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JANUARY, 1966 7

www.americanradiohistory.com DECEMBER 1965- JANUARY 1966

RADIO -TV EXPERIMENTER

JULIAN M. SIENKIEWICZ Editor WA2CQL /KMD4313

WILLIAM HARTFORD Technical Editor KKD7432 ANTHONY MACCARRONE Art Director Zip through Scott's new IRVING BERNSTEIN Cover Art Director EUGENE F. LANDINO Associate Art Director solid state FM stereo tuner kit RON STAFFIERI Art Editor in one afternoon JACQUELIN JAYNE Art Associate S. KRANE Advertising Director Four to six hours! That's all you need to zip through ELLIOT after Manager Scott's new LT -112 FM stereo tuner kit. Start JIM CAPPELLO Advertising enjoy superb stereo at dinner. Scott Director lunch ... LEONARD F. PINTO Production state circuitry is the key to the LT.112's su- solid Production Manager perior performance. Costly silicon transistors give CARL BARTEE on the Assistant Production Manager performance unapproached by any other kit HELEN GOODSTEIN LT -112 is kit -brother to Scott's best- Director market. The CLIFF SHEARER Promotion selling 312 solid state stereo tuner, of which Audio Executive Editor tuners anywhere." JOSEPH DAFFRON said, ". . one of the finest Your LT -112 arrives with all critical circuitry pre - wired, pre- tested, pre -aligned, and mounted on heavy - exclusive life - duty printed circuit boards. Scott's President and Publisher details every step size, full -color construction book B. G. DAVIS ... makes perfect wiring almost automatic. You'd be so never believe a kit so easy to build could Executive Vice President and Assistant Publisher packed with features. Built into the 1T -112 is a new JOEL DAVIS Scott invention ... the Tri- modulation meter, used Indicator, and Editorial Director for a Signal Strength Indicator, Zero Center Vice President and Alignment Meter. See your Scott dealer today, HERB LEAVY, KMD4529 one and pick up an LT -112 tuner kit ... $179.95 plus enjoyable afternoon will net you a lifetime of listening pleasure. 3 14764), is published bi- month- RADIO -TV EXPERIMENTER, Vol. 19, No. WassinsnwwwwwwWWwwwumionansommiumexowm., CO., a subsidiary of Davis .... .-.... ly by SCIENCE & MECHANICS PUBLISHING subscription offices: 505 Park Publications, Inc. Editorial, business and subscription (six issues)- Ave., New York, N. Y. 10022. One-year and three -year sub- $4.00; two -year subscription 112 issues1- $7.00; per year for postage outside scription 118 issues)-$10.00. Add $1.00 New York, 505 Park Ave., the U.S.A. and Canada. Advertising offices: Michigan Ave., 527 -0330; los Angeles: PL -2 -6200; Chicago: 520 N. Atlanta: Pirnie & Brown, 3108 6253 Hollywood Blvd., 213.463 -5143; Len Osten, 9 Garden Rd., N.E., 404 -233 -6729; Long Island: En Piedmont advertising Street, Great Neck, N.Y., 516- 487 -3305; Southwestern St. Louis, CH 1 -1965. representative: Jim Wright, 4 N. Eight St., t` postage CONTRIBUTIONS must be accompanied by return SCOTT EDITORIAL assumes with reasonable care; however, publisher & components write: and will be handled For complete information on Scott's kits for return or safety of manuscripts, art work, or no responsibility to the Editor, H. Scott, Inc., 111 Powdermill Road, photographs. All contributions should be addressed H. Park Avenue, New York, New York 10022. Maynard, Mass. Dept. 565 -10 Radio -TV Experimenter, 505 HIFI. International, Maynard, Mass. Cable at additional Export: Scott class postage paid at New York, New York and west of Rockies. Prices and speci- Second Co. Prices slightly higher office. Copyright 1965 by Science and Mechanics Publishing fications subject to change without notice. mailing RADIO -TV EXPERIMENTER 8

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JANUARY, 1966 9

www.americanradiohistory.com BO OKMARK FRAM by1304w4k. GIANT NEW CATALOG

In this issue of Bookmark your of Bookworm has reviewed texts covering many electronic interest areas including one industry "Alger Hiss" story on a latter -day Edison. Inside Motorola. The Founder's Touch is the story of Paul Vincent Galvin, who at the time of his death in 1959 was Chairman

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Address . ... and one of FREE of the Board of Motorola, Inc., I City State the most dynamic leaders on the American i Please be sure to show your Zip No business scene. The Founder's Touch is also the exciting account of a vast business built from scratch, and the story of a man whose life reflected the whole changing world of the twentieth century. Born of pioneer stock in a small Midwest- ern town, Galvin was essentially a child of his time. But he could not be contained by limited horizons of his birthplace, and in 1923, touched by the first transitions of Amer- ican life from farm to city, he moved to Chi- cago where he began to manufacture storage batteries with his brother Joe. Galvin had been deeply affected by World War I, and suddenly, like America itself, he became Top sensitivity, aware of the world "outside." A new Amer- ican society was forming; industry had even in the Arctic... grown and was growing still; radio was little more than a novelty, but on the wave of its The new Amphenol "Six Hundred" series maintains one microvolt sensitivity, even at minus 10°F to plus 10 °F popularity, Galvin's small manufacturing -signal pulling capability you can depend on, even in enjoyed a mild success. perform reliably company the Arctic. These new transceivers his limitless energy demanded under the most rugged conditions. Completely solid - However, state right down to the electronic solid -state switching, new outlets, and with his brother and some these dual conversion superhet receivers with four be selectivity. friends he developed a radio that could stages of amplification provide outstanding appear- Powerful 31 watt output, 10 crystal -controlled used in the relatively new motorcars channels. Model 600, 12 VDC mobile unit, $169.95. ing on the highways. From that time on, 120 VAC-12VDC power Model 625, with universal and his life of joyous and de- supply, $189.95. At Amphenol distributors. Galvin's story, voted labor, also tells the dramatic story of AmphEnot DISTRIBUTOR DIVISION American business itself. ® Amphenol Corporation (Continued on page 12) 2875 S. 25th Ave., Broadview, III. 60155 RADIO -TV EXPERIMENTER 10

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JANUARY, 1966 11

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SfflIJ TV TIIII[ M5'T Continued from page 10 Cisin's Copyrighted RAPID With H. G. many, his "TV TROUBLE SHOOTING METHOD" His dreams were the dreams of Without experience or knowledge, this guaranteed new method word was his contract, to be honored at ahy of servicing TV sets enables you to DIAGNOSE TV troubles as rapidly as an expert. NO THEORY -NO MATH -You can locate cost. Galvin's, achievements, his success as a all faults in record -breaking time regardless of make or model. "TV TROUBLE SHOOTING METHOD" is the most valuable business leader and a man through the De- aid to TV servicing ever written. Be a TV Trouble Diagnosti- cian. Increase your present earnings. Open your own Profitable pression, World War II, and the great expan- Business or get a high - paying skilled Job. sion in the years that followed all tell Motor- It's all in this book .. . Nothing more fo Pay-Nothing else to Buy ola's story as well. From its inception, Alphabetically listed are 85 picture troubles, over 58 raster and 17 sound troubles. By this unique copyrighted method you know Motorola's dedication to its employees is EXACTLY WHERE the trouble is: plus step-by -step instructions, including 69 RAI'ID CHECKS, help to find faulty part. unique in the annals of American business. 13 IMPORTANT PRELIMINARY CHECKS NEED NO IN- STRUMENTS! Of the 69 Rapid Checks, OVER 45 ALSO Paul Galvin's faith in himself and his REQUIRE NO INSTRUMENTS! Rapid checks include emergency checks for distorted pictures, defective tubes including product commanded the respect and loyalty FIX tube, plus 57 others. ALL EXPLAINED IN SIMPLE LANGUAGE. PERFORMED WITHOUT INSTRUMENTS, of everyone who worked for him. He was MANY CHECKS USE THE PICTURE TUBE AS A GUIDE. devo- H. G. Clain, the author, is the inventor of the AC /DC midget rewarded by the complete trust and radio. He licenses RCA. AT &T, etc. He has also trained thou - was a reflec- sands of technicians now owning their own prosperous TV service tion of his staff. If Galvin's life organizations or holding highly paid TV positions. His years of it experience are embodied in this remarkable new book. tion of America in the twentieth century, Guaranteed Money Back in 5 Days if Not Satisfled! is also a life inextricably bound to that giant IABSOLUTELY FREE with each order: Your choice of Cisin's newest books: BASIC ELECTRICITY - corporation, which still retains "the Galvin Vol. 1 or TV -RADIO TUBE SUBSTITUTION GUIDE. These sell for 50e ea. ACT NOW-get paid amply and affec- 2 books postpaid at cost of only one! touch " -a touch this book RUSH COUPON NOWT tionately chronicles. Prepared by Harry

N. O. CISIN, Consulting Engineer -Dept. RE -4 Petrakis, the text was published by McGraw - Amagansett, N. Y. Enclosed find $1. Rush Trouble Shooting Method and free book Hill Book Company, 330 West 42nd St., New marked above (If not marked Basic Elec. will be sent). Send all 3 books. Enclosed find á1.50 York, N. Y. 10036 and it is available at most Name book stores. Address City Zone State Transistorized. The world of electronics is expanding greatly, and everyone knew that in the course of time it would catch up with the automotive world. During the early days of automobiles, the car owner had to be somewhat of a mechanic to keep the car (Continued on page 14)

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12 RADIO-TV EXPERIMENTER

www.americanradiohistory.com Some plain talk from Kodak about tape: Kodak The meat of the matter... and some boxing news

Undistorted output from a tape enough 1200 -cycle signal (third helps to define the upper limit -as from any other link in the harmonic) to represent 2% of realism of the recording, the chain of audio components-is at the 400 -cycle signal level. This higher the undistorted output, the very heart of high fidelity en- spells "uncle !" We use 400 cycles the easier it is to reproduce the joyment. Distortion (or the lack for convenience, but insist upon massed timpani and the solo tri- of it) is simple enough to evalu- a reasonably long wavelength be- angle each at its own concert hall ate in theory. You start out with cause we want to affect the entire level. And this is just another something measurable, and you oxide depth. area where Kodak tapes excel... reproduce it. Everything added The more output level we can our general- purpose /low -print (or subtracted or modified) by get (holding the reproduce gain tape (Type 31A) gives you up the reproduction, that can be constant, of course) before reach- to 3 decibels more crisp, clean measured or heard, is distortion. ing "uncle," the higher the un- output range than conventional Since most kinds of distortion distorted output potential of the tapes. increase as you push any com- tape. Simple, what? ponent of your system closer to its maximum power capability, "Wadayamean - undistorted you have to label your distortion output at two percent ?" value to tell whether you did this while coasting or at a hard pant. That's what makes a Miss Amer- ica Contest. Two percent third Cry "uncle" harmonic is a reference point that we like to contemplate for a To make the distortions contrib- picture of oxide performance. uted by the tape itself big enough Since distortion changes the orig- to measure and control, we simply inal sound, it becomes a matter 2% third harmonic distortion repre- drive the tape until it hollers of acumen and definition how sents the practical limit to linear "uncle" and use that power ref- little a change is recognizable. If recording. erence as our benchmark. Here's you're listening, two percent is a the procedure. Record a 400 - compromise between a trained Kodak tapes-in the five- and cycle signal (37.5 -mil wavelength and an untrained ear. If you're seven -inch sizes -now look as at 15 ips) and increase its level measuring, it comes at a con- good as they sound. We've put until in a playback, which is it- venient point on the meter. the package identification on a self pristine, you can measure Because undistorted output removable sleeve and designed a tape library box with a smart new The great unveiling- Kodak's new library box with removable sleeve! look. This new box features dur- able one -piece construction, full index space, plus detailed tape use instructions on the inside. Kodak Sound Recording Tapes are available at most electronic, camera, and department stores. New 24 -page, comprehensive "Plain Talk" booklet covers all the important aspects of tape performance, and is free on request. Write: Department 8, Eastman Kodak Company, Rochester, N. Y. 14650.

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JANUARY, 1966 13

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Continued from page 12 look l0 going; today knowledge of automechanics is no longer essential. However, the intro- Icelite tor duction of transistor ignition systems has brought about new interest in automotive electronics. Transistorized Ignition Systems me aest In miers & sns, too LONG NOSE AND DIAGONAL PLIERS

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SIDE CUTTING PLIERS systems and their workings, and then provides complete, valuable information on semiconductors, Zener diodes, and transistor TRANSVERSE ignition systems. Besides aiding do-it -your- CUTTING PLIERS selfers in building their own transistor ignition systems, it also gives the specifications and UTILITY PLIERS characteristics of leading commercially produced systems and kits. Published by John F. Rider, Publisher, Inc., 850 Third ELECTRONIC SNIPS Avenue, New York, N. Y. 10022. Ham Shack. An enlarged and up -dated edition of Building the Amateur Radio Same professional quality as famous Xcelite screw Station is an all- inclusive guide for the con- drivers and nutdrivers. Forged alloy steel construc- struction of a Novice- or General -Class ham tion. Precision machined. Scientifically proportioned. radio station. Every necessary tool, and its Variety of sizes. All available with permanent. plastic coated Cushion Grip handles for extra working com buüdbng fort (except slip joint models). the amateur TadIo station r-- XCELITE 144 pages 88 illus. XCELITE INC. 64 BANK ST., ORCHARD PARK, N. Y. Paperback Send Catalog Sheet N664 on pliers and snips. $3.45 name use, is fully described. Besides giving a com- address plete listing of all parts needed to construct city state & zone a station, it explains each electronic component's function. The text also tells how to (Continued on page 16)

14 fi"^T^,-TV EsPERIMENTER

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Then you build a more advanced radio, learn more advanced theory was ready to spend $240 for a Course. and techniques. Gradually, in a progressive manner, and at your own rate, you will but I found your ad and sent for your find yourself constructing more advanced multi -tube radio circuits, and doing work Ilk. a Kit." Technlclan. Ben Valerlo, P. O, Box 21, Magna. Drolegsional Radio Receiver, Transmitter, Code Oscillator, Si gnal "The Edu -Kits are wonderful. Here Included In the 'Edu -Kit" course are Utah: and also Tracer Square Wave Generator and Signal Injector Circuits. These are not professional I am sending you the questions radio constructed by mean of n professional the answers for them. I have been In "breadboard" experiments, but genuine circuits, known seven years, but like wiring and soldering on metal chassis, plus the new method of radio construction Radio for the last our r .ular AC cr DC house current. with an "Printed Circuitry." 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www.americanradiohistory.com 'tired of Bookmark hunting for Continued from page 14 "needles" in follow schematic and wiring diagrams. Chas- haystacks sis layouts are provided and all text instruc- ' tions are clarified with many diagrams and C w illustrations. The text is authored by Jack (W2MDL) and Julius (W2PIK) Berens who also authored Getting Started in Ama- FIND THE teur Radio. Published by John F. Rider PRECISE Publishers, Inc., 850 Third Avenue, N. Y. AUDIO 10022. ACCESSORY SWL Special. The How to Listen to the World book is published in Denmark by the YOU NEED former publisher of World Radio -TV Hand- FAST! book, Mr. O. Lund Johansen. How to Listen Jacks Plugs Adaptors Couplers Extension Jacks o Speaker gt WÉÓ p' Controls "Mini -Mix " - mixers, etc. 174 pages look for the Paperback SwVtccRa.t® $ 2.75 to the World gives the shortwave listener AUDIO ACCESSORY SELF- SERVICE CENTER facts on every facet of this hobby that he At last! All the confusion and "wait" gone. Fail -Safe needs to know. Unlike several books on quality. Packages factory sealed, precisely labeled by name, type, mating part, price. Guaranteed. this topic, published in the past, this book Send for Complete Catalog: contains 38 separate chapters, totaling the SWITCHCRAFT, INCORPORATED work of some 25 different authors and spe- 5563 No. Elston Ave., Chicago, Illinois 60630 cialists in the field. For example, wave propagation in discussed by Alan Shapley ASSEMBLE THIS ALL BAND BATTERY SHORT WAVE RADIO FOR S9.95! of the National Bureau of Standards, short- LISTEN AROUND THE WORLD -UP TO 12,- 000 MILES AWAY! Ships, Aircraft. Voice of wave broadcasting by John Gayer of the America, Russia, London, Australia. Amateur. Citizens, Police - Also USA Broadcast. 5 ITU, shortwave clubs by the il WAVE BANDS. 4s to 40 MC. Calibrated tun. president of a4 ing dial. Wt. only 3 lbs. NOW HEAR THE WHOLE WORLD TALKING DAY OR NIGHT: the Newark News Radio Club. The pages 11ac SEND ONLY $2.00 (cash, ck, mo.) and pay postman $7.95 COD postage or send $9.95 are jammed -packed with information not ua140 r. for P.P. delivery. Complete Basic Kit as shown.a1 Free Broadcast Coil and Plastic Case you order nowl Available only from available in any other publication. Western Radio, Dept. RRE -11, Kearney, Nebr. Some of the chapter headings are: Re- ception Conditions, How to Identify Sta- A JOB or a POSITION ? tions, Programs in English, Listening to the The difference is ELECTRONIC MATHEMATICS Amateur Bands, DX -ing on the Medium Waves, How to Report, Listening to the NOW A NEW WAY TO LEARN -I. H. S. I. WAY. A complete home study course in electronic math to Satellites, Buyers Guide, Learning Languages help you get the position you want -MORE MONEY - MORE RESPECT. by Radio, DX -ing TV Stations, etc. Many COURSE PREPARED BY COLLEGE PROFESSORS who have lectured to thousands of men on math and electronics parts stores or by mail from engineering. You learn at home Quickly, easily -AS FAST as you want. GILFER Associates, Box 239, Park Ridge, YOU SIGN NO CONTRACTS Pay only If aatlsfled -you owe It to yourself to examine N. J. 07656. the INDIANA HOME STUDY INSTITUTE COURSE IN ELECTRONIC MATH. Tips on Taping. "The tape recorder gives FREE BONUS -if you join now, a refresher course in basic arithmetic. the American family its first new history Write for Brochure -No Obligation medium since George Eastman invented the THE INDIANA HOME STUDY INSTITUTE snapshot camera." So says, Lester C. Wor- Dept. RTV -12, P. O. Box 1189 den, and publisher Panama City, Fla. 32402 author of the new book, How To Make A Family Album In Sound.

16 RADIO -TV EXPERIMENTER

www.americanradiohistory.com is written for the family which wants to have I !ow to an album of recordings ranging from baby's make a first sounds to grandma's reminiscences. Famtly Albutty s'ttSound These can be preserved for decades. Re- ,a.. cordings can also be made in conjunction 44 pages with slide or movie coverage to preserve a Plastic vivid, living image of family history and bound activity. Mr. Worden is also the author of A $3.00 Living Legacy, How To Make A Recording Of Your Life Story (Time Mag., April 3, 1964). The publication retails for $3.00 and has based his book on the Author Worden may be purchased in local bookstores or by while most people have an idea theory that mail to Lester C. Worden, 10455 Ashton want to use a tape recorder, as to how they Avenue, Los Angeles, California 90024. they need guidance and a source of ideas. This almost magic means of preserving the present for the future requires some original thinking along new lines. In his book, Worden deals with the use of tape for family recording under such interesting chapter headings as, "Meet The Magnetic Memory," "Sound For Its Own Sake," "Uses Of The Portable Recorder In Traveling," "How To Work With Children," "How Do You Make Your Living?," "The Hidden Mike," "How About A Sound Diary," "Sounds Of The Times." How To Make A Family Album In Sound ,, ,,,,,IIIIIIIIII 1,1,1,1,,,,11,111,,,,,,,,1,1,1111 u Ill1,,,,,,,,,,,,,0,,,

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ELECTRONIC CHRISTY TRADES SCHOOL INC., Dept. A -1311 TESTING KIT 3214 W. Lawrence Ave., Chicago, Illinois 60625 FURNISHED Please RUSH FREE book on America's fastest- growing industry, Appliance Repairing, and special form for paying from earn- SEND FOR ings while learning. FREE BOOK Name tells you how to do it! Address City Storie

17 JANUARY, 1966

www.americanradiohistory.com frequency of exceptional stability with maximum protection against those little unwanted spurious signals which have been known to cause TVI. To further maintain stability, a Zener diode is used in the power circuit and special close -tolerance crystals are employed which provide a transmitted tolerance of± .003, which is well below FCC specifications and regular industry manufacturing standards. Other features include: dual conversion receiver, special high gain audio amplifier for peak This time round we have some extra -in- more "talk power," negative clipping teresting gear for.your consideration-a new and high level saturation limiting to prevent and different CB rig (stop asking yourself, over-modulation and distortion, squelch and "What could be different in a CB rig ?"); a noise limiting circuits designed especially for most unusual CB emergency accessory; and this unit, a TVI filter, dust -proof enclosed a new aid -to-operating which could be the plug -in relay, plug -in ceramic mike, corro- newest "in" thing to add to your CB shack. sionproof aluminum construction with So hold on to your capacitors, here we go! heavy -duty, lifetime epoxy finish. What's New, Pussy Cat? The new CB Remember we said "ultra- compact ?" Well rig is from Pearce Simpson, P.O. Box 308, it's only 81/2 inches wide, 23/4" high, and Riverside Station, Miami, Fla. 33135. It's 81/2" deep -will fit into even the smallest car called the "Director," and is an ultra -com- with a negative ground electrical system (12 pact 23 channel unit, completely transistor- volt). It weighs but 5 pounds! The Director ized in its circuitry. is supplied with all crystals and a universal, all angle mounting bracket on a slide rail. Price of the unit is $299.90, and Pearce- Simpson will send you further details and literature if you contact them. Pooped Power Pepper. Next we see that the Zeus Portable Generator Co., 12435 Euclid Ave., Cleveland, Ohio 44108, has ex- panded their line of excellent portable electric generators.

Pearce -Simpson "The Director" Solid -state 23- Channel CB Rig

For one thing, the Director takes less current to operate than an automobile dashboard clock and will still function even when the car battery is so low that it will not turn over the engine. Best of all, when the car's battery is in normal operating condition, you can operate the Director for extended periods without draining the battery. Being transistorized, the Director requires no warm -up time and is on the air instantly. Zeus Portable Power Generator The something "new" in the unit is some clever circuitry which Pearce -Simpson calls These generators are ideal for CB clubs Hetro -Sync. This is a frequency synthesis wishing to keep a stand -by power supply circuit which requires only two mixed fre- available in times of local power -supply quencies instead of the usual three. The re- failure. Operating from either regular gaso- sult, Pearce -Simpson claims, is a transmit line or propane gas (dépending upon the

18 RADIO-TV EXPERIMENTER

www.americanradiohistory.com particular model) , they deliver from 1000 watts of 115 volts AC at 8.7 amps all the way to dual voltage units capable of producing 3000 watts of 115/230 volts AC at 26.2/13.1 amps. They have even equipped their fourteen different models with mufflers to keep the operation of the generator as quiet as possible, out of respect to those CB'ers who intend operating with their microphone in the immediate vicinity of the generator. Zeus Singer Panadaptor Model PR -1 has an excellent 16 page book which describes the specific features of each of their' models, including power output available. We tion of the signal being heard on the CB rig. suggest that you obtain a copy of this book The tube shows a green base line with a for your club files or for your own personal vertical "spike" representing the signals on reference. It "s free; just write to Zeus. the various channels. Band Snooper. Next we have something This permits you to rapidly locate a clear called a "Panadaptor," a device known to channel or to "monitor" a number of chan- most CB'ers who did a stint in any of the nels at once. The device may also be used as military communications branches. The "Pan- a modulation analyzer, and as a signal adaptor" is a piece of gear which gives you strength indicator. a visual presentation of just about every It may be attached in a few seconds to any signal in your area on the entire 11 meter CB rig (or communications receiver) hav- band -it does this by means of a cathode ray ing an IF of 455 kc /s. tube. The face of the tube is calibrated to Price is $144.50 from The Singer Com- show 100 kc /s to each side of the center, pany, Metrics Division, 915 Pembroke St., an indica- Bridgeport, Conn. R and the center ofTELEX the tube shows FOR QUALITY The quality of Telex headsets has become well known to hams over the last twenty -five years. Here are three Telex headsets that deliver the kind of top grade performance that hams expect from Telex-

MAGNA -TWIN TELESET W ONOSET For absolute maximum intelli- Lightweight, economy version Feather -light at 1.2 oz.... Elim- gibility under difficult QRM con- of the famous Magna -Twin ... inates headset fatigue...Sound ditions ... Super- comfort foam High performance, shock -proof from replaceable driver is fed moisture - Magna -Twin drivers...Designed directly into your ears through cushions ... Rugged, arms Telex prooi magnetic drivers give especially for ham requirements. adjustable tone ... broad *.esponse, excellent sen- quality construction assures re- sitivity... Sturdy construction liability. of high irf,Pact plastic.

Write for descriptive literature today. TELEX /Acoustic Products COMMUNICAT /OAS ACCESSORIES Dept. 9L 3O54ExcelsiorBlvd .Minneapolisl6,Minn.

19 JANUARY, 1966

www.americanradiohistory.com NEW dei cts

Auto Stereo Tape- Cartridge Player The newly-formed Auto Sound Division of the Craig Panorama, Inc., is introducing a high -styled car -stereo unit, called the Craig C -502, with such exclusive combination features as solid -state two -channel stereo ampli- Fill in coupon for a FREE One Year Subscrip- fiers, dual- stereo playback heads, electronic tion to OLSON ELECTRONICS' Fantastic Value track Packed Catalog- Unheard of LOW, LOW PRICES selection, push -pull output, and new on Brand Name Speakers, Changers, Tubes, self- activating cartridge system operating on Tools, Stereo Amps, Tuners, CB, and other Val- ues. Credit plan available. auto battery. The unit is highly styled of steel NAME with a brushed -aluminum face plate. Sug- ADDRESS gested list is $119. An additional all- chrome CITY ZONE STATE Craig C-501 model will list for $99.50. Craig If you have a friend interested in electronics send is also offering a complete stereo cartridge his name and address for FREE a subscription also. library offering top Mercury, United Artists, Liberty, MGM and Paramount labels. A self - mailer music catalog is schedule for quarter- ly issue. (For further information please 436 S. Forge Street Akron, Ohio 44308 write to Auto Sound Division, Craig Pan- orama, Inc., Dept. AS) -1, So. La Cienega Solid -state Blvd., Los Angeles, Calif. 90016.) CB mate The best way to ring up more 10 -2s with the new solid -state transceivers is by using one of the new low - impedance Sonotone Ceramikes ®. They are designed specifically for all -transistor transceivers. Trans- mission is loud and clear, and Ceramikes are built to take abuse. Craig C -502 Automobile Stereo Get the low- impedance "CM- 3050" or the "CM- 3050M" with Magnetic Mount, today. Also Models Noise -Canceling "CM -30" and "CM- Mobile Carbon Microphone 30M" for tube trans- Recent studies on voice intelligibility in ceivers. Prices start communication systems operating in high at $15.75. Write for noise environments have led to some inter- Free catalog esting hardware developments. One such de- SAH -7. vice is Roanwell Corporation's new Model' RM -515 noise -canceling mobile carbon ¡iii - crophone. Canceling an average of 18 db of ambient noise, the RM -515 offers improved intelligibility over other SONOTONE available carbon audio products noise -canceling units by providing superior noise -cancellation. Human -engineered for Sonotone Corp., Electronic Applications Div., Elmsford, N. Y. secure and comfortable hand operation, it is 20 RADIO TV EXPERIMENTES

www.americanradiohistory.com housed in a high -impact, thermoplastic case. A soft -action press- to-talk DPST switch acti- vates the microphone. Mounting bracket is included. Technical specifications: Frequency Response, 300 to 3500 cps; Sensitivity, -17 db ref. 1 mw /nm`, (10 dynes/cm2), or +33 db ref. 1 my into 100 ohms load for 10 dynes/cm2, S.P.L.; Carbon Noise, less than 0.001 volts; Recommended Operating Cur- rent, 50 to 100 ma; Maximum intermittent Current, 250 ma; Cordage, four-conductor retractile cord (5 ft. extended), vinyl insulation and jacket; Mounting Arrangement, clip type mounting bracket that receives mount- New 96 -page book gives of microphone. (For more ing button on back step -by -step instructions for details write to Roanwell Corporation, Dept. R40T, 180 Varick Street, New York, N. Y. 10014) SIMPLE ELECTRONIC PROJECTS You Can Build NOWT How would you like to make a sun-powered radio, or a walkie-talkie, an intercom, a broadcast station, a burglar alarm a code transmitter, or any one of 50 exciting, easy -to -build projects? It's simple - the Semitronics way. Easy -to -build projects described in simple language with clear diagrams. No technical background needed - just pliers, screwdriver and soldering iron. All parts inexpensive, reusable for many projects. IDEAL FOR BEGINNERS OF ALL AGES With the new Semitronics handbook "Electronic Projects,' any student, beginner or hobbyist can have the ' fun and excitement of building electronic projects that work - even if you never worked with electronics before. Semitronics makes it simple, with this illustrated handbook, and easy -to -find parts, all available at low cost from your dealer's Semitronics Electronics Center. THE FUN WAY TO LEARN This educational science program provides an ex- introduction to electronics Model RM -515 Carbon Mike citing and fascinating Roanwell and the space age. Students will find the Semi - tronics program especially appealing, as they Tape Aids learn new facts in a practical, enjoyable way. Try your first project now - just for the fun of it. As part of their expanding activities in LOOK for the Semitronics Electronics ELECTRONIC Center at Your Local Dealer and high fidelity, Elpa Marketing PROJECTS audio _ OR SEND $2 for your Projects Book Industries, Inc. will distribute a complete - . (Includes postage and handling) line of tape splicing and editing products TO: known as EDITaII and EDltabs. Both prod- RT V- 12 ucts are manufactured by the Tall Company. Semftránfcs Corp. The EDITa/I is a patented tape splicing 265 Canal Street, New York, N. Y. 10013 be to any tape block that can easily fastened Enclosed is $ send me machine with or without the use of screws. t copies of the Semitron 50- Projects Book postpaid, owner of a tape machine to It enables any Name splice standard 'ia" tape, including small sec- impossible, profes- I Address tions hitherto considered lip sionally and accurately. City /State

21 JANUARY, 1966

www.americanradiohistory.com jibdrrefs

The patented EDltabs are used for splicing tape and, when used in conjunction with the EDITa11 editing block, results in spliced tape that is as flexible, as uniform and as sturdy as the original tape itself. The use of the EDITa1I and EDltabs eliminates the crackles and pops that so often accompany tape that has been improperly spliced. Possible damage to the tape machine is also eliminated. The new EDITa1I KP -2 editing kit contains an EDITa!I block for splicing and editing tape; 3 sheets of 10 each of EDItabs tape splices; a marking pencil; a specially treated demagnetized razor blade; together with complete instructions. The complete kit will retail for $3.50. Additional EDltabs are sold in a package containing 50 EDltabs for $1.50. The EDITaII Kits and EDltabs will flfMEN/ARY be distributed throughout the United States by Elpa. For any additional information Elpa Marketing Industries, Inc., Dept. 7R6, ELECTRONICS New Hyde Park, New York. There's no better way of becoming ac- quainted, and keeping up -to -date on the . exciting world that is electronics, than 50 EDitatis E I. if through the pages of TAPS TD T1NG and TAPE EDITING -srd SPUCtNG SYSTEM SPLICING SYSTEM ELEMENTARY ELECTRONICS

And now this highly informative and easy - O.sü?ii,u.µ. r to -read magazine is being published more frequently -every other month!

So don't take a chance of missing a single copy of ELEMENTARY ELECTRONICS. COMPLETE KIT

Subscribe today and save money! Only $4. w ' ($4.50 at the newsstand) rÁN't.V.si'

OatMWk! Pk 6TIKR& MAIL THE COUPON NOW Elpa EDltabs (left) 8c EDITaII (right) Elementary Electronics RTV764 505 Park Avenue New York, N. Y. 10022 Oscilloscope for Color TV Urgent! Please begin my subscription with the next A moderately priced oscilloscope that ful- issue. 1 year: $4; 2 years: $7; 3 years: $10. fills practically every service and test require- Payment enclosed $ Bill me ment is available from Allied Radio Corp. Name The new instrument, available both in kit (please print) form and factory -assembled, is the Knight - Address Kit 5" DC to 5.2 MC Wideband Oscillo- City scope, model KG -635. It can be used for Sttte Zip Code color TV as well as wideband testing. Its wide

22 RADIO -TV EXPERIMENTER

www.americanradiohistory.com range of application covers service shops, schools, laboratories, industrial production lines, and hobbyist and general use for high fidelity, amateur and CB equipment. It features Unique Dynamic Sync Limiter circuit that assures trace uniformity under any high sync level conditions; vertical attenuator marked directly in volts /inch; two regulated power supply potentials; Pull -Push On -Off /Focus Control -no need to reset focus; 1650-volt accelerating potential for sharp traces; polystyrene and mylar capacitors for sweep stability. Also, Automatic Astigmatism Correction for uniform focus regardless of trace position on screen; series /shunt peaking in amplifiers for overall widespread response; Pull - Push On- Off /Focus Control eliminates need for constantly resetting focus when turning unit on; 2 regulated power supply potentials; retrace blanking; and tapped primary on power transformer for optimum operation. Calibration controls are externally accessible through case. No test equipment required for calibration. Graticule has X and Y linear grids. Rugged black metal case. Highly tut uk legible markings on charcoal gray and silver front panel. Black knobs. V The Knight -Kit KG -635 is priced at $99.95 in kit form, $149.95 factory as- The do- it- yourselfer's sembled. This new instrument is listed in newest catalog

Here's your new catalog of quality electronic kits and assembled equipment ... your shopping guide for TV set kits, transistor radios, voltmeters, scopes, tube testers, ham gear, PA systems, and a host of other carefully engineered products. Every item in the Conar catalog is backed by a no- loopholes, money -back guarantee. It's not the biggest catalog, but once you shop its pages you'll agree it's among the best. For years of pleasurable performance, for fun and pride in assembly, mail the coupon. Discover why Conar, a division of National Radio Institute, is just about the fastest growing name in the kit eipm ent CkJÀIR business. MEMO. MAIL NOW!MIMI= NP5C CON AR 3939 Wisconsin Avenua, Washington, D.C. 20016

, new Please send me your catalog. ® , Nam ,

IIAddress ,

City State Z-code

Knight -kit KG -635 DC Oscilloscope 23 JANUARY, 1966

www.americanradiohistory.com "tThe meter is a marvelously sensitive NEW and accurate instrument," U. S. Camera products

Allied's 1966 catalog No. 250, available free from Allied Radio Corp., 100 N. Western, Chicago, Ill., 60680.

FM- Stereo Receiver A new all -in -one receiver is the Fisher 440 -T, a no- compromise highly reliable unit that bristles with engineering innovations and convenience features. Although only 163/4" wide, it incorporates an all- solid- state FM- multiplex tuner with automatic mono-stereo switching, a versatile stereo

$3695 IN KIT FORM Here is a precision instrument that meets the highest standards of any meter available today. The S &M A -3 uses the newest cadmium sulfide light cell to measure light levels from 0 to 10,000 foot lamberts at Fisher 440 -T 70-Watt Stereo Receiver ASA speeds of 3 to 25,000. It is successfully used with movie or still control -preamplifier, a time -division multi- cameras, microscope, telescope -as plex system, and a heavy -duty silicon -pow- well as densitometer. ered stereo amplifier. The tuner front -end has an exclusive four- The computer gives F stops from .7 gang all- solid -state design free of distortion to 90 and lists exposure time from and overload. It attains unusually high sensi- 1/15,000 sec. to 8 hours. 43° angle tivity and selectivity and can pull in the of acceptance, 4 range selection; weakest FM signals even under the poorest receiving conditions. The controls are logic- EV- EVS -LV settings. Large (41/2 ") ally grouped on the front panel and include illuminated meter, paper speed con- separate program and mode selector controls. trol knob for use with enlargers and 7tZ One unusual feature on the 5- position Mode/ now has a new battery test switch. ' 719 Tape Monitor Switch are the positions Tape L and Tape R. These permit playback of & MECHANICS - KIT DIVISION " each of the four tracks of a monophonic 505 Park Avenue / New York, N. Y. 10022 tape through both loudspeakers simul- RTV -764 taneously. Enclosed is $ Please send me the Supersen- sitive Darkroom Meter, as checked below. I understand In spite of its low price (under $330), that if I am not completely satisfied, I may return the the Fisher 440-T has many convenience meter within 10 days for a complete refund. features. They include a speaker selector No. A-3 No. A-3 switch, front -panel headphone jack, and high in kit form - $36.95 assembled -$41.95 A -3 Carrying Case -$5.00 and low level magnetic inputs to accommo- Add 10% for Canadian and foreign orders. date all types of magnetic cartridges. New York City residents add 4% for N.Y.C. sales tax.

NAMF (Please print) Tri -Band SSB /AM /CW Transceiver

ADDRESS A new three -band SSB /AM /CW Trans- ceiver for use in the 20 -, 40- and 80 -meter

CITY >ONF STATE amateur radio bands has been introduced by

24 RADIO -TV EXPERIMENTER

www.americanradiohistory.com EICO Electronic Instrument Co., Inc., 131- 01 39th Avenue, Flushing, New York 11352. Thinking of college and The new EICO 753 Tri -Band Transceiver may be used at fixed locations or as a mobile a space age career in station on a vehicle or boat, for manual push - to -talk or automatic voice controlled (VOX) electronics ? radio -telephone operating, or for radio- telegraph communication employing grid block keying. It has rigid construction com- pactness and superb styling. Assembly of

YOUR CAREER

Send for this booklet on ENGINEERING TECHNOLOGY EICO SSB /AM /CW Ham Transceiver AND ENGINEERING Learnt how you can prepare for a dynamic the kit version is made easy and fast by VFO career as an electrical or mechanical engi- and IF circuit boards, plus preassembled, neering technician or engineer in such exciting, growing fields as avionics, mis- crystal lattice filter. siles, reliability control, fluid mechanics, When transmitting, power input is 200 data processing, metallurgy, microelectron- watts PEP for SSB or AM, and 180 watts for ics, and advanced aerospace research. CW. Power output is rated at 110 watts PEP MSOE offers residence study programs for both SSB and AM, and 110 watts carrier leading to these degrees in engineering power for CW. The transmitter uses a pi net- technology and engineering: work to match into 40 -80 ohms. 2 years - Associate in Applied Science Receiver sensitivity is better than one 4 years - Bachelor of Science for 10 db signal -to -noise ratio. Also get facts about scholarships and fi- microvolt nancial aids, job placement and other Selectivity, provided by a crystal lattice band - student services, plus photographs of pass filter, is 2.7 Kc at 6 db. A product de- MSOE technical laboratories and tector is used for SSB reception and a triode student activities. For your copy, detector for AM. just mail the coupon - no obligation. The transceiver can be operated on any frequency in the 3490 -4010 Kc, 6990 -7310 Kc and 13,890 -14,410 Kc ranges. Frequency is selected with a single knob which has a 6:1 rapid band tuning ratio and a 30:1 vernier bandspread. An offset tuning control is also provided with which the receiver can be tuned over a 10 Kc /s range without alter- MSOE ing the transmitting frequency. Milwaukee School of Engineering Flat- topping is prevented by a high -level dynamic ALC (automatic level control) cir- Milwaukee School of Engineering with overmodulation, per- Dept. RTX -1265 1025 N. Milwaukee Street cuit, even extreme Milwaukee, Wisconsin 53201 mitting use of an external linear amplifier Please send the "Your Career" booklet. with the transceiver. Auxiliary contacts are I'm interested in provided on the transmit -receive relay for CI Electrical fields Mechanical fields control of a linear amplifier. Name Age In kit form it is priced at $179.95 and at Address -wired tested, less power $299.95 factory and City State ZIP supplies and speaker. MS-227

JANUARY, 1966 25

www.americanradiohistory.com NEW The famous /7%lß q/ products 1101 TESTER Model TUBE Stereo Headset With Built -in Woofer & Tweeter NOW in a wire - A new professional stereophone, the Superex Model ST -PRO, duplicates your it- yourself hi -fi's speaker system as no other headset has done before. This stereo headset has a KIT! woofer -tweeter arrangement with built in

Superex ST -PRO Stereo Headset cross -over networks in each acoustic cham- Model 1101K ... Kit ber earpiece. The low and mid range frequencies are reproduced by a dynamic only $3495 element; the high frequencies by a ceramic element. Foam filled ear cushions, which Model 1101 $4995 are replaceable, are employed with a fully ...Wired adjustable vinyl covered spring steel head- band. A four conductor cord terminated in Illustrated step -by -step instructions make (Continued on page 29) the Model 1101 extremely easy to build , ,, 1,,,,,,,,,,,1111. , 11111111111111111111111.111111111111111111111111111111111111111,,, ,,,,,,,,,,, ,,, Nothing has been spared, engineering -wise or production-wise in making the Model 1101 your best tube tester buy. Tests more tubes for dynamic cathode emission, shorts, grid leakage and gas than many testers costing hundreds of dollars. Tests new Decals, Magnavols, 7 -pin Nuvis- tors, Novars, Compactrons, 10 -pin types, battery type, auto radio hybrid tubes, foreign and hi -fi tubes and industrial types. Employs brilliant 2- point test principle - greatest safeguard against obsolescence. Modern airplane luggage design case...weighs only 4 lbs. Also tests all popular picture tubes Write for complete catalog of kits and wired instruments -and name of nearest distributor

f//L&ZV ELECTRONICS CORP. "'Just in time-almost finished 315 Roslyn Road, Mineola, N.Y. 11501 with my new solid-state amplifier." Export: Morhan Exporting, 458 Broadway, N.Y.C. 10013 11111111 3111111111111111 411111 1111 11111111/11 11111111111111111 1111111111111111111111111111111111111111 11 111111111111111111111111111111111111 11111111111111111111111 0

26 RADIO -TV EXPERIMENTER

www.americanradiohistory.com Inh

TRANSIf LASH by Jim dSJKX

super-sers tivt, transistor Location of .hem e deterior - ttorting lo -he 2N3C7 collector; swiching aircui- provides the by passing the bas' and erl.kr 311 other leads can rare air bare. punch to fir-; f ashtulbs up to a terminals th ocgt existing ps- The capacito- and rr=is or are quarter -hile from the camera tcrations, and sii the tracs s- Haunted oy pass ng tt air leads wit- the Transilash Aid though tcr itself as a Hac ng tear o-z' e hrough aparopria:e -olas as res_Its are spectacular, the cir- to the extra roda; shown in :hE photo; an: banding cuit itself is ex:remety simple. The coUecto- cf he 211: s :he lead wires croer t gt ly Make Orl, a batte-y, a capacitor, a re- electrically conectad to its paso, 311 connection; ties, and solder. sistor, aid two transistors are so that the two hunting » s To save both) spa and uses. serve as co lector conneäem. Honey, transistor sccl.ets were

'Jonst-ucfion. A _ 7/a x 2 inch Pu a solder lu; beieath CUE of omitted. Th s means -hat you piece of pe-fora:ed Bakelite or °te nuts for maki-r; the ccanc nust use heat s of grip the phenlolic board forms the chassis lots. ransistcr L,ads bets -net the of tie T-ansiflash. A thin piece With the boa c drillEc 3rd oint arc he tarsi! or with of plywood, plain plastie, or even 'he 2N307 it alarm mocni te ong -nosy pl es while soldering, hey drafting cardboard would 2N104 by passtri its leac.s o prevert teat Jana. When also serve. trough three perorations and soldering the 2N4)4 emitter lead though all Farts are mounted ou ling the t-arsisir up suily. o the 2N307 tase, ;rip the

by passing the r lead; through 3e sure hat ro lead surs ' o ?N307 base terminal T-e 2N404 periorations in the board, the Jr metal case et he trareis ar emitter lead is lorg enough for 2f11)7 power t ansistor requires r this process. safety it yoc wo-< rapidly.

two extra mount ng holes. They The em tter of the 2'11`4 For a 1 ¡cints,, E. :71/2 -watt are a/a inch in diameter, to pass m3,st be insu at?d y th plastic or pencil -type i-cn with sral tip is 4 -3> by % -i-Ich machine screws. :anbric tub n -c preven: :s -ecommended; it is he enough

SIMPLE TRANSISTOR :IRCUIT POPS OFF U -T SOURCES AT 1/< MILE

Jnas^s, nY. 1966 27

www.americanradiohistory.com LEADS TO FLASH BULB THE TRANSIFLASH

to allow a quick job, yet small enough to handle easily. Soldering guns can damage transistors. The battery is both connected to the circuit and held in place by short stiff wires soldered first to the battery terminals and then to the capacitor leads. Since average QI 02 RI CI BI life of the battery is over two years, no bat- ,LEADS TO CAMERA tery holder was felt to be necessary. Leaving SHUTTER the battery off the board makes eventual replacement easier. The handful of electronic parts that make With all connections made according to up the Transiflash fit neatly on a 17/8 x the drawings and the photos, connect flexible 2 -inch phenolic board as shown above. Dry wires to the shutter and bulb terminals and cell battery (below) juts past board and you're ready to try it out. Keep in mind that is held in place by its leads. Entire unit this is a power unit rather than a complete can be potted with only the battery outside. flashgun; the flashbulb wires can either be soldered to the socket of your present flashgun, or run to a connector which fits the plug of your extension flash units. Of course, final housing and possible MALLORY mounting of the Transiflash depends on your 1131s 22K Yt1trE NUM 213 particular camera, how you plan to use it, BATTERY and whether you just want a working studio NHQTOru3x unit or a chic addition to your equipment. A TNAN31fTOR NACHO box outfitted with small aluminum chassis nctrROauc jacks for the shutter and flashbulb leads tNt7N4M3NT3 makes a neat package; neater yet when covered with leather or a simulated leather material to match your camera case. (Continued on page 105)

TO CAMERA SHUTTER PARTS LIST Q2 B1- 22.5 -volt battery (Mallory M -215 or 2N404 equiv.) 1 CI C1- 150mfd., 50vdc midget electrolytic ca- 22.5 I5+ pacitor = QI 150 MF Q1 -2N307 medium -speed computer VDC - switch- 0VDC 2N307 ing transistor + RI Q2 -2N404 medium -speed computer switching 2200n transistor TO FLASH BULB R1- 2200 -ohm, 1 -watt resistor 1- perforated phenolic board, 17/8 x 2 inches 1- Chassis box (see text) Misc.- Solder lugs; hookup wire; spaghetti; hardware; appropriate plugs, lacks and leads (see text); solder, etc.

Estimated cost: $4.00 Estimated construction time: 11/2 hours

Q2-2N404 QI- 2N307 Schematic diagram shows that 01 carries TRANSISTOR LEADS all of the current through its collector -

( BOTTOM VIEW) emitter circuit and 02 serves to fire 01.

28 RADIO -TV EXPERIMENTER

www.americanradiohistory.com a standard stereo plug is used. Other termi- nations available free of charge are 2 RCA phone tips, 2 PL -55 phone plugs, 2 mini - ear cushion SALE: plugs. A pair of washable knit 1 DISC CONDENSERS 30 for E1 60 for 1.01 covers are also supplied at no extra cost. PRECISION RESISTORS 30 for 51 60 for 1.01 a 10-WATT ZENER 30V .. ...1 for E1- 2 for 1.01 Various accessories offered include boom 25 AMP RECTIFIERS .50V,.2 for $1 4 for 1.01 mike attachment, 10 ft. retractable cord and SWITCHING TRANS'TRS-15 for $1 30 for 1.01 "MICRO" ZENERS 6- volt .6 for Ell 12 for 1.01 alternate impedances of 600, 2K, 15K, 50K GERMANIUM DIODES 25 for $1 50 for 1.01 is 18 to 20- WATT TRANSISTORS 3 for $1 6 for 1.01 ohms. The frequency response TRANSISTORS 30 for EL 60 for 1.01 22,000 cps. impedance 4 -16 ohms, nominal 115/60c TO 6.3A, 3A )(MR 1 for Si 2 for 1.01 2P41613 100MC TRANS . , .1 for $1 2 for 1.01 power is 30 milliwatts and maximum power 40 -WATT TRANSISTORS 2 for $1 4 for 1.01 price of the Superex SOLAR "SUN" CELLS 4 for El $ for 1.01 is 2 watts. The net 200MC 2N705's TRANS'TRS. 2 for$l 4 for 1.01 ST-PRO is $50.00. Catalog is available upon 20W NPN SIL. 2N1647 1 for E1 2 for 1.01 CLIP -IN DIODES SILICON 15 for E1 30 for 1.01 request. Just write to Superex Electronics EPDXY RECTIFIERS .. 25 for E1 50 for 1.01 Place, IGNITION SWTG TRANS'TRS 1 for $1 2 for 1.01 Corp., Dept. RV6, 4 -6 Radford 2N706 500MW, 300MC NPN2 for E1 4 for 1.01

Yonkers, N. Y. 4 2N170 TRANSISTORS, by GE., npn for gen1 rf 1 y S 2N107 TRANS'1RS, by GE, pnp, pop. audio pak $1 Ng ¡--1 3 INFRA -RED DETECTORS, with leach $1 gg a Recorder Controls $25 SURPRISE PAK: transistors, root, diodes, etc.$l Q Level Automatically 75 HALF WATTERS, asst Inc!: A.B., 5% too! $1 ..J 10 POPULAR CK722 TRANSISTORS pop, no. teat $1 ,,,R Automatic Level Control (ALC) and 60 TUBULAR CONDENSERS, to .5mf, to 1Kv, east $1 ..4 60 CERAMIC CONDENSERS. discs, npo's. to .05 ST completely solid -state electronics feature the 15 TRANSISTORS, CK722,2N35,107 $1 Q 15 NPN TRANSISTORS, 2N35, 170, 440 $1 d Vista 525 tape recorder from Craig Pano- PNP rama, Inc., of Los Angeles. Automatically 3- TRANSISTOR O TRANSISTORS maintained recording level and 4 hour re- AMPLIFIER stM 9 cording capacity, make this AC- operated, e Only 3 a2rircit'uu'" 100 for $2 Printed Power, Audio, RF, unletled Wired $1.00

TERMS. Add postage avg. wt. eel pelt 1 Ib. pc .O. BOX 942 X I POLY PAKS, LYNNFIFLD, MASS. 1ACATALOG

NOWWRIWI FOR M c G E E' S 1966 CATALOG SENT FREE 1001 BARGAINS IN SPEAKERS -PARTS- TUBES -HIGH FIDELITY COMPONENTS- RECORD CHANGERS - TAPE RECORDERS -KITS- EVERYTHING IN ELECTRONICS ry r McGEE RADIO CO., I 1907 McGee St. Kansas City 8, Missouri SEND 1966 McGEE CATALOG NAME ADDRESS CITY ZONE. ..STATE Craig Panorama Vita 525 Recorder 6- transistor unit ideal to record meetings in SPECIAL! ! large conference rooms, auditoriums, etc. No ELECTRONIC to 'krill you and please need to monitor volume, regardless of dis- GIANT SURPRISE PACKAGE you with all sorts of parts for projects! 20 lbs. of tance of speaker from microphone. Speed Condensers, resistors, chokes, sockets, chassis, etc. equalization control at 1 -7/s and 3 -3/4 ips etc. including: Plus Value! a Brand New POWER standard speeds, with capstan drive. Design TRANSFORMER SPECIAL $4.88 for features include jam -proof single -lever con- Send check or money order, include add tional postage to your zone, excess refunded. Sorry, no COD's. trol, AC bias record, fast forward, PM -FREE dynamic microphone record level and power SEND FOR NEW 1966 BARGAIN BULLETIN indicator. Unit equipped with inputs for CB Dealers: for price list on CB Supplies. radio and AC power, outputs Write on your letterhead microphone, COMPANY for earphone and external speaker. Dimen- GROVE ELECTRONIC SUPPLY 4109 W. Belmont Ave. Telephone I -1 11 -3A4" by 9" and weight sions are 5 /2" by Chicago, III. 60641 (Area 312) 283.6160 (Continued on page 31)

29 JANUARY, 1966

www.americanradiohistory.com crumb tool

roolaces

solderìßo iron

Now your solderless connections, wire stripping and cutting, and bolt cutting are one -squeeze, one -tool operations!

WIRE STRIPPER This new all- purpose tool is truly a Super Use correct stripping notch -close tool and Champ when it comes to your construction pull wire removing insulation. projects. Manufactured by American Pam - cor, Inc., the Super Champ is a boon to wire handling; it strips the insulation, crimps on a solderless connector, and you just make the connection -simple as one, two, three. Another feature is the bolt shear operation which allows you to trim your hardware down to size with a squeeze of the handle. WIRE BUTTER If you've ever developed a short in your 2 Severs wire easily and cleanly. home -brew equipment and traced it to a wire grounding to an oversized bolt on your chassis, you know how handy it would be to have a quick and easy way to cut junk box hardware down to size. The diagrams, 1 through 5, at the right, illustrate the uses and technique of using the utility tool, which has contoured handles that are fully insulated with high- impact 3 ELECTRICAL CRIMP plastic. Use proper notch and close tool completely. The Super Champ tool, as well as the solderless terminals are available from several retail sources: Sears Roebuck & Co., Mont- gomery Ward, Penney's, and W. T. Grant Company.

MECHANICAL CRIMP 4 Use "INS" notch to crimp insulation.

5 BOLT CUTTER Insert bolt in threaded side of tool, bolt sizes are marked. Turn bolt to desired length -allow 1/8" for tool thickness. Squeeze handles Electrical crimp is made on 12 -10 AWG using together quickly. Cuts bolt clean with no marked notch and closing tool completely. thread damage or burrs.

30 RADIO -TV EXPERIMENTER

www.americanradiohistory.com "TAB ", SILICON 750MÁ* DIODES Tested! *NEWEST TYPE.' LOW LEAKAGE GW.' Piv /Rm Piv /Rms Piv, Rms Piv /Rm 50/35 100/70 200/140 300/210 . 14 Nproducts _ .05 .09 .12 Piv /Rms Piv /Rms - Pivv -Rms - Piv /Rm 400/280 500/350 600/420 7002/790 from page 29 .15 .19 .23 . Continued - /Rois /Rms Piv Piv/Rmé Piv Piv 1000/700 1100/770 800/560 900/630 Query 8 Accessories in- 33 4S .35 only lbs. Price: $69.95. ALL TESTS AC í0l DC fa FWD & LOAD! for $10 I and patchcord. For fur- 1700Piv /1200Rms (,il 750Ma $1.20 @, 10 clude microphone 1 I me IlOOPiv /770Rms 750 . 16 for $11 ther information, please write Dept. R212, SILICON POWER DIODES STUDS & P.F. ** D.C. SO Piv 100 Piv 150 Piv 200 Piv Craig Panorama, Inc., 3412 So. La Cienega Amps 35 Rms 70 Rms 105 Rms 140 Rms 3 .08 .14 .17 .24 12 .30 .55 .70 .85 Blvd., Los Angeles, Calif. 90016. 180 .20 .30 .50 .75 35 .70 2.0$ 1.35 1.50 100 1.65 1.00 2.50 3.15 Solid -State 10 -Meter 240 3.75 4.75 5.75 8.75 - D.C. 300Piv - 40Ô Piv 500Pl 600'Piv - Amps 210 Rms 280 Rms 350 Rms 420 Rms Ham Band Converter 3 .29 .30 0 .48 12 1,00 1.3$ 1.45 1.70 self- amateur 1800 1.00 1.50 Query Query A new solid state, contained 35 2.15 2.45 2.75 3.33 100 3.75 4.60 5.50 8.00 ten -meter band converter for use with stand- 240 11.70 19.80 27.90 Query Battery Charger 6 6 12 V Charges up to 5 Amp with Circuit ard automobile radios has been introduced Breaker $8 @, 2 for $15. D.C. Power Supply 115v /60 to 800 Cys. Output 330 & Tap by Instrument Devices Corporation. The 165V up to 150Ma $5 @, 2 for $9. 3000Piv /2100Rms @ 200Ma $1.80 @, 8 for $10. the Model SS -Ten con- 6000Piv /4200Rms @ 200Ma $4 @, 4 for $15. new unit, designated 12000Piv/8400Rms @ 200Ma $10 @, 3 for $25. verter, features solderless, instant installa- 5U4 Silicon Tube Repl. $1.90 @, 6 for $11 "TAB" * SCR's * TRANSISTORS * DIODESIII tion on any automobile radio and offers im- Full Leads Factory Tested ôd Girl! U.S.A. Mfg- PNP /XiPower /15 Amp Round T036 Pckgl 20441, mediate reception of all ten meter band 442, 277, 278, D5501 up to 50 volts VCBO $1.25 @. 5 for $S TN278, 443, 174 up to 80v @ 2 for $5 phone stations. A single on -off switch in the PNP Diamond /3A- 2,155, 156. 235. 242, 254, 255. 256, 257, 301, 351,035 @, 4 for $1 unit allows the user to switch his radio back PNP /Signal up to 350Mw TOS 025 @, 6 for $1 6 NPN /Signal IF, RF, OSC, T05, 03,5, GEE @ for $1 PNP 2N671/300Mw 035 @ 4 for $1 to normal broadcast bands instantly. The 3 for $1 6 for $5 Pow20671/1r NX at / FinnedtSinks 100 Sq $1 @ converter permits tuning through the radio STABISTOR Diodes Fwd Regulators...... 1 watt 5 for 51 Zener Diodes up to One Watt 6 to 200v 070 @ 3 for $2 amateur ten -meter phone band (28.400 to Zener Diodes Ten Watt 6 ta 150v 51.45 @ 4 for 55 Sil Presfit 18A up to 100 Piv 4 for $1 3 for $1 29.450 mc). Micro or MuSwitch CSD 35 Amp /AC -DC I "SCR" SILICON CONTROLLED RECTIFIERSI PRV 7A 16A 25A PRV 7A 16A 25A 25 .30 .50 .85 250 1.85 2.25 2.60 50 .50 .75 1.00 300 2.00 2.45 2.80 100 .90 1.35 1.60 400 2.50 2.90 3.35 150 1.00 1.65 2.00 500 3.25 3.60 4.00 200 1.30 1.90 2.30 600 3.50 4.35 4.60 "Volt -Tab" 600 watt "SCR" speedd control 115 VAC $4.50 @ . 2 for $8.00 TERMS: Money Back Guarantee'. Our 20th $2 Min. order F.O.B. N.Y.C. Add shpg chargescear. or for L.O.D. 25% One. Prices "TAB" shown subject to change. 111 -J -6 Liberty St., N. Y. 6, N. Y. SEND 250 Phone: Rbntor 2 -6245 for CATALOG

TRANSISTORIZED CONVERTER 26 -200 MC Receive signals from 26 to 200 MC (1 MC radio, Instrument Devices SS -Ten Converter spread), on broadcast band using car crystal control or tuneable (1 MC spread). Its technical features include a printed KIT $11.00 pp. WIRED $20.00 pp. circuit, three American -made transistors, RF WEBBER LABS 40-B MORRIS ST. LYNN, MASS. stage, mixer and a crystal -controlled oscillator. Power requirements are 9 volts at THOUSANDS OF BARGAINS battery. Broad- ELECTRONIC 3 ma. from a self contained TOP VALUES IN cast band image rejection is better than Modules, Speakers, Stereo, HI -FI, x 2 -1/4 in. Transistors, 80 db. The unit is 5 in. x 2 -1/4 in. Photo Cells and thousands of other Electronic Parts. and weighs only 6 ounces. It has a baked Send for FREE Catalogue and may be kept either in the enamel finish ELECTRONIC DISTRIBUTORS INC. automobile glove compartment or attached under the instrument panel. It comes com- EDIEDI plete with battery, instructions and technical Dept. TA -2, 4900 Elston specifications, and is available from Instru- Chicago, III. 60630 CI RUSH CATALOGUE ment Devices Corporation, Dept. 7T6, P. O. Name Box 248, Huntington, L. I., New York for Address City $22.95 postpaid. State Zip Code (Continued on page 33)

31 JANUARY, 1966

www.americanradiohistory.com The radio experimenter who likes to cobble tip a bit of home-brew equipment now and then soon dis- covers that a calibrating vernier can kick the price of a modest job well above his budget's tolerance level. So here's a readable, easy -to-assemble dial that can be tossed $7 together in less than an hour and for practically nothing. The plate that frames and holds the dial is cut from CALIBRATION stiff aluminum flashing or any scrap .020 sheet metal. The dimensions include a bend allowance so that a 3x5 -inch filing card will slip in easily behind the frame. DIAL FOR Drill a N3-inch hole for the control shaft. Spot and drill the corner mounting holes for the four 832x3/a -inch mounting bolts. Bend up the side and bottom edges by pinching them in a vise and bending the plate 90 °. Continue bend- 15¢! ing using a scrap of 1/32 -inch phenolic board inserted under the edges to preserve clearance for the card. A 3x5 -inch card has space for four calibration arcs about 3/a -inch wide. Use a compass and India ink to draw these arcs from a base line that cuts the center of the shaft hole. Lop off the corners of the card so it clears the bottom bolt holes, then slot it to drop over the shaft. The pointer is 1/32 -inch clear plastic. Cut it to shape, drill the hole for the shaft and scratch a line down the middle. Rub the scratch with a China marking pencil and wipe off the excess to produce a "lubber line." Drill two 1/32 -inch holes through the pointer midway between each pair of scales. Cement the pointer to the back of a 3/a- or 1 -inch set -screw knob. A thin plastic A piece of scrap friction washer can be used between pointer and card. With the pointer dialed to a particular frequency, prick aluminum and a 3x5 the card through the hole next to the appropriate scale, filing card are then swing it out of the way and write in the figures. A grounding lug should go under one of the mounting the no -cost materials nuts on the back. This may be needed if the set is in- required for this stalled on an insulated panel where it is necessary to calibrating dial ground the dial plate to the chassis to prevent detuning through hand- capacity effect. -Roy Clough, Jr.

32 RADIO -TV EXPERIMENTER

www.americanradiohistory.com NEW IMPROVE YOUR COLOR TV IMPROVE COLOR TV with easy-to-use Picture Purifier degaussing coil. Eliminates fuzziness in picture caused by magnetism in tube and chassis. Maintain new set performance. Bet- ter than automatic degaussing." COLOR SERV'S Picture Purifier is 20% stronger than units costing dollars more. Pushbutton oper- Continued from page 31 ated. Furnished complete with simple instructions & storage hook. UNCONDITIONAL MONEY BACK GUARANTEE. Clip coupon and mall today for special MAIL ORDER DISCOUNT PRICE OF: 23- Channel CB Rig Mail Check or Money Order POST- COLOR -SERV CO. *al $7 98 PAID BOX 555, RICHARDSON, TEX. For Land or Mobile Stations Please sea my Picture Purifier by return mall. A new 23- channel crystal -controlled CB Name Address transceiver for base or mobile operation is City State now available from Lafayette Radio. The rig (Model HB -4'-4) is a deluxe 5 -watt dual - You Should See conversion transceiver incorporating an ad- The New 100 Page vanced frequency- synthesis circuit for 23- channel crystal -control with all crystals supplied. Zener diode full -wave range -boost 1966 circuit increases the average depth of HI -FI modulation during transmission. The HB- 444 uses 13 tubes, 2 transistors and 8 BUYERS' diodes including low noise nuvistor front end GUIDE! offering 0.3 AV sensitivity and excellent adjacent channel rejection. Receiver selec- 'rates' equipment; takes the guess- tivity, 8 kc. at 31 db down. Other HB -444 Actually sale at your features include: large combination "S" and ing out of hi -fi buying. Now on publisher and relative power output meter, 100 mw and newsstand. $1.25 -or write the add 25c for postage and handling. 5 -watt power input switch, variable ANL and squelch, crystal delta tune, -± 2 kc.; and HI -FI BUYERS' GUIDE PA switch with front panel variable volume 505 Park Avenue /New York, N.Y. 10022

WIRELESS "MIKE" TALKS TO ALL RADIOS Now YOU can TALK-SING or PLAY over the radio with this NEW WIRELESS MIKE. Noconnectiona of any kind -Bends by radio ve.. Just touch button and talk while sitting. w lki g. riding. etc. Teets show reception o all nearby car andn house radios. Transistor powered with flashlite battery. No license or permit required (FCC OA certified) Guaranteed to work -1 year warranty -Should last for years. °n Gk M.o. ana par postman $7 M Send Only ;200 CODt°° poeread o Bend fFr EE delivery. Sent complete-ready rte peu FREE x Special Ion` distenee antennas Given ST der from hi°S. NOW. Available only br. WESTERN RADIO Dept. WRE -11, Kearney, R

have you seen the new 1966 edition of photography Lafayette HB -444 CB Transceiver

control. Built -in 117 -volt AC and transistor- buyers'guide ized 12 -volt DC power supply for mobile It takes the guessing out of operation with low battery drain. Has sock- photographic buying. Actually et for addition of Lafayette Priva -Com the best equipment selective call unit. Includes deluxe mobile recommends mounting bracket, cables and rugged ceramic for you to buy. 96 pages; your push -to -talk microphone. Handsome extru- one complete source. sion panel has all control dials illuminated. ON SALE AT YOUR FAVORITE Size: 12" wide x 5" high x 10" deep. Im- ported to Lafayette's specifications. Priced NEWSSTAND, NOVEMBER 9 at $179.95, the HB -444 can be had via the Or send $1.00 plus 25 for postage and mail by using Stock No. 99- 3059WX in handling t o PHOTOGRAPHIC your order. For more information, write to BUYERS' GUIDE, 505 Park Avenue, Lafayette Radio, Dept. CP6, 111 Jericho N. Y. 10022 Turnpike, Syosset, L. I., New York.

JANUARY, 1966 33

www.americanradiohistory.com BC -221 ASK ME Can I use a military surplus BC -221 frequency meter for measuring citizens band another frequencies? -F. L., Montclair, N. J.

The range of the BC-221 extends up to 20 me which is not high enough and its accuracy is not as great as required by the FCC. It's a fine instrument for other purposes, however.

From Little Arcs Come Big Shocks There is a loud hum and the voices are By Leo G. Sands muffled until 1 remove the ground wire from my short wave receiver. When 1 hook up the ground wire, there is an arc. What is the RADIO -TV EXPERIMENTER brings the know - trouble? how of electronics experts to its readers. If -J. L. D., Washington, D. C. you have any questions to ask of this reader - service column, just type it on the back of a If your set has no power transformer, it .0 postal card and send it to "Ask Me An- probably should not be grounded. On the other," RADIO -TV EXPERIMENTER, 505 Park other hand, if it does have a power trans- Avenue, New York, New York 10022. The former, the primary winding of the trans- experts will try to answer your questions in former may be grounded to the core, in the available space in upcoming issues. which case the transformer should be re- Sorry, the experts will be unable to answer placed. Or, if the set has line filter capacitors your questions by mail. in it, as shown in the diagram, one of the capacitors may be defective and should be replaced. Take an ohmmeter and measure the resistance between one of the prongs of the set's power plug (switch on, but plug out Loop It. of socket) and the chassis or grounded termi- I have a 12- transistor radio and am having nal. You should get an open circuit indi- selectivity problems. A station on 1370 kc, cation. less than a mile away covers the dial from 1300 to 1400 kc, making it difficult for me to receive stations on 1340 kc and 1390 kc which are about 20 miles away. What can POWER I do? PRIMARY TRANSFORMER -V. M., Pottstown, Pa. CI C2

The lack of selectivity is apparently in- CHASSIS herent in the design of your receiver. How- GROUND ever, you should be able to improve matters SWITCH by properly orienting the receiver's loop antenna. If the loop is on top of the set it is usually designed so it can be rotated. If it is inside the set, its directional characteristics can be adjusted by rotating the entire set. Tune the set to the interfering station and Class A CB Afoot then rotate the loop or the entire set until Where can I get a walkie-talkie for the the signal is weakest. This is a fairly narrow Class-A, 450 -740 me citizens band? arc, known as the "null ". Then tune in one -R. J. H., Seattle, Wash. of the desired stations. If the interfering station is not in exactly the same direction Motorola (4515 W. Augusta Blvd., Chi- as the desired station, there should be a big cago, Ill. 60651) has recently introduced an improvement. (Continued on page 40)

34 RADIO -TV EXPERIMENTER

www.americanradiohistory.com 'Round The World Cruise Only $159.95

DEPARTURE TIME: 10 Hours After Opening The Carton

Travel Anywhere In The World, First -Class, On Longwave, Standard AM, FM, and 7 Shortwave Bands with this New Heathkit All- Transistor Portable listening Tour The Voice Capitols Of The World. Your round - control; and a continuous Tone Control for trip ticket to unsurpassed global listening is always as you like it. ready when you own this superb new Heathkit 10- Big 4" x 6" Speaker, plus earphone for private listening. Seven Bands tune 2 -22.5 me Band Portable Radio. Battery Power. Uses 6 "D" size and amateur stations. Longwave Inexpensive, Flashlight shortwave, marine the radio, plus 1 "C" battery for kc tunes aircraft and marine stations. FM Band, batteries to operate 150 -400 the dial light (batteries not included). Also operates on 88 -108 me -full coverage -full fidelity. Standard AM 117 VAC with the optional converter /charger available. band 550 -1600 kc. All with a sharpness of tuning that permits receiving stations you've never heard before. Deluxe Styling Matches Its Deluxe Performance. Jet aluminum front and back panels con- Factory-Built And Aligned black extruded 16 Transistors, 6 Diodes, 44 trast with luxurious chrome -plated, die-cast end pieces cool, instant operation, superior per- RF Circuits assure to present a rugged, handsome unit you'll be proud to formance, long life, and easy assembly. Two separate front and back panels open and into (the take anywhere. Hinged AM and FM tuners are ready to drop place thanks to special magnetic edges ... no the same components used close easily FM tuner and IF strip are snaps or latches. Inside the front panel FM Stereo equipment). cumbersome in deluxe Heathkit you'll find a hard -bound "listener's guide" book con- Two Built -In Antennas ... one in carrying handle for taining frequencies of worldwide Shortwave and U.S. AM, and 5' telescoping whip for FM and Shortwave. FM stations plus a special map for easy conversion of snugly in its own special Convenient, Versatile Controls. Like the Battery-Saver world time zones. It travels Switch that reduces power to 150 milliwatts for normal slot in the front panel. indoor listening (cuts battery drain as much as 35 %), Build It In 10 Hours Or Less! Since the two tuners and or boosts power to 500 milliwatts for strong, outdoor all R.F. circuits are preassembled and factory-aligned, reception. The handsome rotating turret dial scale is you merely mount this entire section on the chassis and easy directly driven by a 10- position selector, permits wire 3 small circuit boards. The lucid Heathkit Con- viewing of any single band (a log scale is provided for struction Manual and thoughtful design make it easy re-locating unknown stations). There's a battery saving to complete without special tools or instruments. nighttime use; Automatic Fre- Dial Light switch for Now use the cou- Control with on-off switch for drift -free, accu- Send For Your World Tour Ticket ... quency new Heathkit 10 -Band Portable. rately tuned FM; a big, 81/2 revolution Tuning knob pon below to order your on- off -volume KIT GR -43, 17 lbs 95 easily separates stations; a combination 4:12=1::= Dept. 19 -12 Catalog HEATH COMPANY, FREE! 1966 Heathkit Benton Harbor. Michigan 49023

many in full send GR -43 portable. 108 pages ... Enclosed is S plus shipping. Please color ... describe this and Please send FREE Heath kit Catalog. over 250 other easy -to- Name build Heathkits. Save up to Address 50 %. Mail coupon for your State FREE copy. City G%-113Ri Prices & specifications subject to change without notice.

35 JANUARY, 1966

www.americanradiohistory.com Look What's. NEW KITS New 23- Channel, 5 -Watt Transistor CB Transceiver 23 channel transmit & receive capability. All- transistor circuit for instant opera- Kit tion, low battery drain ... only .75 A GW -14 transmit, .12 A receive. Only 2'/s" H x 7" W x 101/2" D ... ideal for car, boat, $8995 etc. Ifz uy sensitivity for 10 db signal plus noise to noise ratio. Front -panel "S" meter, adjustable squelch, automatic (Assembled GWW-14, noise limiter, built-in speaker, ceramic $124.95) PIT mike, charcoal gray aluminum cabinet. 8 lbs. Kit GWA -14 -1, AC Power Supply, ... $14.95.

New Transistor FM Stereo Tuner . . . Build In 6 Hours! World's easiest to build stereo /hi -fi kit . takes 6 hours or less. 14- transistor, 4 -diode circuit for cool instant operation, Kit Al -14 natural transistor sound. Phase control assures best stereo performance. 4-stage $4995 IF for high sensitivity. Filtered outputs for direct stereo recording. Automatic (less cabinet) stereo indicator light, preassembled & aligned "front-end." Install in a wall or either Heath cabinet, (walnut $7.95), (metal $3.50). 6 lbs.

New Deluxe Shortwave Radio Compare it to sets costing $150 and more! 5 bands cover 200-400 kc, AM, and 2 -30 mc. Tuned RF stage, crystal Kit GR -54 filter for greater selectivity, 2 detectors for AM and SSB, tuning meter, band- $8495 spread tuning, code practice monitor, automatic noise limiter, automatic volume control, antenna trimmer, built -in 4" x 6" speaker, headphone jack, gray metal cabinet, and free SWL antenna. Assemble in 15 hours. 25 lbs.

New 6-Meter SSB Ham Transceiver Full SSB -CW transceive operation on 6 meters. 180 watts PEP SSB -150 watts CW. Operates fixed or mobile; PTT and Kit SB -110 VOX, Switch selection of upper side - band, lower sideband, and CW. Covers 50 -52 mc with crystals supplied, total coverage 49.5 -54 mc. Famous Heath SB $32000 series Linear Master Oscillator for true linear tuning. Built -in 100 kc calibrator and antenna switching. Accessory mobile mount, SBA -100 -1... $14.95. 23 lbs.

36 RADIO -TV EXPERIMENTER

www.americanradiohistory.com Q Ñ

HEATHKIT 1966

ilr.260

EXPLORE The Exciting World Of Electronic Kits With This New FREE U 1966 HEATHKIT ®Catalog! Heathkit ... world's largest electronic kit line- now bigger and better than ever!

bigger selection - ox.er 250 kits! MAIL greater savings - up to 50 %! TODAY r unmatched quality!

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HEATHKIT ®CATALOG - truly the finest selection and savings ever offered kit builders!

STEREO /HI -FI EQUIPMENT... Changers, tuners, amplifiers and speakers - tube type or all -transistor - mix or match for the finest in stereo listening at savings of up to 50%! FOR THE ENTIRE FAMILY ... Color TV, B & W TV, AM FM Short- wave portable and table model radios, intercoms, garage door opener, citizen's band radios, electronic organs, automotive equipment at big kit savings. HAM RADIO EQUIPMENT ... Choose from a complete selection of transmitters, receivers and accessories recognized by hams the world over for quality. ELECTRONIC TEST EQUIP- MENT ... For work or workshop, engineers & technicians rely on quality- design, economical Heathkit test gear. MARINE GEAR ... Direction finders, depth sounders, tachometers, power converters and radiotele- phones to outfit your boat for safe cruising - economically!

Send for your FREE Heathkit Catalog now! www.americanradiohistory.com NEW From Heath! NEW LOW PRICES New Low Price On Deluxe 21" Color TV 0p Ends costly color TV servicing ... only ira4,g4 set you adjust and maintain yourself. Only color TV you can install 3 ways O Kit GR -53A . wall, custom or Heathkit cabinets. O Now Only Tunes all channels for 21" of the best color pictures in TV plus true hi -fi sound. U Assembles in 25 hours ... no special skills needed. 127 lbs. Also new low (less cabinet) price on preassembled Heathkit cabinets: GRA-53 -7, walnut cab. (iilust.), 85 lbs. . $108; GRA -53 -6, walnut- finish hard- board cab., 52 lbs... $46.50.

New Low Prices On Heathkit Stereo /Hi -Fi Like the AR-13A Transistor Stereo Re- ceiver opposite with 66 -watt amplifier; AM, FM, FM Stereo tuning; walnut cabinet. 35 lbs. Other new low-priced stereo components including, Kit AR -13A Kit AJ -43D, deluxe transistor AM /FM/ Now Only . -_..- FM - $109.00 ...J'.._. _:.: _.... _.._...:-_._.._. stereo tuner.. n A QO Kit AJ -33A, transistor AM /FM /FM jVS4 stereo tuner... $94.50 1 Kit AJ -41 (tube), AM /FM /FM stereo tuner ... $112.50 Kit AJ -12 (tube), FM /FM stereo tuner . $65.95 See them all in FREE Heathkit catalog.

New Low Prices On HeathkitR /Thomas Organs Like the GD -983 Heathkit /Thomas "Coronado" Transistor Organ, opposite, with 17 organ voices, two 44 -note key- Kit GD -983 boards, Leslie plus 2 -unit main speaker Now Only system, 28 notes of chimes, bench, plus many more professional features. 242 lbs. Also the Heathkit/Thomas "Artiste" Transistor Organ with 10 voices, two 37- $19900 note keyboards, repeat percussion, etc. is now only $332. 154 lbs. Both organs have all genuine Thomas factory fabricated components.

Heath Company, Dept. 19 -12 HEATHKIT 1956' NEW Benton Harbor, Michigan 49023

1966 Enclosed is $ plus shipping. CATALOG! Please send model (s) Please send FREE 1966 Heathkit Catalog. Free! 108 pages . . many In full color Name .. describe these and over 250 easy - Address to-build Heathkits. Save up to 50%. City State Zip Mail coupon for your free copy. Prices & specifications subject to change without notice. CL -2148 of

JANUARY, 1966 "34

www.americanradiohistory.com Br! CATALOG ASK ME Cu) AA World's "BEST BUYS" in GOV'T. SURPLUS another Electronic Equipment Continued from page 34 011111. FM Handie- Talkie for the 450 -470 me band. FULL OF TOP QUALITY ITEMS - It employs a crystal controlled receiver and Transmitters, Receivers, Power Supplies, Inverters, Mi- crophones, Filters, Meters, Cable, Keyers, Phones, Anten- transmitter and can be licensed as a Class A nas, Chokes, Dynamotors, Blowers, Switches, Test Equip- ment, Headsets, Amplifiers, Converters, Control Boxes, or B Citizens Radio Station or in other Indicators, Handsets, etc., etc. SEND 250 (stamps or coin) Safety and Special Radio Services. for CATALOG and receive 500 CREDIT on first order. Ad- dress Dept. 29. FAIR RADIO SALES Quitting CW for Phone P.O. Box 1105 LIMA, OHIO 45802 I have a 40/80 -meter home brew CW transmitter. Is there any way I can convert it to AM or SSB? Engineering EARN DEGREE G., Dayton, Ohio You can earn an A.S.F.. E. degree at home. College level HOME -R. STUDY courses taught so you can understand them. Continue your education, earn more in the highly paid electronics Industry. Missiles, computers, transistors, automation, complete electronics. Over 27,000 graduates now employed. Resident school available To convert it to SSB would be difficult but at our Chicago campus rounded 1934. - Send for free catalog. is is American institute of Engineering & Technology AM easy. All you have to do connect 1139E West Fullerton Parkway Chicago 14, Ill. an audio 'amplifier in series with the final RF amplifier B+ lead through a matching TRANSISTORIZED CONVERTER transformer as shown in the diagram. The 26 -200 MC audio signal, in series with the DC plate Receive signals from 26 to 200 MC (1 MC voltage, alternately raises and lowers the spread), on broadcast band using car radio, plate voltage reaching the RF amplifier. The crystal control or tuneable (1 MC spread). audio output of the audio amplifier should KIT $10.00 pp. WIRED $19.00 pp. be roughly equal to half the DC input power MESHNA 198 ALLERTON LYNN, MASS. 01901 of the RF amplifier (40 watts of audio for an 80 -watt transmitter, etc.). The impedance for more interesting reading, don't forget to pick matching transformer may be an output up your copy of the February -March issue of transformer, such as a Stancor A -3311, connected backwards, as shown. The impedance RADIO -TV EXPERIMENTER B+TO RFAMP at your favorite newsstand December 28. BREAK Better still, to make sure you never miss a copy, CIRCUIT let us add your name to our growing list of sub- HERE X scribers. r

RADIO -TV EXPERIMENTER RTV -764 B+ FROM POWER SUPPLY 505 Park Avenue, New York, N. Y. 10022 can be varied by various 0. K. I'm interested in subscribing to RADIO - trying amplifier TV EXPERIMENTER. output and transformer connections such as 8 -ohm or 16 -ohm amplifier output to 4, 8

I am enclosing $7.00 for 2 years; or 15 -ohm transformer lead. Set the ampli- $4.00 for 1 year $10.00 for 3 years fier tone controls to reduce high frequency response so you won't cause excessively wide Name side bands to be produced. (please print) Or you can buy a modulator, such as the Address Eico 730 ($59.95 in kit form) which contains an impedance matching transformer City State Zip and can be connected directly to a trans- J mitter rated at up to 100 watts input.

40 RADIO -TV EXPERIMENTER

www.americanradiohistory.com II I

Frigid Electrolytic Frozen Noise What effect do sub -freezing temperatures The electrical interference lever here is so have on the electrolytic capacitors in ordi- high that I can get an S -9 noise reading on nary house radios? I am concerned since I my HQ -180 -A occasionally, and at times I often transport radios in cars when the tem- can't even work other hams less than a mile perature is many degrees below freezing and away. Local utility personnel have assured the sets are sometimes exposed to the cold me that they will fix the trouble if 1 find the for eight hours or more. cause. I have tried transistor radios but the -P. E. K., St. Paul, Minn. noise is so strong I can't find a null. What can 1 use to locate the source of the noise? To avoid freezing, electrolytic capacitor -G. T. B., Eilson AFB, Alaska manufacturers employ electrolytes which will not freeze when exposed to natural low Write to the Engineer in Charge of the temperatures. Radios and television sets are FCC Field Office, Box 644, Anchorage, usually shipped in unheated railroad freight Alaska, and spell out the frequency bands cars which may be exposed to sub-zero tem- on which the interference is most severe, peratures for many days. Low temperatures time of occurrence, etc. If it is not caused may temporarily lower the capacity of elec- by radar or other military equipment the trolytes. High temperatures tend to increase FCC might be interested in helping you capacity and lower breakdown voltage. eradicate the noise. A portable radio direction finder can be Takes 2 To Tango useful in tracking down noise sources. The 1 have a 10 -watt amplifier which is no new Bendix Navigator 400 (sold through longer on the market. What amplifier can EICO and its distributors) is compact and I use with it to form a stereo system? highly sensitive. It costs around $100, how- -R. R. L.. San Antonio, Tex. ever. be in over the It is not necessary for both amplifiers in The noise might brought a stereo system to have identical character- power line and then picked up by your re- istics although critical audiophiles may in- ceivers antenna. Try a power line filter. sist on it. Almost any high quality amplifier Stick It Anywhere of similar power rating should do. I have a Lowry Lincolnwood 25 electronic organ designed for use with an external ... But Don't Call Us! On certain bands, I get a loss in volume speaker. I understood that an internal speak- when I pull out the headphone plug from er could be added later. I find there is not my portable Trans-Oceanic shortwave re- room for a Leslie type speaker. Since I don't ceiver. It also occurs when I switch bands. have room for an external speaker, I wonder has ever built a Leslie I was told it is the oscillator tube, but it if any of your readers system using 8" or 10" speak- checks OK. Do you have any idea as to type speaker an er, space available in an what is causing the trouble? into the chamber organ which, in my case, is 24" long, 11" -J. M. , Newark, N. J. deep, 12" high. Does anyone have plans While it doesn't sound like oscillator tube available? trouble, try a new one anyway. It sounds -P. F. M., Verona, Wis. more like band switch contact trouble. Get some contact cleaner and clean the contacts. Instead of opening up the organ console, If this doesn't cure the trouble, call MA 4- have you considered a speaker suspended or in the wall? 1700 in Newark and get the name of an from the ceiling recessed Milt Herth, a big -name authorized local service station. Quite some time ago, organist set his speakers right on top of his Help! Hammond while performing at Jack Demp- Could you give me the tube locations for say's restaurant in New York. Sounded great a McGee miniature broadcasting station? even if it wasn't particularly attractive to the -D. S., Virden, Ill. eye. Do any readers have suggestions that can help P.F.M.? We don't have that information available and suggest you write directly to McGee Mess With the C Radio Company, 1901 McGee Street, Kan- At the New York Hi -Fi show I heard u sas City, Missouri, giving them the model speaker system that I thought was really number of your unit. good. It consisted of an AR -1W woofer,

JANUARY, 1966 41

www.americanradiohistory.com tuned to 540 kc to locate the source of the beat signal. If it is due to poor electrical ASK ME n contact, bond the two mental surfaces to- another e gether. If it is occurring in the receiver, try using a shorter antenna or a wavetrap, across the Janzen 130 mid -range and lonovac tweeter. antenna and ground terminals tuned to the They were using an 0.5 mfd capacitor be- frequency of the offending signal. tween the tweeter and the mid -range speaker. The year before, they used a 2.0 Scat Bat! mid capacitor. I would like to bring in the Can you give me a circuit for an AC tweeter no lower than 7500 cps. How should power supply for a battery- operated radio? I connect it? It requires two volts at 0.06 amperes, 90 -135 -T. A. C., Livingston, N. J. volts DC and -9 volts DC. The easiest way is to try various size -K. F. F., Regina, Sask., Can. capacitors until you find the one that gives The power supply circuit shown in the you the most pleasing results. Or, talk to diagram below will replace your A, B, and your dealer. Most hi -fi dealers have at least C batteries. Power transformer T is one one expert who knows their products inti- of the low cost types that furnish 6.3 and mately. 125 volts AC. The diodes are of the silicon type, rated at 750ma/400 PIV (much better Finding the Circuit than needed), which are available at low Where can 1 get circuit diagrams and other cost. Adjust R1, with the radio connected technical information on European and Jap- and turned on, while measuring voltage anese made radios and tape recorders? across A and A- to 2 volts. Adjust R4, -A. S. S., Karachi, Pakistan under the same conditions, to 9 volts. If hum Wish we could give you specific answers. is excessive, use larger value capacitors for You might try writing to Howard W. Sams & Cl and C2. Co., Inc., 4300 West 62nd Street, Indianapo- ON - OFF lis, Indiana. The firm publishes diagrams of SWITCH most popular makes and types. ,052 -115V n Too Much Soup My receiver picks up the image of a local station on 1450 kc at 540 kc and of another local station 1490 kc at 580 kc. How can I eliminate the images? -J. A. C., Cicero., Ill. Doesn't sound like images. If your receiver has a 455 -kc IF, its oscillator would be tuned to 1905 kc when the set is tuned I00K C- to receive on 1450 kc (1905- 455= 1450). It might also be able to receive a strong sig- Going Up! nal on 2460 -kc which, beating against the I have a good war surplus short wave re- 1905 -kc oscillator signal, will produce a 455 - ceiver which does not cover the broadcast kc IF signal (2460 - 1905 = 455). band. Can you describe a converter I can It sounds like intermodulation. Strong un- use so I can tune through the broadcast heard signals could beat with the 1450 kc band? signal and produce a 540 kc beat, etc. The -G. P., Tucson, Ariz. heterodyning could occur in the receiver You can build a simple converter using front end (RF ampilfier or mixer). How- the circuit shown in the diagram. It employs ever, it would occur external to the receiver. a pentagrid converter (VI) whose RF input Two pipes, touching but not making good is tuned with C1 to the desired station. The electrical contact, could act as a detector and local oscillator is fixed tuned by C2 to 2000 radiate the beat signal produced by two or kc. Thus, a broadcast signal at 560 kc het- more strong radio signals. Metal sheathing, erodyne with 2000 kc local oscillator will making poor contact, could also cause such produce a 2560 kc beat signal which is trouble. Use a portable transistor radio tuned in by your short wave receiver. A

42 RADIO -TV EXPERIMENTER

www.americanradiohistory.com broadcast signal at 1500 kc will produce a has been published on these ei9`ects, alniost as far as beat at 35.00 kc. nothing in the electronics industry Transformer T1 is a standard broadcast I have seen. I think that this has prevented band antenna coil. The oscillator coil, L1, is the possible contributions of experimenters, work as a a standard broadcast band oscillator coil, for and delayed much development use in a receiver with 455 -kc IF, which is result. normally tuned from 1010 ks to 2060 kc. One fairly crude but simple experiment Instead of a variable tuning capacitor, a deserves mention. Hook two small (one inch small trimmer capacitor (C2) is used for approximately) metal plates to the leads from output setting it to 2000 kc. a high Z power amplifier (a reversed transformer connected to the speaker output with one mil +CATHODE works). Cover the electrodes FOLLOWER ANT " gym` mylar or similar dielectric. Feed the ampli- °TO SHORTWAVE RE IVER fier from a music source. When placed on 200MMF GND the skin of the face, usually in the vicinity RFC of 22MH of the hinge of the jaw, the majority people will hear the music, but not through ANT the ears. Probe voltages of 8 to 30 volts rms TO1MF seem adequate for the path from one side UND of the head to the other. Some people have been able to "hear" with the electrodes on back, arms, etc. at higher voltages. If insulation breaks down, all that is experienced is 8+ a mild shock, but no sound.. I would like to dis.cuss this at greater To use the converter, tune the short wave length, if any of your readers are interested. receiver dial from 2560 kc through 3500 kc -H A. G. S.., Neptune, N. J. until you find a local station and adjust Cl Your statements are most interesting. for maximum volume. Then set the short Readers interested in discussing this subject wave receiver dial to the frequency of the with you are requested to address their let- station you just heard plus 2000 kc. (For ters to "Ask Me Another" for forwarding example, if station is on 1010 kc, dial should to you. As for connecting electrodes to the read 3010 kc). Now, adjust Cl until you human body, this is one practice the Editor again hear the same station. You can now hopes to discourage except for trained re- tune though the band with the shortwave searchers in properly equipped labs. set tuning dial and adjust Cl for best reception. A manual volume control (R1) is pro- Transistorized Audio Generator vided to prevent overloading the converter. Can you give me a circuit for fixed -frequency audio signal generator using tran- Listen to This! sistors and operable from a battery? I noted with interest the letters and com- -E. D., Jackson Heights, N. Y. ments caused by your mention of hearing radio signals via fillings in teeth. There are some facts regarding direct interaction of the organism with electromagnetic energy which you may not have encountered. Scattered reports, which have been circulating, have usually been shrugged off as "just one of those things." Audition by means of dental nerves has not only been (somewhat) investi- gated, but a special device to create the effect deliberately was patented. At least, nerves in the body can be directly certain in the di- to produce the sensation of hear- The oscillator circuit shown stimulated Its frequency the use of the ear mechanism. agram employs two transistors. ing, without value of audio has the ability to correctly interpret depends upon the inductance The brain the primary of electromagnetic energy and frequency choke Ll. It can be several classes transformer when the extract intelligence therefrom, without using winding of an output not used. any of the normal sensory inputs. Very little secondary winding is 43 JANUARY, 1966

www.americanradiohistory.com Anyone Can Build These High Quality Precision SAM Kits At a Substantial Savings

Precision Decade All Purpose Pocket -Size Resistance Box Shop Tachometer Hearing Aid Designed so the electronic ex- This tachometer is guaran- New hearing aid design pro- teed to outperform any $50 perimenter can get any value vides a minimum of 42 deci- tach available today or your bels of gain and is adequate of resistance at 1% accuracy. money will be refunded. This for 75% of all cases of par- Made of precision compo- tach belongs in the tool chest of every machinist, electri- tial deafness. The aid weighs nents, this decade box offers cian, model maker, motor only three ounces and is serviceman and inventor. A such advantages as fast fin- smaller than a king -size cig- six position rotary switch gertip switching from any re- enables you to select three arette pack. Uses latest elec- sistance value from 1 ohm to speed ranges in either for- tromagnetic earphone and ward or reverse rotation. 1,111,110 ohms within sec- miniature crystal micro- Three ranges -500, 5000 -0 phone. Powered by a 10¢ pen onds. Add or subtract as and 15,000 -cover the gamut rpms in home work- light flashlight battery and little as 1 ohm with 1% ac- of the shop or laboratory on ma- has a switch for turning curacy. And ordinary hand chine tools, such as lathe power off when not in use are needed cutting speeds, motor rpm, tools all that's to and a control that lets you drilling speeds and other mo- assemble it in less than 2 tor driven tools where rpm is adjust the volume to a com- hours. an important factor. fortable sound level.

SCIENCE & MECHANICS, KIT DIVISION RTV 126 ioe 505 Park Avenue, New York, N. Y. 10022 Please send the SBA kits that have complete asssembly plans, or the assembled and fully tested electronic aids

checked below. I understand that if I am not completely satisfied I may return the kits within 10 days for a complete refund of the purchase price. Hearing Aid $24.95 Kit $34.95 Assembled Tachometer $16.95 Kit $21.95 Assembled Decade Box $24.95 Kit $29.95 Assembled Add 10% for Canadian and Foreign orders. New York City residents add 5% for N.Y.C. sales tax. NAMF (Please Print) ADDRESS ZIP CITY STATF CODF Check or money order enclosed, ship post paid. Enclosed $3.00 deposit, ship balance C.O.D., plus postage and C.O.D. charges.

44 RADIO -TV EXPERIMENTER

www.americanradiohistory.com Buildthe BanderA

U Here is a simple project that'll give you many hours of construction and listening de- f light. The Aero-Bander is a self contained Edward A. converter that adapts your pocket portable Morris. transistor broadcast radio to receive the aeronautical communications that fill the bands WA2VLU 'round the clock. You'll be able to listen to planes taking off and landing, ground con- trollers, pilots requesting weather information, and much, much more. The Aero -Bander is both easy and fun to build. A rank novice should be able to put it together in less than 5 hours! It's inexpensive, building it won't put a crimp in your wallet. Using all new parts, the total tab is less than ten dollars. In average use its single 9 -volt battery should last its entire shelf life. The Circuit. The Aero-Bander uses a single transistor in an Autodyne oscillator-mixer configuration. See schematic diagram. The oscillator is somewhat unique in that it operates at one -half the desired injection frequency, that is from 54.2 mc. to 66.7 mc. Signals picked up by the antenna are coupled into the base input circuit of transistor Q1 by capacitor Cl and coil LI. The base input is peaked with .variable capacitor C2, which together with coil L2 resonate at the desired incoming signal frequency. The incoming signal mixes with the second harmonic of the oscillator -that is, from 108.4 mc. to 133.4 mc. -and produces an intermediate frequency signal of 1600 kc. -which

JANUARY, 1966 45

www.americanradiohistory.com BOTTOM V EW TOP VIEW 20" 32

16 DIA HOLE FOR RANGE ADJ. TRIMMER

L.H. SIDE VIEW . R.H.SIDE VIEW

Flanged half of the chassis box is prepared as shown above; cement window inside chassis.

is the converter's intermediate frequency. Mechanical Construction. Begin con- The IF signal is radiated into the transistor struction by laying out the spots to be drilled pocket radio by L3, which is placed in close on the chassis box. The larger holes are proximity to the receiver's antenna coil. The easily formed by first drilling a smaller hole, radio is tuned to the converter's IF signal, then enlarging it to the proper size with an 1600 kc. -the "top of the dial." aluminum or steel reamer. Two detail draw- Tuning is accomplished by varying capaci- ings, one for the chassis box cover and one tor C7, which together with C4, C6, and for the case, give complete specifications for L4, control the frequency of the oscillator. preparing the box prior to assembly. Follow Capacitor C6 serves a dual function, it sets these plans closely-do not deviate. the frequency range that will be received by The opening for switch S1 can be made tuning C7, and is also part of the feedback by drilling two 1/4 -inch holes 1/4 -inch apart, network that starts and sustains oscillation. center to center. The 1/4 x 1/2" rectangular Bias current for transistor Ql is supplied slot is then formed with a small triangular through resistors RI and R2. Resistor R3 file. helps to stabilize the circuit, and is by- passed Mounting brackets for C2, C7, J1, and by capacitor C4. battery B1 are fashioned out of two size As we said, the output of the converter "AA" battery holders. Drill out the rivets appears at L3, which is tuned to the IF fre- which hold the spring clip to the body of quency of 1600 kc. by capacitor C5. Capaci- the holder. These clips are used as a battery tor C5 looks much like a short circuit to the holder for B I. Next the rivets holding the very much higher frequency signal of the solder tabs to the body of the holder are oscillator, and in effect connects the col- drilled out. The bodies of the holders are lector of Q 1 to coil L4. then cut apart to provide mounting brackets

46 RADIO -TV EXPERIMENTER

www.americanradiohistory.com BOTTOM VIEW TOP VIEW TRANSISTOR SOCKET is

Top and bottom of larger of the two perf boards are shown here for construction details. for capacitors C2, C7, and for jack JI. Battery terminal clips for BI can be had CHASSIS HOLE NUMBER KEY by separating the terminals from the bakelite I: ;" diam. for L3. 2: 1/16" diam. for L3. 3: 3/e" strip of a used transistor radio battery. 'i1( diem. for C2 shaft. 4: hole for #4 screw to Cut a piece of 1/(i -inch thick plastic and cement on the inside of the case, over the mount perf board. 5, 6, 7: hole for #4 screw opening for the IF output port. for vernier dial. 8: 7,¡(;" hole for vernier dial The shafts of capacitors C2 and C7 are shaft. 9, 10, 11, 12: holes fo, #6 screws to mount battery clips. 13, 14: holes for #6 '%c inch in diameter. These shafts will not screws to mount antenna bracket, J1. 15, 16: directly fit either a standard 1/4 inch knob, or the vernier dial which was made for use with holes for #6 screws to mount bracket for C7. 17, 18: holes for #6 screws tc mount bracket 1/4 inch shafts. An adapter can be made from for C2. 19, 21: holes for #6 screws to hold Si. common 1/4 -inch o.d. copper tubing, which 20: 1/2" x 1/4" cut out for on -off slide switch Si. has a Yi; i.d. A length of tubing is cut, and if necessary straightened. The adapter is slid

All components are mounted on "cover" half o the chassis box; holes are keyed by number.

JANUARY, 1966 47

www.americanradiohistory.com SOCKET QI SWITCH SI COIL L4 C4 BATTERY BI R3 C8 f L3)

COIL L3

JACK Ji

C2 (UNDER L3)

C7 R2 RI C3 CI CAPACITOR C6

--L3 C3

VERNIER DIAL C2 MECHANISM

ANT BRACKET JI

Various views of chassis show the mounting of perf boards, and the location of components.

over the shaft, and cemented in place with against the case, but is mounted with a 3h6 epoxy cement. inch spacer between it and the case. This is Finishing It Off. A professional appear- done so the lip of half "A" of the case will ance can be had when the case is neatly go under the vernier dial, otherwise the two painted, and decals applied. Before painting, halves of the case will not mate. carefully clean the case to remove any dirt Capacitors C2, C7, and jack J1 are mount- or grease which would mar the finish. The ed using 6 -32 hardware. Insert L3 in the case can then be spray painted following the mounting hole provided for it, and mount manufacturers directions. Remember, two switch Si with 4 -40 hardware. thin coats are better than one thick coat. Take special note that if you alter the Allow for sufficient time for the first coat mechanical lay -out presented here, that the to dry before applying the second. Decals coil on L3 must be located as close as pos- can be applied when the paint has thoroughly sible to the antenna coil in the radio. dried. Two coats of clear spray lacquer can Remember too that the position of the be applied to protect the decals. plastic window in the case will have to be After the case has been prepared, mount changed if the position of L3 is changed. the vernier dial using 4 -40 hardware. Note It should be directly between the coil on L3 that the vernier dial is not mounted directly and the antenna coil in the radio. The con-

48 RADIO -TV EXPERIMENTER

www.americanradiohistory.com C2

EDGE OF CASE L3' NOT TO TOUCH ANTENNA

VERNIER DIAL MECHANISM DRIVES C7

IF OUTPUT PORT WITH PLASTIC WINDOW

Close -up views of front panel and top of the chassis show details of construction. Notching of chassis for L3 and tuning dial is shown above; antenna mounting details and IF output port are shown in view at left.

verter will not operate properly if L3 is lo- resistors R1, R2, R3, and transistor Q1. The cated too close to the sides of the case. general parts lay -out can be seen in the pho- Electrical Construction. As shown in the tographs. Flea clips are again used as terminal photographs, the unit was built on two sec- points. The board is mechanically held in tions of perforated board. The first section, place with a bracket and 4 -40 hardware. 13/e -inch by 17/8-inch is located near the bot- Although the author chose to use a tran- tom of the unit. This section holds the range sistor socket for mounting Q1, the transis- adjustment capacitor C6, and coil L4. Coil tor may be soldered directly into the circuit. L4 is mounted in a cutout in the board, and If you plan to solder Q1 in directly, be sure is held in place with epoxy cement. Capacitor to use a well tinned low wattage iron and a C6 is mounted with 4 -40 hardware. Flea suitable heatsink to prevent damage to the clips are used as terminal points. After this transistor. Cómplete the soldering quickly. is wired and assembled, glue it in place with In view of the very high frequencies in- epoxy cement. volved in the operation of the converter The second section of perforated board be sure to keep all leads as short and as rigid holds capacitors Cl, C3, and C4, as well as as possible. Make every effort to keep every-

BOTTOM J1 ANT VIEW

_-_. CI 47 MMF

Li L2 C3 270 MMF

Schematic diagram of the Aero- Bander: notice the apparent absence of any output from unit!

JANUARY, 1966 49

www.americanradiohistory.com To give your Aero -Band- er a pro look bolt the unit to your transistor BCB MOUNTING' receiver rubberbands HOLES - rniN look messy. Place nylon SCREWWSS studs on the receiver ADDED TO RECEIVER with mating holes in the cove of the Aero- Bander. Sl ---1 NYLON SCREWS IN RADIO MAIE WITH HOLES AND NUTS IN CONVERTER BASE

thing as mechanically solid, otherwise the sta- When you're finished, recheck all wiring to bility of the converter will be adversely af- be sure the unit is wired as shown in the fected. schematic diagram. Be especially careful with the wiring to the transistor, and to BI. All Axed value capacitors are Eimeco type DM -10 i A suitable antenna can be made from an Dipped Silver Mica capacitors, unless stated other- 8 -inch piece of coathanger wire. Scrape the i wise. paint from the last inch or so from one end, PARTS LIST and tin with a soldering iron. Solder on an RCA B1 -9 -volt battery (Eveready # E-177 or phone plug, being careful not to use an exces- equiv.) sive amount of solder that might cause a C1 -47 -pf capacitor (Lafayette #30G3518) short inside the plug. Slip a piece of insu- C2, C7- 1.5 -5 -pf miniature variable capacitor lating tubing (E. F. Johnson #160-102) down along the wire, and part C3- 270 -pf capacitor (Lafayette #30G3538) (Continued on page 131) C4 -12 -pf capacitor (Lafayette #3003506) C5- 100-pf capacitor (Lafayette #30G35271 C6- 1.5 -7 -pf ceramic trimmer (Centralab type 825EZ) C8- .001 -mf ceramic capacitor Piggy- backed to a receiv- J1 -RCA single hole mounting phono jack standard broadcast the L1 -2 turns #22 hook-up wire over gnd. end er, Aero- Bander is all set to pull in DX. of L2 L2 -5 turns B & W Miniductor #3002, tapped at 2 turns from gnd. (Lafayette #40GI6111 L3- Ferrite loopstick antenna (Lafayette #32G4108) L4 -7 turns B & W Miniductor #3003 center tapped Q1- 2N1177 transistor (RCA) R1- 27,000 -ohm, t/z -watt resistor R2- 2,700-ohm, 1/2-watt resistor R3 -1,000 -ohm, 1/2-watt resistor S1- S.p.s.t. slide switch (Lafayette 3403703 or equiv.) 1 -4 4 "x 21/2"x 11/2" aluminum chassis box 1 -2" x 13/s" x 1/16" plastic sheet 1-Vernier dial mechanism (Lafayette 99G6031 or equiv.) 2 -Size AA battery clips (Keystone #137 or equiv.) 1 -RCA phono plug for antenna Misc. -Nuts, bolts, hook -up wire, transistor socket, perforated circuit board, solder, knobs, etc.

Estimated construction time: 8 hours Estimated cost: $ 10.00 or less

Itt111111111111:11W111,111111111:1111111Y11111111,17111.1111111111,11111111111111A1111111111111.1111111111111,MIVT,1111,111111 11111111111111/11121.1,.

50 RADIO -TV EXPERIMENTES

www.americanradiohistory.com 41111116. ME a URI.MUIR 1111.7111mrelilir

MIER NUMI MI 111111 U AMPLIFIER

by OHIO .1 WEN, K3KNY pr

"Getting more than you bargained for" is usually a phrase that's used with tongue -in- cheek-but not when describing this unit!

A handy test bench amplifier should be A built -in neon indicator lets you monitor exactly that -handy! Why not put an end to the peak level of your signal. fooling around with temporary setups and Jacks are even provided for external B+ build a multi -use unit that has some guts? and filament voltage at a power sufficient A quick look at the schematic diagram for to operate small experimental circuits. this construction project shows that it has All the jacks, switches and indicators for on the quite a few features that expand and simplify utilizing these features are accessible your experimental work: front panel and the top of the 4 "x5 "x6" alu- An internal speaker is right there, built in minum enclosure used for the unit. and ready to use when you need it; or Circuit Operation. The signal input level External jacks can be used for connecting is controlled by resistor RI and then passed earphones, or 4 -, 8 -, or 16 -ohm external to the control grid of VI A through capacitor speakers. Cl. Bias is provided by capacitor C2 and Pin jacks allow you to pick off your signal resistor R2. The auxiliary output jack, J3, after the triode amplifier stage of V1 to de- for the oscilloscope connection, is provided termine the signal characteristics. through capacitor C3 to the plate of the bl JANUARY, 1966

www.americanradiohistory.com triode section of VIA. The double section of formed by C9A, C9B, and resistor R6. The the 6U8 -A tube provides two stages of am- B+ and 6.3 vac power supply voltages are plification in one envelope. connected through fuses F1 and F2 to the The signal is coupled to the pentode stage, external pin jacks allowing the amplifier to be V 1 B, through capacitor C4 after being de- used as a power supply for low power appli- veloped across 270,000-ohm resistor R3. The cations. bias for VI B is provided by C5 and R5. The The neon indicator lamp, I2, across the peak -level neon indicator lamp, Il, is con- primary of power transformer, T2, indicates nected through capacitor C'7 to the plate of a power -on condition when S2 (located on the pentode section; similarly, the phone jack, potentiometer R1) is closed and applies J4, is connected through C8 to the plate. power to the circuit. Output transformer T1 provides 16, 8, or Putting It Together. Begin construction 4 -ohm outputs for the speaker jacks J5, J6, of the bench amplifier by perforating the and J7. The internal speaker is connected to front of the aluminum chassis box for the the 4 -ohm jack and is cut in and out of the speaker. Cut one large or several smaller circuit by switch SI. holes and back up with a square of aluminum The power supply section of the amplifier screening to protect the speaker. The next is comprised of transformer T2, diode rec- step is to form an inside chassis of sheet alu- tifier D1 and D2. and the RC filter circuit minum that is cut at one end to fit around

The completed amplifier is handsome as well as easy to use; and with its carrying handle, PARTS LIST a cinch to transport. The side view (bottom) C1, C4, C8 -.005 mf ceramic capacitors calls out the components on one side of the C2, C5 -5 mf, 15 WVDC electrolytic capacitors inside chassis as well as showing how the C3, C6, C7 -.01 mf ceramic capacitors C9- 20 -20 -20 mf triple- section, 150 -volt elec- chassis is cut out to fit around the speaker. trolytic capacitor (Sprague TVA3440 or Radiator -type metal screening was used on equiv.) the front panel to protect the speaker cone. Dl, D2 -Diode rectifiers, 400 PIV, 450 ma (GE -504 or equiv.) F1 -1/16 -amp, 250 -volt fuse, type 3AG with fuse holder F2, F3 -1 /2 -amp, 250 -volt fuse, type 3AG with fuse holder 11, 12- "Tineon" indicator lamps, types 41N2317 -6 and 36N- 2311 -6, respectively J i , .15, .16, .17 -phono lacks .12, .13, J8, J9,.110- insulated tip jacks .14 -2- connector phone jack R 1 -1 ,000,000 -ohm potentiometer with s.p.s.t. switch (521 R2 -5600 -ohm, 1/2-watt resistor R3- 270,000 -ohm, 1/2-watt resistor R4-1,000,000-ohm, 1/2-watt resistor R5 -68 -ohm, 1/2-watt resistor R6, R7-1800 -ohm, 2 -watt resistors S1- S.p.s.t. toggle switch S2- S.p.s.t. switch (see R11 T1- Universal output transformer (Knight 6- W- 14 -HFL or equiv.) T2 -Power transformer; Pri: 110 -120 vac, 60 cps, Sec: 125 volts CT, @ 25 ma, and 6.3 vac @ 1 amp. (Knight 6 -K -1 or equiv.) Vl -6U8 -A vacuum tube with 9 -pin miniature socket 1 -4 -ohm, 4 -inch diameter speaker 1 -4" x 5" x 6" aluminum chassis box (LMB CU- 3007 -A or equiv.) 1 -3'/8" x 57/8" aluminum sheet Misc. -Line cord, grommets, angle brackets, dial knob, aluminum screening, carrying handle, rubber feet, panel marking, hookup wire, hardware, solder, etc.

Estimated cost: $ 15.00 Estimated construction time: 8 hours

52 RADIO -TV EXPERIMENTER

www.americanradiohistory.com the speaker. Now begin mounting components on the chassis and front and top panels of the enclosure; check clearances as you work, and use photographs as a guide. After wiring the unit, finish the outside by identifying the jacks and switches with suitable panel markings. Mount rubber feet on the bottom of the unit. Finally, provide ven- tilation by opening some holes in a neat pattern on the back or sides of the aluminum chassis box. Putting It To Work. Allow the unit to warm up and connect an audio signal from, perhaps, a crystal set or phone output. Use the internal speaker first and then continue checking out your wiring by using external speakers and the headphone jack. External power for circuits you are working on can be taken from the pin jacks while the unit is being used as an amplifier. The B+ is available at 120 volts at 15 wa. and the filament heater voltage at 6.3 vac at .5 amperes. To use indicator lamp I1 to determine the peak level of an output signal, first disconnect any external speaker, then set the speaker switch Si to off. Turning up the volume control R1 will increase the signal to I1 causing it to flash and giving you an By indication of signal strength. connect- This view of the inside chassis (top) shows ing an AC voltmeter to the phone jack J4, the components on its other side. The view you can measure actual signal level and relate of the front and top panels (above) calls the intensity of I1 to actual voltage values. out the location of the jacks and controls.

OUTPUT SCOPE JACKS C6 TRANSFORMER J5 .o, 31 + C7 +C8 1 16n rJ2IJ3 MF .01 MF .005MF C3 INPUT C1 ,, OLMF II }-__AMAXLEVEL 5 -6U8-A 6 -6U8 NDICATOR 9 2 VIA )+ VIB RI .005 e 4 5 IMES 4 5 MF

+ C5 +C2 R3 R4 R2 5MF R5 270K IMEG 5.6K Ì50V 68n 5 MF SPKR 4n S1

POWER I.8K t8K TRANSFORMER R6 2W R7 2W FI J8 8+ T2 Red DI a! A OUTPUT + C9A + C98 ± C9C I2 CT T2OMF T20MF PILOT T20MF CtÌGND LAMP Red N+D2 p VI PINS Gm VI PIN 4 F2 JIO FIL .5 A ,SA 6.3V

JANUARY, 1966 53

www.americanradiohistory.com PRPB1NC THE SECRET OF THE ANI1-WQ, BY K.C. KiiCK

54 RADIO -TV EXPERIMENTER

www.americanradiohistory.com The scientifically confirmed existence of atomic anti -particles primes the imagination to accept the possibility of an anti- world- even an anti -self!

the Tunguska River, in early morning hours of June 30, 1908, in the basin of In the explosion so violent even Siberia, a giant explosion burst out of a clear sunlit sky -an sun seemed dark. the and burned, silverware melted, Farmers forty miles away were hurled to the ground And for many months afterward, trees thirty miles from the flash turned over, uprooted. as the Caucasus, one could read a the sky was bright at night in Europe; and is far South at midnight without artificial light. newspaper the cause of the explo- What Caused It? For many years afterward, scientists sought a meteor crash but no crater existed. sion. Some said it might have been the result of comet, but no one had seen a comet Others thought it might have been touched off by a toward earth. crashing out a strange phenomenon that Now, almost sixty years later, man ventures to spell that could ultimately mean a new may account for the freak explosion, a phenomenon destruction. A phenomenon that could source of vast power, or a new means of violent our own, but reversing time, and pos- spell discovery of an anti- world, a world to mirror made of materials that when they collide sibly peopled by anti -human beings. A world of this planet, explode, giving off tremendous radiations. with the materials explosion be linked Matter. Scientists now have reasoned: could the Siberian Invading of anti -matter possibly have seeped this strange phenomenon? Could a sizeable hunk to crashing to earth? into our galaxy and have exploded in the air before free neutrons must have been released If it had, they reasoned, then a vast number of radioactive carbon -14. The explosion, at the time, to join nitrogen atoms, and turn into 55 JANUARY, 1966

www.americanradiohistory.com The discovery of the antiproton in 1955 at the University of California Lawrence Radia- tion Laboratory was marked by the photo above. Left to right are Dr. Emilio Segre, Dr. Clyde Wiegand, Dr. Edward J. Lofgren, Dr. Owen Chamberlain, and Tom Ypsilantis, then a graduate student. The discovery team consisted of Segre, Wiegand, Chamberlain and Ypsilantis. Dr. Lofgren was in charge of the Bevatron, the accelerator with which the particle was discovered. Right, Dr. Chamber- lain, co- discoverer of element 43, and anti -proton examines huge but delicate accelerator.

in that case, would have increased the con- But it had taken over half a century to tent of carbon -14 in the earth's atmosphere reach this solution. For the theories of an- by 7% and this heightened radio -activity be nihilation of matter have been among the recorded in vegetation existent at the time. elusive mysteries of our time. The Tree Tells A Secret. In the early In the early decades of this century, famed months of this year, physicist Clyde Cowan British scie.list Sir Arthur Eddington the- of the Catholic University of America, with oretically reasoned negative and positive ex- Chemist Willard Libby of UCLA, decided to plosions of energy caused the stars to burn. test out this anti -matter theory. They peeled He defined matter as minute positive and rings from a 300 -year -old Douglas fir tree minute negative charges which cancelled out near Tucson, Arizona, found just what they when run together, "leaving a splash in the sought, a small, but unmistakable increased ether which spreads out as an electromagnet- deposit of radio -activity in the rings repre- ic wave carrying off the energy released.' senting the year of the Siberian explosion. To He believed the amount released so great them the rings proved one -seventh the energy that if we annihilated a single drop of water, causing the mysterious explosion was anti- we would be supplied with 1 5,000 watt -hours matter. for a year. And while, he said, we "covet"

The scientists who discovered the antineutron with the University of California Bevatron, the largest atom -smasher in the world: Bruce Cork, Oreste Piccioni, Glen Lambert - son, and William Wenzel. They are shown with one of the accurately calibrated magnet assemblies used in the experiments in which the antineutron was identified. This discov- ry was made in July- August, 1965, and followed by almost a year the discovery of the first antinuclein, the antiproton, by another research in the Berkley laboratory (above).

56 RALIO-TV EXPERIMENTER

www.americanradiohistory.com moment, and his equation described the hydrogen electron perfectly. The only problem Two views inside the tunnel of the one-half was, if his amazing equation was right, there mile circumference ring of the Alternating must be an undiscovered electron in the Gradient Synchrotron at the Brookhaven Na- universe! tional Laboratory at Upton, New York. Above, For according to his equation, the electron complex plumbing is used to determine energy must have two different types of energy protons spread of leaving the synchrotron. states, one positive, the other negative. Since Just above the head of the man in the foreground are steering magnets used for hori- the only electron we knew was negatively zontal and vertical deflecting of the pro- charged, his equation had to mean, there was ton beam. Right above, one of the 48 titanium an electron with positive charge! evaporation pumps and control console used Can't Be. As this interpretation seemed to maintain high vacuum in the synchrotron. downright heretical at the time, he searched further for another solution. Could the par- this vast power, there is little hope man may ticle represented in the equation be a proton? penetrate the secrets of its manufacture. But the particle had to have equal mass with Later he added, if the stars could learn, then a negative electron, and the proton's charge is man might in time. 1836 times as massive as the electron. Probing And he was right for it has taken many further, he found there must also be an anti- years to probe the secrets of matter versus proton, and that the universe should show a anti-matter. complete symmetry between particles and First Clue. In the late 1920's, a young anti -particles. mathematical physicist P. A. M. Dirac, was The Search Begins. When the young Doc- studying for his Ph. D., in the University of tor finally announced his revolutionary math- Cambridge, England. Mulling over an equa- ematical theories in late 1928, his findings so tion of his, one true both to the relativity startled the world of physics that scientists theory and quantum mechanics, that de- surprised the press with the first predictions scribed the behavior of the electron, he was of an anti -world made up of anti -particles suddenly startled. and anti -atoms. The next step was to catch He had only to fill in charge and mass of the elusive electron in the laboratory. the electron, and then the spin and magnetic (Continued on page 108)

BIG MEN IN THE SMALL WORLD OF ANTI -MATTER

DR. ROBERT A. MILLIKAN DR. CARL D. ANDERSON DR. EMILIO SEGRE DR. MAURICE GOLDHABER DR. LEON LEDERMAN Nobel Laureate Nobel Laureate Nobel Laureate Director Professor of Physics Physics, 1923 Physics, 1936 Physics, 1959 Brookhaven National Lab. Columbia University

JANUARY, 1966 57

www.americanradiohistory.com SI , -PLE

CODE

I.IUIIITUR

By Art Trauffer

Most of us send better code when we can closes the spring prongs of the old relay, ac- hear what we're sending. This code monitor, tivating the buzzer. which is entirely independent of your re- Monitor Mounting. Your transmitter key, ceiver or transmitter and has no electrical monitor spring contacts, buzzer and battery connections to any of your equipment, is are all mounted on a convenient surface; as quickly rigged up using only three main com- shown here, they were mounted on a 6 -inch ponents: first, a pair of prongs or reeds from square piece of 3/8-inch plywood. Prongs are an old phone jack, switch, or relay; secondly, mounted under the lever of your key close to a 3 -volt supply (two D batteries); and, final- the knob. A small piece of insulating material ly, a buzzer. is cemented to the top spring prong to insu- As shown in the photos and cross-section late it from the key. Adjust the monitor below, the monitor is actuated by the lever of prongs so that they make contact just before your regular transmitter key. While the reg- the transmitter key contacts; then wire mon- ular key operates your transmitter, it also itor in series and start sending!

The knob of the telegraph key at the right is removed to show how the key actuates the insulated top spring prong to make contact with the bottom prong, thereby completing buzzer circuit. Size of insulating blocks, below, is determined by height of the key.

INSULATOR CEMENTED TO PRONG

KEY SPRING PRONGS FROM OLD RELAY, PHONE JACK, ETC. 3V CONTACTS PogRMCPALÑY -

INSULATING BLOCKS (3) j. PLYWOOD (CROSS SECTION)

58 RADIO -TV EXPERIMENTER

www.americanradiohistory.com SAFE WIRING INDI TOR

An easy -to -build $2 gadget that'll let you know for sure how safe a three -wire outlet is!

Would you spend two dollars to make a polarized to prevent dangerous shocks. But small neon indicator that might save your what happens when you go to a neighbor's life? Simple to build and even easier to use, or relative's home to do some work? Or the Safe Wiring Indicator will point out safe maybe you are a professional repairman or and unsafe AC outlets before you discover carpenter doing some remodeling. How are them the hard way. As you know, homes you to know that the receptacles that you and factories are being wired with grounded plug your power tools into is wired correctly? electrical outlets. This means that you have How It's Done. If you have one of my the two regular blade openings plus a round Safe Wiring Indicators you can plug it into opening in each electrical outlet. The round the outlet you want to use and if both indi- socket is wired to a ground wire that goes cator bulbs light it is safe to go ahead and from each receptacle and metal box back to use the receptacle. The Safe Wiring Indi- a ground rod at the meter box or to a water cator can answer one of six possible ques- pipe. There is also a brass screw in each uions: outlet that is supposed to connect to the black wire and a white nickel screw that is sup- 1. Has the receptacle been wired cor- posed to connect to the white wire in the rectly? Romex or other wiring cable used. 2. Is the black "hot" wire open circuit? Some communities have laws that prevent 3. Is the white wire open circuit? a homeowner from doing his own electrical 4. Is the ground wire open circuit? wiring. Fortunately, I live in a small com- 5. Are the black and white wires re- munity where I can add to my own house versed? wiring without interference. I know that my 6. Are the black and ground wires re- receptacles are wired correctly and thus are versed?

JANUARY, 1966 59

www.americanradiohistory.com ,,,1,,,,1,,,,,1,1,1,.1,111111,11,,,,,,,,1,,,11111,,,,1111111,,,,,,,,,,,,,,1,1,1.11,,.,,,111,1,,,11,,

SCHEMATIC DIAGRAM

BLACK

NEI NE2

WHITE BLACK R2 47K GND WHITE

BOTTOM VIEW GND

PARTS LIST NEI, NE2 -Neon indicator (Econoglow Type 1 17 -Red, Allied Radio 7EE900, or equiv.) RI, R2- 47,000 -ohm, 1/2 -watt resistor 1- Plastic case for mounting relay (Allied Radio 75P55B or equiv.) 1 -AC plug, three terminal (Amphenol 160-11) Misc. -Sleeving, screws, sheet metal, solder, etc.

Estimated construction cost: $2.00

Estimated construction time: 1 hour

sll11111111.11111111111111111111111111111111111111 11 0.,, ,.,1111. 11 11111111111111111111111111111111111011111111M1111111111111111111111111111.1 Completed indicator unit shown plugged into AC outlet. Neon bulbs are at top of case. model cement may be used to lock them into place. Use 47,000 -ohm, t -watt series resistors to make the neon bulbs burn brighter. Since the neon bulbs will only be lit briefly, their life should be practically forever. Use Since mounting plate for 3 -wire AC plug is sleeving on all bare wires to prevent shorts. not readily available, it can be made from You can paint the inside of the plastic case sheet metal using dimensions shown here. with black model paint to hide the interior wiring. Once the Safe Wiring Indicator is finished either test it by plugging it into a properly wired outlet or by using clip leads connect it to a conventional wall outlet and the ground to a nearby cold water pipe. If the indications are correct (refer to the chart) you can put it away until you need it to test an un- familiar electrical outlet.

INDICATOR LIGHTS CHART

Explanation of indication Light No. 1 Light No. 2 Wiring is safe to use On On Black wire open Off Off You can refer to the Indicator Lights Chart White wire open Off On Ground wire open On Off for the proper light sequence. This is all Black and white reversed On Off done by two neon bulbs with series resistors Black and ground reversed Off On wired to a grounding type AC plug. To make the unit convenient to use the parts are CAUTION! There are two things this de- mounted in a plastic case adapted to plug vice won't tell you: into any grounded electrical receptacle. It 1. When the white and can be "whipped" together for about $2.00 ground wires are reversed. This or less in an hour's time. The indicator will isn't too important since in give you a lifetime of protection from im- most cases the white wire is properly wired electrical outlets. grounded at the meter box any- Making It. The mounting plate for the AC way. plug must be made since no known company 2. Whether or not the ground supplies one ready made. The neon bulbs wire is in place at the meter on plastic lenses can be pressed into %2 -inch box. A visual inspection will diámeter holes. If necessary, a few spots of soon verify this fact.

60 RADIO -TV EXPERIMENTER

www.americanradiohistory.com transistorizedTRF amplifier stag=e Give your crystal detector rig half a chance to pick up DX stations by pepping up the input soup with a one transistor selective RF amp

by Art Trauffer

Want an extra boost of performance from 3/s -inch plywood and located as shown in your crystal radio? This tuned RF amplifier Fig. 3. The 409 mmf variable capacitor, C3, is the perfect new front end for your crystal is mounted using small angle brackets. Use set. There have been many construction short screws to secure the brackets to C3 so projects for crystal radios, many of which the screws don't touch the rotor plates. The include one or more stages of transistorized ferrite core coil, L1, is mounted on the back audio frequency amplification to boost the of C3 using a strap of insulating material signal after detection. But this transistor- such as fibre, plastic or cardboard. Details ized tuned radio- frequency amplifier stage of winding the coil will be given shortly. will boost the signal before detection. This Transistor Q1 is mounted on a 3 -lug makes it possible to use a shorter antenna terminal strip by its own leads. Remember or just plain be ahead of the game before the heat sink when soldering the leads in the signal is detected. place. Use long nose pliers if you don't Matching Components. The amplifier have a heat sink. The battery can be quickly stage was breadboarded to match the Allied and easily mounted between two angle Knight -Kit crystal set shown at the right of brackets that act as its holder. A neat trick the amplifier in Fig. 1. Simplicity was the to even get around the need for a switch to rule in building the amplifier which gives cut the battery out of the circuit is to insert good results with only a 1.5 volt battery. The a piece of insulating material between the battery is connected in the circuit as shown negative end of the battery and the angle in Fig. 2. bracket (see Fig. 4). The components of the amplifier are Roll Your Own. The drawing of Fig. 5 mounted on a 6 -inch by 41/2 -inch piece of shows you how to make the ferrite core coil,

JANUARY, 1966 61

www.americanradiohistory.com 11.111111,,,1,1,111,111111111111111,1,111,1,,,,11,,,,,1,,,11,110, ,,l,,.,,1111111,111,1,,,,,,,,,111111,111111,,,,,..

1C2 FC3 PARTS LIST o 02 33K TO ANT POST ON 81 -1.5 -volt battery CRYSTAL RADIO FCl (SEE TEXT) C1, C2 -.02 mf, 200 -volt capacitors Radio ANL BI 1.+5 V C3-409 mmf variable capacitor (Allied .ce 01 IJ - DS-25 13L524 or equiv.) TO GND. POST ON 4Ó9MMF Sl L1- Self -wound ferrite core coil (see text) CRYSTAL RADIO i; F2 (SEE Q1 -RF amplifier transistor (Delco DS -25, La- TEXT) FC4 GND fayette 1984220, or equiv.) R 1- 33,000 -ohm, I/2 -watt resistor Simple? You bet it is! Only one tuned cir- S1 -See text cuit is used to eliminate tracking error. 1 -%" x 6" x 41/2" plywood base board Transistor 01 is not critical. Almost any pnp Misc.-Fahnestock clips, terminal strip, pointer lugs, Litz wire and %" ferrite unit rated at 2 mc., hfe 10 will do the job. knob, solder rod text), scrap sheet metal, hardware, Aside from units given in parts list, the (see fol- hookup wire, solder, etc. lowing may be used for 01: 2N247, 2N252, 1 2N274, 2N308 -310, 2N315, 2N370 -374, Estimated cost: $6.00 2N384, 2N501, 2N504 and other pnp rf units. Estimated construction time: 2 hours

.,.! #Bx81ñ8 - r.1 881181 C2

4' -- 65 -70 TURNS Photo above illustrates breadboard layout sjjl moillinu! used by author. At left, piece of cardboard 8 fold IÌII !IIIII!IIIIIPILII!jljlljjjj1111 Ullll is used as switch to disconnect battery.

L1. The coil works fine as an RF coil and ( you can also use it as an antenna coil in an- TO C3 TO Q1 I TO C3 other project. A length of 10 -38 Litz wire STATOR COLLECTOR FRAME and a Mt -inch diameter ferrite core was used FIGURE 5 in this project, but alternate materials can be Detail drawing of fabricated coil L1. Make used. For example, Belden 7 -41 Litz (La- no substitutions and follow plan carefully. fayette 32G1485) can be wound on .33 -inch ferrite core (Lafayette 32G6102). Or sim- form the RF-tuning tank in the collector cir- ply use No. 26 enameled cotton -covered cuit of Ql. The collector is tapped close to magnet wire instead of Litz. Note from Fig. the ground end of the coil to better match 5 that the first 10 turns of the coil are close - the transistor's low output impedance; this wound while the remainder of the turns are gives better selectivity. Capacitor C2 blocks slightly spaced. Use Duco or coil cement to DC and passes the amplified RF signal to the hold the wire at the ends of the coil and to antenna post of your crystal radio. secure the twisted tap to the collector of Q 1 As with a crystal radio, this RF amplifier from the tenth turn on the coil. works best with a good ground and a good Circuit Operation. The antenna input to outdoor antenna. TRF amplification can be the amplifier is through capacitor Cl which increased a bit by using two AA batteries in blocks DC and passes RF in case your an- series to provide 3 volts. Keep polarity in tenna accidentally contacts a power line. mind when wiring the circuit: the Delco Resistor R1 is the base bias resistor for tran- DS -25 used in the project is a pnp transistor sistor Ql. Coil Ll and variable capacitor C3 so negative terminal goes to the collector.

62 RADIO -TV EXPERIMENTER

www.americanradiohistory.com Of . . . .

WHAT AND WHAT NOT'S OF TV SERVICE CALLS

BY H. E. HOLLAND

ne,

tOOD'1rv SE evi "I finally got that antenna strapped to the chimney."

1fi

"Why not try carrying that tool caddy with your right hand for awhile ?"

"I hate to charge you anything ... your husband told me mostly what to do."

"It all started when it was just a kit."

"It's a Japanese receiver Mr. Cates .. . yes, operator, give me Yokahama, Japan."

JANUARY, 1966 63

www.americanradiohistory.com selection. What you do have to look for is a pickup that's really suited to the particular use you have in mind. And while you're looking around you may have to sacrifice The some notions about the virtues of the perfect pickup in favor of some practical considerations. Before we discuss those practical matters, let's take a brief refresher course in what cartridges do, and how they do it. ickup In the Groove. Unless you're a total stranger to audio, you probably already know that music on disks consists of complex wig- gles in the vinyl walls of the grooves. A pickup's stylus has to accurately follow the roblern groove's undulations -long and wide for loud bass notes, short and rapid for high by John Milder frequencies. Stylus motion is then translated into an electrical signal, again with as much precision as possible. Most of the time the job is done by making the cartridge a voltage generator. By rotating a coil in a magnetic field, twisting a tiny magnet between fixed coils, or flexing of a small ceramic element, an electrical signal is produced. There have been striking improvements One reason for the startling performance in audio components over the past few years, of today's cartridges is that converting stylus but stereo pickups have made the most dra- motion into an electrical signal has become matic progress of all. Today's cartridges not refined to the point where a stylus pushes an only help music flow more smoothly than almost weightless generating mechanism. ever from the record, but they keep its This allows stylus assemblies to be made grooves in near -mint condition through far more delicate and low in mass, with an dozens of playings. And they have just about increasing ability to follow the most subtle demolished the old contention that records twists and turns in record grooves. Because would have to give way to tape as the of low mass, today's stylus assemblies can be medium for real fidelity. made so compliant (free to move) that they The point is that you don't have to search can follow the widest swings produced in the warily these days for a "good" cartridge. groove by the loudest bass tones. At the same Among pickups you are likely to come across time, lower mass means a higher frequency in a hi -fi showroom, there is hardly a "bad" for the point where the stylus and the vinyl one in sight. Therein lies the problem of material of records resonate together. The

Grado Model B Grado Model A

Stanton 581

64 RADIO -TV EXPERIMENTER

www.americanradiohistory.com o .,,...,-_

higher the frequency where resonance oc- toloonnonoloon000tortoolmnonummoomooloononnoolomoonool000m000lmotonmonnonomoonononomorn000m curs, the less harshness or artificial "zingi- ness" in the sound of high frequencies. It also means less groove wear at high frequencies. Almost everything, from the material used in stylus assemblies to the polish put on diamond tips, has now been refined to an almost incredible degree. The job that some experts said couldn't be done -getting two separate stereo signals on the walls of a single Sonotone Velocitone groove -has become a ho -hum proposition. Today's avant -garde audiophile concerns himself with more sophisticated problems. Witness, for example, the lowest fashion in stylus tips: the elliptical. What's Up Front. According to persuasive theory, the elliptical tip is an important advance in pickup design. Because it resembles the wedge shape of the recording stylus used to cut master discs, it can "trace" the path cut by the original stylus better than can the conventional bail- shaped tip. And because Pickering V -15 Micro -Magnetic the elliptical combines a narrow area of groove contact with a broad frontal profile, it can be equally at home in the crowded squiggles of a stereo record groove and the fairly wide -open spaces of mono grooves. With this combination of virtues in its favor, it's hardly surprising that the elliptical tip can now be had -either as standard or optional -from practically every cartridge maker. But here is where we can begin to get a Empire 888P bit practical. Should you insist on an elliptical when it's time to buy a pickup? Not necessarily. Let's ignore the theoretical draw- backs that might balance the advantages of the elliptical. The important thing is that the elliptical's advantages, whether great or mar- ginal, apply only when a cartridge and stylus assembly can be kept in perfect theoretical alignment with record grooves. As soon as the elliptical shape is canted or tilted even slightly, those theoretical advantages disappear. In some cases, in fact, the tip becomes a menace to record grooves, with a leading edge that tends to bite into the groove like the cutter on which it's modeled. Ortofon SPU Thus, the problem is that it's almost impossible to install and maintain a pickup with that mandatory perfect alignment. If you do Today's cartridges are a far cry from manage to install your pickup perfectly in the old steel needle, crystal units that its shell (and the odds are overwhelmingly bore down on disks, causing premature against it), chances are it won't stay in align- wear and poor sound. New techniques, ment for very long -whether it's exposed to plus a better understanding of cartridge normal húman handling or the stress of a problems, have led to very light, high - record changer's trip mechanism. So much, performance models such as shown here. then, for the elliptical's still- disputed theo-

JANUARY, 1966 65

www.americanradiohistory.com retical advantages. Unless you're a relentless É = E perfectionist with automated fingers, you _ would probably be better off with a conventional non -elliptical cartridge. Fallacy of the Absolute. Theory and practice also come into combat on other fronts. Take the matter of a pickup's compliance. So much attention has been paid to compliance as a specification that many au- Dynaco Stereodyne Ill diophiles use it as the index of comparison between cartridges, automatically assuming that the pickup with the higher figure in front of that mysterious "10 -6 cm /dyne" rating is the better performer and therefore the better choice. Not so. Even if you assume -as you shouldn't -that the cartridge with a compliance of 10x10 -6 cm /dyne has the edge in performance over one with a figure of 9x10 -6 cm /dyne, you don't know whether it is more suited to your particular needs. If you intend turn- ADC Point Four to use the cartridge in an automatic table, very high compliance can mean that the stylus will not be able to stand up to the stress of the automatic trip mechanism over a long period of use. Or if you're going to use the pickup in an older or less -than- compliant stylus may buckle after only a few feather -gentle record changer, the super - plays. It makes sense, then, to modify your ex- pectations of "pure" specs and start looking at the less glamorous matters that may count more in the long run. First of all, let the record -playing gear you intend to use decide Shure VIS the general category you will pick from. (See cartridge chart.) If you're going to use an older -style or inexpensive record changer, make your choice from the rugged pickups designed to stand up to casual handling. If you have a newer, more expensive automatic turntable, you can pick from the "Auto Turntable" or "General" categories on the chart, or -if you know that your tone arm and automatic trip mechanism are suit- ably gentle -one of the premium pickups designed for single -play turntables. If you use a single -play transcription table, you can a premium, perfectionist pick- /T choose either Orto fon SPU up or -if you're not concerned with cat's - whisker fidelity or if you know there will be Modern, high -quality cartridges are re- some casual handling by others -any of the markably comparable in performance lesser, more rugged categories. characteristics. The user, however, Are You Playing? Another matter among the What should make a careful choice is the kind of record in the text, to consider carefully available units, as discussed If you put nothing but a cartridge that best matches you intend to play. to secure LP's on your his own requirements; for example, the newest in mono and stereo either changer or automatic turntable. turntable, you don't have to think about any - (Continued on page 110)

RADIO -TV EXPERIMENTER 66

www.americanradiohistory.com PHONO CARTRIDGES

STYLUS RADIUS STYLUS MANUFACTURER MODEL TYPE (MILS) TYPE PRICE NOTES

AUDIO Point Four /E Induced .2/.7 E $60.00 DYNAMICS 660/E Magnet .2/.7 E 39.50 CORPORATION® 770 .7 R 29.50 809/E .2/.7 E -

DYNACO Stereodyne II Moving .5, .7, R 17.95 Integrated arm- cartridge Iron 3.0 assembly available Stereodyne III .7 R 19.95

EMPIRE® 888P Moving .6 R 21.95 15' vertical tracking 888PE Magnet 2/.9 E 32.95 angle 880 .7 R 17.95 880P .6 R 19.95 880PE .2 '.9 E 29.95

EUPHONICS CK -15 -LS Semi- .2/.9 E 55.00 Integrated arm -cartridge conductor assembly available CK -15 -P .5 R 30.00

GRADO A Moving .3/.9 E 49.50 "Twin Tip" truncated Coil stylus B Semi- .6/.3 R under$20 conductor or E

ORTOFON SPU /T Moving .6 R 50.00 Available premounted in Coil shell for Ortofon arms SPE /T - E 75.00

PICKERING® 380C Moving .7 R 11.76 V-15/AC-2 Magnet .7 R 17.95 V-15/AT-2 .7 R 19.95 V-15/AM-1 .7 R 21.95 V-15/AME-1 .25/.85 E 29.95

SHURE® M -44 -C Moving .7 R 17.95 15' tracking M7 /N21D Magnet 3 R 17.95 M55 -E .2/.7 E 35.50 15' tracking M80-E .2/.7 E 38.00 V -15 .2/.7 E 62.50 15' tracking

SONOTONE Velocitone Ceramic .7/3 R 23.15 Turnover stylus with sec - Mark IV and LP- Stereo tip or 78 tip

STANTON 581 -EL Moving - E 49.50 1.0 and 2.7 mil stylus 581 -AA Magnet .5 R 49.50 available

WEATHERS 1LDM Ceramic .7 R under $20 For Weathers arm only

Legend: -in ®Plug stylus assemblies available for Mono LP's and /or 78's. E = Elliptical stylus. R= Round (conical) stylus.

JANUARY, 1966 67

www.americanradiohistory.com

The young meteorologist in the noisy com- M M munications room on the third floor of the U.S. Weather Bureau's National Weather Satellite Center in Suitland, Md., squinted nervously at the clock above the compact bank of electronic machines. It was two minutes after 10 A.M. The shiny red phone ' in his hand emitted a . high -pitched squeak. . cet Behind him lights flashed above a row of somber black telephones, direct lines to Cape Kennedy, Fla.; Fairbanks, Alaska; the Na- 11'"INI tional Hurricane Center in Miami; and NASA headquarters in Washington, D.C. Around him a serious group of men checked

68 RADIO -TV EXPERIMENTER

www.americanradiohistory.com Russian weather map (see facing page) received at U.S. Weather Bureau in Suitland, Md. via weather circuit. Above left are Dr. Robert M. White, Chief of U.S. Weather Bu- reau, and Dr. J. Herbert Hollomon. Above is electronically drawn weather map received at National Weather Satellite Center in Suitland. At left, U.S. Weather Bureau checks voice conditions on Washington- Moscow weather line. The 5000 -mille link can carry voice, photos, maps and telegraph signals.

the electronic scanner machines steadily roll- were technical negotiators who took part in ing off weather maps, while facsimile spe- the talks leading to the establishment of the cialists scanned the keys of their machines, recently completed U.S. -Soviet direct weath- preparing for instant action. er circuit. Suddenly it came: It is no common telephone line through "Hello, Washington . . hello, Wash- which this international "weatherese" flows ington. . . . This is Moscow. Professor Bu- three times a month. Instead, Johnson and gaev is here." Bugaev talk directly through a series of in- As the crackling tones of a Russian in- terconnected wireline and cable channels, terpreter 5,000 miles away in the Central operating 24 hours a day from the U.S. Forecasting Institute in Moscow faded Weather Bureau's national nerve center in through the speaker, the U.S. Weather Bu- Suitland through London, Frankfurt, Berlin, reau's sandy- haired Arthur W. Johnson, Warsaw, and on to the Central Forecasting Manager of the Operations Division of the Institute. national Weather Satellite Center, picked up Most Americans are aware of the Pen- the receiver and began what undoubtedly is tagon -White House Hot Line to Moscow the longest "person -to- person" conversation designed, in cases of dire emergency, to keep held regularly these days between Washing- the President in quick touch with the Soviet ton and Moscow. Premier in case of emergency. Few, how- Weather Over Moscow. The voice at ever, realize that a weather line exists. An the other end of the line belonged to his important step forward in the United Na- Russian counterpart, stocky, white- haired tions' three -year -old master plan to strength- Victor Bugaev, Director of Russia's Central en world weather service and research, the Forecasting Institute, a four -story yellow line itself has been an actuality since October stone building on the grounds of the Acad- 1, 1964, when RCA Communications, Inc., emy of Sciences in the heart of Moscow. prime contractor in establishing the circuit, Since November, 1964, these two men have turned it over in working condition to the talked every 10 days for periods of 15 to 40 U.S. Weather Bureau. minutes on the widely varied scientific topics Although the Johnson -Bugaev conversa- involved in modern weather analysis. tions are mere preliminary checkups on the Both principals in these conversations international exchange, weather information

JANUARY, 1966 69

www.americanradiohistory.com CAPE KENNEDY

Phone on left connects the U.S. Weather Bureau's National Weather Satellite Center in Suitland, Md. with the Central Forecasting Institute in Moscow.

has been steadily flowing over the line since shrewd academician Professor Anatoli Bla- October 25, 1964. It is transmitted by four gonravov that the Soviet Union should hook 1 different modes -voice, facsimile, photo- up to the weather line. graph, and telegraph. Thus, the most tech- Dr. Dryden gladly shares credit for initi- nical cloud -cap data and maps, charted cour- ating the project with Dr. Francis W. Reich - tesy of the U.S. family of TIROS weather elderfer, retired Chief of the Weather Bu- satellites, could be speedily flashed to Russia reau. Dr. Reichelderfer, with the late within minutes of their reception at the Dr. Harry Wexler, pioneered the initial idea Satellite Center in Suitland. on the American side with his chief of re- As of December, 1964, the line has search. NASA's capable Arnold Frutkin, worked smoothly, but only conventional Assistant Administrator for International weather data have been reciprocally ex- Programs, also played a major part in the changed on the regular daily schedules. It long -range negotiations. is hoped that satellite information will flow Both Dr. Hollomon and Dr. White agree back and forth in the near future, according that the most difficult part of the negotiations to Dr. J. Herbert Hollomon, Assistant Sec- was reaching agreement for the payment of retary of Commerce for Science and Tech- the weather line. Both countries share equal- nology. ly the expenses that are approximately $26; Establishing the Line. Dr. Hollomon, 46, 500 a month. like his Chief of the U.S. Weather Bureau, All principals on the American side share Dr. Robert M. White, 42, is one of the new President Johnson's initial hope that other breed of young scientist-engineer adminis- member nations of the World Meteorological trators currently holding key posts in govern- Organization will eventually receive data ment. Since joining the Bureau on October transmitted over the new weather link. 1, 1963, Dr. White has been serving as The President gave the first official word Permanent Representative of the United of the new exchange at a press conference States to the World Meteorological Organiza- on October 24, 1964. tion, a specialized U.N. agency. Both he and "I am happy to be able to announce that Dr. Hollomon lent official enthusiasm and we have reached an agreement with the Soviet administration know -how in the final stages Union for the exchange of weather informa- of the U.S. -Soviet agreement. tion between Moscow and Washington," Top credit for negotiations, however, be- Johnson commented. longs to the distinguished American scientist ". . . We know," the President continued, Dr. Hugh L. Dryden, Deputy Administrator "that the new link, when in operation, will of the National Aeronautics and Space Ad- be a substantial step forward in speeding ministration, whose continued persuasiveness the transmission of valuable weather data in as technical adviser to the U.S. representative both directions. The American weathermen on the U.N.'s broadly based 28- nation Outer and the American public will immediately Space Committee finally convinced Russia's (Continued on page 111)

EXPERIMENTER 70 RADIO -TV

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www.americanradiohistory.com DX'ing the Vanishing Breed By Tom Kneitel, K3FLL/W B2AAI

Police operating frequencies have been soaring they're up to 450 mc! But here's the story on pulling in those low frequency boys still around!

Time was when anyone with a communi- broadcasting band, and 2500 kc /s). That cations receiver could pass the time of day was then, but not any longer. by listening to his local police dispatcher. Today the police stations have all but Federal Communications Commission rec- deserted the low frequency bands, fleeing to ords indicate that at the end of 1947 there the use of frequency modulation on bands were almost 700 police base staticns operat- at 30 mc., 150 mc., and t shudder!) even ing on low frequencies (between 1600 kc /s, 450 mc. To hear the high frequency stations the high frequency end of the standard you require a specialized frequency cover-

JANUARY, 1966 73

www.americanradiohistory.com age FM receiver, a critically measured vertical antenna, and a good location. At best, these high frequency stations can communi- cate for thirty or forty miles, Hit'm Low. But wait, we said that the police stations have all but deserted low frequencies. There is still a handful of hearty stations clinging to these channels -true, they diminish in number each year, but they are still there-today numbering less than 100. They still make fascinating listening, they can easily be heard throughout all of North America (using no more than a fair receiver and a hunk -of -wire antenna), and

of red. T.* .st eentlro yew r.c.ption i+ MU, °`T4^-t 1tZP°T° e-.". with tM YmAr tXt 'Cation. ' to{ at ' .

Above are some members of the "dying breed;" these QSL's are from some of the police stations working LF. Lieutenant Edward Gibbons, commanding officer Boston Police Division 8, maintains direct communication with police boats using either marine or police radio channels. Below, several police officers maintain communications with the patrol cars working out of Nassau County Police Head- quarters in Mineola, Long Island, New York.

74 R Ao 10 -T V EXPERIMENTER

www.americanradiohistory.com most of them will QSL your reception DX'ing accomplishments, we offer you a reports. All you need to DX the "dying detailed guide to the remaining low frequen- breed" is the information on who and where cy police base stations, together with a check - the stations are; and to QSL them you'll box reminder for when stations have been need a few "inside" tips. heard and then when the OSL has been The beauty of DX'ing these stations is received. that, with a modest amount of time and SWL Late Show. The best time to listen effort expended, it is possible to hear and for these stations is late at night, especially verify just about all of these stations. Which during the winter months. Forget about the other radio service offers you such a fighting whole thing during daylight hours, nothing chance to reach such an appetizing "end of happens until around sunset. The whole band the road" -3,900 broadcasting stations? swings right on through the night until dawn. 250,000 hams? 800,000 CB'ers? Just let your receiver "sit'.' on a single To aid you in keeping track of your (Continued on page 109)

Police Radio Stations operating Between 1600 -2500 Kc.

Freq.(kc.) Call City State Agency Freq.(kc.) Call City State Agency

1610 KMA224 San Rafael Calif. CP KKD489 Waco Tex. MP KMA518 Napa Calif. CP KKD490 Houston Tex. MP KMA862* San Rafael Calif. CP KMA793 Needles Calif. CP KMA994 Crescent City Calif. CP KMA795 San Bernardino Calif. CP KMG688 San Rafael Calif. CP KMA943 Pasadena Calif. MP

1618 KIC358 Knoxville Tenn. SP 1722 KMA213 Davis Calif. MP KIC360 Chattanooga Tenn. SP KMA866 Westwood Calif. CP KIC361 Jordonia Tenn. SP KMA867 Susanville Calif. CP KIG264* Tenn. SP KMA910* Sacramento Calif. MP KUA210 Wailulu Hawaii CP 1626 KQA698 Elkins W. Va. SP KUA212 Lahaina Hawaii CP KQB569 S. Charleston W. Va. SP 1730 KMA367 Los Angeles Calif. MP 1634 KOA303 Reno Nev. MP KMA785 Los Angeles Calif. MP KOA726 Carson City Nev. KM A992 * Los Angeles Calif. MP KOB220 Fallon Nev. CP KQB358 Wilmington Ohio SP KOB221 Ely Nev. CP KOB872 Elko Nev. CP 2366 KMA785 Los Angeles Calif. MP KOB893 Lovelock Nev. CP KMA786 Los Angeles Calif. MP KOE525 Yerington Nev. CP KMA787 Los Angeles Calif. MP KM A992 * Los Angeles Calif. MP 1658 KED784 Corpus Christi Tex. SP KMM577 City Terrace Calif. KKC784 Calailen Tex. SP KKD303 Austin Tex. SP 2382 KSA765 Oshkosh Wisc. CP KK1412 Amarillo Tex. SP KMA539 San Leandro Calif. CP 2414 KKE370 Clovis N.M. MP KMA846* San Leandro Calif. CP KM A789 Tulare Calif. MP KMA848 Santa Rita Calif. CP KMA858 Merced Calif. CP KMA934* Martinez Calif. CP 2422 KEA317 Freehold N.J. CP 1682 KCA999 Concord N.H. SP KCB538 Lancaster N.H. SP 2442 KMA361 Vacaville Calif. MP KDZ367 Stratham N.H. SP KMA583 Indio Calif. CP KMA785 Los Angeles Calif. MP KMA878 Banning Calif. CP KMA787 Los Angeles Calif. MP KMA879 Blythe Calif. CP KMA807 Newhall Calif. SP KMA880 Riverside Calif. CP KQA739 Saginaw Mich. MP 1690 KMA788 Sacramento Calif. SP KWA216 Tok Junction Alaska MP KMA797* Calif. SP KW A217 'Glenn Allen Alaska MP KMA799 Grass Valley Calif. SP KWA218 Anchorage Alaska MP KMA800 Willows Calif. SP KWA219 Fairbanks Alaska MP KMA802 Vallejo Calif. SP KW A233 Fairbanks Alaska MP KMA803 Alturas Calif. SP KW A237 Palmer Alaska MP KMA805 Oroville Calif. SP K W A238 Valdez Alaska MP KMA962 San Francisco Calif. SP K W A239 Seward Alaska MP K W A629 Kenai Alaska MP 1706 KQA398 Cincinnati Ohio MP KWA746 Anchorage Alaska MP KW A747 Fairbanks Alaska MP 1714 KCA281 Revere Mass. MP K W A797 Third Division Alaska MP KCA692 Newton Mass. MP K W A862 Homer Alaska MP KCA955 Newton Mass. MP KKA463 Longview Tex. CP 2466 KMA438 San Francisco Calif. MP KKB364 Dallas Tex. MP KKB840 Texas City Tex. PM 2490 KMA790 El Centro Calif. MP KKC355 Victoria Tex. CP KMA824 San Diego Calif. MP KKD297 Dallas Tex. MP KMA938 Orange Calif. CP

JANUARY, 1966 75

www.americanradiohistory.com Reason for computerizing the cops was simply that no-one could get a bird's -eye view of crime as it happened in the big city on a day -to -day basis. Too many reports to digest, let alone read. Mountains of statis- COMPUTERS tics prove useless unless they can be inter- preted with speed and accuracy. vs. Which, of course, is why any computer exists. As shown in these photos, the electronic brain gobbles up data on every complaint, arrest, traffic accident and crime for each 24 -hour period. Then it scurrys CRIME through the material at incredible speed, comes up with a clear, over -all picture of -respecting burglar Time was when any self what's happening throughout the city. The for a dark night, could get a set of tools, wait computer can spot shifting trends or spot a Sure there were then head for a second story. fast -developing pattern in crime which might by the family dog, hazards -being bitten otherwise go undetected for days. caught in tripping an alarm, maybe getting Armed with this information, the cops what's happening in New the act. But if now know where to beef up forces or to de- budding burglars York City is any indication, ploy them for maximum prevention effect. the IBM computer. may soon have to out -fox Who knows? The familiar "Hands up" may brand of electronic games- For in the newest be replaced by a punch card titled "Appre- help tell the police manship, computers can hended by Automation." where the action is.

Process begins (top right) as operators punch IBM cards with police information gathered from local precincts during a 24 -hour period: arrests, complaints, accidents, etc. Computer console (above) enables operator to control data flow through the system. Operator may feed several information sources simultaneously and check that every pertinent fact is turned into readable information. At right, computer prints out reports at the rate of 600 lines per minute. Reading the report is Sgt. James F. Mooney of the New York Police Department's data processing staff,

RADIO -TV EXPERIMENTER îEi

www.americanradiohistory.com Pistol- packin' cop, trained by IIBM, now operates console which stores information on reels of magnetic facie. This is (just one section of a computer installation worth $300,000. Filing cabinets (bellow rights contain over 150 data processing programs.. Since computers can't really think for themselves, programs provlìde instructions for handling the data.

Girl at desk (upper left) is tape librarian, keeps track of some 500 reels of magnetic tape loaded with crime. Close -up of tape -reel cans at left is in "Arrest' section. Tapes record information from punch cards. Length of the tape is 2400 feet, with every inch accommo- dating 556 characters. Thus a total of 5 million characters per tape provides storage for much data. Above, a programmer is devising a new set of instructions for the computer to follow. His chart is a logic diagram with which the computer will, hopefully, prove that crime won't pay.

77 JANUARY, 1966

www.americanradiohistory.com CIO By C. M. Stanbury II Propagation Forecast December 1965 /January 1966

This time around we have again included Asian reception available to them. With all our semiannual Peak Reception Chart. After eyes on that Vietnam conflict, Asia has be- looking it over, undoubtedly the most star- come the SWL's number one target-no tling discovery you'll make is that tremen- matter where he lives! dous advantage enjoyed by western SWL's when it comes to Asiatic reception. In fact, North America Peak Reception Chart it's more startling than the chart shows. East Coast West Coast PST, Far During the period 0000 -0600 Stations from I (EST) (PST) East reception in western North America bands Asia (except Near 0600 -0900 1800 -0800 will not only be possible via those East) 1800 -2100 shown on the main chart but is also feasible -2100 1500 -2100 75 and 90 meters. True Europe, Near East & 1500 all the way down to Africa (N. of Sahara) these bands require a little more effort, how- Africa (S. of Sahara) 1500 -0100 1500 -2200 ever, you will be rewarded with a better selection of DX. South Pacific 0600 -0900 1800 -0800 1800 -2400 On the other hand, EST and CST listeners should not neglect those two peak hours of Latin America 1700 -0700 1600 -0500

1 2

2 4

LISTENER'S o o 0 0 r r 11 II. 11 11 11 It te_

STATIONS FROM... 31 19 25* ASIA (except 4(31) -(49) _*4-25, -(19 -* 31F(19, 25) *±l9) Near East)

EUROPE, NEAR 4-31,41 -**-31 -*E- 19--4- 16,19- )-E -25- -* E 31 --* EAST & AFRICA (poor) (N. of theSahara)

AFRICA (S. of the 49 --). 4 Nil E- 16. 19 -3- E- 25 -4.4E- 31-0. E- 41 -* Sahara) (60) (60)

19 4-19 25 -44 SOUTH PACIFIC E--- 31 * E -25 --* E- 25 t 4- -* -* E- (poor) (poor) (19)

I 49, 60 4- 49 4-25, 19 4- 25-* 49,60, 90 LATIN AMERICA 4- -) * -) E- -3 (31, 60)

To use the table put your finger on the region you want to hear and og, move your finger to the right until it is under the local standard time you will be listening and lift your finger. Underneath your point- ing digit will be the short-wave band or bands that will give the best DX results. The time in the above propagation prediction table is given in standard time at the listener's location which effectively compensates for differences in propagation characteristics between the east and west coasts of North America. However, Asia and the South Pacific stations will generally be received stronger in the West while Europe and Africa will be Easy to tune on the east coast. The short -wave bands in brackets are given as poor second choices. Refer to White's Radio Log for World -Wide Short -Wave Broadcast Stations list.

78 RADIO -TV EXPERIMENTER

www.americanradiohistory.com RADIO -TV EXPERIMENTER aA3 CHECK

KNIGHT -KIT KG -625

6 -Inch Peak-to -Peak

Vacuum Tube Voltmeter Kit

While the VOM is the mainstay instru- with built -in voice control uses multi- vibra- ment in most shops-whether hobbyist or tors. professional -for serious experimental or So the modern VTVM, in addition to rep- service work a vacuum tube voltmeter resenting a high impedance to DC circuits (VTVM) is a must have. For example, take must also be capable of measuring complex a simple thing such as aligning an AC /DC AC waveforms from peak to peak such as radio. The proper way to do the job is to shown in Fig. 1. And that brings us to feed in an unmodulated RF signal and then Knight's newest VTVM, the KG -625 avail- peak the IF and RF circuits for maximum able in kit or wired form. AVC voltage. But the AVC bus is at the Basically, the Knight -Kit VTVM is like least 500,000 ohms above ground, and trying any other, utilizing the (simplified) circuit to measure the AVC voltage with even a shown in Fig. 2. VI is a twin triode amplifier. 20,000 ohms /volt VOM would result in se- With no signal present R1 is adjusted so the rious loading of the circuit; for even if the plate voltages on both VI a and V 1 b are identi- VOM was set to the 50 -volt range the VOM cal. Since there is no voltage difference no would represent a load of 1 megohm, seri- current can flow through meter M1 and it ous loading for even a 500,000 -ohm bus indicates zero. When a positive voltage is ap- (and most AVC busses are about 2.5 meg- plied to VI a's grid, thereby increasing VI a's ohms above ground). Or how about trying plate current, the voltage drop across R2 in- to measure the bias on an audio amplifier; creases, the voltage at the plate falls, and a vacuum tube's input impedance is very now, since there is a difference between the high; again, using a VOM would result in two plate voltages current flows through M1 serious loading. and we get our reading. When a negative The proper way to measure voltages in high impedance circuits is with a VTVM, Fig. 1. Most VTVM's respond only to sine since the common service type VTVM has voltage waveforms (A) and meter indication an input impedance for DC measurements does not hold true for waveforms in (B). of 11 megohms -and rare is the typical cir- Knight's KG -625 reads true peak -to -peak volt- cuit that will be loaded with 11 megs. ages and interpolates AC to true rms values. More to Consider. But electron- modern A ics has another measurement problem - whether you're working with tubes or transistors. Years ago, the average equipment handled only sine- waveform -no problem for any service instrument. But today, with B TV receivers as the perfect example, the average household equipment processes complex- waveforms; square waves, sawtooths, or etc. Why even the modern tape recorders

JANUARY, 1966 79

www.americanradiohistory.com RADIO -TV EXPERIMENTER CHECK voltage is applied, which would cause M1 to read downscale, the VTVM's function switch simply reverses the meter polarity ( -DC Volts) causing the meter to read upscale. The voltage doubler shown in Fig. 3 is switched in between the probe and the range switch for P -P AC measurements. Actually, while we show the solid -state diode symbol the VTVM uses a dual diode vacuum tube. Cl is the DC blocking capacitor that al- Fig. 2. Meter M1 reads zero in bridge cir- lows AC to be measured in the presence of cuit with zero input -DC input upsets balance. DC. When the positive going part of the AC CI C2 D2 waveform passes Cl, diode D1 conducts, + to full positive peak value. r charging C2 the AC When the negative going pulse follows, diode INPUT TO I RANGE SWITCH D2 conducts and both the negative pulse and + DI C3 the voltage stored by C2 charges C3 to the full peak -to -peak voltage. The voltage across C3 is applied to the range switch and hence to the VTVM. In earlier VTVM's a standard Fig. 3. AC input circuit is actually a simple half -wave rectifier was used instead of the voltage doubler that charges P -to -P, not rms. doubler and the VTVM could only indicate rms values. tion really indicates true peak -to -peak. The The Extras. While the basic circuits are average rms indicating meter does not give common to all service grade VTVM's, it's a true picture of what's taking place with the refinements, particularly in the DC cir- complex waveform. For example, an rms cuit that makes the KG -625 a strong con- reading meter would indicate a 10 volt P -P tender for a position on your test bench. square wave as being only 3.54 volts rms. But The KG -625 as normally supplied covers the KG -625 actually responds to and is cali- the range from 0 -1500 volts full scale; an brated in P -P; in our example it would indi- optional high voltage probe extends the cate 10 volts P -P. It is the meter calibration range to 25 KV full scale. For ease in tran- which interpolates P -P to rms. for sine -wave- sistor servicing the bottom range is .5 volts form (voltages such as when measuring line full scale. Since this allows a minimum voltage). reading of .01 volts there's never any prob- The ohmmeter has 7 ranges to 1000 meg- lem discerning the minute difference between ohms, with 10 ohms and its multiples at cen- voltages common to transistor circuitry. ter scale. The AC rms ranges are similar to the DC The KG -625 utilizes the so- called "labora- ranges with the exception of the .5 volt scale tory styling." The cabinet is horizontal with -the AC ranges start at 1.5 volts full scale. an oversize 6 -inch meter having notably (Common to all service grade instruments.) clear and contrasting calibrations. An extra The big difference here is that the AC func- heavy duty gimbal bracket allows the meter to be placed on a bench or mounted on a wall; it can even be hung under a shelf. Thumb screws lock the meter in any desired position after the gimbal is positioned. Putting One Together. The kit version is easy to build, even for the newcomer to instrument construction. Except for the func - (Continued. on page 134)

To insure zero -set stability on all ranges, input lead must be routed free of all other leads.

SU RADIO -TV EXPERIMENTER

www.americanradiohistory.com RADIO -TV EXPERIMENTER 10 CHECK

LAFAYETTE HB -600

CB /Business Band

Solid-State Transceiver

Let's be frank, as far as noise limiters go delta tuning to compensate for the received CB transceivers are still back in the early station being off center -frequency, Public 1940's, or at least they were until the Laf- address facility and a vari -tilt bracket. ayette HB -600 came along. Consider for In Comes the Signal. Okay, you've a moment what CB is: it is a mobile radio waited long enough, we'll get to the receiver. system located in perhaps the most noise - The receiver is double conversion with a prone frequencies. Auto ignitions, genera- mechanical filter that delivers outstanding tors, fluorescent lights, motors and a host selectivity. With a bandwidth of only 3 kc. of other annoying and irritating pops and 6 db down it is virtually impossible for a crackles; yet, what was served up as noise signal on an adjacent channel to interfere limiters even in the most expensive trans- with the channel you're monitoring-pro- ceivers?- that's right, the same old shunt, viding the adjacent channel is not splatter- or series, or half or full wave noise limiters ing due to overmodulation, this would cause described in the Radio Amateur's Handbook interference on any receiver. twenty years ago. Though the IF bandwidth is exceptionally What CB needed was a noise limiter that narrow the received audio quality is quite actually eliminated the noise, rather than good, received signals are not "muddy "; this just reduced an intolerable grind into a is due to frequency correction in the entire slightly tolerable grind. Now you have it, audio system. Though the cabinet is all throw the noise limiter switch on the HB- metal, and small, there is virtually none of 600 and you've heard your last pop, crackle the "boxy" sound common to small speakers and snap. in small metal cabinets. Behind the Front Panel. The HB-600 is Sensitivity is very high, less than 1 micro- an all transistor (solid -state if you will) CB volt for a 10 db signal plus noise -to -noise transceiver that not only covers all 23 chan- ratio (the standard reference). nels but has built -in facilities for either the It is in noise reduction that the HB-600 proposed H.E.L..P. channels or two business really triumphs. First, there is a standard band channels. No modifications are re- noise limiter which by itself ,is notably good, quired for either service. In addition to the reducing the severest of mobile impulse usual 23 channels on the dial (both transmit noise to tolerable snaps and pops. Then there and receive) there are ,A and B positions. is an RF noise silencer that removes all im- When H.E.L.P. finally gets off its rear end pulse noise. See the block diagram. all you have to do is plug in the appropriate Kicking out the Noise. The antenna itself crystals. Or, if you feel you'd like to retain receives a broad range of frequencies, the advantages of CB yet enjoy the clear - among them the desired 27 mc. signals. channels of the Business Band (located right Noise, which is rather broad in frequency above the CB band), again, you just have distribution is also present in the antenna; to plug in the appropriate crystals and a noise present at 27 mc. also exists at 25 mc. single transceiver serves on two distinct The HB -600's input circuits splits the an- bands at your option. tenna signal, feeding the 27 mc. signals to The minor features are more or less stan- a standard RF amplifier and the 25 mc. noise dard equipment on high quality transceivers. pulses to it's own RF amplifier -a filter net- An S -meter which doubles as an RF output work keeps the 27 mc. signals out of the meter calibrated in "Watts Output," a phone noise amplifiers. The noise is amplified and jack for headphones or a remote speaker, then rectified; the resultant DC pulse, which

JANUARY, 1966 81

www.americanradiohistory.com £I3 CHECK

corresponds to the noise pulse is then further amplified. The amplified pulse is then applied to the receiver's second mixer which is also a noise gate. When no noise pulses are present the noise gate is open and the output of the second mixer, 455 kc., is fed to the IF amplifiers. When a noise pulse is received, it's amplified DC pulse is applied to the noise gate which cuts off the mixer, thereby "punching a hole" in the mixer's The HB -600 rig sports separate PC's for re- output. For a very short duration, about ceiver, transmitter and audio-all solid- state. 10 microseconds, no signal gets from the mixer to the IF amplifier so no noise pulse come out of the speaker. Because of the Another silencer advantage is that it short duration of the control pulse the makes the squelch completely noise -immune. "holes" are not detected by the human ear. Since squelch circuits generally control Performancewise. The noise silencer audio amplifiers following the detector, does not make it appear there is an absence strong noise pulses can trip the squelch. of noise. While there is no pulse noise Since there are no noise pulses in the HB- present there is a slight steady hiss. And 600 the squelch trips (releases) only when if the hiss level (noise level) is stronger than a signal is received. the received signal quite naturally the hiss One aspect of the silencer must be called does interfere with the signal. But the mar- to your attention to avoid complaints when ginal signals, which are above the noise none really exist. When the silencer is level but which were obscured by the im- switched -in the audio level appears to drop pulse noise, are now completely readable. -at first it appears to the receiver's sensi- Essentially, for 90 percent of CB communi- tivity has been degraded. Actually, this is cations noise interference when using the not so. Since the silencer punches "holes" RF silencer simply doesn't exist. in the mixer output it's signal level is some- We should like to point out that while what reduced in terms of the audio output. Lafayette makes no claims for the silencer This is normal. All that's required is a slight other than for mobile type impulse noise, advancing of the volume control -the HB- we found the silencer highly effective against 600 has plenty of reserve audio gain -to interference from fluorescent lights, SCR return the speaker volume to normal. speed controls, photoflood SCR regulators, Similarly, if the delta tuning-2.5 kc. motors, sewing machines and the oil burner. above and below the center frequency -is While it is true that the sewing machine and switched in, there might appear to be a oil burner did break through the silencer we reduction in audio level. This will occur if could still understand relatively weak sig- the Delta tuning is used when the received nals -which is more than we could do with signal is actually on center channel -you the silencer off. (Continued on page 134)

NOISE 08 09 NOISE NOISE SELECTOR E OISE NOISE HI Block diagram shows signal CIRCUIT AMP RECTIFIER PULSE AMP AMP flow in the RF silencer circuit. Noise selector circuit picks off

lNETWORK 1 noise on 25 mc. -same noise AlNOISE LIMITER 03, 04 SWITCH heard on CB band -then uses NOISE B this noise to "punch holes" GATE t Sc End NIRER RFOANP IM LIMPKER 62MC 455 KC into the CB sound output when 456 KC IF AMP random noise pulses occur. TRANSMIT/ REC RELAY RF NOISE SILENCER

82 RADIO -TV EXPERIMENTER

www.americanradiohistory.com the ``' Hoffixer -" By C. M. Stanbary, II

Or how, for me, QSL swill always stand for Quick, Slick, Lady from slippery SWBC Station, WWWW!

Everyone knows that R. Q. Smith is the world's worst hoaxer, at least all those DX clubs which count know it. Like once he reported that the Voice of America and Radio Peking had worked out a special program exchange, then at the last moment announced that the deal had been cancelled. Or there was the time Radio Moscow operated a relay station in Mississippi. So yours truly, Michael Tanner, wrote an editorial, a real blast in our club bulletin, "Short -Wave Age," which not only brought me plenty of publicity but got friend R. Q. (Radio Questionable) black -listed. In fact, so much did this editorial do for my reputa- tion, I was contacted by America's newest short -wave broadcast station, WWWW. They wanted me to provide them with weekly DX scripts. Station WWWW, operating from Comet - land, supposedly the world's longest midway, would be a real break. It planned a brand new SWBC format. No classical music, no news and no propaganda. In fact nothing but rock'n'roll and DX tips. With this programming it promised to rate number one with the world's SWL's. And if I became the DX director, it would really put me on the short -wave map. So I negotiated long and hard with WWWW's program director, Sandy Robin, all the time plugging their station in "Short - Wave Age." But at the last moment a hitch developed-they were seriously considering somebody else. You guessed it. They were considering R. Q. Smith! Too much! I gathered up all that doc- umented evidence I had against him and come the weekend, headed for Cometland. I hit town at two in the afternoon, located

8,, JANUARY, 1966

www.americanradiohistory.com a phone booth and promptly called their box ?" office. "Sure." Got up, went over to the stand "WWWW, Wonderful Wacky Watt and returned with a box for each of us. Waves," a cool feminine voice answered. "Thanks." She finished R. Q.'s Missis- "May I speak to Mr. Robin please. This sippi report, put the documents down, opened is Mr. Tanner of Short -Wave Age." her box, set it on the bench between us and "You're speaking to Miss Robin." Crisp. resumed her inspection. "Are all these re- Took me off guard -"The program di- ports hoaxes ?" rector?" "Oh, no." Tasted my popcorn, too salty. "That's right. And I'm afraid we've pretty "Smith throws in a lot of good stuff so he well made up our minds." won't be spotted right away." I pushed on. "I brought some documenta- "Like this item from 1963 where he re- tion with me, samples of Mr. Smith's work ports a new SWBC station planned for Corn- that might change your mind." Hesitated, etland." She held up a piece of popcorn, lost my nerve momentarily. "Will you at studied it. least look at them ?" "Yes, but he lists Cometland as a country, The silence indicated she considered it. not just a resort on the Great Lakes." Like "All right, we do want to be sure. But the Perry Mason. heat in this office today is really something She looked at the report again, nodded. else. Why don't you meet me in the park "Yes, he did do that." where there's supposed to be a breeze." "There's more than one way to create a Figured I had it made. "Okay, where ?" hoax." Pushed the knife into R. Q.'s back My evidence was irrefutable. a little further. "You can take some perfectly "In ten minutes, by the merry-go-round." legitimate news item and add some wild "Crazy, you'll know me by the big brown details. For example, a rebel station hidden envelope." in Yemen . . . broadcasting for the French She hung up and I headed into the mid- and English." way. In addition to that documentation She came to my QSL's. "What are these ?" (juicy clippings from DX papers) the enve- "Looked over her shoulder with pride. lope also contained some of my prize QSL's. "Proof that I am a legitimate DX'er." To prove I was a bonafide DX champion. Softly, "And a good one." She admired Radio Nord's card displaying the "pirate" them one by one, with the other hand kept ship from which it operated, Radio Dili on working on that box of popcorn which was Timor with palm tree, clouds and hut, Radio now half empty. "How long have you been Brunei featuring the Sultan's palace. All at it ?" those QSL's for which I had really sweat. Could almost taste that DX program. "Ten I found the merry- go-round in five min- years, since my 15th birthday." utes, took a seat in front of it and waited. She set the cards on her lap. "I am dying Behind me were the roller coaster and Ferris of thirst. Would you get me a coke ?" Shook wheel. I killed time by watching coaster cars her head. "All that popcorn." crawl to the top, then come charging down, I looked around. like some DX'ers. "Behind the Ferris wheel." She took an- "Mr. Tanner ?" She put herself down be- other look at my card from Brunei. side me. Mousy with glasses but a nice Spotted those coke and orange crush signs. figure. When she wasn't all business, she "Okay." I moved out, circled the big wheel wouldn't be bad at all. and stopped dead. In front of me was a "That's right, Miss Robin." A soft breeze gadget to test your body electricity. But this came off the lake. one was different, a dummy radio tower "And what is it you have that will change which would light up for the right person. our minds about Mr. Smith ?" Atop the tower those call letters "WWWW" "These!" I opened the envelope and pro- which a really mighty body charge would duced the clippings. "I'm sure you wouldn't also light. want this kind of stuff going out over An idea began to gnaw at my insides and WWWW.,, yours truly's Perry Mason sixth sense flashed Miss Robin took the package and began "H- O -A -X ". I sprinted back to the bench. thumbing through it carefully. "There's a She was gone and the envelope empty, except popcorn stand just to our left." She mo- for a note which read, "Never trust a lady tioned with her head. "Will you get me a hoaxer. Sandy Robin (alias R. Q. Smith)."

84 RADIO -TV EXPERIMENTER

www.americanradiohistory.com RECEIVER POWER COMMAND SOPPIY

One way to pile up $ urplus $avings on the road to SWL'ing is to build this supply for a vintage receiver By Herb Friedman, W2ZLF

Most everyone knows there are great sav- IF amplifiers Command receivers are essen- ings to be had by re- working surplus gear. tually alike. The only problem is that many of the surplus While each receiver covers only a single wonders require extensive modifications band, five models cover the spectrum from which are often beyond the capabilities of 190 kc. through 9 mc. Aside from the broad- the experimenter. But there is one area in cast band this range includes the FAA low which the experimenter can literally mine frequency, weather broadcasts, marine ship - gold, and the mine is called "Command to- shore, 80 -and 40 -meter amateur bands, Receivers." and the popular SW frequencies. The Command line consists of a series of Command Receivers receivers and transmitters used through Model World War II by the military. While the Army JAN Ronge I.F. FREQ. transmitters are of little use to other than BC-453 R-23 190-550 kc. 85 kc. radio operators, the receivers are BC-946 R-24 520-11500 kc. 239 kc. amateur N.A. about the cheapest path to short -wave listen- R-25 1.5-3 mc. R-26 3-6 mc. 1415 kc. ing. BC-454 BC-455 R-27 6-9.1 mc. 2830 kc. The Receiver Circuit. The Command re- for the 3 to ceivers are one band superheterodynes with As shown, the IF frequencies high, and selectiv- a line -up found in most medium priced 9 mc. receivers are rather considers equipment: RF amplifier, mixer, two IF am- ity is just passable. But when one cost less than plifiers and audio output. A typical Com- that a Command set -up can inexpensive mand circuit is shown in Fig. 1; except for twenty bucks it's a heck of an the L -C (tuned) circuits used in the RF and way to enjoy SWLing. 85 JANUARY, 1966

www.americanradiohistory.com ++ e oñBce

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z 0 / 86 RADIO -TV EXPERIMENTER

www.americanradiohistory.com Socket 501, shown at left on power supply, mates with the plug you wire into receiver.

While the receivers are called "Command' can be used -it's not extremely critical. receivers it is the joint Army -Navy models, Plate transformer Ti can be any power or 450 the ARC -5 series, which are commonly plate transformer rated from 400 to available today; so the schematic shown in volts center tapped (200 or 225 volts either 40 ma. or higher. Don't Fig. 1 is that of an ARC -5 model. side of center) at Super -Selective Conversion. We should use a higher voltage than 450 CT as the not overlook the fact that Command receiv- receiver's internal filter capacitors cannot ers have value other than for listening. The withstand excess voltage. If you're using a 190 -550 kc model is otherwise known as the power transformer cut the filament leads famous Q -5'er. The 85 kc. IF frequency of short and tape them, making certain the ends this Command model produces fabulous don't short circuit. (The filament leads of selectivity. If the receiver could be coupled T1 cannot be used since the filaments in to another receiver, even of the budget type, Command receivers are series- parallel con- the overall selectivity would equal the per- nected for 24 volts; and it's easier to use a formance of receivers selling for several 24 -volt transformer than rewire filaments.) hundred dollars. And that's exactly what you can do. Since the Command unit tunes 190 PARTS LIST budget receiver IF -550 kc. the common C1 -8 mfd., 450 -volt capacitor frequency of 455 kc. falls right in the tuning C2 -20 mfd., 450 -volt capacitor range. All that's needed for a super- selective CRI, CR2- Silicon rectifiers, 750 PIV minimum Radio 1984203 or equiv.) is to connect the (Lafayette double conversion set -up 50 ma (see text) transformer of L1 -5 henry, ARC -5's input to the last IF R1- 270,000 -ohm, 1/2 -watt resistor the communications receiver-it's as simple R2- 25,000 -ohm linear potentiometer with as two quick solder connections. And some- s.p.s.t. switch R2) can avoid soldering by just plac- S1- S.p.s.t. switch (see times, you S2- S.p.s.t. toggle switch ing a short length of wire connected to the $01-Octal cable socket (see text: "Connecting ARC -5 input near the receiver's detector. the ARC- 5'er ") the Power Supply. All Com- T1 -Plate power transformer (see text) Just Build filament transformer controls are external, so all T2 -24 -volt, 1.0- ampere mand receiver (Olson Electronics T -290 or equiv.) that's required to get these receivers on -the- T3 -50L6 output transformer (Lafayette Radio air is a plug -in power supply which also con- 3383701 or equiv.; see text) the speaker, BFO shut -off switch and 1 -3.2 -ohm speaker tains chassis box (Premier 1 -5" x 7" x 2" aluminum a gain control. ACH -426 or equiv.) The power control center -which we'll Misc.-Terminal strips, perforated speaker grill, call the ARC- 5'er -is shown in Fig. 2. To line cord, panel marking, hardware, hookup to absolute rock- bottom wire, solder, etc. keep costs down receivers usually found in NOTE: Connector plugs for Command we've selected components are generally available for $1.50; spin tun- the mythical junk -box or which can be ob- ing knobs for $1.00, from Fair Radio Sales, tained at very low cost. 2133 Elida Road, Lima, Ohio, 45802. While the unit shown is built on a 5 x 7 x Estimated cost: $ 9.00 Estimated construction time: 5 hours 2 -inch aluminum chassis virtually any layout

87 JANUARY, 1966

www.americanradiohistory.com Area behind power plug, left, is tightly packed. Above, BFO oscillator is adjusted.1 Silicon rectifiers CRI and CR2 must be socket and substitute an octal plug -not a rated at least 750 PIV (the rule of thumb socket. Carefully reconnect all the internal for full -wave power supplies is PIV equals wires to matching pins. For example, if the at least 3 times the RMS voltage). The cur- receiver ground was connected to socket pin rent rating can be anything above 250 ma. 1 connect it to octal plug pin 1, etc., etc. Transformer T3 matches the relatively This way your schematic will still be correct. high audio output impedance of the ARC -5 This plug substitution is the only receiver to the low speaker impedance. Most Com- modification that might me necessary. Once mand receivers are designed for listening with the power center is plugged -in, the receiver a 4000 -ohm or 8000 -ohm headset, so the is ready for operation. Naturally, the connec- matching transformer is necessary for a tions to the power center's matching connec- speaker connection. However, don't spend tor must match the connections on the too much for a matching transformer; an receiver. inexpensive AC /DC radio output trans- Using the Receiver. The power is applied former which can usually be purchased for via SI, which is part of volume control R2. about fifty cents is adequate. Some Com- R2 is actually an RF gain control, there is mand receivers have an optional 500 -ohm no audio gain control per se. S2, when closed output; if yours is so equipped you can use deactivates the BFO. an inexpensive transistor output transformer The Command receiver's antenna input is with a 500-ohm primary for T3. designed for long wire antennas, so just con- Any 3.2 -ohm speaker is. Suitable for the nect a long wire to the antenna terminal on ARC -5'er. The inexpensive 2 -inch replace- the receiver's front panel. If you utilize ment type is recommended as its opening coaxial lead -in connect the center conductor can be easily cut with a standard multi -size to the antenna terminal and the shield to the hole saw. nearest cabinet screw. Command receivers Choke Ll can be just about anything have a front panel antenna trimmer which you've got around; if it came out of 117 -volt, compensates for any detuning to the receiv- 60 -cycle equipment and is rated at least 40 er's front end by the antenna. Simply adjust ma. it's okay to use it. the trimmer for maximum signal or noise Connecting the ARC -5'er. The Command level. receivers have two unusual connectors on While there is no BFO pitch control on the rear apron. The plug on top is for the the front panel, Command receivers have an dynamotor power supply which clipped onto adjustable BFO. the receiver. Since the full B+ will be avail- Located on the right side of the chassis is able on one terminal, wrap the plug with a small hole -the only hole -which is the several layers of tape. Unless you're highly access to the BFO pitch control. You can skilled at servicing don't try to remove the either adjust the control with a small screw- plug; it's almost impossible to avoid destroy- driver, or you can cement a small shaft to the ing several under -chassis - components. The control. power socket is on the rear apron. Matching We'd be less than honest if we didn't point plugs are not generally available, though you out that volume is not outstanding. Com- should always check with the dealer from mand receivers were designed for head- whom you purchase the receiver. If you phones, so in the conversion, while the cannot obtain a matching plug remove the speaker volume is adequate, it's not loud.

88 RADIO-TV EXPERIMENTER

www.americanradiohistory.com RADIO-TV EXPERIMENTER Q CHECK

H. H. SCOTT LK -60

80 -Watt Solid -State Stereo Amplifier Kit

While the trend has been to simplified set of terminals on the rear apron is for di- stereo re- equipment -to the point where a rect connection of a second set of speakers, its mono ceiver is no more complex than as example, Patio speakers. To switch to counterpart -many audiophiles still have the remote speakers the user simply flips a need for greater flexibility than that offered panel mounted slide switch -no external by one or two controls. The serious audio- switching unit is required. phile often needs extra inputs to accommo- What's Watt. The amplifiers are rated at date accessory equipment, greater control 30 watts rms (steady state, sine -waveform) over record defects and perhaps even remote, at less than 1 per cent distortion and checked semi -automatic speaker switching. Not to out as such. Either 4 -, 8- or 16 -ohm speak- leave out precise speaker balancing and ers can be used. Rear apron switches cor- sound source orientation. rect the feedback for 4- or 8 -16 -ohm speak- Just such control flexibility is offered in ers. The speaker circuits are fused with fast Scott's solid -state stereo amplifier kit LK -60; acting instrument type fuses accessible from yet it is all done with virtually no jumble of outside the cabinet. controls and switches. The overall frequency response with the The Ins and Outs. The LK -60 accom- tone controls in the indicated flat position is modates a total of five inputs: magnetic shown in Fig. 1 on the next page. By juggling phono, tape head, tape preamp and an aux- the tone controls the amplifier's response can To for conven- iliary- labeled "extra." allow be made flat within 1 db. ient setting of the volume control and to in- Fig. 2 shows the effects of the rumble and sure proper operation of the loudness com- scratch filters. Generally, with modern turn- pensation a three position attenuator is tables the rumble filter isn't needed. On the associated with the magnetic input; the other hand, a scratch filter is particularly switch is normally set to the position which corresponds to the pickup's output voltage. with the If it isn't known, the main volume control The light bulb, connected in series power transformer for an initial check of your is set to the 12 o'clock position and the phono wiring, is a unique power -on -test feature of kit. sensitivity switch is set to the position that results in average room volume. A tape output is provided for simultaneous tape recording. A tape selector switch on the front panel allows the amplifier to be used as a monitor during simultaneous recording if the recorder is a three head model with built -in preamp. The output circuit offers virtually the maximum in flexibility, all determined by a single switch: stereo, reverse stereo, mono, left input to both speakers, right input to both speakers, both right and left signals to the left speaker and both right and left signals to the right speaker. Not enough? Okay, even remote switching is built in; an extra

JANUARY, 1966 89

www.americanradiohistory.com L2 CHECK

Nice front panel feature is REMOTE -MAIN Preamp section of amplifier (left rear corner) is switch for selecting either set of speakers. covered and isolated from power amplifier.

useful on well worn records (the ones you and output drivers is done at the factory. simply won't replace). The LK -60's scratch All the user does is connect the appropri- filter is particularly good. Note that severe ate connecting leads to the printed circuit high frequency attenuation doesn't start till boards. The heat sinks and their compo- after 5 kc., thereby leaving a good part of nents, used for the output transistors, are the sound while removing most of the noise also factory assembled. The remainder of -superior to just dumping everything above the wiring which is mostly switching leads 3 kc. and controls isn't a problem as there's plenty The overall sound to the ear is very good, of room, with no parts jammed into tight having the solid "body" common to transis- corners. tor amplifiers. The instruction manual is Scott's typical Test Bench Views. Assembling the Scott style, full -scale pictorials with wiring LK -60 is the next best thing to buying it shown in the actual color codes. In terms wired as it's not really a kit-it's a semi -kit. of assembling and using the amplifier the The really critical, difficult, and notably bor- instruction manual is very good- beginners ing chore of assembling the printed circuit will attest to this. In terms of servicing the boards used for the preamps, tone controls (Continued on page 137)

-I-4 SCOTT LK -60 +2 Fig. 1. Frequency response curve plotted with tone con- o trols centered shows response TONE CONTROLS CENTERED boosted less than 3 db at 20 2 AT INDICATED FRONT PANEL cycles. Adjustment of controls POSITION gives flat response within 1 db. I I I 20 50 Klo 200 500 IK 2K 5K IOK 20K

o SCOTT LX-60 Fig. 2. Response curve with 5 both filters in circuit shows at-

10 tenuation. Rumble filter will drop 20 cps mush from that old TONE -15 CONTROL CENTERED (FLAT) turntable (that you haven't re- RUMBLE SCRATCH FILTERS IN 6 placed yet) down 22 db. Good 20 scratch filter doesn't give sharp 25 dump of signal above 3 kc. 20 50 Klo 200 500 IK 2K 5K 10K 20K

90 RADIO -TV EXPERIMENTER

www.americanradiohistory.com TEST AUDIO OSCILLATOR

Tiny audio oscillator provides steady signal needed for testing audio amplifiers in high fidelity, ham or CB gear!

By Herb Friedman

from using a One of the handiest items to have in an there's nothing to stop you experimenter's shop is an easy to set -up and larger board, nor will there be any adverse easy to use audio frequency (AF) test oscil- effects if you mount the oscillator in a metal lator; for when it comes to checking out or cabinet. servicing amplifiers, tape recorders, speakers The unit shown is built on a 2%6 x 3318- or just a home -brew throw- together circuit inch section of perforated phenolic board nothing beats having a steady signal you can (Perf -Board). This is a stock size so you follow from input to output. It sure beats won't have to do any cutting. Flea clips are going "woof test" and trying to read several used as terminal points and all wiring is kept meters at once. on the same side of the board. End -mount And of course, a steady signal is all that's capacitors -with both leads coming through generally needed to check out modulator the same side -are used to avoid large "wire breakdowns in CB and amateur transmitters. loops" which are prone to short -circuits. While a low distortion factory -built AF Mounting is Easy. Start construction by oscillator is always the best bet, they are pre- mounting the major components; volume expensive; and often the experimenter who control R4, choke L1 and battery B1. R4 has one isn't in the mood to bother with set- is a subminiature potentiometer with built -in ting it up. But, take out an hour or so, throw switch, Si; a standard size pot will crowd together a handful of parts-most of which the board and make assembly difficult. L1 you've probably got lying around -and you is a modified transistor output transformer; can come up with the Perf -Board Audio the modifications consist of cutting off the Test Oscillator, a low distortion AF oscillator primary center-tap and the secondary leads having an output frequency of about 1500 -only the blue and brown leads are used. cps at .2 volts. B1 is the miniature 9 -volt transistor radio If you want to cut costs to absolute rock - battery; it is held to the board by two wire bottom -less than $5 -build it just as shown, bands wrapped around the battery, passed without a cabinet; it will work the same with through holes in the Perf -Board and twisted or without a fancy cabinet. together under the board. Making One. The oscillator is a transis- If Q1's leads are cut shorter than I inch, torized Colpitts running about 1% distortion of if the soldering iron is rated more than with the specified values. No component val- 50 watts, use a heat sink such as an alligator ues are really critical so low- priced compo- clip on each of Q1's leads when soldering. nents can be used throughout. Nor is the Note carefully the polarity of C3 and C4; wiring layout critical, just as long as the if the polarities are reversed the oscillator parts are connected as shown you're virtually won't work. Also, do not substitute for the guaranteed the project will work. While specified Q1 unless you use a transistor which we've sort of squeezed everything together the *GE -2 is supposed to replace.

JANUARY, 1966 91

www.americanradiohistory.com Finished project may be used without a cabinet. Two audio output leads are at right, ending with alligator clips.

Carefully follow Ql lead layout shown in schematic and bottom view diagram. Bat- tery is replaced (right) by untwisting wire.

O GE-2 BOTTOM VIEW

SIGNAL OUTPUT TO ALLIGATOR CLIPS

,.,111111111111111111111111.1111111111111111111, .., ,111111111111111111111111111,111/1111111111111111111111,; PARTS LIST B1 -9 -volt transistor battery (Burgess 2U6 or Check the position of C2 equiv.) Cl and before C1- .25 -mf., 75 -WVDC micro -miniature ce- they are soldered into the circuit; make cer- ramic capacitor (Lafayette 99R6067 or tain C1 is connected on the battery side of equiv.) L1 while C2 is connected on the collector C2- .1 -mf., 75 -WVDC micro -miniature capaci- side -the oscillator might not work if their tor (Lafayette 99R6066 or 99R6069, or equiv.) positions are reversed. C3- 30 -mf., 12 -WVDC miniature electrolytic Any capacitors can be used as long as their capacitor (Lafayette 99R6084 or equiv.) voltage rating is 12 volts or higher. Voltage C4-2 -mf., 15 -WVDC miniature electrolytic values given in Parts List were determined capacitor (Lafayette 99R6043 or equiv.) L1-Miniature transistor output transformer, see by availability and low price. text for modification (Lafayette 99G61 23 or Finally, use two flea clips as tie pints equiv.) and connect the AF output leads: two short QI -GE -2 transistor (General Electric) lengths of wire about 6 inches long with R1, R2- 10,000 -ohms, 1/2 -watt resistor R3-4,700 -ohm, 1/2 -watt resistor alligator clips. If longer leads are desired R4- 50,000 -ohm, miniature potentiometer with shielded cable should be used. s.p.s.t. switch (Lafayette 32G7367) A Tip. The oscillator can be used with any S1-S.p.s.t switch, part of R4 equipment whose input impedance is greater 1 -Perf- Board, (perforated phenolic board) un- clad, 2 -7/16 x 3% -in. (Lafayette 19G3605 than 50,000 ohms. If it is to be used with or equiv.) lower input impedances, say 500 ohms, vol- 1 pkg. -Flea clips (Lafayette 19R3301 o ume control R4 should not be advanced equiv.) beyond the mid -position Misc. -Alligator clips, battery clips, wire, (thereby keeping at solder, hardware, etc. least 25,000 ohms series resistance in the oscillator's output circuit). Estimated cost: $5.00 o GE -2 replaces 2N112A, 113, 114, 123, 135, 136, 139, Estimated construction time: 1 hour 140, 2N247, 252, 273, 274, 2N311, 2N409, 410, 411, LI111111111111, 01111/ 1111111111111111111111111111111111111111, 111111111111111111111111111111111111111 412, 413A, 414A, 415A, 2N1284.

92 RADIO -TV EXPERIMENTER

www.americanradiohistory.com «

The 'ol incandescent bulb socket can find its way into the strangest places, and wind up making a lamp that outshines any you might find in the most exclusive of shops -and all for a saving of at least 90 percent to add to the bargain!

If you are a dedicated electronics experi- necessary to make an adapter to go from the menter, then you must have felt the pinch wide mouth jug to a lamp socket. A paper of pennies everytime you filled out a mail cup of the proper size to fit the jug opening, order blank supplied by electronic parts sup- was selected along with a piece of 3/s -inch ply houses. Sure, you can save cash by pick- outside -diameter pipe. The pipe was cen- ing up bargains, or taking the salvage route tered in the paper cup with about 1/2-inch by stripping old projects, scrap TV's, or even of thread extending out of the open end of raiding your mother-in -law's transistor port- the cup. The cup was then poured full of able, but there are other ways. Like the day dental plaster, plaster of Paris, or casting the better half said, "Hon, while you're down- compound. After a week of drying the plas- town today, pick up a TV lamp, but don't ter casting was given a coat of shellac and the go over ten dollars." top was painted with brown enamel that Good Lord, ten bucks! The rusty old matched the jug. wheels upstairs started to turn and it wasn't The plaster casting was then cemented long before I found a way to put better than into the open jug mouth with mastic cement. nine of that big bill into my pocket. This cement was left over from a mosaic tile The 01' Brown Jug. I spotted a large project. A brass lamp socket with a side cord mouth, stoneware, one gallon jug at an auc- outlet was screwed onto the threaded pipe tion sale and bought it for 25Ç. It was first with an eight inch harp being used to hold

JANUARY, 1966 93

www.americanradiohistory.com The " 'ol brown jug" lamp on the left was converted using the plaster adapter shown below. It is cast in a paper cup to fit the neck of the jug; then cemented in place. The lantern lamp on the right was converted to contain an electrical socket using the mounting trick shown below. The disc is cut to fit the old lamp you find while browsing

DISC 117-71711

SOLDER OR USE EPDXY CEMENT PLASTER CAST LAMP SOCKET POURED INTO A PAPER CUP.

- PIPE AT LEAST If BELOW SURFACE DIA. DETERMINED BY LAMP SIZE TOP VIEW

the shade. Be sure that the brass socket has A motor driven scratch wheel removed the ,a removable key (the on -off knob) so that balance of the rust. A final polishing by an ornate brass key can be used in place hand with steel wool produced a shiny, clean, of the bakelite one supplied. A burlap shade although somewhat pitted, railroad lantern. makes a perfect finish to the jug lamp espe- The glass chimney was in perfect condition cially when it is topped with a small brass and bore the name "Pennsylvania Railroad" spread eagle. A piece of felt should be glued molded into the glass. The steel wire frame to the bottom of the jug to prevent scratches was given a coat of flat black lacquer from when it sets on a desk or table. a spray can. A very simple adapter was The pipe, socket, brass key and shade harp made to hold the lamp socket as shown in can be purchased at the electrical hardware the drawing. It is a round metal disc with counter of your local five -and -dime or hard- a hole in the middle and also painted flat ware store. Check to see that the pipe threads black. If you can obtain a brass socket, into the socket before you buy. solder it into the hole. If your socket is Cashing In. Not much time went by be- aluminum, use epoxy cement to hold it in fore my wife's bridge group had big eyes, so place. The socket fits into the well formerly I got those wheels moving again. Why not occupied by the oil burner. An ornate brass go into the lamp business while waiting for key can be used here also. We used a 25- the mail order parcels? I did, and here is watt flame shaped bulb to stimulate a sale another idea that brought in a ten dollar bill. which took all of 30 seconds. A hanging lantern was made from an old Get Busy. If you electronics experiment- kerosene type railroad lantern. This lantern ers are a bit tired of run -of- the -mill projects was purchased at a farm sale for the magnifi- why don't you try your hand at making a cent sum of 10X. The lantern was dirty and lamp? Not only will you get a great deal of rusty and no one else even bid on it. It was satisfaction from designing and building a necessary to soak it for several hours in two lamp, but it will also put you in solid with different changes of household lye in hot wa- your wife when you present the lamp to her. ter to remove the dirt and most of the rust. Incidentally, thars gold in dem hills, too!

94 RADIO -TV EXPERIMENTER

www.americanradiohistory.com Build the Versameter

by Howard S. Pyle, W70E

Build this little gem for your ham shack. It's a wavemeter, field- strength indicator, phone monitor and milliammeter all rolled in one. It'll help keep signals clean and legal.

The other evening a timid knock sounded the next evening and between what odds and on the door of my basement workshop. I ends we could produce between us, we'd opened it to admit a recently licensed neigh- build a wave -meter which would insure him borhood novice radio amateur whom I had against another citation for the same cause. examined for his ticket. His woe -begone An Instrument is Born. The next evening look and general air of dejection led me to from his little collection and my rather ask, "Well; you look a bit down -in- the -mouth mountainous assortment of odds and ends Gene, what's biting you ?" He reached in his from years of accumulation, we came up pocket and silently handed me his first FCC with everything we would need for a simple citation, "earned" after only three weeks on little absorption type wave -meter with a pilot the air! The accusation was ". . . operation light bulb resonance indicator. In fact, a on an unauthorized frequency; 7466 kc!" cursory inventory of the collection of parts Wow! inspired the idea to go far beyond a simple Double Trouble. A little questioning soon wave -meter so we sat down, sketched it out produced the answer. He had carefully tuned and came up with what on completion we his oscillator to his crystal frequency . . . termed the Versameter in deference to its 3733, perfectly legal for operation in the great versatility. Wave -meter, field strength novice portion of the 3.5 -4.0 megacycle indicator, crystal receiver, (for phone moni- band. But it was pretty obvious that he had toring) pilot light and milliammeter for res- dipped his final at the second harmonic rather onance indicators (choice of either by panel than at the fundamental crystal frequency. switching), separate terminals for using the The fact that he had no replies to numerous milliammeter alone in other circuits, no plug - CQ's was pretty good confirmation that he in coils but all band -switching from 10 was very evidently transmitting on the second through 160 meters from the front of the harmonic but listening on his crystal fre- panel, truly a really versatile little gadget quency! with dozens of uses around the shack. All "Did you ever build that simple little ab- we lacked was the meter movement and Gene sorption wave -meter I sketched for you a few picked that up the next day. weeks ago ?" I asked him. "W-e-l-1, I was Putting It Together. The accompanying going to but I didn't have the right size photographs and circuit diagram will tell you variable capacitor in my `junk box' " came all you need to know to duplicate this little the reply. So, after a little lecture on taking instrument. Use any parts you have equiva- every possible step to insure legal operation, I lent to those we picked from our junk boxes suggested that he bring his junk box along -"spare parts box" is a better name. A little

JANUARY, 1966 95

www.americanradiohistory.com Front panel of Versameter, a multipurpose test instrument for the ham shack. Dials and switches are easily accessible to quickly select among the unit's various functions.

larger case to house the components and use to the band switch to take care of the full of smaller items such as using the mini- range. Should you build a Versameter and ature type of parts, will save space and find it necessary to pad the 'capacitor for the reduce crowding. We managed however to get them all in a 3" x 6" x 2" plastic meter PARTS LIST case. We cut a panel from a piece of scrap BPI, BP2- Binding posts C1 -100 mmf variable capacitor (Hammarlund bakelite; don't use a metal cabinet or panel APC -140, 6.7-140 mmf, or equiv.) or else you won't get any RF pick -up on the C2 -.001 mf. ceramic capacitor internal wave -meter inductance. C3- Midget trimmer capacitor (optional pad, We drilled all the holes and assembled the see text) CR1 -1N34A rectifier parts to the panel the second evening. The diode I1- Indicator lamp assembly and GE -49 pilot next night we wound the coil and calibrated lamp it with my receiver for the variable capacitor Jl- Standard closed- circuit phone jack we would use. Incidentally, this was a Ham - J2, J3- Insulated tip jacks (red and black) Tuning coil (see text: "Winding the marlund APC -140 which was a perfect fit ll- Coil ") M1 -0 -1 DC milliammeter ( Shunte 550 or inside the 11/4-inch mailing tube which we equiv.) used for the coil form. We modified the rotor Sl- Single -pole, 3- position rotary wafer switch portion of the capacitor slightly to provide (Lafayette 99R6177 or equiv.) a 1/4" shaft through the panel rather than the 52, S3- D.p.d.t. toggle switches 1 -61/4" x 33/4" x 2" bakelite case with front original screw -driver adjustment. panel (Lafayette Radio 19R2001 and We thought that we might have to pad the 19R3701, respectively, or equiv.) 80 -160 portion of the coil to get the full Misc.-Cardboard coil form (see text), dial plate for Cl, hardware, panel swing through both of these bands but it markings, hookup wire, No. 24 enameled wire, solder, etc. turned out that we didn't. Apparently there was enough added capacity and inductance Estimated cost (all new parts): $9.00 through bunching the tap leads from the coil Estimated construction time: 5 hours

96 RADIO -TV EXPERIMENTER

www.americanradiohistory.com J1 I1

CRI

BPS

J3 All componen+s mount behind front panel. At top is bulb, with tuning capacitor Cl at the bottom. Be sure to use Lt Cl a plastic case, not metal, to assure adequate RF pickup.

CRI ANT S3 BP2 C2 II 001 PHONES Cl R JI 67 -140 MMF C3

SEE i TEXT M1 Schematic. Tuned circuit BPI 80-160 S2 at left selects signal; CRi GND converts it to DC.

160 meter band, use one of the little screw- tuning the L/C combination of the Versa - driver adjustable padding condensers such as meter to peak signals at each end of each the Bud MT-833, 3 -36 mmf. This optional band. We came up with the following turns: pad is shown in the schematic diagram as C3; 68 turns of #24 enameled wire for the full its connections are shown by dotted lines. Or, length of the coil (17/s inches). This tuned if you have only infrequent occasion to check from 4050 to 1780 kc give or take a few on 160, simply connect a small variable ca- kcs. A tap at 4 turns from one end took pacitor across the antenna and ground termi- care of both the 10- and 15 -meter bands and nals of the Versameter externally. another tap at 12 turns from the same end, Winding the Coil. And now the coil; covered 20 and 40 nicely. The whole coil you'll want the specs on this if you duplicate is switched in for 80 and 160 and the band our Versameter. The coil form was a 11/4 - switch is so wired that the portion of the coil inch diameter cardboard mailing tube. We not being used on the 20 -40 and the 15 -10 calculated the turns required for the lowest settings, was shorted out. This will be clear frequency with the 140 mmf tuning capaci- from the wiring diagram. tor. After winding we checked this by coup- Checking It Out. On our third evening ling to the antenna of the station receiver and (Continued on page 131)

JANUARY, 1966 97

www.americanradiohistory.com Pilots, athletes, and students are just a few of the many people who are learning, increasing their skills, or just relaxing and viewing ...

VIA

VIDEOCAPE

by Mall P.91110110

"Roll your VTR" was an expression un- pre-recorded and being played back on tape. heard of ten years ago. Today it is a com- Videotape programming that has been dra- mand given daily by thousands of television matic, newsworthy, commercial, religious directors as a direct cue to an engineer to get and public serviceable, has made up the bulk his video tape recorder in gear. It signifies of electronic playback with which the general that in three seconds the contents of the tape viewing public is familiar. But today there will be transmitted as a videotaped playback are even more uses of Videotape in not -so- of a commercial message, a public service familiar applications. Some of them fall into announcement, or even an hour-long special categories that are as important, if not more program. so, than the areas of entertainment to which Beginning of the Reel. The commercial videotape has applied. programming of videotape took hold in No- lape Measure of Learning. In the sum- vember of 1956 when the average televiewer mer of 1959 the National Educational Tele- found it hard to distinguish between the live vision (NET) Radio Center purchased 43 version of Douglas Edwards with the News videotape recorders for installation in edu- and his polyester -based twin on videotape. cational stations across the country. This Today it is just as, if not more, difficult to marked the beginning of the first non -com- distinguish the live from the taped broadcast. mercial national tape network. It was ob- Technical advancements in tape quality and vious that educators were quick to realize the equipment standards have risen videotape potential of this audio /video facility from the performances to the head of the class to the start. It has already been reported that tele- extent that it is not worth gambling over vision.in the classroom has resulted in a gen- whether the preceding program was live or eral upgrading of teaching as a whole. Tele-

98 RAezo -TV EXPERIMENTER

www.americanradiohistory.com o'1... .

Houston Colt manager Paul Richards shows rookie Dave Adlesh replay of his swing.

Jet pilot watches a videotape playback of a carrier landing he made only minutes before.

vision has become a valuable aid which the number and types of applications with which classroom teacher can use to cover more ma- Videotape may serve our educational system terial for an ever -increasing number of stu- remain limitless, and probably always will. It dents. This does not imply, of course, that should even be considered that in the not too television will replace the teacher in the distant future you will be having your library classroom. However, lessons recorded on card punched for borrowing the latest Video- magnetic tape are always available when they taped version of a how- to -do -it course of are needed. They may be presented by the your choice. You will play it back through most able instructors and these instructors your television receiver; close ups and Video- can review and polish their presentations tape quality will make it as live as though you long before they are transmitted to the class- were standing directly in front of the instruc- room. Moreover, literally any kind of spe- tor's desk. Learning to fly, playing better cial material is readily incorporated into the bridge, beginning and advanced electronics, lesson-material from any source -either learning to play an instrument; even cooking, within or outside the school. Furthermore. could all come under a listing from thousands the completely live quality is retained in the of practical courses which might be placed televised image no matter when the lesson on tape. appears on the screen. VTR's Aweigh! In another area of educa- In essence, the VTR is extending the range tion -that of safety -experience with a of outstanding teachers, raising the quality closed- circuit television system has shown of their educational programs, accelerating that videotape recording can be effectively the learning process, and boosting the level of employed to increase the safety of jet air- achievement among students. To date, the craft landing and improve the proficiency of

JANUARY, 1966

www.americanradiohistory.com Family of commercial Ampex videotape recorders are shown by Ampex VP, C. Gus Grant. Background shows VR -1000 broadcast recorder; left foreground: all transistor VR -1100 recorder for small and medium TV stations; right foreground: VR -1500 portable recorder used for closed circuit shots.

At General Motors Institute, Prof. Robert Carter points out elements of good oral presentation technique. Students, management, and dealers use the Precision Instrument recorder in foreground to develop communications skills for sales presentations, personnel screening and public speaking. minimum Oi ,.uirs which presented an obvious drawback since the film could not be used for immediate debriefing of pilots. In addition, no permanent visual record of approach speed and other data board infor- nation was available. With the development of the PLAT system, the limitations of the standard gun camera were overcome. Video- tape recordings of landings, complete with audio recordings of conversation between the pilot and carrier landing personnel, could be played back within minutes of the actual operation. Heaving Deck. Lauding a jet with a touchdown speed of over 130 knots on a pitching 250 -foot -wide deck is a demanding task for both pilot and landing control personnel. De- pilots despjte the improved angled decks and veloped by The Ampex Corporation in con- optical landing systems of modern carriers. junction with the United States Navy, Pilot Installation of the PLAT system on U.S. Landing Aid Television (PLAT) is a com- Navy carriers has resulted in fewer incorrect pletely integrated system of electronic audio approaches, quicker assimilation of landing and video recording designed to moni- techniques by pilots, and provided indisputa- tor and simultaneously record aircraft land- ble accident investigation evidence. PLAT's ing operations from approach through final value in possible saving of pilot life cannot recovery under day and night conditions and be estimated in monetary terms. It is demon- to immediately play back the recording for strably evident, however, that the cost of the post -flight analysis and evaluation. PLAT system is minor compared to replace- In 1955 U.S. Naval aviation adopted two ment of even one aircraft. British innovations which virtually revolu- Essentially, PLAT is made up of four tele- tionized carrier landing procedures: the an- vision cameras in different locations aboard gled deck and the optical landing system. the aircraft carrier, connected to a closed - The third major improvement, PLAT, was circuit television system incorporating a introduced in early 1962 after the basic ele- Videotape installation to record and play ments were advanced by the Navy in 1959 back landing information. Two unmanned and trials conducted by Ampex in 1960 and image- orthicon cameras, connected to a mir- 1961. Prior to the introduction of PLAT, ror assembly and stabilized from signals gen- carrier landings and take -offs were recorded erated by the optical landing system, are in- on 16mm film. Processing the film took a stalled in a modified light-well on the flight

100 RADIO -TV EXPERIMENTER

www.americanradiohistory.com Seven stories above carrier deck, Navy cameraman, top, zooms in on landing jet. Se- quence of shots, left, was taken by other PLAT cameras. Technician on the Bon Homme Richard, above, adjusts recording system.

deck centerline. A reticle is fixed to the cam- terline cameras or the island camera. Forty eras to produce cross hairs on the televised feet above the flight deck a manned image - picture. A horizontal cross hair, bore- sighted orthicon camera (TV studio -type) picks up along the glide slope, identifies the on- course the aircraft as it passes over the centerline glide path. A vertical cross hair is aligned cameras. This camera zooms in for a close - to coincide with the centerline of the angled up and follows the arresting wire back to its deck and identifies the azimuth on- course sheaves to determine which of the four wires flight path. As the pilot sights the optical was engaged. If the aircraft bolters, the landing system and follows it down, the air- cameraman follows it as it departs the ship. craft is picked up by the centerline cameras. I.p.s. and M.p.h. After a mission is com- The aircraft's lineup with the cross hairs dis- pleted, pilots and landing operation person- played on the ship's monitor system align- nel can watch a minute -by- minute playback ment, attitude, and glide slope are shown on of the entire landing operation. Any errors a split screen in combination with the output in judgment or procedure can be pointed out of a data board camera. while the operation is still fresh. Details that A small vidicon camera is permanently may be near -impossible to remember are re- focused on the data board in the control created in their entirety on tape to lend room to record the date, time, wind velocity, authoritative reference to the hasty and often aircraft approach speed and "wave -off" sig- cryptic notes made during the operation. nal. This camera output is displayed simul- Later, the same tape can be used to help train taneously with the output of either the cen- new pilots long before their first carrier land-

JANUARY, 1966 1 01

www.americanradiohistory.com Coach Hank Stram had a television receiver stationed at the bench. Second string quarterback Eddie Wilson watched the screen at all times and called for replays of the action as it was requested by the coaches. Replays of two punts which were almost blocked cor- rected an error in the blocking assignments. Then late in the third quarter, the Dallas coaches asked for several replays to study the position of the Buffalo linebackers. The second look revealed they were drifting outside to protect against the swoops of Abner Haynes. A play was immediately sent in and halfback Frank Jackson sped 21 yards up the middle for a touchdown. Into the Living Room. While the average electronics enthusiast will probably not be adding a $75,000 VTR system along side his stereo rig within the very near future, the advancements in the video recording field have surpassed those in most other related fields by leaps and bounds. How small and less expensive can they get? Well, one of the first miniaturized videotape recorders weighing 30 pounds and occupying less than one cubic foot of space, was developed by Dallas Texans used videotape recorder in Ampex in December, 1961, for the National game with Buffalo Bills to analyze plays. Aeronautics and Space Administration to record satellite television pictures as well as ing is ever attempted. And, of course, the other scientific data. tape is reusable time and again. On the home front, several electronic Follow the Bouncing Ball. Further into manufacturers are involved in research and the depths of educational TV, the world of development along the lines of a home -type sports has entered the scene and can posi- video recorder. In fact, several are on the tively be considered within the permanent market and it only remains to lower prices scope of the educational -TV -user. Actual still further for these VTR's as was done with TV tape recording of game action by a foot- once -expensive transistor equipment. One ball team (for use by its coaches and players) unit from England, the Wesgrove Video Re- was first demonstrated by the Los Angeles corder, VKR500, is now available in kit Rams during the 1958 season in a game with form for $392.00. The assembled version, the San Francisco 49'ers. The Rams used the VR700 is $492. (For more information a closed- circuit system which consisted of a write to Wesgrove International, 3325 Fil- camera, videotape recorder and television more Street, San Francisco.) But even receivers in the coaching booth, in the press though designers seem to be closer than ever box and in the dressing room. This way to reaching the consumer level pricewise with each play of the game was available for play- such a device, the additional expense of a back on request for the assistant coaches in TV camera chain, may still pose a barrier to the press box. Then at half-time, the first - the average buyer. half plays were shown to the players. It was With all the facts statistically weighed and

no wonder that Rams officials and players measured, it's still a happy thought to assume . were enthusiastic over the results of the dem- that within a short time you'll be able to tape onstration. They won the game 40 to 38. the back yard picnic, junior at bat in the Quarterback Bill Wade had completed 10 sand lot game and the first steps of the new of 10 passes in the first half and credited the baby. Mom will even be able to tape that ,recorder with helping solve the defense. special TV program fare while dad's stuck Sporting Chance. In a similar demonstra- at the office so he'll be able to watch it at tion for the Dallas Texans during the 1962 breakfast. Maybe we're not so far from season in a game with the Buffalo Bills, wrist -o- vision as one might think!

102 RADIO -TV EXPERIMENTER

www.americanradiohistory.com WHAT LIES AHEAD?

By K. C. Kirkbride. The next chair you sit in might be monitored by the new long- distance lie detector -and you won't even know it!

Few would view George Orwell as a when the grilling ended, the man was con- cheery soul. But recently- announced elec- demned. The theory was that guilt dried his tronic devices suggest he may have been an salivary glands. ardent Pollyanna fan when he wrote 1984. For even way -back physiological changes He portrayed the horrors of men subjugated were linked with prevarication. But not un- to living in a goldfish bowl in the future. But til the 1920's was the theory applied and even now Senate Committee members listen mechanized. A young psychologist named to reports of electronic eavesdropping pos- John Larson designed a contraption he said sible over thousands of miles, gadgets that could read blood pressure, pulse rate and can televise a room from blocks away, listen breathing changes all at the same time. His in on conversations by simply direct -dialing associate, a man named Leonarde Keeler a number! But the latest soul- snooper to be added a few complications to the gadget, announced out -eeries them all. named it the Keeler pplygraph, and the mod- For recently, Scientific Director of the ern lie- detector was born. Foundation for Medical Technology, Dr. The principle behind this uncanny con- Carl Berkley, announced we will soon be able trivance was the supposition that when a man to put a lie detector together that can detect lies he gives an emotional reaction caused by at a distance, from as far as thirty feet away, conflict between early conditioning toward and without the person monitored being any telling the truth, coupled with his desire to the wiser. escape detection. And, in turn, this emo- The Elusive Truth. While Dr. Berkley sees tional reaction causes physiological changes. "constructive" applications for such a device, These physiological changes can be meas- both medical and Congressional committee ured by a real slick detector in the form of members warn against the present detector, blood pressure changes, heart rate, respira- let alone a long -distance inquisitor. Yet man's tion movements and frequency of perspira- suspicions of his fellow man's veracity have tion in the palm of the hand or galvanic skin existed through the centuries, and tracking responses. the truth has never been a pleasant pro- End Justifies the Means? The subject cedure. questioned simply sits in a specially -con- Early man proved his innocence by thrust- structed chair, his arms resting on pivots ing his hand in a flame. If the hand came out linked to pens that record on a graph every of the fire unsinged, the truth had been told. fidget, while a bar under the chair registers The Chinese thought up a slightly less fiendish leg movements and squirming. lie -detector. They demanded a man chew rice The examiner then fastens a ten -inch cor- while being questioned. If the rice was dry rugated rubber tube about the subject's chest

JANUARY, 1966 103

www.americanradiohistory.com to check breathing, a metal gadget to clamp caused by in- and -out movement of the chest electrodes on index and fourth fingers to wall. The subject's temperature could easily record galvanic skin reflexes. An inflatable be monitored by infra -red, and skin perspira- rubber strapped about the upper arm meas- tion changes recorded by reflecting micro- ures blood pressure, while a human inquisi- waves or by reflection of polarized light. tor sits beyond the subject's vision to spot Changes in blood pressure could be the subject's facial expression in profile. tracked by spot- scanning fluctuations of veins If the subject is lying, so says the theory, in the forehead or neck and pulse checked by the lies show in sudden levelling of respira- tracking reflections of the skin. Pulsed ultra- tion coupled with a slight rise in blood pres- sonic radar could detect a second reflection sure changes that register on the graph. through the chest wall from the motion of While this device has proved its merits the heart, or a spot follower cite pulse rate. many times over snagging perpetrators of A partial forerunner to such a compre- violent crimes, it has also been known to hensive peeping -tom has already been built frighten innocent persons into unwarranted by General Motors' scientists at Santa Bar- admissions. Two University of Virginia doc- bara, California, who built a chair that looks tors, H. B. Dearman and B. M. Smith, cite to the civilian eye like any ordinary chair, but the instance of a bank vice -president, called conceals an indirect heart-rate monitoring system that records pumping action of the heart, and broadcasts data to a recorder. I" FOAM Another chair that will take an electro- cardiogram indirectly, by detecting circulating electric current produced by heart action ACCELEROMETER has been tested by Syracuse University, in Syracuse, New York. The End of Intrigue. While such a device seems frightening to most, the applications 1/2" FOAM I/8" PLEXI GLASS I/2" ^LYWOOD of a long- distance lie- detector could serve at diplomatic conferences, says Dr. Berkley. It I FOAM could spot espionage agents, might work out dandy at the United Nations, and could cer-

RUBBER tainly truth -up political discussions on inter- COUPLER I/2' PLYWOOD BASE national relations. But is this the way to DOWEL PIN mutual understanding and trust? Less optimistic observers are certain to Exploded view of otherwise innocuous look- view this new detector as savoring of the ing chair designed for subtle interrogation. sterile and inhuman society of 1984. Already Senate Committee members hear reports of on to make a routine test by his bank's de- electronic devices that can monitor private tective agency, who confessed to a crime he conversations on Capitol Hill from as far had never committed. away as Hawaii, a laser that will televise ac- The very process of being questioned is tion in a room from a point blocks away, a many times seriously disturbing to a sensitive gadget to link to a telephone line, then direct - person, and though survey claims 80- percent dial the number from any phone in the truth -telling by the machine, congressional nation and hear the conversation in the room, and medical leaders both question its use by while the receiver remains on the hook! industry and its "unscrupulous" use by Gov- Reports of such electronic super -snoopers, ernmental departments. coupled with reports of radio receivers shel- Insidious Sophistication. Now Dr. Berk- tered in Martini olives, tie clips and shoe ley foresees a detector that may soon operate soles, shudder us all. Then if you add the without the frightening clamps, hoses, or product recently advertised for a mere special chairs, one that will detect without $18.00 that reportedly will listen to your embarrassing the questioned for he need not best -friend's conversation 500 feet away, and know he is being monitored! a long -distance lie detector, you are certain Respiration would be measured by scan- to elect George Orwell the century's leading ning light changes along a subject's profile as optimist. Is it possible that 1984, a year that he breathes in and out. A single frequency should never arrive if it brings society to of ultrasound could be beamed at the subject,, Orwell's satiric prophecy, may be even closer recording changes in the reflected beam than 18 calendar years? What lies ahead?

104 RADIO -TV EXPERIMENTER

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www.americanradiohistory.com protons, plus the newly- created photon -anti- The Anti -World photon pair. By October of 1955 Segre and Chamber- Continued from page S7 lain announced they had found the missing anti -proton predicted by Dirac. They had bombarded copper atoms with very high en- and had created sixty anti -pro- Five years later, a young physicist, Carl ergy protons, average of four an hour in the David Anderson, working with the famed tons, an accelerator. And all anti- protons Robert Millikan in the California Institute Bevatron the tests set up to determine a true of Technology, on cosmic ray studies, was passed photographs of tracks in a spe- anti -proton. poring over Its Anti. With this chamber he had designed. Tracked Every Particle Has cial cloud claimed every particle must the chamber, he thought he saw tracks finding, physicists across and they could see the way- Corrigan electron, an elec- have its anti -particle, of a wrong- they would prove an the wrong way. day coming soon when tron curved But where this world Curved Track. The tracks showed just anti -world existed. it could have formed seemed what could be expected from electrons car- was and how charge rather than negative, still a mystery. rying positive Doctor Maurice Goldhaber, and the startled Anderson suddenly realized The famed of the Brookhaven Laboratories, at he had tracked the heralded missing electron. Director York, offered a possible solution promptly named it the "positron." Upton, New He He suggested the universe For the wrong -way electron answered all to its formation. first existed as a single particle the requirements laid down by Dirac. When could have contained the mass of the whole uni- it met a negative electron it cancelled out, which and released energy in the form of gamma verse. particle he called the "universon." rays. This first time in the past, he believed, Search Is On Now. The new discov- At some distant The could have divided into a intensified the search for the second par- this universon ery -particle which he called the proton, that Dirac had also forecast, particle and its anti ticle, and the "anti -cosmon," each but this time discovery was to take a good the "cosmon" nucleonic charge but of opposite twenty-two years. with a large Again specifications were clear. The new sign. believed, could be similar must have the mass of a regular pro- This division, he proton decay of a fundamental ton, have equal charge, be stable, disappear to the spontaneous a particle and an anti -particle. when it met its opponent proton, and liberate particle into and the anti -cosmon might equal to the mass of the two. Thus, the cosmon energy and after separating, the the Second World War ended, an have flown apart, When decayed in time into American physicist, prominent for his cosmon might have Italian- in turn, formed our present work on the atomic bomb and the new ele- nucleons, which 43, turned to the search for the missing cosmos. ment Space. Other advanced sci- -particle. Teaming with Owen Chamber- Radio From anti there could be more than one lain at the University of California, Emile entists agreed one made of matter, the second of Segre worked out plans to create or find an universe, was obvious that to create anti -matter. anti -proton. It theorized anti -matter would require tremendous While still others such a particle with matter galaxies in and the giant synchroton at the galaxies colliding energies, the heavy radiations that was just the accelerator that might space might cause University radio messages to earth. do it. speeded be But to prove an anti -world existed took One Bev. The anti -proton could an and more than theory. Man still had to find created only in pairs with the proton, Dirac's equal to the anti -atom. Scientists had proved they needed to produce energy They had According to the Ein- equation by creating anti -particles. mass of two protons. annihilate in their acceler- theory, this would amount to 1,876 watched particles stein seconding Eddington's theories and million electron volts, or about two billion ators, suggesting solution to the Siberian explosion. electron volts. anti -world existed, they anti -particle they needed to To be certain an To find the anti -particles held together high energy particle at a target, a needed to prove hurl a same nuclear binding as particles proton against a proton. After collision they with the become atoms in the matter-world. should have four particles, the two origin al RADIO -TV EXPERIMENTER 108

www.americanradiohistory.com The Atom Next. A five -man research exists. In Lederman's words, "It is no longer team at Columbia University, New York, possible to question the basic physics part of headed by Professor of Physics, Dr. Leon the conception of a literal anti -world pop- Lederman, set out to find this vital link, the ulated by stars and planets." anti -atom. With continued searching, we will one day First they built a mass spectrometer, then penetrate the deepest secrets of the anti- aimed a proton beam from Brookhaven's world, the world that mirrors our own, but 33- billion -electron -volt synchroton at a beryl- reverses time. And who can tell, we may lium target, the spectrometer system watch- discover anti -people in the anti -world. ing the particles flying off the resulting People who will land at New York's mir- collisions, to produce the first anti -deuteron, rored Kennedy airport at noon, take off the first known anti -nucleus made of an from a Los Angeles airport a few hours later, anti -proton and an anti -neutron. They had men who will grow younger instead of older, created the first complex atomic nucleus, the people who will start the "day" at midnight, anti -nucleus of the heavy hydrogen atom. go to sleep at dawn. A strange world where An anti -atom bound by strong nuclear force! a communications space craft aimed at our Anti -World. With the discovery of the world would destroy us in a nuclear holo- anti -deuteron, man now knows an anti -world caust.

1 , 11 , 11 , 1 11 111 , , , 1 , 1 , , , 1 , , , , 111111 , , 1 , 1 1 o , , 1111 111111 111, , , , , , , , 111 11 1 , 1 111 11111 , , , , , , , , , 11 , , 11111 , 1 , , , , , , , , , , , ,1 , , , 1 , 1 , , , , , 1 , 1 , 1111 , 1 1111 , ,1 , , , , 1 ,1111, 1 , 1 11 , , , , , , , , , , 1 , , , , , , , , , , , , , , , ,1 , 111 11111 11 1 1 . , , , , , , , , , , , , , , , , , , , , , 11 , 11 , 111111 , 11 , 1 , 11 111 11 11 11111 1 11 . , , , , , , 11111 , , , , , 1 ,11 , , 11111111 1 , , , , , , , , , 111111 1 , , 1 1 u 1 1 1 , . . - , . . 11111 , , .. , , , , , , 111 , , , , 111111 . 1 , 111 , 11111 1111 n report you may receive a verification letter, DX'ing the Vanishing Breed but chances are that you will receive nothing. Continued from page 75 Address your report to the Chief Operator at the station you heard. Our list of stations indicates whether the station is operated by frequency for an hour or two. If you resist municipal, county, or state law enforcement the temptation to tune away during a period agencies (indicated MP, CP, and SP), and of extended station inactivity (we have lis- this will have to be included in the address. tened to a dead frequency for 15 minutes Typical mailing addresses might look as fol- only to have it come alive with several sta- lows: Chief Operator, Radio Station KCA- tions all at the same time), or during some 999, New Hampshire State Police, Concord, bursts of man -made static, you will be able N. H., or Chief Operator, Radio Station to log most of the stations on the channel in KMA785, Police Department, Los Angeles, one or two sittings. Calif. More often than not, county law en- You will eventually get to have a few forcement comes under the jurisdiction of favorites among the "old reliables" on the the sheriff, so your report to a county station band and will enjoy tuning them in on eve- would be: Chief Operator, Radio Station nings when you aren't really in the mood to KMA795, Sheriff's Department, San Bernar- devote intense effort to breaking DX records. dino, Calif. One of our favorites is KCA999 of the New Those stations on our lust which are in- Hampshire State Police. They operate on dicated by an asterisk ( *) are of a tem- 1682 kc., packing a fantastic signal which has porary nature, rather than being at a fixed been heard regularly in Europe! location. These might be located in a truck How to QSL. When sending a reception or communications van and intended for use report to any of these stations, be sure to in- during a local emergency where it is neces- clude the date, time, frequency, signal sary to establish a base station to dispatch strength, equipment used at your station mobile units for a period of hours or days. (don't forget to tell about your antenna), Reports to these stations should be sent to and some specific detail of the transmis- the local police department, the county sion(s) monitored, such as: "You broad- sheriff, or the state police, whichever is cast State Police Bulletin #27 -A5," or, "You applicable. had a notice about a stolen 1962 green Ford There's plenty of fine listening here, and sedan." when you think that in a few years these Since these stations do not have regular stations might be little more than memories QSL cards to send out, it is suggested that to be discussed around the table with other you include with your report a stamped, self - "old time DX'ers," they seem even more addressed, prepared reply card which the interesting to track down and QSL. Better operator can fill in, sign, and return to you. make hay while the sun shines by turning on If you don't include the card with your your receiver at sunset!

JANUARY, 1966 109

www.americanradiohistory.com below a particular pickup's optimum force The Pickup Problem (whether that force is one gram or four), loss Continued from page 66 of proper groove contact will cause far more severe groove damage than slightly -too- thing but the above considerations. But if heavy force. avoided two you're going to play older LP's and/or 78's So far, we've conspicuously perform- well, you've got some choosing to do when major yardsticks of hi -fi: measured as The first of comes to the size of a stylus tip and the ance and audible sound quality. it to inter- type of cartridge. If your record collection these is getting increasingly tougher test methods really runs the gamut, you may be best off pret. Because test records and impossible to with a moving- magnet or induced -magnet vary so critically, it is virtually tested per- pickup with a set of interchangeable, plug-in tell anything about a pickup's comparisons with stylus assemblies. Should the choice be strict- formance except in direct way at the same ly a matter of new stereo discs and old LP's, others tested in the same chance to see a an elliptical stylus can be the answer -pro- time. When you do have a and maintained with lov- comparative report, the differences between vided it's installed to For the most people, though, either today's excellent pickups are reduced ing care. and .7 -mil stylus or a pair of in- subtle variations in square -wave pictures a compromise frequency terchangeable assemblies would be a more the point and extent of high- square -wave choice. If you are mainly concerned groove resonance. Unless the logical or unless with top stereo performance, you may has severe ringing at one frequency, in or above -small (.6 to .4 mil) tip and there is a noticeable peak or dip choose an ultra is noise and distortion when the 10 -kc region, the best you can do tolerate occasional sound in the wider groove of an predict whether a cartridge will the tip "bottoms" another. mono or stereo LP. slightly brighter or mellower than early to com- Stick -to- itiveness. At this point, it's And you will find it next -to-useless talking for a moment about the much - pare the usual set of specs from manufactur- worth have misunderstood subject of tracking force. ers. The problem is simply that pickups searching Somewhere along the line, many audiophiles gotten too good for the old spec- to have picked up the notion that any game. seem then? pickup should be set at as low a tracking The Answer. What should you do, possible. This has been translated By all means listen closely to the pickups force as Listen the idea that tracking force is an index suited to your own particular needs. into and speak- of quality and the pickup with the lowest preferably via the same amplifier at home, so you can stated force is the one to buy. These are no- ers you're going to use avoid. tell whether a slight dip or peak in a pickup's tions to in force itself is a function prima- response will be increased or decreased Tracking or cartridge's mass and compliance effect (to the point of excessive brightness rily of a If (both of which are partially a function of dullness) by the rest of your equipment. performer the use it's designed for) and of its stylus any pickup that should be a good check to see tip size. It's worth understanding that tip size sounds "spitty" or distorted, account for the different forces whether an eager-beaver salesman has set alone can record for two cartridges -and that the tracking force too light -or if the specified well. for a smaller tip may actually sounds bad on other cartridges as lighter force to- overall, than an apparently larger Is anything going on that might make be heavier, Probably force for a larger tip. Once you accept this day's choice obsolete tomorrow? trend (beyond the reasonably straightforward proposition, you not. The one discernible the semi- conductor should go on to acknowledge that tracking elliptical tip) is toward further reduction in itself is mainly a question these days pickup which promises force and signal - the use involved. Within the tracking size and mass of stylus assemblies of cartridges. But ranges specified by manufacturers, none of producing mechanisms inside to be no threat of a the cartridges on the accompanying chart for now, there seems one of the heavy- tracking record - revolution in pickup design. acts like an expert of a few years back. Choose your Thus you don't have to become destroyers or other according to use, and then -with the on dynamic mass, compliance pickup pickup. For- a good test record-set the lightest esoteric matters to pick a good help of kind of use which perfect groove contact is get the figures, remember the force at listen. possible. Keep in mind that when you go you intend to give a cartridge-and

RADIO -TV EXPERIMENTER 110

www.americanradiohistory.com reflected his personal enthusiasm for the first Weather Phone two TIROS weather satellites orbiting the earth and sending back helpful Continued from page 70 photographic data. "I now invite all nations ... including benefit from these improvements." the Soviet Union ... to join with us in developing a weather The Speed of Lightning. Since the Presi- prediction program," he said. dent's October announcement, the benefits John have been largely those of time. Kennedy's hopes for international cooperation in meteorology "We are presently achieving an active became a growing plan 11 speed -up of raw facts from one to five hours," months later when, in Decem- ber, 1964, says Dr. White of the Weather Bureau. "All the U.N. General Assembly unanimously approved weather forces depend on data from large Resolution 1721, em- bodying a Kennedy -proposed geographical areas. Meteorology is the inter- four -point program of space national science par excellence. The weather cooperation. It was this resolution that sent the World aflecting one part of the world today affects Meteorological Organization into immediate the other part tomorrow. Everybody needs action. Expanding the Weather all the information. The sooner we get this Eye. The WMO's first report information, the better are our prognosis in June of 1962 recom- maps." mended the creation of a World Weather System, which Dr. Hollomon, who made a trip to Russia itself became a working blue- print in the after the line was activated, reports that the spring of 1963. Long -range studies to bring improved American weather maps received on the weather services to all nations Soviet side are extremely clear and detailed. of the world were started at that time. A special While in Moscow, he visited the Central research and development fund for improvement Forecasting Institute, now designated as the of facilities, first World Weather Center. education, and training was established. The system was planned to focus "Tremendous excitement was exhibited by on three World Weather Centers, one to be located Russian weathermen I met about the speed in Mos- cow, another in Washington, with which information is transmitted and a third in on the the Southern line," explains Dr. Hollomon. "They Hemisphere. have In many more people on their weather addition to gathering, processing, and staff disseminating global than we. Thus, many of their maps weather observations are from satellites and other drawn by hand, while ours are done by com- sources, the Centers would also train puters. The Russians are very capable people. meteorologists, study large - scale weather systems, and Technologically, they can do anything we archive weather can do." information for research purposes. Now, three years after WMO's Anyone who has followed the chain of first report, Russia has the first Center, events leading up to the new U.S.- Soviet and a new weather line links Moscow weather line and the international plan for to Washington. Thus, the Northern Hemisphere benefits a World Weather System might well agree daily from with Dr. Hollomon. very high -speed facsimile communications over the new 5,000 Both ideas have piqued the imaginations -mile transcontinental circuit. Photos are and spurred into action not only Russian also received and transmitted at twice the diplomats but also three American Presidents speed usually used on international circuits. -Eisenhower, Kennedy, and Johnson. Speak- While Moscow and Suitland ing to the United Nations, late in his term of are the only two transmitting office, President Eisenhower proposed that points on this first link, plans "... we press forward with a program of are being made to offer the weather data on international cooperation for constructive a receive -only basis to countries that may peaceful uses of outer space under the United wish to participate by payment of a propor- Nations. Better weather forecasts, improved tional share of the cost. world -wide communications ... are but a On December 31, 1964, the Weather Bu- few of the benefits of such cooperation." reau's Suitland operation was officially named President-elect John F. Kennedy, in No- the second World Weather Center. Although vember of 1960, also began to think about Drs. Hollomon and White refuse to name the the weather and what he could personally third, informed sources in Washington wager do about it. His State of the Union message that it will be in Australia-and by 1968.

JANUARY, 1966 111

www.americanradiohistory.com Volume 44, No. 3 WHITE'S

North An up -to -date Broadcasting Directory of a American AM, FM and TV Stations. Including Special Section on World -Wide Short -Wave Stations

Canadian and last part of White's U. S. AM Stations by Frequency, is the third U. S. Television now published in three parts AM Stations by Frequency, ThisRadio Log, Canadian Television Sta- year. This format presentation Stations by States, twice each and the World-Wide Short- the Editors of RADIO -TV EXPERI- tions by Location enables In the event you missed a to offer its readers two complete Wave Section. MENTER Log published during the last half volumes of White's Radio Log each year, part of the you will have a complete volume of while increasing the scope of the Log and its of 1965, White's Radio Log by collecting any three accuracy. of RADIO-TV EXPERIMEN- issue of White's Radio Log we consecutive issues In this half of 1966. The three included the following listings: U. S. TER during the first have are an entire volume of Stations by Call Letters, U. S. FM Sta- consecutive issues AM Log that offers complete tions by Call Letters, Canadian AM Stations White's Radio last minute station change data by Call Letters, Canadian FM Stations by listings with AM Sta- that are not offered in any other magazine Call Letters, Cuban and Mexican DX'er, the World -Wide or book. If you are a broadcast band tions by Call Letters, and distant Section. FM station logger, like to photograph Short -Wave or tune the short -wave In February-March 1966 issue of RADIO - TV test patterns, you will find the new White's format TV EXPERIMENTER, Volume 45, No. 1, bands, and up -to-date reference. the Log will contain the following listings: an unbeatable QUICK REFERENCE INDEX 113 U.S. AM Stations by Call Letters - 122 U.S. FM Stations by Call Letters Canadian AM Stations by Call Letters 126 Canadian FM Stations by Call Letters 127 Cuba & Mexico AM Stations by Call Letters 127 World -Wide Short -Wave Stations 128 RADIO-TV EXPERIMENTER 112

www.americanradiohistory.com U. S. AM Stations by Call Letters C.L. Location Re. C.L. Location Rc. C.L. Location Re. C.L. Location Re. KAAA Kingman, Ariz. 230 KATI Casper, Wyo. 1400 KBOW Butte, Mont. 5 50 KCOH KAAB Hot Springs, Ark. 340 KATL Houston, Tex. 1430 Miles City, Mont. 1340 KBOX Dallas. Tex. 14 80 KCOK Tulare, KAAY Little Rock, Ark. 090 KATN Boise, Calif. 1270 Idaho 1010 KBOY Medford, Oreg. 7 30 KCOL KABC Los Angeles. Calif. 790 Ft. Collins, Colo, 1410 KATO Safford. Ariz. 1230 KBPS Portland, Oreg. 14 50 KCOM Comanche, KABE Westwego, La. 540 Tex. 1550 KATQ Texarkana, Tex. 940 KBRC Mt. Vernon, Wash. 14 30 KCON KABH Midland, Tex. 510 KATR Eugene. Conway, Ark. 1230 Ore. 1320 KBRI Brinkley, Ark. 15 70 KCOR KABI Abilene, Kans. 560 KATY San San Antonio, Tex. 1350 Luis Obispo, Cal. 1340 KBRK Brookings, S.Dak. 14 30 KCOW Alliance, Nebr. 1400 KABL Oakland, Calif. 960 KATZ St. Louie, Mo. KABQ Albuquerque, 1600 KBRL McCook, Nebr. 13 00 KCOY Santa Maria, Calif. 1400 N.M. 350 KAUS Austin, Minn. 1480 KBRN Brighton, Colo. KA BR Aberdeen, S.Dak. 420 8 00 KCPX Salt Lake City, Utah 1320 KAVE Carlsbad, N.Mex. 1240 KBRO Bremerton, Wash. 1490 KACE Riverside, Calif. 570 KCRA Sacramento, Calif. 1320 KAVI Rocky Ford, Colo. 1320 KBRR Leadville, Colo. 1230 KCRB Chanute, KACI The Dalles. Oreg. 300 KAVL Lancaster, Calif. Kans. 1460 KACL Santa Barbara. 610 KBRS Springdale, Ark. 1340 (CRC Enid, Okla. 1390 Cal. 290 KAVR Apple Valley, Calif. 0 KBRV KACT Andrews, Tex. Soda Sprgs., Ida. 540 KCRG Cedar Rapids, Iowa 1600 360 KAWA Waco -Marlin, Tex. 190160 KBRX O'Neill, Nebr. KACY Port Hueneme, Calif. 520 1350 KCRM Crane, Tex. 1380 KAWL York, Neb. 1370 KBRZ Freeport, Texas 1460 KADA Ada, Okla. 230 KAWT Douglas, Ariz. KCRS Midland, Tex. 550 Pine 1450 KBSF Springhill, La. 1460 KCRT Trinidad, Colo. 1240 KADL Bluff, Ark. 270 KAYC Beaumont, Tex. 1450 KBSN Crane. Tex. KADO Marshall. Tex. 410 970 KCRV Caruthersville, Mo. 1570 KAYG Lakewood, Wash. 1480 KBST Big Spring. Tex. 1490 KADY St. Charles, Mo. 460 KAYL Storm Lake, KCSI Pueblo, Colo. 590 Iowa 990 KBTA Batesville, Ark. 1340 KCSR Chadron. Nebr. KAFY Bakersfield. Calif. 550 KAYO Seattle, Wash. 1150 610 KAGE KBTC Houston, Mo. 1250 (CTA Corpus Christi, Tex, 1090 Winona, Minn. 380 KAYS Hays, Kans. 1400 KBTM Jonesboro, KAGH Crossett, Ark. 800 KAYT Rupert, Ark. 1230 KCTI Gonzales, Tex. 1450 Idaho 970 KBTN Neosho, Mn. 1420 KAG1 Grants Pass, Oreg. 930 KBAB Indianola, 1490 KCTY Salinas, Calif. 980 Iowa (BTU El Dorado, Kans. 1360 KAGO Klamath Falls, Oreg. 1150 KBAL San I(CTX Childress Tex. 1510 Saba, Tex. 1410 KBTR Denver, Colo. 7 KAGR Yuba City, Calif. 1450 KRAM Longview. Wash. 10 (CUB Tucson, Ariz. 1290 1270 KBUD Athens, Tex. 10 KAGT Anacortes, Wash. 1340 KBAN Bowie, Tex. 14 KCUE Red Wing. Minn. 1250 1410 KBUH Brigham City, Utah 8 00 KAHI Auburn, Calif. 950 KBAR Burley, Idaho KCUL Fort Worth, Tex. 1540 1230 KBUN Bemidji, Minn. 14 50 I(CVL Wash. KAHR Redding, Calif. 1330 KBAT San Antonio, Tex. 680 KBUR Colville, 1270 1KAHU Hawaii Burlington, Iowa 14 90 KCVR Lodi, Calif. 1570 Waipahu, 940 KBBA Benton, Ark. 690 KBUS Mexia Tex. KAIM Honolulu, Hawaii 870 KBBB 15 90 KCYL Lampasas, Tex, 1450 Borger, Tex. 1600 KBUY Amarillo, Tex. 10 KAIN Nampa, Ida. 1340 KBBC 10 KDAB Arvada, Colo. 1550 Centerville, Utah 1600 KBUZ Mesa, Ariz. 13 IO KAIR Tucson, Ariz. 1490 KBBO Yakima, Wash. 1390 KDAC Ft. Bragg, Calif. 1250 KBVM Lancaster, Calif. 13 80 KAJO Grants Pass, Oreg. 1270 KBBR North Bend, 1340 KDAD Weed, Calif. 800 Oreg. KBVU Bellevue, Wash. 15 40 KAKA Wickenburg, Ariz, 1250 KBBS Buffalo, Wyo. 1450 KDAK Carrington, N.D. 1600 KAKC Tulsa. KBWD Brownwood, Tex. 13 80 KDAL Duluth, Minn. 610 Okla. 970 KBCH Oceanlake, Oreg. 1380 KBXM Kennett, Mo. KAKE Wichita, Kan. 1240 KBCL Shreveport, La. 15 40 KDAN Eureka. Calif. 790 1220 KBYE Okla. City, Okla. 8 90 KALB Alexandria, La. 5 80 KBEA KDAV Lubbock. Tex. 580 Mission, Kans. 1480 KBYG Big Spring, Tex. KALE Richland, Wash. 9 60 KBEC 140 0 KDAY Santa Monica, Calif. 1580 Waxahachie. Tex. 19 90 KBYP Shamrock, Tex. 1580 KALF Mesa, Ariz. 15 IO KBEE Modesto, KDB Santa Barbara, Calif. 1490 Calif. KBYR Anchorage, Alaska 1270 KALG Alamogordo. N.Mex. 12 30 KBEK Elk KDBM Dillon, Mont. 800 City. Okla. 12 70 KBZY Salem, Oreg. KDBS KALI San Gabriel, Cal. 14 30 KBEL Idabel. Okla. 12 40 Alexandria, La. 1410 Cola. 14ÓÓ KDCE Espanola. KALL Salt Lake City. Utah 9 IO KBEN Carrizo Sprgs., Tex. 14 N.M. 970 KALM 50 KCAB Dardanelle. Ark. 980 KDDD Dumas, Tex. Thayer, Mo. 12 90 KBER San Antonio. Tex. 50 KCAC Phoenix, 800 KALN Iola, Kan. IS 70 Ariz. 1010 KDEC Decorah, Iowa 1240 KBET Reno, Nev. 13 40 KCAD Abilene. Tex. 1560 KALO Little Rock, Ark. 12 50 KBEV Portland, Oreg. 10 KDEF Albuquerque, N.Mex. 1150 10 KCAL Redlands, Calif. 1410 KALT Atlanta, Tex. 9 00 KBEW Blue Earth, Minn. 15 KDEN Denver, Colo. 1340 60 KCAM Glennallen, Alaska 790 KDEO El KALV Alva, Okla. 14 SO I(BFS Belle Fourche. S.Dak. 1450 KCAN Cajon, Calif. 9310 KAMD Camden, Canyon, Tex. 1550 KDES Palm Sprgs., 920 Ark. 9 10 KBGN Caldwell, Idaho 910 KCAP Helena, Mont. Calif. KAML Kenedy- Karnes City, KBGO Waco. Tex. 1340 KDET Center, Tex. 930 1580 KCAR Clarksville, Tex. 1350 Tex. KBHB Sturgis, D. KDEX Dexter. Mo. 590 S. 12 80 KCAS Slaton, Tex. 1050 KAMO Rogers, Ark. 390 KBHC Nashville, Ark. KDEY Boulder. Colo. 3611 12 60 KCAT Pine Bluff, Ark. 1530 KAMP El Centro. Calif. 430 KBHM Branson, Mo. 12 KDFN Doniphan, Mo. 500 KAMY McCamay, Tex. 450 KCBC Des Moines, Iowa 1390 KDGO Durango, Colo. 240 KBHS Hot Springs, Ark. 20 KCBD Lubbock, Tex. 1590 KANA Anaconda, Mont. 580 KBIA Burlington, la. 11 50 KDHI Twenty-nine Palms, KANB Shreveport, La. 300 KCBQ San Diego, Calif. 1170 California 250 KBIB Monette, Ark. KCBS San Fran.. NAND Corsicana. Tex. 340 KBIF I Calif. 740 KDHL Faribault, Minn. 920 Fresno, Calif. 80 KCCB KANE New Iberia, La. 240 KBIG Avalon, Corning. Ark. 1260 KDHN Dimmitt, Tex. 470 Cal. 7 40 KCCL Paris, Ark. 1460 KANI Wharton, Tex. 500 KB1M Roswell, N.Mex. 910 KDIA Oakland. Calif. 310 KANN Ogden, KCCO Lawton, Okla. 1050 KDIO Utah 230 KBIS Bakersfield, Calif. 970 KCCR Pierre, Ortonville, Minn. 350 KANO Anoka, Minn. 470 KBIX Muskogee, S. D. 1240 KDIX Dickinson, N.Dak. 250 Okla. 490 KCCT Corpus Christi, Tex. 1150 KANS Larned, Kan. 510 KBIZ Ottumwa, Iowa 240 (D11 Holbrook, Ariz. 270 KAOH Duluth, KCCV Independence, Mo. 1510 KDI(A Pittsburgh. Minn. 390 KBJT Fordyce, Ark. 570 KCEE Pa. 020 KAOK Lake Charles, La. 400 KBKR Baker, Tucson, Ariz. 790 KDKD Clinton, Mo. 280 Oreg. 490 KCEY Tunloek, Calif. 1390 KAOL Carrollton, Mo. 430 KBKW Aberdeen, Wash. 45p KDKO Littleton, Colo. 510 KAOR Oroville, Calif. 340 KCFA Spokane, Wash. 1330 KDLA DeRidder, La. KBLA Burbank, Calif. 500 Cuero, 010 KAPA Raymond, Wash. 340 KBLE Seattle, Wash. KCFH Tex. 1600 KDLK Del Rio, Tex. 230 050 KCFI Cedar Falls, Iowa 1250 KAPB Marksville, La. 370 KBLF Red Bluff, Calif. 490 KDLM Detroit Lakes, Minn. 340 KCGM Columbia, Mo. 1580 KAPE San Antonio, Tex. 480 KBLI Blackfoot, Idaho 690 KDLR Devils Lake, N.Dak. 240 KAPI Pueblo, KCHA Charles City, Iowa 1580 KDLS Perry, Colo. 690 KBLL Helena, Mont. 240 KCHE Iowa 310 KAPR Douglas, Ariz. 930 KBLR Bolivar. Mo. Cherokee, Iowa 1440 KDMA Montevideo, Minn. 450 550 KCHI Chillicothe, Mo. 1010 KAPS Mt. Vernon, Wash. 1470 KBLT Big Lake, Tex. 290 1(DMO Carthage, Mo. 490 KCHI Delano, Calif. 1010 KAPT Salem, Ore. 1220 KBLU Yuma, Ariz. 320 KDMS El Dorado, Ark. 290 KCHR Charleston, Mo. 1350 KAPY Port Angeles, Wash. 1290 KBLY Gold Beach, Oreg. 220 KDNC Spokane, Wash. 440 KARA Albuquerque, N.M. 1310 Henderson, KCHS Truth or Consequences, KDNT Denton, Tex. 440 KBMI Nev. 400 New Mexico KARE Atchison. Kan. 1470 KBMN Bozeman, Mont. 230 1400 KDOK Tyler, Tex. 330 KARI Blaine, Wash. 550 KCHV Coachella. Calif. 970 KDOL Mojave. Calif. 540 KBMO Benson, Minn. 290 KCHY Cheyenne, Wyo. NARK Little Rock, Ark. 920 KBMR Bismarck, 1530 KDOM Windom, Minn. 580 N. D. 350 KCID Caldwell, Idaho 1490 KARM Fresno. Calif. 1430 KBMW Wahpeton. N.D. - KDON Salinas, Calif. 460 KARR Great Falls, Mont. 1400 Breckenridge, KCII Washington, Iowa 1380 KDOT Scottsdale, Ariz. 440 Minn. 450 KCIJ Shreveport, La. 1050 KARS Belen. N.M. 860 KBMX Coalinga, Calif. 470 KCIL K DO V Medford. Oreg. 300 KART Jerome, Idaho 1400 KBMY Billings, Houma. La. 1490 KDOX Marshall, Tex. 410 Mont. 240 KCIM Carroll. Iowa 1380 KARY Prosser, Wash. 1310 KBND Bend, Oreg. 110 (DON DeQueen, Ark. 590 KASH Eugene, Ore. KCIN Victorville. Calif. 1590 KCMG Deer Lodge, Mont. 400 1590 KBOA Kennett, Mo. 830 KCJB Minot, N.Dak. KASI Ames, Iowa 1430 I(BOE Oskaloosa, Iowa 740 910 KDRO Sedalia, Mo. 340 KASK Ontario. Calif. 1510 KBOI Boise. Idaho KCKC San Bernardino, Cal. 1350 KDRS Paragould, Ark. 490 670 KCKG Sonora. Tex KASL Newcastle, Wyo. 1240 KBOK Malvern. 1240 KDRY Alamo His., Tex. 110 Ark. 310 KCKN Kansas Kans. 1340 KASM Albany, Minn. 1150 KBOL Boulder. Colo. 490 City, KOSJ Deadwood, S.Dak. 980 KCKW Jena, La. 1480 KASO Minden. La. 1240 KBOM Bismark- Mandan, KDSN Denison, Iowa 580 KCKY Coolidge. Ariz. 1150 KDSX DenlsonSherman, KAST Astoria, Ore. 1370 N. Dak. 1 27 KCLA Pine Bluff, Ark. 1400 Tex. 950 KASY Auburn. Wash. 1220 KBON Omaha, Nebr. 1 49 KCLE Cleburne, Tex. 1120 KDTA Delta, Colo. KATA Arcata, Calif. KBOP Pleasanton, Tex. 38 1400 0 KCLN Clinton, Iowa 1390 KDTH Dubuque. Iowa 1570 KATE Albert Lea, Minn. 1450 KBOR 1 Brownsville, Tex. 60 0 KCLO Leavenworth. Kans. 1410 KDUZ Hutchinson. Minn. 1260 KCLR Rails, Tex. 1530 KDWA Hastings, Minn. 1460 KCLS Flagstaff, Ariz. 600 KDWB St. Paul. Minn. 630 KCLU Rolla, Mo. 1590 K D W T Stamford, Tex. 1400 KCLV Clovis, N.Mex. 1240 1(DXE No. Little Rock, Ark. 1380 KCLW Hamilton. Tex. 900 KDXI Mansfield, La. 1360 Every effort has been made to ensure accuracy of the KCLX Colfax, Wash. 1450 KDXU St. George, Utah 1450 KCMC Texarkana, Tex. 1230 information listed in this publication, but absolute accu- KDYL Tonal., Utah 990 KCMJ Palm Sprgs., Calif. 1010 KDZA Pueblo, Colo. 1250 racy is not guaranteed and of course, only information KCMO Kansas City, Mo. 810 KEAN Brownwood, Tex. 1240 available up to press -time could be included. Copyright KCMS Manitou Soros., Colo. 1490 KEAP Fresno, Calif. 980 KCN1 Broken Bow. Nebr. 1280 KEBE Jacksonville, Tex. - 1400 1965 by Science & Mechanics Publishing Co., a subsidiary KCNO Alturas, Calif. 570 K ECH Ketchikan, Alaska 6201 of Davis Publications, Inc., 505 Park Avenue, New York, KCNY San Mareos. Tex. 1470 KECK Odessa, Tex. :. 920j KCOB Newton. Iowa 1280 New York 10022. KEDD Dodge City, Kans. ear 1550 KCOG Centerville. Iowa 1400 KEDO Longview, Wash. 1400

JANUARY, 1966 113

www.americanradiohistory.com C.L. Location Kc. WHITE'S C. L. Location Kc. C.L. Location Kc. Guymon, Okla. 1220 KJAX Santa Rosa, Calif. 1150 KFMJ Tulsa, Okla. 1050 KGYN 1430 1390 KHAI Honolulu, Hawaii 1090 KJAY Sacramento, Calif. KFML Denver, Colo. KJBC Midland, Tex. 1150 KFMO Flat River, Mo. 1240 KHAK Cedar Rapids, Iowa 1360 'DUO La. 1300 KJCF Festas. Mo. 1400 IL KFNF Shenandoah. Iowa 920 KHAL Homer, 1420 1600 KH AP Aztec, N.M. 1340 KJCK Junction City, Kans. KFNV Ferriday, La. Day, Ore, 1400 Fargo, N.Dak. 900 KHAR Anchorage, Alaska 590 KJDY John KFNW 1230 KIEF Jennings, La. 1290 KFOR Lincoln. Nebr. 1240 KHAS Hastings, Nebr. Phoenix, Ariz. 1480 KJEM Oklahoma City, Okla. 800 KFOX Long Beach, Calif. 1280 KHAT Tex. 1580 aoc/ Ft. Smith, Ark. 1290 KHBC Hilo, Hawaii 970 I(J ET Beaumont, KFPW 1570 M Ark. 1430 KJFJ Webster City. Iowa I(FQD Anchorage, Alaska 730 K H B Monticello, 870 1390 Hillsboro, Tex. 1560 l(JIM Ft. Worth, Tex. KFRA Franklin, La. KHBR Ariz. 1400 C.L. Location Kc. KFRB Fairbanks, Alaska 900 KHDN Hardin, Mont. 1230 I(J1(1 Flagstaff, Big Springs, Tex. 1270 KILT North Platte. Nebr. 970 Eugene, KFRC San Francisco, Calif. 610 KHEM Alaska 630 KEED Springfield- Richmond, K H E N H enryetta, Okla. 1590 KJNO Juneau, 1120 KFRD Rosenberg- I Ore. 980 KHEP Phoenix. Ariz. 1280 I(JOE Shreveport, La. 1230 Tex. I 280 KEEE Nacogdoches, Tex. 940 KHER Santa Maria, Calif. 1600 1(JOY Stockton, Calif. 710 KFRE Fresno, Calif. I 390 KEEL Shreveport, La. 550 Paso, Tex. 690 KJPW Waynesville, Mo. 1370 KFRM Kansas City. Mo. KHEY El 950 KEEN San Jose, Calif. 1370 Sierra Vista, Ariz. 1420 KJR Seattle. Wash. Idaho 1450 1(FRO Longview, Tex. KHFH 950 KEEP Twin Falls. 1400 KH FI Austin, Tex. 970 I(JRG Newton, Kans. Gladewater, Tex. 1490 KFRU Columbia, Mo. Nebr. 900 KEES I(FSA Ft. Smith, Ark. 950 KHHH Pampa, Tex. 1230 KJSI( Columbus, Hawaii 790 Ark. 1 450 KEKO Kealakekua, Joplin, Mo. 1310 KHIP Albuquerque, N.M. 1520 KJ W H Camden, Chekalis, KFSB Tex. 1 580 KELA Centralia- KFSC Denver, Colo. 1220 KNIT Walla Walla, Wash. 1320 KKAL Denver City, 470 1 350 Wash. Stockton, Tex. 860 KH1 Los Angeles, Calif. 930 KKAM Pueblo, Colo. El Dorado, Ark. 400 KFST Ft. Kans. I 490 KELD Colo. 1400 KHMO Hannibal. Mo. 1070 KKAN Phillipsburg, Okla. 490 KFTM Ft. Morgan. I 220 KELI Tulsa, Tex. 1250 KHOB Hobbs, N.Mex. 1390 l(I(AR Pomona, Calif. Nev. 240 KFTV Paris, I 300 I(ELK Elko, Mo. 1450 KHOE Truckee, Calif. 1400 K I(AS Silsbee, Tex. Falls, S.Dak. 320 KFTW Frederickstown, Wash. I 150 KELO Sioux Las Vegas, N.Mex. 1230 KHOG Fayetteville, Ark. 1440 1(1( E Y Vancouver, Paso, Tex. 920 KFUN I 550 KELP El Mo. 850 KHOK Hoquiam. Wash. 1560 KI(HI San Francisco, Calif. El Reno. Okla. 460 KFUO Clayton, Minn. 930 KELR Cape Girardeau, Mo. 960 KHOS Tucson, Ariz. 940 KKIN Aitkin, Ely, Nev. 230 KFVS 1250 Pittsburg. Calif. 990 KELY KFWB Los Angeles, Calif. 980 KNOT Madera, Calif. KKIS Mena, Ark. 450 N.Mex. 1 340 KENA KFXD Nampa, Idaho 580 KHOW Denver, Colo. 63G K KIT Taos, KEND Cheyenne, Wyo. 980 Ark. 900 K KlO St. Joseph, Mo. I 550 490 I(FXM San Bernardino, Calif. 590 KHOZ Harrison, 410 I< EN E Tappenish, Wash. 1420 I(HQ Spokane. Wash. 590 K KOK Lompoc, Calif. I Anchorage, Alaska 550 KFYN Bonham, Tex. Tex. 1300 KENI KFYO Lubbock, Tex. 790 KH RT Minot, N. D. 320 KKUB Brownfield, KENM Portales, N.Mex. 450 Hemet, 320 KLAC Los Angeles Calif. 570 390 KFYR Bismarck, N.Dak. 550 1(1151 Calif. KENN Farmington, N.M. 510 Chico, Calif. 290 KLAD Klamath Falls. Oreg. 960 Nev. 460 KGA Spokane, Wash. KHSL KENO Las Vegas, 580 Fremont. Nebr. 340 KLAK Lakewood, Colo. I Houston, Tex. 070 KGAF Gainesville, Tex. KHUB Alaska 1450 KENR KGAK Gallup, N.Mex. 330 KHUM Santa Rosa, Callif. 580 KLAM Cordova, KENT Prescott. Ariz. 340 Tex. 490 KLAN Lemoore, Calif. I 320 KCAL Lebanon, Oreg. 920 KHUZ Borger, 1230 KENY Bellingham- Ferndale. 550 Honolulu, Hawaii 040 KLAV Las Vegas, Nev. Wash. 930 KGAR Vancouver, Wash, KHVH Lubbock, Tex. 1340 KGAS Carthage, Tex. 590 KIBE Palo Alto, Calif. 220 KLBK KEOS Flagstaff, Ariz. 690 430 Seward, Alaska 950 I(LBM La Grande, Oreg. 1450 Richland - KGAY Salem, Oreg. KIBH 1930 KEPR Kennevick- 360 KIBL Beeville, Tex. 490 KLBS Los Banos, Calif. Pasco, Wash. 610 KGB San Diego. Calif. Libby, Mont. 1230 KGBA Santa Clara 430 KIBS Bishop. Calif. 230 KLCB KEPS Eagle Pass, Tex. 270 980 I(LCN Blytheville, Ark. 910 600 KGBC Galveston. Tex. 540 KICA Clovis, N.M. 1280 KERB Kermit, Tex. 020 KICD Spencer, Iowa 240 1(LCO Poteau. Okla. KERC Eastland, Tex. 590 KGBS Los Angeles, Calif. Lovington. N.Mex. 630 KGBT Harlingen, Tex. 530 KICK Springfield. Mo. 340 KLEA 1 280 1600 KERG Eugene. Oreg. Mo. 260 Golden. Colo. 250 KLEB Golden Meadow, La. Calif. I 410 KGBX Springfield, KICM 1480 KERN Bakersfield, N.D. 450 KILO Calexico, Calif. 490 KLEE Ottumwa, Iowa 1 230 ¡COCA Rugby. KERV Kerrville, Tex. Mont. 480 KICS Hastings, Neb. 550 KLEI Kailua, Hawaii 1130 Mo. 1 580 KGCX Sidney, KESM Eldorado Springs. 630 KICY Nome, Alaska 850 !(LEM LeMars, Iowa 1410 KEST Boise. Idaho KGDN Edmonds. Wash. Tex. 1050 I(GEE Bakersfield, Calif. 2300 KID Idaho Falls, Idaho 590 KLEN Killeen, KETO Seattle, Wash. 1590 630 I(LEO Wichita, Kans. 1480 1440 I(GEK Sterling, Colo. KIDD Monterey. Calif. KETX Livingston, TeX. 140 KIDO Boise, Idaho 630 I(LER Orofino, Idaho 950 Eunice, La. 1490 KGEM Boise, Idaho Mo. 1570 KEUN KGEN Tulare, Calif. 370 KIEV Glendale, Calif. 870 l(LEX Lexington, KEVA Evanston, Wyo. 1240 390 1510 KLFD Litchfield. Minn. 1410 1590 KGER Long Beach. Calif. KIFG Iowa Falls, la. KEVL White Castle. La. 600 860 KLEE Mead, Wash. 1590 690 KG EZ Kalispell, Mont. 1(1 FN Phoenix, Ariz. KEVT Tucson, Ariz. Okla. 450 KIFW Sitka, Alaska 1230 l(LGA Algona, Iowa 1600 Oakland, Calif. 910 KGFF Shawnee, Logan, Utah 1990 KEWB KG F1 Los Angeles. Calif. 230 KIHN Hugo, Okla. 1940 KLGN KEW! Topeka, Kans. 1440 1340 KLGR Redwood Falls, Minn. 1490 1190 I(GFL Roswell. N.Mex. 400 KIHR Hood River. Oreg. KEX Portland, Oreg. 940 Huron, S.Dak. 1340 KLIB Liberal, Kans. 1470 June., Colo. 1230 KGFW Kearney, Nebr. KIJV La. KEXO Grand KGFX Pierre, S.Dak. 630 KIKI Honolulu. Hawaii 830 KLIC Monroe, KEYD Oakes, N.Dak. 1220 650 I(LID Poplar Bluff, Mo. 1340 1400 KGGF Coffeyville. Kans. 690 KIKK Pasadena, Tex. KEYE Perryton, Tex. 610 Ariz. 1340 KLI F Dallas, Tex. 1190 N.Dak. 1400 KGGM Albuquerque, N.Mex. KI KO Miami, 950 KEYJ Jamestown. Mont. 790 KIKS Sulphur, La. 1310 KLIK Jefferson City. Mo. Long Prairie, Minn. 1400 KGHL Billings, Nebr. 1400 KEYL I(GH M Brookfield, Mo. 1470 1(I L E Galveston, Tex. 1400 KLIN Lincoln, KEYR Tarrytown, Nebr. 690 1440 I(LIP Fowler, Calif. 1220 Tex. 1440 I(GHS International Falls, KILO Grand Forks. S.Dak. l(EYS Corpus Christi, 1230 Houston, Tex. 610 I(LIQ Portland, Oreg. 1290 Provo, Utah 1450 Minn. KILT 990 KEYY KGHT Hollister, Calif. 1520 l(IMA Yakima. Wash. 1460 I(LIR Denver, Colo. I(EYZ Williston. N.Dak. 1360 1260 KLIV San Jase, Cal. 1590 920 I(GIL San Fernando, Calif. 1260 1(IMB Kimball. Nebr. 1310 KEZU Rapid City. S.Dak. 1450 Gillette, Wyo. 1490 KLIX Twin Falls, Idaho Anaheim. Calif. 1190 KGIW Alamosa, Colo. KIML Minn. 1380 KEZY Tex. 1490 KIMM Rapid City, S.D. 1150 l(LIZ Brainerd, KFAB Omaha, Nebr. 1110 KGKB Tyler, Parsons, Kans. 1540 960 l( I M N Denver, Colo. 950 1(LKC Calif. 1330 KGKL San Angelo, Tex. 1570 K FAC Los Angeles, 1600 1(I MO Hilo, Hawaii 850 l(LLA Leesville, La. Lakewood Center. 1(G KO Benton, Ark. Tex. 1460 K FAH KGLC Miami, Okla. 910 l(IMP Mt. Pleasant, Tex. 960 KLLL Lubbock. Wash. 1480 Kans. 1010 I(LME Laramie, Wyo. 1490 Mo. 900 KGLE Glendive, Mont. 590 KIND Independence. 1060 I(FAL Fulton. 740 KINE Kingsville, Tex. 1330 KLMO Longmont, Colo. KFAM St. Cloud. Minn. 1450 KGLM Avalon, Calif. Lamar, Colo. 920 1(0LN Glenwood Sums.. Colo. 980 KING Seattle, Wash. 1090 KLMR KFAR Fairbanks, Alaska 610 Ariz. 1230 KLMS Lincoln, Nebr. 1480 Francisco, Calif. 1100 KGLO Mason City. Iowa 1300 KINO Winslow, 1450 KFAX San 1480 Eureka. Calif. 980 I(LMX Clayton. N.Mex. KFAY Fayetteville, Ark. 1250 I(GLU Safford, Ariz. l(INS Utah 1430 KGMB Honolulu, Hawaii 590 KINT El Paso, Tex. 1590 I(LO Ogden, KFAZ Liberty. Tex. 1050 800 KLOA Ridgecrest, Calif 1240 1310 KGMC Englewood. Colo. 1150 l(INY Juneau. Alaska (FBB Great Falls, Mont,- 940 KLOC Ceres, Calif. 920 1240 Bellingham. Wash. 790 KIOA Des Moines. Iowa (FBC Cheyenne. Wyo. I(GMI 1310 KLOE Goodland, Kans. 730 1530 KGMO Cane Girardeau, Mo. 1220 KIOT Barstow, Calif. (FBK Sacramento, Calif. 1270 KLOG Kelso, Wash. 1490 1380 KGMR Jacksonville, Ark. 1500 1(IOX Bay City, Tex. (FCB Redfield, S. Dak. 1110 KLOH Pipestone, Minn. 1050 1440 KGMS Sacramento, Calif. 1980 KIPA Hilo. Hawaii 1170 (FDA Amarillo, Tex. 1310 Calif. 1560 KLO l( San Jose. Calif. Buren, Ark. 1580 KGMT Fairbury. Nebr. KIDS Willows, 1530 (FDF Van Tex. 1420 I(IRO Seattle. Wash. 710 KLOL Lincoln, Neb. (FDI Wichita. Kansas 1070 KGNB New Braunfels, Lompoc, Calif. 1330 KGNC Amarillo, Tex. 710 l(IRT Mission, Tex. 1580 KLOM KFDR Grand Coulee. Wash. 1360 1510 KLOO Corvallis, Ore. 1340 970 KGNO Dodge City, Kans. 1370 K RV Fresno, Cal. KFEL Pueblo. Colo. Mo. 1450 KLOS Albuquerque, N. M. 1580 Mo. 680 KGNS Laredo. Tex. 1390 KIRX Kirksville, 1580 KFEQ St. Joseph, 810 Sioux Falls. S.Dak. 1230 1(LOU Lake Charles, La. Helena, Ark. 360 KG() San Francisco. Calif. I(ISD 1570 KFFA Desert, Cal. 1270 KIST Salina, Kan. 910 KLOW Loveland, Colo. KFGQ Boone, Iowa 260 KGOL Palm Lake Providence, La. 1050 KGOS Torrington, Wyo. 1490 KISN Vancouver. Wash. 910 KLPL l(FGT Flagstaff. Ariz. 930 1340 KLPM Minot. N.Dak. 1390 330 KGPC Grafton, N.Dak. 1340 KIST Santa Barbara, Calif. KFH Wichita. Kans. 900 Wash. 1280 KLPR Okla. City, Okla. 1140 Angeles. Calif. 640 KGRB West Loma, Cal. KIT Yakima, 1010 t(FI Los Tex. 1000 San Antonio, Tex. 930 KLRA Little Rock. Ark. Tucson, Ariz. 550 KGRI Henderson, KITE Grove, Mo. 1360 I(FIF Bend, Oreg. 940 KITH Clinton, Mo. 1350 KLRS Mountain KFIV Modesto, Calif. 360 KGRL Little Falls, Minn. 960 450 KGRN Grinnell, Iowa 1410 KITI Chahalis -Centralia, I(LTF KFIZ Fond du Lac. Wis. 1420 KLTI Macon, Mo. 1560 Iowa 230 KGRS Pasco, Wash. 1340 Wash. l(FJB Marshalltown, 570 Olympia, Wash. 920 KLTR Blackwell, Okla. 1580 KFJM Grand Forks. N.Dak 370 KGRT Las Cruces, N.Mex. KITN Mont. 1240 KGST Fresno, Calif. 1600 KIUL Garden City, Kans. 1240 KLTZ Glasgow, KFJZ Ft. Worth. Tex. 270 1400 Salt Lake City, Utah 570 310 KGTN Georgetown, Tex. 1530 I(IUN Pecos, Tex. KLUB KFI(A Greeley, Colo. Durango, Colo. 930 KLUC Las Vegas, Nev. 1050 930 KGU Honolulu, Hawaii 760 I(IUP 1280 KFKF Bellevue. Wash. 1490 Crockett, Tex. 1290 KLUE Longview, Tex. Lawrence, Kans. 250 KGUC Gunnison, Colo. i(IVY La. 1580 KFKU Santa Barbara, Calif. 990 I(IWA Sheldon, Iowa 1550 KLUV Haynesville, KFLA Scott City. Kans. 310 KGUD 910 KLVI Beaumont, Tex. 560 900 KGUL Port Lavaca, Tex. 1560 KIXI Seattle, Wash. KFLD Floydada, Tex. 1400 Tex. 1040 KLVL Pasadena, Tex. 1480 Home, Ida. 240 KGVL Greenville, Tex. l(IXL Dallas, 1230 KFLI Mountain 1290 Provo. Utah 1400 KLVT Levelland, Tex. Colo. 980 KGVO Missoula, Mont. KIXX 1320 KFLJ Walsenburg, Belgrade, Mont. 630 KIXI Amarillo, Tex. 940 KLWN Lawrence, Kans. KFLN Baker, Mont. 960 I(GVW 1150 KLWT Lebanon. Mo. 1230 450 KGW Portland. Oreg. 620 KIZZ El Paso, Tex. KFLW Klamath Falls, Oreg. Madison, S.Dak. 1390 KLWW Cedar Rapids, Iowa 1450 Oreg. 240 KGWA Enid, Okla. 960 KJAM 1350 KFLY Corvallis. 1240 I(JAN Atlantic. Iowa 1220 KLYD Bakersfield, Calif. KFMB San Diego, Cal. 760 KGY Olympia, Wash. RADIO-TV EXPERIMENTER 114

www.americanradiohistory.com C.L. Location Ke. C.L. Location Ke. C.L. Location Ke. C.L. Location Ke. KLYQ Hamilton, Mont. 980 I(OFI Kalispell. Mont. 930 KPOS Post. Tex. 370 KRTR Thermopolis, Wyo. 490 KLYR Clarksville, Ark. 1360 I(OFO Ottawa, Kans. 1220 KPOW Powell, Wyo. 260 KRUN Ballinger, Tex. 400 KLZ Denver. Colo. 560 KOFY San Mateo, Calif. 1050 KPPC Pasadena, Calif. 240 (CRUS Ruston, La. 490 KMA Shenandoah. Iowa 960 KOGA Ogallala, Nebr. 930 KPQ Wenatchee, Wash. 560 K R U X Glendale, Ariz. 360 KMAC San Antonio, Tex. 630 I(OGO San Diego, Calif. 600 KPRB Redmond, Oreg. 240 KRVC Ashland, Oreg. 350 KMAD Madill, Okla. 550 I(OGT Orange, Tex. 1600 KPRC Houston, Tex. 950 KRVN Lexington, Nebr. 010 KMAE McKinney, Tex. 600 (OH Reno, Nev. 630 KPRI( Livingston, Mont. 340 KRWB Roseau, Mien. 410 KMAK Fresno, Calif. 340 I( OHI St. Helens, Ore. 1600 KPRL Paso Robles. Calif. 230 I(RXK Rexburg, Idaho 290 KMAM Butler, Mo. 530 KOHO Honolulu, Hawaii 1170 KPRM Park Rapids, Minn. 240 K RYS Corpus Christi, Tex. 360 KMAN Manhattan, Kans. 350 KOHU Hermiston, Oreg. 1570 I(PRO Riverside, Calif. 440 I(RYT Colo. Springs, Colo. 530 KMAQ Maquoketa, Iowa 320 KOIL Omaha. Nebr. 1290 I(PRS Kansas City, Mo. 590 KRZE Farmington, N.M. 280 KMAR Winnsboro, La. 570 KOIN Portland. Oreg. 970 KPSO Falfurrias, Tex. 260 KRZY Albuquerque, N.M. 580 KMAS Shelton, Wash. 280 KOJM Havre. Mont. 610 KPST Preston, Idaho 340 I(SAC Manhattan, Kans. 580 KMBC Kansas City, Mo. 980 KOKA Shreveport, La. 550 I(PTL Carson City, Nev. 300 KSAL Salina, Kans, 150 KMBL Junction, Tex. 450 KOKE Austin, Tex. 370 (PUB, Pueblo, Colo. 480 KSAM Huntsville, Tex. 490 KMBY Monterey. Calif. 240 l(OKL Okmulgee, Okla. 240 KPUG Bellingham, Wash. 170 I(SAY San Francises, Calif. 010 I(MCD Fairfield, Iowa 570 K01(0 Warrensburg, Mo. 450 KPUY Puyallup, Wash. 450 I(SBW Salinas, Calif. 380 KMCM McMinnville. Dreg. 260 1(01(X I(eokuk, Iowa 310 KQAQ Austin, Minn. 970 KSCB Liberal, Kans. 600 KMCO Conroe, Tex. 900 1(O KY Little Rock, Ark. 440 KQCY Quincy, Calif. 370 KSCI Sioux City, Iowa 360 KMDO Ft. Scott, Kans. 600 KOL Seattle, Wash. 300 KQEN Roseburg, Ore. 240 IArkansas City, Kans, 280 KNED McAlester, Okla. 1150 KOVE Lander, Wyo. 330 KRH D Duncan, Okla. 350 KSOL San Francisco, Cal. 450 KNEL Brady, Tex. 1490 KOVO Provo. Utah 960 KRIB Mason City, Iowa 490 KSON San Diego, Calif. 240 KNEM Nevada, Mo. 1240 KOWB Laramie, Wyo. 290 KRIG Odessa, Tex. 410 1(500 Sioux Falls, S.Dak. 140 KNET Palestine, Tex. 1450 KOWH Omaha, Neb. 660 KRIH Rayville, La. 990 I(SOP Salt Lake City, Utah 370 KNEW Spokane, Wash. 790 KOWL Bijou, Calif. 490 KRI I( Roswell. N. Mex. 960 !(SOX Raymondville, Tex. 240 KNEX McPherson, Kans. 1540 I(OWN Escondido. Calif. 450 I(RIO McAllen, Tex. 910 KSPA Santa Paula, Calif. 400 I(NEZ Lompoc, Calif. KOXR Oxnard, Calif. 910 I(RIZ Phoenix, Ariz. 1230 KSPI Stillwater, Okla. 780 KNGL Paradise, Calif. 930 KOY Phoenix, Ariz. 550 I(R I(C King City, Calif. 1490 I(SPL Diboll, Tex. 280 KNGS Hanford. Calif. 620 I(OYL Odessa, Tex. 1310 KRI(D Los Angeles, Calif. 1150 KSPO Spokane, Wash. 230 KNIA Knoxville, Iowa 1920 I(OYN Billings, Mont. 910 I( RI (O Everett, Wash. 1380 KSPT Sandpoint. Idaho 400 KNIC Winfield, Kan. 1550 I(OZE Lewiston, Idaho 1300 KR KT Albany, Ore. 990 KSRA Salmon, Idaho 960 KNIN Wichita Falls, Tex. 990 KOZI Chelan, Wash. 1220 KRLA Pasadena, Calif. 1110 KSRC Socorro, N.Mex. 290 KNIT Abilene, Tex. 1280 KOZY Grand Rapids. Minn. 1490 KRLC Lewiston, Ida. I(SRO Santa Rosa. Calif. 950 KNND Cottage Grove, Oreg. 1400 KPAC Port Arthur, Tex. 1250 -Clarkston, Wash. 1350 I(SRV Ontario, Oreg. 380 KNOC Natchitoches, La. 1450 !(PAL Palm Springs. Calif. 1450 I

.JANUARY,, 1966 115

www.americanradiohistory.com WHITE'S; C.L. Location Kc. C.L. Location Ke C.L. Location /Cc. KUPI Idaho Falls, Idaho 980 K W H W Altus, Okla. 1450 KYOS Merced. Calif. 1480 KURA Moab, Utah 1450 KWIC Salt Lake City, Utah 1550 KYOU Greeley, Colo. 1450 KURL Billings, Mont. 730 KWIK Pocatello, Idaho 1240 KYRO Potosi. Mo. 1280 Edinburg, Tex. 710 KWIL Albany, Oreg. 790 KYSM Mankato. Minn. 1230 KURV 1460 Malo KURY Brookings, Oreg. 910 KW I N Ashland, Oreg. 580 KYSN Colorado Sprgs., Colo. KUSD Vermillion. S.Dak. 690 KWIP Merced, Calif. 1580 KYSS Missoula, Mont. 910 1600 KWIQ Moses Lake, Wash. 1260 KYUM Yuma, Ariz. 560 KUSH Cushing, Okla. 1230 KUSN St. Joseph. Mo. 1270 KWIV Douglas, Wyo. 1050 KYVA Gallup, N.Mex. aoa 790 KWIZ Santa Ana. Calif. 1480 KYW Cleveland. Ohio 1100 KUTA Blanding, Utah KUTI Yakima, Wash. 980 KW11 Portland, Oreg. 1080 KZEE Weatherford, Tex. 1220 KWK St. Louis, Mo. 1380 KZEY Tyler, Tex. 690 KG. KUTY Palmdale, Calif. 1470 C.L. Location KUVR Holdredge, Nebr. 1380 KWKC Abilene, Tex. 1340 KZIP Amarillo Tex. 1310 KUXL Golden Valley, Minn. 1570 K W K H Shreveport, La. 1 130 KZIX Fort Collins, Colo. 600 KTCR Minneapolis, Minn. 690 1300 1470 410 I(UZN W. Monroe, La. 1910 KWKW Pasadena, Calif. KZNG Hot Springs, Ark. KTCS Fort Smith, Ark. 1150 1490 470 KUZZ Bakersfield, Calif. 800 KWKY Des Moines. Iowa KZOE Princeton. Ill. KTDL Farmersville, La. 1530 1570 230 KVAL Sauk Rapids, Minn. 800 KWLA Many, La. KZOL Farwell, Tex. KTDO Toledo. Oreg. 1240 Honolulu, Hawaii 1210 Idaho 260 KVAN Camas, Wash. 1480 KWLC Decorah, Iowa KZ00 KTEE Idaho Falls. Willmar. Minn. 1340 KZOT Marianna, Ark. 1460 Walla Walla. Wash. 490 KVAS Astoria, Ore. 1230 KWLM KIEL KVBR Brainerd. Minn. 1340 KWMT Ft. Dodge, Iowa 540 KZOW Globe, Ariz. 1240 KTEM Temple, Tex. 400 Wash. 630 Tex. 940 l(VCK Wolf Point, Nebr. 1450 KWNA Winnemucca. Nev. 1400 KZUN Opportunity, KTEO San Angelo, KWNO Winona, Minn. 1230 KZYM Cape Girardeau, Mo. 1220 Terrell, Tex. 570 KVCL Winnfield, La. 1270 KTER Redding, Calif. 600 KWNS Pratt, Kans. 1290 KZZN Littlefield, Tex. 1490 KIFI Twin Falls, Idaho 270 KVCV 1480 KVEC San Luis Obispo, Calif. 920 KWNT Davenport, Iowa 1580 VOUS Argentia, Nfld. KTFO Seminole, Tenn. 250 980 400 KVEE Conway. Ark. 1350 KWOA Worthington, Minn. 730 WAAA Winston -Salem. N.C. KTFS Texarkana, Tex. 930 Mass. 1440 Wyo. 240 KVEG Las Vegas, Nev. 970 KWOC Poplar Bluff. Mo. WAAB Worcester, KTHE Thermopolis, 1250 KWOE Clinton, Okla. 1320 WAAC Terre Haute. Ind. 1300 KTHO Tahoe Valley, Calif. 590 KVEL Vernal, Utah 480 I(VEN Ventura, Calif. 1450 KWON Bartlesville. Okla. 1400 WAAF Chicago, Ill. KTHS Berryville, Ark. 1340 1470 790 KVET Austin, Tex. 1900 KWOR Worland, Wyo. WAAG Adel, Ga. KTHT Houston, Tex. Mo. 1240 WAAK Dallas, N.C. 960 Thibodaux, La. 630 KVFC Cortez. Colo. 740 KWOS Jefferson City. KTIB Ft. Dodge, Iowa 1400 KWOW Pomona, Calif. 1600 WAAM Ann Arbor. Mich. 1600 KTIL Tillamook, Oreg. 1590 KVFD 1950 1510 I(VGB Great Bend. Kans. 1590 KWPC Muscatine, Iowa 860 WAAP Peoria, Ill. KTIM San Rafael, Calif. West Plains, Mo. 1450 WAAT Trenton. N.J. 1300 1(V 1 Seattle, Wash. 570 KWPM KTIP Porterville, Calif. 1450 1270 Gadsden. Ala. 570 Minn. 900 KVIC Victoria, Tex. 1340 KWPR Claremore. Okla. WAAX KTIS Minneapolis. 1150 KWRC Woodburn, Ore. 940 WAAY Huntsville, Ala. 1550 KTIX Pendleton, Ore. 1240 KVIL Highland Park, Tex. KVIM New Iberia, La. 1360 KWRD Henderson. Tex. 1470 WABA Aguadilla, P.Rieo 850 KTKN Ketehikan, Alaska 990 730 1480 1310 KVIN Vinita, Okla. 1470 KWRE Warrenton, Mo. WABB Mobile. Ala. KTKR Taft, Calif. KWRF Warren. Ark. 860 WABC New York. N.Y. 770 KTKT Tucson, Ariz. 990 KVIO Cottonwood, Ariz. 1600 Redding, Calif. 540 KWRG New Roods, La. 1500 WABD Ft. Campbell, Ky. 1370 KTLD Tullulah, La. 1960 KVIP 1220 1280 KVKM Monahans, Tex. 1330 KWRO Coquille, Oreg. 690 WABF Fairhope, Ala. KILN Denver. Colo. 1370 Miss. 1490 KVLB Cleveland. Tex. 1410 KWRT Boonville, Mo. WABG Greenwood. KTLO Mtn. Home, Ark. 1360 Deerfield, Va. 116050 1350 KVLC Little Rock, Ark. 1050 KWRV McCook, Nebr. WABH KTLQ Tahlequah, Okla. Okla. 1490 WABI Bangor, Maine 910 Rusk, Tex. 1580 KVLF Alpine. Tex. 1240 KWRW Guthrie, KTLU 1570 Pullman. Wash. 1250 WAR) Adrian, Mich. 1490 KTLW Texas City, Tex. 920 KVLG LaGrange. Tex. KWSC Pauls Valley. Okla. 1470 KWSD Mt. Shasta. Calif. 620 WABL Amite. La. 1570 KTMC McAlester, Okla. 1400 KVLH Miss. 990 1590 KVLL Livingston, Tex. 1220 KWSH Wewoka- Seminelle, WABO Waynesboro, KTMN Trumann, Ark. Oklahoma 1260 WABQ Cleveland. Ohio 1540 KTMS Santa Barbara, Calif. 1250 KVLV Fallon, Nev. 980 Magnolia, Ark 630 KWSL Grand Junction, Colo. 1340 WABR Winter Park, Fla. 1440 KTNC Falls City. Nebr. 1230 KVMA Ala. 580 1400 KVMC Colorado City, Tex. 1320 KWSO Waseo, Calif. 1050 WABT Tuskegee, KTNM Tucumcari, N.Mex. 1230 S.C. 1590 1400 KVML Sonora, Calif. 1450 KWTC Barstow, Calif. WABV Abbeville, KTNT Tacoma. Wash. 560 N.Y. 1400 1490 KVNC Winslow, Ariz, 1010 KWTO Springfield, Mo. WABY Albany, KTOB Petaluma, Cal. Tex. 1230 WABZ Albemarle, N.C. 1010 Jonesboro, La. 920 KVNI Coeur d'Alene. Idaho 1240 KWTX Waco, KTOC U N Concord, Cal. 1480 WACA Camden. S.C. 1590 KTOD Sinton, Tex. 1590 I(VNU Logan, Utah 610 K W 1340 KW V R Enterprise, Oreg. 1340 WACB Kittanning, Pa. 1380 KTOE Mankato, Minn. 1420 KVOB Bastrop, La. 730 KVOC Casper. Wyo. 1290 KWVY Waverly, Iowa 1470 WACE Chicopee, Mass. KTOH Lihue, Hawaii 1490 Waterloo. Iowa 1390 WACI The Dallas, Ore. 1300 Oklahoma City, Okla. 1000 KVOD Albuquerque, N. Mex. 730 KWWL KTOK 1400 KWXY Cathedral City, Cal. 1340 WACK Newark, N.Y. 1420 KTON Belton. Tex. 940 KVOE Emporia, Kans. 570 KVOG Ogden, Utah 1490 KWYK Farmington. N.M.X. 960 WACL Waycross, Ga. KT00 Henderson, Nev. 1280 1400 Tex. 1460 1490 KVOL Lafayette. La. 1990 KWYN Wynne. Ark. WACO Waco, KTOP Topeka. Kans. Wyo. 1410 WACR Columbus, Miss. 1050 KTOT Big Bear Lake, Cal. 1050 KVOM Morrilton, Ark. 800 KWYO Sheridan. 1440 KWYR Winner, S.Dak. 1260 WACT Tuscaloosa, Ala. 1420 KTOW Sand Spring, Okla. 1940 KVON Napa. Calif. 1460 1170 KWYZ Everett, Wash. 1230 WACY Moss Point, Miss. KTPA Prescott, Ark. 1970 KV00 Tulsa. Okla. N.C. 1990 860 KVOP Plainview. Tex. 1400 KXA Seattle. Wash. 770 WADA Shelby, KTRB Modesto. Calif. 1490 Wadesboro, N.C. 1210 1400 KVOR Colo. Springs, Colo. 1300 KXAR Hope. Ark. WADE KTRC Santa Fe, N.Mex. 1540 WADK Newport, R.I. 1540 KTRE Lufkin, Tex. 1420 KVOU Uvalde, Tex. 1400 KXEL Waterloo. Iowa KVOW Riverton, Wyo. 1450 KXEN Festus -St, Louis, Mo. 1010 WADM Decatur, Ind. 1540 KTRF Thief River Falls, 1340 WADO New York. N.Y. 1280 Minn. 1230 KVOX Moorhead. Minn. 1280 KXEO Mexico, Mo. 1400 KXEW Tucson, Ariz. 1600 WADS Ansonia, Conn. 690 KTRG Honolulu, Hawaii 990 KVOY Yuma, Ariz. Pa. 790 740 KVOZ Laredo, Tex. 1490 KXEX Fresno. Calif. 1550 WAEB Allentown. KTRH Houston, Tex. 1960 P.Rieo 1300 1470 KVPI Ville Platte, La. 1050 KXG1 Ft. Madison, Iowa WAEL Mayaguez, KTRI Sioux City, Iowa 1400 WAEW Crossville, Tenn. 30 KTRM Beaumont, Tex. 990 KVRC Arkadelphia. Ark. 1240 KXGN Glendive, Mont. Cottonwood, Ariz. 1240 KXGO Fargo, N. Dak. 790 WAFC Staunton, Va. 900 KTRN Wichita Falls, Tax. 1290 KVRD Amsterdam, N.Y. 1570 730 KVRE Santa Rosa. Calif. 1460 KXIC Iowa City, Iowa 800 WAFS KTRY Bastrop, La. 1410 WAGC Centre. Ala. 1550 550 I(VRH Salida. Colo. 1940 KXIT Dalhart, Tex. KTSA San Antonio, TeX. 1400 Leesburg, Va. 1290 1940 Rock Springs, Wyo. 1360 KXIV Phoenix, Ariz. WAGE KTSL Burnett, Tex. KVRS 950 Ala. 1320 1980 l(VSA McGehee. Ark. 1220 KX1 K Forrest City, Ark. WAGF Dothan. KTSM El Paso, Tex. 1520 Tenn. 1600 KVSF Santa Fe, N.Mex. 1260 KXKW Lafayette. La. WAGG Franklin, KTTN Trenton. Mo. 750 WAGL Lancaster, S. C. 1550 1490 KVSH Valentine, Nebr. 940 KXL Portland. Orel. KTTR Rolla, Mo. 1240 Presque Isle. Maine 950 1400 KVSO Ardmore, Okla. 1240 KXLE Ellensburg. Wash. WAGM KITS Springfield, Mo. 1370 WAGN Menominee. Mich. 1940 Nebr. 1510 KVWC Vernon. Tex. 1490 KXLF Butte. Mont. KTTT Columbus. KXL1 Helena. Mont. 1240 WAGR Lumberton. N.C. 580 Tucson, Ariz. 1400 KVWG Pearsall, Tex. 1280 KTUC 970 KXLL Missoula, Mont. 1450 WAGS Bishopville, S.C. 1380 , Tex. 1260 KVWM Show Low, Ariz. KVWO Cheyenne, Wyo. 1370 KXLO Lewiston, Mont, 1230 WAGY Forest City. N.C. 1920 KTW Seattle, Wash. 1250 Rock, Ark. 1150 WAIA College Park. Ga. 1570 Casper. Wyo. 1470 KVYL Holdenville, Okla. 1370 KXLR Little KTWO 1490 KXLW Clayton, Mo. 1320 WAIK Galesburg. Ill. 1590 KTXJ Jasper. Tex. 1950 KWAC Bakersfield, Calif. Wadena, Minn. 920 KXLY Spokane. Wash. 920 WAIL Baton Rouge. La. 1460 KTXO Sherman. Tex. 1500 KWAD 1230 K W A K Stuttgart, Ark. 1240 KXO El Centro. Calif. 1230 WAIM Anderson, S.C. KTYM Inglewood. Calif. 1460 Calif. 1470 WAIN Columbia. Ky. 1270 KUAI Eleele, Kanai, Hawaii 720 KWAL Wallace, Idaho 620 KXOA Sacramento, KWAM Memphis, Tenn. 990 KXOK St. Louis, Mo. 630 WAIR Winston- Salem. N.C. 1340 KUAM Agana, Guam 610 KXOL Ft. Worth, Tex. 1960 WAIT Chicago, Ill. 820 KUBA Yuba City. Calif. 1600 KWAT Watertown, S.Dak. 950 KWAY Forest Grove. Oreg. 1570 KXOX Sweetwater, Tex. 1240 WAIF Decatur, Ala. 1490 KUBC Montrose, Colo. 580 KXRA Alexandria, Minn. 1490 WAJR Morgantown, W.Va. 1440 KUBO San Antonio, Tex. 1310 KWBA Baytown, Tex, 1360 Kans. 1410 KXR1 Russellville, Ark. 1490 WAKE Atlanta. Ga. 1340 KUDE Oceanside. Calif. 1920 KW BB Wichita. 1230 K W BC Navasota, Tex. 1550 KXRO Aberdeen, Wash. 1320 WAKI McMinnville, Tenn. KUDI Great Falls, Mont. 1450 1500 S.C. 990 1380 KWBE Beatrice. Nebr. 1450 KXRX San Jose. Calif. WAKN Aiken. KUDL Fairway, Kan. KXXL Bozeman, Mont. 1450 WAKO Lawrenceville, Ill. 910 KUDU Ventura. Calif. 1590 KWBG Boone. Iowa 1590 KWBW Hutchinson, Kans. 1450 KXXX Colby, Kans. 790 WAKR Akron, Ohio 1590 KUDY Spokane, Wash. 1280 1920 WAKY Louisville, Ky. 790 Wash. 900 KWCB Searcy, Ark. 1900 KXYZ Houston, Tex. KU EN Wenatchee, San Francisco. Calif. 1260 WALD Walterboro, S.C. 1220 KUEQ Phoenix. Ariz. 740 l(WCL Oak Grove. La. 1280 KYA KWCO Chickasha, Okla. 1560 KYAC Kirkland, Wash. 1460 WALE Fall River, Mass. 1400 KUGN Eugene, Oreg. 590 1490 WALG Albany, Ga. 1590 1960 KWEB Rochester. Minn. 1270 KYCA Prescott. Ariz. KUIK Hillsboro. Oreg. Wheatland, Wyo. 1340 WALK Patchogue, N.Y. 1970 KUJ Walla Walla. Wash. 1420 KWED Seguin, Tex. 1580 KYCN KWEI Weiser, Idaho 1280 KYED Burlington, La. 1150 WALL Middletown, N.Y. 1340 KUKA San Antonio, Tex. 1250 950 WALM Albion, Mich. 1260 1400 KWEL Midland, Tex. 1440 KYES Roseburg, Oreg. KUKI Ukiah, Calif. Idaho 1450 WALO Humacao, P.R. 1240 KU KU Willow Springs, Mo. 1930 KWEW Hobbs, N.Mex. 1480 KTET Payette. KW FA Markle, Tex. 1500 KYJC Medford, Oreg. 1230 WALT Tampa, Fla. 1110 KULA Honolulu, Hawaii 690 740 WALY Herkimer. N.Y. 1420 KULE Ephrata, Wash. 730 KWFR San Angelo. Tex. 1260 KYME Boise. Idaho KWFS Eugene, Oreg. 1540 KYMN Oregon City. Ore. 1520 WAMD Aberdeen, Md. 970 KULP El Campo. Tex. 1390 Fla. 1260 1420 KWFT Wichita Falls. Tax. 620 KYND Tempe, Ariz. 1580 WAME Miami, KULY Ulysses, Kan. 1420 OOP, Ala. 860 1290 KWG Stockton, Calif. 1230 KYNG Coos Bay, Oreg. WAMI KUMA Pendleton, Oreg. 1300 WAML Laurel, Miss. 1340 Tex. 1400 KWHI Brenham, Tex. 1280 KYNO Fresno. Calif. KUNO Corpus Christi, 1450 WAMM Flint. Mich. 1420 KUOA Siloam Springs, Ark. 1290 KW H K Hutchinson. Kans. 1260 KYNT Yankton, S.Dak. 1590 WAMO Homestead, Pa. 868 KUOM Minneapolis, Minn. 770 KWHN Fort Smith, Ark. 1320 KYOK Houston, Tex. 1450 WAMR Venice, Fla. 1320 KUPD Tempe, Ariz. 1060 KWHO Salt Lake City. Utah 860 KYOR Blythe. Calif.

EXPERIMENTER 116 RADIO -TV

www.americanradiohistory.com C.L. Location Kc. C.L. Location Kc. C.L. Location Kc. C.L. Location Kc. WAMS Wilmington, Del. 380 WBBM Chicago, Ill. 780 WBT Charlotte, N.C. 110 WCMY Ottawa, Ill. 1430 WAMW Washington, Ind. 580 WBBO Forest City, N.C. 780 WBTA Batavia, N.Y. 490 WCNB Connersville, tad. 1580 WAMY Amory. Miss. 580 WBBQ Augusta. Ga. 1340 WBTC Uhrichsville, 0. 540 WCNC Elizabeth City. N.C. 1240 WANA Anniston, Ala. 490 WBBR Travelers Rest, S.C. 1580 WBTH Williamson, W.Va. 400 WCND Shelbyville, Ky. 940 WANB Waynesburg, Pa. 580 WBBT Lyons, Ga. 1340 WBTM Danville, Va. 330 WCNF Weldon, N.C. 1400 WANE Ft. Wayne, Ind. 450 WBBW Youngstown, Ohio 1240 WBTN Bennington, Vt. 370 WCNH Quincy, Fla. 1230 WANN Annapolis, Md. 190 WBBX Portsmouth, N.H. 1380 WBTO Linton, Ind. 600 WCNL Newport, N. H. 1010 WANS Anderson. S.C. 280 WBBZ Ponca City, Okla. 1230 WBTS Bridgeport, Ala. 480 WCNR Bloomsburg, Pa. 930 WANT Richmond, Va. 990 WBCA Bay Minette, Ala. 1150 WBUC Buckhannon, W.Va. 460 WCNS Canton, 0. 900 WANV Waynesboro, Va. 970 WBCB Levittown, Pa. 1490 WBUD Trenton, N.J. 260 WCNT Centralia, Ill. 1210 WANY Albany, Ky. 1990 WBCH Hastings. Mich. 1220 WBUG Ridgeland, S.C. 430 WCNU Crestview, Fla. 1010 WAOK Atlanta, Ga. 1380 WBCI Williamsburg, Va, 740 WBUT Butler, Pa. 050 WCNW Hamilton, O. 1560 WAOP Ostego, Mich. 980 WBCK Battle Creek, Mich. 930 WBUX Doylestown, Pa. 570 WCNX Middletown, Conn. 1150 WAOV Vincennes, Ind. 1450 WBCM Bay City, Mich, 1440 WBUY Lexington, N.C. 440 WCOA Pensacola, Fla. 1370 WAPA San Juan, P.R. 680 WBCO Bucyrus, Ohio 1540 WBUZ Fredonia, N.Y. 570 WCOC Meridian, Miss. 910 WAPC Riverhead, N.Y. 1570 WBCU Union, S.C. 1460 WBVL Barbourville, Ky. 950 WCOF Immokalee, Fla. 1490 WAPE Jacksonville, Fla. 690 WBEC Pittsfield, Mass. 1420 WBVM Utica, N.Y. 550 WCOG Greensboro. N.G. 1320 WAPF McComb, Miss. 980 WBEE Harvey, III. 1570 WBVP Beaver Falls, Pa. 230 WCOH Newnan, Ga, 1400 WAPG Arcadia, Fla. 480 WBEJ Elizabethton, Tenn. 1240 WBYE Calera; Ala. 370 WCOJ Coatesville, Pa. 1420 WAPI Birmingham. Ala. 070 WBEL Beloit, Wis. 1980 WBYG Savannah, Ga. 450 WCOL Columbus, Ohio 1230 WAPL Appleton, Wis. 570 WBEN Buffalo, N.Y. 930 WBYS Canton, Ill. 560 WCON Cornelia, Ga. 1450 WAPO Chattanooga. Tenn. 150 WBER Moncks Corner, S. C. 950 WBZ Boston, Mass. 030 WCOP Boston, Mass. 1150 WAPX Montgomery. Ala. 600 WBET Brockton, Mass. 460 WBZB Selma, N. C. 510 W CO R Lebanon, Tenn. 900 WAGE Towson, Md. 570 WBEU Beaufort, S.C. 960 WBZE Wheeling, W. Va. 470 WCOS Columbia, S.C. 1400 WAQI Ashtabula, Ohio 600 WBEV Beaver Dam, Wis. 430 WBZY Torrington, Conn. 990 WCOU Lewiston, Maine 1240 WAQY Birmingham, Ala. 220 WBEX Chillicothe. Ohio 490 WCA1 Fort Myers, Fla. 350 WCOV Montgomery, Ala. 1170 WARA Attleboro, Mass. 320 WBFD Bedford, Pa. 310 WCAL Northfield, Minn. 770 WCOW Sparta, Wis. 1290 WARB Covington, La. 730 WBFJ Woodbury, Tenn. 540 WCAM Camden, N.J. 310 WCOY Columbia, Pa. 1580 WARD Johnstown, Pa. 490 WBGC Chipley, Fla. 240 WCAO Baltimore, Md. 600 WCPA Clearfield, Pa, 900 WARE Ware, Mass. 250 WBGN Bowling Green, Ky. 340 WCAP Lowell, Mass. 980 WCPC Houston, Miss, 940 WARF Jasper. Ala. 240 WBGR Jesup, Ga. 370 WCAR Detroit, Mich. 1 130 WCPH Etowah, Tenn. 1220 WART Abbeville, Ala. 480 WBGS Slidell, La. 560 WCAT Orange, Mass. 1390 WCPM Cumberland, Ky. 1280 WARK Hagerstown, Md. 490 WBHB Fitzgerald, Ga. 240 WCAU Philadelphia, Pa. 1210 WCPO Cincinnati, Ohio 1230 WARM Scranton, Pa. 590 WBHC Hampton, S.C. 270 WCAW Charleston, W.Va. 680 WCPS Tarboro, N.C. 760 WARN Ft. Pierce, Fla. 330 WBHF Cartersville, Ga. 450 WCAY Cayce. S.C. 620 WCQS Alma, Ga. 1400 WARO Canonsburg, Pa. 540 WBHM Birmingham, Ala. 550 WCAZ Carthage, Ill. 990 WCRA Effingham, III. 1090 WART Moulton, Ala. 530 W BH P Huntsville, Ala. 230 WCBA Corning. N.Y. 1350 WCRB Waltham, Mass. 1330 WARU Peru, Ind. 600 WBHT Brownsville, Tenn. 520 WCBG Chambersburg, Pa. 1590 WCRE Cheraw, S.C. 1420 WASA Havre de Grace. Md. 330 WBIA Augusta, Ga. 230 WCBI Columbus, Miss, 550 WCRI Scottsboro, Ala. 1050 WASK Lafayette. Ind. 450 WBIB Centreville, Ala. 590 WCBL Benton. Ky. 1290 WCRK Morristown, Tenn. 1150 WATA Boone, N.C. 450 WBIC Islip, N.Y. 540 WCBM Baltimore, Md, 680 WCRL Oneonta, Ala. 1570 WATC Gaylord. Mich. 900 WBIE Marietta, Ga. 080 WCBS New York, N.Y. 880 WCRM Clare, Minh. 990 WATE Knoxville, Tenn. 620 WBIG Greensboro, N.C. 470 WCBT Roanoke Rapids, N.C. 1230 WCRO Johnstown, Pa. 1230 WATH Athens. Ohio 970 WBIL Leesburg, Fla. 410 WCBY Cheboygan, Mich. 1240 WCRS Greenwood, S.C. 1450 WATI Indianapolis, Ind. 810 WBIP Booneville, Miss. 400 WCCC Hartford, Conn. 1290 WCRT Birmingham, Ala. 1260 WATK Antigo, Wis. 900 WBIR Knoxville, Tenn. 240 WCCF Punta Gorda, Fla. 1580 WCRV Washington, N.J. 1580 WATM Atmore, Ala. 1590 WBIS Bristol, Conn. 440 WCCM Lawrence, Mass. 800 WCRW Chicago Ill. 1240 WATN Watertown. N.Y. 1240 WBIW Bedford, Ind. 340 WCCN Neillsville, Wis. 1370 WCRY Macon, Ga. 900 WATO Oak Ridge, Tenn. 1290 WBIX Jacksonville Beach, WCCO Minneapolis -St. Paul, WCSA Ripley, Mass. 1260 WATP Marion, S.C. 1430 Fla. 010 030 WCSC Charleston, S.C. 1990 WATR Waterbury, Conn. 1320 WBIZ Eau Claire, Wis. 400 WCCW Traverse City. bleb, 1310 WCSH Portland, Maine 970 WATS Sayre. Pa. 960 WBKH Hattiesburg, Miss. 950 WCDJ Edenton, N.C. 4 1260 WCSI Columbus, Ind. 1010 WATT Cadillac, Mich. 1240 WBKN Newton, Miss. 410 WCDL Carbondale, Pa. 1440 WCSJ Morris, Ill. 1550 WATV Birmingham, Ala. 900 WBKV West Bend, Wis. 470 WCDS Glasgow, Ky, 1440 WCSL Cherryville, N. C. 1590 WATW Ashland. Wis. 1400 WBLA Elizabethtown, N.C. 440 WCDT Winchester, Tenn. 1340 WCSM Celina, Ohio 1350 WATY N. Atlanta. Ga. 680 WBLC Lenoir City, Tenn. 360 WCEC Rocky Mount, N.C. 810 WCSR Hillsdale, Mich. 1340 WATZ Alpena, Mich. 1450 WBLE Batesville, Miss. 290 WCED DuBois, Pa. 1420 WCSS Amsterdam, N.Y. 1490 WAUB Auburn, N.Y. 1590 WBLF Bellefonte, Pa. 330 WCEF Parkeburg, W.Va. 1050 WCST Berkeley Springs. WAUC Wauchule, Fla, 1310 WBLG Lexington, Ky. 300 WCEH Hawkinsville, Ga. 610 W.Va. 1010 WAUD Auburn, Ala. 1230 WBLI Dalton, Ga. 230 WCEM Cambridge, Md. 1240 WCTA Andalusia, Ala. 920 WAUG Augusta, Ga. 1050 WBLO Evergreen, Ala. 470 WCEN Mt. Pleasant, Mich. 1150 WCTC New Brunswick. N.J. 1450 WAUK Waukesha, Wis. 1510 WBLR Batesburg, S.C. 430 WCER Charlotte, Mich. 1390 WCTR Chestertown, Md. 1590 WAVA Arlington, Va. 780 WELT Bedford, Va. 350 WCFL Chicago. Ill. 1000 WCTT Corbin. Ky. 680 WAVE Louisville, Ky. 970 WBLU Salem, Va. 480 WCFR Springfield, Vt. 1480 WCTW New Castle, led. 1550 WAVI Dayton, Ohio 1210 WBLY Springfield, Ohio 600 WCFV Clifton Forge, Va. 1230 WCUB Manitowoc, Wis. 980 WAVL Apollo. Pa. 910 WBMA Beaufort, N.C. 400 WCGA Calhoun, Ga. 900 WCUE Cuyahoga Falls, Ohio 1150 WAVN Stillwater, Minn. 1220 WBMC McMinnville, Tenn. 960 WCGC Belmont, N.C. 1270 WCUM Cumberland, Md. 1290 WAVO Avondale Estates, Ga. 1420 WBMD Baltimore. Md. 750 WCGO Chicago Hghts., Ill. 1600 WCVA Culpeper, Va. 1490 WAVP Avon Park, Fla. 1390 WBME Belfast, Mo. 1230 WCGR Canandaigua, N.Y. 1550 WCVI Connellsviile. Pa. 1340 WAVU Albertville, Ala. 630 WBMK West Point, Ga. 1310 WCHA Chambersburg, Pa. 800 WCVL Crawfordsville, Ind. 1550 WAVY Portsmouth, Va. 1950 WBML Macon, Ga. 1240 WCHB Inkster, Mich. 1440 WCVP Murphy, N.C. 600 WAVZ New Haven, Conn. 1300 WBMT Black Mountain, N.C. 1350 WCHE Westchester, Pa. 1520 WCVS Springfield, Ill. 1450 WAWA West Allie, Wis. 1590 WBNB Charlotte Amalie, WCHI Chillicothe, Ohio 1350 WCWA Toledo, O. 1230 WAWK Kendallville, Ind, 1570 Virgin Islands 1000 WCHI Brookhaven, Miss. 1470 WCWC Ripon, Wis. 1600 WAWZ Zarephath, N.J. 1380 WBNC Conway, N.H. 1050 WCH K Canton, Ga. 1290 WCWR Tarpon Springs, Fla. 1470 WAXE Vero Beach. Fla. 1370 WBNL Boonville, Ind. 1540 WCH L Chapel Hill, N.C. 1360 WCYB Bristol, Va. 690 WAXK Superior, Wis. 1320 WBNO Bryan, Ohio 1520 WCHN Norwich, N.Y. 970 WCYN Cynthiana, Ky. 1400 WAXU Georgetown. Ky. 1580 WBNR Beaton, N.Y. 1260 WCHO Washington Court WDAD Indiana, Pa. 1450 WAXX Chippewa Falls, Wis. 1150 WBNS Columbus. Ohio 1460 House, Ohio 1250 WDAE Tampa, Fla. 1250 WAYB Waynesboro, Va. 1490 WBNT Oneida, Tenn. 1310 WCHS Charleston, W.Va. 580 WDAF Kansas City, Mo. 610 WAYE Baltimore, Md. 860 WBNX New York, N.Y. 1380 WCHV Charlottesville, Va. 1260 WDAK Columbus, Ga. 540 WAYK Valparaiso, Ind. 1500 WBOB Galax, Va. 1360 WCI L Carbondale, III. 1020 WDAL Meridian, Mist. 1930 WAYN Rockingham, N.C. 900 WBOC Salisbury, Md. 960 WCIN Cincinnati, Ohio 1480 WDAN Danville, Ill. 1490 WAYR Orange Park, Fla. 550 WBOI( New Orleans. La. 800 WCIT Lima, Ohio 940 WDAR Darlington, S.C. 1350 WAYS Charlotte, N.C. 610 WBOL Bolivar, Tenn. 560 WCJU Columbia, Mies. 1450 WDAS Philadelphia, Pa. 1480 WAYX Waycross, Ga. 1230 WBOP Pensacola, Fla. 980 WCKB Dunn, N.C. 780 WDAX McRae, Ga. 1410 WAYZ Waynesboro. Pa. 1380 WBOS Brookline. Mass. 600 WCKD Ishpenning, Mich. 970 WDAY Fargo, N. Bak. 970 WAZA Bainbridge, Ga. 1360 WBOW Terre Haute, Ind. 230 WCI(I Greer. S.C. 900 WDBC Escanaba, Mich. 660 WAZE Clearwater, Fla. 860 WBOX Bogalusa, La. 920 WCKM Winnsboro, S.C. 250 WDBF Delray Beach. Fla. 1420 WAZF Yazoo City, Miss. 1230 WBOY Clarksburg, W.Va. 400 WCKY Cincinnati. Ohio 530 WDBJ Roanoke. Va. 960 WAZL Hazelton, Pa. 1490 WBPR Bayamon, P.R. 600 WCLA Claxton, Ga. 470 WDBL Springfield, Tenn. 1590 WAZS Summerville, S.C. 780 WBPZ Lock Haven, Pa. 230 WCLB Camilla. Ga. 220 WDBM Statesville, N.C. 550 WAZY Lafayette, Ind. 1410 WBRB Mt. Clemens, Mich. 430 WCLC Jamestown, Tenn. 260 WDBO Orlando. Fla. 580 WBAA West Lafayette. Ind. 920 WBRC Birmingham, Ala. 960 WCLD Cleveland. Miss. 490 WoBQ Dubuque, Iowa 1490 WBAB Babylon, N.Y. 1440 WBRD Bradenton, Fla. 420 WCLE Cleveland, Tenn. 570 WDCF Dade City. Fla. 1350 WBAC Cleveland, Tenn. 1340 WBRE Wilkes- Barre, Pa, 340 WCLG Morgantown, W.Va. 300 WDCR Hanover, N.H. 1340 WBAG Burlington, N.C. 1150 WBRG Lynchburg, Va. 050 WCLI Corning, N.Y. 450 WDDT Greenville, Miss. 900 WEAL Baltimore, Md. 1090 WBRI Indianapolis, Ind. 500 WCLO Janesville, Wis. 230 WBDY Gloucester, Va. 1420 WBAM Montgomery Ala. 740 WBRJ Marietta, 0. 910 WCLR Crystal Lake, III. 850 WDEA Ellsworth, Me. 1370 WBAP Fort Worth, 'Tex. 570 W BRK Pittsfield, Mass. 340 WCLS Columbus, Ga. 580 WDEC Americus. Ga. 1290 8c 820 WBRL Berlin, N.H. 400 WCLT Newark. Ohio 490 WDEE Hamden, Conn. 1220 WEAR Bartow, Fla. 1460 WBRM Marion, N.C. 250 WCLU Covington, Ky. 320 W D EF Chattanooga, Tenn. 1370 WBAT Marion, Ind. 1400 WBRN Big Rapids, Mich. 460 WCLW Mansfield, Ohio 570 WDEH Sweetwater, Tenn. 800 W BA W Barnwell. S.C. 740 WBRO Waynesboro, Ga. 310 WCMA Corinth, Miss. 290 WDEL Wilmington, Del. 1150 WBAX Wilkes- Barre, Pa. 1240 WBRV Boonville. N.Y. 900 WCMB Harrisburg, Pa. 460 WDEV Waterbury, Vt. 550 WBAY Green Bay, Wis. 1360 WBRW Brewster, N.Y. 510 WCMC Wildweod, N.J. 230 WDEW Westfield, Mast. 1570 WBAZ Kingston, N.Y. 1550 WBRX Berwick. Pa. 280 WCME Brunswick. Maine 900 W DGL Douglasville, Ga. 1520 WBBA Pittsfield, III. 1580 WBRY Waterbury. Conn. 590 WCM I Ashland, Ky. 340 WDGY Minneapolis, Minn. 1130 WBBB Burlington, N.C. 920 WBSA Boaz, Ala. 300 WCMN Arecibo, P.R. 280 WDIA Memphis, Tenn. 1070 WBBF Rochester. N.Y. 950 WBSC Bennetsville, S.C. 550 WCMP Pine City, Minn. 950 WDIC Clinchco, Va. 1430 WBBI Abingdon, Va. 1230 W BSG Blackshear, Ga. 950 WCMR Elkhart, Ind. 270 WDIG Dothan, Ala. 1450 WBBK Blakely, Ga, 1260 WBSM New Bedford. Mass. 420 WCMS Norfolk, Va. 050 WDIX Orangeburg, S.C. 1150 WBBL Richmond, Va. 1480 WBSR Pensacola, Fla, 540 WCMT Martin. Tenn, 410 W DJS Mt. Olive, N.C. 1490

JANUARY, 1966 117

www.americanradiohistory.com C.L. Location Kc. C.L. Location Kc. C.L. Location Kc. WEJL Scranton, Pa. 630 WFIG Sumter. S.C. 1290 WGML Hinesville, Ga. 990 W E K R Fayetteville, Tenn. 1240 WFIL Philadelphia, Pa. 560 WGMM Millington, Tenn. 1380 WEKY Richmond, Ky. 1540 WFIN Findlay, Ohio 1330 WGMS Washington, D.C. 570 WEKZ Monroe. Wis. 1260 WFIS Fountain Inn. S.C. 1600 WGN Chicago, Ill. 720 WELB Elba. Ala, 1350 WFIV Kissimmee, Fla. 1080 WGNC Gastonia, N.C. 1450 WELC Welch, W.Va. 1150 WFIW Fairfield. Ill. 1990 WGNE Panama City WELD Fisher, W.Va. 690 WFIX Huntsville. Ala. 1450 Beach, Fla. 1480 WELE S. Daytona, Fla. 1590 WFKN Franklin, Ky, 1220 WGNI Wilmington, N.C. 1450 WELT New Haven, Conn. 960 WFKY Frankfort, Ky. 1490 WGNP Indian Rocks Beach, WELK Charlottesville, Va. 1010 WFLA Tampa, Fla. 970 Fla. 1520 C.L. Location Kc. WELM Elmira, N.Y. 1410 WFLB Fayetteville, N.C. 1490 WGNS Murfreesboro, Tenn. 1450 WELO Tupelo, Miss. 580 WFLI Lookout Mtn., Tenn. 1070 WGNU Granite City, III. 920 WDKD Kingstree, S. C. 1310 WELP Easley, S.C. 0360 WFLN Philadelphia, Pa. 900 WGNY Newburgh, N.Y. 1220 WDKN Dickson. Tenn. 1260 WELR Roanoke. Ala. 1360 WFLO Farmville, Va. 870 WGOE Richmond, Va. 1590 WDLA Walton. N.Y. 1270 WELS Kinston, N.C. 1010 WFLR Dundee, N.Y. 1570 WGOG Walhalla, 5. C. 1000 W D LB Marshfield. Wis. 1450 WELV Ellenville, N. Y. 1370 WFLS Fredericksburg, Va. 1950 WGOH Grayson, Ky. 1370 WDLC Port Jervis, N.Y. 1490 WELW Willoughby, O. 1330d WFLW Monticello, Ky. 1360 WGOK Mobile, Ala. 900 W D LR Delaware, Ohlo 1550 WELY Ely, Minn. 1450 WFMC Goldsboro, N.C. 730 WGOL Goldsboro, N.C. 1300 WDLM E. Moline, III. 960 WELZ Belzoni, Miss, 1460 WFMD Frederick, Md. 930 WGON Munising, Mich. 1400 WDLP Panama City. Fla. 590 WEMB Erwin, Tenn. 1420 WFMH Cullman, Ala. 1460 W G00 Georgetown, S. C. 1470 WDLT Indianola, Miss. 1980 WEMD Easton, Md. 1460 WFMJ Youngstown, Ohio 1390 WGOV Valdosta, Ga. 950 WDMG Douglas, Ga. 860 WEMJ Laconia, N.H. 1490 WFMO Fairmont, N.C. 860 WGPA Bethlehem, Pa. 1100 WDMJ Marquette. Mich. 1920 WEMP Milwaukee, Wig, 1250 WFMW Madisonville. KY. 730 WGPC Albany, Ga. 1450 WDMS Lynchburg, Va. 1320 WENC Whiteville, N.C. 1220 WFNC Fayetteville, N.C. 1390 WGR Buffalo, N.Y. 550 W D M V Pocomoke City, Md. 540 WEND Edensburg, Pa, 1580 WFNL No. Augusta, S.C. 1600 WGRA Cairo, Ga. 790 WDNC Durham, N.C. 620 WENE Endicott, N.Y. 1490 WFOB Fostoria, Ohio 1430 WGRD Grand Rapids. Mich. 1410 WDNE Elkins, W.Va. 1240 W EN G Englewood, Fla. 1530 WFOM Marietta, Ga. 1230 WGRI Griffin, Ga. 1410 WDNG Anniston, Ala. 1450 WENK Union City, Tenn, 1240 WFOR Hattiesburg, Miss. 1400 WGRM Greenwood, Misa, 1240 WDNT Dayton,Tenn, 1280 WENN Birmingham, Ala. 1920 WFOX Milwaukee, Wis. 860 WGRO Lake City. Fla. 960 WDOB Canton. Miss. 1970 WENO Madison, Tenn. 1430 WFOY St. Augustine. FIa, 1240 WGRP Greenville, Pa. 940 WDOC Prestonsburg. KY. 1310 WENT Gloversville, N.Y. 1340 WFPA Fort Payne, Ala. 1400 WGRV Greeneville, Tenn. 1340 WDOD Chattanooga. Tenn. 1310 WENY Elmira, N.Y. 1230 WFPG Atlantic City, N.J. 1450 WGSA Ephrata, Pa. 1310 WDOE Dunkirk, N.Y. 1410 WENZ Highland Springs, WFPM Fort Valley. Ga. 1150 WGSB Geneva, Ill. 1480 WDOG Marine City. Mich. 1590 Va. 1450 WFPR Hammond, La. 1400 WGSM Huntington, N.Y. 740 WDOK Cleveland. Ohio 1260 WEOK Poughkeepsie, N.Y. 1390 WFRA Franklin, Pa. 1450 WGSR Millen, Ga. 1570 WDOL Athens. Ga. 1470 WEOL Elyria. Ohio 930 WEBB Frostburg, Md. 560 WGST Atlanta, Ga. 920 WDON Wheaton, Md. 1540 WEPG S. Pittsburgh, Tenn. 910 WFRC Reidsville. N.C. 1600 WGSV Guntersville, Ala, 1270 WDOR Sturgeon Bay, Wis. 910 WEPM Martinsburg, W.Va. 1340 WFRL Freeport, Ill, 1570 WGSW Greenwood, S.C. 1350 WDOS Oneonta. N.Y. 730 WERA Plainfield, N.J. 1590 WFRM Coudersport, Pa, 600 WGTA Summerville. Ga. 950 WDOT Burlington. Va. 1400 WERB Garden City, Mich. 1090 WFRO Fremont. Ohio 900 WGTC Greenville, N.C. 1590 WDOV Dover. Del. 1410 WERD Atlanta. Ga. 860 WFRX West Frankfort, Ill. 1300 WGTL Kannapolis, N.C. 870 WDOW Dowegiae, Mlak. 1440 WERE Cleveland, Ohio 1900 WFSC Franklin. N.C. 1050 WGTM Wilson, N.C. 590 WDQN DuQuoin, III. 1580 WERH Hamilton, Ala. 970 WFSG Boca Raton, Fla. 740 WGTN Georgetown, S.C. 1400 WDRC Hartford, Conn. 1360 WERT Westerly, R.I. 0230 WFSO Pinellas, FIa. 570 W GTO Cypress Gardens. Fla. 540 WDSC Dillon. S.C. 800 WERK Muncie, Ind. 990 WFSR Bath. N.Y. 1380 WGUL New Port Richey. Fla. 1500 WDSG Dyersburg. Tenn. 1450 WERL Eagle River, Wis. 950 WEST Caribou, Maine 600 WGUN Atlanta- Decatur, WDSK Cleveland. Miss. 1410 WERT Van Wert. Ohio 1220 WFTC Kinston, N.C. 960 Ga. 1010 WDSL Moekaville, N. C. 1520 WERX Wyoming, Mich. 1530 WFTG London, Ky. 1400 WGUS North Augusta, S.C. 1980 WDSM Superior. Wis. 710 WESA Charleroi. Pa. 940 WFTL Ft. Lauderdale, Fla, 1400 WGUY Bangor, Maine 1250 WDSP DeFuniak Springs, WESB Bradford. Pa. 1490 WFTM Maysville, KY. 1240 WGVA Geneva, N.Y. 1240 Florida 1280 WESC Greenville, S.C. 660 WFTN Franklin, N.H. 1240 WGVM Greenville, Miss, 1260 WDSR Lake City, Fla. 1340 WESO Southbridge, Mass, 970 WFTR Front Royal, Va. 1450 Ala. 1940 Gainesville. 1240 WGWC Selma, WDUN Ga. WESR Tasley, Va. 1390 WFTW Ft. Walton Beach. W G W R Asheboro, N.C. 1260 WDUX Waupaca, Wis. 800 WEST Easton, Pa. 1400 Florida 1260 WGY Schenectady, N.Y. 810 WDUZ Green Bay. Wls. 1400 WESX Salem, Mass, 1230 WFUL Fulton, Ky. 1270 WGYV Greenville, Ala. 1380 WDVA Danville. Va. 1250 W ESY 1580 WFUR Grand Rapids. Mich. 1570 Leland. Miss, W G Y W Fountain City, Tenn. 1459 WDVH Gainesville. Fla. 980 WEIB Johnson City. Tenn. 790 WFVA Fredericksburg, Va. 1230 WHA Madison. Wis. 750 WDVL Vineland, N.J. 1270 WETC Wendell.Zebulon, N.C. 540 WFVG Fuquay Sprgs., N.C. 1460 WHAB Baxley, Ga. 1260 W D W D Dawson, Ga. 990 WETH St. Augustine, Fla. 1420 W F W L Camden, Tenn, 1220 WHAG Halfway. Md. 1410 WDWS Champaign, III. 1400 W ETO Gadsden: Ala. 930 WFYC Alma, Mich. 1280 WHAI Greenfield, Mass. 1240 WDXB Chattanooga, Tenn. 1490 WETT Ocean City, Md. 1590 WFYI Mineola, N.Y. 1520 WHAK Rogers City, Mich. 960 WDXE Lawrenceburg, Tenn. 1370 WETU Wetumpka, Ala, 1250 WGAA Cedartown, Ga, 1940 WHAL Shelbyville, Tenn. 1400 WDXI Jackson. Tenn. 1310 WETZ New Martinsville. WGAC Augusta, Ga. 580 WHAM Rochester, N.Y. 1180 WDXL Lexington. Tenn. 1490 inia 1390 WGAD Gadsden, Ala. 1350 WHAN Haines City, Fla. 930 WDXN Clarksville, Tenn, 540 WEUC Ponce, P.R. 1420 WGAF Valdosta, Ga. 910 WHAP Hopewell, Va. 1340 WDXR Paducah, Ky. 1560 WEUP Huntsville, Ala. 1600 WGAI Elizabeth City, N.C. 560 WHAR Clarksburg. W.Va. 1340 W DXY Sumter, S.C. 1240 WEVA Emporia, Va, 860 WGAL Lancaster. Pa. 490 WHAS Louisville, Ky. 840 WDYX Buford, Ga. 1460 WEVD New York, N.Y. 1330 WGAN Portland, Maine 560 400 WHAT Philadelphia, Pa. 1940 WDZ Decatur. III. 1050 WEVE Eveleth, Minn. 1940 WGAP Maryville, Tenn. WHAV Haverhill, Mass. 1490 WEAB Greer, S.C. 800 WEW St. Louis. Mo. 770 WGAR Cleveland. Ohio 220 980 1500 420 WHAW Weston, W.Va. WEAC Gaffney, S. C. WEWO Laurinburg. N.C. 1080 WGAS S. Gastonia, N.C. N.Y. 1390 1570 WGAT Gate Va. 050 WHAZ Troy, WEAD College Park, Ga. WEXL Royal Oak. Mich. 1340 City, WHB Kansas City, Mo. 710 WEAG Alcoa, Tenn. 1470 WEXT W. Hartford, Conn. 1550 WGAU Athens, Ga. 340 1490 1510 WHBB Selma, Ala. WEAL Greensboro, N. C. WEYE Sanford, N.C. 1290 WGAW Gardner, Mass. 340 Canton. Ohio 1480 1390 1580 WGBA Ga. 270 WHBC WEAM Arlington. Va. WEYY Talladega, Ala. Columbus, WHBF Rock Island. Ill. 1270 WEAN Providence. R.I. 790 WEZE Boston, Mass. 1260 WGBB Freeport, N.Y. 240 Va. 1360 Eau Wis. 790 1440 WGBC Chipley, Fla. 240 WHBG Harrisonburg. WEAQ Claire, WEZ1 Williamsburg. Ky. WHBL Sheboygan, Wis. 1990 WEAS Savannah, Ga. 900 WEZQ Winfield, Ala. 1300 WGBF Evansville. Ind. 280 1420 400 WHBN Harrodsburg, Ky. WEAT W. Palm Beach, Fla. 850 WEZY Cocoa, Fla. 1350 WGBG Greensboro, N.C. 1050 WGBI 910 WHBO Tampa, Fla. WEAV Plattsburg, N.Y. 960 WFAA Dallas, Tex. 570 Scranton, Pa. WHBQ Memphis, Tenn. 560 W EA W Evanston. III. 1330 820 WGBR Goldsboro, N. C. 150 710 W H BT Harriman, Tenn. 1600 WEBB Baltimore. Md. 1360 WFAB Miami, Fla. 990 WGBS Miami, Fla. 1240 1250 Red Pa. 440 WHBU Anderson, Ind. WEBC Duluth. Minn. 560 WFAG Farmvilla, N.C. WGCB Lion. 1290 1310 WGCD Chester, S.C. 490 WHBY Appleton. Wis. WEB) Brewton. Ala. 1240 WFAH Alliance. Ohio WHCC Waynesville, N.C. 1400 WEBO Owego, N.Y. 1990 WFAI Fayetteville, N.C. 1290 WGCH Greenwich, Conn. 490 Miss. 240 WHCO Sparta, Ill. 1230 WEBQ Harrisburg. Ill. 1240 WFAR Farrell, Pa. 1470 WGCM Gulfport, 1400 1230 WGEA Geneva, Ala. 150 WHCQ Spartanburg. S.C. WEBB Buffalo. N.Y. 970 WFAS White Plains, N.Y. 870 1330 WFAU Augusta, Me. 1340 WGEE Indianapolis. Ind, 590 WHCU Ithaca. N.Y. WEBY Milton. Fla. WHOF Houghton, Mich. 1400 Eau Wis. 1050 WFAW Ft. Atkinson, Wis. 940 WGEM Quincy. 111. 440 WECL Claire. W H D H Boston, Mass, 850 1240 WFAX Falls Church, Va. 1220 WGET Gettysburg, Pa. 920 WEDC Chicago. Ill. W H D L Olean. N.Y. 1450 WEDO McKeesport. Pa. 810 W FBA San Sebastion, P.R. 1460 WGEZ Beloit, Wis. 490 WFBC 1330 WGFA Watseka, Ill. 360 WHDM McKenzie. Tenn. 1440 WEEB Southern Pines, N.C. 990 Greenville. S.C. Portsmouth, N.H. 750 Mount. N.C. 1390 WFBF Fernandina Beach, WGFS Covington, Ga. 430 WHEB WEED Rocky W H EC Rochester. N.Y. 1460 WEEE Rensselaer, N.Y. 1900 Fla. 1570 WGGA Gainesville, Ga, 550 Pa. 1290 WGGG Gainesville. Fla. 230 WHEE Martinsville, Va. 1370 WEEF Highland Park, III. 1430 WFBG Altoona, 620 590 WFBL Syracuse, N.Y. 1390 WGGH Marion, Ill. 150 WHEN Syracuse. N.Y. WEEI Boston. Mass. WHEO Stuart, Va. 1270 WEEL Fairfax. Va. 1310 WFBM Indianapolis, Ind, 1260 WGGO Salamanca, N.Y. 590 1300 WGH Newport News. Va, 310 WHEP Foley, Ala. 1910 WEEN Lafayette, Tenn. 1460 WFBR Baltimore, Md. 1430 N. 1450 WGHC Clayton, Ga, 570 WHER Memphis. Tenn. WEEP Pittsburgh, Pa. 1080 WEBS Spring Lake, C. Beach, Fla. 1600 1570 Flint. Mich. 910 W G H M Skowegan, Maine 150 WHEW Rivema WEER Warrenton, Va. WFDF WHFB Benton Harbor -St, WEET Richmond, Va. 1320 WFDR Manchester, Ga. 1370 WGHN Grd. Haven. Mich. 970 Manchester, N.H. 1370 WGHQ Kingston. N.Y. 920 Joseph. Mich. 1060 W EEU Reading, Pa. 850 WFEA WHGR Houghton L.. Mich, 1290 WEEW Washington, N.C. 1320 WFEB Sylacauga, Ala. 1340 WGIG Brunswick. Ga. 440 Harrisburg, Pa. 1400 WGIL Galesburg, III. 400 WHHH Warren, Ohlo 1440 WEEX Easton, Pa. 1230 WFEC Hill. S.C. 1440 Pa. 1590 WFFF Columbia, Miss. 1360 WGIR Manchester, N.H. 610 WHHL Holly WEEZ Chester, 600 WHHT Lucedale, Miss. 1440 WEGO Concord. N.C. 1410 WFFG Marathon, Fla. 1300 WGIV Charlotte, N.C. 960 WGKA Atlanta. Ga. 600 WHHV Hilisville, Va. 1400 WEGP Presque Isle, Maine 1390 WFGM Fitchburg. Mass. 1440 WFGN Gaffney. S.C. 1570 WGKR Perry, Fla. 310 WHHY Montgomery, Ala. WEHH Elmira Heights. 490 WHIE Griffin. Ga. 1320 Horseheads, N. Y. 1590 WFGW Black Mountains. WGKV Charleston, W. Va. N.C. 1010 WGL Fort Wayne. Ind. 250 WHIR Portsmouth, Va. 1400 WEIC Charleston. Ill. 1270 1490 W. Va. 1370 WFHG Bristol. Va. 980 WGLB Port Wash., Wis. 560 WHIL Medford, Mass. WEIF Moundsville, 1110 Mass. 1280 WFHK Pell City. Ala. 1430 WGLC Mendota, Ill. 090 WHIM Providence, R.I. WEIM Fitchburg. 1010 1490 WFHR Wis. Rapids, Wis. 1920 WGLI Babylon. N.Y. 290 WHIN Gallatin, Tenn. WEIR Weirton. W.Va. 1290 WElS Center. AI., 990 WFIF Milford, Conn, 1500 WGMA Hollywood. Fla. 320 WHIO Dayton, Ohlo

118 RADIO -TV EXPERIMENTER

www.americanradiohistory.com C.L. Location Re. C.L. Location Kc. C.L. Location Ka. C.L. Location Re. WHIP Mooresville, N.C. 350 WI LM Wilmington, Del. 1450 WJEM Valdosta, Ga. 150 WKID Urbana, Ill. 1580 WHIR Danville, Ky. 230 WI LO Frankfort, Ind. 1570 W1 ER Dover, Ohio 450 WKIG Glenville, Ga. 1580 WH IS Bluefield, W.Va. 440 WILS Lansing, Mich. 1320 WJES Johnston, S.C. 570 WI(ll( Leonardtown, Md. 1370 WHIT New Bern, N.C. 450 WILZ St. Petersburg Beach, WJET Erie, Pa. 400 WI(IN Kingsport, Tenn. 1320 WHIY Orlando, Fla. 270 Florida 1590 WJFC Jefferson City, Tenn. 480 WI

JANUARY, 1966 o119

www.americanradiohistory.com WHITE'S C.L. Location Kc. C.L. Location Kc. C.L. Location Kc. WMAC Netter, Ga. 1360 WMRI Marion. Ind. 860 WNWI Northwestern, Ind. 1080 WMAD Madison, Wis. 1550 WMRN Marion, Ohio 1490 WNXT Portsmouth, Ohio 1260 WMAF Madison, Fla. 1230 W M RO Aurora, Ill. 1280 WNYC New York, N.Y. 830 QaEXIo WMAG Forest, Miss. 860 WMRP Flint, Mich. 1570 WOAI San Antonio. Tex. 1200 WMAJ State College. Pa. 1450 WMRR Marshall, Mich. 1540 WOAP Owosso. Mich. 1080 WMAK Nashville, Tenn. 1300 WMSA Massena. N.Y. 1340 WOAY Oak Hill. W.Va. 860 WMAL Washington, D.C. 630 WMSG Oakland, Md. 1050 WOBS Jacksonville, Fla. 1360 ao21 WMAM Marinette. Wis. 570 WMS1 Sylva, N.C. 1480 WOBT Rhinelander, Wis. 1240 WMAN Mansfield. Ohio 1400 WMSK Morganfield, Ky. 1550 WOC Davenport, Iowa 1420 WMAP Monroe, N.C. 1060 WMSL Decatur, Ala. 1400 WOCB W. Yarmouth, Mass. 1240 Location Kc. WMAQ Chicago. Ill. 670 WMSR Manchester, Tenn. 1320 WOCH North Vernon. Ind. 1460 C.L. WMAS Springfield, Mass. 1450 WMST Mt. Sterling, Ky. 1150 WOCK Okeechobee, Fla. 1570 900 WLBH Mattoon. 1170 WMAT Lansing. Mich. 1010 WMT Cedar Rapids, Iowa 600 WODY Bassett, Va. III. 1540 WLBI Denham Springs, La. 1220 WMAX Grand Rapids. Mich. 1480 WMTA Central City, Ky. 1380 WOGA Sylvester, Ga. WLBJ Bowling Green, Ky. 1410 WMAY Springfield. Iii. 970 WMTC Vancleve, KY. 730 WOHI E. Liverpool. Ohio 1490 WLBK DeKalb. III. 1360 WMAZ Macon. Ga. 940 WMTD Hinton, W. Va. 1380 WOHO Toledo, Ohio 1470 WLBL Auburndale, 930 WMBA Ambridge, Pa. 1460 WMTE Manistee, Mich. 1340 WOHP Bellefontaine, Ohio 1390 Wis. 730 WLBN Lebanon, Ky. 1590 WMBC Macon. Miss. 1400 WMTL Leitchfield, Ky. 1580 WOHS Shelby, N.C. WLBR Lebanon. Pa. 1280 WMBD Peoria, Ill. 1470 WMTM Moultrie. Ga. 1300 WOI Ames. Iowa 640 WMBG Richmond, Va. 1380 WMTN Morristown, Tenn. 1300 WO1B Saline, Mich. 1290 WLBZ Bangor, Maine 620 1320 WLCB Moulton, Ala. 1530 WMBH Joplin, Mo. 1450 WMTR Morristown, N.J. 1250 WOIC Columbia. S.C. WMBI Chicago, III. 1110 WMTS Murfreesboro, Tenn, 810 WOKA Douglas, Ga. 1310 WLCK Scottsville, Ky. 1250 1600 1360 WMBL Morehead City, N.C. 740 WMUS Muskegon, Mich. 1090 WOKB Winter Garden, Fla WLCM Lancaster, S.C. 1340 WLCN Laurensburg, N.C. 1300 WMBM Miami Beach, Fla. 1490 WMUU Greenville. S.C. 1260 WOKE Charleston, S.C. 1450 WLCO Eustis, Fla. 1240 WMBN Petoskey, Mich. 1340 WMVA Martinsville, Va. 1450 WOKK Meridian, Miss. 1460 WLCS Baton Rouge, La. 910 WMBO Auburn. N.Y. 1340 WMVB Millville, N.J. 1440 W01(0 Albany. N.Y. 1450 Ga. 1340 WLCX LaCrosse, Wis. 1490 WMBR Jacksonville. Fla. 1460 WMVG Milledgeville, Ga. WOKS Columbus. WLCY Petersburg, WMBS Uniontown, Pa. 590 WMVO Mt. Vernon. Ohio 1300 WOKW Brockton, Mass. 1410 St. Fla. 1380 Milwaukee. Wis. 920 WLDB Atlantic City, N.J. 1490 WMBT Shenandoah, Pa. 1530 WMVR Sidney, Ohio 1080 WOI(Y Wilmington, 1090 WOKZ Alton. III. 1570 WLDS Jacksonville. III. 1180 WMC Memphis. Tenn. 790 WMWM O. WMCA New York. N.Y. 570 WMYB Myrtle Beach. S.C. 1450 WOL Washington. D.C. 1450 WLDY Ladysmith, Wis. 1340 WOLD Marion, Va. 1330 WLEA Hornell. N.Y. 1480 WMCH Church Hill, Tenn. 1260 WMYN Mayodan, N.C. 1420 WMCK McKeesport, Pa. 1360 WMYR Ft. Myers, Fla. 1410 WOLF Syracuse. N.Y, 1490 WLEC Sandusky, Ohio 1450 WOLS Florence, S. C. 1230 WLEE Richmond. Va. 1480 WMCP Columbia, Tenn. 1280 WNAB Bridgeport, Conn. 1450 W O M I Owensboro. KY. 1490 WLEF Greenwood. Miss. 1540 WMCR Oneida, N.Y. 1600 WNAC Boston, Mass. 680 WMCW Harvard, Ill. 1600 WNAD Norman. Okla. 640 WOMN Decatur, Ga. 1310 WLEM Emporium. Pa. 1240 WOMP Bellaire, Ohio 1290 WLES Lawrenceville, Va. 580 WMOC Hazlehurst, Miss. 1220 WNAE Warren, Pa. 1310 W M D D Fajardo. P.R. 1480 WNAG Grenada, Miss. 1400 WOMT Manitowoc. Wis. i 1240 WLET Toccoa, Ga. 1420 WONA Winona. Miss. 1570 WLEW Bad Axe. 1340 WMDN Midland. Mich. 1490 WNAH Nashville, Tenn. 1360 Mich. 730 WON D Pleasantville. N.J. 1400 WLFA Lafayette, Ga. 1590 WMEG Eau Gallia, Fla. 920 WNAK Nanticoke, Pa. Neenah. 1280 WONE Dayton. Ohio 980 WLFH Little Falls, N.Y. 1230 WMEK Chase City. Va. 980 WNAM Wis. WMEL Pensacola, Fla. 610 WNAR Norristown, Pa. 1110 WONN Lakeland, Fla. 1230 WLIB New York. N.Y. 1190 WONS Tallahassee, Fla. 1410 WLIJ Shelbyville,Tenn, 1580 WMEN Tallahassee, Fla. 1330 WNAT Natchez, Miss. 1450 WMEV Marion. Va. 1010 WNAU New Albany. Miss. 1470 WONW Defiance, Ohio 1280 W LI K Newport, Tenn. 1270 WOOD Grand Rapids. Mich. 1300 WLIL Lenoir City. Tenn. 730 WMEX Boston, Mass. 1510 WNAV Annapolis, Md. 1430 WMFC Monroeville. Ala. 1360 WNAX Yankton, S.Dak. 570 WOOF Dothan. Ala. 560 WLIP Kenosha, Wis. 1050 WOOK Washington, D.C. 1340 WLIQ Mobile, Ala. 1360 WMFD Wilmington. N.C. 630 WNBC New York, N.Y. 660 1240 1290 W000 Deland, Fla. 1310 WLIS Old Saybrook, Conn. 1420 WMFG Hibbing, Minn. WNBF Binghamton, N.Y. WMF1 Daytona Beach, Fla. 1450 WNBH New Bedford. Mass. 1340 WOOW Greenville, N.C. 1340 WLIV Livingston, Tenn. 920 1470 WOPA Oak Park, III. 1490 Lake 1380 WMFR High Point, N.C. 1230 WNBP Newburyport, Mass. WLIZ Worth, Fla. 1340 WOPI Bristol. Tenn. 1490 WLKM Three Mich. 1510 WMGA Moultrie. Ga. 1400 WNBS Murray, Ky. Rivers. 930 WNBT Wellsboro, Pa. 1490 WOR New York, N.Y. 710 WLKN Lincoln, Me. 1450 WMGR Bainbridge, Ga. 760 WMGS Bowling Green. Ohio 730 W N BZ Saranac Lake. N.Y. 1240 WORA Mayaguez, P.R. WLKS W. Liberty, Ky. 1450 WORC Worcester. Mass. 1310 WLKW Providence, 990 WMGW Meadville, Pa. 490 WNCA Siler City, N.C. 1570 R.I. WMGY Montgomery, Ala, 800 WNCC Barnesboro, Pa. 950 WORD Spartanburg. S.C. 910 WLLE Raleigh, N.C. 570 WNCG N. Charleston, S.C. 910 WORG Orangeburg, S.C. 1580 WLLH Lowell. Mass. 1400 WMIA Arecibo, P. R. 070 WMID Atlantic City. N.J. 340 WNCO Ashland. Ohio 1340 WORK York. Pa. '1350 WLLI Brookneal, Va. 1230 Greenville, 1590 WORL Boston. Mass. 950 WLLL Lynchburg, Va. 930 WMIE Miami, Fla. 140 WNCT N. C. WMIK Middlesboro, Ky. 560 WNDB Daytona Beach, Fla. 1150 WORM Savannah. Tenn. 1010 WLLY Wilson, N.C. 1350 1260 WORT New Smyrna Beach, 900 WMIL Milwaukee, Wis. 290 WNDR Syracuse. N.Y. WLMD Laurel, Md. 400 Ind 1490 Florida 1550 WLNC Laurinburg, N.C. 1300 WMIN Mpls. -St. Paul, Mine. WNDU South Bend WMIQ Iron Mountain, Minh. 450 WN EB Worcester, Mass. 1230 WORX Madison. Ind. 1270 WLMJ Jackson, Ohio 1280 630 WOSC Fulton. N.Y. 1300 1420 W M I R Lake Geneva, Wis. 550 WN EG Tama, Ga. WLNA Peekskill. N.Y. Caguas, P. R. 1430 WOSH Oshkosh, Wis. 1490 Sag Harbor, 1600 WMIS Natchez. Miss. 240 WN EL WLNG N.Y. ER Oak. Fla. 1250 WOSL Kissimmee, Fla. 1220 Laconia, 1350 WMIX Mt. Vernon. Ill. 940 WN Live WLNH N.H. 490 WN ES Central City, Ky. 1050 WOSU Columbus. Ohio 820 WLOA Braddock. Pa. 1550 WMIM Cordele, Ga. Me. 240 WN EW New York, N.Y. 1130 WOTR Corry. Pa. 1370 WLOB Portland, Maine 1310 WMKR Millìnocket, 1410 WMLF Pineville, Ky. 230 WN EX Macon, Ga. 1400 WOTT Watertown, N.Y. WLOC Munfordville, Ky. 1150 WN GA Nashville, Ga. 1600 WOTW Nashua. N.H. 900 Pompano Beach. Fla. 980 WMLO Beverly, Mass, 570 WLOD Pa. 380 WN GO Mayfield, Ky. 1320 WOUB Athens, Ohio 1340 WLOE Leaksville, N.C. 1490 WMLP Milton, 1340 WMLS Sylacauga, Ala. 290 WN NC New Haven, Conn. 1340 WOVE Welch, W.Va. WLOF Orlando, Fla. 950 WNIA Cheektowaga, N.Y. 1230 WOW Omaha. Nebr. 590 WLOG Logan, W.Va. 1230 WMLT Dublin. Ga. 330 Melbourne, Fla. 240 WNIK Arecibo, P.R. 1290 WOWL Florence, Ala. 1240 WLOH Princeton. W.Va. 1490 WMMB Ft. Wayne. Ind. 1190 W M M H Marshall, N.C. 460 WNIL Niles, Mich. 1290 WOWO WLOI LaPorte, Ind. 1540 300 1540 WOWW Naugatuck, Conn. 860 1340 W M MJ Lancaster, N.Y. WNIO Niles, Ohio WLOK Memphis, Tenn. 260 W NJ Hammonton, N.J. 1580 WOWY Clewiston, Fla, 500d 1330 W M M M Westport, Conn. WLOL Minneapolis, Minn. 920 WN1R Newark, N.J. 1430 WOXF Oxford. N.C. 1340 WLON Lincolnton, N.C. 1050 WMMN Fairmont, W.Va. 900 M M 470 WNKY Neon, Ky. 1480 WOZK Ozark. Ala. WLOR Thomasville. Ga. 730 W W Meriden, Conn. WMNA Gretna. Va. 730 WNLC New London. Conn, 1510 WPAB Ponce. P.R. 550 WLOS Asheville. N.C. 1380 Conn. 1350 WPAC Patchogue, N.Y. 1580 1350 WMNB No. Adams. Mass. 230 WNLK Norwalk. WLOU Louisville, Ky. 430 WNMP Evanston. Ill. 1590 WPAD Paducah, Ky. 1450 WLOV Washington, Ga. 1370 WMNC Morganton. N.C. 1050 WMNE Menomonie. Wis. 360 WNNC Newton, N.C. 1230 WPAG Ann Arbor, Mich. WLOW Aiken, S.C. 1300 920 WNNJ Newton, N.J. 1360 WPAL Charleston, S.C. 730 WLOX Biloxi. Miss. 1490 WMNI Columbus. Ohio 1450 WMNS Olean. N.Y. 360 W N N R New Orleans, La. 990 WPAM Pottsville. Pa. WLPM Suffolk. Va. 1460 WMNT Manati, P.R. 500 WNNT Warsaw, Va. 690 WPAQ Mount Airy. N.C. 740 WLPO LaSalle, III. 1220 050 WNOE New Orleans, La. 1060 WPAR Parkersburg. W.Va. 1450 Pa. 1150 WMNI Montezuma, Ga. WLPS Lehighton, WMOA Marietta. Ohio WNOG Naples. Fla. 1270 WPAT Paterson, N.J. 930 WLRC Whitehall, Mich. 1490 Tenn. 450 WNOH Raleigh, N. C. 1550 WPAX Thomasville. Ga. 1240 WLS Chicago. 890 WMOC Chattanooga, 1400 III. WMOG Brunswick, Ga. 490 WNOK Columbia, S.C. 123 WPAY Portsmouth, Ohio WLSB Copper Hill. Tenn. 1400 WMOH Hamilton. Ohio 450 WN00 Chattanooga, Tenn. 12 60 WPAZ Pottstown, Pa. 1370 WLSC Loris. S.C. 1570 14 10 WPBC Richfield, Minn. 980 WMOK Metropolis, 111. 920 WNOP No. Platte, Neb. WLSD Big Stone Gap. Va. 1220 340 WNOR Norfolk. Va, 12 30 WPCC Clinton, S.C. 1400 1400 WMON Montgomery, W.Va. WLSE Wallace, N.C. 550 WNOS High Point. N.C. 15 90 WPCF Panama City, Fla. 1490 1410 WM00 Mobile, Ala. WLSH Lansford, Pa. 900 WNOW York. Pa. 12 50 WPCO Mt. Vernon, Ind. 1590 Ky. 900 WMOP Ocala, Fla. Ky. 1440 WLSI Pikeville. WMOR Morehead. Ky. 330 WNOX Knoxville, Tenn. 9 90 WPDE Paris, WLSM Louisville. Miss. 1270 WMOU Berlin, N.H. WNPS New Orleans. La. 14 50 WPDF Corydon, Ind. 1550 WL.ST Escanaba, Mich. 600 360 WNPT Tuscaloosa. Ala. 12 WPDM Potsdam. N.Y. 1470 Wellsville, N.Y. 790 WMOV Ravenswood, W.Va, 600 WLSV WMOX Meridian. Miss. 240 WNPV Lansdale, Pa. 14 40 WPDQ Jacksonville, Fla. WLTC Gastonia. N.C. 1370 Va. 9 40 W P D R Portage, Wis. . 1350 1370 WMOZ Mobile, Ala. 960 WNRG Grundy, WLTH Gary, Ind. 240 WNRI Woonsocket, R.I. 13 80 WPDX Clarksburg, W.Va. 750 N. H. 1400 WMPA Aberdeen. Miss. 1550 WLTN Littleton. Lapeer. 230 WNRK Newark, Del. 12 60 WPEG Winston -Salem, N.C. WLUV Loves Park, Ill. 1520 WMPC Mich. Louisville, Ga. 1420 WMPL Hancock. Mich. 920 WNRV Narrows. Va. 9 90 WPEH WLVA Lynchburg. Va. 590 N.C. 270 WNSL Laurel, Miss. 12 60 WPEL Montrose, Pa. 1250 Baton Rouge, La. 1550 WMPM Smithfield, 950 WLUX WMPO Middeeport- Pomeroy, WNSM Valparaiso- Nineville, WPEN Philadelphia, Pa. WLW Cincinnati. Ohio 700 Ohio 390 F lorida 1340 WPEO Peoria, Ill. 1020 WLWO(V.O.A.). WMPP Chicago Heights, III. 470 W NTT Tazewell, Tenn , 1250 WPEP Taunton, Mass. 1570 Marathon, Fla. 1040 Tenn. 680 WNUE Ft. Walton Beh., Fla. 1400 WPET Greensboro, N.C. 950 WLWO WMPS Memphis, 910 (V.O.A.) WMPT So. Williamsport. Pa. 450 WNUS Chicago, III. 1390 WPFB Middletown, Ohio Marathon, Fla. 1180 WMQM Memphis, Tenn. 480 WNUW New Albany, Ind. 1570 WPFE Eastman, Ga. 710 WLYB Albany. Ga. 1250 490 WNUZ Talladega, Ala. 1230 WPFP Park Falls, Wis. 1450 WLYC Williamsport, Pa. 1050 WMRB Greenville. S.C. WMRC Milford, Mass. 490 WNVA Norton. Va. 1350 WPGA Perry. Ga. 980 WLYN Lynn. Mass. 1360 1580 WLYO New Orleans. La. 940 WMRE Monroe. Ga. 490 WNVL Nicholasville, Ky. 1250 WPGC Bradbury lights.. Md. WMAB Munising, Mich. 1400 WMRF Lewistown, Pa, 490 WNVY Pensacola, Fla. 1230 WPGF Burgaw, N. C. 1470

120 RADIO -TV EXPERIMENTER

www.americanradiohistory.com C.L. Location Ke. C.L. Location Ke, C.L. Location Kc. C.L. Location Kc. WPGM Danville, Pa. 1570 WRFC Athens, Ga. 960 WSFB Quitman, Ga. 1490 WTAR Norfolk, Va. 790 WPGW Portland. Ind. 1440 WRFD Worthington. Ohio 880 WSFC Somerset. Ky. 1240 WTAW Bryan, Tex. 1150 WPHB Philipsburg, Pa. 1260 WRFS Alexander City. Ala. 1050 WSFR Sanford, Fla. 1360 WTAX Springfield. Ill. 1240 WPHC Waverly. Tenn. 1540 WRGA Rome, Ga. 1470 WSFT Thomaston, Ga. 1220 WTAY Robinson, III. 1570 WPHN Liberty, Ky. 1560 WRGS Rogersville. Tenn. 1370 WSGA Savannah, Ga. 1400 WTBC Tuscaloosa, Ala. 1230 WPIC Sharon, Pa. 790 WRHC Jacksonville, Fla. 1400 WSGB Sutton, W.Va. 1490 WTBF Troy. AIL 970 WPID Piedmont, Ala. 1280 WRHI Rock Hill, S.C. 1340 WSGC Elberton, Ga. 1400 WTBO Cumberland. Md. 1450 WPIK Alexandria. Va. 730 WRIB Providence, R.I. 1220 WSGN Birmingham, Ala. 610 WTCA Plymouth, Ind, 1050 WPIN St. Petersburg, Fla. 680 WRIC Richlands. Va. 540 WSGO Oswego, N.Y. 1440 WTCB Flomaton, Ala. 990 WPIT Pittsburgh. Pa. 730 WRIG Wausau, Wis. 1400 WSGW Saginaw, Mich. 790 WTCH Shawano. Wis. 960 1400 1230 WPKE Pikeville, Ky. . 1240 WRIM Pahokee, Fla. 1250 WSHB Raeford. N.C. WTCJ Tell City, Inc WPKO Waverly, Ohio 1380 WRIN Rensselaer, Ind. 1560 WSHC Collierville, Tenn. 1590 WTCM Traverse City. Mich. 1400 WPKY Princeton, Ky. 1580 WRIP Rossville, Ga. 980 WSHF Sheffield, Ala. 1290 WTCO Campbellsville. Ky. 1450 WPLA Plant City, Fla. 910 WRIS Roanoke, Va. 14510 WSHN Fremont, Mich. 1550 WTCR Ashland, Ky. 1420 WPLB Greenville, Mich. 1380 WRIT Milwaukee, Wis. 1540 WSHO New Orleans, La. 1230 WTCS Fairmont, W.Va. 1490 WPLK Rockmart, Ga. 1220 WRIV Riverhead. N.Y. 1390 WSHP Shippenburg, Pa. 1480 WTCW Whitesburg, Ky. 920 WPLM Plymouth, Mass. 1390 WRIZ Coral Gables. Fla. 1550 WSIB Beaufort, S.C. 1490 WTEL Philadelphia. Pa. 860 WPLO Atlanta, Ga. 590 WRJC Mauston, Wis. 1270 WSIC Statesville, N.C. 1400 WTGA Thomaston. Ga. 1590 WPLY Plymouth, Wis. 1420 WRJN Racine, Wis. 1400 WSID Baltimore. Md. 1010 WTGR Myrtle Beach, S. C. 1520 1500 WRJS San German, P. R. 1060 WSIG Mount Jackson, Va. 790 WTHI Terre Haute, Ind. 1480 WPMB Vandaiia, Ill. 1530 W P M E Punxsutawney, Pa. 1540 WRJW Picayune Miss. 1320 WSI M Prichard, Ala. 1270 WTHM Lapeer, Mich. Portsmouth, Va. 1010 WRKB Kannapolis, N.C. 1460 WSIP Paintsville, Ky. 1490 WTHN Thomaston, Ga. 1500 WPMH 1300 WPMP Pascagoula, Miss. 1580 WRKD Rockland, Maine 1450 WSIR Winter Haven. Fla. 1490 WTHT Hazleton, Pa. 1470 WRKH Rockwood, Tenn. 580 WSIV Pekin, Ill. 1140 WTIC Hartford, Conn. 1080 WPNC Plymouth, N.C. 1270 WPNF Brevard, N.C. 1240 WRKL New City, N. Y. 910 WSIX Nashville. Tenn. 980 WTID Newport News, Va. WPNH Plymouth, N. H. 1300 WRKM Carthage, Tenn. 1350 WSJC Magee, Miss. 1280 WTIF Tifton, Ga. 1340 WPNX Phoenix City. Ala. 1460 W R KT Cocoa Beach, Fla. 1300 WSJM St. Joseph. Mich. 1400 WTIG Massillon, Ohio 990 WPON 1460 WRLD Lanett, Ala.- WSJR Modawaska, Me. 1230 WTIK Durham. N.C. 1310 Pontiac, Mich. 1900 WPOP Hartford. Conn. 1410 W. Point, Ga. 1490 WSJS Winston -Salem, N.C. 6 00 WTIL Mayaguez. P.R. WPOR Portland, Maine 1490 WRMA Montgomery, Ala. 950 WSKI Montpelier- Barre, Vt. 12 40 WTIM Taylorville, III. 1410 WPGW New York, 1830 WRMF Titusville, Fla. 1050 WSKP Miami, Fia. 14 50 WTIP Charleston. W.Va. 1240 N.Y. 1490 WPPA Pottsville, Pa. 1360 WRMN Elgin, Ill. 1410 WSKT S. Knoxville, Tenn. 15 80 WTIQ Manistique, Mich. WPRA Mayaguez, P.R. 990 WRMS Beardstown, III. 790 WSKY Asheville. N.C. 12 30 WTIX New Orleans, La. 690 WPRC Lincoln, Ill. 1370 WRMT Rocky Mount, N.C. 1490 WSLB Ogdensburg. N.Y. 14 00 WTJH East Point, Ga. 1260 WPRE Prairie Du Chien, Wis. 980 WRNB New Bern, N.C. 1490 WSLC Clermont, Fla. IS 40 WTJS Jackson, Tenn. 1390 WPRN Butler. Ala. 1240 WRNE Wis. Rapids, Wis. 1220 WSLG Clermont, Fla. 18 40 WTKM Hartford, Wis. 1540 WPRO Providence, R.I. 690 WRNL Richmond. Va. 910 WSLI Jackson, Miss. 9 30 WTKO Ithaca N.Y. 1470 WPRP Ponce. P.R. 910 WRNY Rome, N.Y. 13 50 WSLM Salem, Ind. 12 20 WTKY Tompkinsville, Ky. 1370 WPRS Paris. Ill. 1440 WHOA Gulfport, Miss. 13 90 WSLR Akron, Ohio 13 50 WTLB Utica, N.Y. 1310 W P RT Prestonsburg. I(y. 960 WROB West Peint, Miss. 14 50 WSLS Roanoke, Va. 6 10 WTLK Taylorsvilie, N.C. 1570 WPRV Wauchula, Fla. 1600 WROC Rochester, N.Y. 12 80 WSLT Ocean City -Somers WTLN Apopka, Fla. 1520 WPRW Manassas, Va. 1460 WROD Daytona Beach. Fla. 13 40 Pt., N. J. 15 20 WTLO Somerset, Ky. 1480 WPRY Perry, Fla. 1400 W RO K Rockford. Ill. 14 40 WSM Nashville. Tenn. 6 50 WTLS Tallasee, Ala. 1300 WPSL Monroeville, Pa. 1510 WROL Fountain City, Tenn. 14 90 WSMB New Orleans, La. 15 50 WTMA Charleston S.C. 1250 WPTF Raleigh, N.C. 680 WROM Rome, Ga. 7 10 WSME Sanford, Maine 12 20 WTMB Tomah, Wis. 1990 WPTL Canton, N.C. 920 WRON Ronceverte, W.Va. 14 00 WSMG Greenville, Tenn. 14 50 WTMC Ocala. Fla. 1290 WPTN Cookeville, Tenn. 500 WROS Scottsboro, Ala. 13 30 WSMI Litchfield, 111. 15 40 WTMJ Milwaukee, Wis, 620 WPTR Albany. N.Y. 540 WROV Roanoke, Va. 12 40 WSMN Nashua, N.H. 15 90 WTMP Tampa Fla. 1150 WPTS Pittston, Pa. 540 WROW Albany, N.Y. 5 90 WSMT Sparta, Tenn. 10 50 WTMT Louisville. Ky. 620 WPTW Piqua, Ohio 570 WROX Clarksdale, Miss. 14 50 WSNE Cummings, Ga. 14 10 WTNC Thomasville. N.C. 790 WPTX Lexington Pk.. Md. 920 WROY Carmi III. 14 WSNJ nr. Bridgeton. N.J. 12 40 WTND Orangeburg, S.C. 920 WPUV Pulaski Va. 580 WROZ Evansville, Ind. 1 4ÓÓ WSNO Barre, Vt. 14 50 WINS Coshocton. Ohio 1560 WPVA Colonial Hghts Va. 290 WRPB Warner Robbins, Ga. 13 50 WSNT Sandersville. Ga. 14 90 WTNT Tallahassee, Fla. 1270 WPVL Painesville, Ohio 460 WRPL Charlotte, N.C. 15 40 WSNW Seneca, S. C. 11 50 WTOB Winston -Salem. N.C. 1380 WPXE Starke, Fla. 490 WRPM Poplarville, Miss. 15 30 WSNY Schenectady, N.Y. 12 40 WTOC Savannah. Ga. 1290 WPXY Greenville. N. C. 550 WRR Dallas, Tex. 13 10 WSOC Charlotte, N.C. 9 30 WTOD Toledo, Ohio 1560 WPYB Benson, N.C. 580 WRRC Spring Valley, N. Y. IS 00 WSOK Savannah, Ga. 12 30 WTOE Spruce Pine. N.C. 1470 WQAM Miami. Fla. 560 WRRR Rockford. III. 13 30 WSOL Tampa, Fla. 18 00 WTOJ Tomah, Wis. 1460 WQBC Vicksburg. Miss. 420 WRRZ Clinton. N.C. 8 80 WSOM Salem, Ohio 6 00 WTON Staunton. Va. 1240 WADY Calais, Maine 230 WRSA Saratoga Sprgs., N.Y. 12 80 WSON Henderson. Ky. 8 60 WTOP Washington, D.C. 1500 Miss. 890 WRSC State College, Pa. 13 90 WS00 Slt. Ste. Marie, Mich. 12 30 WTOR Torrington, Conn. 610 WQIC Meridian, 20 WO! K Jacksonville FIL 280 WRSJ Bayamon. P. R. 15 60 WSOQ No. Syracuse, N.Y. WTOT Marianna, Fla. 980 WW1 St. George, S. C. 300 WRSL Stanford. Ky. 15 WSOR Windsor, Conn. 1400 WTPR Paris, Tenn. 710 13 40 W QM R Silver Spring, Md. 050 WRSW Warsaw. Ind. 14 80 WSOY Decatur, Ill. WTRA Latrobe. Pa. 1480 WQOK Greenville, S.C. 440 WRTA Altoona, Pa. 12 40 WSPA Spartanburg. S.C. 9 50 WTRB Ripley, Tenn. 1570 WQSN Charleston, S.C. 450 WRTH Wood River, III. 5 90 WSPB Sarasota. Fla. 14 50 WTRC Elkhart, Ind. 1340 WQSR Solvay, N.Y. 320 WRTL Rantoul, III. 25 Od WSPD Toledo, Ohio I 370 WTRL Bradenton, Fla. 1490 WUTE Monroe, Mich. 560 WRUF Gainesville. Fla. 8 50 WSPF Hickory, N.C. IO 00 WTRN Tyrone, Pa. 1340 WQTW Latrobe, Pa. 570 WRUM Rumford. Maine 7 90 WSPR Springfield. Mass. 12 ÓWTRO Dyersburg, Tenn. 1330 WQTY Arlington, FIL 220 WRUN Utica. N.Y. II 50 WSPT Stevens Pt.. Wis. 10 WTRP LaGrange, Ga. 620 WQUA Moline. III. 230 WRUS Russellville. Ky. 6 10 WSPZ Spencer, W.Va. 140 0 WIRR Sanford, Fla. 1400 WQVA Quantico, Va. 530 WRVA Richmond. Va. 11 40 WSRA Milton, Fla. 1490 WTRU Muskegon. Mich. 1600 WQXI Atlanta. Ga. 790 W RV K Mt. Vernon. I(y. 14 60 WSRC Durham, N.C. 1410 WTRW Two Riven, Wis. 1590 WQXL Columbia. S.C. 320 WRVM Rochester, N.Y. 6 WSRO Marlborough, Mass. 1470 WTRX Flint. Mich. 1330 WQXQ Ormond Beh., Fla. 380 WRWD Augusta, Ga. 14 80 WSRW Hillsboro, Ohio 1590 WTRY Troy. N.Y. 980 WQXR New York. N.Y. 560 WRWH Cleveland. Ga. 13 80 WSSB Durham, N.C. 1490 WTSA Brattleboro. Vt. 1450 WQXT Palm Beach, FIL 340 WRWD Selma. Ala. 15 70 WSSC Sumter. S.C. 1340 WTSB Lumberton, N.C. 1340 WRAA Luray, Va. 330 WRXO Roxboro N.C. 14 300 WSSO Starkville, Misa. 1230 WTSL Hanover -Lebanon, WRAB Arab, Ala. 380 WRYM New Britain, Conn. 84 WSSV Petersburg, Va. 1240 New Hampshire 1400 WRAC Racine, Wis. 460 WRYT Pittsburgh, Pa. 1250 WSTC Stamford. Conn. 1400 WTSN Dover, N.H. 1270 WRAD Radford. Va. 460 WSAC Fort Knox, Ky. 1470 WSTH Taylorsville, N. C. 860 WTSV Claremont. N.H. 1230 WRAG Carrollton, Ala. 590 WSAF Sarasota, Fla. 1220 WSTI St. Ignace, Mich. 940 WTTB Vero Beach, Fla. 1490 W R A I Rio Piedras, P.R. 190 WSAI Cincinnati, Ohio 1360 WSTK Woodstock, Va. 1230 WTTC Towanda. PL 1550 WRAJ Anna, III. 440 WSAJ Grove City. Pa. 1340 WSTL Eminence. Ky. 1600 WTTF Tiffin, Ohlo 1600 WRAK Williamsport. Pa. 400 WSAL Logansport, Ind. 1230 WSTP Salisbury, N.C. 1490 WITH Port Huron, Mich. 1380 WRAL Raleigh. N.C. 240 WSAM Saginaw. Mich. 1400 WSTR Sturgis. Mich. 1230 WTTI Dalton, Ga. 1530 WRAM Monmouth, III. 330 WSAN Allentown. Pa. 1470 WSTU Stuart, Fla. 1450 WTTL Madisonville, Ky. 1310 WRAN Dover, N.J. 510 WSAO Senatobia, Miss. 1550 WSTV Steubenville, Ohio 1340 WTTM Trenton. N.J. 920 WRAP Norfolk. Va. 850 WSAR Fall River. Mass. 1480 WSUB Groton, Conn. 980 WTTN Watertown. Wis. 1580 WRAW Reading. Pa. 340 WSAT er. Salisbury. N.C. 1280 WSUH Oxford. Miss. 1420 WTTO Toledo. Ohio 1520 WRAY Princeton. Ind. 250 WSAU Wausau, Wis. 550 W SU I Iowa City. Iowa 910 WTTR Westminster, Md. 1470 WRBC Jackson. Miss. 300 WSAV Savannah. Ga. 630 WSUN St. Petersburg. FIL 620 WTTS Bloomington, Ind. 1370 WRBD Pampano Beach, FIL 470 WSAY Rochester. N.Y. 1370 WSUX Seaford. Del. 1280 WTTT Amherst, Mass. 1430 WRBL Columbus, Ga. 420 WSAZ Huntington. W.Va. 930 WSUZ Palatka, Fla. 800 WTUF Mobile, Ala. 840 WRC Washington. D.C. 980 WSB Atlanta, Ga. 750 WSVA Harrisonburg, Va. 550 WTUG Tuscaloosa. Ala. 790 WRCD Dalton. Ga. 430 WSBA Savannah, Ga. 1400 WSVL Shelbyville. Ind. 1520 WTUP Tupelo, Miss. 1490 WRCH New Britain, Conn. 910 WSBB New Smyrna Beach. WSVN Valdese, N.C. 1490 WTUX Wilmington. Del. 1290 WRCK Tuscumbia, Ala. 410 Florida 1230 WSVM Valdese, N.C. 1490 WTVB Coldwater, Mich. 1590 WRCO Richland. Wis. 450 WSBC Chicago, 1240 WSVS Crewe. Va. 800 WTVL Waterville, Maine 1490 WRCR Maplewood, Minn. 010 WSBR Boca Raton, Fla. 740 WSWN Belle Glade. Fla. 900 WTVN Columbus, Ohio 610 WRCS Ahoskie, N.C. 970 WSBS Gt. Barrington, Mass. 860 WSWV Pennington Gap. Va. 1570 WTWA Thomson. Ga. 1240 WRCV Philadelphia, Pa. 060 WSBT South Bend. Ind. 960 WSWW Platteville. Wis. 1590 WTWB Auburndale, Fla. 1570 WRDB Reedsburg. Wis. 400 WSCM Panama City Beach, WSYB Rutland, Vt. 1380 WTWN St. Johnsbury. Vt. 1340 WRDO Augusta, Maine 400 Florida 290 WSYD Mt. Airy, N.C. 1300 WTXL W. Spgfd., Mass. 1490 WRDS S. Charleston, W.Va. 410 WSBP Chattahoochee, Fla. WSYL Sylvania. Ga. 1490 WTYC Rock Hill. S.C. 1150 WRDW Augusta, Ga. 480 WSCR Scranton, Pa. 320 WSYR Syracuse, N.Y. 570 WTYM East Longmeadow, WREB Holyoke, Mass. 930 WSDR Sterling, Ill. WTAB Tabor City. N.C. 1370 Mass. 1600 WREC Memphis, Tenn. 600 WSEB Sebring, FIL 340 WTAC Flint, Mich. 600 N.C. 1550 440 WTYN Tryon, WREL Lexington, Va. 1450 WSEL Pontotoc, Miss. WTAD Quincy, Ill. 930 Fla. 1340 Ga. 500 580 WTYS Marianna, WREM Remsen, N.Y. 1480 WSEM Donaldsonville, WTAG Worcester, Mass. Amherst, N.Y. 1080 WSEN Baldwinsville. N.Y. 050 WTAL Tallahassee, Fla. 1450 WUFD WREN Topeka, Kans. 1250 Eastman, Ga. 1580 970 WSER Elkton. Md. 550 WTAN Clearwater, Fla. 1340 WUFF WREO Ashtabula, Ohio N. Y. 1080 WREV Reidsville, N.C. 1220 WSET Glen Falls, N.Y. 410 WTAP Parkersburg, W.Va. 1230 WUFO Amherst, WREX Grand Junction, Colo. 920 WSEV Sevierville, Tenn. 930 WTAQ LaGrange, Ill. 1300 WULA Eufaula. Ala. 1240

JANUARY, 1966 121

www.americanradiohistory.com WHITE'S C.L. Location Kc. C.L. Location Kc. C.L. Location Kc. WVOB Bel Air, Md. 1520 W W L New Orleans, La. 870 WXUR Media, Pa. 690 WVOC Battle Creek. Mich. 1500 WWML Portage, Wis, 1470 WXVA Charles Town, W.Va. 550 WVOE Chadburn, N.C. 1590 WWNC Asheville, N.C. 570 WXVW Jeffersonville, Ind, 450 E..5/ \ UO WVOH Hazelhurst, Ga. 920 W W N H Rochester, N.H. 930 WXXX Hattiesburg, Miss. 310 WVOI( Birmingham. Ala. 690 WWNR Beckley, W.Va. 620 WXYC Ft. Myers, Fla. 350 WVOL Berry Hill. Tenn, 1470 WWNS Statesboro, Ga. 1240 WXYZ Detroit. Mich. 270 WVOM luka, Miss. 1270 WWNY Watertown, N.Y. 790 WYAL Scotland Neck, N.C. 280 WVON Cicero, III. 1450 WWOD Lynchburg, Va. 1390 WYAM Bessemer, Ala. 450 WVOP Vidalia, Ga. 970 WWOK Charlotte. N.C. 1480 WYBG Massena, N. Y. 050 WVOS Liberty. N.Y. 1240 WWOL Buffalo, N.Y. 1120 WYCL York, S.C. 580 WVOT Wilson, N.C. 1420 WWOM New Orleans, La. 600 WYDE Birmingham. Ala. 850 C.L. Location Ke. WVOW Logan, W.Va. 1290 WWON Woonsocket, R.I. 1240 WYGO Corbin, Ky. 330 WVOX New Rochelle, N.Y. 1460 WWOW Conneaut, Ohio 1360 W Y H E Bristol. Tenn. 550 WUMU Gainesville, Fla. 990 WVOZ Carolina, P.R. 1400 WWPA Williamsport, Pa. 1340 WYLD New Orleans, La. Aguadilla, 340 940 WUNA P. R. WVPO Stroudsburg, Pa. 840 WWPF Palatka. Fla. 1260 WYLO Jackson, Wis. 540 WUND Uhrichsvlile, Ohio 540 WVSC Somerset, Pa. 990 WWRI W. Warwick, R.I. 1450 WYMB Manning, S.C. 1410 WUNE Baton Rouge, La. 550 WVTR 910 WWRL Woodside, N.Y. 1600 WYND Sarasota, Fla. 1280 410 White River June., Vt. WUNI Mobi le,Ala. WVVW Grafton, W.Va. 1260 WWSC Glens Falls, N.Y. 1450 WYNG Warwick -East 320 WUNO Rio Piedras, P.R. WWAB Lakeland, Fla. 1330 WWSD Monticello, Fla. 1090 Greenwich, R.I. 1590 WONS Lewisburg, Pa. 010 Bamberg- Denmark, W W SF Loretto, Pa. 1400 WYNK Baton Rouge, La. 1380 530 WWBB WUPR Utado, P.R. S. C. 790 WWSR St. Albans, Vt. 1420 WYNN Florence, S.C. 540 WUSJ Lockport, N.Y. 940 W W BC Cocoa, Fla. 510 WWST Wooster, Ohio 960 WYNR Brunswick, Ga. 790 WUSM Havelock, N.C. 330 WWBD Bamberg, S.C. 790 WWSW Pittsburgh, Pa. 970 WYNS Leighton. Pa. 1150 WUST Bethesda, Md. 120 950 WWTC Minneapolis, Minn. 1280 WYNX Smyrna, Ga. 1550 390 WWBR Windber, Pa. W U W U Gainsville, Fla. W W BZ Vineland, N.J. 360 WWUN Jackson, Miss. 1590 WYNZ Ypsilanti, Mich. 1520 WVAK Paoli, Ind. 560 Wheeling, 1170 WYOQ Wyoming, Mich. 1530 800 WWCA Gary. Ind. 270 WWVA W.Va. WVAL Sauk Rapids, Minn. WWCC Bremen. Ga. 440 WWWB Jasper, Ala. 1360 WYOU Tampa, Fla. 1550 WVAM Altoona, Pa. 430 WWCH Pa. 900 W W W F Fayette, Ala. 990 WYPR Danville, Va. 970 280 Clarion, WVAR Richwood, W.Va. WWCM Brazil. Ind. 380 W W W R Russellville, Ala. 920 WYRE Annapolis, Md. 810 WVCB Shallotte, N. C. 410 WWCO Waterbury. Conn. 240 WWXL Manchester, Ky. 1450 WYRN Louisburg, N.C. 480 WVCF Apopka. Fla. 520 WWDC Washington, D.C. 260 WWYN Erie, Pa. 1260 WYSH Clinton, Tenn. 380 WVCG Coral Gables, Fla. 080 WWDR Murfreesboro, N. C. 080 WWYO Pineville. W.Va. 970 WYSI Ypsilanti, Mich. 480 WVCH Chester. Pa. 740 W W DS Everett, Pa. 110 WXAL Demopolis, Ala. 1400 WYSL Buffalo, N.Y. 400 490 WVEC Hampton. Va. W W G M Nashville, Tenn. 560 WXCO Wausau, Wis. 1230 WYSR Franklin, Va. 250 WVGT Mt. Dora, Fla. 580 WWGO Erie, Pa. 450 WXGI Richmond. Va. 950 WYTH Madison, Ga. 250 WVIC E. Lansing, Mich. 730 WWGP Sanford, N,C, 050 WXHR Cambridge, Mass. 740 WYTI Rocky Mount, Va. 570 WVIM Vicksburg, Miss. 490 WWGS Tifton, Ga. 430 WXIG Windemere, Fla. 1480 WYVE Wytheville, Va. 280 WVIP Mt. Kisco, N.Y. WWHG Hornell. N.Y. 320 W X K W Troy, N. Y. 1600 WYZE Atlanta, Ga. 480 WVIP Caguas, P.R. 1110 WWHY Huntington, W.Va. 470 WXLI Dublin, Ga. 1230 WZBN Zion, Ill. 500 WVJS Owensboro, KY. 420 WWIL Ft. Lauderdale. Fla. 580 WXLL Big Delta, Alaska 980 WZEP DeFuniak Sprgs., Fla. 460 WVKO Columbus, Ohio 580 WWIN Baltimore. Md. 400 WXLN Potomac -Cabin John, WZIP Cincinnati, Ohio 050 WVLD Valdosta, Ga. 450 W W IS Black River Falls, Md. 950 WZKY Albemarie, N.C. 580 WVLK Lexington, KY. 590 Wis. 260 WXLW Indianapolis, Ind. 950 WZOB Ft. Payne, Ala. 250 WVLN Olney. Ill. 740 WWIT Canton. N.C. 970 WXOK Baton Rouge, La. 1260 WZOE Princeton, Ill. 490 WVMC Mt. Carmel. Ill. 1360 WWII Lorain, Ohio 380 WXOX Bay City, Mich. 1250 WZOK Jacksonville, Fla. 320 WVMI Biloxi. Miss. 570 WW1 Detroit, Mich. 950 WXMT Merrill, Wis. 730 WZRH Zephyr Hills, Fla. 400 WVMT Burlington, Vt. 620 WWJB Brooksville. Fla. 450 WXRF Guayama, P.R. 1590 WZUM Carnegie, Pa. 590 WVNA Tuscumbia, Ala. 1590 WWJC Superior, Wis. 270 WXTN Lexington, Miss. 1150 WZYX Cowan, Tenn. 440 WVNJ Newark. N.J. 620 W W KY Winchester, Ky. 380 WXTR Pawtucket, R.I. 550 WZZZ Boynton Beach, Fla. 510

U. S. FM Stations by Call Letters Abbreviation: (s)- broadcasts stereo C.L. Location C.L. Location C.L. Location C.L. Location KABCFM Los Angeles, Calif. KBOI -FM Boise, Ida.(s) KDFC San Francisco, Calif. KFLA -FM Scott City. Kan. KABL -FM San Francisco, Cal. KBOX -FM Dallas, Tex. KDEF -FM Albuquerque, N. M. KFLY -FM Corvallis, Ore. KACA Prosser, Wash. KBOY -FM Medford, Oreg. KDFM Walnut Creek, Cal. KFMB -FM San Diego, Calif. KACE -FM Riverside, Calif. KBP1 Denver, Colo. 1(1)FR Tulare, Cal. KFMC Portland, Oreg..- KADI St. Louis, Mo. KBRG San Francisco, Cal. KDHI -FM Twenty -Nine Palms, KFMG Des Moines, la. KAFI Auburn, Calif. KBRO -FM Bremerton, Wash. Cal. KFMK Houston,Tex.(s) KAFM Salina, Kans. KBTC -FM Houston, Mo. l(DKA -FM Pittsburgh, Pa. 1(FML -FM Denver, Colo.(s) KAIM -FM Honolulu, Hawaii(s) KBTMFM Jonesboro, Ark. KOLA -FM De Ridder. La. I(FMM Tucson, Ariz. KAJS Newport Beach, Calif. KBTV -FM Houston. Mo. KDMC Corpus Christi, Tex. KFMN Abilene, Tex. KAKC Tulsa, Okla. KBUZ -FM Mesa, Ariz. KDMI Des Moines, lowa(s) KFMP Port Arthur, Tex.(s) KAKI San Antonio, Tex. KBVR Corvallis, Ore. KDNC -FM Spokane, Wash. KFMQ Lincoln, Nebr. KALB -FM Alexandria, La. KBYR -FM Anchorage, Alaska(s) KONT -FM Denton, Tex. KFMR Fremont, Cal. KALH Denver, Colo. KBYU -FM Provo, Utah K DOK -FM Tyler, Tex. KFMU Glendale, Calif. (s) KALW San Francisco, Calif. KCAB -FM Dardanelle, Ark. I(DPS Des Moines, Iowa KFMV Minneapolis, Minn KAMS Mammoth Spring, Ark. KCAL.FM Redlands, Calif. I(DU0 Riverside, Calif.(s) I(FMW San Bernardino, Calif. KANG Angwin, Cal. KCBH Beverly Hills, Calif.(s) KDUX -FM Aberdeen, Wash. (s) KFMX San Diego, Calif.(s) KANT -FM Lancaster, Calif. l(CBS -FM San Francisco, Calif. KDVR Sioux City. la.(s) KFMY Eugene, Oreg.(s) KANU Lawrence, Kans.(s) KCEE -FM Tucson, Ariz- KEAR San Francisco, Calif. KFNB Oklahoma City. Okla.(s) KANW Albuquerque, N.Mex. KCER Redding, Cal. KEAX National City, Calif. KFNE Big Springs, Tex. KAOL -FM Carrollton, Mo. KCFC Kansas City, Kan. KEEL! Phoenix, Ariz. KFNW -FM Fargo, N.D. KARA -FM Albuquerque, N.M. KCFM St. Louis, MO.(s) KEBR Sacramento, Calif. KFOG San Francisco, Calif. (s) KARK Little Rock, Ark. l(CHQ -FM Conchella. Calif.(s) KEBS San Diego, Calif. KFOX -FM Los Angeles, Cal. KARL -FM Carlsbad. Cal. 1 (Cl B -FM Fresno, Calif. (s) KECR El Cajon, Calif. KFRC -FM San Francisco, Calif. KARM -FM Fresno, Calif. KCIC Clinton, Mo. KEDC -FM Northridge, Cal. KFRE -FM Fresno, Calif. KASKFM Ontario, Calif. KCIL -FM Houma, La. KEEDFM Springfield- Eugene, KFRN -FM Brownwood, Tex. KASU Jonesboro, Ark. KCKN -FM Kansas City, Ilan. Oregon(s) KFUO -FM Clayton, Mo. KATT Woodland, Calif. KCLEFM Cleburne, Tex. KEEN -FM San Jose, Calif. KGAF -FM Gainesville, Tex. KATY -FM San Luis Obispo, Calif. KCLO -FM Leavenworth, Kans. KEEZ San Antonio, Tex.(s) KGB -FM San Diego, Calif.(s) KAVR -FM Applevalley, Cal. KCLU -FM Rolla, Mo. KEFC Waco, Tex.(s) KGBC -FM Galveston, Tex. KAYD Beaumont, Tex. l(CMA San Francisco, Cal. KEFM Santa Posa, Cal. KGBI -FM Omaha, Neb. KAZZ Austin, Tex. KCMB -FM Wichita, Kans. KEFW Honolulu, Hawaii I(GBN -FM Caldwell. Idaho KBBI Los Angeles, Calif. KCMI Los Angeles, Calif. KELD -FM El Dorado, Ark.(s) KGEE -FM Bakersfield, Cal. (s) KBBL Riverside, Cal. KCMK Kansas City, Mo. KELE Phoenix, Ariz. KGEN -FM Tulare. Cal. KBBM Hayward, Calif. KCMO -FM Kansas City, Mo.(s) KELO -FM Sioux Falls, S. D. KGFM Edmonds, Wash. KBBW San Diego, Cal.(s) KCMS -FM Manitou Springs, Colo. KELT Harlingen, Tex. KGGK Garden Grove, Callf.(s) KBCA Los Angeles, Calif. KCOM Omaha, Nebr. KEMO St. Louis, Mo. KGLA Los Angeles, Calif. KBCL -FM Shreveport, La. (s) KCPS Tacoma, Wash. KERI Bellingham, Wash. KGME -FM Centralia, Wash. KBEEFM Modesto. Calif. KCPX -FM Salt Lake City, Utah KERN -FM Bakersfield, Calif. KG MI -FM Bellingham, Wash. KBEY Kansas City, Mo. KCRAFM Sacramento, Calif. KERR Salinas, Cal. KGNC -FM Amarillo, Tex. KBFI Boise. Idaho KCRW Santa Monica, Calif. ItERS Sacramento. Cal. I(GO -FM San Francisco, Calif. KBFL Buffalo, Mo. KCSB -FM Santa Barbara, Cal. KESM -FM El Dorado Springs, I(GPO Grants Pass, Oreg. KBFM Lubbock, Tex. KCSM San Mateo Calif. Mo. KGRI -FM Henderson, Tex, KBGL Pocatello, Ida. KCSU -FM Ft. Collins, Colo. KETO -FM Seattle, Wash.(s) KGUD -FM Santa Barbara, Calif. KBHF Bozeman, Mont. WCTS FM Minneapolis, Minn. KEWC -FM Cheney, Wash. KGVW -FM Belgrade, Mont. KBHS -FM Hot Springs, Ark. KCUE -FM Red Wing, Minn. KEZE Anaheim, Calif. KHAK -FM Cedar Rapids, lowa(s) KBIG -FM Los Angeles Avalon, KCUI Pella, la. KFAB -FM Omaha, Nebr. KHBL Plainview, Tex. Cal. KCU L -FM Ft. Worth, Tex. (s) KFAC -FM Los Angeles, Calif. KHBR -FM Hillsboro, Tex. KBIM -FM Roswell, N.Mex. KCUR -FM Kansas City, Mo. KFAM -FM St. Cloud, Minn, KHCB -FM Houston. Tex. KBLE -FM Seattle, Wash. KCVRFM Lodi, Calif. KFAY -FM Fayetteville, Ark. KHEP -FM Phoenix, Ariz. KBMC Eugene, Ore. KCWSFM Ellensburg, Wash. KFBD Waynesville. Mo. KHFI -FM Austin, Tex. KBMF -FM Spearman, Tex. KCYS Richland, Wash. KFBKFM Sacramento, Calif. KHFM Albuquerque, N. Mea.(s) KBMS Los Angeles, Calif. WDAF -FM Kansas. Mo. KFCA Phoenix, Ariz. KH FRFM Monterey. Calif.(s) KBNO Houston, Tex. (s) KDB -FM Santa Barbara, Calif. KFGQ -FM Boone, Iowa KBOA -FM Kennett, Mo. KDDDFM Dumas, Tex. l(FH -FM Wichita, Kans. KHGM Beaumont, Tex.(s) KBOC Ogden, Utah (s) KDEF -FM Albuquerque, N.Mex. KFJC Los Altos, Cal. KHIQ. Sacramento, Calif.(s) KBOEFM Oskaloosa, Iowa KDES- FMPalm Spas., Calif. (s) KFJZ Fort Worth, Tex. KHJ -FM Los Angeles, Calif.

121 RADIO -TV EXPERIMENTER

www.americanradiohistory.com C.L. Location Location C.L. Location C.L. Location C.L. Glendale. Calif. KROS -FM Clinton, Iowa KUTE Tex. KNEB -FM Scottsbluff, Nebr. KUWS -FM Newton. la. KHMS El Paso. Okla. KROW Santa Barbara, Calif. KHOB -FM Hobbs, N. M. KNED -FM McAlester, Calif. (VCR San Bernardino, Calif. KNER Dallas, Tex. KROY -FM Sacramento, KHOF Los Angeles, Calif. KRPM San Jose, Calif. KVEC -FM KHOK -FM Hoquiam, Wash. KNEV Reno, Nev. (s) San Luis Obispo. Calif.(a) Scottsbluff, Nebr. KRRC San Jose, Calif. Nev. KHOLFM Kearney- Holdrege, KNEW-FM KRSA -FM Salinas, Cal. KVEG -FM Las Vegas. KNFB Nowata. Okla. -FM Ventura, Calif. Neb. Tex. KRSI Minneapolis, Minn.(s) KVEN KHOM -FM Turlock, Calif.(s) KNFM Midland, Louis Park, Minn. KVFM San Fernando, Calif. -FM Anchorage, Alaska KRSI-FM St. Tex. KHOZFM Harrison, Ark. KNIK KRSL -FM Russell, Kan. KVII -FM Amarillo, KNIX -FM Phoenix. Ariz. (s) FM Highland Park -Dallas. KHPC Brownwood, Tex. Calif. KRSN -FM Los Alamos, N.Mex. KVI L- KHQ -FM Spokane, Wash. KNJO Thousand Oaks. Albuquerque, N. M. Tex. KNOB Long Beach, Calif. (s) K RST Tucson, Ariz. KHSC Arcata, Calif. La. KRVM Eugene. Oreg. KVOA.FM KHSJ -FM Hemet, Cal. KNOC -FM Natchitoches. Lexington, Nebr. INebraska KUSN -FM St. Joseph, D.C. KNBRFM San Francisco, Calif. KUSU -FM Logan, Utah WAMU -FM Washington, Kans. KROC -FM Rochester, Minn. Goldwater, Mich. KNCOFM Garden City. Calif. KUT -FM Austin, Tex. WANG KNDX Yakima, Wash. KRON -FM San Francisco, 123 JANUARY, 1966

www.americanradiohistory.com C.L. WHITE'S Location C.L. Location C.L. Location WBUR Boston, Mass. WDJR Oil City, Pa. WFMA Rocky Mount, N.C. WBUT -FM Butler, Pa. WDKN -FM Dickson, IT WBUY Tenn. WFMB Springfield. Ill. 12L_n_!n.__J U -FM Lexington, N.C. WDLBFM Marshfield, Wis. WFMD -FM ® WBVA Woodbridge, Va. Frederick, Md. WDLP -FM Panama City. Fla. WFME Newark. N.J. WBVP -FM Beaver Falls, Pa. WDMBFM Statesville, N.C. WBWC Berea, Ohio WFMF Chicago. Ill. WDMS -FM Lynchburg. Va. WEND Gallatin, Tenn, WBYM Bayamon, P.R. WDNC -FM Durham, WBYO Boyertown, Pa.(s) N.C. WFMH -FM Cullman, Ala. aoo WDOC -FM Prestonsburg, Ky. WFMI Montgomery, Ala. WBZ -FM Boston, Mass. WDOD -FM WCAC Anderson, Chattanooga. Tenn. WFMK Mt. Horeb, Wis. S.C. WDO K -FM Cleveland, Ohio C.L. Location WCAO-FM Baltimore, Md. WFe1L Washington, Ind. WDOL -FM Athens, Ga. WFMMFM Baltimore, Md. WCAR -FM Detroit, Mich. WDOV -FM Dover, WANY -FM Albany, Ky. WCAS Knoxville, Del. WF MS Indianapolis, led.(s) Tenn. WDRC -FM Hartford, Conn. WFMT WAOV -FM Vincennes, Ind, WCAU -FM Philadelphia, Pa. WORK Chicago, III.(s) WAPC -FM -FM Greenville, Ohio WFMU East Orange, N.J. Riverhead, N.Y.(s) WCRC Catonsville, Md. WDRM Darien, Conn. WAPI FM Birmingham, Ala. WCBE Columbus, Ohio WFMW -FM Madisonville, Ky. WDRN Norwalk, Conn. WFMX Statesville, N.C. WAPL -FM Appleton, Wis. WCBM -FM Baltimore, Md. WDSC -FM Dillon, S.C. WAPS Akron, Ohio WCBS -FM New York, N.Y. WFMI Allentown, Pa. WDSU -FM New Orleans, La. WFNC -FM Fayetteville, N.C. WAQEFM Towson, Md.(s) WCBW Columbia, Ill. WDTM Detroit, Mich.(s) WARC Meadville, Pa. WCCC -FM Hartford, Conn. WFNSFM Burlington, N.C. WOTR Detroit, Mich. WFNY Racine, Wis. WARD -FM Johnstown, Pa. WCCM -FM Lawrence, Mass. WDUB Granville, Ohio WA R WFOB -FM Fostoria, Ohio K Little Rock, Ark. (s) WCCN -FM Neillsville, Wis. WDUN -FM Gainesville, Ga.(s) WARN -FM Fort Pierce, Fla. WCCVFM Charlottesville, Va. WFOL Hamilton, Ohio(s) WDUQ Pittsburgh, Pa. WFOS South Norfolk, Va. WARUFM Peru, Ind. WCEDFM Dubois, Pa. WDUX -FM Aberdeen. Wash. WASAFM Havre WCEF -FM Parkersburg, WFOY -FM St. Augustine, Fla. De Grace, Md. W. Va. WDUZ -FM Green Bay, Wis. WFPG Atlantic WASH Washington, D.C.(s) WCENFM Mt. Pleasant, Mich.(s) WDVR Philadelphia, City, N.J. WASK -FM Lafayette. WCER -FM Charlotte, Pa. WFPI( Louisville, Ky. Ind. Mich. WDWS -FM Champaign, Ill. WFPL WATH -FM Athens, O. WCFM Williamstown, Mass. WDXE Louisville, Ky. WATR FM Lawrenceburg, Tenn. WFQM San Juan, P.R. -FM Waterbury, Conn. WCHA -FM Chambersburg, Pa.(s) WDXL -FM Lexington, Tenn. WAUG -FM Augusta, Ga. WCHD Detroit, Mich. WFRB -FM Frostburg, Md. WEAS -FM Savannah, Ga. WFRE -FM Fresno, Cal. WAUK -FM Waukesha, Wis. WCH KFM Canton, Ga. WEAU -FM Eau Claire, WAUP Akron, Ohio WCHNFM Norwich, N.Y. Wis. WFRLFM Freeport, Ill. WEAV -FM Plattsburgh, N.Y. WFRO -FM Fremont, Ohio WAVA -FM Arlington, Va. WCHO -FM Washington Court WEAW -FM Evanston, III. WAVO -FM Atlanta. Ga. House, O. WFSC -FM Franklin, N. C. WEBH Chicago, Ill. WFST -FM Caribou, Maine WAVU -FM Albertville, Ala. WCLE FM Cleveland, Tenn. WEBQ -FM Harrisburg, Ill. WAVY -FM Portsmouth, Va. WCLI -FM Corning, N.Y. WEBR WFSUFM Tallahassee, Fla. -FM Buffalo, N.Y. WFTL -FM Ft. Lauderdale. WAWK -FM Kendallville, Ind. WCLM Chicago, Ill. WECI Richmond, Ind. Fla. WAWR -FM Bowling Green, O. WCLO -FM Janesville, Wis. WFTW -FM Ft. Walton Beach, WECW Elmira, N.Y, Fla. WAWZ -FM Zarephath, N.J. WCLTFM Newark, Ohio WEDA -FM Grove City, Pa. WAX() Kenosha, Wis. WCLV Cleveland, 0.15) WFUL -FM Fulton, I(y. WEDR -FM Miami, Fla. WFUR -FM Grand Rapids, Mich. WAYL Minneapolis, Minn- (s) WCLW -FM Mansfield, Ohio WEEC Springfield. Ohio WAYZFM Waynesboro, Pa. WCMCFM Wildwood, N.J. WFUV New York, N.Y. WEED-FM Rocky Mount, N.C. WFVA -FM Fredericksburg, Va. WAZL -FM Hazelton. Pa. WCMB -FM Harrisburg, Pa. WEEF -FM Highland Park, WAZY -FM Lafayette, Ind. WCME -FM Brunswick, Maine Ill. WFYC -FM Alma. Mich. WEEI -FM Boston, Mass. WGAL -FM Lancaster, Pa. WBAA -FM W. Lafayette, Ind. WCMF -FM Rochester, N.Y.(s) WEEP -FM Pittsburgh, Pa. WBAB -FM Babylon, N.Y. WCMI -FM Ashland. Ky. WGAR -FM Cleveland, Ohio WEEX -FM Easton, Pa. WGAU -FM Athens, Ga.(s) WBAI New York, N.Y. WCMO Marietta, Ohio WEER Waukegan, Ill. WBAP -FM Ft. Worth, Tex.(s) WCMS -FM Norfolk, WGAY Silver Spring, Md. Va. WEFM Chicago, III.(s) -FM WBAY Green Bay, Wis.(s) WCMU -FM Mt- Pleasant, Mich. WEGO -FM WGBE Columbus, Ga. WBBB Concord, N.C. W GBH -FM Cambridge, Mass. (s) -FM Burlington, N.C.(s) WCNB -FM Connersville, Ind, WEHH -FM Elmira, N. Y. WBBF -FM Rochester, N.Y. WCNH -FM Quincy, Fla. WGBIFM Scranton. Pa. WEIC -FM Charleston. III. WGBS -FM Miami, Fla. WBBM -FM Chicago, Ill. WCNO Canton, Ohio(s) WEIV Ithaca, N.Y. WBBOFM Forest City, N.C. WCNT -FM Centralia, Ill. WGCB -FM Red Lion, Pa. (s) WEICZ -FM Monroe. Wis. WGCS Goshen, Ind. WBBQ -FM Augusta. Ga. WCNW -FM Hamilton. Ohio WELF Glen Ellyn, Ill. WBBR -FM E. St. Louis, III. WCOA -FM Pensacola, Fla. WELG Elgin, WGEE -FM Indianapolis, Ind. WCOD Ill. WGEM -FM Quincy, III.(s) WBBS Crawfordsville, Ind. Richmond, Va. WELP -FM Easley. S. C. WBBW FM Youngstown, Ohio (s) WCOH -FM Newnan, Ga. WGET -FM Gettysburg, Pa. WEMC Harrisonburg, Va. WGFM Schenectady, N.Y. WBCA -FM Bay Minette, Ala. WCOL -FM Columbus, Ohio WEMI Tampa, Fla. (s) WBCB -FM Levittown -Fairless WCOM.FM Urbana, O. WGGC Glasgow. Ky. WEMP -FM Milwaukee, Wis. WGGM Taylorville, Ill. Hills, Pa. WCON -FM Cornelia, Ga. WEND -FM Ebensburg. Pa. WBCIFM Williamsburg, Va. WCOP -FM Boston, Mass. WON -FM Newport News. Va. WENY -FM Elmira, N. Y. W GH F Brookfield, Conn. (s) WBCL -FM South Beloit, Ill. WCOS FM Columbia, S.C. WEOKFM Poughkeepsie, N.Y. WBCM -FM Bay City. Mich. WCOU -FM Lewiston. Maine WGIG -FM Brunswick, Ga. WEOL-FM Elyria, Ohio WGIR -FM Manchester, N. H. WBCN Boston. Mass.(s) WCOW.FM Sparta, Wis. WEPM -FM Martinsburg, W.Va. WBCO -FM Bucyrus, O. WCPO -FM Cincinnati, Ohio WGKA -FM Atlanta, Ga. WEPS Elgin, Ill. WGLC -FM Mendota, III. WBDG Indianapolis, Ind. WCPS -FM 'Farber, N.C. W EQR Goldsboro, N.C. WBELFM S. Beloit, Ill. WCRAFM Effingham, III. WERE WGLI Babylon, N.Y. -FM Cleveland, Ohio WGLM Richmond, WBEN -FM Buffalo, N.Y. WCRB -FM Waltham, Mass.(s) WERI -FM Westerly, R.I. Ind. WBET -FM Brockton, Mass. WCRD Bluffton, Ind. WERM Wapakoneta, WGLS -FM Glassboro, N. J. Ohio -FM Pa. WBEU -FM Beaufort, S.C.(s) WCRF Cleveland, O. WEBS Boston, Mass. WGMR Tyrone, WBEX -FM Chillicothe, Ohio WCRQ Providence, R. I. WERT WGMS FM Washington, D.C. -FM Van Wert, Ohio WGMZ Flint, Mich.(s) WBEZ Chicago, Ill. WCRS -FM Greenwood, S. C. WESC -FM Greenville. S.C. WBFG Detroit, Mich. WCRT -FM Birmingham. Ala.(s) WGNB St. Petersburg, Fla. WEST -FM Easton, Pa. WGNC WBFM Seneca, S. C. WCSC -FM Charleston, S.C. WETL South Bend Ind. -FM Gastonia, N.C. WBFO Buffalo, N.Y. WCSI -FM Columbus, Ind.(s) WGNO Madison, Ill. WETN Wheaton, 1ÍI. Valdosta, WBGM Tallahassee, Fla. WCSMFM Celina, O. WEVC Evansville. Ind WGOV -FM Ga. WBGO Newark, N.J. WCSQ Central Square, N.Y. WEVD -FM New York, N.Y. WGPA -FM Bethlehem, Pa, WBGU Bowling Green, Ohio WCST FM Berkeley Springs, WEWO -FM (from Ga.) Laurinburg, N.C. WGPC Albany. WBIE -FM Marietta, Ga. W. Va. WEZY -FM Cocoa, Fla. -FM Ga. (s) WBIR Knoxville, Tenn. WCTA -FM Andalusia, Ala. WFAA -FM Dallas, Tex. WGPM Detroit, Mich. WBIV Wethersfield, N.Y. WCTC -FM New Brunswick, N.J. WFAC Mt. WGPR Detroit, Mich.(s) Dora, Fla. WGPS Greensboro, WBJC Baltimore, Md. WCTM Eaton, Ohio WEAR -FM Alliance, Ohio N.C. WBKV -FM West Bend, Wis.(s) WCTW FM New Castle, Ind. WFAN Washington, D.C. WGR -FM Buffalo, N.Y. WBICW Beckley, W.Va. WCUF Akron, Ohio WFAS -FM White Plains, N.Y. WGRE Greencastle, Ind. WBKY Lexington, Ky. WCUM -FM Cumberland, Md. WFAU -FM Augusta, Maine WORN Greenville, Ill. WBLK -FM Depew, N. Y. WCUYFM Cleveland Hts., Ohio WFAW WGRP -FM Greenville, Pa. Fort Atkinson, Wis. WGRV -FM Greeneville, WBLR -FM Datesburg, S. C. WCWC -FM Ripon, Wis. WFBC -FM Greenville, S.C. Tenn. WBLYFM Springfield, Ohio WCWM Williamsburg. Va. WFBE Flint, Mich. WGSU Genesee, N.Y. WBMK -FM West Point, Ga. WCWP Brookville, N. Y. WFBG -FM Altoona, Pa. WGTB -FM Washington, D.C. WGTS -FM Takoma Park. Md. WBM I Meridan. Conn. (s) WDAC Lancaster, Pa. WFBMFM Indianapolis, Ind. WBN E -FM Fitchburg, WDAEFM Tampa, Fla. WFBS -FM WGUC Cincinnati, Ohio Mass. Winston -Salem, N.C. WGVE Gary, Ind. WBNT -FM Oneida, Tenn. WDAFFM Kansas City, Mo. WFCI Franklin, Ind. WBMP WDAO Dayton, Ohio W FCl Miamisburg, Ohlo WGWR -FM Asheboro, N.C. Elwood, Ind. WDAS -FM Philadelphia, WGYA Interlochen, Mich. WBNO -FM Bryan, Ohio Pa. WFCR Amherst, Mass. WDAYFM Fargo, N. D. WFDR WHA -FM Madison, Wis. (s) WBNS -FM Columbus, -FM Manchester, Ga. Ohio (s) WDBJ -FM Roanoke, Va. WFDS -FM Baltimore, Md. WHAD Delafield, Wis. WBOC -FM Salisbury, Md. WDBL -FM Springfield, WHAG -FM Halfway, Md. (s) WBOE Tenn. WFFM Cincinnati, Ohio Cleveland, Ohio WDBN Barberton, O. WFHA -FM Red Bank, WHAT -FM Greenfield,Mass, WBON Milwaukee, Wis. N.J. WHAT WDBO -FM Orlando, Fla. WFH R -FM Wisconsin Rapids,Wis. -FM Philadelphia, Pa. (s) WBOR Brunswick, Maine WDBQ -FM Dubuque, Iowa WHAV -FM Haverhill, Mass. WBOS WFID Rio Piedras, P.R.(s) -FM Brookline, Mass. WDCX Buffalo, N.Y.(s) WFIG Sumter, S.C. WHBB -FM Selma, Ala. WBOW -FM Terre Haute, Ind. WDDE Hamden, WHBC -FM Canton, Ohio WBPZ Conn. WFIL -FM Philadelphia. Pa. -FM Lock Haven. Pa. WDDS -FM Syracuse, N.Y. WFIN -FM Findlay, Ohio(s) WHBF -FM Rock Island, III.(s) WBRBFM Mt. Clemens, Mich. WDEC -FM Americus, Ga. (s) WFIU Bloomington, Ind. WHBI Newark, N.J. WBRC Birmingham, Ala. WDEE Hamden, Conn. WFIW -FM WHBM -FM Xenia, Ohio WBRD -FM Bradenton, Fairfield, 111. WHCI Fla. (s) WDEF -FM Chattanooga. Tenn. WFIZ Conneault, O. Hartford City, Ind, WBRE -FM Wilkes- Barre, Pa. WDELFM Wilmington, Del. WHCL -FM Clinton, N.Y. WBRN -FM WFICO Kokomo, Ind. Big Rapids, Mich. WDET -FM Detroit, Mich. WFLA -FM Tampa, Fla. WHCN Hartford, Conn. WBSM -FM New Bedford, Mass. W D F M State College, Pa. WFLM WHCU -FM Ithaca, N.Y. WBST Ft. Lauderdale, Fla.(s) Muncie, Ind. WDHA -FM Dover, N.J.(s) WFLN -FM Philadelphia, Pa.(s) WHDH -FM Boston, Mass. WBT -FM Charlotte, N.C.(s) WDHF Chicago, Iii. WHDLFM WBTC Houston, WFLO Farmville, Va. Allegheny, N.Y. -FM Mo. W D I F Buffalo, N.Y. WELT WBUD -FM Trenton, -FM Franklin, Tenn. WHEB -FM Portsmouth, N.H. N.J.(s) WDJK Atlanta, Ga. WFLW -FM Monticello, Ky. WHEN -FM WBUF Buffalo, N.Y. WDJK Syracuse. N.Y. Smyrma, Ga. WFLY Troy, N.Y. WHFBFM Benton Harbor, Mich. 124 RADIO -TV EXPERIMENTER

www.americanradiohistory.com C.L. Location C.L. Locatoon C.L. Location C.L. Loeafion Pa. WMUU -FM Greenville, S. C. (s) WHFH Flossmoor. III. aé WJBR Wilmington, Del.(s) WLBR -FM Lebanon. Ind. WLCM -FM Lancaster, S.C. WMUZ Detroit, Mich. WHFI Birmingham, Mich. WJCD -FM Seymour, WMVA -FM Martinsville, Va.(s) N.Y. WJCW -FM Johnson City, Tenn. WLDM Oak Park, Mich.(s) W H F M Rochester, WLDR -FM Traverse City, Mich. WMVBFM Millville, N.J. WHFS Bethesda, Md.(s) WJDX -FM Jackson. Miss. Mount Vernon, Ohio WJEF -FM Grand Rpds., Mieh.(s) WLDS -FM Jacksonville, Ill. WMVOFM WHH I Highland. Wis. WLEC -FM Sandusky, Ohio WMVRFM Sidney, Ohio WHHS Havertown, Pa. WJEH -FM Gallipolis, Ohio WMYB -FM Myrtle Beach, Fla, WJEJ -FM Hagerstown, Md. WLEN Adrian, Mich. WHHY -FM Montgomery. Ala. Ponce, P. R. WMYR -FM Ft. Myers, Fla. Mass. WJET -FM Erie, Pa. WLEO -FM WHIL -FM Medford. WLETFM Toccoa. Ga. WNADFM Norman. Okla. WHIM -FM Providence, R.I. WJGS Houghton. Mich.% WNAS New Albany Ind. WJHL.FM Johnson City, Tenn. WLFM Appleton. Wis. WHIO.FM Dayton, Ohio WLGN -FM Logan, O. WNAVFM Annapolis, Md WHIZ -FM Zanesville. Ohio WJIG -FM Tullahoma, Tenn.(s) WNBC -FM New York, N.Y. WJIM -FM Lansing, Mieh. WLIB -FM New York. N.Y. WHJB Greensburg, Pa. WLIN Detroit, Mich. WNBD -FM Daytona Beach, Fla. WHK -FM Cleveland, Ohio WJIV Cherry Valley. N.Y. WNBFFM Binghamton, N.Y. N.C. WJIZ Albany, Ga. WLIP -FM Kenosha, Wis. WH KP -FM Hendersonville. WLIR Hicksville, N.Y.(s) WNBH -FM New Bedford, Mass. WHKW Chilton, Wis. WJJD -FM Chicago, Ill. Tenn. WNCN New York, N.Y. N. C. (s) WILK -FM Asbury Park, N.J. WLIV -FM Livingston, WHKY -FM Hickory. WLJC Beattyville, Ky. WNCO -FM Ashland, Ohio WHLA Holman. Wis. WJLN Birmingham, Ala. WNCT -FM Greenville. N.C. Y. WJMC -FM Rice Lake, Wis. WLKR -FM Norwalk, Ohio WHLDFM Niagara Falls, N. -FM Lowell, Mass. WNDA Huntsville, Ala.(s) WHLF -FM South Boston, Va. WJMD Bethesda. Md.(s) WLLH WNDU -FM South Bend, Ind. N.Y. WJMJFM Philadelphia, Pa. WLMC Okeechobee. Fla. WHLI -FM Hempstead, WLNA -FM Peekskill, N.Y. WNDY Crawfordsville, Ind. WHLM -FM Bloomsburg, Pa. WJMK Plainfield, Ind. WNEM -FM Bay City, Mich.(5) Huron, Mich. WJML Petoskey, Mich. WLNH -FM Laconia, N.H. WHLS -FM Port WLNO London, Ohio WNES -FM Central City, KY. WHLT -FM Huntington, Ind. WJMX -FM Florence. S.C. WNEWFM New York, N.Y. Ala. WINO -FM Jacksonville, N. C. WLNR -FM Lansing, III, WHMAFM Anniston, Braddock, Pa.(s) WNEX -FM Macon, Ga. WHMD Marinette. Wis. W10F Athens, Ala. WLOAFM WNFM Naples. Fla. Ind. WJOLFM Joliet, Ill.(s) WLOB -FM Portland, Maine W H M E South Bend. WLOC -FM Munfordville, Ky. WNFO -FM Nashville, Tenn.(s) WHMP -FM Northampton, Mass. WJOY -FM Burlington. Vt. WNGO -FM Mayfield, KY. N.C. WJPA -FM Washington. Pa. WLOE -FM Leaksville, N.C. WHNC -FM Henderson, WLOI -FM La Porte, Ind. WNHCFM New Haven. Conn. WHNR McM innville, Tenn. WJRFM Detroit, Mich. WNIB Chicago, Ill. Easton, Pa. WLOLFM Minneapolis. Minn. WHO -FM Des Moines, Iowa WJRH Tenn. WNIC DeKalb, Ill. Jackson, Ala. WJSC -FM Wilberforce, Ohio WLOM Chattanooga, WHOD -FM WLOQ Park, Fla. WNIK.FM Arecibo, P. R. WHOM Hamilton, Ohio WJSM Martinsburg, Pa. Winter Newton, N.J. Jamestown, N.Y. WLOSFM Asheville. N.C. WNNJFM WHOK -FM Lancaster. Ohio WJTN -FM R.I. WNNR -FM New Orleans, La. -FM New York, N.Y. WJVA -FM South Bend, Ind. WLOV Cranston, WHOM W LPO -FM La Salle, III. WNOB Cleveland, Ohio (s) WHOO -FM Orlando, Fla.(s) WJWFM Cleveland, Ohio WNOF St. Paul. Minn. Ky. WJWR Palmyra, Pa. WLPR Mobile. Ala. (s) WHOP -FM Hopkinsville, WLRS Louisville, Ky. WNOK -FM High Point, N.C. WHOS.FM Decatur, Ala. WJZZ Bridgeport, Conn. WNORFM Norfolk, Va. WKAK Kankakee. III. WLRJ Roanoke, Va. WHOV Hampton, Va. WLRW Champaign, Ill. WNOSFM High Point, N.C. WHP -FM Harrisburg. Pa. WKAQ FM San Juan, P.R. Pa. E. Lansing. Mich. WLSFM Chicago. Ill. WNOW -FM York, WHPE -FM High Point, N.C. W KAR -FM Ga.(s) WNRE Circleville, Ohio Highland Park, Mich. W KATFM Miami, Fla. WLTA -FM Atlanta, WHPR Ky. WLUV.FM Loves Park. lll.(s) WNRG -FM Grundy. Va. WHPS High Point, N.C. WKAY -FM Glasgow. WNSL -FM Laurel, Miss. Mass. W K AZ- FM Charleston. W.Va. WLVL Louisville, Ky, WHRBFM Cambridge, Franklin, N. J. WMTH Winnetka, Ill. WHRM Wausau, Wis. WKBCFM N. Wilkesboro, N.C. WLVP N.J. -FM Milan. Tenn. WLYC -FM Williamsport. Pa. WNTI Hackettstown. WHSA Highland Twp, Wis. WKBJ Mass. WNTL Memphis, Tenn. WHSB Alpena. Mich. WKBL.FM Covington, Tenn. WLYMFM Lynn, Ohio WMAG -FM Forest, Miss. WNUR Evanston, III. WHSR -FM Winchester, Mass. WKBN -FM Youngstown, Chicago, III. (s) Miss. WKBR -FM Manchester, N.H. W MAI -FM Panama City, Fla. WNUS -FM WHSY -FM Hattiesburg. State College, Pa. WNWC.FM Arlington Hts., Ill. WHTC Holland. Mich. (s) WKBV -FM Richmond, Ind. WMAJFM -FM W MAL- FM Washington. WNXT -FM Portsmouth. O. WHTG -FM Asbury Park. N.J. WKCQ Berlin. N.H. WNYC -FM New York, N.Y. Tenn. WKCR -FM New York. N.Y. D. C. (s) WHUB -FM Cookeville, WMAM -FM Marinette, Wis. WNYE New York. N.Y. W H U S Storrs, Conn. WKCS Knoxville, Tenn. Camden, N.J. WMAQ -FM Chicago, III.(s) WOAK Royal Oak. Mich. WHWC Colfax, Wis. WKDNFM WOAY -FM Oak Hill, W.Va. WHYL -FM Carlisle, Pa. WKEE -FM Huntington, W.Va. WMAS -FM Springfield, Mass. Kettering, Ohio(s) WMAZ -FM Macon, Ga. WORN Westerville, Ohto WHYN -FM Springfield. Mass. WKET -FM Rhinelander, Wis. (s) WKEY -FM Covington, Va. WMBDFM Peoria, Ill. WOBT -FM WIAC -FM San Juan, P. R. Chicago, III. WOC -FM Davenport. Iowa WIAL Eau Claire, Wis. WKFM Chicago. III.(s) WMBIFM Mass. WI(FR -FM Battle Creek, Mich. WMBM Miami Beach. Fla, WOCB -FM W. Yarmouth. WIAMFM Williamston, N.C. Auburn, N.Y. WOCH -FM North Vernon, Ind. WIAN Indianapolis. Ind. WKHM -FM Jackson. Mich. WMBO -FM Hazard. Ky. WMC -FM Memphis, Tenn. WODL -FM Carbondale. Pa. WIBAFM Madison, Wis. WKIC -FM Fla. (s) WOHS -FM Shelby. N.C. WIBCFM Indianapolis, Ind. WKIP -FM Poughkeepsie. N.Y. WMCF Stuart, Fla. WMCO New Concord. Ohio WOIFM Ames. Iowa WIBF Jenkintown, Pa. WKISFM Orlando, De Ruyter, N.Y. Pa. W KIXFM Raleigh, N.C. WMDD -FM Fajardo, P. R. WOIV WIBG -FM Philadelphia, Greensboro, N.C.(s) WOKZ -FM Alton, Ill. WIBM -FM Jackson, Mich. WKIZ -FM Key West, Fla. WMDE D.C. Mayaguez. P. R. WMEB -FM Orono. Maine WOL -FM Washington, WIBW -FM Topeka, Kan. WKJB -FM WOLA San Juan, P.R. WICB Ithaca, N.Y. WKJF Pittsburgh, Pa.(s) WMER Celina, Ohio WMEV -FM Marion, Va. WOLI Ottawa, Ill. WICR Indianapolis,Ind. WKJG -FM Ft. Wayne, Ind. WOMC Royal Oak, Mich.(s) Pa. (s) WKKD -FM Aurora. Ill. WMFM Madison, Wis.(s) WIFI Philadelphia, WMFP Ft. Lauderdale, Fla. WOMIFM Owensboro. KY. WI FN Franklin, Ind. WKKY -FM Erlanger, Ky. WOMP -FM Bellaire, Ohio Ind. W KLF -FM Clanton, Ala. WMFR -FM High Point, N.C. WI KY -FM Evansville. City. N.J. WONEFM Dayton. O. WIL -FM St. Louis, Mo. WKLS Marietta. Ga.(s) WMGM Atlantic N. Y. (s) Mieh. WMGW -FM Meadville. Pa. WONO -FM Syracuse. WILE -FM Cambridge. O. WKLW -FM Grand Rapids, WOOD -FM Urbana, Ill. WKMH -FM Dearborn, Mich. WMHC South Hadley. Mass. WILL-FM WMHE Toledo, Ohio Grand Rapids. Mieh.(s) WILO -FM Frankfort. Ind. WKMI -FM Kalamazoo, Mich. Ala. (s) Ind. WMIL -FM Milwaukee, Wis. WOOF -FM Dothan, WILS -FM Lansing. Mich. WKMO Kokomo. WOPAFM Oak Park, III. WIMA -FM Lima, Ohio WKNA Charleston, W.Va.(s) WMIT Black Mountain,N.C. WMIV S. Bristol, N.Y. WOPI -FM Bristol, Tenn. WINA -FM Charlottesville, Va. WKNE -FM Keene, N.H. New York, N.Y. Kent, O. WMIXFM Mt. Vernon, III. WOR -FM WINE -FM Kenmore, N.Y. WKNT -FM Fla. WORA -FM Mayaguez. P.R. -FM Ft. Myers, Fla. WKOF Hopkinsville, Ky. WMJR Ft. Lauderdale. WINK WMKY -FM Morehead, Ky. WORXFM Madison, Ind. WINT -FM Winter Haven, Fla. WKOK -FM Sunbury. Pa. -FM Fulton. N.Y. WINZ -FM Miami, Fla. WKOP -FM Binghamton, N.Y. WMLS -FM Sylacauga, Ala. WOSC Framingham, Mass. WMLW Milwaukee, Wis. WOSE Oswego, N. Y. WIOD -FM Miami. Fla. WKOX -FM Fia. WOSU -FM Columbus. Ohio WIPFM Philadelphia, Pa. WKOZ -FM Kosciusko, Miss. WMMB -FM Melbourne, Tenn.(s) WMMM Westport. Conn. WOTW -FM Nashua, N.H. WIPR -FM San Juan. P.R. WKPT -FM Kingsport, Va. WOUBFM Athens, Ohio Fla. W K RC -FM Cincinnati. Ohio (s) WMNA -FM Gretna, WIRA -FM Ft. Pierce, WMNB -FM North Adams, Mass. WOW -FM Omaha. Nebr. WIRC -FM Hickory. N. C. (s) WKRG -FM Mobile, Ala. Ohio Cortland, N.Y. (s) WOXR Oxford, WIRJ -FM Humboldt, Tenn. WKRTFM Ohio WOVE -FM Mayaguez, P. R. Isabela. P.R. WKSNFM Jamestown, N. Y. WMNI -FM Columbus, WISA -FM WMOP -FM Ocala. Fla. WPAA Andover, Mass. WIRQ Rochester, N.Y. WKSU -FM Kent, Ohio -FM Ponce. P. R. Ind.(s) McKenzie, Tenn. WMOR -FM Morehead, Ky. WPAB WISH -FM Indianapolis, WKTA Berlin, N.H. WPAC -FM Patchogue, N.Y.(s) WISM -FM Madison. Wis.(s) WKTL Struthers, O. WMOU -FM Ky. S.C. WMPS-FM Memphis, Tenn. WPAD -FM Paducah, WISN -FM Milwaukee, Wis. WKTM N. Charleston, -FM Paterson, N. J. (s) Mayfield, Ky.(s) WMRFFM Lewistown. Pa, WPAT WIST -FM Charlotte, N.C. W KTMFM Marion, Ind. WPAYFM Portsmouth, Ohio (s) WISU Terre Haute, Ind. WKTN -FM Kenton. O. WMRI -FM Fla.(s) WMRN -FM Marion. Ohio WPBC -FM Richfield, Minn. (s) WISZ -FM Glen Burnie, Md. W KTZ -FM Jacksonville, WPBF W. Palm Beach, Fla. P.R. K -FM Wheeling. W.Va. WMRO -FM Aurora, III. WITA -FM San Juan, W KW WMRPFM Flint. Mich. WPBS Philadelphia, Pa. WITHFM Baltimore, Md. WKYX -FM Paducah, KY. Pa. WPBS Philadelphia, Pa. (s) -FM Washington, N. C. WLAC -FM Nashville, Tenn. WMSH -FM Elizabethtown, WITN WMSP Harrisburg, Pa. WPEA Exeter, N.H. WITZ -FM Jasper, Ind. WLADFM Danbury, Conn. WPEL -FM Montrose, Pa. Conn. WMSR -FM Manchester, Tenn. WIUS Christiansted. V.I. WLAE Hartford, Iowa (s) WPEN -FM Philadelphia, Pa. Cristiansted, WLAG -FM LaGrange, Ga. (s) WMT -FM Cedar Rapids, WIVI.FM WMTH Park Ridge, Ill. WPEX -FM Pensacola, Fla.(s) St. Croix, V. I. WLAM -FM Lewiston, Me. WPFB -FM Middletown. Ohio (s) -FM Jacksonville, Fla. Lancaster, Pa. WMTI Norfolk, Va. WIVY WLAN.FM WMTM -FM Moultrie, Ga. WPFK Las Angeles, Cal. WIXN -FM Dixon, III. WLAP.FM Lexington, Ky. Tex.(s) WPFM Providence. R.t.(e) WIZZ -FM Streator, Ill. WLAT -FM Conway, S.Ç. WMTN -FM Morristown. W MTW -FM WPFR Terre Haute, Ind. WJAC -FM Johnstown, Pa.(s) WLAV -FM Grand Rapids. Mich. N.H.(s) WPGC Bradbury Hts., Md. WJAS -FM Pittsburgh, Pa. WLAY -FM Muscle Shoals, Ala. Mt. Washington, WMUA Amherst. Mass. WPGF -FM Burgaw, N.C. WJAX -FM Jacksonville, Fla. WLBA -FM Gainesville. Ga. Pa. WIAZ Albany, Ga. WMUB Oxford, Ohio WPG1 Pittsburgh. WLBB -FM Carrollton, Ga. WPHS Warren, Mich. WJBCFM Bloomington. III. WLBG.FM Laurens -Clinton, S.C. WMUK Kalamazoo. Mich. WJB1 Cincinnati, Ohio WMUL Huntington, W.Va. WPICFM Sharon. Pa. Detroit, Mich. WLBH -FM Mattoon, III. WPIN -FM St. Petersburg, Fla. WJBK -FM WLBJ -FM Bowling Green, Ky. WMUS -FM Muskegon, Mich. WJBL -FM Holland. Mich. WMUN Muncie, Ind. WPIT -FM Pittsburgh, Pa. WJBO -FM Baton Rouge. La. WLBK -FM DeKalb, III. 125 JANUARY. 1966

www.americanradiohistory.com WHITE'S C.L. Location I C.L. Location C.L. Location WROY -FM Carmi, Ill. WSVA -FM Harrisonburg, Va. WVJSFM Owensboro, Ky. WRP1 Troy, N.Y. WSVB Tamaqua, Pa. WVKC -FM WRPM -FM Poplarville, Galesburg, III. L_r-t.lO Miss. WSVL -FM Shelbyville, turf. WVKO -FM Columbus, Ohio WRPN -FM Ripon, Wis. WSVS -FM Crewe, Va. WVLK -FM Lexington, Ky.(s) W RR -FM Dallas, Tex. (s) WSWG Greenwood, Miss. WVLR Sauk City, Wis. WRRH Franklin Lakes, N.J. WSWM East Lansing, Mich,(s) WVMCFM Mt. Carmel, Ill. WRRN Warren, Pa. WSWN -FM Belle Glade, Fla. WVNA -FM Tuscumbia, Ala. ao@ WRSA Decatur, Ala. WSYRFM Syracuse, N.Y.(s) WVNJ -FM Newark, N.J. WRSC -FM State College, Pa. WTAB -FM Tabor City, N. C. WVNOFM Mansfield, WRSJ -FM Bayamon, P.R. Ohio(s) C.L. WTAD -FM Quincy, Ill. WVOR Rochester, N.Y. Location WRSV Skokie, Ill. WTAP -FM Parkersburg, W. Va. WVOS -FM Liberty, N.Y. WRSE -FM Elmhurst, Ill. WTAR Norfolk, WPIX -FM New York, N. Y. Va.(s) WVOT -FM Wilson, N.C. WRSJFM Bayamon, P. R. WTAS Crete, Ill. WVOX -FM New WPJB -FM Providence, R.I. WRSW -FM Rochelle. N.Y. WPKE Warsaw, Ind. WTAW -FM College Station, Tex. WVOZ -FM Carolina, P. R. -FM Pikeville, Ky. WRTC -FM Hartford, Conn. WTAX WPKM Tampa, Fla. -FM Springfield, Ill. (s) WVPO -FM Stroudsburg, Pa. WPLB WRTIFM Philadelphia, Pa. WTAYFM Robinson, 111, WVQM Huntington, W.Va. Greenville, Mich. WRUF -FM Gainesville, Fla. WTBC WPLM -FM Plymouth, Mass. -FM Tuscaloosa, Ala. WVSC -FM Somerset, Pa. WRUNFM Utica, N.Y. WTBO -FM Cumberland, Md. WVSH Huntington, WPLN Nashville, Tenn. WRUS -FM Russellville, Ind. WPLO -FM Atlanta, Ky. WTBS Cambridge, Mass. WVST St. Petersburg, Fla. Ga. WRVA -FM Richmond, Va. WTCM -FM Traverse City, Mich. WPMP -FM Pascagoula, Miss. WRVB -FM WVTS Terre Haute. Ind.(s) WPPA -FM Madison, Wis. WTCO -FM Campellsville, Ky. WVUD -FM Kettering, Ohio Pottsville, Pa. WRVC Norfolk, Va. WTCW -FM Whitesburg, Ky. WPRB Princeton, N.J. WRVG WVVV Blacksburg, Va. WPRK Georgetown, Ky. WTCX St. Petersburg, Fla.(s) WVWO -FM Cheyenne, Wyo. Winter Park, Fla. WRVP New York, N.Y. Toledo, WPRM San Juan, WTDS Ohio WWCF Greenfield, Wis. P.R. WRW R Port Clinton, Ohio(s) WTFM Lake Success, N.Y.(s) WPRO -FM Providence, R.I. WRXO WWDC -FM Washington, D.C. WPRS -FM Roxboro, N.C. WTGI Hammond, La. WWDL-FM Scranton, Pa. (s) -FM Paris. Ill. WRYT -FM Pittsburgh, Pa. WTHI -FM Terre Haute, WPRW -FM Manassas, Va. Ind. WWDL Scranton, Pa. (s) WSAB Mt. Carmel, Ill. WTHS Miami, Fla. WWGP -FM Sanford, WPSR Evansville, Ind. WSAC -FM Ft. Knox. Ky. N.C. WPTF -FM Raleigh, N.C. WTIC -FM Hartford, Conn.(s) WWHC Hartford City. Ind. WSAE Spring Arbor, Mich. WTIO Charleston, W. Va. WWHGFM Hornell, WPTH Fort Wayne. Ind. (s) WSAL -FM Logansport. Ind. N.Y. WPTN -FM Crookeville, Tenn. WTJS -FM Jackson, Tenn. WWHI Muncie, Ind. WSAM -FM Saginaw, Mich. WTJU Charlottesville, Va. WWHO Jackson, Miss, WPTW -FM Piqua, Ohio WSAU -FM Wausau, Wis. WTMA -FM WPWT Philadelphia, Pa. Charleston, S.C. WWILFM Ft. Lauderdale, Fla. WSB -FM Atlanta, Ga.(s) WTMB -FM Tomah, Wis. WW1-FM Detroit, Mich. WQAL Philadelphia, Pa.(s) WSBA -FM York, Pa. WQDCFM Midland, Mich.(s) WTMJ -FM Milwaukee, Win,(s) WWJC -FM Superior, Wis. WSBC -FM Chicago, III.(s) WTNC -FM Thomasville, N.C. W W KS Macomb, WQFM Milwaukee, Wis. WSBF -FM Clemson, Ill. WQMF S.C. WTOA Trenton, N.J. WWLA La Crosse, Wis. Babylon, N.Y.(s) WSCB Springfield, Mass. WTOC -FM Savannah, Ga. W QM G Greensboro, N.C. (s) WWMO Reidsville, N.C. WSC1 -FM Platteville, Wis. WTOD -FM Toledo, Ohio WWMT New Orleans, La.(s) WQMS Hamilton, Ohio WSDM Chicago, 111, WTOF Canton, Ohio WQRB -FM Pittsfield, Mass. WWOD -FM Lynchburg, Va. WSEB Sebring, Fla. WTOL -FM Toledo, Ohio WWOG Boca Raton, Fla. WQRSFM Detroit, Mich. WSEI Olney, Ill. WTOP -FM Washington, D.C. WQXI -FM Atlanta, Ga. WWOLFM Buffalo, N.Y. WSEL -FM Pontotoc, Miss. WTOS Wauwatosa, Wis. W WOM -FM New Orleans, La. WQXRFM New York, N.Y.(s) WSEV -FM Sieverville, Tenn. (s) WTOTFM Marianna, Fla. W RAD -FM Radford, Va. WWON -FM Woonsocket. R.I. WSFC -FM Somerset. Ky. WTRC -FM Elkhart, Ind. WWOS Palm Beach, Fla. WRAJ -FM Anna, Ill. WSFM Birmingham, Ala.(s) WTRE Greensburg, Ind, WRAK -FM Williamsport, Pa. WWPB Miami, Fla(s) WSHS Floral Park, N.Y. WTRF -FM Wheeling, W.Va, WWST -FM Wooster, Ohio WRALFM Raleigh, N.C. WSHU Fairfield, Conn. WTSB -FM Lumberton, N.C. WRAY -FM Princeton, Ind. WWSW -FM Pittsburgh, Pa. WSID Baltimore. Md. WTES -FM Buffalo, N.Y. WWTV -FM Cadillac, Mleh. WRBL -FM Columbus, Ga. WSIM -FM Salem,ind. WTSV -FM Claremont, N.H. WRBS Baltimore, WWVAFM Wheeling, W.Va. Md. WSIP -FM Paintsville, Ky. WTTC -FM Towanda, Pa. WWWS Greenville, N.C. WRC -FM Washington, D.C. WSIU Carbondale, Ill. WTTF -FM Tiffin, Ohio WRCO -FM Richland Center, Wis. WWYNFM Erie, Pa. (s) WSIV -FM Pekin, Ill. WTTR -FM Westminster, Md. WXAX Elkhart, Ind. WREC -FM Memphis, Tenn. WSIX -FM Nashville. Tenn.(s) WTTV -FM Bloomington, Ind. WRED Youngstown,Ohio WXBM -FM Milton, Fla. WSJG Hallandale, Fla. WTUN Tampa, Fla. WXBR Cocoa Beach, Fla. WREK Woodstock, Ill. WSJS -FM Winston -Salem, N.C. WTVNFM Columbus, Ohio WREOFM Ashtabula, Ohio WXEL Louisville, Ky. WSKS Wabash. Ind. WUAG Greensboro, N. C. WXEN -FM Cleveland, Ohio WRFD -FM Worthington - WSLN Delaware, Ohio WUCBFM Chicago, Ill. Columbus, Ohio WXFM Elmwood Park, 111, WSLSFM Roanoke, Va.(s) WUFM Utica, N.Y.(s) WXHR -FM Boston, Mass. WRFK Richmond, Va. WSLU Canton, N.Y. WUHY -FM Philadelphia, Pa. WRFL Winchester, Va. WULX WXPN Philadelphia, Pa. WSMC -FM Collegedale. Tenn. -FM Richmond, Ind. WXQR -FM Jacksonville, N. C. WRFM New York. N.Y. WSMD -FM Waldorf, Md. WUNC Chapel Hill, N.C. W RFS -FM Alexander City, Ala. WXRA Woodbridge, Va. WSMIFM Litchfield, Ill. WUNH Durham, N.H. WXRFFM Guayama, P. R. WRFY -FM Reading, Pa. WSMJ Greenfield. Ind. WUOA Tuscaloosa, Ala. WRGA -FM Rome, Ga. WXRI Norfolk, Va. WSMTFM Sparta, Tenn. WUOM Ann Arbor Mich. WXTC Annapolis. Md. WRHS Park Forest. III. WSN1 -FM Bridgeton, N.J. WUOT Knoxville, Tenn. WRIG -FM Wausau, Wis. WXTO -FM Grand Rapids, Mich. WSOC-FM Charlotte, N.C. WUPY Lynn, Mass.(s) WXUR WRIP -FM Roseville, Ga. WUSC -FM -FM Media. Pa. WSOM -FM Salem, Ohio Columbia, S.C. WXYW Suffolk, Va. WRIT -FM Milwaukee. Wis. WSONFM Henderson. Ky, WUSF Tampa, Fla. WRIU Kingston, R. WXYZ -FM Detroit, Mich. I. WSOU S. Orange, N.J. WUST -FM Bethesda. Md. WYAK WRJN -FM Racine, Wis. WUSV Scranton, Sarasota, Fla(s) WSOY -FM Decatur, Ill. Pa. WYBCFM New Haven. Conn. WRJR Lewiston, Maine WSPA -FM Spartanburg, S.C.(s WUWM Milwaukee, Wis. WRKB -FM Kannapolis, N.C. WYDD New Kensington, Pa. WSPB -FM Sarasota, Fla, WVAF -FM Charleston, WYCA Hammond, WRKOFM Boston, Mass. WSPD -FM Toledo, Ohio W. Va. (s) Ind. WRKT -FM Cocoa Beach, Fla.(s) WVAM WYCE Warwick, R.I. WSPE Springville, N.Y. -FM Altoona. Pa. WYCR York WRLB Long Branch, N.J.(s) WSPTFM Stevens Paint, Wis. WVBRFM Ithaca, N.Y. -Hanover, Pa. WRLD -FM Lanett, Ala. WYFE Lansing, Mieh. WSRC -FM Durham, N. C. WVBU -FM Lewisbury, Pa. WYFI Norfolk, Va.(s) WRLM N. Attleboro, Mass. WSRS Wonchester, Mass. WVCA -FM Gloucester, Mass. WRMI -FM Morris, Ill. WVCG -FM Coral Gables, Fla.(s) WYFM Charlotte, N.C. WSRW -FM Hillsboro, Ohio WYFS Winston -Salem, N.C. WRMNFM Elgin, Ill. WSTC -FM Stamford, Conn. WVECFM Hampton, Va. WRNJ Atlantic N.J. WYON Grand Rapids, Mich. City, WSTO Owensboro, KY. (s) WVEM Springfield, III. WRNL -FM Richmond, Va. WVFM Lakeland, Fla. WYSL -FM Buffalo, N.Y. WRNW Mount Kisco, N.Y, WSTPFM Salisbury, N.C. WYSO Yellow Springs. WSTR -FM WVGR -FM Grand Rapids, Mleh. Ohio WROA -FM Gulfport, Miss. Sturgis, Mich. WVHC Hempstead, N.Y, WYZZ Wilkes-Barre, Pa. WROC WSTU -FM Stuart, Fla. -FM Rochester, N.Y. W V H I Evansville, Ind. WZAK Cleveland, O. WROK -FM Rockford, Ill. WSTV -FM Steubenville, Ohio WVIC -FM E. Lansing, Mich. WZEP -FM DeFuniak, WROMFM Rome, Ga. WSUP Platteville, Wis. WVIP -FM Mount WROWFM Kisco, N.Y. Springs, Fla. Albany, N.Y. WSUW Whitewater, Wis. WVIS Terre Haute, Ind, WZIP -FM Cincinnati, Ohio

Canadian AM Stations By Call Letters

C.L. Location Kc. C.L. Location Kc. C.L. Location Kc. C.L. Location Kc. CBA Sackville. N.B. 1070 CBU Vancouver, B.C. 690 CFCF Montreal, Que. 600 CFJC Kamloops, B.C. 910 CBAF Moncton, N.B. 1300 CBV Quebec, Que. 980 CFCH Callander, Ont. CFJR CBD 600 Brockville, Ont. 450 Saint John, N.B. 1110 CBR Calgary, Alta. 1010 CFCL Timmins, Ont. 620 CF KL Schefferville, Que. 230 CBE Windsor, Ont. 1550 CBW Winnipeg, Man, 990 CFCN Calgary, Alta. CFLM La Tuque, Que. CBF 1060 240 Montreal, Que. 690 CBX Edmonton, Alta. 740 CFCO Chatham, Ont. 630 CFLV Valleyfield, Que. 370 CBG Gander, Nfld. 1450 CBY Corner Brook, Nfld. 990 CFCP Courtenay, B.C. 1440 CFMB Montreal, Que. 410 CBH Halifax, N.S. 860 CBZ Fredericton, N.B. 970 CFCW Camrose, Alta. 790 CFML Cornwall, CBI Sydney, Ont. I10 N.S. 1140 CFAB Windsor, N. S. 1450 CFCY Charlottetown, P.E.I. 630 CFM R Fort Simpson, CBJ Chicoutimi, Que. 1580 CFAC Calgary, Alta. 960 CFDA Victoriaville, Que. 1380 N.W.T. 490 CBK Regina, Sask. 540 CFAM Altona, Man. 1290 CFDR Dartmouth, N.S. 790 CFNB Fredericton, N.B. 550 CBL Toronto, Ont. 740 CFAR Flin Flon, Man. 590 CFGB Goose Bay, N.B. 970 CFNS Saskatoon, Sask. 170 CBM Montreal, Que. 940 CFAX Victoria, B.C. 1070 CFGM Richmond Hill, Ont. 1310 CFOB Fort Frances, Ont, 800 CBN St. John's, Nfld. 640 CFBC Saint John, N.B. 930 CFGP Grande Prairie, Alta. 1050 CFOM Quebec, Que. 340 CBO Ottawa, Ont. 910 CFBR Sudbury, Ont. 550 CFGR Gravelbourg, Sask, 1230 CFOR Orillia, Ont. 570 CBOF Ottawa, Ont. 1250 CFBV Smithers, B.C. 1230 CFGT Saint -Joseph- d'Alma, CFOS Owen Sound. Ont. 560 CBT Grand Falls, Nfld. 540 CFCB Corner Brook, Nfld, 570 Que. 1270 CFOX Pointe Claire, Que. 470

126 RADIO -TV EXPERIMENTER

www.americanradiohistory.com Kc. C.L. Location Kc. C.L. Location Kc. C.L. Location Kc. C.L. Location Nelson. B.C. 1390 CFPA Port Arthur, Ont. 12 30 CHUC Cobourg, Ont. 1450 CKAC Montreal, Que. 730 CKLN Toronto. Ont. 1050 CKAD Middleton, N.S. 1490 CKLS La Sarre, Que. 1240 CFPL London, Ont. 9 80 CHUM Ont. 800 8 60 Chilliwack. B.C. 1270 C K A R Huntsville. Ont. 630 CKLW Windsor. CFPR Prince Rupert, B.C. CHWK 910 Sask. 6 00 CHWO Oakville. Ont. 1250 CKARI Huntsville. Ont. 1340 CKLY Lindsay. Ont. CFQC Saskatoon. Que. 610 Ont. 5 80 CHYM Kitchener, Ont. 1490 CKAY Duncan, B.C. 1500 CKML Mont Laurier, CFRA Ottawa, Ont. 1230 CFRB Toronto, Ont. 10 10 CJAD Montreal. Que. 800 CKBB Barrie, Ont. 950 CKMP Midland, Ont. 14 90 CJAF Cubano, Que. 1240 CKBC Bathurst, N.B. 1360 C K M R Castle Street, CFRC Kingston, 790 Sask. 7 10 CJAT Trail, B.C. 610 CKBI Prince Albert, Sask. 900 Newcastle, N.B. CFRG Gravelbourg, 950 Alta. 12 60 CJAV Port Alberni, B.C. 1240 CKBL Matane, Que. 1250 CKNB Campbellton, N.B. CFRN Edmonton, B.C. 560 CF RS Simeon, Ont. 15 60 CJBC Toronto, Ont. 860 CKBM Montmagny, Que. 1490 CKNL Fort St. John, Prairie, CJBM Causapscal, Que., with CKBS St. Hyacinthe, Que. 1240 CKNW New Westminster, CFRY Portage la 980 Man. 9 20 Studio at Rimouski, Que. 14 50 CKBW Bridgewater, N.S. 1000 B.C. CFSL Weyburn, Sask. 13 40 CJBQ Belleville, Ont. 8 00 CKCH Hull, Que. 970 CKNX Wingham, Ont. 920 Stephenville, Nfld. 9 10 CJBR Rimouski, Que. 90 0 CKCK Regina, Sask. 620 CKOC Hamilton. Ont. IÌ0 CFSX 8050 Ont. 11 10 CJCA Edmonton. Alta. 9 30 CKCL Truro, N.S. 600 CKOK Penticton, B.C. CFTJ Galt, 1250 CFTK Terrace, B.C. 5 90 CMCB Sydney, N.S. 12 70 CKCM Grand Falls, Nfld. 620 CKOM Saskatoon, Sask. B.C. 14 10 CJCH Halifax, N.S. 9 20 CKCN Sept -Iles, Que. 560 CKOT Tillsonburg, Ont. 1510 CFUN Vancouver, 630 Abbotsford, B.C. 12 40 Woodstock, N.B. 9 20 CKCQ Quesnel, B.C. 570 CKOV Kelowna. B.C. CFVR CJCJ 1340 B.C. 14 90 CJCN Grand Falls, Nfld. 6 80 CKCV Quebec, Que. 1280 CKOX Woodstock. Ont. CFWB Campaell, 1310 CFWH Whitehorse, Y.T. 5 70 CJCS Stratford, Ont. 12 40 CKARI Huntsville, Ont. 1340 CKOY Ottawa. Ont. N.W.T. 13 40 CJDC Dawson Creek, B.C. 13 50 CKAY Duncan, B.C. 1500 CKPC Brantford. Ont. 1980 CFYK Yellowknife, 50 CHAB Moose Jaw. Sask. 8 00 CJDV Drumheller, Alta. 9 10 CKBB Barrie, Ont. 950 CKPG Prince George. B.C. CHAD Amos, Que. 13 40 CJEM Edmundston, N.B. 5 70 CKBC Bathurst, N.B. 1360 CKPM Ottawa. Ont. 1440 CHAK Inuvik N.W.T. 8 60 Cl ET Smiths Falls. Ont. 6 30 CKBI Prince Albert, Sask. 900 CKPR Port Arthur, Ont. CHAT Medicine Hat. Alta. 12 70 CJFP Rivière- duLoup. Que. 14 00 CKBL Matane, Que. 1250 CKPT Peterborough, Ont. 1420 CHCM Marystown, Nfld. 5 60 CJFX Antigonish, N.S. 5 80 CKBM Montmagny, Que. 1490 CKRB Cté de Beauce. Que. 1460 EC Lethbridge, Alta. 10 90 CJGX Yorkton, Sask. 9 40 CKBS St. Hyacinthe, Que. 1240 CKRC Winnipeg, Man. 680 CH 850 Edmonton, Alta. 6 30 Vernon, B.C. 9 40 CKBW Bridgewater, N.S. 1000 CKRD Red Deer, Alta. CHED CJIB 980 CHEF Granby, Que. 14 50 CLIC Sault Ste. Marie, Ont. ICI 50 CKCH Hull, Que. 970 CKRM Regina, Sask. CH EX Peterborough, Ont. 980 CJJC Langley, B.C. 850 CKCK Regina, Sask. 620 CKRN Rouyn, Que. 1400 Edmonton, Alta. 680 Kirkland Lake, Ont. 560 CKCL Truro, N.S. 600 CKRS Jonquiere, Que. 590 CHFA CJKL 1080 CHFC Churchill, Man. 1230 CJ LM Joliette. Que. 1350 CKCM Grand Falls, Nfld. 620 CKSA Lloydminster, Alta. CHFI Toronto, Ont. 1540 CJLR Quebec, Que. 1060 CKCN Sept -Iles. Que. 560 CKSB Saint-Boniface, Man. 1050 CHGB Sainte- Anne- de -la. CAS Yarmouth, N.S. 1340 CKCQ Quesnel, B.C. 570 CKSL London, Ont. 1410 Pocatiere, Que. 1310 CJLX Fort William, Ont. 800 CKCR Kitchener. Ont. 1490 CKSM Shawinigan, Que. 1220 CHIC Brampton, Ont. 790 CIME Regina, Sask. 1300 CKCV Quebec, Que. 1280 CKSO Sudbury, Ont. 790 CHIQ Hamilton, Ont. 1280 CJMS Montreal, Que. 12 80 CKCW Moncton, N.B. 12 20 CKSW Swift Current. Sask. 1400 CH LC Saguenay Co.. Que. 5 80 CJMT Chicoutimi, Que. 14 20 CKCY Sault Ste. Marie, Ont. 9 20 CKTB St. Catharines, Ont. 610 CH LN Trois -Rivières. Que. 5 50 CJNB North Battleford, CKDA Victoria, B.C. 12 20 CKTK Kitimat. B.C. 1230 CHLO St. Thomas, Ont. 6 80 Sask. 10 50 CKDH Amherst, N.S. 9 00 CKTR TroisRivieres. Que. 1150 CH LT Sherbrooke, Que. 6 30 CJNR Blind River, Ont. 730 CKDM Dauphin. Man. 7 30 CKTS Sherbrooke. Que. 900 CH ML Hamilton, Ont. 9 00 CIOB Winnipeg, Man. 680 CKDR Kenora. Ont. Studio CKDA Edmonton. Alta. 580 CHNC New Carlisle, Que. 6 10 CJOC Lethbridge. Alta. 1220 at Station CJRL 9 00 CKVD Val -d'Or. Que. 1230 CHNO Sudbury. Ont. 9 00 CJON St. John's, Nfld. 930 CKEC New Glasgow, N.S. 13 20 CKVL Verdun, Que. 850 CHNS Halifax, N.S. 9 60 CJOR Vancouver, B.C. 600 CKEK Cranbrook, B.C. 5 70 CKVM Ville- Marie, Que. 710 CHOK Sarnia, Ont. 10 70 CIO X Grand Bank, Nfld. 710 CKEN Kentville. N.S. 13 50 Lake, B.C. 1240 Ont. 13 50 1460 90 CKWL Williams CHOV Pembroke, CJOY Guelph, Ont. CKEY Toronto, Ont. 5 Kingston, Ont. 960 Welland, Ont. 14 70 Winnipeg, Man. 1470 Toronto. Ont. 14 30 CKWS CHOW CJQM CKFH Ont. 580 CHQM Vancouver. B.C. 13 20 CJRL Kenora, Ont. 1220 CKGB Timmins, Ont. 6 80 CKWW Windsor, CHQR Calgary, Alta. 8 10 CJRN Niagara Falls, Ont. 1600 CKGM Montreal, Que. 9 80 CKWX Vancouver, B.C. 1130 CH RC Quebec. Que. 8 00 CJRW Summerside, P.E.I. 1240 CKJL SaintJéreme, Que. 9 00 CKX Brandon, Man. 1150 CHRD Drummondville, Que. I 340 CISL Estevan. Sask. 1280 Kitchener, Ont. 13 20 CKXL Calgary, Alta. 1140 9 10 CKKW CHRL Roberval, Que. MO Sorel, Que. 1320 Oshawa, Ont. 13 50 CKY Winnipeg, Man. 580 Cartier, Que. I 090 710 CKLB CH RS Jacques- CJSP Leamington, Ont. Kingston, Ont, 13 80 CKYL Peace River, Alta. 610 Saint John. N.B. 11 50 Ont. 1220 CKLC CHSJ CJSS Cornwall, Mines, Que. 12 30 VOAR St. John's, Nfld. 1230 Altona, Man. 12 50 CJV1 Victoria, B.C. 900 CKLD Thetford CHSM 7 30 VOCM St. John's. Nfld. 590 CHTM Thompson, Man. 6 10 CJWA Sault Ste. Marie, CKLG Vancouver, B.C. Montreal. Que. 15 70 VO W R St. John's, Nfld. 800 CHUB Nanaimo, B.C. I 570 Ont. 1240 CKLM

Canadian FM Stations by Call Letters Abbreviations: (s) broadcasts stereo C.L. Location C.L. Location C.L. Location C.:L. Location 95.9 -FM Vancouver. B.C. 99.3 CBC -FM Toronto, Ont, 99.1 CFRN -FM Edmonton, Alta, 100.3 CJFM -FM Montreal, Que. CKLG EC -FM Lethbridge, Alta. 100.9 C11C -FM Sault Ste. Marie, CKLW -FM Windsor, Ont. 93.9 CBF -FM Montreal. Que. 95.1 CH .FM Penticton, B.C. 97.1 CBMFM Montreal, Que. 100.7 CHFI -FM Toronto, Ont. 98.1 Ont. 100.5 CKOK -FM Calgary, Alta. 95.9 C1 MS -FM Montreal. Que, 94.3 CKPC -FM Brantford, Ont. 92.1 CBO -FM Ottawa, Ont. 103.3 CHFM Port Ont. 94.9 B.C. 105.7 CHIC -FM Brampton, Ont. 102.1 CIOB -FM Winnipeg, Man. 97.5 CKPRFM Arthur. CBU -FM Vancouver, 104.7 Winnipeg, Man. 94.3 CFBC -FM Saint John. N.B. 98.9 CHLT -FM Sherbrooke, Que. 102.7 CJOV -FM Kelowna, B.C. CKQM -FM Red Deer, Alta. . 98.9 CFCF -FM Montreal, Que. 92.5 CH MLFM Hamilton, Ont, 95.3 CIRT -FM Toronto, Ont. 91.1 CKRD.FM CFFM -FM Kamiloops, B.C. 98.3 CHNS -FM Halifax, N.S. 96.1 MS-FM Cornwall, Ont. 104.5 CKTB -FM St. Catharines. CFMC -FM Saskatoon, Sask. 103.9 CHRC -FM Quebec, Que. 98.1 CKCY -FM Sault Ste. Ont. 97.7 CFMO.FM Ottawa. Ont. 93.9 CHUM -FM Toronto, Ont. 104.5 Marie, Ont. 104.3 CKUA.FM Edmonton, Alta. 98.1 CFMS -FM Victoria, B.C. 98.5 CHYM -FM Kitchener, Ont. 96.7 CKFM -FM Toronto, Ont. 99.9 CKVL -FM Verdun, Que. 96.9 St. Norbert CFMW -FM CJBQ -FM Belleville, Ont. 97.1 CKGB -FM Timmins, Ont. 94.5 CKWM -FM Kentville, N.S. 97.7 (Winnipeg), Man. 98.3 Que. 97.7 CKWS -FM Kingston. Ont. 96.3 Ont. 95.9 MR-FM Rimouski, Que. 101.5 CKGM -FM Montreal, CFPL -FM London, 93.5 CKX -F M Brandon, Man. 96.1 Vancouver, B.C. 103.5 CJCA -FM Edmonton, Alta. 99.5 CKLB -FM Oshawa, Ont. CFQMFM Ont. 99.5 CKY -FM Winnipeg, Man. 92.1 CFRC -FM Kingston, Ont. 91.9 CJCA -FM Sydney, N.S. 94.9 CKLC -FM Kingston,

Cuba and Mexico AM Stations by all Letters watts or better The broadcast stations listed below carry regular program material and transmit with 5000 power output during at least part of their broadcasting day Kc. Location C.L. Kc. Location C.L. Kc. Location C.L. Kc. Location C.L. 860 CMOX 1490 XEM 1990 CMBL X EII 1420 Cuba CMCF 910 CMBD 1520 CMBF 950 Holguin CM KJ 740 Ciudad Acuna, Coah. XERF 1570 Santa Clara CMHI 570 Ciudad Juarez, Chih. XELO 800 Havana CMCY 550 CMCK 980 1010 CMHQ 630 X EJ 970 CMW 590 CMBF XEF 1420 CMQ 640 CMCX 1040 1090 Ciudad Ohregon, Son. XEIC 810 CMCU 660 CM BS 1430 CMBQ 1160 XEOX CMBC 690 Mexico Coatzaeoalcos, Ver. ZEZS 1170 CMCA 730 CMK 1180 CMCI 1260 Acapulco, Gro. XEBB 600 Culiacan, Sin. XENW 710 CMCD 760 XEWS 1010 CMCH 790 CMBG 1360 Chetumal, Q.R. XEDB 960 CMBX 1990 Chihuahua, Chih. XEFI 580 Guadalajara, Jal. XEAV 580 CMCU 820 XEZZ 760 CMBZ 830 CMCQ 1420 XEBU 620 127 JANUARY, 1966

www.americanradiohistory.com Location C.L. Kt. Location C.L. Kc. Location C.L. Ke. Mexicali, B.C. XECL 990 XEWW 6165 Poza Rica. Ver. XEPR 1480 XED 1050 XEWW 9515 Puebla, Pue. XEPA 1370 XEKC 1590 XEQQ Dni CD Mexico City 9680 Reynosa, Tams. XERT 1170 XEPH 590 XEHH 11880 Rio Bravo, Tams. XEFD 590 XENK 620 XERR 15110 Sabinas, Coah. XEBX 610 XERPM 660 XEWW 15160 San Luis Potosi, XEN 690 XESC 15205 S.L.P. XEWA 540 O XEX 730 Monterrey, N.L XEWA 540 g XEBM 920 790 XERC XEAR 570 Tampico, Tama. XEFW 810 XELA 830 XEFB 630 Tijuana, B.C. XEUN 860 XETRA 690 Location C.L. Ka. XENL 860 XEMO 860 XEW 900 XET 990 XEQ 940 XEAU 1470 XEHL 1010 XEG 1050 Torreon, Coah. XEVK 1010 XEWK 1190 XEDF 970 XEMR 1140 XEBP XEOY 1000 1310 XEDK 1250 XEAW 1280 XETB 1350 Hermosillo, Son. XEBH 920 XEQR 1030 XEFZ 1370 Tuxpan, Nay. XEDP 1060 Nogales, XEUX 810 XEDM 1580 Son. XEHF 1370 Tuxpan, Ver. XETL 1390 Irapuato, Gto. XEWE 1420 XERCN 1110 Nuevo Laredo, Tams. XEK 960 Uruapan, Mich. XEUF Jalapa, XE1P 1150 610 Ver. XEJ1 1550 Oaxaca, Oax. XEOA 570 Veracruz, Ver. XEWB 760 La Piedad. Mich. XELC XEB 1220 980 Orizaba, Ver. XETQ 850 XEU 920 Leon, Gto. XELG 680 XEL 1260 XEBS Parras De La Fuente, XELL 1430 XEX 730 1410 XELZ 1440 Cosh. XEJQ 1440 Villahermosa, Tab. XEVA 790 XEXG 6065 XESM 1470 Patzcauro, Mich. XEXL 1370 XEVT 970 Matamoros, Tams. XEEW 1420 XERH 1500 Piedras Negras, Zamora Mich. XEZM 650 Merida, Tue. ZEQW 50 XEMC 1590 Cosh. XEWU 580 Zitacuaró, Mich. XELX 1460

World -Wide Short Wave Stations

he World -Wide short wave stations sec- White's Radio Log is presenting represents tion of White's Radio Log is, as its name a very realistic picture of the current status implies, a log, that lists stations actually of short -wave broadcasting, and is something monitored by listeners in the United States, which cannot be obtained elsewhere. Canada and overseas. It is not intended to Let Us Know. Listeners are invited to be a listing of all shortwave transmitters, li- submit their loggings to us for publication censed as such listings contain numerous in- in the Shortwave section of White's Radio active transmitters, and low powered stations Log. Be sure to include the following infor- which are rarely heard by DX'ers. The sta- mation for each station you report: approxi- tions listed here, therefore, are those most mate frequency, callsign and /or station name, often reported and consistently heard during city and country, and time heard in Eastern the past few months. Many have been Standard Time, 24 hour clock. Address your monitored by DX CENTRAL, the official reports to: DX CENTRAL, White's Radio RADIO-TV EXPERIMENTER monitoring post Log, C/o RADIO-TV EXPERIMENTER, 505 in New York City. Park Avenue, New York, N. Y. 10022, Because of the fact that this log represents U.S.A. actual monitoring reports rather than data Time To Listen. All times shown in taken from published program schedules re- White's Radio Log are in the 24 hour EST ceived from the stations, you may find that clock system. For example, 0800 is 8:00 frequencies (and operating times) given here AM EST, 1200 is noon EST, 1800 is 6 PM differ from official listings. This is because EST, and so on. For conversion to other foreign short -wave stations frequently oper- time zones, subtract 1 hour for CST (0800 ate several kilocycles away from their as- EST is 7 AM CST), 2 hours for MST, 3 signed (and announced) frequencies. In ad- hours for PST. dition, the schedules of these stations are The following abbreviations are used in often changed and the changes are not pub- our listings: BC- Broadcasting Company, lished in the schedules until many months Corporation, or System; E-Emissora; R- later. We feel that the type of log which Radio or Radiodiffusion; V -Voice or Voz.

Kc/s Call Name Location EST Kc/s Call Name Location EST 2182 marine - emerg.) various ship & shore 3366 R. Ghana Accra, Ghana 1700 2455 - Zambia BC Lusaka, Zambia 1100 3370 R. Universitie Tananarive, Mala- 2670 - (U.S.C.G.) various ship & shore gasy Rep. 1000 2686 - (U.S.C.G.) various ship & shore 3375 E. Offic. do Ango la Luanda, 1245 2716 - Angola (U.S.N.) various ship & shore 3380 Malawi BC Blantyre, Malawi 1315 3200 - - R. Club Nampula, 3390 HCOTI R. Zaracay Sto. Domingo Cds., Mozambique Mozamb. 2330 Ecu. 2100 3232 ORTF Brazzaville, - Congo 0015 3400 - Jamaica Govt. R. Kingston, Jamaica 1930 3240 E. - do Aero Clube Beira, Mozamb. 1030 3720 HCGB4 R. Nac. Espe¡o Esmeraldas, Ecu. 0700 3284 Fi¡i BC Suva Fiji Is. 0415 3824 ZNF4V Helehelele Maseru, 3285 HISD R. Sto. Domingo TV Sto. Domingo, Mabeoana Basutoland 2350 Dom. Rep. 1930 3845 HCGB4 R. Nac. Espejo Esmeraldas, Ecu. 2100 3345 R. Ghana Accra, Ghana 1700 3950 HCPZI R. Rumicha Tulcan,-Ecu. 0645 3346 Zambia BC Lusaka, Zambie 1100 3995 HCJA5 V. del R. Tarqui Cuenca, Ecu. 2045

128 RADIO -TV EXPERIMENTER

www.americanradiohistory.com Kc /s Call Name Location EST Kc /s Call Name Location EST 1600 R. Prague Prague, Czech. 0400 4735 E. Nigerian BC Enugu, Nigeria 6155 - - 2300 Osterreichischen R. Vienna, Austria 1800 YVKY E. Vargas La Guaira, Venez. OE121 4760 CKZN St. Johns, Nfld. 2100 R. Drago del Mar Fortaleza, Brazil 1955 6160 CKZN 4775 ZYH29 ORTF Paris, France 1500 YVLA V. de Carabobo Valencia, Venez. 1830 6175 - 4780 1900 Dar es Salaam, ORU R -TV Belge Brussels, Belg. 4785 R. Tanzania 2130 - Tanzania 1100 6180 HJCT Inst. Nac. R -TV Bogota, Colombia 2250 Kuala Lumpur, 6185 V. of the West Lisbon, Portugal 4790 - R. Malaysia - City 1445 Malaysia 0600 6190 - Vatican R. Vatican R. Bucharest Bucharest, 4795 R. Comercial Sa da Banderia, - - Angola 1330 Roumania 1330 Bujumbura, ORTF Brazzaville, Congo 0015 6195 - R. Burundi 1230 Burundi 1100 4797 R. Somali Hargesia, Somalia 2300 R. Peking Peking, China 1300 4805 R. Villa Rica Huancavelica, Peru 6210 - 1600 R. Budapest Budapest, Hungary 2200 4855 E. Nigerianerian BC Enugu, Nigeria 6235 - 0100 6236 R. Santa Isabel Sta. Isabel, 4820 R. Off' c. dod AngolaA I Luanda, Angola - 2300 Span. Guinea 1700 4886 CP77 R.Sararenda Camiri, Bolivia Silva Porto, Angola 1200 6270 R. Peking Peking, China 1530 4895 C R6 R0 R. Clube do Bic - (aeronautical)* Caribbean area 4904 Saquisili Saquisili, Ecu. 2100 6537 - HCVS6 V. de - Pyongyang, Zambia BC Lusaka, Zambia 1100 6540 - R. Pyongyang 4911 1500 Tarawa, Gil b. & N. Korea 4912 VTW2 R. Tarawa China 1300 Ellice I. 2300 6890 - R. Peking Peking, 7060 R. Peking Peking, China 1430 4913 V. de Pacifico San Lorenzo,Hond. 2200 - R. Peking Peking, China 1300 4916 R. Trebol Zaruma, Ecu. 2230 7080 - ORTF Brazzaville, Congo 0015 4920 VLM4 ABC Brisbane, Australia 0400 7105 - 1600 R. Warsaw Warsaw, Poland 1635 4926 R. Equatorial Bata, Sp. Guinea 7125 - VUD All India R. Delhi, India 144 4936 CR- 6RB R. Ecclesia Luanda Angola 0030 V. of Free China Taipei, Formosa 0630 4955 R. Clube Mozamb. Na pula 7130 BED7 Mozamb.m 2230 7160 R. Mogadiscio Mogadiscio, - Somalia 2200 4965 Zambia BC Lusaka, Zambia 1100 R. Kiev Kiev, USSR 1930 4972 R. Yaounde Yaounde, 7180 - Cameroon 1500 7195 R. Bucharest Bucharest, - Roumania 1330 4980 - R. UFAC Elisabethville, 2200 Congo 1100 7215 R. Budapest Budapest, Hungary - Rome, Italy 0955 R. del Sur La Paz Bolivia 0600 RAI 4985 CP75 Cruz Bucharest, R. Jaen Jaen, Peru 2100 7225 R. Bucharest 5005 OAX2S - Roumania 1330 R. Malaysia Lumpur, 5038 Kuala 0735 Malaysia 0800 7235 RAI Rome, Italy 1445 es Salaam, VUD All India R. Delhi, India 5050 - R. Tanzania Dar 0100 Tanzania 1345 E. Offic. de Angola Luanda, Angola 1100 7240 E. de Aero Clube Beira, Mozamb. 5055 R. Malaysia Singapore, 1430 Malaysia 0900 7250 Vatican R. Vatican City R. Peking Peking, China 1530 5075 HJGC Accion Popular Bogota, Colombia 2040 7260 R. Tirana Tirana, Albania 0100 5327 - (U.S. Army 7265 various 7305 R. Budapest Budapest, Engineers)* - 1930 N. Pacific area Roumania 5499 (aeronautical)* Peking, China 1430 5850 V. del Puno, Peru 1955 7315 R. Peking OAX7L Altiplano Peking. China 1300 5900 HCDFI V. del Ibarra, Ecu. 2100 7450 R. Peking Arequipa, Peru 0000 7580 R. Pyongyang Pyongyang, 5930 OAX6E R. Continental N. Korea 1500 5942 Trans World R. Bonaire, Neth. - Ant. 1430 7620 R. Peking Peking, China 1530 Peking, China 1530 5954 TI R. Casino Puerto Limon, C.R. 2200 9340 R. Peking R. Nac. Espana Madrid, Spain 2315 5955 TGNA R. Cultural Guatemala City, 9360 Guat. 0700 9457 R. Peking Peking, China 1300 Colombia 0600 9480 R. Peking Peking, China 1430 5960 HJCF V. de Bogota Bogota, 0400 Brazzaville, Congo 0015 9504 R. Prague Prague, Czech. 5970 - ORTF Bucharest, R. Canada Montreal, Que. 0230 9510 R. Bucharest CKNA Roumania 1330 RAI Rome, Italy 0735 5985 - Brussels, Belgium 1100 R. Peking Peking, China 1430 9515 ORU R -TV Belge Stockholm, Sweden 1530 9520 OZF5 V. Denmark Copenhagen, 5990 - R. Sweden 2100 Lima, Peru 1945 Denmark 5995 OAX4V R. America Cologne, 6010 ETLF R. V. of Gospel Addis Ababa, 9530 DMQ9 Deutsche Welle Ethiopia 1045 W. Germ. 1605 Angola 0500 RAI Rome, Italy 0700 9535 - R. Offic. de Angola Luanda BC Berne, Switz. 2047 6020 PC- J R. Nederland Hilversum, H ER4 Swiss Holland 0900 9540 R. Budapest Budapest, Hungary 1930 N.Z. 0100 6025 PCJ R. Nederland Hilversum, ZL2 R. New'Zealand Wellington, Holland 0200 R. Ulan Bator Ulan Bator, Mongolia 0920 CR6RZ E. Offic. de Angola Luanda, Angola 0100 V. of the West Lisbon, Port. 2250 9545 DMQ9 Deutsche Welle Cologne, W. Germany 1630 6030 BC lraqui Rep. Baghdad, Iraq 1430 Paris, France 0015 6035 R. Elisabethville Elisabethville, 9550 - ORTF Congo 0800 9560 R. Berlin Intl. Berlin, - 2000 XZK3 Burma BC Rangoon Burma 0930 E. Germany Bucharest, 6040 HJCB V. del Tolima (bague, Col. 0600 9570 - R. Bucharest 0630 6055 HER2 Swiss BC Berne, Switz. 1400 Roumania R. Nederland Hilversum, 6070 - R. Universitie Tananarive, Mala- 9590 PCJ gasy Rep. 0700 Holland 1500 Santiago Chile 1700 R. Sofia Sofia, Bulgaria 1500 9600 CE960 R. Pres. Balmaceda CFRX CFRX Toronto, Ont. 0215 9610 - R. Kiev Keiv, USSR 2330 Karachi, Pakistan 1445 6075 R. Sutatenza Bogota, Colombia 0600 9615 - R. Pakistan - Brussels, Belgium 1615 6080 ZL7 R. New Zealand Wellington, N.Z. 0100 ORU R -TV Belge Espana Madrid Spain 2025 6090 VLI6 ABC Sydney, Australia 0400 R. Nac. Stockholm, Sweden 0430 - R. Luxembourg Villa Louvigny, 9620 - R. Sweden Lux. 2315 9625 CKLO R. Canada Montreal, Que. 0230 Hilversum, LRYI R. Belgrano Buenos Aires, Arg. 2200 PCJ R. Nederland 0900 6095 BC Iraqui Rep. Baghdad, Iraq 1430 Holland - Rome, Italy R. Sweden Stockholm, Sweden 1645 9630 - RAI Vatican City 0 HJIQ V. del Llano Villavicencio, Col. 0600 9645 - Vatican R. Sinico R. Bamako, Mali 0200 6101 - R. Montevideo Montevideo, 9650 - Uruguay 1830 9655 - Swiss BC Berne, Switz. 2130 0000 9660 R. Kiev Kiev, USSR 1930 6115 R. Union Lima, Peru - Ababa, 6120 Swiss BC Berne, Switz. 2010 ETLF R. V. of Gospel Addis 1100 4VEH La. V. Evangelique Cap Hatien, Haiti 1945 Ethiopia Switz. 1400 6130 LKJ R. Norway Oslo, Norway 1555 9665 HEU3 Swiss BC Berne, Formosa 0630 6150 VLR6 ABC Melbourne, 9675 BED73 V. of Free China Taipei, Australia 0400 9680 - R. Kiev Kiev, USSR 1930

JANUARY, 1966 129

www.americanradiohistory.com Kc/s Call Name Location EST Ke /s Call Name Location EST

VLH9 ABC Melbourne, LLK R. Norway Oslo, Norway 1555 Australia 0400 11855 DZH8 Far East BC Manila, Philippines 0330 R. Moscow Moscow, USSR 2100 11865 VUD All India R. Delhi, India 1445 9690 VUD All India R. Delhi, India 1445 11880 - R. Iran Tehran, Iran 1530 LRA RAE Buenos Aires, R. Berlin Intl. Berlin, Argentina 2200 E. Germany 2000 9700 - R. Tirana Tirana, Albania 0100 R. Nepal Sanaa, Nepal 0100 9705 ETLF R. V. of Gospel Addis Ababa, XEHH R. Comerciales Mexico DF, Mex. 2300 Ethiopia 0930 11885 ORU R -TV Belge Brussels, Belgium 1615 9710 - RAI Rome, Italy 1700 11895 ORU R -TV Belge Brussels, Belgium 0715 Mauritius BC Forest Side, 11905 - ORTF Paris, France 0015 Maurit. 2300 RAI Rome, Italy 2000 Lebanest BC Beirut, Lebanon 2030 11925 DMQ11 Deutsche Welle Cologne, 9715 PCJ R. Nederland Hilversum, W. Germany 1615 Holland 0200 11930 R. Berlin Intl. Berlin, 9730 ETLF R. V. of Gospel Addis Ababa, E. Germany 2345 Ethiopia 0830 11940 R. Bucharest Bucharest, ORTF Brazzaville, Congo 0015 Roumania 0630 9745 TAU R -TV Belge Brussels, Belgium 1100 11950 PCJ R. Nederland Hilversum, R. Moscow Moscow, USSR 2200 Nederland 0200 9750 R. Pyongyang Pyongyang, PRL3 R. Min. Educ. Rio de Janeiro. N. Korea 1000 Brazil 2150 9755 - VTVN Saigon, 11970 ORTF Brazzaville, Congo 0600 S. Vietnam 0700 13750 R. Pyongyang Pyongyang, ORTF Paris, France 1800 N. Korea 1000 9760 - R. Kiev Kiev, USSR 1400 15077 R. Iran Tehran, Iran 1130 V. of Vietnam Hanoi 15105 HC- JB V. of Andes Quito, Ecuador 1530 N. Vietnam 0800 15110 XERR R. Comerciales Mexico DF, 9765 ETLF R. V. of Gospel Addis Ababa, Mexico 1600 Ethiopia 1130 R. New Zealand Wellington, N.Z. 0000 R. Sofia Sofia, Bulgaria 1900 15115 HCJB V. of Andes Quito, Ecuador 1800 9770 - R. Berlin Intl. Berlin, Vatican R. Vatican City 0745 E. Germany 2345 15125 V. Free Korea Seoul, S. Korea 2200 0E123 Osterreichischer R. Vienna, Austria 1700 15130 ORTF Paris, France 1330 9810 R. Kiev Kiev, USSR 1930 WIBS St. Georges, 9830 V. of Vietnam Hanoi, Grenada 1730 N. Vietnam 0800 15135 R. Japan Tokyo Japan 0145 9833 - R. Budapest Budapest, Hungary 930 15155 W- RUL R. N.Y. Worldwide New Mork, N.Y. 0700 9860 - R. Peking Peking, China 300 ZYB9 R. de Sao Paulo Sao Paulo, Brazil 0745 9865 - V. Indonesia Djakarta, 15160 TAU R. Ankara Ankara, Turkey 1330 Indonesia 500 15165 OZF7 V. Denmark Copenhagen, 9875 - R. Pyongyang Pyongyang, Denmark 1000 N. Korea 500 15170 BC Kingdom Amman, Jordan 1600 9900 - R. Peking Peking, China 430 Jordan 9915 VUD All India R. Delhi, India 445 15175 LLM R. Norway Oslo, Norway 1555 9920 - R. Peking Peking, China 430 15185 01X4 Finnish BC Helsinki Finland 0700 11630 - R. Peking Peking, China 300 15190 ORTF Brazzaville, Congo 1415 11672 - R. Pakistan Karachi, Pakistan 445 Damascus Calling Damascus, Syria 1730 11705 - R. Havana Havana, Cuba 0230 15200 R. Prague Prague, Czech. 1100 V. of America Tangier, Morocco 1100 15220 R. Australia Melbourne, I1710 KGEI V. of Friendship San Francisco, Australia 1715 Calif. 2138 15225 R -TV Alger Algiers, Algeria 1700 11715 R. Havana Havana, Cuba 0230 DMQI5 Deutsche Welle Cologne, YDF2 V. of Indonesia Djakarta, W. Germany 1230 Indonesia 1200 15240 R. Australia Melbourne, 11720 CHOL R. Canada Montreal Que. 1330 Australia 1715 11722 - R. Athens Athens, Greece 1530 R. Sweden Stockholm, Sweden 1245 11725 - ORTF Brazzaville, Congo 0015 15270 DMQI5 Deutsche Welle Cologne, R. Canada Montreal, Que. 1800 W. Germany 1615 11730 PCJ R. Nederland Hilversum, Sawt Al Islam D¡eddah Holland 1600 Saudi Arabia 0030 11740 R. Peking Peking China 1330 15300 DZH9 Far East BC Manila, Philippines 1655 VUD All India R. Delhi, India 1445 15310 WRUL R. N.Y. Worldwide New York, N.Y. 0945 11750 - R. Pyongyang Pyongyang, 15315 R. Bucharest Bucharest, N. Korea 1500 Roumania 0630 11755 - R. Japan Tokyo1 Japan 1130 15320 CKCS R. Canada Montreal Que. 1330 11760 - V. of Vietnam Hanoi, 15335 ORU R -TV Belge Brussels, Belgium 0500 N. Vietnam 0800 1S345 ORTF Paris France 0800 11765 CP39 R. Cruz del Sur La Paz, Bolivia 0600 15370 R. Tupi Rio rie Janeiro, Sawt Al Islam Djedda h, Brazil 0620 Saudi Arabia 0030 15385 R. Bucharest Bucharest, 11780 LRY2 R. Belgrano Buenos Aires, Roumania 1330 Argentina 2200 15410 ETLF R. V. Gospel Addis Ababa, ZL3 R. New Zealand Wellington, N.Z. 1200 Ethiopia 0815 11785 ETLF R. V. of Gospel Addis Ababa, 15425 PCJ R. Nederland Hilversum, Ethiopia 1330 Holland 0900 11790 - R. Kiev Kiev, USSR 1930 VLX15 ABC Perth, Australia 0400 WRUL R. N.Y. Worldwide New York, N.Y. 0700 R. Nac. Espana Madrid, Spain 0620 11795 YDF3 V. of Indonesia Djakarta, 5440 WRUL R. N.Y. Worldwide New York N.Y. 1030 Indonesia 0600 5500 R. Havana Havana, Luba 1615 WINB WINB Red Lion, Pa. 2100 7720 ORTF Brazzaville, Congo 0800 11800 R. Nac. Espana Las Palmas, 7745 W- RUL R. N.Y. Worldwide New York, N.Y. 1300 Canary Is. 2115 7750 ORU R -TV Belge Brussels, Belgium 0715 11810 R. Bucharest Bucharest, 7810 Far East BC Manila, Philippines 1655 Roumania 0630 7820 CK- NC R. Canada Montreal, Que. 1330 11820 WINB WINB Red Lion Pa. 1500 7825 LLN R. Norway Trans World R. Bonaire, Meth. Ant. 0100 Oslo, Norway 1555 7850 V. R-TV Ivorienne Abidjan HCJB of Andes Quito, Ecuador 1600 Ivory Coast 1300 7860 ORU R -TV Belge Brussels, Belgium 0500 11825 BED69 V. of Free China Taipei, Formosa 0630 7875 R. Japan Tokyo, Japan 0145 11835 4VEH La V. Evangelique Cap Hatien, Haiti 1720 7880 W- RUL R. N.Y. Worldwide New York, N.Y. 0745 11845 ETLF R. V. of Gospel Addis Ababa, 7890 HCJB V. of Andes Quito, Ecuador 1800 Ethiopia 1200 21500 ORTF Brazzaville, Congo 0800 ORTF Paris, France 1330 21510 O- RU R -TV Belge Brussels, Belgium 0500 11850 - ORTF Paris, France 0800 21580 ORTF Paris, France 0800

130 RADIO -TV EXPERIMENTER

www.americanradiohistory.com the circuit to operate, couple a grid-dip me- to coil Build the Aero- Bander ter set to operate as a wave meter, L4. If you don't get a reading by tuning from page 50 Continued over the oscillator frequency, move the tap on L4 up, a turn at a time until you do. This With Form a safety loop out indicates that the circuit is working. way into the plug. to con- tip of the antenna. some transistors it may be necessary of the turn or two and Tuning Up. Set the radio to nect the tap on L4 to within a Testing proper oper- be used with the converter to a clear spot at of the top of the coil to obtain about 1600 kc. Place the plastic window on ation. Although the Aero- the converter as near as possible to the an- A Modification. to cover the aeronau- coil in the radio. Turn on both the Bander was designed tenna modified to receive radio and the converter. Tune coil L3 in tical bands only, it can be band. This is easily ac- out slowly, at some point a rushing noise the two-meter ham and one turn from coils should be heard from the radio. Tune L3 complished by removing maximum noise. Set tuning control ca- L2 and L4. for you have the converter pacitor C7, to maximum capacity. Couple Operation. When you will be able to tune the output of a signal generator, or a grid - working properly, to the antenna. in any 12 mc. segment of the aeronautical dip meter, set to 115 mc. to receive control, capacitor band. The author chose to set his Tune the range adjustment of the band, the output of the signal generator the 115 mc. to 127 mc. portion C6, until local stations were from the radio. The converter will where the most interesting is heard the antenna tuning con- now tune from 115 mc. to 127 mc. The heard. In operation should be peaked for maxi- range adjustment control, capacitor C6 can trol, capacitor C2, or in the absence of a signal for be set so that tuning control, capacitor C7, mum signal, As this control is quite will tune any 12 mc. band from 95 mc. to maximum noise. as you tune. The weak- mc. sharp, keep it peaked 135 received, the more critical If difficulty is experienced obtaining the er the station being Keep in mind that the rushing noise described, which indicates that the tuning will be. was not meant for long range the oscillator is working, recheck the wiring, Aero- Bander or at airports. and the polarity of B 1. If you still can't get use, but for use nearby

meter with S2 in the RF position and S3 on had Build the Versameter METER. Next, although it obviously to work, we put S2 in the M +M- position from page 97 Continued and had a usable 0-1 milliammeter across J2 and J3 and divorced from the rest of the a pair of we completed all of the wiring, added Versameter. Last, we plugged session monitored the the external spit and polish with Ami -Cal dry phones into J1 and easily 3 -foot an- titles and dressed up the interior by transmitted voice using our little transfer on METER; cabling and lacing the wiring. Like the fabled tenna with S2 on RF and S3 local hams with pudding, the final test was in the eating so we even heard a couple of we put the little Versameter through its paces. fair volume! Both Gene and I like As a wavemeter, fine; we merely threw S2 Mass Production. well that we're going to to RF and S3 to LIGHT and checked all the Versameter so each have one. bands using the light bulb indicator with a build another so we can just about any parts type 49 bulb (2.0 volts, .06 amps). Good Build one yourself-use There is nothing indication ,everywhere using my Ranger II you have lying around. stick to the drawing, transmitter as an exciter. Next we flipped critical about it; just to suit yourself and label S3 to METER and ran through all the bands arrange the parts bit of care in getting again; good meter indications all around. them properly. Use a and taps just right; you Placing a short antenna (about 3 feet of hook- your coil winding antenna post, we put the may have to prune or pad a bit; or maybe up wire) on the without on the air and got good meter like us, you'll come out all right transmitter Versameter just on all bands in a radius of about either. You'll find the little readings versatile. And feet from the antenna and the meter what its name implies -truly 35 gadgets you reading fell off properly as transmitter power it's one of the handiest little was reduced. We had a good field strength could have round the shack. 131 JANUARY, 1966

www.americanradiohistory.com LITERA TURI LIBRARY Numbers in heavy type indicate advertisers in this issue. Consult their ads for additional information. ELECTRONIC PARTS 25. Unusual surplus and new equip- TAPE RECORDERS AND TAPE ment /parts are priced "way down" in 1. This catalog is so widely used as a 32 -page flyer from Edlie Electronics. 31. "All the Facts" about Concord a reference book, that it's regarded Get one. Electronics Corporation tape record- as a standard by people in the elec- ers are yours for the asking in a free tronics industry. Don't you have the 75. Transistors Unlimited has a booklet. Portable battery operated latest Allied Radio catalog? sur- brand new catalog listing hundreds to four -track, fully transistorized The of parts at exceptionally low prices. stereos cover every recording need. prising thing is that it's free! Don't miss these bargains! 32. "The Care and Feeding of Tape 2. The new 516 -page 1965 edition of Recorders" is the title of a booklet Lafayette Radio's multi -colored cata- HI -FI /AUDIO that Sarkes- Tarzian will send you. log is a perfect buyer's guide for hi- It's`16 -pages jam -packed with info for fi'ers, experimenters, kit builders, 13. Here's a beautifully presented the home recording enthusiast. In- CB'ers and hams. Get your free copy, brochure from Altec Lansing Corp. cludes a valuable table of recording today! Studio -type mikes, two-way speaker times for various tapes. components and other hi -fi products. 3. Progressive "Edu- Kits" Inc. now 33. Become the first to learn about has available their new 1965 catalog 15. A name well -known in audio Norelco's complete Carry- Corder 150 featuring hi-fi, CB, Amateur, test circles is Acoustic Research. Here's portable tape recorder outfit. Four - equipment in kit and wired form. its booklet on the famous AR speak- color booklet describes this new car- Also lists books, parts, tools, etc. ers and the new AR turntable. tridge- tape unit. 4. We'll exert our influence to get 16. Garrard has prepared a 32-page 34. The 1964 line of Sony tape re- you on the Olson mailing list. This booklet on its full line of automatic corders, microphones and accessories catalog comes out regularly with lots turntables including the Lab 80, the is illustrated in a new 16-page full of new and surplus items. If you find first automatic transcription turntable. color booklet just released by Super- your name hidden in the pages, you Accessories are detailed too. scope, Inc., exclusive U.S. distributor. win $5 in free merchandise! 17. Two brand new full -color book- 35. If you are a serious tape audio- 5. Unusual scientific, optical and lets are being offered by Electra- phile, you will be interested in the mathematical values. That's what Ed- Voice, Inc. that every audiophile new Viking of Minneapolis line -they mund Scientific has. War surplus should read. They are: "Guide to carry both reel and cartridge re- equipment as well as many other Outdoor High Fidelity" and "Guide corders you should know about. bard -to-get items are included in this to Compact Loudspeaker Systems." new 148 -page catalog. 91. A compresensive analysis of Uher tape recorders and a complete 19. Empire Scientific's new 8 -page, 6. Bargains galore, that's what's in full color catalog is now available to listing of accessories are all in their store! Poly-Paks Co. will send you our readers. Don't miss the sparkling up- to-date 16 -page brochure. their latest eight -page flyer listing the decorating- with-sound ideas. Just cir- latest in merchandise available, in- cle HI -FI ACCESSORIES cluding a giant special sale. #19. $1 76. A new voice -activated tape re- 22. A wide variety of loudspeakers corder switch is now available from 7. Whether you buy surplus or new, and enclosures from Utah Electronics you will be interested in Fair Radio Kinematix. Send for information on lists sizes shapes and prices. All this and other exciting products. Sales Co.'s latest catalog-chuck full types are covered in this heavily illus- of buys for every experimenter. trated brochure. 39. A 12 -page catalog describing the audio accessories that make hi-fi liv- 8. Want a colorful catalog of 24. Here's a complete catalog of ing a bit easier is yours from Switch - goodies? John Meshna, Jr. has one high- styled speaker enclosures and craft, Inc. The cables, mike mixers, that covers everything from assemblies loudspeaker components. University and junctions are essentials! to zener diodes. Listed are govern- is one of the pioneers in the field that ment surplus radio, radar, parts, etc. keeps things up to date. All at unbelievable prices. KITS 26. When a manufacturer of high- 41. Here's a firm that makes every- 10. Burstein -Applebee offers a new quality high fidelity equipment pro- thing from TV kits to a complete line giant catalog containing 100's of big duces a line of kits, you can just bet of test equipment. Conar would like pages crammed with savings includ- that they're going to be of the same to send you their latest catalog -just ing hundreds of bargains on hi -fi kits, high quality! H. H. Scott, Inc., has ask for it. power tools, tubes, and parts. a catalog showing you the full- color, behind -the -panel story. 42. Here's a colorful 108 -page cata- 11. Now available from EDI (Elec- log containing a wide assortment of tronic Distributors, Inc.) a catalog 27. An assortment of high fidelity electronic kits. You'll find something containing hundreds of electronic components and cabinets are described for any interest, any budget. And items. EDI will be happy to place you in the Sherwood brochure. The cab- Heath Co. will happily send you a on their mailing list. inets can almost be designed to your copy. requirements, as they use modules. 12. VHF listeners will want the 44. A new short-form catalog (pock- latest catalog from Kuhn Electronics. 28. Very pretty, very efficient, that's et size) is yours for the asking from All types and forms of complete re- the word for the new Betacom inter- EICO. Includes hi -fi, test gear, CB ceivers and converters. com. It's ideal for stores, offices, or rigs and amateur equipment -many just for use in the home, where it kits are solid -state projects. 23. No electronics bargain hunter doubles as a baby -sitter. should be caught without the latest AMATEUR RADIO copy of Radio Shack's catalog. Some 30. Tone-arms, cartridges, hi -fi, and equipment and kit offers are so low, stereo preamps and replacement tape 45. Catering to hams for 29 years, they look like mis- prints. Buying is heads and conversions are listed in World Radio Laboratories has a new believing. a complete Shure Bros. catalog. FREE 1965 catalog which includes

132 RADIO -TV EXPERIMENTER

www.americanradiohistory.com 66. Try instant lettering to mark all products deserving space in any SCHOOLS AND EDUCATIONAL control panels and component parts. chock- Datak's booklets and sample show full of electronic rtbargains care also this easy dry transfer method. available. 56. Bailey Institute of Technology offers courses in electronics, basic 117 -volts, 60 -cycle re- 64. If you can use 46. A long -time builder of ham electricity and drafting as well as power where no power is available, equipment, Halllcrafters will send you frigeration. More information in their the Terado Corp. Tray- Electric 50-160 lots of info on the ham, CB and com- informative pamphlet. is for you. Specifications are for the mercial radio -equipment. asking. 57. National Radio Institute, a pio- training, CB- BUSINESS RADIO neer in home -study technical 67. "Get the most . measurement has a new book describing your op- value per dollar," says Electronics SHORT -WAVE RADIO portunities in all branches of elec- Corp. Send for their Unique trairjng methods Measurements 48. Hy-Gain's new 16 -page CB an- tronics. catalog and find out how! full of useful make learning as close to being fun tenna catalog is packed can make it. information and product as any school 92. How about installing a transis- know Get torized electronic ignition system in every CB'er should Electronics Institute of- a copy. 36. Coyne current fers home /resident training in elec- their giving you refrig- willill mail brochure 49. Want to see the latest in com- tricity, radio -TV, electronics, specifications, schematics. munication receivers? National Ra- eration and air conditioning. dio Co. puts out a line of mighty fine will tell you all 59. For a complete rundown on cur- ones and their catalog full de- about them. riculum, lesson outlines, and tails from a leading electronic school, TELEVISION you can from ask for this brochure from the Indiana 50. Are you getting all now has a 25" rec- Citizens Band radio equipment? Home Study Institute. 70. Heath Co. your a tangular -tube color TV kit in addi- Amphenol Cadre Industries has 21" lots of the ques- 60. Facts on accredited curriculum tion to their highly successful booklet that answers from Both sets can be installed in tions you may have. in E. E. Technology is available model. Central Technical Institute plus a 64- a wall or cabinet: both are money- practical musts! 52. If you're a bug on CB communi- page catalog on modern saving cations or like to listen in on VHF electronics. bands, then '73. Attention, TV servicemen! Barry police, fire, emergency "Green Sheet" lists many Regency Electronics would like to 61. ICS (International Correspond- Electronics specs on their Schools) offers 236 courses in- TV tube, parts, and equipment buys send you their latest ence while examining. Good values, receivers. cluding many in the fields of radio, worth TV, and electronics. Send for free sensible prices. 54. A catalog for CB'ers, hams and booklet "It's Your Future." outstanding val- 72. Get your 1964 catalog of Cisin's experimenters, with and hi -fi service books. Terrific buys on Grove Electron- 74. How to get an F.C.C. license, TV, radio, ues. the complete Bonus -TV tube substitution guide ics' antennas, mikes and accessories. plus a description of chart is yours for electronic courses offered by Cleve- and trouble -chaser 55. Interested in CB or business- land Institute of Electronics are in the asking. band radio? Then you will be inter- their free catalog. Circle #74. an- catalogs and literature 29. Install your own TV or FM ested in the tenna! Jefferson- King's exclusive free Mosley Electronics has to offer. 94. Intercontinental Electronics installation, great courses: booklet reveals secrets of School offers three how to get TV -FM transis your meat, & electronics; basic elec- orientation; 90. If two-way radio stereo radio mission data. send for Pearce -Simpson's new book- tricity; transistor. They are all de- let! Its 18 pages cover equipment scribed in Inesco's 1965, 16 -page selection, license application, prin- booklet. ciples of two-way communications, reception, and installation. TOOLS new 23- channel line of 93. Heath Co. has a ELECTRONIC PRODUCTS 78. Learn about Xcelite's all- transistor 5 -watt CB rig at the pliers and snips, specialized for radio, lowest cost on the market, plus a full transis- TV and electronic work. Xcelite's See their new 10- 62. Information on a new lab many advantages line of CB gear. is yours for the asking from hand tools offer band AM /FM /Shortwave portable tor kit worth looking into. Bulletins N464 radios. #93 Arkay International. Educational kit and line of shortwave projects. and N664. on the coupon. makes 20

Dept. LL -764 Radio -TV Experimenter, I am o subscriber 505 Park Avenue, New York, N. Y. 10022 whose numbers I lndiccte total number Please arrange to have the literature I am en- of booklets requested have encircled sent to me as soon as possible. handling charges. closing 25C (no stamps) to cover 8 10 11 12 13 14 1 2 3 4 5 6 7 22 23 24 25 26 27 28 Be 15 16 17 18 19 21 34 35 36 37 38 39 40 41 Sure To 29 30 31 32 33 52 54 55 56 Enclose 42 44 45 46 47 48 49 50 51 67 68 69 25¢ 57 58 59 60 61 62 63 64 65 66 94 70 72 73 74 75 76 77 78 90 91 92 93

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133 JANUARY, 1966

www.americanradiohistory.com Lab Check -Knight leads about the input lead. The Knight pic- -Kit torials KG allow a power transformer lead to be -625 placed directly next to the input lead, this Continued from page 80 caused a zeroing problem on the 1.5 VAC range. Make certain the input lead is in the tion and range switches the electronics is on clear, push all wires away from the input a subassembly, using straight -line connec- and you'll get optimum stability on all tions. That is, the components are wired ranges. from point -to -point in a grid arrangement; On the Test Bench. As far as total per- lack of criss -crossed wiring virtually elimi- formance goes the KG -625 is very good. Ac- nates the possibility of wiring errors. curacy on all functions was well within the Calibrating the kit couldn't be easier since specs of i-3% DC, ±5% AC. Decading the calibration controls are clearly marked accuracy was very good; as example, with an and are accessible through the cabinet. But input voltage driving to 15 volts full scale, two corrections must be noted: while Knight the reading was exactly 15 volts when the recommends "burning in" the tubes for 8 range switch was set to 50 volts. hours before calibration, we found the zero - Ohmmeter accuracy and decading is good, set stability after 8 hours was almost non- our precision test resistor indicated well with- existent. Switching from function -to -func- in specifications for the low, middle and high tion and range -to -range caused the meter to scale tests. drift. We suggest a more typical 60 hour Considering its good performance and burn -in which results in rock -steady stability. conveniences, the KG -625 kit at $36.95 This is not a kit fault, but rather an inherent ($53.95 factory wired) represents a good vacuum tube characteristic that the best lab- buy for both the hobbyist and service shop. oratory meters overcome by burning in in- The KG -625 is at the top of its price class. strument tubes for some time. After the 60 To get better performance, only laboratory hour burn-in, we could switch to any range instruments at many times the KG -625's or function, with the exception of .5 volts price are available and then they can only DC, and the needle wouldn't budge off the hope to duplicate Knight -kit's usefulness on zero -set. The .5 VDC range drifts one or two your test bench. For more information write scale divisions but this is normal for any .5 to Allied Radio, Dept. JR, 100 N. Western VDC range on any service grade VTVM. Avenue, Chicago, Ill. 60680 for complete Another difficulty was the placement of specifications.

Lab Check -Lafayette And More. The power supply, which operates off either 117 VAC or 12 VDC has HB -600 a "floating" primary, that is, there is no Continued from page 82 connection to the chassis. The transceiver can be used in vehicles with either positive or negative battery grounding. Positive or are detuning the receiver. If the received negative connection is made automatically station is really off -frequency, using the Delta -there is no special switching, power plug tuning will increase the speaker volume since rewiring or power plug orientation to be the station is now properly tuned. remembered. You simply connect the red Setting the Soup Out. The transmitter power supply lead to the positive battery delivers slightly under three watts output terminal (or tie point) and the black lead into a 50 -ohm antenna system. Since the to the negative battery terminal. Both power output meter is calibrated for 50 -ohm loads, supply leads are fused, so it makes no dif- an excessively high output reading-above ference which battery terminal is grounded- 3 watts -is generally indicative of a high fuse protection is supplied 100% of the SWR. time. The modulation is sharply limited to 100 In our opinion, while the HB -600 is out- percent, even if you shout. A so- called standing in terms of selectivity, sensitivity Range -Boost (a speech compressor) is and clean audio, just the noise silencer alone provided. When the Range -Boost is switched - justifies the $219.95 price tag. For more in the lower voice levels are boosted approx- information on the HB -600 write to Lafay- imately 6 db; the effect at the receiving sta- ette Radio, Dept. KCP, 111 Jericho Turn- tion is a sharp increase in "talk power." pike, Syosset, N. Y. 11791.

134 RADIO -TV EXPERIMENTER

www.americanradiohistory.com Classified Ads only 55C per word, each insertion, minimum 10 words, payable in advance. To be included in the next available issue of RADIO -TV EXPERIMENTER, copy must be in our New York Office by December 10th. Address orders to C. D. Wilson, Manager, Classified Advertising, RADIO-TV EXPERIMENTER, 505 Park Ave., New York, N. Y. 10022. PLEASE ADDITIONAL INCOME CAMPERS, CAMPING EQUIPMENT GIFTS THAT & TENTS Unusual, Success- GIVE the best reading in the Mechani- FREE Report: "609 cal Field -give Science & Mechanics! The ful Businesses." Box 51 -SMC, Des Plaines, OUTDOORSMEN: Now enjoy dependable Science, Light /Heat used by world - pros tell all about Automobiles, Illinois. Tilley portable Electronics. Anotuer plus: the large new Get our famous explorers, sportsmen for over 100 for year's sub- MAKE your classified ad pay! years. Operating cost only 54 for 12 hours. "FiXiT" Section. $4.00 booklet, "How to Write a Classified Ad rea- scription. 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Write Miss door, 6 cylinder, automatic transmission. Ann Hastings, Patent Searcher, P. O. Box OFFICE EQUIPMENT & SUPPLIES heaters. Choice of color. 1964 Cars $595.00. 176, Washington 4, D. C. Guaranteed motor, transmission, rear end. Nationwide delivery. Free illustrated cata- IMMEDIATE cash, for Patent Applica- OFFSET, Letterpresses, Varitypers, tions, free Patent Searches. Write for Typewriters, Mimeograph, M u l t i g r a p h log, details. Write: Dept. FN -1, Consoli- King, dated Auto Wholesalers, 120 East 56th details. Universal Patents, 184 -C, Marion, Machines, Bargains. DixieGraph, Street, New York 10022. Ohio. North Carolina.

JANUARY, 1966 135

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ADVERTISING INDEX Advertiser Page for fun Allied Radio Corp. 105, 106, 107 American Institute of Engineering & Technology 40 Amphenol -Borg 10 in the Burstein -Applebee 10 Christy Trades School 17 Clain, H. G. 12 Sun It's family fun when the sport is Cleveland Institute of Electronics 9 boating. And BOATCRAFT, Color -Sery Co. 33 the lively and timely mag- Goner 23 azine, is the guide on what's new afloat. There's DeVry Technical Institute II Eastman Kodak Company 13 boat -building; how to entertain on board; vacation ED Electronics 31 Edmund Scientific Second Cover cruises; all sorts of interesting nautical reading. Fair Radio Sales 40 Heath Campany 35, 96, 97, 98, 99 There's what to do and where to go. Grove Electronics 29 Indiana Home Study 16 It's all in BOATCRAFT. The brand -new December - International Correspondence Schools 3 4, 5 Lafayette Radio Electronics Corp. 71, 72 January issue is on sale at your newsstand now. $1. McGee Radio Co. 29 Mercury Electronics Corp. 26 Or, Subscribe today! Meshna, John 40 Milwaukee School of Engineering 25 Multicore Sales 12 BOATCRAFT /505 Park Avenue, New York, N. Y. 10022 National Radio Institute Third Cover National Radio Institute Fourth Cover Let's get started! Begin my subscription to BOATCRAFT Olson Electronics 20 Poly-Paks 29 with the next issue. I have enclosed $5.00 1 for year; Progressive Edu -Kits, Inc. 15 $9.00 for 2 years; $13 for 3 years. (Foreign: add RCA Institutes, Inc. 138, 139, 140 Radio 75ç.) Shack 8 7 RTV -764 Scott, H. H. 8 Semitronics 21 Sonatone Corp. 20 Name Switchcraft 16 (please print) Tab Electronics Si Telex Corp. 19 Address Webber Labs 31 Western Radio 16, 33 Xcelite 14 City State Zip

136 RADIO -TV EXPERIMENTER

www.americanradiohistory.com the first time and then note the meter read- Scott LK -60 Amplifier ing. Henceforth, whenever you switch to vol- Continued from page 90 fhe remote speakers you crank up the ume control- regardless of the signal's source -to the correct meter reading. It manual has short- comings. Four lines in the saves a lot of running back and forth. manual (their page 50) tell you which circuit The second unusual feature is a 15 watt is the left channel and right channel. Since light bulb supplied with the kit. When the there was a defect in one of the pre -wired kit is assembled, and before power is first boards we had occasion to utilize the manual applied, the light bulb is switch- connected to the fullest extent in order to locate the in series with the power transformer. Should fault. In our opinion the lack of precise there be any short circuits which could cause service hints turned what should have been rather expensive damage to the output tran- a fifteen minute job into two hours. We sus- sistors, power supply rectifier or the power pect the service section was written by an transformer, the light bulb will take up the engineer rather than a service technician. full load, dropping the voltage to the transformer to a safe value. Since the bulb takes up the full load it glows to almost full bril- LK -60 Specifications (Measured) liance if there is a short. If the amplifier is output per channel -30 watts steady - Power if is no short or wir- state, 40 watts peak wired correctly or there Distortion at 30 watts -less than 1% ing error which would cause expensive dam- Tape head sensitivity -2.1 mv. age the bulb will flash to full brilliance and Magnetic sensitivity -3, 5, 9 mv. then drop to a steady dull glow. While the High level inputs -.5 v. it's com- Noise level -55 db lamp is strictly a protective device Boost and cut at 30 cycles -10.5 db forting to know that even if you've never Boost and cut at 10 kc. -9.8 db wired a kit before you can tackle the LK -60 without worrying about blowing $50 worth Big Extras. Two features not normally of parts on a wiring error. common to amplifiers or kits were particu- The Scott LK -60 tagged with a $189.95 larly attractive. price will prove to be a pace setter in the A The first is a relative power output meter. solid state component market place. com- is Since both the bias and balance of the out- panion all- transistor tuner, the LT -112, put transistors are user adjusted some means currently available. For complete specifi- had to be provided so the adjustments could cations on both units write to H. H. Scott, be made by the average audiophile, some- Inc., 111 Powdermill Road, Maynard, Mass. one who does not find service instruments 01754. necessary for the enjoyment of music. So r1n1nnmmmn1111m111111n1nnun11/1n/1/111/1/1mn11111nmmn1nn111nnn1111/1n/1/1/11111111, n1n mnnlnimini11q/111n11111111nn11mmnnmg Scott included a built -in panel meter with the appropriate switching so any builder could easily factory align the LK -60 (the alignment is so simple there's no need to go into it) . Since the meter was already on the panel Scott provided a selector switch position for relative power output. While the meter calibration of 0-10 does not represent any specific power level, we found that a full scale reading of 10 represented 30 watts output, while 40 watts was represented when the needle just about "pinned." While the power output meter is not necessarily useful when the speakers are in the same room as the amplifier, it became almost in- dispensable when using remote speakers. For example, suppose the remote speakers are located in another room, and they have a different efficiency than the main speakers thought With You and your big trap! They -where to set the volume control? you were the 'Voice -of- America'!"

,,,,111nn,:1111nmm 1nn1 /1n 1111111n1111111111111111nn11 11111111111111nn111 the LK -60 you determine the proper volume nn1111111111,n1nn111n1111n1111, 1111111111111 1111,11,

JANUARY, 1966 137

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