering; and optional D-4000 Random Access Storage System. For all the facts, and a free on -site demonstration, phone (301) 948-0460 or write: Datavision Video Products,Datavision Video Products En Mincom Division, 3M Company, 15932 Shady Grove Road, Gaithersburg, MD 20760. MINCOM DIVISION3COMPANY

Circle 193 on Reeder Service Card SEPTEMBER, 1975-BM/E 125 Problem: To expandthecapa- switcher Preview buss is tied up, the 28. Tape -Roll Switcher bilitiesof asingleswitcher which only way the operator can monitor his `Shares' Control Room serves both air and production feeds. pre rolls during a station break is by Since oursisasmallstation,the using a separate monitor tied into a Monitor switcher Preview buss is often tied up nonsynchronousroutingswitcher. Kurt M. Blackburn, Engineer, KVIQ-TV, as a VTR feed buss, so one operator Problemis,this monitor must also Eureka, CA handles both production and air func- serve as the incoming -network moni- tionssimultaneously.When the tor; the control panel for the routing

T soy 7/ric66ie TO " VTR_ IFEMorE IN PC O 7m, ER CON R ES -6 7' ,T'RNFL. R/ .y /0 /tit CR //-/E- e/6,

{/71/ yRy A CR .4, TA W.4, roK2 f9"47- T/MER VTR 2 -<.1E CR .'./-.2S CR26

0 7R/G&ER 0 re" A'3 VTR zi 7/KfErR v

/74.1. CR 6.ov /ILL c .0/

NATIONAL RADIO BROADCASTERS CONFERENCE & EXPOSITION MARRIOT HOTEL, ATLANTA, GEORGIA SEPT. 17-20, 1975

1ST APPEARANCE NATIONAL QUADROPHONIC RADIO COMMITTEE

AM STEREO DEMONSTRATION & ENGINEERING FACTS

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LATEST STATE OF THE ART ENGINEERING MANAGEMENT

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1 26 SEPTEMBER, 1975-BM/E switcher is a long reach from the oper- whenever any given VTR is rolled avoid miscellaneous switches while ator's normal position. from the operator's remote control tapes were being cued), and to avoid Solution: A small 4 x 1 switcher panel. After a set time the unit auto- modifications to the VTRs. We use an was placed downstream from the rout- matically switches back to whatever unconnected pair of normally -closed ing switcher in the line feeding the had been pre -selected on the routing contactsavailable on each of the monitor. The switcher is designed to switcher. remote Play buttons to controlthe automatically switch the monitor to It was desired that the circuit only display the output of any of four VTRs work from the remote position (to continued on page 128

ill LI-- 0 0 0 0

I/7"R / R2 /k/

VTR of

vi -g30 Fig. 2 Blackburn's /iv0J downstream switcher. Y7Rd/ ° /A/0_1 /4.14 A? 75-32.

"NoRAPU' moo/ vioo00-0- 0 --re- VIDE .9 ro AfOlvir

YOUR BEST COMBINATION SOLID STATE FOR AM MONITORS UHF -TV COVERAGE ACCURATE(&125%

Typical measured Pattern .21 Peak hor power gain 3.38 Send this advertisement CCA patented TV antennas for more information o CCA UHF -TV transmitters have can provide you with the been in service for over 10 exact pattern you require - CCA ELECTRONICS CORP. years in more than 40 locations. normally at no extra cost and 716 Jersey Ave. From 15 kw to 110 kw No other at a minimum of tower load- Gloucester City, N.J. 08030 company can match our relia- ing! We can prove its pattern bility. at our mile long test site! A Subsidiary of CCA Industries Circle 194 on Reader Service Card Positive and Negative Peaks 50 KW AM CCA AM/FM 25KW FM Read Simultaneously with conventional high level air cooled transmitter with in- modulation and air cooling. dependent 3 KW driver and one Digital Frequency Display TRANSMITTERS power amplifier tube. Unaffected by Modulation ARE WITHOUT Flashers and Meters "Re- moteable" COMPARISON Both Monitors Ca-i Mount In One 514" Space

Send this advertisement CCAELECTRONICS for more information CORPCRATION CCA ELECTRONICS CORPORATION 16 JERSEY AVE.. GLOUCESTER CITY. You are cordially invited to visit 716 Jersey Avenue N J 08030 Phone: (609) 456-1716 our plant and watch the AM Gloucester City, N. J. 08030 50,000 go throughitspaces! (609) 456-1716 Crcle 196 on Reader Service Card Circle 195 on Reader Service Card SEPTEMBER, 1975-BM/E 127 GREAT IDEAS

switcher. Dynatel An input NAND gate is used on each input to provide a fast transition of the proper polarity to trigger its as- Automatic Tension Corrector sociated NE555 timer. Each timer in turn controls the length of time the monitor remains on the VTR output in question before returning to the source which has been selected on the routing switcher.Since KVIQ uses a six - second pre -roll, the timers are set for ten seconds, allowing the operator to monitor the, preroll and the first four seconds of the spot before returning to the preset source, by which time the tape should have been placed on the air (or on the Preview buss during dubbing). The timer is a NE555 wired as a one shot. Large values of R11 and C 11 are chosen to give a wide-range of possible delays; they could be chosen to Program this give a highly accurate fixed delay if desired. The output of the timer is used to controltheswitchingtransistor, Q11, which supplies current to the relay, see Fig. 2. A set of solid-state crosspoints could be substituted if desired.

Not this Replace Those Dual Monochrome Monitors With: A simple modification for U-matic VTR's The CDR 9900 Dual Rack Mount 9" Color Video Monitors

Automatically reduces picture skewing or flag- waving; corrects tension in both play and record

Eliminates major cause of tape damage

Utilizes only 8 3/4" of Vertical Rack Space Circuitry on plug-in printed circuit board for easy Two 9" Single -Gun CRTs Slide Out Chassis for Ease in Servicing field installation 100% Solid State Controls Conveniently Located on Front Panel Switchable A -B Inputs Underscan Extends playback dynamic range to twice t -at of Internal -External Sync conventional machines Blue -Gun Only Switch for Setting Phase Isolated from Power Mains by Isolation Transformers Available with Mounting Provisions for a WFM (CDR 9000)

World Video manufactures a complete line of broadcast and CCTV Color Monitors from 5" to 19" in size.

Avtel 1280 Blue Hills Avenue WORLD VIDEO, INC. Bloomfield, Connecticut06002 P. O. BOX 117. BOYERTOWN. PA., 19512 Avtel (203) 242-4242TWX 710-425-2390 j PHONE 215-367-6055

Circle 197 on Reader Service Card Circle 198 on Reader Service Card 128 SEPTEMBER, 1975-BM/E EQUIPMENTBROADCAST

grounded -gridtype.Maintanance containsfinecleaninghairs which For more information access is provided through front and penetrate to the bottom of the record circle bold face numbers rear doors. Options include manual or grooves. Available from Research In- on reader service card. automatic power switch -over,and struments Ltd., Kernick Rd., Penryn, Model 682 Stereo and Model 683 SCA Cornwall TRIO 9DQ, England.310 generators. The base price is $38,500. Color monitor/receiver, Model JU- SPARTA 304 Color 1'V camera is suited for use in 970W,isdesignedfor studioap- industrialtrainingfacilities, CATV Mixing consoles, the Alpha I and II, plications, including direct off -air and origination centers, schools, hospitals are equipped with 8 input channels. general purpose monitoring. The moni- and production firms. The LDH-20 The Alpha I has stereo outputs and the tor is equipped to accept RF or bridged produces a color signal after 2 minutes Alpha II features 4 mixing busses. The direct TV video and audio line feed of warm-up. One coax cable is needed Alpha series contain long -throw, con- without the adapters needed by home to synchronize it to an existing system. ductive plastic faders, solo input, pro- TV sets.Thereisalso a separate The output encoded -color signal meets gram echo & return, independent cue 75 -ohm video output for direct off -air EIA, NTSC and FCC requirements. mix and program echo pan. SPHERE recording. RCA 311 Some internal circuit features include ELECTRONICS 305 dynamic focus correction, linear matrix VU meter is built with 7 LED's in- coefficients, horizontal contours -out - Color video-tape recorder provides dicating volume level. The M-241 is of -green signal enhancement. PHILIPS more than 60 minutes of color or mono- ranged from -15 to +3VU in 3dB AUDIO VIDEO SYSTEMS CORP. 300 chrome recording and playback on steps.Meter requires 12-15Vdc @ 1/2 -in. video tape. Features of the GV- 30mA. Vertical or horizontal mounting RF directional wattmeter measures 215C include audio dubbing,stop isoffered. PULSE DYNAMICS MANU- forward or reflected CW power with the action, edit control, and auto -manual FACTURING CORP. 313 additional feature of an RF sampling level adjustment. GBC CLOSED CIRCUIT Four accessories for the Revox A700: output for frequency analysis on a TV CORP. 306 scope, spectrum analyzer or frequency built-intracksynchronizer,remote conter. The Model 4527 wattmeter is Phono cartridge,Model M95ED, variable pitch control, remote con- designed for ±5% power measurement offers a thinner, uninterrupted pole troller,and portablerigid carrying from 100mW to1 kW from 2to piece. Biradial elliptical stylus tip is case.The'IN SYNC' accessory 200MHz and up to 500W from 200 to nude mounted. The cartridge tracks at enables track one of a previously re- 512MHz. Insertion VSWR is1.05 between 3/4 to 11/2grams. $59.95. corded tape to be heard through the top max.$245. BIRD ELECTRONIC SHURE BROTHERS 307 section of the record head, permitting a CORP. 301 synchronized recording to be made on Mic mixer offers an 8 in/2 out con- the lower section. Price: $229. The TV broadcast production switcher, figuration with two independent level pitch control offers continuous sweep Model 7960, is a 4 -bus switcher with controls, equalization, and a 30 dB variation of tape speed over ±7 musical re-entry and an independent preview variable pad on each input. Eight direct half tones. Price: $85. The remote con- option. The control panel is available in lo -Z microphone inputs are provided on trol includes play, record, fast forward, 3 standard configurations; 9, 15 or 21 the SM-8, along with two hi -Z lines. rewind, stop, auto replay or record, inputs. Custom panels are available Forward and monitor signals may be pause and recap. Price: $125. The carry with up to 29 inputs, additional key, mixedindependently,andstereo case comes lined and features com- mixing may be accomplished. $750. partments for spare reels, NAB hubs, ASHLEY AUDIO 308 AB # etc. Price: $175. REVOX LLD It 312 Four input, two output mixer, Model Audio mixer offers 8 input, 4 output 1 1 1 1 PML422 Series,incorporatesinput configuration. Each input channel of rITTTTTTTI sensitivity preselection, separate low, the TASCAM Model 5 features a low - 3 eoe mid and high frequency equalizers, impedance, balanced mic input, pan, echosend/returncontrolsandad- an LED overload indicator, two bands 1 11 1 1 1 1 tr.r0 glop justable output limiters. The PML424 of selectable equalization, solo, a direct 11111..L.1 1J10( I ED oft. has 8 input, quad/4 or 2 output, and the output andcueand echosend. PML426 provides six input channels. $1499.50. MAC 314 preview and program busses, machine All three mixers use quad pan faders in Video transmission system is for co- control and audio breakaway. Some each input source channel. An oper- axial cable communications using fre- standard features include nine wipe pat- ating manual will be sent to all inter- quency modulation. The VFMS-2000 terns, wipe modulation and colorized ested parties, rather than literature, uses a video FM modulator and de- wipe borders. Prices for the switcher owing to mixer complexity. Price of the modulator. Where audio transmission begin at $13,385. TELEMET 302 PML422 is $675; PML424 is $675; is required, FM audio modulators and Modular broadcasttransmitter, PML426 is $625. REVOX 309 demodulators are available as com- Model 635, outputs 35kW FM. Fea- Phonograph record vacuum, called plementary modules. Any frequency tures include VSWR protection, auto- Groovac , consists of an arm similar to a from 19 to 260MHz is available, and matic power control, and a fault locator pick-up, and an acoustically isolated input baseband bandwidth options are system. Thefinalamplifieristhe suction enclosure. THe arm's nozzle continued on page 130

SEPTEMBER, 1975-BM/E 129 PRODUCTS tween the crystal oscillator output and the network color subcarrier. The comparator accepts inputs of 2.5, 5, or 10

MHz while the Model 175 Mod. 1 from10Hzto500kHz minimum, 5MHz maximum. Channel bandwidth is 3 times the highest modulation frequency. CATEL 315 Portable two -channel reverberation unit, Model BX-10, is based on the torsion transmission line principle. In- hand -machined dove -tail groove in a dependent decay -time adjustment, high hard aluminum block secures the tape. and low frequency equalization and re- Mount holes and rubber base are pro- verberation/dry signal mixing are provided. $49.95 + $1.50 postage & han- vided for each of the two electronically dling. NAGY RESEARCH PRODUCTS 318 and acousticallyseparatechannels. Dimensions are 17W x 12H x 19D Bi-polar power supply, with output inches. Price is $1400. AKG/PHILIPS316 current capability of ±4A, provides ad- justabledcvoltages from ±14 to Battery pack, Model GRL/HL-33NC, ±16V. The Model 7000 has crowbar and companion Model GRL/HL- over -voltage protection, foldback cur- 33NCT single -channelcharger,is rent limiting, and interlocked output available for lkegami HL -33 or HL -35 protection. Some other features include accepts 1, 5, or 10 MHz. Price of the cameras. Pack contains 24 D -size cells remote sensing, resettable power line 175 is $99.95; the Mod. 1 sells for that provide 4AH. The single -channel circuit breaker, an overload indicator, $109.95. DYNATRON 320 charger has a built-in timer for auto and front panel voltage adjustingcon- charging battery pack in 3 hours or less. trols. MODULAR AUDIO PRODUCTS 319 Room equalizationfiltersethas The GRL/HL-33NC costs $575; the 27'/3 -octave active filters that each pro- chargeris$812.50.GENERAL RE- Frequency comparator aids in cali- vide up to 15 dB of attenuation to adjust SEARCH LABORATORIES 317 brating crystal oscillators against tele- for a desired house curve. Frequencies visionnetwork atomicstandards. are centered on standard ISO channels. Audio tape splicer, Model TS250, Model 175 generates a vertical rainbow Band -end,tunable -high-passand semi -automatically shears 1/4 -in. tape. bar on the screen of a color TV re- low-pass filters attenuate 18 dB/octave. Stainless steel, self -sharpening shears ceiver. The rate of color change of the Gain is adjustable to +20 dB to make cut both the tape and splicing tape. A bar indicates the phase difference be- up for average level lost in equal-

IGM has just RAMmed the automation industry a giant step forward with our new RAM 4000 event random access memory unit-works withany system, operates as a main -brain, or expands your existing system. swith our new PAL Printed Automatic Logging package-works with any systemor live studio operation, provides fully buffered, verified FSK printed English -text logging. with our new Go-Cart-the first innovative multiple cartridge handler in years -42 cart capacity expandable to 78, high-speed access under micro -processor control, optional back- to-back playback from the same machine, all at the lowest per cartridge cost in the industry! with Instacart-the first and only time -proven instant random accesscartridge - Mama 11111 handler-ask anyone! We're now exclusive national distributor Surprising new capabilities at of sensational new OSRAM HMI bulbs. surprisingly realistic prices- from IGM, automatically... And still the country's biggest in -stock the best there is! source of GE and Sylvania bulbs and 11 sockets for studio, theater, tv and AN. Call or write today Now plus Leecraft sockets, too. k for full details Wespecialize - we've got it allfor you! Send for 108-pg. stage/tv Lighting Handbook -gym (50tmail and handling, please). owl a division of NTI 4041 Home Rd. Nationwide service for over 25 years. Bellingham, WA Same -day shipment anywhere inUS. 98225 Rush delivery in Manhattan. (206) 733-4567 (212) JUdson 6-1620 BAITRI,Eclfc,T9RIC

Circle 199 on Reader Service Card Circle 200 on Reader Service Card 130 SEPTEMBER 1975-BM/E ization. UREI. 321 Power meter needs one head for 25- 1000 MHz, 20 mW-320W, respec- BL 40 MODULIMITER tively. Model NAUS-80A has an accuracy of 4% of reading ±1% full scale; operating temperature range: -20 C to +55 C; battery operated for over 7000 hrs from one set of D cells. $750. RHODE & SCHWARZ. 322 The Automatic Zoom lens, the 10X150, is an addition to the lens line for the TGX-16mm cine soundsystem.$2850.GENERAL CAMERA CORP. 323 Bonded -foil, 75 ohm drop cables are AM Broadcast available in combinations of foil and braid (or drain wire) shield, dual and messengered versions in both RG/59 and RG/6 types.50 -ohm typesin RG/58 and RG/8 sizes will soon be available.CERRO COMMUNICATION Limiter With PRODUCTS 324 Oscillator/phase shifter offers variable frequency, phase for wattmeters, phase meters and phase angle voltmeters. Two independently adjustable Tweak -ability voltage outputs are provided by the RCD-709 overtherangeof10- 110kHz. Phase angle differences be- Unlike other broadcast limiters that are factory -set automatic, our Model tween the outputs over a 0-360V range can be dialled in. Available options in- BL -40 MODULIMITER offers front panel adjustments and separate meters clude phase lock, high resolution ver- for output level, peak limiting and RMS limiting. No matter what your format, nier and 10 volt output amplifiers. hard rock to classical, MODULIMITER is readily adjustable to maximize $3995. OPTIMATION 325 transmitter efficiency and extend coverage. Our patented electro-optical atten- Single -sweep waveform monitor, the uator provides unobtrusive, smooth, true RMS limiting. An ultra -fast F.E.T. WM31, offers single-line/single-field peak limiting section prevents unwanted overmodulation with no peak clip- display on a3 -in.CRT. User -ad- ping. Our "Phase Optimizer" maintains most favorable signal polarity permit- justable trimmers permit establishing ting up to 125% positive modulation without negative undershoot. The BL -40 MODULIMITER offers all state-of-the-art automatic features plus complete adjustability not available in others. UREI quality, of course.

the lines and the fields sweep start -stop points individually to user preference. $695. ULTRA AUDIO PIXTEC 326 Data logger, Model 4024, provides up to 72 analog or digital input channels. It isusedinsingleormulti -station systems where the data is to be logged on magnetic tape or transmitted for computer processing. METRODATA327 Wireless system, Series WR420, remotely controls a/v projectors, audio and video tape equipment, and sound/ lighting systems. Three models controlling from 22 to 44 functions are offered. Range of each is 250 ft. INTERNATIONAL VISUAL PROD- 11922 Valerio Street, No. Hollywood, Cali'ornia 91605 (213) 764-1500 UCTS. 328 Exclusive export agent: Gotham Export Corporation, New York continued on page 132 Circle 201 on Reader Service Card SEPTEMBER, 1975-BM/E 131 ask about our new PRODUCTS

am fm tv monitors Push-pull,2 -way -capableinternal distribution amplifier offers up to 35 channel capability. Designated Model 13e +000+ 00( IDA-45, the amp meets or exceeds FCC Rules Part 76. It is encased in a die cast aluminum housing. Output levels can be +48dBmV/channel in 35 channel system, or up to +54dBMV/chan- Call or Write ARNO MEYER nel in 12 -channel systems. Cross mod- BELAR ELECTRONICS LABORATORY, INC. ulation:-57dB; second order beat -68dB and triple beat -72dB. Plug-in Lancaster Ave. at Dorset. Devon, Pa. 19333 and accessory modules are available. (215) 687-5550 $438. JERROLD ELECTRONICS CORP. 329 Circle 202 on Reader Service Card Data modems for CATV networks, YOU CAN GET S terrestrial microwave links and satellite 3M400 communications ground stations fea- tudio Tape ture standard data rates from 1200Bps 1/2 HOUR to 230.4kBps. The modem operates on MASTER QUALITY Exchange a point-to-point or multi -point dedi- ea. delivered2" VIDEO TAPE cated basis and is capable of full duplex Inc. operation.Interchangeableinterface CLEANED, EVALUATED options allow use of RS -232C, Bell 303 AND REPROCESSED current or other special interface ar- rangements.Four LED statusin- dicators provide visual monitoring of FOR ALL YOUR VIDEOTAPE NEEDS: operational status and signal quality. Call Nancy: Call Renee. $1950. INTECH 330 (212) 265-3740 (213) 985-3303 366 West 46th Street 11555 Ventura Blvd. Dolby FM compensator provides the New York, NY 10036 Studio City, Ca 91604 FM time -constant compensation QUALITY & SERVICE AT THE LOWEST PRICES needed forthereduced transmitter Circle 203 on Reader Service Card pre -emphasisin Dolby FM broadcasting. The compensator works with VersaTitlT M TITLER-PROMPTER with CRAWL Dolbyized FM receivers and when costs less than other prompters alone. playing Dolby -recorded tapes. Model e 622P1containsnoamplification, PROMPTER - for news, speeches, lectures, messages of virtually power supply or power lead. $24.95. unlimited duration. SWITCHCRAFT 331 VERSATILE - feeds any video monitor standalone, self-contained Studio console has 20 inputs and 16 operation, illumination built-in. output -mix channels plus quad, stereo POLARITY REVERSAL - flip of a switch converts black -on -white and mono mixdown, 4 echo and 2 cue to white -on -black for greater legibility, and vice -versa. channels.Patching systemfeatures TV TITLER - your sync generator's drives let you title your tele- closed-circuit TV,tapemachine productions from typewritten or other inexpensive visual remotes, digital timer. SPHERE ELEC- material, synchronized with program video. TRONICS 332 ROLLING TITLES - accepts typed, written or drawn "visuals" on standard 4x6 cards or adding -machine paper for continuous Television title generator, the K128, "crawl". superimposes standard typewriter al- REMOTE CONTROL - Forward, Reverse and crawl Speed are phanumeric s, foreign language letters, controllable at theTP2or remotely. math and engineering notation on TV MONEYSAVER - avoids dedicating costly studio camera and screen. Features include programmable operator to titling activities, I.Ds, etc. line length and character size selection; expanded memory is optional. $3500. KNOX 333 Stereo tape cartridge, the A-2SP, is TP2 guaranteedforphasing,high - frequency output, tension and azimuth up to12.5Hz. Cart isavailablein lengths from 20 sec. to 12 mins. CAPI- TOL 334 Random access controller (RAC) has 2048 events of keyboard addressable P.O. Box 921 memory and interfaces with up to 19 Beverly Hills, CA 90213 multi -cartridge, single cart, or reel tape U.S.A. (213) 849-1433 sources. Expandable to 4096 events, the RS -2000 has battery back-up for I ltra Audio Pixtee power failures. The RAC is compatible Circle 204 on Reader Service Card 132 SEPTEMBER, 1975-BM/E withanyautomationcontroller. SPARTA 335 RF modulator, RFM-26, transforms video source signal to tunable RF signal over TV channels 2-6. The modulator AUTOMATION: is equipped with RF and Video gain controls. UHF ASSOCIATES 336 Can Increase Your Sales CATV VHG/subchannel converter is available with a double -balanced mixer ...and Profits. circuit to permit VHF low -band to low -band conversions, mid -band conversions and high -band conversions. CATV 6 PAY TV The Model X0 -2b attenuates 70% of SYSTEMS thespurioussignalsgeneratedin single -ended mixers, and employs a built-in regulated power source. Gain is 18dB from VHF to subchannel and 13dB from subchannel to VHF or from VHF to VHF. Maximum input signal * ATM -173 AUTOMATED TV MODULATOR (for 0.5dB of sync compression) is * FMSM-9175 AUTOMATED STEREO FM MODULATOR 30,000µV. BLONDER -TONGUE LABOR- * FMM-175 AUTOMATED FM MODULATOR ATORIES 337 * AMC -1272 AUTOMATED VIDEO AUDIO LEVEL Outdoor multi -tapfor CATV STABILIZING AMPLIFIER systems, the 3800, has 12 different tap * ARCS -573 AUTOMATED RF CHANNEL SWITCHER values. Bandpass is 5-30MHz; return loss is 23dB max; 30dB tap -to -tap isolation. $6.25 each for two -tap models and $6.50 each for four -tap in small FUNG ENGINEERING, INC. lots. Discounts are available. GTE SYL- P.O.BOX 1082 SAN CARLOS, CALIFORNIA 94070 VANIA 338 TEL: 415-591-5141 Alphanumeric encoder/CRT video terminal is installed in the newsroom for late news flashes, etc. The DT -1 can Circle 205 on Reader Service Card Announcing VTC-1000

end. Lowest prices. Guaranteed quality. And immediate, personal attention to every video tape product or service you need*And we'll pay the freight anywhere in the continental U.S. with each order of 6 or more reels! also be used for in -station paging or to (In California, add 6% for sales tax.) summon personnelformessages. Call collect: (213) 985-1666 $1625 for the keyboard with one video terminal, $220 for each additional ter- All -new Mastering minal. SYSTEMS MARKETING CORP. 339 THE 4212 Lankershim Blvd. VIDEO N. Hollywood, Ca. EBS broadcast system, Model 760, VideoTape TAPE 91602 consists of two modules: a two-tone '160.00 per hour* CO. Keith Austin, Pres. EBS generator which produces the re- IMail this coupon today for free quired 853 and 960Hz ±0.25Hz tones From the Video Tape Company-the price -and -information brochure. simultaneously and a two-tone EBS de- firm that promptly supplies any of your coder -receiver which can be either con- video tape needs! Prices lower than Name tinuously -tunable,frequencysyn- all competition-including Program thesized or FM fixed -tuned. Additional Duplicating Stock @ $125.00 per hr./ ITitle features include auto program inter- Spot Duplicating Stock @ $1.00 per cept, internal generator/decoder test- min.'-(22 min. max. length) 100% Company and/or Channel ing, a contact closure for external alarm guaranteed. VTC-1000 promises: City and adaptability to remote control. low dropouts hi signal-to-noise TIME AND FREQUENCY TECHNOL- excellent color performance State Zip OGY 340 extended headwear exceptional BM/E-75S continued on page 134 durability each reel tested end -to - 11111MMINIIMINEMOMMEMME Circle 206 on Reader Service Card SEPTEMBER, 1975-BM/E 133 C °PERFECTTIMI\G PRODUCTS Video assist may be attached to the CP- I6Rreflexcamera.Cinevid- 16 Low Cost ESE Right On Timers picks up the image directly from the CP- I 6R and electronically transmits it. Pickup measures 21/4 x 334 x 5 -in., weighs 1lb.13 oz., and uses a 2/3 -in. silicon matrix tube. The CP-16R reflex

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 ES -301:Identical to ES -300 except with planar, gas discharge display. $185.00 ES -302: Equivalent to ES -301 plus fast -set lever wheel programing. $238.00 ES -400: Three digit ten minute timer (9:59) with Start, Stop, Reset. $ 98.00 ES -510: Four digit sixty minute timer (59:59) with Start, Stop, Reset. $125.00 ES -500: Six digit, twelve hour combination clock/timer with five controls: Start, Stop, Reset, Fast Advance, Slow Advance. $150.00 optics system is not interfered with; the STANDARD OPTIONS AVAILABLE: Kit; Slave; BCD Output; Remote access cover on top of the camera is Connector; 6' Remote Cable and Pushbutton Set; 220V A.C., 50Hz; replaced with a relay lens and a quick - 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. disconnect bayonet lock. Video image Relay Contact Closure at Zero and/or Stop at Zero available on is rated at 400 TV lines min. Assist is ES -300, 301, and 302. Crystal Timebase availablefor ES -500. powered from a l2Vdc battery or 120/ Custom options and special orders available. 240Vac line. $3850. CINEMA PROD- UCTS CORP. WRITE, WIRE OR CALL TODAY 341

5051/2Centinela Avenue Inglewood,California 90302 (213)674-3021 Motor for the French Eclair NPR, the Beala III, can be used with all inter- Circle 207 on Reader Service Card national standards of speed and fre-

IIP YOUR AMPEX Aimmimt

NICS

quency. It features ball bearings, elec-

RECORD GAN , tronic starting circuit, crystal oscillator and humidity protection. $2750. E -CAM Co. 342 Mixer-preamp fordiscosprovides stereo output from phono, tape and or other professional recorder microphone inputs.Individual slider fader controls on each input, full equalization, overall master volume control, pre -cue and talkover facilities are fea- Up with quality, performance, features. Inovonics' Model 375 Tape Re- cording Electronics gives you better -than -new performance, with features you won't find on even the newest recorders. Full remote control, 3 -speed equalization, "linearized" recording amp and phase -corrected reproduce circuitry for lowest distortion. Optional sync amp with inde- I pendent equalization. Pin compatible with most Ampexes; adaptable to 111 l 1111 many other professional machines. $690.

INOVONICS f INCORPORATED 1630 Dell Avenue, Campbell, CA 95008 (408) 374-8300 11111111111111111111111111 Circle 208 on Reader Service Card 134 SEPTEMBER, 1975-BM/E tures of the Clubman II. $449. METEOR BENNETT LIGHTING 344 CCTVmonitor, Model VM-9A, is TOWER UL -approved, and is corrected for use PAINTING with standard and time lapse video tape The leader in recorders. The 9 -in. monitor has an 0,AAvA11.11.811141 microwave EIA scanningsystem,aluminized tower CRT, requires1 V peak -to -peak com- painting posite video at the dual -impedance type UHF input jacks. Horizontal resolution is 550 TV lines. Also available in a rack -mounted version.JAVELIN ELEC- TRONICS 343 Pulse cross monitor, used to adjust VTR skew, tracking and tape tension, is a modified Hitachi P -43M receiver/ M.P. VIDEO344 With the deadline ap- monitor. Price is $350. proaching for compliance Motorized zoom lens,themodel with FCC amended rules V12.5 -75M, provides 6X range for 26 changingpainted band inch format C -mount cameras. This widths on communication unit operates with the VIO0C or VIO1C towers, it would be a good idea to call now for free estimates on re- lens control to provide remote control painting your towers. of zoom, focus and iris.VICON INDUS- We offer quality workmanship at TRIES 345 reasonable prices and strict super- Variable attenuator provides variable vision. loss up to 18dB for TV and FM signals (54 to 900 MHz). The VA -18 employs Phone 505 327-3543 a rotary attenuation control with slip - clutch construction. Impedance is 75 BENNETT TOWER PAINTING ohms. Return loss up to 300 MHz is 20 TWO WAYS TO 610 East 30th Street dB at the minimum setting; 13 dB at the Farmington, New Mexico 87401 maximum setting. For the frequency AUTOMATE range of 300 to 820 MHz, return loss is Circle 209 on Reader Service Card 14 dB and 8 dB; for the range 820 to MOVIE 890 MHz, 12 dB and 6 dB. The VA -18 with or without usesF:type cableconnectors; two PROGRAMMING. adapters aresupplied for use with FREQUENCY MEASUREMENT RG-59 coax.BLONDER TONGUE 1.The Fine Tuned Guillotine LABORATORIES 346 Channel elimination filter blocks one 2.The Efficient, Economical CATV channel from crossing political CinePro subdivisions.(When differencesin Li it monthly rates occur, it may be desir- Our new low-cost automatic TBM 3700 for able to provide one municipality with movie programming system FREQUENCY/MODULATION more channels thananother.) The plugs into a pair of JVC 3/4" MONITORING model CEF is a multiple cavity absorp- tion filter and has 45 dB rejection of the video cassette machines - unwanted channel and less than 2 dB without any soldering or ex- attenuation in the adjacent channel. pensive modificaticns. An ex- The unit is housed in a cast aluminum clusive pre -roll provides instant, enclosure for strand mounting with TBM 3500B for no -lag switching. High quality standard input and output center seizure construction features reliable, MODULATION MONITORING ports.C-COR ELECTRONICS 347 ONLY state-of-the-art digital elec- CCTV modulatorsinfourcon- tronics. The system is easily either can accommodate figurations add closed circuit TV programs intomaster TV antenna or expanded to handle multiple TBM 2200A for STEREO CATV systems. Model AVMT 4923 machine programming, or can TBM 2000B for SCA provides both a modulated visual and be ecuipped with an external

either capable of aural RF carrier output on any single clock for pre -scheduled pro- OFF -AIR remote operation with VHF TV channel. Model VMT 4922 gramming. Versatility, price and feeds a modulated visual RF carrier TBM 2500C with TBM 3700 output on any single VHF channel. performance are unmatched. LL 35B with TBM 3500B Ge! the facts -Write or call (plug-in card) Model VM 4925 offers modulated video bandwidth of up to 8 MHz, while for prices and technical info. the AMT 4921 feeds a modulated aural the "FULL CHOICE" line RF carrier output on any single VHF Electronic Interface Systems, Inc. McMartin. TV channel All units are rack mounted, 2409 South Broadway/ Santa Ana, Ca. 92707/ (714) 979-0033 McMartin Industries Inc. 4500 South 76th Street Dealer and distributor inquiries invited. Omaha. Nebraska 68127 Phone (402) 331-2000 continued on page 136 Circle 210 on Reader Service Card Circle 211 on Reader Service Card SEPTEMBER, 1975-BM/E 135 We guarantee PRODUCTS the unique and are13/4inches high. BLONDER - individually tested TONGUE LABORATORIES 348 Microwave relay system for ENG is available in any frequency band from :ARISTOCART) 1.7 GHz to 15.3 GHz. The system consists of the TCM-3 series manpack will deliver microwave transmitter, TCM-6 series a consistently higher receiver, and TCM-6 transmitter. The tripod -mountedtransmitterandre- standard of voice and ceiver is available in various optional music reproduction mounting configurations. Horn or dish than you'll get from any other cartridge on the market.

SPECIFICALLY: Aristocart's exclusive internal guidance system delivers reel-to-reel fidelity - 20Hz to 15kHz - for the life of the tape. Phase stabilityisbetter than 90° to 12.5kHzwithanyproperlyaligned machine. Wow and flutter have been minimized. antennas ofany polarization are used Every Aristocratcartridge isfactory interchangeably as desired.A built-in tested before shipment for phase and test tone enables antenna alignment and frequency response. We replace at our level and deviation of both video carrier mCTJTIME &FREQUENCY expense any cartridge which fails to and internal program channels. TERRA- TECHNOLOGY INC. perform within areas indicated. COM 349 3000 Olcott St., Santa Clara, CA. 95051 (408) 246-6365 Fitting deters pay TV theft of service and removal of equipment. Called Sec- Circle 213 on Reader Service Card urity Shield, the fitting prevents removal of the converter inside the home, and discourages bypassing trap connection changes for pay TV service. In addition, the fitting also prevents dis- connections of the matching transformer to cable and F -style connection removal. The shield is made of zinc- plated steel and is difficult to crush or distort. The fitting costs 16 to 24 cents, depending on quantity. A tool for in- The stallation and removal is also available and costs $6.50. LRC ELECTRONICS 350 simple, solid Mini Portable oscilloscope, the model A1010, features Z-axis modulation. cart machines. The Y preamp has 10 mV sensitivity, Now, yourcarttapes can 10 MHz bandwidth, and can feed its sound the way you want them output into the X amplifier to increase to sound; clear, clean and flat sensitivity, leaving direct access to the with ORK cartridge equipment. 150 cycle tone as standard feature. Direct drive. believe your own ears Solid state electronics. Switch to Compact. (Playback machine only 5-3/4" wide). :ARISTOCART Contact your local ORK dealer or inquire direct.

A DIVISION OF WESTERN BROADCASTING LTD. Y deflection amplifier. The unit meas- 505 Burrard Street, Vancouver, Canada V7X 1M6 ures23/4x 51/4x73/4 -inches, and Tel.: (604) 687-2844 weighs 33% pounds. It is powered by 01-02 Distributors: U.S.A. - McCurdy Radio Industries rechargeablebatteries.Thesyn- Inc., Buf falo N.Y. - IGM, Bellingham, Wash. CANADA ELECTRONIC PRODUCTS, INC. - McCurdy Radio Industries Ltd., Toronto, Ont. - chronizingcircuitslock on any 1568 North Sierra Vista, Fresno, California 93707 L. A. Varah Ltd., Vancouver, B.C. GREAT BRITAIN - waveform. The scope is available from Phone (209)251-4213 Selkirk Communications Limited, London, Eng. AUS- TRALIA - Syntec Electronic Distributors, Pty., Castle Lawtronics Ltd., 139 High St., Eden- A subsidiary of CCA Electronics Corp. Cove, N.S.W. bridge, Kent TN8 5AX, England.351 Circle 212 on Reader Service Card Circle 214 on Reader Service Card

136 SEPTEMBER, 1975-BM/E \EW LIVE ELECTRONIC JOURNALISM NURAD'S ENG ANTENNA SYSTEMS AND COMPONENTS FOR ForLIT copies of these literature offer- INSTANT REMOTE TV BROADCASTING ARE NOW AVAILABLE ings, circle number for appropriate items on Reader Service Card. IN THE 2.0 GHZ, 7.0 GHZ, & 13.0 CHZ BANDS.

Other NURAD Generaldescriptions,specifications, antenna products. application diagrams and pictures of UHF -VHF Antennas, broadcast products are available in a Microwave Antennas, 44 -page catalog. EECO. 250 Antenna Alignment Systems, "Tools and Equipment" is the name Radomes and STL Equipment. of a catalog which contains listings on over 2,000 items regularly stocked and NURAD 2 GHZ QUAD commonly used by linemen, installers POLARIZED ANTENNA and technicians in the CATV, tele- INSTALLATION phone and power industries. Anixter- Pruzan. 251 NURAD QUAD POLARIZED MICROWAVE ANTENNA A six -page, illustrated equipment bro- SYSTEMS ARE OPERATING OR WILL SOON BE IN SERVICE churecovers"BroadcastAudio TransmissionSystems,"equipment IN SOME THIRTY MAJOR METROPOLITAN AREAS. for terrestrial program channels and for satellite channels. Coastcom252 "The Music -Maker's Manualof NURAD Microphone Mastery" offers tips in INCORPORATED BALTIMORE, MARYLAND 21211 non -technical format from sound engineers on how to select and use mi- 2165 DRUID PARK DRIVE AREA CODE 301- 462-1700 crophones, plus guidelines for on- Circle 215 on Reader Service Card stagemikingsituations.Shure Bros. 253 Super 8 Sound is selling the manual for their Super 8 Sound Recorder. It also serves as a source of technical in- COMPLIMITER formation about the various stages of production and post -production when working in sync Super 8, and with the Super 8 fullcoat. To obtain a copy, send $1 to Super 8 Sound, 95 Harvey St., Cambridge, Mass. 02140. 254 A color brochure describes the Telsc- reen system, a large -screen TV projection display system which produces theater -size pictures with high MODEL 610 lumen output. Conrac. 255 Used in recording studios; disc mastering studios; sound reinforce- A 16 -page catalog of portable and ment systems; TV,AM, FMbroadcast stations to maintain a sustained bench test instruments for service, average signal at a level significantly higher than that possible in con- industryandeducation,including single- and dual -trace scopes, a digital ventional limiters, and with performance that is seldom attained by multimeter, function generator, FET most linear amplifiers. Pack mounted, solid state, functional styling, multimeters and a sweep and marker the Model 610 is in stock for immediate shipment. alignment generator, is available. Cat- alog 75CBA lists features, operating data and specifications. Hickok Elec- trical Instruments. 256 Specifications are available from: The 1976 "Engineering Manual & Purchasing Guide" is 228 pages of electronic parts and equipment from Allied Radio and other manufacturers. PENH IOMICS Available for $1, the catalog can be obtained by writing to Allied Electron- 770 WALL AVENUE, OGDEN, UTAH84404 ics, Dep't. 76, 401 East 8th St., Fort (80') 392-7531 continued on page 138 Circle 216 on Reader Service Card SEPTEMBER, 1975-BM/E 137 NEW LIT give ui "Specialists In Remote Broadcast Audio Transmission" Worth, Texas. 76102. 257 in! The "1975 Tube Caddy-Tube Sub- a 450MHz Wireless I Microphone System stitution Guidebook" shows the cor- recttubesubstitutionsformost The Comrex 450MHz Wireless Micro- domestic and foreign receiving tube phone system is designed specifically types,CRT's, andindustrialand for use with sound cameras in news commercial receiving and transmitting and sports types. Over 7300 primary tubes and almost34,000substitutionsare 4371-1 shown. Hayden. 258 The "Radio Operator's License Q & A Manual," by Milton Kaufman, offers FCC exam preparation for all classes and endorsements,andincludes sample FCC -type exams for every element in this, the 8th, edition. The Features: question -answer style is followed as in Crystal Control, Rechargeable the previous editions, but this latest Batteries, Dual Automatic Modulation one anticipates future exams by adding Control, Crystal Bandpass Filter a completely new group of transistor Specifications: questions, and solid-state schematics Transmitter Model 450TA and discussions to existing FCC -type Frequency Range:450-451 MHz questions. Hayden. 259 Power Output: 100mW Microphone: "AM -FM Broadcasting: Equipment, Any low impedance dynamic Operations,and Maintenance," by Size:3" x 5" x 1" Harold E. Ennes, presents the engi- Receiver Model 450RA neering fundamentals needed by the Sensitivity:1 microvolt chief engineer or maintenance techni- Antenna:Flexible rod cian, or trainee at an AM or FM Output: -50 dBm @ 150 ohms broadcaststation.The800 -page Size:3"x5" x 1" hardbound book is divided into 14 chapters with exercises included at the end of each. Answers to these ex- Cue System ercises are given at the end of the The Comrex 26 CRA/CTA Cue System book. Howard W. Sams. 260 provides remotetransmission of Cue/ program/instruction from the produc- A five -section catalog describes elec- tion control center to floor crew, field trical and mechanical specifications, technician and talent. application information, curves and Features: charts on test and measurement in- High level Headphone Output struments. Detailed description sheets Operates on Replaceable 9 V Battery are also available on all1500 in- Crystal Control FM strumentscovered.Rohde & Schwarz. 261 Cable Handbook, 1975-76 has been published by Publi-Cable, a non-profit national consortium of individuals and organizations trying to help cable develop in the public interest. The hand- Specifications: book consists of chapters by experts in Receiver Model 26CRA many sectors of cable development, Get the feel of the "Velvet Touch" Frequency Range:26.1 - 26.48 Mhz technical, economic, regulatory, etc., drive system, no -slip starting and Audio Output:500 mW into 8 ohms which offer detailed and extensive super soft suspension of RUSSCO's Antenna:Headphone cable guidance to municipalities, as well as rugged CUE -MASTER and Size:3" x 5" x 1" potential local users of cable, in plan- STUDIO -PRO turntables. With Transmitter Model 26CTA ning and operating a successful cable heavy-duty synchronous motors, Frequency Range:26.1 - 26.48 MHz system and getting maximum value Olite bronze bearings and only Power Output:1 W into 50 ohms from its use. The Handbook is available 3 moving parts, you've got Deviation:± 5 KHz at $6.95 a copy plus 40¢ for postage long -wear dependability! Size:1-3/4" relay rack (19") from CommunicationsPress,1346 Audio Input:6000 ohms bridging Conn. Ave, NW, Washington, DC (0 dBm @ 600 ohms) 20036. Power Supply:117 V 60 Hz Hundreds of different in -stock relays, -P171155L-17 56 Union Avenue solenoids and stepping switches are ELECTRONICS INCORPORATED Sudbury, Massachusetts 01776 U.S.A) described in a 40 -page complete cata- 1070 BROOKHAVEN, CLOVIS, CALIF. (617) 358-4042 log. Universal Relay. 258 PHONE (209) 299-2167 Circle 217 on Reader Service Card Circle 218 on Reader Service Card 138 SEPTEMBER, 1975-BM/E From 10 to 1000 or more Second Annual tapes a day you get clean like -new erasures on a Model 70. Best -Station Designed for professional and commercial users concerned with quality and production Award Contest speed, the Model 70 pays for itself quickly on both. Erases up to 7" reels, audio cassettes and video cassettes. Unique If you have built new broadcast facilities, or modernized your old, for belt transport is key to rapid dollar -smart operations or more human efficiency in the last year . . . erasure cycle. Send Your Story by October 15 to the BM/E BEST -STATION AWARD GARNER INDUSTRIES CONTEST 4200 N. 48 St. We will publish in the December, 1975 issue, all stories our editors find Lincoln, NE. 68504 acceptable. Our readers will be invited to pick the winner in each of three 402/466-1816 categories: AM, FM and TV. Each winner will get a Best Station Award plaque designed to enhance any station visitor's lobby, manager's office, or studio. Winner will be announced in the March, 1975 issue. Here are the simple rules: Describe your construction or modernization briefly, including the logic of equipment selections or design layout choices. Focus on one section of your plant-transmitter, remote control, or studio control room layout, as examples-or describe the whole plant. Write as much, or as little as Circle 219 on Reader Service Card you need to tell the story clearly, but the upper limit is 1500 words. Include photos, block diagrams, schematics, floor plans as needed. ReK0 KUT Remember-Get Your Story in by October 15th. Send it to Best Station Award, BM/E, 274 Madison Ave., New York, NY 10016. For further information, write or call the Editor, BM/E, at the same S-320 address. Tel: (212) 685-5320. TONE ARM

THE Coming In October STAND RD Special Emphasis: OF Audio COMP ISON

A"SOUND"COMPETITIVE EDGE! Want to know more about the industry's most popular tone arm? Ask The STE-100 STEREO PHASE ENHANCER. .,. your fellow broadcaster or profes- can minimize "Phase nulling" in "Mono -sum" signals, sional user ... he probably has one! and ensure your "Sound quality" in todays competitive markets! !! Contact your local ORK dealer or inquire direct. RISKOKUT A subsidiary of CCA Electronics Corp. 1568 North Sierra Vista Fresno, California 93707 GARRON ELECTRONICS,1216Kifer Rd,Sunnyvale,CA,94086,Call(408)736-8137 Phone (209) 251-4213 TELEX 355-328

Circle 220 on Reader Service Card Circle 221 on Reader Service Card SEPTEMBER, 1975-BM/E 139

Checklist of Radio, TV & CATV Books SALES OFFICES MANAGEMENT & OPERATION FCC RULES & REGULATIONS Broadband Information Services, Inc. O FM Radio Station Operations Handbook, 2nd Edit, -Most 2nd Class FCC Encyclopedia -Complete Study Guide to the complete collection of FM station data ever published! 320 p. Commercial Radiotelephone Exam -Mammoth 602-p 274 Madison Ave., New York, New York 10016 No. 1'94 $9.95 volume is an intensive no-nonsense course in radio theory EASTERN & MIDWESTERN STATES The Business of Radio Broadcasting -An all -in -one operat- 602 p 445111 No. 652 S10.95 ing guidebook 440 p No. 587 512.95 0 13/C Annc'r. 3rd Class FCC Study Guide -All -in -one FCC 274 Madison Avenue 0 Managing Today's Radio Station -Encompasses manage- Study Guide for Elements 1. 2. & 9 168 pps No. 704 S7.95 New York, New York 10016 ment, programming. sales, training, rates. etc. 288 p 0 Interpreting FCC Broadcast Rules & Regulations, Vol. 212-685-5320 No. 461 512.95 2 -Discusses recent FCC decisions 192 pps No.492 56.95 Kenneth F. Luker, Jr. 0 Computer Programming Handbook -A complete guide to 0 Interpreting FCC Broadcast Rules & Regulations.Vol. WESTERN STATES computer programming and data processing. Includes many 3 -Includes new CAN rules 208 ppsLeather No.60356.95 worked -out examples. 518 p.. 114 ill. No. 752 512.95 0 Commercial FCC License Hdbk-Prepare for 1st. 2nd. and 1212 Hearst Building 0 Modern Radio Broadcasting: Management & Operation in 3rd class exams plus BC and radar endorsements 444 p San Francisco, California 94130 Small to Medium Markets -Straightforward info onall No 582 59.95 415-495-0990 aspects of broadcasting. 288 pps No. 482 S12.95 William J. Healey Broadcast Station Operating Guide -An invaluable "nuts & CAN, Video Tape, MAN & N Studios 11820 Mayfield Apt 214 bolts" reference for everyone at your station. 256 pps. 0 CATV System Engineering-Rheinfelder s accepted technical Los Angeles, California 90049 No. 467 512.95 standard of the CAN industry 256 p No. 298 512.95 0 AM -FM BiC Station Planning Guide -Complete guide to 0 CATV System Management & Operation -A complete 213-826-4543 planning. building. operating AM. FM. 160 p.. 81/2x11" guidebook. 256 pps. No. 1100 512.95 Art Mandell No. 500 512.95 0 CAN System Maintenance -Only book on CATV main- JAPAN 0 Organization & Operation of 13/C Stations -Complete run- tenance 192 pps. No. 1-82 512.95 down on all aspects of running a station 256 pps. Nippon Keisoku Inc. 0 CATV Operator's Handbook -Covers allaspects from P.O. Box 410 No. 533 512.95 franchise to prannIno 352op,,,v or 200 Wu, No. T-73 59.95 0 When Pirates Rules the Waves -Complete story of British Central Tokyo, Japan radio ships. No. 299 S7.95 SAVE 511.85 ON CAN COMBO Tokyo (03) 667-7681 0 Planning the Local UHF -TV Station -Covers location, equip- Yoshi Yamamoto ment. organization, and operation 296 pps.No. T-43 510.00 All 4 books above, only $36.95 0 Color TV Studio Design & Operation -Applicable to any SPECIAL -FREE OFFER! small TV studio; gives all the answers to all the questions - Order S25.00 of books from this ad. send remittance with from design of the building itself to equipment maintenance your order, and we'll send you the above book (1-43) and calibration No. 755 59.95 absolutely FREE! 0 Cablecasting Production Handbook -Brand-new guidebook serves both as an introduction to cablecasting production for WRITING & COPYWRITING the novice, as well as a working handbook for the pro 210 PORTA- 0 Professional B,C Writer's Handbook -Covers ALL torms of p.. 44 ill. No. 768 S12.95 radio 8 N writing! 396 pps No. 635 514.95 0 CATV Circuit Engineering -Bill Rheinfelder shows all about 0 The Anatomy of Local Radio -TV Copy -Scores of ideas on how to design circuits for better CAN Systems. 294 p.. 140 how to increase station billing. 104 pps. No. 1-90 55.95 No. 798 S14.95 PATTERNR 0 The Power Technique of Radio -TV Copywriting -How to 0 Designing & Maintaining The CAN & Small N Studio -For write sales -pulling copy for any purpose 224p No.518 S9.95 cable operators who want to initiate programs. 224 pps OPTICAL TEST MEDIA 0 Promotional & Advertising Copywriter's Handbook -128 No. 615 512.95 ass8' 2 11 No 579 57.95 0 Video Tape Production and Communication TEST CHARTS Techniques -An indispensable how -to -do -it handbook on Precision 9" x 12" opaque test charts Production, Programming & News production 256 p. No. 541 512.95 0 MATV Systems Handbook -Design. Installation & are designed for use with the PORTA- 0 Handbook of Multichannel Recording -For the1st time. PATTERNO Test Chart System. Systems here's a book that covers itall -for both stereo and quad! Maintenance -176 p No. 657 57.95 Discusses every facet of studio design, acoustics. equip- O A Practical Guide to MATV/CCTV System Design & are equipped with the four standard color ment. "how-to." etc. 322 p.. 196 ill, No. 781 510.95 Service -Designing 8.maintaining MATV/CCTV Systems camera set-up charts, and are ideal for 0 The Mini -Documentary: Serializing the Local News 252 p No. 731 S9.95 studio and field use. A full range of spe- Story -Tells you literally everything there is to know about ENGINEERING & TECHNICAL cial application charts in both black and making a mini -documentary. Includes on -air scripts for 8 white or color are available. The system mini-doc series. Fully explains pros and cons of film and O Directional Broadcast Antennas: A Guide to Adjustment. can be used either free-standing or on a videotape. 224 p.. 30 4. No. 797 512.95 Measurement & Testing -Everything you need to know to mic or light stand. 0 Professional Filmmaking -Packed with practical into and operate a DA broadcast antenna. 210 pps. No. 733 512.95 shortcuts. plus case histories. 252 pps. 96 ill.No. 710 59.95 0 Modern Communications Switching Systems -Most ex- TEST SLIDES O Dimensions of Bit Editorializing -Complete handbook on haustive text ever on telephone terminal equipment. trunks. Theseindustry -standard,glass -mounted this subject! 192 pps. No. 697 58.95 switching systems 8 signal routing! 276 p.No. 678 517.95 PORTA-PATTERN,' Test Slides ere highest 0 Radio Production Techniques -Complete text on produc- 0 Electronic Music Production -Practical advice on synthesyt tion. 204 pps. No. 661 512.95 ing a vast array of instrument sounds 156 pps. No. 718 S7.95 quality microphotographic reproductions. 0 Modem Radio Programming -How to program every type of O Pulse & Switching Circuits -1 -stop source of practical pulse Available in 2" x 2" formats for either slide station! 192 p No. 623 S9.95 and switching circuit operation/application data. 256 p projectors or telecine systems. Sets or 0 How to Prepare a Production Budget for Film & Video No. 528 58.95 individual slides. Tape -Complete guide to determining finances! 192 pps. 0 Handbook of Magnetic Recording -A one -stop source for No. 645 512.95 anyone interested in the fine points of the art. No.529 S7.95 TEST FILMS 0 How to Write News for B/C & Print Media -Practical report- 0 How to Build Solid -State Audio Circuits -How to design all Super 8mm or 16mm as follows: black and ing & writing of news. 192 pps. No. 643 59.95 types of audio circuits --biasing. avoiding hum. etc288 white chess -board alignment films and 0 Don't Look at the Camera -Shortcuts to N photography, pps . 190111 No. 606 58.95 color flesh -tone reference film.All films filmmaking. 228 p. No. 649 59.95 0 The Amateur Filmmaker's Handbook of Sound Sync & produced on high -resolution equipment CI Radio Program Ideabook-Programming ideas to build an Scoring -How to organize a complete sound lab. & score and material. audience. 256 p. No. 268 512.95 movies with sound. Applies equally to small CATV/TV 0 Prof. Radio & N Newcasting-Practical refresher for pros. studios. 210 p.. 116111. No. 736 58.95 TRANSPARENCIES 192 pos. No. 535 59.95 0 Pictorial Guide to CB Radio Installation & Repair -Step-by- Advanced state-of-the-art 8" x 10" rear 0 N News Handbook -Solid grounding in basics.style & step approach to setting up a 2 -way radio in station or car. illumination transparencies are fabricated newsroom workings. 256 pps. No. 567 59.95 256 pps. No. 683 58.95 0 Radio News Handbook -Day-to-day guide to improve 0 The Complete FM-2Way Radio Handbook -Explains all on high -impact, photo -sensitive emulsion newscasting. 192 pps. No. 216 57.95 types of systems and stations 294 pps. No. 735 59.95 acrylic plastic. No glass or plastic be- 0 Guidelines for News Reporters -Practical. techniques used 0 Electronics For Shutterbugs-A whole book full of practical tween lens and image to create distortion by "pros." 192 p No. 516 59.95 protects for photographers. 204 p.. 109 ill. No. 679 58.95 or light loss. Rugged and reliable high - 0 Passive Equalizer Design Data by R. Townsley-First NEW resolution black and white geometric pat- ANNOUNCING book on the subject in a decade! 496 pps. No. 626 519.95 terns available in positive or negative for- O Broadcast Antenna Systems Handbook -AM. FM. & TV an- mat. Also available in 31/4" x 4" format for 0 You're On the Air! -For newly employed or present broad- tenna systems! 240 p. No.144 59.95 casters. 192 pps. No. 620 57.95 A Guide to Radio & N BC Engr. Practice -A "how-to" telecine applications. 0 The Man Behind the Mike -Offers practical guidance on book on all aspects of engineering. 288 pps. No. 523 512.95 every phase of announcing. 288 pps.. 26 ill.No. 266 57.95 0 Acoustic Techniques for Home & Studio. by Alton Everest. CUSTOM MEDIA 0 How to Become a Radio Disc Jockey -Self -study guide for Makes this complex subject truly understandable. 224 pps. When standard charts don't meet your izdio.inners 256 p No. 557 59.95 No. 646 58.95 needs, we have the technology and back- 0 Mobile Radio Handbook -All about 2 -way communications. ground to produce any type of specialized Advertising, Sales Promo & Publicity 192 pps. No. 665 57.95 chart or transparency required. Through O Radio Advertising -How To Sell It & Write It -New 8. useful 0 Technical Papers Presented at the NAB Engineering the use of our computer -controlled sys- methods to obtain better results. 228 pps. No. 565 512.95 Conference -Annual issues. 1967 thru 1973. Order by year. tem, our capability is virtually unlimited 0 My First 65 Years in Advedising-by Maxwell Sackheim. Each S10.00 in designing and producing any type or Distills this famous ad man's 65 year ad career into easily as- similable bits that teach the successful creation of selling ads NO RISK COUPON -MAIL ENTIRE AD size of optical test media. and promo. No. 816 59.95 TAB BOOKS. Blue Ridge Summit, Pa. 17214 0 Handbook of Radio Publicity & Promotion -Giant 372 -page, Please send me the TAB BOOKS checked above For complete details and 250.000 -word encyclopedia of 1500 on-airpromo ideas. 372 p. specifications, contact: No. 213 S29.95 l enclose 0 Radio Station Sales Promotions -300 creative merchan- PORTA-PATTERN® dise -moving ideas. No. 214 510.00 O Please invoice on 10 -day FREE trial. 0 Radio Promotion Handbook -How to develop better ratings Telecommunications Industries Limited Name Phone 8. increase sales. 256 p. No. 267 59.95 6335 Homewood Avenue, Suite 204 A Common Sense Guide to Professional Advg.-by Art Company Los Angeles, California 90028, U.S.A. Lavidge. All about how to create successful ad programs. Address Telephone: (213) 461-3561 304 p. No. 612 59.95 Cable: TVCHARTS 0 How to Sell Radio Advertising -Pitches. approaches. and City State Zip clinchers. how to counter customer objections. 320 pps. SAVE POSTAGE by remitting with order. Foreign, add 10% No. 511 512.95 Pa residents. add 6% sales tax. B-95 a Circle 222 on Reader Service Card

140 SEPTEMBER.1975-BM/E BMIE CLASSIFIED MARKETPLACE CLASSIFIED ADVERTISING RATES DISPLAY CLASSIFIED ADVERTISING: $32.50 per inch lx; $30.00 per inch 6x; $27.50 per inch 12x. ALL OTHER CLASSIFIED ADVERTISING 35d per word; minimum $3.50. BLIND BOX NUMBER: $1.00 extra charge. Replies sent to address below will be forwarded to you. PAYABLE IN ADVANCE; send check with order. CLOSING DATE: 5th of 2nd month preceding issue date. BM/E, Monterey and Pinola Avenues, Blue Ridge Summit, Pa. 17214 Phone 717/794/2191

EMPLOYMENT OPPORTUNITIES EQUIPMENT FOR SALE (Cont'd) PROGRAM SERVICES

AMPEX 3000 PORTABLE2" VIDEOTAPE "RAMBLINGS" is a short radio commentary fulfilling FIELD SERVICE ENGINEER RECORDER used by advertising agency; approx- a need in a world that cries out for hope, humor, in- imately 75 hours; excellent condition; maintained by spiration and motivation. 30 programs a month. $30. Extensive Travel. All Benefits. Experi- resident engineer and Ampex personnel; also spare Pierce, Box 91, Spanish Fork, Utah 84660. ence in Color video and switching sys- new head and accessory case. $30,000 firm. Mary Wolka. (313) 872-3540. tems preferred. Contact: Mr. Buzan, Deejays! New Comedy! 11,000 classified one -line gap., $10. Vital Industries, Inc., 3700 N.E. 53rd Catalog FREE! Edmund Orrin, 2786-M West Roberts, BROADCAST AND RECORDING EQUIPMENT: Scul- Fresno, CA. 9:3705. Avenue,Gainesville,FLA. 32601 ly, V.I.F. International, Metrotech, Langevin, Electro- Phone: (904) 378-1581. dyne, Q.R.K., Micro-Trak, MRL, Nortronics, McMartin, U.R.E.I., E.V., A.K.G., Stevenson, Gately, D.B.X., Ad- FRANCHISES AVAILABLE vent, Altec, Fairchild, Audio Designs, 3M, Magnecord, Te- lex, Inovonics, Nagra, Uher, Tape -Athos, Package Deals, The town of Dunkirk, NY, hereby invites the sub- BROADCAST EQUIPMENT, PRODUCT Installations, Service, Request Flyer. Weigand Audio, DEVELOPMENT, SALES EXECUTIVE Middleburg, PA. 17842. (717) 837-1444. mission of sealed bids on a cable television fran- EXPERIENCED IN STUDIO OPERATIONS chise for the above named town. Bids will be re- AND VTR EDITING. AMPEX, SCULLY, TASCAM, all major professional ceived until 4:30 PM, DST, on the 15th day of Sep- Submit resume and desired salary. audio lines. Top dollar trade-ins. 15 minutes George Wash- tember 1975, at the town clerks office,11171 ington Bridge. PROFESSIONAL AUDIO VIDEO COR- Urban Road, Dunkirk, NY 14048, at which time and ATTN: JOHN KING PORATION, 342 Main Street, Paterson, N.J. 07505. (201) place all bids will by publicly opened and read. 523-%%33. ELPA MARKETING INDUSTRIES, INC. Specifications and instruction for biders may be ob- NEW HYDE PARK, N.Y. 11040 tained at the same office on business days, other MICA AND VACUUM transmitting capacitors. Large stock; immediate delivery. Price lists on request. SUR- than Saturday, Sunday and holidays. The town Representatives to sell professional television termi-COM ASSOCIATES,1147VeniceBoulevard,Los assumes the right to reject any or all bids. Bids nal equipment -custom production switchers, distri- Angeles, Calif. 90015. (213) 382-6985. bution systems, processing amplifiers, etc. Protected received after the stated hour and day shall be territories, commission basis. A few areas open. In- CHARACTER GENERATORS: Demo/trade-in rejected. Any bid submitted will be binding for 180 dustrial Sciences. Inc., P.O. Box 1495, Gainesville, equipment available - models include D-2400, D-1500, days subsequent to the date of bid opening. FL. 32602 D-1032, DT -1, and MG -1. All warranted - reasonably priced. First come basis. Contact: Anthony Matta, Datavision Video Products, 3M Company, 15932 Shady PROFESSIONAL CARDS EQUIPMENT FOR SALE Grove Road, Gaithersburg, Maryland. 20760. (301) 948-0460. COHEN & DIPPEL, P.C. UP TO 45% OFF One stop for all your professional audio requirements. Bottom line oriented. F.T.C. Brewer, Box 8057, Pensaco- CONSULTING ENGINEERS la, Florida 32505. on Stage, Studio and Projector lamps. 527 Massey Bldg. Completestocks.Rapidservice. RCA TR-22 COLOR VTR'S (2) in excellent condition, (202/ 783-0111 SITLER'S SUPPLIES, INC., 215 N. complete with books, spare heads. Low cost high band Washington. D. C. 20004 conversions available. Call or write with your offer for Iowa Ave.,P.O. Box 10-M, Wash- one or both. Ellis Feinstein, KMED-TV, Medford, Member AFCCE ington, Iowa 52353. Phone (319) 653- Oregon. 97501. (503) 773-7373. 2123. RCA TT5OAH TELEVISION TRANSMITTER presently operating channel 11. Good condition and may be inspected. Stdeband filter available. Contact Chief RALPH E. EVANS ASSOCIATES SPOTMASTER PARTS -24 hour service -repairs and Consulting TeleCommunications rebuilding of your equipment. Franchised SPOTMAS- Engineer, WBAL-TV, 3800 Hooper Ave., Baltimore, TER repair service. COMMUNICATION MEDIAS/ Md. (301) 467-3000. Engineers BROADCAST COMPONENT DISTRIBUTORS, P.O. AM-FM-TV-CATV-ITFS Microwave: Television STL System Raytheon KTR 2 7 Box 54, Allentown, PA. 18105. (215) 437-0607. GHZ dual link far audio and video complete with 3500 North Sherman Boulevard dishes,trans.line and 8'x12' reflector. Write MILWAUKEE, WISCONSIN 53216 Broadcast mixer fur remote out of studio programming. Phone: (414) 442-4210 ('an he used as inexpensive second console for college and WXON-TV, Box 2020, Southfield, Michigan 48075 or small radio stations. D. -1.'s can now originate program- call (313) 355-2901. Member AFCCE ming at home. Simultaneous mixing of two stereo phono- MICROTIME 640 DIGITAL TBC. New, never been graphs, a tape machine and a microphone. Precue for all used, at dealer cost - $9,000. Full factory warranty. inputs with built-in monitor headphone amplifier. Send This unit is in inventory due to customer cancellation. for literature. .s325. Professional discount, use letterhead. Immediate delivery. Call 305-843-8982, J.D. Ivey Cor- Midwest Engineering Associates GLI, Box 2076. DEPT BM/E, Brooklyn, N.Y.11201 poration, 617 West Central Blvd., Orlando, Fla. 32801. Phone: (212)87:1-6992. Consulting Engineers ENG EDITING PACKAGE. 1- New Tri-EA 5 Editor F.W. Hansel,P.E. Solid-state audio modules -console kits, power amplifier with 1 - IVC 870C and 1 - IVC 825C (VTR's used, BSEE; MSEE kits, power supplies. Octal plug -insmic. eq. line, disc. but with new head and new machine warranty). tape play, tape record, amplifiers. Audio & tape bias oscil- Recorders have RF output for use with D.O.C. Com- 7304 N. Oxford, Peoria, Illinois 61614 lators. Over 50 audio products. Send for free catalog and plete package $10,000: D.O.C. extra $2,500. J.D. Ivey applications, Opamp Labs. Inc.. 10:1:1N. Sycamore Ave. Corporation, 617 W. CentralBlvd.,Orlando, FL (309) 691-3426 Los Angeles. Calif. 90036. (21319:14-3566. 32801. (305) 843-8982.

WHATEVER YOUR EQUIPMENT NEEDS -new or MCCLANATHAN & ASSOCIATES used -check us first. We specialize in broadcast equip- INSTRUCTIONS ment. Send $1.00 for our complete listings. Broadcast Consulting Engineers Equipment and Supply Co., Box 3141, Bristol, TN 37620. APPLICATIONS &FIELD ENGINEERING First phone through tape recorded lessons at home plus TURNKEY INSTALLATIONS -RADIO & TV one week personal instruction in Washington, D.C., At- Over $1 million in used recording -sound -film equip- lanta, Boston, Detroit, New Orleans, Minneapolis, Seattle, Domestic and Foreign ment. Send $1, refundable, for list to THE EQUIP- Denver, Portland, Los Angeles. Proven results. Our 17th P. O. Box 750 MENT LOCATOR, P.O. Box 99569, San Francisco, PORTLAND, OREGON 97207 CA. 94109. year teaching FCC license courses. Bob Johnson Broad- cast License Training, 10600 Duncan, Manhattan Beach, Phone: 503/246-8080 SYLVANIA LAMPS 50% OFF! Quartz, Projection, Calif. 90266. 213-379-4461. Studio, Enlarging, Movie Lamps, in stock for immediate delivery. Write or call for price list. Sawyer PROFESSIONAL ENGINEER's LICENSE GUIDE. Camera Company, 6820 Santa Monica Blvd.Hol- $6.95 from P.E. Guide, Box 1897,Rockville, Md. USE BM/E's CLASSIFIED lywood, CAL. 90038. (213) 466-6113. 20850. SPOTMASTER, FIDELIPAC, RUSSCO, ROH, MARKETPLACE TO ELECTRO-VOICE, OTARI, RAMKO, SCOTCH, PROGRAM SERVICES STANSON, NORTRONICS, SHURE, SENN- HEISER, TELEX, MAGNECORD AND VIKING are REACH OVER 28,000 all items distributed and serviced by COMMUNI- "FREE" CATALOG ... Everything for the Deejay! Cus- CATION MEDIAS/BROADCAST COMPONENT tom I.D.'s, Promos, Airchecks, Wildtracks, Books, FCC DISTRIBUTORS, P.O. Box 54, Allentown, PA. 18106. Tests, Comedy, and more! Write: Command, Box 26348- (215) 437-0607. "Sudden Service" our specialty. A. San Francisco 94126. BROADCASTERS!

SEPTEMBER, 1975-BM/E 1/ JVC Industries, Inc. 91 ADVERTISER'S INDEX FM/SCA/TV Kaman Sciences Corp. 40

Acrodyne Industries Inc 103 Laird Telemedia, Inc. 118 Transmit still TV pictures AKAI America, Ltd. 13 Lenco Inc. Electronics Div. 79 AKG 51 LPB, Inc. 77 on the 67 kHz subcarrier Alpha Electronic Services channel for: Inc. 74 American Data Corp. 55 3M Mincom Video Amperex Electronic Products 67, 68, 69, 70 instructional Corp. 56, 94, 95 McMartin Industries, programming Ampro Corp. 76 Inc. 18, 65, 90, 135 Aristocart 136 Marconi Electronics 30, 31 community services Avtel, Div. Microtime 128 Marconi Instruments, Inc. 119 Marti storecasting 123 Microtime, Inc. 106 Contact us for hardware Barbizon Electric Co 130 Microwave Associates Inc. 115 specifications. Belar Electronics Lab. Inc. 132 Modular Audio Products, a unit Bennet Tower Painting 135 of Modular Audio Dev. 120 Berkey Colortran Inc 87 Monroe Electronics, Inc. 80 Bogner 72 Moseley Video Systems, Inc. 27 Broadcast Communication Devices 113 Broadcast Electronics, Inc 110 Ntl. Assoc. FM Broadcasters 126 cvi Buhl Optical Co. 84 National Video 16 Colorado Video Inc. Rupert Neve 97 Nu rad, Inc. 137 P. 0. Box 928 Camera Mart 59 Boulder, CO 80302 Canon, Scoopic Div. 107 Panasonic 22, 23 (303) 444-3972 Canon, U.S.A. Inc. 101 Capital Magnetic Products 73 Paperwork Systems 10 TWX 910-940-3248 CCA Electronics 127 Potomac Instruments 18 COLO VIDEO BDR Central Dynamics Ltd 3, 7, 65, 116 QRK 136, 139 Chiron Telesystems 12 Pioneers in Cinema Products Corp. 77, 83 Rapid Q 84 compressed video Cohu Electronics, Inc 109 Collins Radio Group 45 RCA Broadcast Systems 14, 15 RCA Service Co. Colorado Video Inc. 142 79 Recortec, Inc 92, 93 Circle 231 on Reader Service Card Computer Image Corp. 11 Roh Corp 103 Comrex 138 Russco Electronics 138 Consolidated Video Systems 122 Control Design Corp 63 VIDEO HELP! Cosmicar Optical Co 108 Schafer Electronics Corp. 100 Tape tension is the "pulse" of your Shintron Co., Inc. 111 video recorder/player. TENTEL has Datatek, Corp 75 Shure Bros. Inc. 85 a tension gage designed for your Sony Corp. of America Cover II application to provide a fast, ac- Datatron, Inc. 61 curate measurement of the tension Datavision, Inc. 125 Spectra Sonics 137 with the machine "in operation." DBX, Inc 82 Stanton Magnetics 34 Delta Electronics 48 Strand Century 102 Dolby Labs 121 Studio Tape Exchange 132 Dynair Electronics, Inc. 124 Superscope 117 Dynasciences 96 TAB Books 140 Eastman Kodak Co. 9 Tech Laboratories, Inc. 90 Eimac, Div. Varian Cover III Techniques by Panasonic 35 Electronic Interface Systems, Tektronix, Inc. 19, 86 Inc. 135 Telecommunications, Inc. 140 English Electric Valve Co. 53 TeleMation, Inc. 81 ESE 112, 134 Telemet 17 Television Products 114 Fernseh, Div. Robert Bosch Tentel 142 TENSION PROBLEMS SHOW UP AS: Corp. 37 Thomson CSF Labs, Inc. 21 Time & Frequency Tech, Inc. 136 Interchangeability problems Fidelipac 64, 78 between two or more recorder/ Fung Engineering 133 players. Ultra Audio Products 132 Horizontal time base instability Unimedia which causes flagging and picture Garner Electronics, Inc. 139 24 distortion. Garron Electronics, Inc. 139 UREI 131 Premature headwear and tape Grass Valley Group, The 5 wear due to high tension. Video Aids of Colorado 104 Approved by Ampex, I.V.C., and Harris Corp Videomax 25 Sony, (Great for U-Matics). 105 Hervic Corp. 47 Video Tape Co., The 133 From $179. Send for additional infor- Viscount Industries 98 mation or call today. IGM, Div. of NTI 130 TEL 1408) 377-6588 Avenue Inovonics, Inc. 134 Ward Beck Systems, Ltd Cover IV 'ifornia 95008 International Tapetronics Wilkinson 99 Corp. 8, 58 World Video Corp. 128 on Reader Service Card SEPTEMBER, 1975-BM/E You will find EIMAC tubes in all countries of the world This is the new EIMAC X-2159 super -power tetrode, rated at 1.3 megawatts power output, 100% modulated. A second member of this family is the X-2170, rated at 600 kilowatts output, 100% modulated. These advanced tubes are ready-in stock now-for today's worldwide broadcast service. For technical information on EIMAC products, contact the EIMAC Division of Varian, 301 In- dustrial Way, San Carlos, California 94070. Or any of the more than 30 Varian/EIMAC Electron Device Group Sales Offices throughout the world. CIa

Circle 223 on Reader Service Cad Trendsetting technology blends with timeless ele- gance in every Ward -Beck console. The latest high performance Series 460 modules feature totally balanced circuitry and state -variable techniques. Configurations are planned for operational ease and flexibility. Ward -Beck continues to challenge contemporary standards with innovative designs that reveal new dimensions in the Art of Sound.

Tomorrow's Technology Today. Ward -Beck Systems Ltd., 841 Prog-ess Avenue, Scarborough, Ontario M1H 2X4 Telephone (416) 438-6550. Telex 06-23469 Ward -Beck Systems Inc., 290 Larkin Street, Buffalo, N.Y. 14210

Circle 224 on Reader Service Card