Experimenter Short -Wave Listings!

Home , KCWA, KFKA, Tubi, WBLE, WCGH, WDDE

CES Trenscwiver DX's the World! WHITE'S RA RADIOR 010-T LOG U AM -FM STATIONS WORLD -WIDE EXPERIMENTER SHORT -WAVE LISTINGS!

IS THERE p SOViET

\ 3-BOMB III ORB1T?

PROJECTS THAT LET YOU - Multiply with Neon Bulbs Control Photofloods 100% Dial Any Resistance

TEST REPORTS Hallicrafters CB -15 * 4- TRANSISTOR AM /Part -I5 Walkie- Talkie AUDIO COMPRESSOR Lafayette Model HA -520 Dual -Band VHF Receiver GIVES YOUR Jensen Model CC -1 MODULATION Headset Control Center A BOOST Be creative -and thrifty too! Save up to 50% with EICO Kits and Wired.

EICO supports your sense of people, ages 8 to 89, have built EICO achievement with no-compromise kits. If you love to create, EICO is engineering, finest parts, dramatic for you. And if you want the best esthetics, simple step -by -step buys in ready -to -use factory - instructions and large pictorial assembled equipment, again EICO diagrams. You need no technical is for you. Judge critically for Elcol background -just pliers, screw- yourself. Send for your free catalog. driver, soldering iron. Three million See EICO at your local dealer. KITS & WIRED

TEST EQUIPMENT C11lZENS BAND! HAM RADIO STEREO /HI -FI

New Model 3566 All Solid -State Automatic FM New Model 779 Sentinel 23 CB Transceiver. 23 MPX Stereo Tuner 'Amplifier. "Very satisfactory . bannel frequenry synthesizer provides crystal product, very attractive price" -Audio Magazine. nnVnlled transmit and receive on all 23 chan- No tubes. not even nuvistors. Delivers 112 watts nr-ls No additional crystals to buy ever' Features IHF total to 4 ohms, 75 watts to 8 ohms. Com- include dual conversion, illuminated S RF meter, pletely pre.wired and prealigned RF, IF and Model 232 Peak.ln Peak YTVM. A mud for color adjustable squelch and noise limiter. TVI filter, MPS circuitry, plus plug-in transistor sockets. ei BAW TV and industrial use. 7 nen.k,p 117VAC and 12VDC transistorized dual power $219.95 kit (optional walnut cabinet $14.951, on all 4 Ignitions With Uni Probe. $29.95 kit, supply Also selves as 3.5 watt P.A. system. $325.00 wired including walnut cabinet. UL $49.95 wired. $169.95 wired. approved.

New Model 712 Sentinel 12 Dual Conversion 5. v.att CB Transceiver. Permits 12- channel crystal - Model 5T70 70-Watt Integrated Stereo Amplifier, controlled transmit and receive, plus 23- channel Best buy of highest ranked stereo amplifiers Model 460 Wideband Direct Cnupled 5° 0'.,,t. tunable receive. Incorporates adjustable squelch according to independent testing. $99.95 kit, Inscope. DC.45mc for color and BOW TV service A noise limiter, & switches for 3.5 watt P.A. $149.95 wired. ST40 40 Walt Integrated Stereo and lab use. Push -pull OC vertical amp.. nal n spotting. & Part 15 operation Transistorized Amplifier. $79.95 kit, $129.95 wired. ST97 Match- octal. input. Automatic sync limiter and am0. r.I?VDC A Il7VAC dual power supply. $99.95 ing FM MPX Stereo Tuner, $09.95 kit; $139.95 599.95 kit, $129.50 wired. wired only. wired. FREE 1966 CATALOG EICO Electronic Instrument Co., Inc. 131.01 39th Ave.. Flushing, N.Y. 11352 10'r\F. -0 Send me FREE catalog describing the full EICO line of 200 best buys, and name of nearest dealer. I'm interested in.

ttß test equipment [ I ham radio

E stereo hi -fi [ I Citizens Band radio a New Model 753 lie one and only SSB AM CW Name 1i, Nand r,., ' - vi Nit. "The best ham trans- . wer buy for 1966" -Radio TV Experimenter Address Magazine 200 watts PEP on 80. 40 and 70 Model 324 Rf Signal Generator. IrrOkr to 44tinir iet.i Receiver offset tuning, built-in VOX. high City range For IFRF alignment and si; rial tram¡ I Ir vnl dynamic ALC. Unequaled performance. lea - TV, FM. AM CB and molli^ P -it m and i rt. and acii',eanee. Sensationally priced at modulation $32.95 kit, 544.95 wired. $109.95 kit. $299.95 wired. State Zip

1945.1965: TWENTY YEARS OF LEADERSHIP IN CREATIVE ELECTRONICS

A r------INTERNATIONAL CORRESPONDENCE SCHOOLS I Dept. 1976 Scranton, Penna. 18515. (In Hav,aii: P.O. Box 418, Honolulu. In Canada: I.C.S. Canadian, Ltd. In other countries: I.C.S. World, Ltd.)

Yes! Send me your three -booklet Career Kit, including the new "ElectronlCS" Career Guide. I understand these booklets are absolutely FREE.

Name Age__ Address

City State Zip Code Occupation Employed by Working Hours A.M. to P.M.

I'm a member of U. S. Armed Forces. Send me facts about special low rates. 1 L------Convenient payment plan. Special training programs for industry Cut this out.

Cut yourself in on 16 extras:

1 More electronics courses (22) than 9 I.C.S. mails progress reports to your employer, any other school. This lets you choose if you request. one that's just right for you. 10 Programed courses (optional) for quick, 2 Or, to meet special needs, I.C.S. will easy study. tailor-make a course for you, personally. 1 1 I.C.S. constantly reviews all texts to assure up- to- dateness. 3 You may pay for your course month by month, as your study progresses. 12 Complete courses in Telephony available only from I.C.S. - 4 Famous Heathkit* equipment (only I.C.S. has it). 13 Greater experience in correspondence education 5 Complete library of texts included than any other school in price of course. (75 years -over 71/2 million students). One out of every 14 top executives in America Your money back if you fail to pass test for 14 has at one time studied with I.C.S. 6 1st or 2nd Class Radiotelephone license after studying the appropriate I.C.S. All courses accredited by course. 15 National Home Study Council. Experienced home -study counselors New 64 -page "ElectronlCS" fact book. always available to help you. 16 lust off the press, is yours FREE. It answers the most -otter -asked questions 8 Broad career guidance facilities. about breaking into electronics.

Any number of schools can teach you electronics. All of them offer some of these extras. But only I.C.S. has them all. Why should you settle for less? Cut yourself in on electronics success. Mail the coupon that brings you all 16 electronics extras. Do it right now. Cover Photo NOW THERE ARE 85 RADIO by Don Lothrop RADIO-TV SHACKS COAST TO COAST!

ARIZONA EXPERIMENTER PHOENIX -3905 East Thom.. Rd. CALIFORNIA ANAHEIM - 507 East Kt.11a An.. BAKERSFIELD - 1308 19th St. LA HABRA - 1511 Wut Whittler Blvd. J LONG BEACH - 3976 Atlantis An. LOS ANGELES: 1966 .. Downy - Sto..veed Shop. Ctr. June -July H á Lad.. Shep. Ctr. - 5305 C.ntin.l. Av.. G 7 Minion Hill.- 10919 S.pulv.dO Blvd. - V Rued- 19309 Victory at Tampa \ - 22519 Hawthorn. Blvd. CONTENTS /INDEX ` = c.; - Wut Crin. -2516 Ent Workman Ave. 1. m d Woe L. A. - Mee Blvd. at Overland OAKLAND (San L..ndr.) - Bay FIr Shop. Ctr. P.- A SACRAMENTO - BOO Fulton Ave. *Cover Highlights SAN DIEGO IL. Mes.) - Gr.um.nt SMp. Cl,. u_ = 1- cg SANTA ANA - Bristol lu. Shop. Ctr. 1 c á COLORADO DENVER: 795 South Santa F. Dr. 33 Wetland Shopping ants *Audio Compressor CONNECTICUT HAMDEN - Hamden Mart. Shop Ctr, MANCHESTER - Mon. huts Shoo. Prk.d. NEW HAVEN - 92 York St. Ohms Range Expander 37 NEW LONDON Ctr. STAMFORD - 29 HghRi.iLd. pÿ WEST HARTFORD - 39 Sa. Mun St. ILLINOIS 40 CHICAGO - Evr Pr..n man at 95th N. *Dial -a -Ohm MAINE PORTLAND - Pln. Tr.. Seep. Ctr. MARYLAND *Atomic Destruction from Space 42 LANGLEY PARK - N.mpshir.L.ngley Ctr. MASSACHUSETTS BOSTON: 167 Wuhlnoton St. 590 St. Will Rogers and Audio Tape 46 derlal Stn BRAINTREEi - South Sher. Plu. BROCKTON Westgate Moll - Ave. B R 00 K L I N E- 730 Cem menrulth CAMBRIDGE - Fresh Pond Shop. Clr. *NeonLamp Calculator 49 FRAMING HAM World W ELL N Control Shop. Plan SAUGUS -N. E. Shop. Ctr. SPRINGFIELD - 1162 Mln St. WEST SPRINGFIELD P100. Shop. Ctr. *Lab Check -Lafayette HA -520 53 WORCESTER MINNESOTA MINNEAPOLIS - 1121 Nireliet Ave. ST. PAUL - 473 North Snelling *SCR Photoflood Controller 55 MISSOURI ST. LOUIS: I125 Pine St. (WII.r Ash. Div.) South ty Shopping ter, nShopping Cuts, Join a Radio Club 62 Northland NEW HAMPSHIRE MANCHESTER - 1247 Elm St. NEW MEXICO Electronic Dial -Lock 63 ALBUQUERQUE - 611S Loom. N. E. NEW YORK B INGHAMTON (V..t.n- V.sl.l SMp. Pion Shop. Ctr. B UFFALO (Clarence) - Trusltovn NEW YORK - 1128 Ave. of the Americas *Lab Check-Jensen CC -1 69 SCHENECTADY IRott.rdaml - SMper.m. Clr. SYRACUSE: 3057 Erie Blvd. East. Foirmount Fir Shop. Ctr. 15 11 OHIO ,Lab Check- Hallicrafters CB- p CINCINNATI - 852 Swift Ctr. OKLAHOMA OKLAHOMA Shop. Ctr. Screamer 13 TULSA 27301South Harrvvarrd Perf-Board Project- OREGON PORTLAND - 1921 N.E. 42nd St. PENNSYLVANIA 75 PHILADELPHIA: Propagation Forecast 2327G Cettm.n Ave., R Il Moll 1126 Walnut St. PITTSBURGH -309 Se. 141110 VIII... RHODE ISLAND New Angle for Your Work Bench....16 - CRANSTON -1301 Reservoir Ave. rI EAST PROVIDENCE - Shopper.' Ton TEXAS El ABILENE -2910 North First St. the World on Your CB Rig 18 ARLINGTON - Collins at Park Row *Hear AUSTIN - Hanooth Shopping Cent*. B ROWNSVILLE -847 S. E. Elirah.th St. DALLAS: Mdoilhsa Center 81 125 W Nage Calling All Vampires Plymouth Pork Shop. Ctr. FORT WORTH: ISIS Se. Unlurelty Dr. 900 East Sorry St. Light Watchman 83 3524 Donlon Hiohwq' Electronic 2618 West 7th St. HOUSTON: 5455 Gull Frrway 322 N.rthlln M.11 DX 81 8.II.In - 4759 (Gunton Language SAN ANTONIO: 150 Wonderland Shop. Ctr. 8114 S.W. Mlliloy Driva 1620 High.), 73 North Polarity Tattletale 89 WACO - Austin102 UTAH Mall. on pages 58, 68, 72, 74, 80 & 86. SALT LAKE CITY - Cottonwood Additional Short Subjects VIRGINIA ARLINGTON - Washlnelon -L Shop. Ctr. WASHINGTON SEATTLE: WHITE'S RADIO LOG, Vol. 45, No. 3 -Page 96 2025 Third Ave 837 N. E. l101h St. Burin Pl.r. DEPARTMENTS Positive Feedback 6 CB Column 10 Bookmark 14 New Products 18 Ask Me Another 23 Literature Library 30

RADIO -TV EXPERIMENTER FREE RADIO SHACK STA E ELECTRONIC PROJECT BOOK With Purchases of $4.95 SURPRISE PAKS or Mor = jo At a fraction of their cost - WHILE THEY LAST! All types. all kinds - semiconductors (tested & untested), buy now! PROJECTS ...un ann P. bite AP AJPrNt R 60 -pc Transistor wro. sun roes_+ e..w`.1.r Surprise Pak GUITAR AMPLIFIER 98 NPN's,PNP's 10W, 20W, 2 SOW transistors plus subminiature types. 2B 27 -034 2 98 SOLID -STATE MODULES 100 -pc Semiconductor A Wireless Phono Oscillator Module: designed to play your phonograph, Grab Pak directly through a radio without connecting wires. 27-257 .... 4.95 0 Intercom Amplifier Module: custom -build a modern, convenient intercom system for your home or office. 27 -254 4.95 298 PNP's, NPN's. "Baby- Sitter" Amplifier Module: gives real peace of mind; even lets asst. case styles you monitor sound of baby's breathing. 27-256 & TO -3 4.95 10 TO -36 Phonograph power transistors, top hats. du- O Amplifier Module: designed for use with crystal or al germaniums, etc. 27 -037, 2.98 ceramic cartridge. 2 watts peak power. 27-261 4.95 Telephone Amplifier Module: permits "group- listening" to a phone Infra -Red conversation; talk with hands free. 27 -260 4.95 Super High -Gain Amplifier Module: for use as a hearing aid, audio Transducer Kit signal tracer, "eavesdropper ", etc. 27-251 4.95 Power Amplifier Module: the ideal amplifier to use with tuners, / - Parab olic rlector. e- microphones, paging systems, or as signal tracer. 27 -253 4.95 °y/ 198 f 3" a Guitar Amplifier Module: can be used with guitars or any stringed filter detec- instrument. 2 watts peak power. 27-255 4.95 tor complete with pictorial diagram. 27-035 1.98 AC Power Supply Module: converts 115 VAC to 6 VAC, 1 amp. Use with rectifier -electronic filter (below). 27 -258 1.95 60 -pc Jumbo Rectifier Rectifier -Electronic Filter Module: provides dual DC output from AC power supply. 6 VDC; 24V max., 1 amp. 27-259 3.95 Surprise Pak Optional Accessories for Modules ea. Above 98 Less than 4; Cat. No. Description Includes top Key Letters hats, epoxies, 27 -1430 Loopstick Antenna Each 1 23-465 A .59 zeners, diodes, "C" Cells (4 required) 27 -1437 A .14 etc. A great buy! 27-033 .. 1.98 Battery Holder (2 required) 23-006 6V Lantern Battery A 25 B, C, D, E, 27-258 AC Power Supply G, H 1 05 10 -pc Power B, C, D, E, G, H 1.95 27 -259 Rectifier -Electronic Filter Pak 40 -1203 B, C, D, E, G, H 3 95 , Transistor 4" Speakers (2 required) 27 -1384 4PDT Switch B 1.99 Asst.l4 10,20 27 -066 B 49 98 watt, 50 watt 5009 Control w Switch /- germa- 40 -219 8" Extension Speaker a 79 -' sizes; C 8.95 nium, silicon 27 -1264 100-Ft. Speaker Wire types. Asst. 10.3, -5, -8, -13 33 -100 Lapel Microphone C 2.39 F and TO -36 cases. 27-212 500K Control w Switch C, 1 89 D, F 27-036 Net 1.98 40.1213 8" Speaker E, H .79 44 -533 Telephone Pickup D, E, G, i 3.99 .-ARCHER+ TWIN -PAKS 33 -180 Headphone E .99 PNP Types 23 -468 Penlight Batteries (2 required) F 1.98 27 -1433 Battery Holder F .10 33-918 Dynamic Microphone F .22 5 Each of 33 -115 Contact Type G 8.95 Microphone H 98 2N107 Types 1 49 CK722 Types IN11111.11111=11111 8R8)It1IIIIIRIIIRMRNRIIIIIIIMO ieiRt-. 1 9 Please send FREE 1966 Radio Shock Catalog! Exclusive! Ideal R /TV -no, Please send me for all audio applications. Ease MAIL the modules and accessories I have diagrams incl. 27 -031 1.98 listed below. My order totals $4.95, so include my TODAY to FREE copy of your $2.00 Solid -State Electronic ProlrL! PNP book. I enclose S which includes 500 to cover 10 NPN & 15 NEAREST postage and handling anywhere In the U.S.A. 25 for 198 For RF appl ca- RADIO tiOnS. switching. Name (please print) i general purpose SHACK aud,e types. Replace many Street number without circuit change 1.98 STORE City State lip 27.1516 . -ill -- fly------u. --s JUNE -JULY 1966 'RADIO-TIM the /777i Model 501 EXPERIMENTER => emu j ; a s0nt1 III(:II FlI1F.I.rT1 COMPONENT SUBSTITUTOR R-etMa i IM tttlRY .04i

MOM ,W ara. instrument acclaimed by rtM._. Moe .+a ...the .On. Moo.* r~ MMMM.r servicemen, engineers and I noma. anon aroma school shops now available in a owl RADIO -TV EXPERIMENTER wire-it-yourself KIT! et step -by -step illustrated instructions 501 easy -to -build make the Model JULIAN M SIENKIEWICZ Editor WA2CQL /KMD4313

WILLIAM HARTFORD Technical Editor KKD7432

ELMER C. CARLSON Construction Editor ANTHONY MACCARRONE Art Director

IRVING BERNSTEIN Cover Art Director

EUGENE F. LANDINO Associate Art Director

RON STAFFIERI Art Editor

JUDITH ANDERSON Art Aoaoriate

ELLIOT S. KRANE AdrertiA ÌH0 Director

JIM CAPPELLO Adrertiaing Manager

LEONARD F. PINTO Production Director

CARL BARTEE Production Manager

places a HELEN GOODSTEIN Assistant Production Manager Substitutes for any one of complete CLIFF SHEARER Promotion Director over 80 component values range of components JOSEPH DAFFRON Etecetire Editor at your fingertips for fast substitution Will substitute President and Publisher up to 4 different B. G. DAVIS Components at No longer do you have to handle the same time crumpled parts -- .solder and un- solder components as you Ereeutire nee President and Assistant Publisher troubleshoot a set. With a twist JOEL DAVIS of a knob you can set the 501 A surge protector to any electronic components rice President and Editorial Director switch prevents arc - you want and need ...Substi- ing, sparking, orheal- tutes for Carbon Resistors - HERB LEAVY, KMD4529 ing of electrolytics Power Resistors-Capacitors - Electrolytics - Crystal Diodes - Selenium Power and Silicon PADIO -TV EXPERIMENTER, Vol. 20, No.3 07891, is published bimonth. Electrolytics Power Rectifiers. ly by SCIENCE & MECHANICS PUBLISHING CO., a subsidiary of Davis @2595 Pork are Publications, Inc. Editorial, business and subscription offices: 505 -year subscription (sis issues/- discharged Model 501K Kit V Net Ave., New York, N. Y. 10022. One automatically 54.00: two -year subscription 112 issuesl -$7.00; and three -year sub- year for postage outside Model 501 Wired $39.95 Net scription 118 issued -510.00. Add $1,00 per the U.S.A. and Canada. Advertising offices: New York, 505 Park Ave.. P1 -2 -6200: Chicago: 520 N. Michigan Ave., 527 -0330: Los Angeles: Write for complete catalog of kits and 1709 W. 8th St. 213-483 -5317; Atlanta: Pirnie & Brown, 3108 wired instruments - and name of Piedmont Rd., N.E., 404 -233 -6729; Long Island: Len Osten, 9 Garden nearest distributor. Street, Great Neck, N.Y., 516- 487.3305: Southwestern advertising representative Jim Wright, 4 N. Eight St., St. Louis, CH 1 -1965.

EDITORIAL CONTRIBUTIONS most be accompanied by return postage ELECTRONICS CORP curt wit, be handled with reasonable rare; however, publisher assumes rc responsiE ility for return or safety of manuscripts, art work, or to the Editor, Roslyn Road, N.Y. 11501 s holographs. All contributions should be addressed 315 Mineola, Rodas -1h LAsenmenter, SLL' Purk Avenue, New York, New York 10022. Export: Morhan Exporting, 458 Broadway, N.Y.C. 10013 Canada: William Cohen Corp. Second class postage paid at New York, New York and at additional nailing ollice. Copyright 1966 by Science and Mechanics Publishing Co.

4 RADIO -TV EXPERIMENTER KEEP PACE WITH SPACE AGE! SEE MANNED MOON SHOTS, SPACE FLIGHTS, CLOSE -UP! FREE! FREE! 148 SEND FOR GIANT AMAZING "HP" SCIENCE BUYS CATALOG PAGE e for FUN, STUDY or PROFIT SEE BELOWI SOLVE ROBLEMS' TELL FORTUNSS' PLAT GAMES See the Stars, Moon, Planets Close Up! NEW WORKING MODEL DIGITAL COMPUTER ACTUAL 3" ASTRONOMICAL REFLECTING TELESCOPE MINIATURE VERSION 60 to 180 Power- Famous Mt. Palomar Type! An OF GIANT ELECTRONIC BRAINS Unusual Buy! .assembled- -Ready b- a 'i ,il Il Fascinating new see -through model computer -r' actual! solves r the (tiny of Satur, the fanti- fuu' l Adds. sub,tract,h multiplies, Sating planet, \lars, huge craters shifts, gdrmenl.. c ro-s. num,rlaee, counts, on the %l.a,n, Phases of Venus. 4ampareni p colored,31ra, tgid Star Closters. \)units of Jupiter in .nlie pints easily ,s,emassembled. h led. 12' x detail. Galaxies' mount 43g ". Incl. ata'p- ,stun assemblya diagrams, Equatorial 32 -page instruct Lan honk covering ,porn,,,',,, computer language with lock on both axes. Aluminized I binary syatrml, programming. and 15 tXi)rn,menta- and overeoated :I" diameter high Stock No. 70,683 -HP $5.98 Postpaid speed f /10 mirror. Telescope cremes equipped with a BOX eyepiece and Handymen, mounted Barlow Lena, giving Hobbyists, Homeowners) you tiil to 1,0 lamer. Low-cost INGENIOUS NEW VACUUM accevory eyepiece available for BASE higher powers. An Optical Finder Makes Tools and Appliances Portable Telescope. Iwat'I so essential, Is Sn moo' all klo,l. 1 mutually bolted-town de- also Included. Sturdy. hardwood, siees flout pl.a, 1" place Machined top surface portable triptal. FREE with Scope: of vacuum Base drilled In securely hold vice., --Valuable 57'.48 CHART plus 272 page "H.l.l'hRUbA OF miter boxes. drills, refectora, gages, measuring ENS" plus HEA1'- devices, food choppers and other home appliances. -Holt' TO USE l'Of -f( TELe.sl'OPE" BuiK. Base also handily adapted for mounting camera, Stock No. 85.050 -HP $29.95 Postpaid binocular or telen.l,e to c tslndnw. Bottom plate of heavy neoprene attaches 414" Reflecting Telescope-up to 270 Power securelyrely rby Stock No. vacuum, vert lenity, horizontally, aven upside dawn to lint demo, 85,105- HP...... $79.50 F.O.B. metal, porcelain. formica. glass, etc. 11,ít resists to 50 to 75 -lb. force SUPERB 6" REFLECTOR Parallel base, 200 -Ib. force perpendicular to hase. Rugge,lly con- TELESCOPE structed of cast aluminum. Gray baked enamel finish. T,a' ...face Up to S7 f; l'inv r. Rya :,luri ii nu,unt and Pedestal Base. meet-urea 2 1/2" x :la'4 ". Overall else Stock 5" x 41,2" x 2' high. No. 85.086 -HP $199.50 F.O.B. Stock No. 60,567 -HP $3.00 Postpaid WAR SURPLUS AMERICAN -MADE 7x50 BINOCULARS BARGAIN PRICE -WAR SURPLUS Fntf ravings: Ili:. -attd. COLLIMATOR AND INFINITE LIGHT SOURCE An ew ellrnt I a mg. In e,,duaí'.y11 Expensive surplus gun sight orig. cost tomes. Exit Coil. about Pupla 7 Á Pprnx. held at 1,1100 yd. Is "sa $100. R'as essentially a collimator or sourer of In- 370 fl. Carrying rabe Included. -/) finite light, Many uses fur experimenters -re- plus oar sur- labs. Contains ring and dot reticle, 2" real achromatic lens, No. 1544.HPU $78.40 Ppd. 'altered reflector bulb- 330"x2 %" 8 s 30 Binoculars- reflector glass plate. Bulb operates siular to alone. on 14V. can Stock No. 983 -H .. $40.00 Postpaid be rennerl rd to I10V or inexpensive transformers 7 u 35 American Made B'noeulara. are available. Convenient Stock No. holes for easy mounting. Sturdily built 964 -NP Ppd. ,, unit mea. B: ". "x3'4" $55.00 Stock No. 70,774 -HP . ..59.95 Postpaid MAKE YOUR OWN POWERFUL 1601/ T former for Light Source. ASTRONOMICAL TELESCOPE Stock No. 60,521 -HP $3.75 Postpaid refICOMt Grind Your Own Astronomical Mirror i has ',noon, sin mirror attn. It AZ pal niloorn and' e ì,;, .:. bn tad instrumenta 'FISH' WITH A WAR SURPLUS MAGNET ltea . 7 rreenRing } "WO ,:,Im rrnrp S7su to nunereda nr Go ,.nar. Treasure Hunting on the Bottom Stock No. Diem. Mirror Thickness Price [,real idea.' Fascinating fur, and sometimes tre- 70,008 -HP 41/40 34" S 7.50 ppd. mendously prohtahle! Tie a 'line to our 5.1b. Magnet. - 70,004 -HP wa drop It overboard In bay, river. lake or ocean. Troll it 11.95 ppd. along the bottom -your treasure" haul can be outboard 70,005 -HP 8" m'," 19.50 ppd. ots,rs, anchors, fishing tackle, all kinds of 70,006 -HP 10" t+ metal al,,. 30.75 1 f.o.b. 5 -1b. Magnet In war surplus-Alnico V Type-Gov't. 70.007 -HP 121/2" - Cablest.oat, S50. Lifts over 150 lbs. n land -much 59.95 ( Barrington rights n- greater under ter Ord.. nw, and toet this new sport. Stock No. 70,57I Brand New, Quick- -HP 5 Ib. Magnet $12.50 Postpaid Charge, Industrial Surplus Stock No, 70,570 -HP 3, /r lb. Lifts 40 lbs Stock No. 85,152 S8.75 Postpaid -HP l51ú lb. size. lifts 350 lbs 533.60 FOB NICKEL -CADMIUM BATTERY BINOCULAR -TO- CAMERA HOLDER Unparalleled Value For the tire/ time a B -lull, light -weight nickel- cadmium battery In alainless Will Fit Any Camera steel, ,trap type casing. 4 -amp hour capacity. Almost unlimited life- thousands For Exciting Telephoto of discharge - Pictures charg, cycles with minnt, deterioration -- charges fully Bring distant objects 7 t with In approx.. I hr. with Edmund charger kit. Just a few a 35 -mm s camera. 755u, "i,' "I :i, .-i,d o drapa of wafer per oeir NEW CASIEKATti-nlN,,l't I. Alt provide full maintenance. Hun- 111t.11ERr dreds of uses fur hobbyists. Ideal for long range photos of at aid Ife, amateur photographers, ,hips, people. plane,. etc. Camera and campers, model builders, etc. Unequalled for recharge- binocular attach ea Use any binoc- able lanterns: cycle scooters. and boat lights, portable fluorescent ular or and monocular-any cmera. ,till or ultra -violet light,; electronic flash units. B.ltlrry requires movie. Take color , r black minimum and ,vhite of electrolyte; is sealed to prevent loss; delh rra shots. Attraetr,e gray crinkle and bright chrome finish. 111" long. output nearly 100' -e of Full directions for taking telephoto.. at below freezing temperatures compared to 50': by lead -acid batteries. Sn c'rrost te funny Stock No. 70.223 -HP $11.50 Postpaid under any stage of recharge. Can't be damaged by accidental charge in reverse Ibut nul rerolm ended1, Stud type terml»al on top 1 le" apart marked for polarity: 0/32 thread. "Balls of Fun for Kids . . nuls and lurk -washers, 0"x2 "1i ". Wt. 2 Iba. 12 minces. Traffic Stoppers for Stores . Stock No. 70,776 -HP $15.00 Postpaid Terrific for Amateur Meteorologists CHARGER KIT FOR 6 -VOLT BATTERY. Charges In approx. I hr. SURPLUS GIANT WEATHER BALLOONS Slays oft automatically. attaches tu Stock No. 70.778 battery Includes tran,lormcr. cale. It last avatlable again in tag a -sr.. tiam- ballast testators, charger circuit board, mount- l'eratease ighborhorsl sen sat ion. treat ing hardware, ti-ft. curd, plug switch, assembly Instructions. backyard fun. Exciting beach attraction. plow Stock No. 70807 -HP op with vacuum cleaners or auto air hone. $8.00 Postpaid Sturdy enough for hard play; all other tines. ONE 1.2 VOLT NICKEL-CADMIUM CELL F flied with helium 'available locally, usee bal. No. Stock 40.798 -HP . lu na high In the sky to attract c veds,adver- ...... $3.95 Postpaid tise store sales, announce fair openings, etc. Amateur meteorologist. use balloons to measure MAIL cloud heights, wind slued. temperature, pres- COUPON for FREE CATALOG "HP" sure, humidity at various heights. Photogra- EDMUND phers can utilise for low-cost aerial photos. SCIENTIFIC CO., Barrington, N. J. Recent Gov't surplus of heavy, black, neoprene Completely New 1966 Edition. 148 pages rubber. Nearly Stock No. 60.568 -HP 4500 U I Bargains. 52.00 Postpaid ,'lease rush Free SLIGHTLY HEAVIER RUBBER- MANUFACTURE! Giant Caudog NP. Stock No. 60.562 -HP-4 It. diem. alas 32.00 Postpaid Name Stock No. 60.564 -HP ft. diem. -8 size... 54.00 Postpaid Address Iii Reaan .Situ Men NWINII Osata abpar,iON Ca urn is 020511011110C City State.... EDMUND SCIENTIFIC CO..SARRINGTON, N. S. Zip

.IcN: -JI::l'. 19(0; 5 envelopes that demand my attention before I go home tonight. I have made it a rule to open each envelope and examine the replies carefully. Each questionnaire's data was summed in my mind much in the same manner as data bits are di- gested by a digital computer. This first processing of the raw data, much cruder than the final tabulation will be, gives me a "first" impression of my readers, and indicates to me that the survey is doing the job it was de- POSITIVE FEEDBACK signed to do. seoe00000easeocoas000a Exactly how difficult it was to prepare the questions for a survey can be gleaned from JULIAN M. SlENKIE11'ICz, EDITOR the following short story once told to me by WA2CQL /KMD4313 a Madison Avenue researcher. It seems that one cloudy day on a New England campus Thank you! In our last issue many rich with ivy -covered halls a fiery object of you discovered a questionnaire asking plummeted from the skies burying itself in for information about you -our reader. You the tupf amid the fanfare of a blinding flash were asked many questions including such and deafening roar. Naturally, every major personal ones as income, age, occupation, scientific department in the University laid etc. Replies began to come in almost im- claim to the object: so before it was dug up mediately after you subscribers received an Academic Commission consisting of lead- your copies. A few days later replies from ing professors from the Physics, Chemistry, newsstand readers began to cover my desk. Biology, Mathematics, Geology and Medicine In fact, even now as I write this thank you departments plus a few others joined forces note, my desk top is deluged with unopened to explore the buried object. Once removed

The only lab instrument you need to complete Scott's new 80 -watt solid-state stereo amplifier kit

Scott's new solid state amplifier kit is completely protected against transistor blow- out. An ingenious "Fail- Safe" circuit using an ordinary light bulb takes the load off expensive silicon transistors when you first plug in your LK -60 ... so, if you've made a wiring error (almost impossible with this kit), no harm done! Other bright new ideas from Scott: preassembled, factory-tested modular circuit boards; full - color instruction book; amazingly low price: $189.95 Write for complete spec sheet: H. N. Scott, inc., III Powdermill Road. Moped, Mass. Export: 13 Scott International, Maynard, Mass. Cable sin. Prices slightly higher west of Rockies. SCOTT'

RADIO EXPERIMENTER 6 -TV from its shallow grave, and washed clean of sod, the cosmic visitor turned out to be a solid block cube exactly one meter on its sides with no markings on any of its six THE SUPERSENSITIVE faces. The cube defied all tests put to it. It could not be chipped, X -rays would not pass through it, flames would not sear it, chemi- DARKROOM METER cals would not dissolve it: just to name a few of the many tests put to it. Finally, the austere Commission announced its ,failure to S & M MODEL A -3 the University's governing board declaring that no one could possibly discover anything about the cube -it defied analysis. To which, $36.95

an obscure professor of Psychiatry asked, in kit form "May I try ?" Naturally, he was sneered at, $41.95 ..b but the cube was placed in his trust for ex- factory assembled amination. Removed to a quiet room, the $5.00 cube was placed on a soft chair. The profes- Carrying Case sor sat down nearby, crossed his legs, opened his notebook and wet a poised pencil tip as he asked, "What is your name ?" The cube answered, "Harold!" The moral of this story is that one must Here is a precision instrument that meets the highest ask significant questions in order to get signif- standards of any meter available today. The S & M icant answers. A -3 uses the newest cadmium sulfide light cell to measure light levels from twilight to bright sunlight I believe significant questions were asked at ASA speeds of 3 to 25,000. This supersensitive in our survey and you gave us significant darkroom meter is successfully used with movie or answers. Armed with detailed knowledge still cameras, microscopes, telescopes and it can about you, our reader, the editors of RADIO - also be set up for use as a densitometer. TV EXPERIMENTER can better plan and pre- The computer gives F from .7 to lists pare future issues. Even more important, we stops 90 and exposure time from 1/15,000 sec. to 8 hours; 4 range se- are now better prepared to ask our readers lection; EV- EVS -LV settings. The unit is also equipped more detailed and significant questions in with a large (41/2 ") illuminated meter, paper speed ensuing surveys. When you see them, we control knob and a new battery test switch. beg that you will respond as you have done The S & M A -3 darkroom meter is ideal for darkroom in the past. and studio applications where accuracy is a necessity. Again, let me say, "Thank you." It's available fully -assembled from the factory, or in easy to assemble kit form. Dig that Computer. The clarion notes of a trumpet are now sounding forth from a RTU 789 machine. For the first time, the sound of a SCIENCE & MECHANICS -Kit Division trumpet has been generated by a computer 505 Park Ave. /New York, New York 10022 with such fidelity that professional musicians Please send the A-3 Supersensitive Darkroom Meter as checked below. I understand that if I am not satisfied, are unable to tell the difference between the may return the meter within 10 days for a complete refund. computer sound and the real one. A special Add 10% for Canadian and foreign orders computer program was devised by research- N.Y.C. residents add 5% for sales tax ers at the Bell Telephone Laboratories and O $36.95 -in kit form O $41.95 - assembled was used to achieve the D Check or money order D Enclosed $3.00 deposit, trumpet notes by enclosed, ship post ship balance COD, plus Jean C. Risset, French physicist and com- paid. postage and COD poser on a visit to Bell Laboratories for the charges. past year. A -3 Carrying Case-$5.00 In the research study, trumpet notes were NAME _. recorded on magnetic tape and converted (Please print) into digital form, which was then fed to an IBM 7094 computer, Mr. Risset explained. ADDRESS ..._.-_ The computer analyzed each tone for its sound wave frequencies and then displayed CITY STATE CODE the spectra, or patterns, in graphic form. L J

JUNE-JULY, 1966 Positive Feedback line because their electrical system evolved piece by piece rather than on a regional plan. Having made spectra from musical notes, Two outstanding transmission grids have the computer then used its "knowledge" to been built by the Federal Government work- make notes from spectra. It generated num- ing from regional plans -one in the Ten- bers which were converted to electrical sig- nessee Valley Authority and the other in nals. These signals were fed to a loudspeaker, the Bonneville area of the Northwest. Two resulting in the realistic notes of a trumpet. more are under construction on the West No fuse is needed when this computer blows. Coast as a cooperative effort of Government and private power companies. If such a Blackout Look Back. Repetition of the major line had been available to Easterners, massiee power failure in New York and New emergency power could have been delivered England last November can only be avoided immediately from the Virginia area to af- by a major overhaul of the electric systems fected states. The power was available, but of these states. This is the essence of a report it could not be delivered. published by the American Public Power A second, related cause of the failure was Association. APPA is composed of represent- lack of Government authority to establish atives from 2,000 publicly owned power minimum standards in the design and opera- systems throughout the United States, 90% tion of interconnections. Since the North- of which are municipal companies, the other east system is no more than a network of 10% primarily county systems. At least many small companies each of which joined three deficiencies stand out as basic causes at its own convenience, there has been no of the Northeastern blackout. overall supervision of the size and entciency One is the lack of a major transmission of the links. In contrast, the West Coast has line, capable of carrying high voltage and fewer utility companies and bigger links. linking all the private and public utilities. A third underlying cause of the failure was Northeastern states do not have a backbone the alternating current used over most of the TELEX 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 MONOSET 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 cushions ... Rugged, moisture - Magna -Twin drivers... Designed directly into your ears through proof magnetic drivers give especially for ham requirements. adjustable tone arms ... Telex broad response, excellent sen- quality construction assures re- sitivity ... Sturdy construction liability. of high impact plastic.

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RADIO -TV EXPERIMENTER United States. Rather than flowing in a direct BECOME A RADIO TECHNICIAN stream (DC), the electrical energy alternates For ONLY $26.95 (AC), making it mandatory for all the local companies to synchronize their AC power BUILD 20 RADIO to the same If one current gets out of clock. CIRCUITS AT HOME only phase, it throws the next utility out of whack 5 with the New 5 and a "cascading" effect takes place. Progressive Radio "Edu- Kit "Cw 26 This is what happened last November: ALL Guaranteed to Workl

Because one switch in one plant in Ontario, A COMPLETE HOME RADIO COURSE Canada, shut off, the current was disrupted. BUILD A sudden decrease in power followed by an 12 RECEIVERS 3 TRANSMITTERS off SIGNAL TRACER equally sudden increase threw connections SIGNAL INJECTOR all the way to northeastern New Jersey and CODE OSCILLATOR SQ. WAVE GENERATOR to the tip of Long Island. AMPLIFIER The APPA recommended consideration of No Knowledge of Radio Necessary No Additional Parts or Tools Needed Training Electronics tN expanded use of direct current transmission Excellent Background for TV Technicians Since 1946 lines. The West Coast is now experimenting TOOLS -CUTTERS, TESTER, FREE SOLDERING ISO PLIERS with DC tielines in its regional system. In all, the APPA made nine recommenda- WHAT THE "EDU -KIT" OFFERS YOU The Edt1 -K11 offers you an outstanding PRACTICAL ROME RADIO COI -RSE at a oakbottom price. You will learn radio tions including a call for more hydroelectric theory. c n.trortion and servicing. You will learn how to build :i.11eo, using regular S hen at ics; how to schier and wire In pro- sites in the Northeast. More than eight mil- . manner: how to service and troubleshoot radios. You will ohon'w'I to ...irk n -Ith punched metal hassis a well the new dud i' broil chassis. You will learn the principle of RF and AE lion kilowatts of undeveloped hydroelectric I IUierta and oscillators, detector rectifier., teat equipment. learn practice code.eme. using the Progressive Code Os- power exist in the New England and North build Oscillator, al''Trncer, Situ e Wave Generator. Amplifier Anand Atlantic states. At present, most power in for cummiia. and learn how to operate them. You will receive cellrol background for TV. In brief. You will receive a baste n in Electronics and Radio, worth many times the small this area comes from steam. i 1 ' 1 1:1. .real, $20.95 Complete. One of the ironies of the power failure was PROGRESSIVE THE KIT FOR TEACHING METHOD EVERYONE that Consolidated Edison system in New The l'i' a:o a..ile Radio "EH 1..11 do , t ne a the slightest Kit is the t.'ratais[ education rkground n In radio or se ente. York al rcdlo kit In the world, and I,c "Filu -Kit" is used by young City, largest of the Northeast utility universally accepted na the .1 old, schools and clubs, by Woolard in the field of electr.er 19,1 Forces Pera,mnel and companies, had enough reserve electricity to Ir. Dnhitng. The Eciu Kit" os Administration fur the moalemn educational amine and rehohllitallon. principle of "Learn by Doing. Ise of the moat Important service its entire area. But it could not get the begin by building simple Lest of the "Edu -Kit" Is the adio. Gradually. In grogrr. Service which we steam up fast enough. Hydro- electricity re- manner. Your ,imitationvlde. We welcome studnts l' ale. you construct more oad end us their problems. noticed n nitl.lube radio circuits related to any of the quires no more than throwing open the gates. learn more advanced theory an 'wilier techniques, and do work like. aerial covered in the "Edu. Part of the Northeast's problem may be si,ualadioec nici an. coarse. or encountered lb 4 'if eten ler experiences No the held solved by construction of an Atlantic back- regularACorcuit DC house currenta nt electronics. THE "EDU -KIT' IS COM bone transmission line, proposed by the \..0 will receive all purls an I instructions necessary to build IIRCrrnt radio and electronic circuits. each er- Yankee-Dixie Power Association. The line Our kits c imain tube', tube ockels, gura teeelectrolytic, mal pair dielectric condensers. resistors, tie strips, har,Iw Gibing. punched metal chasms, Instruction Man - would carry high voltage, and extend from h,.okup't mire. solder, soienlum rectifiers, volume controls, 'lies. etc. ':a.1,1itioon. you receive Printed ('Ircult materials. Appalachia to Boston. adding Printed Circuit Chasslo spi tel tube sockets, hardware utrurtlniw. tom also r useful set 'uf tools. pliera- 'rti piofesionol electric soldering' iron. a d selfpowered. c Radio and Electronics Tester. The "Edu -Kit" also is- les Code instructions and the Progressive Code Oscillator. You 11 also receive lessons for servicing with the Progressive Signal anti the Progressive Signal Infector. a High Fidelity Guide. m Amateur License Training, and a Quis Book. Ill parts, components. etc.. of the Edu Kit" are 100^' uncoil. selected, o 'shed.. Everything' is to leer. They litter thin ,aoocal hume Radio and Electronics course i o only $20 93. TROUBLE -SHOOTING LESSONS You will learn to trnuhleshm,t and service ratios, using the I 'r professional Signal Tracer. the Inflame Signal Injector. and the dynamic Radio . ad Electronics Tenter. Our Consultation Servie .111 lade you 01111 any technical problems. FREE EXTRAS Set of Tools Radio Book Radio and Electronics Tester Electric Soldering Iron Pliers -Cutters Tester Instruc- tion Book Hi -Fi Book TV Book Qui: Book Member- ship in Radio -TV Club: Consultation Service FCC Amateur License Training Printed Circuitry Certificate of Mirk Valuable Discount Card --- -sUNCONDITIONAL MONEY -SACK GUARANTEE- ORDER FROM AD- RECEIVE FREE BONUS RADIO & TV PARTS JACKPOT WORTH S15 'I Edu Kat' Postpaid. Enclosed full oiymeat of 526 95. "Edu -Kit" C.0 D. I will payr 526.95 pion postage. O O - Send me FREE .ddotaonal , forciation daser, Ding 'EduKmt. s O1163 s ra- i(rnJ¡er Address - m. "I guess we forgot to call back - PROGRESSIVE "EDU- KITS" INC. we fixed it ourselves this morning." 11186 Broadway Dept. 536NN Hewlett, N. Y. 1 1557

JUNE -JULY, 1966 9 CB RIGS & RIGMAROLE

a E::-----=c what's °o9 new a ; product column that's fun e 0000 to N read

Ever want more "talk power," ever think Of the ton -and -a -half of these gadgets now about getting something which offers more than offered to CB'ers. one of our favorites is the just a little more than most CB rigs, or did you "TalkPOW'r" audio processing unit being ever think about pocket CB'ing with a miniature marketed by E.C.A., 1236 N.E. 44 St.. Okla- rig? If you've been bothered by these things, homa City. Okla. 73111. Available for $17.95 Bunky, we've got some possible solutions for wired and tested (less battery and plug) or you. $14.95 in kit form. or the printed circuit board Blasting the Band. Like the elusive "Flying alone for $2. the "TalkPOW'r" will work on Dutchman" lost gold mine, for years CB op- virtually any CB rig. erators have been hot on the trail of something Tucked away in its 3 transistor circuit is the which they refer to as "talk power." "Talk ability to give up to 40 db of voltage gain for power" is a term which you won't find in a soft voices. and up to 20 db clipping for aver- dictionary, and its exact definition is rather in age microphone and voice. While all of this exact. For most CB'ers, it means boosting the electronic hocus pocus doesn't make one whit signal in order to work out over longer distances of difference in the actual output wattage of without running either more power or higher your rig, the "TalkPOW'r" unit pumps a souped - modulation than is permitted under the FCC's up amount of modulation onto the carrier. It prissy CB regulations. This, at first, may sound even works on rigs which have existing speech like an easy task, but it's about as easy as boosting circuits built-in. pouring hot butter into a wildcat's ear. Placing the device into the circuit of a CB One way to boost your signal is via the super- rig is a matter of unplugging the mike, plugging duper sky -hook method, but a fancy and elab- the " TaIkPOW'r" into the mike socket on the orate antenna isn't always possible. One other, rig, and then running the mike into the plug on and often overlooked, method is by adding a the processor. Output level can he adjusted, dash of pepper to the rig's audio system. This and you can even switch it out of the circuit is accomplished by means of some sort of audio if you aren't in the mood to melt down the processor such as a speech compressor, clipper, other guy's receiver. preamp. etc. The whole she -bang is a little larger than two packs of cigarettes -watch it light up your signal! Can't be matched. CB Rolls Royce? The people at Amphenol Distributor Division, 2875 S. 25th Avenue. Broadview, Ill., have whipped together a rather unique piece of communications gear. such as "you can't hardly find no more" on 11 meters. Dubbed the Model 650. it hums along on 18 transistors and 9 diodes. Within its rather small cabinet are some pretty sophisticated features such as 10 channel transmitter with both crystal and tunable receiving provisions, built -in PA system, combination S- meter /power output meter, adjustable E. C. A. TolkPOW'r Audio Processing Unit squelch. crystal controlled first oscillator with lU RADIO -TV EXPERIMENTER FIRST AND ONLY compact scrulox, screwariver sets

Increasing use of Scrulox square recess screws in ap-

pliances, radios, TV sets, electronic instruments . . .

even the control tower at Cape Kennedy . . . has created a need. A need for compact, versatile driver sets. Small enough to tuck in a pocket. Complete enough to be practical on shop bench or assembly line.

Now, here they are . . . from Xcelite, of course. Amphenol Model 650 CB Transceiver

two IF stages for superior stability, selectivity and adjacent channel rejection. Amphenol claims that the power output peaks at 31 watts with modulation percentage running over 95 %, all of this being filtered through twin harmonic traps so as to let Uncle Elmo watch his favorite TV program without benefit of your CB signal. Built like a brick space station, the Model PS44 650 is just about indestructible. For instance, COMPACT it will function at temperatures as low as 25 CONVERTIBLE SET degrees below zero, and shaking such as will seldom be encountered in normal use. The set Five color coded midget Scrulos drivers #00 thru #3 is housed in a cabinet made of heavy -gauge - One midget nutdriver IA" hex steel. - "Piggyback" torque amplifier handle increases reach and driving With its self -contained power supply for 12 power volts DC and 115 volts AC, it comes equipped See thru plastic case doubles as bench stand for operation on Channel 11. Retail price is $229.95. Mighty Midgets. A relatively new comer to the CB marketplace has issued forth two hand 99SL held units which should be snapped up for 1001 INTERCHANGEABLE BLADE KIT .,

Five Scrulox blades - .x.00 thru .13. Shockproof, break. proof, Service Master handle. Durable, see -thru plastic case

r--

XCELITE INC. 64 BANK ST ORCHARD PARK, N. Y.

Send Bulletin 141065 on Scrulox Screwdriver Sets . name

address

city state & zone L J Robyn " Walkie- Talkie" (left) and R,'T -400 (right) In Canada contact Charles W. Pointon, Ltd.

JUNE- JULY, 1966 11 I CB Rigs & Rigmarole

uses. The company is The Robyn Company. 4303 Kroes Road, Rockford, Mich., and their sets are called the Robyn Walkie Talkie and the Robyn R/T -400 100 -mw Transceiver. The Robyn Walkie Talkie is a full one watt. two -channel hand held CB station. It comes with batteries, leather carrying case; earphone. external battery or AC power adapter jack. squelch control with RF amplifier and combination battery and modulation meter. Nickel - Cadmium rechargeable batteries and charger are optional. Price is $69.95 each, or $129.95 for a pair. In the low -power department, the R/T-400 a FREE Year Subscrip- F..I in coupon for One - tion to OLSON ELECTRONICS' Fantastic Value is a pocket size, single channel unit running one Packed Catalog- Unheard of LOW, LOW PRICES tenth of a watt input. The 9 transistor circuit Speakers, Changers, Tubes, on Brand Name megacycle inhaler and a Tools, Stereo Amps, Tuners, CB, and other Val- features a superhet ues. Credit plan available. transmitter which averages about a mile cover- a the little NAME age. Price is $49.95 for pair of ADDRESS devils. CITY ZONE STATE Look Ma, No Hands! Safety first usually easy If you have o friend interested in electronics senc means CB second, because it isn't always his name and address for a FREE subscription also to zip along the highway with a mike and its push -button in one hand with the steering wheel in 'tether. Here's a way of eliminating the problem, while still having full use of your CB station. An outfit known far and wide as 475 5. Forge Street Akron, Ohio 44308 Roanwell Corporation. 180 Varick St.. New York. N. Y. 10014. offers a combination head-

ERSIN MULTILORE 5 -CORE SOLDER

Roanwell Corporation CB Headset

set /microphone which allows you to keep both only 69C hands on the wheel. All you need do is put your push -to -talk button on the steering wheel. the floor under your left foot. This button BUY IT AT RAÛ10 -TY or on the rig on and off and that's all there is PARTS STORES kicks to it! Prices vary, as there are a number of mike MULTICORL SALES CORP., WESTBURY. N.Y. 11591 types and impedances available for various rigs.

RADIO -TV EXPERIMENTER If you go mobile, it may pay you to look into Live Better Electronically With this item. Remember the mobile CB'ers lament: He went sizzling down the highway, LAFAYETTE One hand held mike and switch, A truck pulled out in front of him. RADIO ELECTRONICS He didn't even twitch. Pretty as a Picture. We saw these QSL Ca966g we thought FREE! plaques and they looked so neat that 660 you would like to know about them. You send Now BETTER THAN EVER the manufacturer your QSL card and he repro- 512 Pages duces it via a new process called "Permatogra- plate. Stereo Hi -Fi Citizens phy" which gives you an image on a metal Band Ham Gear Tape The image is actually a part of the metal and Recorders Test Equip- or ment TV and Radio Tubes can't be rubbed, worn, corroded, chipped and Parts Cameras off it won't fade. The metal Auto Accessories Musical peeled -and Tools Books "pematograph" of your QSL is then mounted on Instruments an attractive wood -grain plaque with a hanging Featuring Everything in Electronics for ring. HOME INDUSTRY LABORATORY from the "World's Hi -Fi & Electronics Center" LAFAYETTE Radio ELECTRONICS Dept. EXG -6, P. 0. Boy 10 Syosset, L.R., N.Y. 11791 Send me the Free 1966 Lafayette Catalog 660

Name -- -- Address - - - -- City_....---._-_.--°.--.- State---. --- -.- Zip (Please Give Your Zip Code No.) l, 1 Police, fire, ambulance emergency calls, CD, weather...

Perme -Pic Corp. Attractive Wood -Grain Plaque in on the Two sizes are available. 3" h' 31/2" at $3.50 tune ppd, and 51/2" by 61/2" for $4.95 ppd. You can Squires- Sanders also have photographs or even your CB license The manufacturer is Perma- done up this way. FM Alert First crystal FM emergency re- Corporation of America, Box 67. New Pic ceiver at a down -to -earth price. Two crystal Hope. Pa. receive channels plus tunable control. Sensi- tive, selective, stable receiver. Smooth, adjustable squelch. Choice of two models: FM Alert 152 -152 to 174 mc; or FM Alert 30-30 to 50 mc. Only $89.95. Matching speaker $9.95. Sold by communications specialists, or write Squires- Sanders Inc., Millington, N. J. 07946.

"You know, Gladys, I didn't know Squires kit building could be so much fun."

13 JUNE -JULY. 1966 FAMOUS WALKIE- TALKIE 1100KIlIA1tK KNIGHT KIT® 1304iew4)._ $588 each Postpaid Buy a pair for two -way fun. Tens of thousands sold at $8.88 each! No Everything is going up- wages, astronauts, license needed; operates hours on one battery. hem lines and the cost Complete with of publishing. But you Ch. 7 transmit crystal Fun to wouldn't believe build yourself. it by scanning the prices for the texts reviewed in this issue Even has of RADIO -TV EXPERI- Allied never before offered such value in a MENTER. In fact. for only one fin you can pick walkie- talkie kit! Sends and receives messages up to up all four books and still have enough I/i mile with 3- transistor circuit. Takes just a few scratch left to buy a good hours to assemble. Sensitive super -regenerative re- pre- Castro cigar. ceiver, push -to -talk transmitter. Telescoping antenna. Blue case 53/a x 27/8 x 13/4". Add 27c for each battery. Hi -Fi Duet. Today's music lover has a prob- Use coupon below to order your kit now. lem. Never before has there been so much high Check box to receive latest Allied catalog. fidelity equipment for reproducing music in the home. On the other hand, without Allied Radio, Dept. 20F a technical 100 N. Western background, the music lover can feel Ave. D Yes, send new free catalog! himself to Chicago, III. 60680 be ill- equipped to make decisions on what Please send kind me Knight walkie- talkie kits and make of system to buy PX 804 RPW). Also send batteries (83 PX 005 RPW). or build, and how and (83enclose ;5.88 for each unit ordered and 27c for eacn where to install it to get the best results on what battery. Satisfaction guaranteed or money back. is after all a considerable investment. Even when NAME these questions are dealt with. his problems (please print) are ADDRESS only just starting. He has to live with a tangle of wires, knobs and tubes as CITY, STATE __ZIP mysterious and com- J plex as the organism of a newborn baby, and demanding as much attention and care. Hum, distortion, or other disturbances can occur and he may have no means of knowing if these are the result of a defective component, or a simple misadjustment. A friend's set may sound better. Is this because his system is a better one, or because his speakers are differently placed, the USEFUL and EDUCATIONAL needle lighter, or the curtains made of different fabric? ELECTRONIC KITS Such information is not always easy to come C Mt M A T.A i. by. Two concise, reliable guides to the how and the why of high fidelity written specially for the !. èf layman, but also {--b 1 offering a great deal of useful advice for all owners and ire=-- _4i* would -be owners have just been reissued by Dover in paperback. They are High Fidelity 14 : Systems: A User's Guide by Roy Allison, currently Plant Manager of Acous- tic Research, Inc., and a former Audio Editor EXCELLENT training of and a useful electronics product - High Fidelity magazine; and Reproduction these are among benefits you will derive from of Trans -Tek's educational kits. They are designed for all levels of do- it- yourself experience, including the begin- ner. All kits come with schematic and pictorial diagrams and step -by -step instructions for easy construction. All components are superimposed on the schematics by means of skin packing. Kits include a code practice oscillator, 125 -watt hi -low switch, S00 -watt hi -low switch, regulated power supply, intercom amplifier, ultra -high gain amplifier, variable ac control, and transistorized metronome. Prices: $1.79 to $7.50. SCHEMAT -A -KIT is a registered trade mark of Trans -Tek. For more details, write or phone:

90 pages Soft cover MFG. RALAS- EK 46 illus. 300 NORTH AVE. GARWOOD, N. J. 12011 789.1047 $1.00 14 RADIO -TV EXPERIMENTER Sound by Edgar Villchur, President and Director of Research at Acoustic Research, where he has designed AR speakers and turntables. Both books sell at $1.00 each. High Fidelity Systems has been expanded and revised. It covers every aspect of choice of NEW CATALOG equipment. installation. operation and mainte- GIANT nance in clear, non -technical language, helped by detailed charts illustrating each component. its relation to the others, how it should he wired and so on. After an initial chapter on mono systems. the author covers every stereophonic component and discusses how to adjust the system and other fundamentals. While his book is not intended to be a buying guide to specific brands of hi -fi products, he does give helpful guidelines on how to buy, what questions to ask one's dealer. what conditions are best for testing, including which records should he played to illustrate various characteristics. and what to look for in general. 100's OF SIG P GES CRAMMED WM- SAVINGS

Dept. RI, 1012 McGee, Kansas City,Mo. 641,06 L Hu°n me 1' REI; 1:6I; 11 -A Catah.g. - w,rwuouc to. o, sousw Name

92 pages _ ..._ Soft cover +µ "" I FREE City StateS 69 illus. I Please be sure to show your Zip No $1.00 In Reproduction of Sound. Villchur explains in non -technical language how the different parts of a reproducing system work. After a description of sound in general, he discusses such topics as standards of high fidelity. sound reproducing systems, disc recording, pickups and needles. pickup arms, amplifiers, preamplifiers and control units, power amplifiers, negative feedback. loudspeakers, speaker enclosures, and room en- vironments. Historical developments are also in TELEVISION, RADIO, described. ELECTRONICS, RADAR, SONAR To get your copy of either book write to the ONLY CHRISTY OFFERS publisher. Dover Publications. Inc.. 180 Varick COMPLETE TRAINING! lnveetigute the Christy Complete Street, New York. N. Y. 10014. or check your Course. Why be satisfied with less? CTS Shop Method, Home Training local book store. makes learning easy. You learn by working with actual equipment. You receive Comprehensive training from Users Guide. Relatively few owners of the start. Can EARN AS YOU LEARN. Tape You become qualified to open your tape recorders, or potential buyers are aware own Electronics Repair business or to gain high pay as a TV, Radio. Elec- of the tremendous versatility of their machines. tronics. etc., Technician. view the tape recorder simply as 19 TRAINING KITS INCLUDED! Most persons You receive Multi-Tester. Oscillator. a record a supplement to or as an alternate for rto. Electronic Timer.ra' Rl ageeranti e Radio.eatrTltncllÏ 24' TV set loptionali and other player. valuable te.tin- 1uipment. FREE BOOK and TWO FREE LESSONS yours for the To acquaint the growing number of those who asking! N,, ot.11gation. tape recorders with their full potentiali- CHRISTY TRADES SCHOOL enjoy Dept. T7I1. 3214 W. Lawrence ties, Elpa Marketing Industries. Inc. asked Joel Chicano. III. 60625 Tall, noted expert on tape editing. and Martin I CHRISTY TRADES SCHOOL. Dept. T1711 a book on 3214 W. Lawrence Ave., Chicago. Ill. 60523 Clifford. author and editor, to prepare 3ee sAl m this subject. Their joint efforts resulted in a book PAYING LATIR fr,maEARN`NGS MADE WHILE entitled. "Your Tape Recorder: How to Use it, NAME GOD of it." How to Enjoy it. Hots. to Gel More Out ADDRESS This attractively illustrated book contains such CITY ST 'TE ZIP CIRE.... subject headings as: The Reproduction of Sound: L

JUNE-JULY, 1966 15 Bookmark Brt CATALOG NIA World's , "BEST BUYS" in GOV'T. SURPLUS Electronic Equipment

FULL OF TOP QUALITY ITEMS - Transmitters, Receivers, Power Supplies, Inverters, Microphones, Filters. Meters, Cable, Keyers, Phones, Antennas, Chokes. Dynamotors, Blowers, Switches, Test Equipment, Headsets, Amplifiers, Converters, Control Boxes, Indicators, Handsets, etc.. etc. SEND 254 (stamps or coin) for CATALOG and receive 50( CREDIT on your order. Address Dept. 31. 32 pages FAIR RADIO SALES Soft cover P.O. Box 1105 LIMA, OHIO 45802 Over 20 illus. $1.00

EARN BIG How a Tape Recorder Works; How Magnetic Tape Works; Types and Selection of Tape; Type MONEY! of Tape to Use; How to Record; Recording Speed; Recording Live; Using a Mixer; Wow; _biota Flutter; Superimposing; How to Splice; EDITaII Blocks and EDITabs; Personality in Speech; APPLIANCE Storage of Tape; plus suggestions on the numer- REPAIRING ous uses for tape recorders. Your Tape Recorder is Lear? at home in your spare sold for $1.00 through electrical time how to fix / appliances using Christy Elec- local Hi -Fi dealers or can be obtained directly gir,o and stores, from Elpa Marketing Industries, Inc., Dept. rewind motors,, how to get business, what FREE to charge. Make $5-6 per hour PUS, New Hyde Park, N. Y. in your kitchen, 80010 or basement. Operate your own fix -it shop. Pay later from earnings. RCA Does It Again. The newest RCA Receiv- Dopt.A-lill 21141 W YLawwrrenci Ave., Chicago 60625 ing Tube Manual, RC-24, continues as the most complete and authoritative reference in its field at its price. The new streamlined edition, more compact and easier to use than ever, provides up -to -date information on receiving tubes for home- entertainment applications, picture tubes for black -and -white and color television receivers, and voltage -regulator and voltage- reference SEA ANGLER tubes. In fact, it's the best vacuum tube reference manual the exaerimenter can buy. FOR INBOARD, OUTBOARD OR OUTDRIVE

BOATCRAFT PRINT #360. Save $1,000 or more ,n» while building this outstanding new performer. Here is the new look in hull design, a boat that RCS. adapts the principle of a soft riding planing bottom into a boat for building at home. SEA ANGLER RECEIVING TUBI can cut through waves from any quarter without MANUAL. pounding, porpoising, or losing steering control. Runners along the bottom raise the craft up onto high -speed plane without any sacrifice of outstanding sea -kindly qualities. 576 pages Soft cover e tits cw9e 7t011 Qt elntl BOATING JOURNAL RTV -789 Countless i//us. Craft Print Div., 505 Park Avenue, New York, N. Y. 10022 $1.25 Please send nie Craft hint Xu. 360, DEEP-V FICA ANGLER. I enclose $5. As in the previous edition, the Technical Data Allow 3 -4 weeks for 4th class delivery. 1st class delivery may be requested for an additional 5O . (Outside C.S.A. & Canada Section is restricted to detailed coverage of ac- add $1 for 1st class delivery.) tive receiving tube types. Definitive data on dis- NAME continued and replacement receiving types, on ADDRESS picture tubes, and on voltage -regulator and voltage- reference tubes are presented in tabular CITY charts for easy reference and comparison. STATE ZIP CODE All the other features which make the RCA N.Y.C. residents add 5 %. Receiving Tube Manual a perennial best seller

16 RADIO -TV EXPERIMENTER still remain: the well illustrated, easy-to- under- stand text chapters; the handy Application Guide NEW! SCR CAPACITIVE DISCHARGE for Receiving Tubes; the popular Circuits Sec- FUR Y)[l tion with its many timely and practical tube ap- ELECTRONIC AUTO IGNITION SYSTEM plications; and the many other aids which make the manual an indispensable tool for the use and understanding of receiving tubes. Copies of the new RCA Receiving Tube Man- ua! RC -24 may be obtained from radio parts distributors throughout the U. S. A., or by send- ing $1.25 to Commercial Engineering, RCA Electronic Components and Devices, Dept. RTVE, Harrison, New Jersey 07029. KKit or Assembled! t!,,,poolk.ireosig. SATISFACTION Irtra1 GUARANTEED! You've read all the ads - Heard r. all the claims - Now buy the VERY BEST. FURY XII costs a little more but we ADD QUALITY rather than CUT COST !H. FURY XII Kit $ 39.95 FURY XII Assembled $ 59.95 -2QI-7C?- MICRO -KITS, INC. 1900 Crest Drive, Eugene, Ore.

I ENCLOSE $39.95 for kit.

t` N -. SL..f.() L

TEST ALL RADIO and TV TUBES! The revolutionary new home tube tester that's Last, easy and accurate. Tests all radio and TV tube filaments, picture tubes, appliances, lamps, Sound of a Sunken Ship heaters, fans, etc. Full price including batteries, aboard a sal- $2.49 plus 25c for postage and _... Fathometer depth sounder handling. Complete instructions vage vessel graphed this view of sunken included. Fully guaranteed. liner SS Andrea Doria lying on her side in 216 feet of water off Nantucket, Massa- chusetts. Electronic view of wreck was Send certified made with a Raytheon depth sounder that cheque or sends out ultrasonic impulses and records money order to echoes bouncing off the bottom, obstruc- Hughie Enterprises, 363 Dieppe Street, Dept. RE tions, and passing fish. Various teams of London, Ontario, Canada would -be salvagers have been attracted to the site since the ship went dcwn on July 25, 1956. WIRELESS "MIKE" TALKS TO ALL RADIOS Now SUL 'l'Al.h- SING,., NAY .v., i 1,. '.,.lee, true NEW WIRELESS MIKE. Noeonneetion. of way kind-..ode Dr radio w .. Just touch bubon end talk while eating. Walking. ridin , etc. T «u .how real had houe. radios. Tramait,. po with n :ll,t.b.ltterar y. MCC /15oertifiedl Guaranteed to work -1 year warramlr- Sheeld lain for year.. ck aa.o..ea 'S Imam .e5 Send OnlyY $2.00 CGD' °'" a ued rates Ive delivery. Sent complete-readye- to porn FRoFREE Power Amplifier "Spud loi/ distance ahan il Wu order \r Available Neb,omfrom MIDWAY RADIO DeptdWRE S,

LEARN Engineering AT HOME Fix TV. design automation systems. learn transistors. coml.!, electronics. college level Ilome Study courses taught on you understand them. Earn more in the highly paid electronic, duetn'. Computer -. M thenr> and twatt leal. tits turns ni its et :issus graduates now en,plot cd. lit -Wept t lut,., at lid,-igo canlpu. If ...sin -,1 :..1 1.4 AMERICAN INSTITUTE OF ENGINEERING R TECHNOLOGY /Ir o ' o . West Fullerton Parkway Chicago, Illinois 60614 ~, 1139E

JUNE-JULY, 1966 17 DOES BUYING HI -FI COMPONENTS NEW PRODUCTS CONFUSE YOU? HIGH -FIDELITY It's no wonder with so many to choose from. Just which do you buy -which is really best AMATEVR RADIO for your home? If this is your problem, or if you just enjoy SHORT WAVE keeping up -to -date on the newest components available, the new Mid -Year 1966 edition of RECORDERS HI -FI BUYERS' GUIDE will be a most valuable companion. GIMMICKS You'll find a thorough and detailed section de- voted to test reports conducted by independent GADGETS laboratories. In this issue of HI -FI BUYERS' GUIDE, this objective testing organization has TOOLS reviewed high fidelity integrated stereo amplifiers (preamps and power amps on one chassis -both stereo solid state and vacuum tube models), high ETC. fidelity stereo phono cartridges and high fidelity stereo headphones. Each unit reviewed has been rated: Approved Not Approved There's a comprehensive feature on the best Power Supply methods of selecting a microphone for your tape Experimenters! Kick the power supply build- recorder. This is more than an expanded glos- ing habit with the new Precise Electronics regu- sary of terms; this article explains the various lated power supply. A compact 2 -in -1 instru- microphone types and how their characteristics ment providing variable regulated dc plate and and prices should be considered in light of the bias voltages, plus ac heater voltages. It has buyer's recording needs. separate dc meters for plate voltage and cur- There's a provocative article on Record Clubs; rent. another on the latest trends in "housing" high The Model 780 provides precise regulation fidelity components in furniture. There are 96 from 0 to 400 volts at high current, up to 150 highly informative pages which will aid you in milliamperes. It gives up 6 making your next high fidelity purchase an easy to amperes at 6.3 and fun-filled task. vac for operation of vacuum tube heaters. New safety and convenience features include a high voltage indicator, a separate regulated bias supply, and separate meters for voltage and current. The 780 sells for $99.95. For more information and complete specifications write to Precise Electronics, Designatronics Inc., Dept. DP -l. 76 East Second St., Mineola, L. I., New York 11501.

On sale NOW, $1.25

NI -FI BUYERS' GUIDE 505 Park Avenue, New York, RTV -789 N. Y. 10022 Please send me my copy of HI -FI BUYERS' GUIDE. Enclosed Is $1.50 (includes postage & handling).

Name (please print( Address

City State _Zip Precise Electronics Model 780 Regulated Power Supply

18 RADIO -TV EXPERIMENTER Reels on Wheels Over the Hump Martel Electronics has recently introduced their new Auto -Sonic stereo 603M Tape Deck IN THE JUNE ISSUE the first and only 4 -track cartridge tape deck for the auto that needs absolutely no installation. Its handsome and unusual design is cre- OF SCIENCE & MECHANICS, ated to fit over the hump on the floor of any car adjustable speakers can be raised and low- BEGIN THE FIRST OF AN

ABSOLUTELY FANTASTIC

SERIES OF DOCUMENTED

ARTICLES ON THE

"MANNED" SOVIET

SPACE FLIGHTS THAT

WERE NEVER MANNED!

Martel Electronics 603M Tape Deck

Bred. The 603M plugs directly into the ciga- rette lighter. A twenty -five foot extension cord permits portability and convenience. It not only plays in the car. but can be carried onto the beach, boat, or patio. An AC converter is available which enables the user to listen to tapes at home or at office as well. The Auto -Sonic 603M by Martel is the first to offer all these features as well as over 10,000 musical selections to choose from. If preferred, the 603M can he permanently attached under the dash. For more information on the first car stereo tape deck that needs no installation, write to Martel Elec- "My contention is that the Soviet Union uses its tronics, Dept. DP -1, 2356 S. Cotner, W. Los real -and often very crude -achievements in space Angeles. California. research as a springboard for spectacular hoaxes. Foremost among these hoaxes is their manned It's the Nuts spaceflight program. The status of their technology shaft nut - Color coded, solid and hollow cannot support a man -in -space program at this time. by Xcelite Incorporated drivers manufactured Nor have they ever actually documented one of are now being offered in new sets which feature their manned spaceflights beyond a question of handy, pebble -grain plastic cases for keeping doubt. How do I know this? SCIENCE & MECHANICS the tools in good order on the workbench and assigned me to the job of unearthing this and many other phony qualities inherent in flights of the Russian manned space ships." So begins space expert Lloyd Mallan's sensational expose of "The Russian Spacemen Who Weren't There."

Don't miss this first of 3 provocative AND documented articles in the June issue of SCIENCE & MECHANICS, now on sale at your newsstand.

SCIENCE & MECHANICS MAGAZINE 505 Park Avenue New York N. Y. 10022 Xcelite HS6 -18 (lett) and 77 (Right) Color Coded Nutdriver Sets

JUNE -JULY, 1966 19 NEW PRODVCTS

on service calls. Snap -lock lids shut tight to protect tools from scattering. Exceptionally compact, the kits fit neatly in a tool box. The LIGHT UP solid shaft set can also be hung on a wall by means of a hole in the lid of the case. Molded compartments keep tools from tumbling out. Set No. 77 contains seven solid shaft nut - drivers with hex openings from o" thru 3/s ". In the May /June issue of ELEMENTARY ELEC- Set No. HS6 -18 contains ten hollow shaft nut - TRONICS, now at your newsstand -75C -read drivers with hex openings from a;í1;" thru 1316 ". the fascinating article "What's New In Light- Nutdrivers are of professional quality and have ing." This feature lights up the latest technical precision fit, case -hardened sockets; polished advances in the field of illumination, along with and plated steel shafts; and shockproof, break - night- some brilliant ideas on improving your proof. plastic (UL) handles. time see -ability. Complete information is obtainable by re- Make sure you receive this fascinating publica- questing Form S865 from Xcelite Incorporated. the coupon to subscribe. tion -use Dept. DP -1, Orchard Park, N. Y. Can't wait? Then drop in on your local radio replacement ELEMENTARY ELECTRONICS/ RTV -789 505 Park Avenue /New York, N. Y./10022 parts dealer and ask him to show you Xcelite's I am enclosing $4.00 for 1 yr.; ¿ $7.00 for 2 yrs.; Sets No. 77 and No. H 56 -18. CJ $10.00 for 3 yrs. Please begin my subscription to ELEMENTARY ELECTRONICS. ( outside USA & Canada, add 75C Dictate on the Run a yr.) The new portable StenOtape Dictating Ma- chine G -540 may be three ways Name operated -on (please print) "C" batteries, on a 12 volt DC auto battery or from the normal (105 to 240 volts, Address AC current 50 or 60 cycles). Change -over from one power source to another is adapter City State Zip automatic. No AC is needed.

WHAT MAKES RADIO -TV EXPERIMENTER SUCH FASCINATING READING ?

It's just that in this period of time, electronics has progressed to such a fine art, that it appears in almost every phase of our existence. Subtle at times, overpowering at other times, but certainly we are living in an era where a knowledge of electronics is basic.

And that's what makes RADIO -TV EXPERIMENTER so in- American Geloso StenOtape Dictating Machine teresting. It covers the field, whether it be theory, construction; G -540 hi -fi or audio; ham, CB, SWL; AM, FM, TV, or so many of the other related electronics subjects. It covers them, reports them, A magnetic tape unit. the StenOtape G -540, describes them, illustrates them; RADIO -TV EXPERIMENT- may also be used for transcribing and confer- ER is certain to contain that subject of electronics which is ence recording. It operates two hours on one most Important to you ... that's why it's so fascinating. Try it self -loading reel of tape. Remote control micro- and see: phone starts and stops the tape. Complete controls are available for dictating, stop, review, i Ar,ut -r\ I. \1'I RIMI.NfER Rn- nii transcribing, fast rewind and fast forward. One :O5 Part. A,rnue / New York. N. Y. , 10022 l'm Convinced that RADIO -TV EXPERIMENTER is for me. very important note, the StenOtape G -540 is Begirt my subscript ion immediately. 1 am enclosing r7 $4.00 compatible with all capston drive, reel to reel, for 1 r.: $7.00 for 2 yrs.: $10.00 for 3 yra. Bill nn. idutside USA and Canada, add 75C n yr./ magnetic tape machines. Small in sise -the unit sighs only 6 lbs. and list'. for ' I48.5(1 complete sLith carrying case,

shoulder strap. t 'mote microphone. tape and -- - - I batteries. A side saniety of accessories, includ- LbLe Zip I L ing a foot pedal, dynamic lavalicr microphone,

RADIO -TV EXPERIMENTER Details telephone pick up, etc. are available. TAPE THIS AD TO THE BACK OF YOUR TV SET and literature may be secured from StenOtape Div., American Geloso Electronics, Inc., Dept. DP -1, 251 Park Avenue South, New York, New ALL TV-RADIO York 10010. RECEIVING TUBES All Brand New, all at a flat discount price of only

SSB /CW Ham Xmitter. No exceptions . . . all tubes S3, regardless et list . Hallicrafters new amateur band transmitter Virtually all type, available. - ncluding the new color tubes. employing advanced single- conversion signal All Tubes 1st QUALITY I AN- ea path circuitry puts out 180 watts PEP input on All Sold on Written SSB and 150 watts on CW. Designed as a com- 24 -MONTH WARRANTY j All orders SHIPPED 1st panion to the company's previously announced CLASS SAME DAY REC'D.! SX -146 receiver, the HT -46 may be worked in- Order replacements for your defective tubea e, a flat $1.00 ach, plus 50c postage and hand / in for our entire order. Address Dent ,RTE -676. dependently or inter -connected with the SX -146 for transceive operation. UNIVERSAL TUBE CO. Ozone Park, N. V. 11417

FRANCHISE OPPORTUNITY- Universal Tube Ce. can at you up n your own highly-profitable business as s Electron Tube Distributor, with an exclusive territory. selling to appliance dealers and /or servicemen. For lull details write Imme- diately to Franchise Manager, address above.

TRANSISTORIZED CONVERTER KITS $5.00 EACH Three kits available. Marine 2 -3 mc, police & fire, high band 100 -200 mc, low band 26.60 mc. . 1 mc t g on car radio. Full instructions. ANY KIT $5.00 pp. WIRED $15.00 pp. HT -46 Hallicrafters Model Amateur Transmitter MESHNA 19B ALLERTON LYNN, MASS. 01904

The HT -46 is all -new from the chassis up. Frequency coverage is 3.5 -4.0, 7.0 -7.5, 14.0- ALL BAND TRAP ANTENNA ! 14.5, 21.0 -21.5 mc and 28 -30 mc in four 500 kc steps. A crystal is provided for 28.5 -29.0 mc r/ Reduces In and Fer ALL Amateur 10 meter are optional. Noise on All Makes Short Wave mitten. Guaranteed for 500 coverage. Other crystals Receivers- Makes World-Wilde Matts Power. Light. Neat. in designed Rewptlen Stroner. ('umpl to t'gt. Housed a compact, cleanly cabinet. with ati ft. 71 ohm tcedlinr. leelnl resonant trap.. For noels and all class radio amateurs! Elimimae. 5 separate antennae with better performume uaranteed. 1 the HT -46 measures 5T/e "H x 131/8"W x l "D. x144p-20-I5 -10 meter band.. Complete 1119 /t. S1S.SS. 40-3Ú -15-111 ineter band., 04 fi. tha1 for world -wid abort wave reception/ 514A11. Sand only 53.0e lesh. rk.. It has a 9 mc quartz filter for upper or lower noel MO! pay postman alame COI) Wu. poetise, en arrival w .end lull price for poet - adeliv . I'omtdrtr i uclloo. Included) sideband. It features grid block keying for CW, (MidwayeA Dept. ARE -6 Kearney, Nebraska and push -to -talk operation with provision for optional plug -in VOX. Solid state circuitry is used in the self- contained power supply. Un- SCIENCE wanted sideband and carrier suppression are EXPERIMENTER rated at better than 50 db. A full complement of front panel controls is conveniently grouped for ease of operation. They include: band selector, frequency tuning, driver tuning, dial calibration, microphone gain, carrier level, a MA -HFO meter, and all mode controls for USB, LSB, and CW -Tune operation. A key jack, antenna jack, VOX accessory socket, and receiver input for transceive operation are located on the rear apron. Amateur net price of the HT -46 is $349.95. The accessory HA -16 VOX adapter has an amateur net price of $37.95. Complete specifi- SCIENCE EXPERIMENTER cations may be obtained by writing to The in- Hallicrafters Co., Dept. DP -1, 5th & Kostner The magazine dedicated to the youth who is Avenues, Chicago, Illinois 60624. terested in experimentation, construction and "blue -ribbon" Science Fair entries. DC to 6 Mc. Solid -State Scope A new 3 -inch completely solid -state DC to 6 mc. oscilloscope that weighs only 16 lbs., ON SALE AT YOUR NEWSSTAND -7g uses less than 15 watts of power, has cali-

JUNE -JULY, 1966 21 PRODVCTS from Allied Electronics Corp., Dept. JR, 100 NEW N. Western, Chicago, Ill. 60680.

braced vertical sensitivity, calibrated sweep Automatic Voice -Control Recorder is now available times and triggered sweep A new voice -operated automatic "Sound model from Allied Electronics. The Knight Camera" has been added to the Concord line -5005 the latest addition to KN Scope, of "Sound Camera" portable, battery-oper- brand line of instruments, is Allied's private ated tape recorders. Using the Concord modern -day testing designed to meet every VM -10 voice -control microphone, the new It is priced at $425.00. requirement. Model F -88 starts when it picks up sound and stops when the sound stops. The F -88 is Concord's latest extension of its emphasis on "Take- anywhere" portables.

Knight KN -5005 Solid -State Oscilloscope Concord VM -10 Voice -Control Microphone Specifications for the vertical sweep system are: Sensitivity: .05 v /division Linear Only 5" x 7" x 3 ", the miniaturized unit over 8 divisions (2 "). Frequency: compen- weighs just two pounds. Because it is dual sated attenuator; ten steps (X1 to X1000 track, the F -88 permits an hour's play on a attenuation). .05v to 50v /division: 3% single reel of tape. Precision operation is accuracy. DC response: DC to 3 mc. at 4 achieved through use of a capstan -drive tape divisions amplitude: DC to 6 mc. ± 3 db. at transport mechanism, as well as a governor - 2 divisions; useful to 12 mc. AC response: controlled, servo-type DC drive motor and 10 cps to 3 mc. at 4 divisions amplitude; :10 Concord's flux -field head for improved fre- cps to mc. at 2 divisions; useful to 12 mc. quency response at low tape speeds. Rise time: .075 m.sec at 2 divisions ampli- The F -88 "Sound Camera" may also be tude; .1 m.sec at 4 divisions. operated manually by pushbuttons or remote -. Specs on the horizontal system are: Sweep control on microphone if voice operation is

speeds: 1 m.sec division to 100 m.sec /divi- not desired. Other features include record - sion in 6 steps (18 steps to 500 m.sec used level and battery-level indication, extension with X1, X2, and X5 multipliers). Accurate speaker jack, AC- adapter jack, and optional within 3%. 1 m.sec to 50 m.sec /division; direct recording from radio, TV or record ! 10 %. 100 -500 sec. Continuously variable player. uncalibrated sweep speeds over above range. Specifications include-recording time: - Multiplier (X5) increase sweep rate to 0.2 1 hour on a single reel of tape (triple play). m.sec di% ision. Recording Speed: - Standard 1 %s IPS re- Trigger Modes specs are: Free run, plus cording speed. Power Source: - Four positive and negative internal and (adjust- standard flashlight batteries Isize "C "). Bat- able trigger level) external slope. Stable tery Life: - Approximately 12 hours. Di- automatic sweep -when in trigger mode. mensions: -7" x 5" x 3 ". Weight: - 2 trace is definitely triggered at the slope and pounds. level set; cannot stop sweeping or free run. Price of the F -88 is under $80.00. More Delay between signal reaching trigger level information is available from Concord Elec- and start of sweep is about .75 microsec. tronics Corporation, 1935 Armacost Avenue, Additional information may be obtained Los Angeles, California 90025.

22 RADIO -T'' EXPFRi1tiNTLR Cheap Tester Over five years ago I built a tester using 0 the circuit shown in the diagram. I have since lL forgotten what the instrument is called. I find that I can test a capacitor by connecting the red and black test leads to it. If the neon lamp flashes only once, the capacitor is O.K. But, what is the green lead for? (See diagram A below.) -H. H., Menasha, Wis. It is a combination continuity and capacitor tester. It looks like it is hooked up ASK ME ANOTHER wrong. If you rewire it as shown in diagram B (below), it will work as a capacitor RADIO-TV EXPERIMENTER and continuity tester using the red and 505 PARK AVENVE green test leads. You will also have a small NEW YORK, N.Y. 10022 DC power supply (about 150 volts) using the red and black leads. Resistor RI, shunted across filter capacitor C stabilizes the voltage and bleeds off the charge in C when the AC plug is disconnected.

R.!

RADIO -TV EXPERIMENTER brings the know - how of electronics experts to its readers. If you have any questions to ask of this reader - service column, just type it on the back of a 4e postal card and send it to "Ask Me An- other," RADIO -TV EXPERIMENTER, 505 Park Avenue. New York, New York 10022. The experts will try to answer your questions in the available space in upcoming issues.

Sorry, the experts will be unable to answer BLACK your questions by mail.

GREEN

UHF -TV: Channels 14 to 83 There is a new TV station on the air here, Channel 47. My TV set's channel selector indicates only channels 2 through 13. How can I tune in Channel 47? -B. B., Flushing, N'. Y. 160 -mc Aero Bander Channel 47 is in the UHF television band How can 1 adapt the Aero Bander de- where there are many unused channels. All scribed in the December-January issue of new TV sets are now required by law to be RADIO -TV EXPERIMENTER for tuning in 152 capable of tuning in all VHF and UHF tele- to 162 -mc band stations? vision stations. To tune in UHF stations with -L. N., Seahurst, Wash. an older TV set you need a UHF converter. Use fewer turns on L2 and L4. With C2 They cost as little as $15.95 at Lafayette set at maximum capacitance, adjust L2 turns stores in the New York City area. Try Allen and turn spacing so that they resonate at Electronics or other radio parts stores in 152 mc as checked with a dip meter. With Flushing. When you use a converter with C7 set at maximum capacitance, adjust L4 your old TV set, you'll then have a choice turns and turn spacing so that they resonate of nine stations in both hands, including at 70.6 mc, also as checked with a dip meter. Channel 31 which is operated by the City of To receive FM signals, adjust C7 slightly off New York. frequency so that slope detection results.

JUNE -JULY, 1966 23 Ask Me Another 80 -meter Problem How can I convert my shortwave set so I can tune in the 80 -meter band? It now tunes from 6 me to 18 mc. More Power -D. C. G., Greensboro, N. C. To drive a PM dynamic extension speaker, Add turns to the coils. You will need amplifier using the I built a one -transistor about twice as much inductance. You can The only circuit shown in the diagram. get ready made coils such as the Miller 4406 turn problem is that it overloads when I up which can be adjusted to vary its inductance the volume. What substitutions or tnodifi- from 6.7 to 15 microhenries. Of course, you fications can cure this? will limit the tuning range at the high end Md. -S. G., Chevy Chase, when you change the coils. Your .amplier (A) is obviously incapable of handling sufficient power, particularly Field Coils are Out when using only a 1.5 -volt battery. You need an amplifier with a considerably higher A radio I have has a field coil speaker. Is power output rating. The second circuit (B) there any way I can replace it with a PM shown here should work considerably better. dynamic speaker? -D. S., Hanover, Pa. 2N408 Use a filter choke in place of a low- resistance field coil, connected as shown in INPUT OUTPUT the diagram. The filter -choke inductance .02MF 220K value is not critical, but it must be able to handle the receiver's total plate current. A Stancor C-1002, for example, is rated at 15 A 15V henries and 75 milliamperes. Some sets used a high- resistance (5K to 10K ohms) ARGONNE AR -119 field coil in parallel to the B -plus supply. OR EQUAL 2N241Á It is generally not necessary to substitute a filter choke for this inductance. Many old INPUT auto radios do not need the choke either - it will only use extra battery current since it is connected in parallel to the filaments.

B OUTPUT TRANSFORMER PM SPEAKER

TV DX? SPEAKER I would like to pick up TV stations some 200 miles away. Is there any antenna on the HUM -BUCK COIL "YYYYY` market capable of doing this? If so, what is FIELD the manufacturer's name? x COIL -W. B. M., Richmond, Ind. x The Winegard Model C -44 is rated at up to 175 miles range. When used with a 30-db RECTIFIER FILTER CHOKE (gain) antenna amplifier, and when sup- TUBE ported on a mast high enough, it might just do the trick. BCB Frequency Meter How can I get information on a tuning me- Use a Sky Wire ter that reads Kilocycles in the AM broad- I have a portable transistor radio which cast band? employs 12 transistors and 5 diodes. How -S. H., Stillwater, Minn. can I improve its long distance, shortwave You can use a BC -221 frequency meter. capability? They are available at military surplus stores -.1. T., Muskegon, Mich. for around $100. Or, get a calibrated dip Connect an outdoor antenna to its whip meter. antenna. (Continued on page 28)

24 RADIO -TV EXPFRIME \TER SEND CARD FOR RCA'S NEW 1966 HOME STUDY CAREER BOOK TODAY

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Find out about RCA Institutes Career Programs. Learn about the amazing ' Autotext" programmed instruction method- the easier way to learn. Get the facts about tre prime quality kits you get at no extra cost. Read about RCA Institutes' Liberal Tuition Plan -the most economical way for you to learn electronics now. Discover how RCA Institutes Home Training has helped its students enter profitable electronic careers. Lots more helpful and interesting facts too! Send postage -paid card for your FREE copy now. Nc. obligation. No salesman will call.

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JUNE -JULY, 1966 27 Ask Me Another transmission line, the shield should go to the center "A" connection. Continued from page 24 4.5 -volt DC Supply Grounded Will you give me a diagram of a 4.5 -volt 1 have a shortwave receiver and a 40-meter DC power supply to replace three "D" cells? band dipole antenna, connected as shown -D. R. T., Mayo, Florida in the diagram. AM broadcast stations cover You can use a 6.3 -volt filament trans- the entire 160 -meter band, except when I former and four 750-ma silicon diodes in a disconnect the ground. Is there anyway I full -wave bridge circuit, as shown in the can eliminate the BC1 without removing the diagram. The value of the filter resistor (R), ground. depends upon the current drain and it affects the output voltage. Try values from 5 to 100 DIPOLE ohms.

1 GROUND RECEIVER TERMINALS TRANSMISSION LINE O O O G A A

DIPOLE Regen Receiver DPDT KNIFE TRANSMISSION Can you give me a diagram for a one -tube, LINE SWITCH AC- powered radio? -B. W., Petrolia, Ont. The circuit diagram (bottom of page) is of a regenerative receiver. Coils L1 and L2 RECEIVER TERMINALS can be a Superex No. 11 loopstick, tuned A by a 365 mmf capacitor. The regeneration - GROUND control (C2A, C2B) is a two -gang 365 mmf -R. A., Butte, Mont. tuning capacitor with the stators paralleled. To keep cost low, only a filament trans- You've got the antenna hooked up wrong. former (T2) is used in the power supply. Connect the dipole transmission line to the Lamps I1 through I4 are GE 1819 28 -volt "A" and "A" terminal, and remove the pilot lamps (which fit an S. C. bayonet shorting bar. Or, if you want more pick up socket) function as a voltage divider. The on bands other than 40- meter, you can add output transformer (Ti) can be one of the a switch, as shown in the diagram, which universal type so you can use low impedance will enable you to use the dipole as a "T" earphones (8 ohms). Lamp I5 is a neon antenna. If you have been using coaxial bulb which should not light when the set is

EXTERNAL GROUND

28 RADIO -TV EXPERIMENTER I.SK .25MF and tune the receiver until ( v PHONES you pick up your transmitter's 500M M F L signal. You'll hear a whistle TOOIMF J SEC. which is equal to your trans- -.001MF/ PRI INTERSTAGE mitter frequency plus or AUDIO TRANSFORMER minus the monitor's frequency, when the regeneration REGENERATION CONTROL control of the code monitor is advanced just beyond the 50K 40MF point where is starts to os- 1 cillate. 4.7K 40MF A 6.3V A Simple FM Transmitter DI Can you give me a circuit for a simple FM transmitter for use as a wireless microphone? -A. M., Santa Barbara, Calif. A combination pentode -triode 6EA8 tube .OSMF - can be used. The triode operates as a Hartley oscillator and the pentode as a reactance modulator. See below. Circuit values are shown except for the tank coil. This can be Eico Part Number 36051 available for plugged in and connected to a ground. $1.74 from Eico Electronic Instrument Co., Reverse the AC plug prongs so the lamp Inc., Flushing, N. Y. 11352. Perhaps your does not light. Keep the regeneration con- Eico distributor can order one for you. trol so that the circuit won't oscillate and ,Using the coil, the oscillator operates at cause interference. The set will be most sensi- around 100 mc. tive just below the point where oscillation Under Part 15 rules, only a type ap- begins. proved FM transmitter can be used without a station license. For wireless operation, Brass Pounder's Tin Ear a short piece of wire will suffice as an an- How can I build a code monitor for my tenna, connected to one end of L2 with the CW transmitter? other end of L2 grounded to the chassis. -C. C. S., Valdosta, Ga. To use it legally, connect a 62-ohm resistor You could build a tone generator and across L2 and feed each side of L2 through key it at the same time as you key the trans- a 125 -ohm resistor to the 300 -ohm antenna mitter, but you would not be hearing your terminals of the FM receiver. actual signal. Instead, build a regenerative The same circuit can be used as a low - receiver using a circuit like the one shown power FM transmitter in the 2 -meter or 6- above. Put it in a metal box so it won't meter ham band by using a coil that will tune radiate. Use plug -in coils to cover the vari- to the band. Since it is not crystal controlled, ous bands. Place it near your transmitter it cannot be used by a novice ham.

FM RECEIVER 4MT ANTENNA - 001MF TERMINALS AUDIO INPUT FROM MICROPHONE PRE- 12pHT ,470MMF 125n AMPLIFIER OR PHONO PICK -UP 68A 6.2 } H 100 125n MMF IOOMMF EICO 36051 01 22K MF IMEG

JUNE-JULY, 1966 29 ILLiterature Library Numbers in heavy type indicate advertisers in this issue. Consult their ads for additional information.

ELECTRONIC PARTS 75. Transistors Unlimited has a 32. "Everybody's Tape Recording brand new catalog listing hundreds Handbook' is the title of a booklet 1. This catalog is so widely used as of parts at exceptionally low prices. that Sarkes -Tarzian will send you. a reference book, that it's regarded Don't miss these bargains! It's 24 -pages jam -packed with info for as a standard by people in the elec- the home recording enthusiast. In- tronics industry. Don't you have the HI-FI/AUDIO cludes a valuable table of recording latest Allied Radio catalog? 1 he sur- times for various tapes. prising thing is that it's free' 15. A name well -known in audio 33. Become the first to learn about circles is Acoustic Research. Here's 2. The 1966 Norelco's complete Carry- Corder 150 new 510 -page edition of its booklet on the famous AR speak- portable tape recorder outfit. Four- Lafayette Radio's multi -colored cata- ers and the new AR turntable. log color booklet describes this new car- is a perfect buyer's guide for hi- tridge -tape unit. fi'ers, experimenters, kit builders, 16. Garrard has prepared a 32 -page CB'ers and hams. Get your free copy. booklet on its full line of automatic 34. The 1966 line of Sony tape re- today! turntables including the Lab 80, the corders, microphones and accessories first automatic transcription turntable. is illustrated in a new 16 -page full 4. We'll exert our influence to get Accessories are detailed too. color booklet just released by Super- you on the Olson mailing list. This scope, Inc., exclusive U.S. distributor. catalog comes out regularly with lots 17. Build your own bass reflex en- of new and surplus items. If you find closures from fool -proof plans offered 35. If you are a serious tape audio- your name hidden in the pages. you by Electro- Voice. At the same time phile, you will be interested in the win S5 in free merchandise! get the specs on EV's solid -state hi -fi new Viking of Minneapolis line-they line -a new pace setter for the audio carry both reel and cartridge re- 5. Unusual scientific, optical and industry. corders you should know about. mathematical values. That's what Ed- mund Scientific has. War surplus 19. Empire Scientific's new 8 -page, 91. Sound begins and ends with a equipment as well as many other full color catalog is now available to Uher tape recorder. Write for this hard -to-get items are included in this our readers. Don't miss the sparkling new 20 page catalog showing the en- new 148 -page catalog. decorating -with -sound ideas. Just cir- tire line of Uher recorders and acces- cle #19. sories. How to synchronize your slide 6. Bargains galore, that's what's in projector, execute sound on sound, store! Poly -Paks Co. will send you 22. A wide variety of loudspeakers and many other exclusive features. their latest eight and enclosures from Utah Electronics -page flyer listing the lists sizes shapes and prices. All latest in merchandise available, in- HI -FI ACCESSORIES cluding a giant SI special sale. types are covered in this heavily illustrated brochure. 76. A new voice- activated tape re- 7. Whether you buy surplus or new, 24. Need a hi -fi or PA mike? Uni- corder switch is now available from you will be interested in Fair Radio versity Sound has an interesting mi- Kinematix. Send for information on Sales Co.'s latest catalog -chuck full crophone booklet audio fans should this and other exciting products. of buys for every experimenter. read before making a purchase. 39. A 12 -page catalog describing the 8. Want a colorful catalog of 26. Always a leader, H. H. Scott audio accessories that make hi -fi liv- goodies? John Meshna, Jr. has one introduces a new concept in stereo ing a bit easier is yours from Switch - that covers everything from assemblies console catalogs. "At Home With craft, Inc. The cables, mike mixers, to zener diodes. Listed are govern- Stereo" the 1966 guide, offers deco- and junctions are essentials! ment surplus radio, radar, parts, etc. rating ideas, a complete explanation All at unbelievable prices. of the more technical aspects of stereo 98. Swinging to hi -fi stereo head- consoles, and, of course, the complete sets? Then get your copy of Superex 10. Burstein -Applebee offers a new new line of Scott consoles. Electronics' 16 -page catalog featuring giant catalog containing 100's of big a large selection of quality headsets. pages crammed with savings includ- 27. An assortment of high fidelity ing hundreds of bargains on hi -fi kits. components and cabinets are described 104. You can't hear FM stereo un- power tools, tubes, and parts. in the Sherwood brochure. The cab- less your FM antenna can pull 'em in. inets can almost be designed to your Learn more and discover what's avail- I1. Now available from EDI (Elec- requirements, as they use modules. able from Finco's 6 -pager "Third Di- tronic Distributors, Inc.) a catalog mensional Sound." containing hundreds of electronic 95. Confused about stereo? Want to items. EDI will be happy to place you beat the high cost of hi -fi without KITS on their mailing list. compromising on the results? Then you need the new 24 -page catalog by 41. Here's a firm that makes every- Jensen Manufacturing. thing from TV kits to a complete line 12. VHF listeners will want the of test equipment. Conar would like latest catalog from Kuhn Electronics, to send you their latest catalog All types and forms of complete re- 99. Interested in learning about am- -just ceivers and converters. plifier specifications as well as what's ask for it. available in kit and wired form from 42. Here's a colorful 108 -page cata- 23. No electronics bargain hunter Acoustech? Then get your copy of Acoustech's 8 -page colorful brochure. log containing a wide assortment of should be caught without the latest electronic kits. You'll find something copy of Radio Shack's catalog. Some for any interest, any budget. And equipment and kit offers are so low, TAPE RECORDERS AND TAPE Heath Co. will happily send you a they look like mis- prints. Buying is copy. believing. 31. "All the Facts" about Concord Electronics Corporation tape record- 44. A new short-form catalog (pock- 25. Unusual surplus and new equip- ers are yours for the asking in a free et size) is yours for the asking from ment /parts are riced "way down" in booklet. Portable battery operated EICO. Includes hi -fi, test gear, CB a 32 -page flyer from Edlie Electronics. to four- track, fully transistorized rigs and amateur equipment-many Get one. stereos cover every recording need. kits are solid -state projects.

30 RADIO -TV EXPERIMENTER AMATEUR RADIO 102. Sentry Mfg. Co. has some inter- ELECTRONIC PRODUCTS esting poop sheets on speech clippers, 46. A long-time builder of ham converters, talk power kits and the equipment, Hallicra/ters will send you like for interested CB'ers, hams and 66. Try instant lettering to mark lots of info on the ham. CB and com- SWL'ers, too. control panels and component parts. mercial radio-equipment. Datak's booklets and sample show 103. Squire- Sanders would like you this easy dry transfer method. CB- BUSINESS RADIO to know about their CB transceivers, SHORT -WAVE RADIO the "23'er" and the new "S5S." Also, CB accessories that add versatility to 64. If you can use 117 -volts, 60 -cycle 48. Hy- Gain's new CB antenna cata- their 5-watters. power where no power is available, log is packed full of useful informa- the Terado Corp. Tray- Electric 50 -160 tion and product data that every is for you. Specifications are for the SCHOOLS CB'er should know about. Get a AND EDUCATIONAL asking. copy. 3. Get all the facts on Progressive 49. Want to see the latest in com- Edu -Kits Home Radio Course. Build 67. "Get the most measurement munication receivers? National Ra- 20 radio and electronic circuits - value per dollar." says Electronics dio Co. puts out a line of mighty fine parts and instructions come with Measurements Corp. Send for their ones and their catalog will tell you all course. catalog and find out how! about them. 105. Get the low -down on the latest 50. Are you getting all you can from in educational electronic kits from 92. How about installing a transis- your Citizens Band radio equipment? Trans -Tek. Build light dimmers, torized electronic ignition system in Amphenol Cadre Industries has a amplifiers, metronomes, and many your current car? AEC Laboratories booklet that answers lots of the ques- more. Trans -Tek helps you to learn will mail their brochure giving you tions you may have. while building. specifications, schematics. 100. You can get increased CB range 56. Batley Institute of Technology offers courses in electronics, basic and clarity using the "Cobra" trans- TELEVISION ceiver with speech compressor-re- electricity and drafting as well as receiver sensitivity is excellent. Catalog frigeration. More information in their sheet will be mailed by B &K Division informative pamphlet. 70. Heath Co. now has a 19" and of Dynascan Corporation. 25" rectangular-tube color TV kit in 59. For a complete rundown on cur- addition to their highly successful 21" lesson and de- 54. A catalog for CB'ers, hams and riculum, outlines, full model. Both sets can be installed in experimenters, val- tails from a leading electronic school. with outstanding a wall or cabinet: both are money- ues. Terrific buys on Grove Electron- ask for this brochure from the Indiana saving musts! ics' antennas, mikes and accessories. Home Study Institute. 90. If two-way radio is your meat, 61. ICS (International Correspond- 73. Attention, TV servicemen! Barry send for Pearce -Simpson's new book- ence Schools) offers 236 courses in- Electronics "Green Sheet" lists many let! Its 18 pages cover equipment cluding many in the fields of radio, TV tube, parts, and equipment buys selection, license application, prin- TV, and electronics. Send for free worth while examining. Good values, ciples of two-way communications, booklet "It's Your Future." sensible prices. reception, and installation. 74. How to get an F.C.C. license. 93, Heath Co. has a new 23- channel plus a description of the complete 72. Get your 1966 catalog of Cisin's all- transistor 5 -watt CB rig at the electronic courses offered by Cleve- TV, radio, and hi -fi service books. lowest cost on the market, plus a full land Institute of Electronics are in Bonus -TV tube substitution guide line of CB gear. See their new 10- their free catalog. and trouble -chaser chart is yours for band AM /FM /Shortwave portable the asking. and line of shortwave radios. #93 94. Intercontinental Electronics on the coupon. School offers three great courses: stereo radio & electronics; basic elec- 29. Install your own TV or FM an- 96. if a rugged low -cost business/ tricity; transistors. They are all de- tenna! Jefferson- King's exclusive free industrial two-way radio is what scribed in Inesco's 1966, 16-page booklet reveals secrets of installation, you've been looking for. Be sure to booklet. orientation; how to get TV -FM trans- send for the brochure on E. F. John- mission data. son Co.'s brand new Messenger "202." TOOLS 101. If it's a CB product, chances 78. Scrulos square recess screws 97. Interesting, helpful brochures de- are International Crystal has it listed pose no problems for the serviceman scribing the TV antenna discovery in their colorful catalog. Whether kit who carries either of Xcelite's two of the decade -the log periodic an- or wired, accessory or test gear, this new compact Scrulox screwdriver sets tenna for UHF and UHF -TV, and CB oriented company can be relied on in his pocket or toolbox. Bulletin FM stereo. From JFD Electronics to fill the bill. N 1065 has the details. Corporation.

Radio -TV Experimenter, Dept. LL -89 505 Park Avenue, New York, N. Y. 10022 I I am o subscriber Please arrange to have the literature whose numbers I Indicate total number have encircled sent to me as soon as possible. I am en- of booklets requested closing 250 (no stamps) to cover handling charges.

1 2 3 4 5 6 7 8 10 11 12 15 16

Be 19 22 23 24 25 26 27 29 31 32 33 34 35

Sure To 39 41 42 44 46 48 49 50 54 56 59 61 64 Enclose 66 67 70 72 73 74 75 76 78 90 91 92 93 25$ 94 95 96 97 98 99 100 101 102 103 104 105

NAME (Print clearly)

ADDRESS

CITY STATE ZIP CODE

JUNE -JULY, 1966 31 Over -Engineered & Under- Priced !

This New HEATHKIfSoIid -State FM Stereo Receiver Has 5 uy Sensitivity, 30 Watts Music Power, And Costs Just $99.95*

THE AR -14 AT A GLANCE! You Build It Yourself in about 20 hours ... thus labor costs are eliminated. And building it is half the fun. Advanced 31 transistor, 11 diode circuit Wide - Takes no special skills or knowledge. The tuner "front - band FM stereo tuner, plus two preamplifiers and end" is already preassembled. Simple step -by -step in- two power amplifiers 11 db from 15- 50,000 cps structions and large pictorials show you exactly what at 30 watts IHF music power, 20 watts RMS Handles to do and how to do it. Nothing is left to chance. Get your records and tapes, stereo or mono; 4, 8 & 16 full AR -I4 details in the FREE Heathkit Catalog. ohm speakers Phase control for 45 db or better Kit AR -14, 17 lbs., less cabinet $99.95 separation Front panel headphone jack Bookshelf AE -55, 6 lbs. walnut veneer cabinet $9.95 size ... 31/4" H. x 151/4" W. x 12" D. Installs in AE -65, 6 lbs...beige steel cabinet $3.95 wall, custom or either Heath cabinet Also Available As Stereo Separates! HOW CAN WE DO IT? Judging from the high prices on other stereo receivers, you may have a few doubts about a receiver that sells for only $99.95. Don't have. Here's why: Famous Heath Know -How has been responsible for the best value in hi -fi since 1949. Our audio engineers use Kit A1-14, FM /FMX Tuner, 6 lbs $49.95* the latest, most sophisticated techniques in the "state Walnut cab. $7.95, metal cab. $3.50. 4 lbs. of the art." And each new design must survive several stages of rigid performance testing ... your assurance that every Heathkit is specification guaranteed. But don't take our word for it. Compare specifications. Read the reviews by hi -fi editors. Ask any Heathkit owner. You Buy Direct From The Factory ... no middleman expenses to add to the price. We offer more service than many dealers ... liberal credit, advice on product selec- Kit AA -14, 30 -Watt Amplifier, 11 lbs $59.95* tion, and complete servicing. You shop in the comfort Walnut cab. $7.95, metal cab. $3.50. 4 lbs. of your home, and get delivery right to your front door. *less cabinet

I Heath Company. Dept. 19.6 FREE! Benton Harbor, Michigan 49022 World's Largest Enclosed Is $ plus shipping. Kit Catalog! Please send model (s) 108 pages! Over 250 [1 Please send FREE Heathkit Catalog. easy -to -build kits for stereo/hi-fi, amateur Name radio, shortwave, test, marine, CB, educational. Address Mail coupon today to Heath Company, Benton City State Zip Harbor, Mich. 49022. P,ces & specifications subject to channe without notice. HF-191.1

32 RADIO -TV EXPERIMENTER by Edward A. Morris, WA2VLU

That RF signal isn't any good unless you can hear the audio -compress peakstoincreaseaveragemodulation.

If your Ham or CB rig does not seem to How it works. The compressor is some- be getting out the way you think it should, what unique in its method of operation. That and your contacts remark that your signal is is to say it uses a transistor, Q4, biased so as hard to copy -it could be your modulation! to act as a variable resistor which shunts What's the answer? Boost your modulation! part of the output signal to ground whenever How? With this compact 4- transistor audio the output level rises above a certain value. compressor! Transistors Q1 and Q2 and their asso- Even though your modulation meter says ciated components form a two -stage com- that you're hitting at or near 100% on peaks, mon-emitter RC coupled amplifier. Operat- if you're not using voice compression, your ing bias for Q1 and Q2 is obtained from the average modulation is likely to be only 35% voltage dividers formed by resistors R1, R2 -some 10 db of audio lower. and R5, R6. Emitter resistors R3, R7 stabil- The only ways you can boost your signal, ize the output over a wide range of tempera- to the guys at the other end, are: to use a ture. Capacitors C3 and CS bypass the emit- more powerful transmitter, put up a high - ter resistors and prevent signal degeneration. gain antenna, or to use voice compression. Output from the first stage, developed Opviously the easiest method is to use voice across the collector -load resistor R4 is fed compression. into the base of Q2 through C4. The output The voice compressor described here is a from the amplifier is taken across potenti- small, compact, unit that can be built right ometer R8 through C6. Note hjwever, that into the transmitter or transceiver its to be part of the output is coupled into the base of used with. It's modest cost, less than $10.00, transistor Q3 through capacitor C9 and re- won't crimp a small budget. Easy to build, it sistor R10. Resistor R10 limits the signal. can be assembled in several hours time. Bias for Q3 is set by R12 and potentiometer

JUNE -JULY, 1966 33 RTVE's Audio tional rigidity to the wiring. All capacitors Cornpressor used are miniature types designed for upright mounting. Resistors are mounted on end to R11, which also serves as the compression conserve space. The general parts layout can control. be seen in the photographs. All compo- The output from Q3 is full -wave rectified nents, except capacitor Cl, are mounted on by diodes D1, D2, and filtered by capacitor one side of the board, with the wiring on C12. the reverse side. Do not wire in resistor R15 Bias for transistor Q4 under no signal con- at this time -it's exact value for your par- ditions (that is without someone speaking ticular unit will be determined later. into the microphone) is set by resistors R14 As all components are mounted close to- and R15. This transistor is normally oper- gether, the pigtail leads on the components ated close to saturation. Any increase in for- themselves can be used as the interconnect- ward (negative voltage) bias will drive the ing wiring. Use plastic insulation (spaghetti) transistor into saturation. When Q4 satu- where necessary to prevent accidental shorts. rates, its internal resistance drops. This low Special care must be taken to prevent dam- AC impedance is shunted across the output age to the transistors and the diodes when of the preamplifier -from the collector -load soldering them into the circuit. Complete the resistor for Q2, through C13 and C14. These soldering operation as quickly as possible. capacitors are connected back- to-back to The leads are short and a heat sink is not form a large -value non -polarized capacitor. always practical. So we can see that the greater the input When the compressor is completely wired, signal level, the deeper into saturation tran- double check it against the schematic for pos- sistor Q4 is forced. As a result, more output sible errors. signal is shunted to ground. The overall ac- Whether or not the compressor is built tion is to compress the peaks so the output into the transmitter it's to be used with, the signal remains relativity constant, despite compressor must be housed in a metal con- variations in the input -signal level. tainer. The compressor must be shielded Construction. The use of perforated board well to prevent feedback. If the compressor simplifies the construction. All components is built into a transistorized transmitter, are inserted upright, with their leads pass- switch Si and battery B1 may be eliminated. ing through the holes in the board. Minia- The compressor can be connected to the volt- ture eyelets, inserted in the proper holes, age source in the transmitter making a sep- serve to anchor leads and to provide addi- arate ON -OFF switch unnecessary. The com-

OUTPUT TO 1 BI TRANSMITTER

INPUT FROM MICROPHONE

Switch 52 can be eliminated if you want the Compressor to be in the circuit at all times.

34 Ii.1D10 -TV EXPERIMENTER C12 04 C8

Dl R14 1713 -R16

Mounted vertically the components resemble the skyline of a large city. 02 This technique allows more components to be C3 packed into each square inch of perforated board. R3 Wafer -thin C1 is mounted against underside of board.

OUTPUT TO TRANSMIT TE INPUT FROM MICROPHONE 03 04

D1-D2

R8 M

DC POWER WIRES

RII MOUNTING HARDWARE ASSEMBLY T1 Depending on transmitter layout the leads Control shafts for R8 and R11 can be cut for audio signals and DC power may be run short and slotted for screwdriver adjustment through either or both ends of chassis box. to save space required to clear small knobs.

PARTS LIST FOR AUDIO COMPRESSOR R8-5,000 -ohm miniature potentiometer (La- fayette 32R7355 or equiv.) B1 -12 -volt battery (see text) -9 R9- 470 -ohms, 1/2-watt resistor C1- .001 -mf., miniature ceramic capacitor R10- 27,000 -ohms, Y2 -watt resistor C2, C3, C4, C5, C9, C12- 10 -mf., 12 -volt R1 10,000 -ohms, miniature potentiometer electrolytic capacitor (Lafayette 1- miniature (Lafayette 32R7356 or equiv.) 99R6082 or equiv.) R12- 100,000 -ohms, 1/2-watt resistor C6- .01 -mf., minature ceramic capacitor R13, R14-1 ,000-ohms, t/2 -watt resistor C8, C11, C13, 50 -mf., 12 -volt min- C7, C14- R15- 100,000 -ohms, 1/2-watt resistor (see text) electrolytic capacitor (Lafayette 99R- iature R16- 22,000 -ohms, 1/2-watt resistor 6085, or equiv.) S1- S.p.s.t. switch (see text) ceramic capacitor Cl 0-.05-mf., miniature D.p.d.t. switch, miniature toggle (La- Diode, 1N34, 1N51, 1N105, 1N267, 52- Dl, D2- fayette 99R6162 or equiv.) 1N295 or equiv. transformer, miniature 10,000 -ohm 2N217, TI-Audio 01, 02, 03, 04- Transistor, pnp, primary; 2,000 -ohm secondary (Lafayette 2N118 or equiv. 2N320, 2N407, 99R6126 or equiv.) 15,000 -ohms, 1/2-watt resistor R1- Aluminum chassis box, 31/4 x 21/4 x 1 %- resistor 1- R2- 68,000 -ohms, 1/2-watt inches resistor R3- 1,800 -ohms, 1/2-watt Misc.-Solder; eyelets; perforated board; resistor R4 -4,700 -ohms, 1/2-watt spaghetti; wire; etc. R5- 10,000 -ohms, 1/2-watt resistor R6- 56,000 -ohms, r/2 -waft resistor Estimated Construction Cost: $8.00 R7- 680 -ohms, 1/2-watt resistor Estimated Construction Time: 6 hours

JUNE-JULY, 1966 35 RTVE's Audio Compressor

Layout of chassis box is not critical. Holes in case cover can be either on right or on left. Placement of front -panel controls is also subject to a change in spacing and position.

TOP

CASE COVER BOTTOM

-+-

HOLE FOR #2 SCREW (II REO.) Ts

I f2'. TYP

Compressor was installed inside cabinet of DIA. HOLE (2 REO1 this Lafayette HA -650 6 -meter transceiver.

COMPRESSOR

pressor draws only a few milliamperes. potentiometer until the output level just Initial Adjustment. Once the compressor drops. Remove the combination from the has been wired and checked for errors, con- circuit and measure their combined resist- nect a 39,000 -ohm resistor in series with a ance with an ohmmeter. Replace the combi- 250,000 -ohm potentiometer. Wire this com- nation with a resistor which comes the closest bination into the circuit in place of resistor to the measured value. Typical values will R15. With the OUTPUT control at mid -posi- range from 50,000 ohms to 150,000 ohms, tion, and the COMPRESSION control fully depending upon the individual characteristics counterclockwise, whistle into the micro- of the transistor used for Q4. phone and reduce the resistance value to the (Continued on page 68)

36 RADIO-TV EXPâRIMENTIrß ONMS ohms RANGE EXPANDER

X DPP -uEgÓ r. SET VOM range TO XIOX

ex by anderThomas H. Charters If you don't own a VTVM you've already moaned over shortcomings 100K range. of the ohms ranges on your VOM- here's how to add an RX on If you have tried to measure resistances scale deflection (zero -ohms indication) adjustment is necessary to larger than one megohm, you know that it is the meter. (This into account aging of the battery.) Then difficult with a VOM. The scale is crowded in take leads are connected across the un- this region and just the thickness of the meter the test resistance and its value read from needle represents a large difference in resist- known the meter scale. The calibrations on the ance. The Ohms -Range Expander gets very unevenly spaced (non -linear) around this problem by adding an extra -high scale are because the relationship between unknown resistance range to your meter making it resistance and meter current is nonlinear. possible to measure resistances ten times Ohms -Range Expander makes use of higher than you could before. The Most multimeters have this limitation; it this same scale. An important question to ask about de- is a compromise that most manufacturers signing this circuit is, "What value of un- eliminate a high -voltage battery. One make to known resistance will cause the meter needle the exceptions to this is the line of multi- of to deflect to half- scale ?" The answer is, "A by Triplett which do have a meters made value equal to the total resistance of the a 30 -volt battery.) high- resistance range (and meter circuit, in this case I17.7K plus the adds a X 100K The Ohms -range Expander parallel combination of 23K, 2K, and R3, multimeters includ- resistance range to many or about 120K total." A glance at the multi - 260 and ing the following: Simpson Models meter shows that 120K is indeed the center - 555 270, Heathkit Model MM -1, Eico Models scale value. (Other VOM's may have differ- and 565, Knight VOM kit #83U972MW. ent center -scale calibrations.) After all, this Operation is easy, it can be left connected makes sense because when the leads were to the multimeter without interfering with shorted, 50 microamps was flowing in the any of the multimeter's other functions, and meter. Adding an unknown external resist- it is line -operated, eliminating battery re- ance equal in value to the ohmmeter circuit's placement. resistance should cut the current in half, giv- What Happens. The ohmmeter circuit ing a center -scale reading. used by several manufacturers for the How It Works. Now we are set to see R X 10K range is shown in the diagram. how the Ohms -Range Expander works. In Before measuring the unknown resistance, order to have a R X 100K range we must the leads are shorted together (com and +) have ten times as much resistance in the -scale and the potentiometer is adjusted for full- measuring circuit (so that the center

JUNE -JULY, 1966 37 Bracket (below) holds the TEST LEADS I- calibrating potentiometer I TO UNKNOWN NORMALI I RESISTANCE R15. Slot is fitted IS1A R2 D1 R3 R4 R6 under one test lead jack. I J1 RED J BLACK J2

117V 130V (GREEN LEADS NOT USED)

PI TO RED MULTIMETER P BLACK

COM For portable use transformer, rectifier and filter can be replaced with 671/2-volt battery. Rewire SlA into battery circuit UNKNOWN-- to prevent continuous current RESISTOR drain in normal position.

BI 7..5 VOLTS +o4 Basic VOM ohmmeter circuit uses I+ 7.5 -volt battery in high range.

PARTS LIST R6- 1.07 -megohm, '/, -watt 1 % precision re- C1- 8 -mf., 250 -volt electrolytic capacitor sistor (IRC metal -film- Allied Radio 25Z018C1 D1- 1N2070 silicon rectifier (Texas Inst.) (400 - S1- D.p.d.t. slide switch prv, 5 ma or better) 52- Pushbutton switch (Switchcraft type 102) J1 -Red banana jack (E. F. Johnson series 108) T1 -Power transformer, 117 -volt, primary; 130 - J2 -Black banana jack (E. F. Johnson Series volt, 20 ma secondary (Stancor 8415) 108) 1- aluminum chassis box, 4 x 21/4 x 21/4- inches P1 -Red banana plug (E. F. Johnson series 108) (Bud CU- 2103A1 P2 -Black banana plug (E. F. Johnson series Misc. -Potentiometer mounting bracket (see 1081 text); line cord; rubber feet; strain relief; R1 -10 -ohm, 1/4 -watt, resistor grommet; heat-shrinkable tubing; terminal R2 -10 -ohm, 1/2-watt, resistor strips (see text); spaghetti; mounting hard- R3- 18,000 -ohm, 1 -watt resistor ware; panel lettering; etc. R4- 15,000 -ohm, linear taper potentiometer Estimated construction cost: $6.00 R5- 15,000 -ohm, 1 -watt resistor Estimated construction time: 4 hours

reading will be ten tines higher. This also 1.08 megohms. R1 acts as a cheap fuse in means that we must have ten times more case T1 should short -circuit. When switch voltage, too, because the meter coil still Si is in the Normal position, the Ohms - needs 50 microamps before it will deflect full Range Expander is shut off and the meter scale for setting zero ohms. leads are connected directly to the meter That's all there is to it. To get 10 x 7.5 for normal operation. When Si is in the volts, the Ohms -Range Expander supplies an R X 100K position, S2 shorts the multimeter additional 67.5 volts which added to the 7.5 terminals together so that Zero Ohms can volts gives 75 volts. To get 10 X 120K, the be set with the multimeter Ohms-Adjust Ohms -Range Expander supplies 1.08 meg- knob. After the unknown resistor is con- ohms which adds to the 120K to give 1.20 nected, the READ button (S2) is pushed megohms. Now, the center -scale reading is which unshorts the meter giving a reading. 1.20 megohms. The main purpose of S2 is to prevent elec- The schematic diagram shows the com- trical shorts -it keeps the 67.5 volts from ap- plete circuit. Some extras have been added. pearing across the meter leads except when Circuit parts Ti. R2, Dl, and C1 form a a measurement is being made. half -wave DC- voltage supply. Resistors R3 Construction: If you want to use the and R4 reduce the DC voltage to 67.5 volts chassis box specified in the parts list, the across R5. R6 adds to the parallel combina- dimensions given in the drawings work well. tion of R3, R4, and R5 to give very nearly The layout is very compact, however, and

38 RADIO -TV EXPERIMENTER Chassis box layout is optional. Wiring isn't critical since there is no chance for feedback.

O.J 4 I _,

9PO* . 9 >:' a

. ® I14 5' HOLE I 6 (4 REQ.) SIDE rs TOP n DIA.HOLE (6 REO)

For some multimeters (VOM's) you'll need pin tips on the leads instead of the banana plugs shown here. Since some connections are quite close together it is best to use plastic sleeving (spaghetti) on the longer pigtail leads.

Only thing to watch out for is AC leakage between tie -strip terminals through a buildup of the rosin flux from the solder. This current leakage can add hum to your DC output.

the dimensions should be followed closely. The two terminal strips used (one with a mounting lug and two terminals to the right, the other with a mounting lug and two terminals to the left) were cut from larger strips. The leads to the meter were made from a length of lamp cord, slit three inches from one end, and prevented from separating further by a piece of heat -shrinkable tubing. With some volt- ohm -milliammeters you may to Normal. Adjust the multimeter Ohms - have to reverse the connections to the red Adjust knob for a reading of zero ohms. Set and black plugs and jacks from those shown the Expander to XIOOK. With a screwdriver, in the diagram. To simplify switching these set R4 so that the multimeter again reads VOM's use reverse polarity to the test leads. zero ohms (this adjusts the voltage to 67.5 First Time Use. Plug the red and black volts and shouldn't have to be touched again plugs into the plus (V(A) and common unless the line voltage changes). Plug the jacks of the multimeter. Set the multimeter meter leads into the Expander, connect a to R X 10K. Set the Ohms -Range Expander resistor, press the Read button, and read.

JUNE -JULY, 1966 39

4' dial -a -ohm oPli resistance substitution box

by e. norbert smith W5MQL

As every electronic experimenter knows, of 100,000 is ±1,000 so the 100 ohms is a good resistance substitution box is an in- insignificant. valuable aid -a timesaver in breadboard and The third type is more of a novelty but troubleshooting work. They range in price merits attention. The circuit in Fig. 3 il- from less than $6.00 on upward- depending lustrates a switching type decade in which upon accuracy, number of resistance values only 4 resistors are required per switch. The available, and their power capabilities. disadvantage of this type are first, a more There are three commonly used varieties, expensive switch is required and again the each with different applications. The sim- tolerances create a cumulative error over- plest circuit is a selector switch (Fig. 1.) shadowing the smaller values and second if which picks one of several different -value one resistor should become damaged several resistors, usually ±10 or -±-20% tolerance resistance values would be lost. for quick substitution in radio and TV repair A New Approach. A simpler, and quite work. These are inexpensive but have two precise method has been used by the author drawbacks; First only a limited number of for some time with excellent results. The resistance values are possible leaving many circuit in Fig. 4 shows simply two, ten -turn wide gaps and unless -±1%, or better toler- potentiometers (pot) (with calibrated turn - ance, resistors are used they are not too use- counting dials) used as independent substi- ful when accurate substitution is required.. tution resistors. Both are -173% accurate The second, and most commonly used with .25% linearity. With the turn -counting type, is the resistance decade box which con- dials, resolution is accurate to 1 /1000 the sists of several selector switches, with each total value or .1 ohm for the 100 -ohm pot selector switch having 10 positions, with 9 and 100 ohms for the 100K pot. This would resistors, see Fig. 2. For example, a 6- switch be equivalent to having a decade box with decade would be capable of any resistance 7 selector switches and 63 precision resistors. value from 1 ohm to 999,999 ohms in incre- Using the Variable Decade. Connect the ments of 1 ohm. Of course, this unit would variable decade in the circuit being worked be rather expensive. Considering ±1% re- with and adjust the knob until the circuit is sistors at one dollar a piece it will cost (prices functioning properly. Then read the cali- vary, of course, with type, manufacturer and brated dial. With the 100 -ohm pot each power ratings) $54.00 plus selector switch, scale division is .1 ohm-each full turn is etc. Another disadvantage is when several 10 ohms. The 100K dial reads 100 ohms for resistors are added, the tolerance of the each scale division-10K for each turn. larger may override the resistance of the After reading the resistance indicated on smaller. For example, assume the resistance the dials refer to the Standard Value Table, of 100,000 ohms is selected, the 1% value and select the standard value of the desired

40 RADIO -TV EXPERIMENTER o -1 o OUTPUT-o

3 I I 0 4 Lt_J 5

6 6 7 T IÓ 91 8 g 9 0 SELECTOR S

IODA IOOK TEN - TURN TEN - TURN POT 3.3K POT v v v resistance tolerance nearest the indicated Fig. 1. Circuit of resistance substitutor. the variable decade to reading and readjust 3. (top, right) Four resistors and a using and Fig. the standard value you intend 2 -gang switch form one resistance decade. still functions prop- make certain the circuit Fig. 4. (above) Potentiometer -type circuit. erly, if not perhaps a closer tolerance resistor must be used. As with any substitution box caution must be observed to keep the current to a safe value. Current should not exceed 200 milli-

o---

Completed unit shows 10 -turn "pots" in a chassis box wired to 5 -way binding posts.

"ONES" DECADE "TEN'S' DECADE Standard Fixed Resistor Values Fig. 2. Nine resistors and a single -gang 20% 10% 5% 20% 10% 5% selector switch are needed for a decade. - 10 10 10 33 33 33 36 in the 100 -ohm pot and 200 micro- 11 amperes 12 12 39 39 amperes in the 100K pot if you use units 13 43 to those used here. Check the identical 47 of your units carefully. Some 15 15 15 47 47 specifications 16 51 11/2 10 -turn potentiometers have ratings of 18 18 56 56 watts -others are rated as 2, 3 and 5 watts. 20 62 Sometimes wattage, current and voltage 22 22 22 68 68 68 ratings conflict -for example you may not 24 75 be able to get maximum wattage at maxi- 27 27 82 82 mum resistance without exceeding the volt- 30 91 age rating. Check all potentiometer speci- Higher standard values may be formed by adding fications carefully. zeros up to 22 megohm 41 JUNE -JULY, 1966 Will we be made mincemeat from a pie in the sky?

RADIO -TV EXPERIMENTER TFIHE MooD of the city was happy and gay. For the past week, holiday crowds had swarmed into stores, buying food and small luxuries and liquors, all the extras of holiday time. Tailors worked nights to repair men's Destruction worn dress -up suits and housewives polished shiny the one- or two -room apartments they called their homes. Young girls and women stood in line at hairdressing shops; while from others, not as particular or prosperous, watched TV instructions on how to set their own hair. All through the city the streets were lined Space with colored lights, and now the city's people who could not crowd their way into Red Square lined the long cobbled reaches of by K.C. Kirkbride Gorky Street. Four ábreast, standing in a light, falling snow, atop the balcony of Lenin's tomb, were: Marshall Rodion Y. Malinovsky, Soviet Defense Minister, Raul Castro, Cuban Defense Minister, Dmitri S. Polyansky, Dep- uty Soviet Premier, First Secretary Leonid I. Brezhov, and Khrushchev's successor, the present Premier, Aleksei N. Kosygin. It's Holiday Time. To the people lining the streets, this was a festive day, a few hours let -up in a long working year. But to the men atop the stone balcony, grim - lipped, severe, the day had deeper, more significant meaning. Now, they awaited the parade that would mark the celebration of the 48th anniversary of the Bolshevik seizure of power in Russia. Slowly, somberly, two- hundred -fifty pieces of military hardware rolled over the old cobbled streets into the Square, past the saluting men on the balcony, a military show meant to impress and frighten peoples throughout the world. But reporters at the scene said the first part of the Russian "spectacular" (Continued Overleaf)

43 didn't reveal any weapon they hadn't seen space, and their light of warning will be the before. blinding terror of the thermomiclear fire- The Ultimate. Then a stilled hush fell ball." over the crowd. Wide -eyed and awed, the Commander of the United States Air people watched four huge cumbersome olive - Force Systems, General Bernard A. Schriever dark monsters rumble down Gorky Street added: "Since the Soviet manned orbital into the Square. Even the sight of the men- flights in 1961, Soviet leaders have boasted acing missiles sent eerie shivers through the they could use their space technology to crowd. For before them rolled one of the build 'global rockets' or place 100 megaton most ominous weapons man has ever de- bombs in orbit." The General warned the vised, a long- nosed, 115 -foot mass killer that Soviet objective is still world domination, could rain terror on distant cities, a killer and "for the first time in history, the vast that could set whole continents aflame. expanse overhead has been penetrated by Tass, the Russian news agency, dubbed it vehicles we can neither identify nor inter- the longest rocket ever built in Russia, a cept." three -stage, liquid -fuel job, an "orbital mis- Civilians. But civilian -political reaction sile whose warhead can deliver its blows differed from military. And somehow the unexpectedly to the aggressor at the first, contrast left a foreboding feeling with people or any other loop around the world." Mos- who remembered. Hadn't military men cow Radio added: "At the very end (of the warned about Germany, Japan? Hadn't polit- military show) came the orbital missiles - ical leaders then scoffed at Mein Kampf? their very size a striking testimony of their Hadn't they pooh- pooh'd when military offi- colossal power." cers warned Mitsui Toyama, heading the Warning. Only weeks before, military Black Dragon Society, was infiltrating the correspondent Paul Roberts, reported in the New York Journal that space circles buzzed with stories the Soviet Union would soon launch into orbit a vehicle of "staggering nature and proportion." Though when he wrote his story, Roberts thought the frightening weapon would be a mammoth space station, in which Russian crew members in a "shirt- sleeve" environment, could whisk round the world in orbit, spying, scouting, or dropping H -bombs at will over Western - world cities. Whether the Western world was in for Soviet blackmail by space station or orbital missile, the whole show of Soviet strength echoed Khrushchev's words at the 1962 Geneva Disarmament talks when he warned Russia had developed a missile that would reach the United States from any angle of Japanese army, navy, government. And his approach over distances up to 20,000 miles, favorite slogan was "We will attack the two turning our Early Warning System into a great nations of the world." Meaning then, real sharp, eager -beaver Maginot Line. the United States and Great Britain. But Reaction. The warning couldn't have then, as now, political men went about their been plainer if printed in 92 point Bodoni peacetime business. How could Hitler, a type. But what was the reaction of the maniac, and Toyama, an idiot, start a war? threatened Western world? But, in the sixties, do our civilian -political Brigadier General Robert Scott (retired) leaders follow the same path of tragic error had already said: "We are moving into a followed in the thirties? In the face of the time of astro- power. We face a threat be- dread intimidation in Red Square, our Wash- yond imagination. What may come against ington political leaders reacted with a fast our beloved America will not be signalled by mental slap on the Russian leaders. They one light from the North Church steeple, if reminded them tartly, but politely, it really they come by land, and two, if they come wouldn't be cricket to start any old naughty by sea. Never again. They will come through war in space. After all, on October 16, 1963.

44 RADIO -TV EXPEIUMExres hadn't Russia signed a United Nations Agree- make a weapon almost invulnerable to ment that read: electronic detection. Even more foreboding "The General Assembly-solemnly calls on is the fact the orbital missile does not need all states: To refrain from placing in orbit to hurl its bombs to the earth. It can deton- around the earth any objects carrying nuclear ate a 150 megaton bomb in space, set a whole weapons or any other kind of weapons of continent aflame. mass destruction, installing such weapons on Space Weaponry. Probably hard to celestial bodies, or stationing such weapons grasp now by both civilian and political per- in outer space in any manner." son alike is the severity and startling innova- Clumsy. Three days after the orbital tions of space weaponry. Germany's rocket rockets rumbled through Red Square, the pioneer Professor Germann Oberth proposed Associated Press carried a story saying our some time ago, we develop a "giant mirror authorities in Washington had considered in space (some sixty miles in diameter) that and rejected the idea of building an orbital could burn any enemy country on earth." nuclear missile. The thing was clumsy, prob- Another reputable German scientist working ably inaccurate and not quite up to the ef- on photon (electromagnetic ray) power as ficiency of our land -based and submarine - a source of propulsion, say if such power is launched weapons, the story said. possible so is a "death ray,' a weapon that The men quoted in the story (anony- would burn or melt targets. While our own mously) flicked the whole thing off the na- American scientists have already developed tional lapel by adding that any old warhead a limited "death ray," a laser "ray gun" that that started out in life on any such mission can pierce through metal. from orbit probably wouldn't make the grade Pearl Harbor From Space. While these to within, say, 50 miles of target. Compared weapons are still in the future (we hope!), the orbital missile is admittedly existent, and Western Air Force officers warn a Pearl Harbor from space would microminiaturize the 1941 version. Yet, in face of these warn- ings and facts, in the face of the knowledge the Russian space effort has been run from the first by the Red Army, our national policy in space remains committed to "peaceful uses." In his Journal story, Paul Roberts reported our military men are "desperately concerned at the strategic implications in space, believe our "civilian" preoccupation with space travel can hazard our national survival. For the strongest obstacle the United States Air Force has to overcome in its efforts to win go- aheads for even limited efforts to aid national security is the determined dedicated of purposes" in our space to this, our missiles, and submarine Polaris policy "peaceful along the line, the weapons boast an accuracy of one mile off program. Somewhere our eye, and we forgot about target. moon caught Off Target. But is it possible the "author- survival. Triumphs. True, the Air Force has ities" referred to in the AP story were them- Small wins. The right to put up Midas, selves off target? Noted physicist Ralph made small detective can scout Lapp reminds us ICBM bases are vulnerable was one. The satellite bases, watch from high orbit, to enemy attack even though hidden in con- Russian missile warning if a Soviet missile crete fortifications underground. The Polaris, give 28 minutes States cities. The though capable of long submerged cruises, sets out to attack United electronic sensors track the could be attacked if new technological meth- Midas' infra-red they launch into ods were developed. heat trail of missiles as While an orbiting H -bomb has a "maxi- space. up mum of mobility and a minimum of vulner- The Air Force won the right to put ability." And American technicians are al- Samos, too. Samos, an orbiting camera, ready aware coatings and paint jobs can (Continued on page 115)

JUNE -JULY, 1966 45 :.

by Arnold Marquis How Tape Saved The Voice of an American Will Rogers Legend 1879 -1935

A time, patience and magnetic recording miracle

O If Will Rogers had had his way, you was often picked up at banquets, and in such couldn't hear any of his commentaries today. places as auditoriums, armories, race tracks He had little if any interest in recording. He and theatres. felt that what he had to say was so topical But when they tried to sell him the record- there was no point in preserving it. Thanks ings they'd made, he kidded them out of it. to electronics and the modern tape recorder, He never bought one. He was not even inter- you can hear his actual voice today, making ested in hearing them. Yet those commen- some of his best commentaries -even though taries are some of the most important today. he died before tape recording came into its His famous radio programs were recorded own. for reference only, that is, for protection Will Rogers made a few professional ten - should there be a lawsuit over something he inch discs, but these were made in the dead said. Of course there never was. silence of primitive studios with none of the No effort was made to collect these record- crowd reaction of his public appearances. No ings during his lifetime. But several years organized effort was ever made to record him after his death, his family began to gather for posterity. what recordings they could find, all on discs Those commentaries of his that were re- of some kind scattered all over the country. corded at all were recorded incidentally. They found one here, one there, and since Early recording buffs, sensing his impor- there had been little interest in recording tance, hauled cumbersome electronic equip- what he said, there was no record of who ment to the places he was to speak and re- had these disc recordings. By word of mouth, corded his distinctive voice almost against his word of the quest filtered across the country, will. He kidded the microphones and the and one lead led to another. Many people equipment; or ignored them altogether. Yet, who had recordings had long since forgotten thanks to those far -seeing buffs, his voice them, and had to be reminded.

46 RADIO -TV EXPERIMENTER New Orleans reception was typical of many impromptu recording sessions by buffs. Will Rogers and friend in Hollywood pose.

A little backstage horseplay on a Hollywood movie lot relieves tensions.

Recordings were mouldering in neglect in While they were being gathered, one of a hundred places, and a sad lot they were, the radio networks took a mild interest in most of them. Most were covered with dust them. But the network decided the discs were and dirt. Many were cracked. Some were hopeless. So, back into the Rogers' vault in completely broken. Most were scratched, Beverly Hills they went, and there they and pieces of the edges chipped off. Some stayed for more years, ignored and neglected. had obviously been dropped or had heavy I learned of the existence of the recordings objects stored on top of them. Nearly all had while, as a writer and producer, I was doing been mishandled and abused -particularly a series of programs for the Rogers Commit- those that had been sent to Will Rogers, as tee on Indian affairs. I was told that one of these had been taken out of their parcels, and the networks had rejected the material as neglected. Almost none (either those the hopeless. But having had some previous ex- Rogers family had or those in the possession perience with modern tape recording tech- of those who made them) had been protected niques, I talked to a skilled technician, by jackets. Grime and grit ground into Joseph Kay, with whom I had worked for them as they were piled, one upon the other, years at NBC. Together we went to the unprotected, like cord -wood. Rogers vault and surveyed the dilapidated And because they were made of many recordings. We could see why they had been kinds of soft material, they were more than rejected. ordinarily vulnerable. Some were on alumi- Kay devised a mechanism for flattening num that had corroded. Others were on a the warped discs. Some of them had virtually flexible material, similar to vellum, which to be held together on the turntable to keep cracked, warped and tore or were on a sort them from disintegrating. Then Kay con- of coated cardboard which bent and broke. cocted a solution to clean away the corro- All deteriorated from dampness or dryness. sion, dust and grime, before starting the long

JUNE -JULY, 1966 47 How Tape Saved The Voice

Between takes of A Connecticut Yankee!

"I only know what I read in the papers." The late FDR was introduced by Rogers during the 1932 Presidential Campaign.

and tedious task of restoration. 1 here were worn, warped and corroded condition of so many mishaps, it seemed the recordings these original disc recordings, there was the could not be saved. But one thing was ob- imperfection of the original sound pickup vious, it was now or never. If the recordings itself. The recordings were full of extrane- got any older, they could never be dubbed, ous sounds, the reverberation of the hollow recorded onto a new base. Indeed, some were convention halls, wind blowing, auto horns so far gone that in the very process of dub- squawking, locomotive whistles, and the bing they crumbled to pieces. whining and moaning of inaccurate speeds. We dubbed everything simultaneously on- Most of these ills could never be fixed on to two 30-ips master tapes. One of these was discs. But many could be fixed on tape. placed immediately in the Rogers vault. In editing (cutting, splicing the tapes), From the other master tape two acetate -base there was the problem not only of matching discs were made -one for working purposes two different levels, but also of matching two the other one also went into the Rogers vault. different backgrounds. Some of the extra- One by one the broken, scratched, gouged, neous sound were so over -powering that they grimy recordings were dubbed to tape. A obliterated words, and sometimes whole sen- secretary stood by to keep accurate notes on tences, completely. But because we were each recording. She noted where the record- able to work with tape we were able to save ing had been made; what it was recorded on; a great deal that would have been lost. who had recorded it; who was on the pro- The most tiring task was taking out the besides Will Rogers; the nature of the gram clicks from cracked records. Every single subject matter; the topics of the day he click, numbering into the thousands, was covered; how long he talked; and any other clipped out and the cut tape ends data we could include. matched Rogers never talked long on any subject. up. Today there is not a single click in any Sometimes he delivered just a line or two, of the Rogers material. like, "Political campaigning is kinda like One by one, as they were edited, the reels fishing. You have to go where you can find were cleaned up, and equalized. Then they the fish, and then you have to have the right were dubbed to 15 ips tapes, and typists bait." transcribed them to text. Since Will Rogers Or, "The morning after election people ad libbed, there were no scripts to follow. So don't come around and say 'Did you conduct the typists, working with head -phones, played a clean and dignified campaign ?" No sir. the tapes and typed every word, every fluff, They just come around and say, 'Boy, did every grunt, chuckle and laugh. you win ?' That's politics in a nutshell." When the task was done (it took ten Now the editing started. Aside from the months) copies of these tapes were placed noise and the distortion introduced by the (Continued on page 118)

48 RADIO -TV EXPERIMENTER Neon -Lamp Calculator

By Jack Brayton

Neon glow lamps provide the readout for this desk -top calculator that can be "programmed" to multiply, add and subtract. 12

Pure fun to build; pure fun to operate, that's the Neon -Lamp Calculator. Its magic - like lamps fascinate not only the builder but everybody else as well. And, if it's left about, somebody is bound to turn the rotary switches, then stare at the lamps which appear to "bounce" across the panel indicate - ing the sums, differences or products of the switch -selected numbers. The Neon -Lamp Calculator can add, subtract, or multiply any two numbers properly set on the switches. It's an exciting, visual aid for youngsters learning math tables or 21 as a Science Fair project. But most of all it's just plain gadget -building fun. How It Works. Be-ore we analyze the circuit let's look at the basic addition, subtraction, and multipl cation functions. It's here that the real secret of the Neon -Lamp 0 Calculator lies hidden. The table shows all possible problem combinations which car exist when any two

numbers from 1 through 9 are added, sub- tracted, or multiplied. What the table doesn't show is the answers -these are dependent on the functions being performed. 32 However, it's important to note that the 2 numbers which make -up the problem are identical for each function. To illustrate, the numbers 7 and 4 can be added, sub- tracted, or multiplied, bA no matter what we do with them, on 7 and one 4 input is

Jt'NC-JüLY, 1966 49 gram the AC -line voltage is applied to the calculator circuitry through T1 -an isolation NEON -LAMP CALCULATOR transformer which provides approximately the same voltage at its secondary as is applied across its primary. This transformer elim- still required. It's only the answers which inates the shock hazard which would be are different. present if the line was connected directly. The next thing to notice about the table is The secondary voltage of Ti is, of course, that we've divided the inputs or number present at the rotors of the switches (through combinations into 3 groups. In the first S3 and RI ). RI limits the lamp current. group we have the combinations where the Looking at the circuit, we can see that the first number is larger than the second num- rotor of SI connects to the horizontal and ber. The second group lists the problems S2 to the vertical bus -wires. Thus, for any where both numbers are identical. And, in combination of switch settings one horizontal the third group the first number is smaller. wire is connected to one side of Ti (through Of course, with addition or multiplication R 1) and one vertical wire is connected to the answers to both the problems in the first the other side. Thus, there's a 110 -volt differ- and third groups are the same. It doesn't ence of potential between the two wires. matter which number comes first. And, with And, where they cross, there's a neon lamp. subtraction, the larger number always comes This lamp, of course, lights. It's important to first unless negative answers are desired. note that only one lamp is connected to the Therefore, if we don't want negative answers AC voltage for any switch setting. we can eliminate the third group entirely and A small filament transformer (6.3 volts, at specify that the larger number has to come .6 amp is more than enough) can be used to first. Thus, if the problem reads 1 X 6 we light up #47 pilot lamps if greater brilliance would automatically change this to 6 X 1 is needed for visual -aid displays. Replace RI before solving. And, it's obvious that some with a 7 to 10 ohm resistor to prolong the types of calculators could be greatly simpli- life of the pilot lamps if they are left burning fied by this arrangement because they would for long periods or install a momentary - have to handle only a little over half of the contact pushbutton. Connections can be input possibilities. This is true of the Neon - soldered right to the lamp base-first solder Lamp Calculator and that is why we've de- the bottom bus wire to the shell then solder signed it so the larger number has to be on Si. the top bus wire to the tip contact. You About The Circuit. In the schematic dia- won't damage the lamps if you are careful and used tinned wire for all connections. Possible Problem Combinations To illustrate, let's assume switch Si is set at 7 and S2 at 4. Tracing the #4 (vertical) Group 1 wire and the #7 (horizontal) wire to where S1 S2 S1 S2 S1 S2 S1 S2 they cross we find there's a neon lamp 2 1 4 2 7 3 7 5 (marked with an asterisk () in the sche- 3 1 5 2 8 3 8 5 4 1 6 2 9 3 9 5 matic). This lamp lights -it's the only lamp 5 1 7 2 5 4 7 6 connected to both of these wires. Therefore, 6 1 8 2 6 4 8 6 it's the only one which can fire. Of course, 7 1 9 2 7 4 9 6 there are no lamps for settings where S1's 8 1 4 3 8 4 8 7 9 1 5 3 9 4 9 7 number is smaller than that of S2. This 3 2 6 3 6 5 9 8 would require 36 additional lamps and isn't Group 2 necessary for the reasons stated earlier.

1 1 3 3 5 5 Since we now have a circuit which will 2 2 4 4 6 6 8 8 light a different lamp for each input -problem 9 9 combination all we have to do is mark the Group 3 lamps with the proper answers. But since 1 2 2 4 3 7 5 7 the answers for each of the functions (mul- 1 3 2 5 3 8 5 8 tiplication, addition, and subtraction) are dif- 1 4 2 6 3 9 5 9 1 5 2 7 4 5 6 7 ferent 3 sets of answers are required. 1 6 2 8 4 6 6 8 With the Neon -Lamp Calculator we ac- 1 7 2 9 4 7 6 9 complish this simply by using 3 interchange- 1 8 3 4 4 8 7 8 1 9 3 5 4 9 7 9 able front panels-one for each function. 2 3 3 6 5 6 8 9 The panels fit over the tips of the lamps and

50 RwIO-TV ZLXPTrtIäslfTlcll e C9 o 8

Si Wiring of Calculator is quite simple. The (LARGER NUMBER) ten lamps of Circuit #2 are physically fitted into the vacant triangle in the lower -right corner of Circuit #1. 53 can I be replaced with a pushbutton 0-7 or eliminated since the NC positions of Si and 52 have 8 the same effect. For a RI 9 much brighter display use 82K lo S2 (SMALLER 6 -volt pilot lamps- replace NC oNUMBER) -- ON-OFF SWITCH T1 with 6.3 -volt filament $3 II7VAC ° transformer and eliminate R1. 53 should be a momentary (SEE TEXT FOR Ti II7VAC ALTERNATE rwwN contact pushbutton to give POSITION) long life to pilot lamps. are supported by; but not attached to; the 0.- DIA. HOLE (4 REO o 1/4 -inch threaded spacers which act as mount- 5 10 15 20 25 6 12 8 4 ing studs. The panels are held only by their 12 18 9 6 3 weight and can be readily changed. 6 24 30 36 Although they are not separate circuits part 7 14 21 28 35 42 49 4 2 of the schematic diagram is labled "Circuit 8 16 24 32 40 48 56 64 I #1" and part "Circuit #2 ". The reason for this is simply that the lamps do not fit on 9 18 27 36 45 54 63 72 81 the panel in the triangle shape they form on o MULTIPLICATION the schematic. They are mounted in a square to conserve space. Therefore, physically, we've placed Circuit #2 in the corner of Cir- o o cuit # I where there are no lamps. 6 7 8 9 10 8 7 6 5 Parts. Most of 'the parts used in the 7 8 9 10 II 12 Neon -Lamp Calculator can be obtained from 6 5 4 any electronic supply house. However, the 8 9 10 II 12 13 14 4 3

9 10 II 12 13 14 15 16 2 PARTS LIST FOR NEON -LAMP CALCULATOR 10 II 12 13 14 15 16 17 18

82,000 -ohms, 1 -watt resistor R1- o ADDITION o 51, 52- 12- position, single-deck, non- shorting rotary switch (Mallory 32112) or equiv.) 53- S.p.s.t. toggle switch T1- Power /Isolation transformer; 117-volt o o primary, 105 -volt secondary (Lafayette 33 R 4 3 2 I 0 0 I 2 4 7502 or equiv.) 1- Aluminum cabinet (Bud AC1613 or equiv.) 5 4 3 2 I 0 0 I 2 2 -Dial plates, 1 -9 markings (Mallory 379 or equiv.) 6 5 4 3 2 I 0 0 I 45 -Neon lamps, type NE -2 7 6 5 4 3 2 I 0 0 Perforated circuit board, 3 " /;. by 63/4- inches, unclad (Lafayette 19 R 3606 or equiv.) 8 7 6 5 4 3 2 I 0 Misc. -Flea clips; machine screws; nuts; washers; grommets ('/ie inside diameter); hookup SUBTRACTION O wire; solder; etc. Three panels Estimated cost: $14 identically -drilled front are Estimated construction time: 7 hours numbered differently to give the correct answers for the three Calculator functions.

JUNE -JULY, 1966 51 REMOVA8 E 4° THREADED SPACERS PANEL (4 REQ ) NEON -LAMP CALCULATOR

perlorated board, flea clips, and isolation transformer are Lafayette items and can be obtained from them. The perforated board is a stock size (32%2 x 63/4 inches) and only one edge has to be cut. The three interchangeable panels can be made from aluminum, pressed board, phenolic, etc. Construction. The first step in building a Neon -Lamp Calculator is laying out and cutting the perforated board. The holes at the line junctions are neon lamp centers. Now, cut the three interchangeable panels to an identical size. Then take a sheet of paper (same size) and tape it to the back of the board. Using a sharp pencil, mark St S2 both, the mounting and lamp hole centers on LARGER NUMBER SMALLER NUMBER the paper. Transfer the paper to the cabinet, It's a simple matter to lift off the panel and square it, all of the holes. and center punch drop a new one in place to subtract, add. Then tape the paper to each of the panels but mark only the 4 corner -mounting holes. same size as the panels. The 3 panels and Make a scratch (in approximately the same circuit board are attached to the cabinet and location) on the back of each panel. Later, the wood is used as backing. The perforated this mark will tell you which way they were board should be on top of the cabinet with drilled (the holes may match in one position the markings facing out and the 3 panels but not in the other). should be underneath with their backs Drilling. The easiest way to make sure (marked earlier) facing down. 6 -32 machine all of the lamp holes match is to drill the screws or wood screws in the mounting holes initial center holes at the same time. This can will hold the pieces firmly. Be certain the be accomplished in the following manner. panel marks are in the same position and First -using a 94;4 -inch (.1406) bit drill the that the board holes match those center 4 corner mounting holes in the perforated punched on the cabinet earlier, then drill the board; cabinet top; and each panel. These lamp holes using a %4 -inch bit. should be drilled separately. Next take a Remove the 3 panels and replace the piece of scrap wood and cut it to about the (Continued on page 91)

Phenolic perforated board JUMPERS layout shows jumpers used to #1 THRU #4 connect Circuit #1 to the corresponding bus bars CIRCUIT #2 CIRCUIT of Circuit #2. This layout #1 condenses the circuit without making wiring difficult. Leads to selector- switch 4 - ,400+,4t! 4. terminals are numbered for 3 O) ** their knob and dial -plate -100 TO ) *i SI position on front panel. 0. ..

9 8 7 6 5 4 3 2 1 Y TO S2

52 R1n10-TV ExrERIMENTER RADIO-TV EXPERIMENTER CHECK

LAFAYETTE MODEL HA -520

Dual -Band VHF

FM Communications Receiver

In the past, the wide frequency ratio be- While a single antenna could be connected tween the 30 -50 mc. and 152 -174 mc. "utili- to both front ends, separate terminals are ty" ( "public service ") bands was too great provided for each band allowing connection for single receiver coverage, and the SWL of antennas individually tuned for each interested in getting full coverage had to pur- band. Each antenna connects directly to its chase two receivers. Since the assignments own front end -there is no antenna switch- to these bands overlap -for example, the ing. Only the relatively low frequency out- New York City Police uses the high band put of the high and low band mixers -10.7 while their next door neighbors in Nassau mc. -is switched. The mixers feed a three County uses low band -the SWL with one stage IF amplifier, one of which is a limiter, receiver missed half the fun. and on into a ratio detector. No AM de- Yet the only difference between high and tector is provided, the HA -520 is FM only. low band receivers is the front end; the SWL Test Results. The circuit line -up of one with two receivers has paid for an extra IF stage of single tuned RF and three stages of strip, audio amplifier, speaker, power supply IF amplification results in rather good per- and cabinet which he doesn't need. formance- particularly when the less than Lafayette Radio's HA-520 Dual -Band $100 price is considered. While the receiver VHF Communications Receiver does what is rated for a 3 uv. sensitivity we found it should have been done years ago, it resolves applied to the low band; the high band was the two -of- everything problem by doing the about 8 uv., still a respectable figure. Selec- obvious thing-it combines two front ends tivity is notably good, as attested by freedom in a single receiver at a substantial savings from adjacent channel interference on the to the user. As example, two separate re- low end of the high band, which is as packed ceivers, one for the high band and one for with signals in the New York City area as the the low, would cost nearly $120, yet the 1 I -meter CB band. HA -520, which is essentially identical to the Audio quality is excellent, a very crisp two separate receivers costs but $89.95 -a sound with very low distortion. Of unusual savings of $30. interest is the fact that even with the volume How It's Done. To obtain maximum per- control wide -open on strong signals there was formance on the high band the front ends no tendency for the speaker's vibrations to are completely separate -not bandswitched cause microphonic howling. in the sense that only coils are changed; and The squelch is neither good nor bad -ac- each has its own separate antenna input. tually, we've seen better. The squelch circuit

JUNE -JULY, 1966 53 3 CHECK HIGH- BAND FRONT END SHOCK- LOW - BAND - MOUNTED FRONT- END SPEAKER

Shock- mounting for dual front -ends and speaker reduce the possibility of mechanical feedback IF causing the audio STAGES to howl when set for high volume.

uses the negative voltage developed by the necfs the antenna not in use. Therefore, if limiter IF amplifier to release the first audio the two antenna inputs are shorted together amplifier. Obviously, if the received signal is and a single antenna is used at no time will not strong enough to develop grid voltage one front end connection load down the on the limiter there will be no squelch re- other. While the instruction manual does lease. Under low atmospheric noise condi- not cover this point we feel it was the circuit tions the squelch released about 6 db above designer's original intention to permit a single the minimum usable signal strength. In prac- wire to serve as an antenna for both bands. tical terms, this means the "utility band We tried it out and it works just fine. DX'er" must turn the squelch off in order Though, of course, optimum reception is ob- to hear signals coming in just over the noise tained from separate, outdoor, tuned anten- level. In normal communications use no one nas. is going to bother with signals that weak and Allowing for its rather good overall per- the squelch is adequate. Notably, the re- formance, good frequency stability after a ceiver's noise limiting is good and we did short warm -up and ruggedized construction not experience false tripping of the squelch we feel the HA -520 is useful not only for the by ignition and atmospheric noises. hobbyist and SWL but for professional com- The HA -520's overall construction ap- munications use, such as by volunteer fire pears to be rugged, and we estimate that departments and "newshawks" (with an AC even severe handling or bouncing will not inverter it will work great in a car). adversely affect performance. While the HA -520 is priced at $89.95 and Special DX'ers Note. While the HA -520 a dual band antenna is an additional $19.95, has separate antenna terminals for each front they are available as a "package deal" for end the internal wiring lends itself to single $99.95. For additional information write to antenna operation. The bandswitch, which Department KCP, Lafayette Radio, 111 Jeri- selects the appropriate front end, also discon- cho Tpk., Syosset, N. Y. 11791.

H HIGH BAND H 1 (152 -174 MC) FRONT END Block diagram I L L >-*>-*K1 I C AMP AMP shows the switching )a.H LOW BAND IF AF SPKR of antenna and IF (30- 50MC) amplifier for L FRONT END dual -band reception.

54 RADIO -TV EXPERIMENTER We'll give you a guarantee: Use our Photo -Trol to balance the lighting for your home movies, family stills, or portraits, and your results can be as good as Hollywood or the local pro. If not, tear off the top of your local newsstand dealer and throw it into a PHOTO mailbox. Seriously, the secret to good pictures is in the lighting, and as any pro will tell you, good lighting can compensate for virtually any de- fect; it can even change a sow's ear into a TROI silk purse (contrary to what they teach in The Shutterbug's Variac school). But while the pros have almost unlimited lighting controls most amateurs are relegated, even by the so- called lighting man- By uals, to pushing a few photofloods around the Herb Frieiman room and hoping for the best. W2ZLF 'KB19457 But really fine lighting is obtained by bal- ancing the lights, not by pushing them up, down and sideways. And right now, the only The right balance of device available to the amateur photographer light and shadow is the which can balance photo lights is our Photo - secret of any great work Trol, which can adjust photographic flood lights (or any other incandescent light for of art; it's also the secret that matter) from a dim glow to full bril- of excellent photography liance. In addition, since the Photo -Trol turns on the lights with reduced power, you can get up to six times the normal life from each set of floods. Why Photo -Trot Is Better. While the Photo -Trot uses an SCR (silicon controlled rectifier) it is unlike the other so- called lighting controls which are really motor speed controls. Motor speed controls are half wave devices, they can only vary the lighting from zero to about 70 percent of maximum brilliance. To get full brilliance the motor control must have a separate switch which by- passes the control and applies full power to the lamps. Further, the adjustment range of the motor speed controls is very narrow and a very slight adjustment of the knob makes the light jump from minimum to maximum almost instantly; not to forget of course that motor controls cause the lamps to pulsate when set to very low light levels. On the other hand the Photo -Trol uses a full wave SCR (called a Triac) which allows the light to be adjusted smoothly over the entire control range from a dim, barely dis- cernible glow, to maximum brilliance, with no sudden switching jump from 70 percent to full brilliance. The unit shown will handle two circuits, as most amateur photographers desire control over only two lights. However, you may place more than one light on each circuit or use a larger cabinet and build in three or

JUNE -JULY, 1966 55 PHOTO- TROL

Potentiometers R2 and R4 contain integral switches Si and 52. Rotate the pots until the switches click on; at this point, lamps will be about 50- percent brilliance. Then the pots can be rotated to give full brilliance or soft glow.

xl R2 R4 D2 SCR2

more circuits. With the components specified As shown above left, the chassis box com- each circuit will carry a maximum of 6 am- fortably houses all components of the Photo - peres or 700 watts. Up to 1200 watts can Trol. At the right, epoxy cement is being be carried by each circuit if type SC46B applied to SCRI; when cement hardens, mount major components. As shown below, the unit are substituted for specified Triacs SC41Bs. can be easily mounted right on your tripod. Construction. 1-he Photo -Trol is built on the main section of an aluminum chassis box approximately 2' /e x 3 x 51/4 inches. The specified SCR's do not have a mounting lug nor do they require a separate heat sink; they are epoxy cemented directly to the cabinet - the cabinet provides the heat sink. First, drill the cabinet for all the major components. Temporarily mount the potentiometers, fuse holders and sockets and then mark the positions for the SCR's; position the SCR's so they are not too close to other major components -then remove the components. Mount the SCR's in the following manner. Place a very thin piece of tape such as cello- phane tape or the plastic electrical tape on the cabinet -the tape should be no larger

56 RADIO -TV EXPERIMENTER F1

SECTION 1

SCR1 1_ SC4IB CASE GROUND Al Schematic diagram of the Photo -Trol shows the double

circuit -section 1 and section A2 2 -for control of two sets (CASE) of lights. Each section is rated TRIAC 6A. at 6 amperes or 700 watts. X2 TERMINAL DIAGRAM Details for increasing the power capacity are given in r --+ text. Use of plug Pl on the I SCR2 chassis box allows the box SC418 to be mounted on your tripod C2 with no permanently attached D2 SECTION external power cables to .1M FT 2' Sy ST2 get in your way.

than the base of the SCR; it is only an in- sulator. Apply a liberal quantity of two -tube PARTS LIST or hot epoxy to the C1, C2- .1 -mf., 200 -VDC mylar paper ca- cement SCR base and pacitor (or equiv.) place the SCR over the tape. Using a tooth- D1, D2 -Diac type ST2 (GE) pick, or similar item, pack epoxy all around Fl , F2 -6 -amp., 3AG -size fuse (See text) the base of the SCR at the chassis junction. P1 -AC 3 -wire plug for retainer -ring mounting When the epoxy hardens the will (Amphenol 61 -M or equiv.) SCR be R1, R3 -4,700 -ohm, 1/2-watt resistor insulated from and bonded to the cabinet - R2, R4- 250,000 -ohm linear potentiometer with the cabinet being the heat sink. Then with s.p.d.t. switch mount the major components. Si, 52- S.p.d.t. switch, part of potentiometers R2, R4 The SCR case is itself the second anode SCR1, SCR2-Triac Type SC41B, 6 amps., (GE) (A2) connection. Thoroughly clean a small ISee text) section of the case, preferably with sand- 1- Aluminum chassis box, 21/4 x 3 x 51- paper, and using a soldering iron rated 100 inches (Bud 2106A or equiv.) Misc. -Fuse holders (2), epoxy watts cement, line or less, tin the SCR. If possible, use cord, #16 wire, solder, hardware, etc. a very thin or low temperature solder. Make Estimated cost: $18.00 the connection fast; avoid applying heat for Estimated construction time: 2 hours (not In- an extended period to the SCR. When including epoxy curing time) stalling D1 use a heat sink on the leads. Fuses FI and F2 should be rated no higher the control until the lamp suddenly goes on- than the maximum SCR rating; 6 amps for the lamp -on point is at about 50 percent bril- the specified type (SC41B), 10 amps for the liance. Once the lamp is on R2 or R4 can optional type (SC46B). Use standard 3AG be backed-off, reducing the brilliance to a fuses, not slo -blow. Miniature glass circuit dull glow, or full -off; or, the control can be breakers can be used if they're fast -acting. advanced until the lamp is full on. In short, The 3 -prong power input, Pl, is just a the controls have a "backlash" in that the convenience, a power cord connected direct- lamp must go on first at about 50 percent ly can be used. However, regardless of the brilliance before it can be dimmed to a glow. power connection the leads should be #16 There are no precautions necessary in the minimum, not # 18 zip cord. Similarly, all Photo-Trol's operation. The lamps can be leads connecting to the Triac's anode "cath- controlled at light level or "snapped open" ode" (actually the first anode, Al) should to full brilliance instantly. A singing sound be at least #16 or heavier. from either the Triacs or lamps is normal Using the Photo -Trol. Connect the power (caused by the current pulses at reduced to Pl and the photofloods to X1 and X2. Ro- light level) and should not be a cause for tate either R2 or R4 just past the point where concern. Now get out there, tiger, and snap the power switch clicks in. Keep advancing away with the of Brownie like the Pros.

JUNE -JULY, 1966 57 Computer Talk

IJq Walt Miller "I see Ed Chambers is back!"

000 0 IN CAS oc e [MiQOUCy 0 BQfAK MASS

000000 =CID 000000 21=E1=1 2:1=1:1

MEE "... so much for Nevada. Let's check the demand for pearl -handled putty knives in Idaho."

I found the "You'll never guess how "Ws almost human!"' solution to that problem."

RADIO -TV EXPERIMENTER FREE CATALOG. 250 "Do -lt- Yourself" Electronic Kits At Up To 50% Savings WHY BUILD HEATHKIT ELECTRONICS? A desire for top -quality products at 50% savings, to be sure. But it goes beyond that. The reason people choose Heathkit is pride. Not just the pride of owning something new, but something a bit better that you have created yourself! From watching your Heathkit grow and take shape from your own efforts. It's a labor of love and a lot of fun. The large pictorial diagrams and simple, step -by -step instructions make it easy. And when you finish and turn it on you'll know that unique self -satisfaction that comes with "do -it- yourself." You will have joined the millions of people, from ages I l to 79, people with no special electronic skills or knowledge, who successfully build Heathkits. People like you! Give it a try. Your FREE Heathkit catalog is waiting for you now. World's Largest Selection Of Electronic Kits

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FREE Address COPY City State lip L Prices 8 specifications subject to change without notice. CL -215

JUNE -JULY, 1966 61 JOIN A RADIO CLUB By Tom Kneitel, Master SWL'er

Don't be a loner -tie up with a short -wave listening fraternity!

D Want to get the most from your hobby? tor. Elections kill some clubs, lack of new If you're a Ham operator, join the American members kill others. Radio Relay League. If you're a racing fan, We have screened through a number of join the Sports Car Club of America. If clubs and came up with a summary of the you're interested in DX'ing, join a DX club current crop of clubs -the ones which seem -any one of the many such clubs which to be making the grade on a rather perma- happens to suit your particular DX appetite. nent basis (one of these clubs has been going You mean, you never heard of DX clubs? strong since 1927). In addition to the listing, Shame on you, no self- respecting listener we are presenting a "universal" membership would dare touch his tuning capacitor unless application which may be used when con- he was affiliated with one or two DX clubs. tacting any of these clubs; just complete the These clubs publish detailed bulletins and form and send it in with your first year's newsletters for their members -some are as dues. thick as 50 pages per month! Typical con- If you aren't certain which club is the one tents of a club bulletin include reception re- for you, just about all of these clubs will ports from members, data on new stations, send you a sample copy of their current QSL information, lists of members who wish newspaper, all they ask is that you send along to swap QSL cards or recording tapes, and some postage (about 250. They are all shack descriptions. nonprofit groups and try hard to scrape The main problem in joining a DX club through "in the black" at the end of the year. is getting a hold on one which is here to When writing, please be certain to men- stay -oh yes, they have been known to come tion RADIO -TV EXPERIMENTER. and go from time to time. Some clubs start American SWL Club, % Gerry Klinck, up with a really great burst of enthusiasm 223 Potters Road, Buffalo, N.Y. 14220. Dues and are little more than a memory by the are $3 per year in this well established DX third edition of their monthly bulletin. Other club. They publish a 30 -page bulletin each clubs do really well until the one or two month which covers all phases of DX'ing. fellows who turn out the newspaper tire of The club has a large number of awards their work and can't find a replacement edi- (Continued on page 116)

DX CLUB MEMBERSHIP APPLICATION

To_ . Club Please enroll me in your organization. I am an active DX enthusiast. My interest lies primarily in the following aspects of DX My age is: I have been DX'ing since:. _ I have the following receiving equipment:

If I am accepted for membership, I will endeavor to make every effort to further the cause of good DX'ing. Signed: Name

I am enclosing $ _ dues. (Please use check or money order) Address: City:

RADIO -TV EXPERIMENTER State: Zip:

62 RADIO-TV EXPERIMENTER by Homer L. Davidson

Your finger is the key to this lock. Just memorize a few numbers -twirl the dial -press a button -and you're in!

You don't need a key for this lock. To A 12 -volt oc power supply must be con- open it just dial a few numbers. It's as structed for the stepping relay. The AC volt- easy as dialing your telephone. In fact the age from a 12 -volt filament transformer is Electronic Dial -Lock is built around two rectified by a 2- ampere silicon diode (a 6-volt telephone components. One is a telephone filament transformer and a voltage-doubler dial mechanism, just like the one on the rectifier can also be used- Editor) . The DC telephone that you use to dial your party. output is filtered with a 1000 -mf electrolytic The other telephone component is a 2 -cir- capacitor. The rectified Dc output is 20 cuit, 44- position stepping relay. volts without a load. When the solenoid The Circuit. The Electronic Dial -Lock is load of K1 is connected across the power very simple to operate. Just flip a switch supply (when the switch contacts of the dial and dial a few numbers. Pesto, like magic, mechanism close) the voltage goes down to the door latch buzzes and the door is 15 volts. unlocked. A latching relay (K2) was inserted into The stepping relay will select the correct the circuit to make the stepping relay (K1) contact position while you are twirling the pick out two numbers, instead of just one, telephone -dial assembly. For instance, dial as it goes through the 88 contacts (instead seven, and the stepping relay steps off seven of just 44). The latching relay cuts down contact points. the possibility of anyone finding the com-

JUNE -JULY, 1966 63 THE ELECTRONIC HOOK DIAL ASSEMBLY CONNECTIONS TO l-4 DIAL -LOCK GOVERNOR 1 2 3 4

Rearview of dial shows the few components that make up this pulsing- switch assembly.

the DOOR LATCH (through S4). If the wrong Simplified version of the lock is mounted contact is selected by the wiper arm for Row in partition along side of workshop door. 4 the alarm bell will ring when the push- bination just by chance since two definite button is pressed. If the correct contact has numbers must be dialed to unlock the door. been dialed the DOOR LATCH will buzz and Of course, the latching relay can be elim- the door may be opened. inated to reduce the construction cost -and Actually several latching relays can be the numbers to be dialed will be reduced to connected into the circuit -each one being only 44. energized by a particular contact on the With the latching relay in the circuit the stepping relay. You can even increase the problems of finding the "lucky" numbers are number of usable contacts by connecting doubled. Of course most locks can be the coil of one latching relay through the "picked" by the professionals. Yet, for contacts of another latching relay. For ex- limited -access use the Electronic Dial -Lock ample, by using these latching relays you can will serve to keep out "honest" people. The increase the effective number of contacts to lock is not fool -proof since the combination almost three times 88. In the alternate latch- can be found by triggering the stepping re- ing -relay circuit, dialing 40 pulses closes K2; lay one step at a time. To prevent this a dialing 78 more pulses -back to contact 30- pushbutton (S4) was added along with the closes K3; dialing 76 more pulses closes K4 alarm bell. and 65 more pulses brings you to contact 83 All the contacts in ROW 4 are wired to- completing the circuit through pushbutton gether except the one which is connected to S4. Of course dialing almost 260 pulses will

Ki ROW 3 Ki ROW 1 CONTACT 30 CONTACT 18 KS 4 ROW 4 T CONTACT 83 TO SI I I ! S4

OPERATE I CONTACT 14r TO SI TO S1

1 '1 LATCHING LATCHING LATCHING RELAY RELAY RELAY

OKI I ROW 2 CONTACT 40 This alternate latching -relay circuit can be carried out still further by adding even more relays. Complex contact combinations can be made with just a little time for experimenting.

64 RAnio -TV EXPERIMENTER Ti 01 N+ S3 s 7 6.3VAC + C1 p,. a

1000M DIAL ROW 1 START iv

START I1. t 117VAC a TO ADDITIONAL ui ROW 2 :s.+ - LATCHING RELAYS

K2 REMOTE DOOR OFF OPEN RELAY IILATCHING START $2 ti ROW S1 44; 3 :es K3 twrm. OPERATE DOOR LATCH

I2 ROW 4 SS ALARM BELL Complete circuit of an Electronic Door -Lock system with a tamper -alarm circuit included. The convenience of S2 will be appreciated only in a large workshop.

take some time dialing to hit the number door latch will energize only when the latch- just by chance. Anyhow, you can see how ing relay(s) are energized and the wiper arm extra latching relays can increase the security. for Row 4 is on the proper contact when Large -value capacitors across 6 -volt oc pushbutton S4 is pressed -the alarm bell will latching -relay coils with series dropping sound if the wiper arm is on any of the other resistors to the 12 -volt DC supply will prevent contacts. the latching relays from pulling in rapidly Operation. To unlock the door a combi- and a very definite pause must be made at nation of numbers are dialed. The stepping each number before the relay will pull in. relay will follow the pulses from the con- The dropping resistor should drop 6 volts - tacts of the dial assembly. The two wiper the capacitance of the electrolytic across the blades of the stepping relay sweep through 6-volt relay coil will determine the length of the 88 contacts of the four rows. To one con- time you must pause at the number dialed tact in ROW 2 we have connected a latching before the latching relay will pull in. relay that pulls in when this contact is made Other circuit components are a START and is "latched" by its own holding contacts light, START /OPERATE switch and the mag- which keep the coil energized until the fourth netic door latch. The START light only comes row wiper arm can make contact (or the on when the starting switch is in either the START /OPERATE Switch is set to the OFF or

START Or OPERATE positions and the ROW 1 START positions). In ROW 4 you wire one wiper arm is on contact L The magnetic contact to the magnetic door -latch circuit.

PARTS LIST FOR ELECTRONIC DIAL -LOCK C1- 1000 -mf., 16 -volt electrolytic capacitor S1- D.p.d.t. toggle switch (center OFF) (La- (General Electric XC1 -26; Lafayette 34R5517 fayette 99R6148 or equiv.) or equiv.) 52- S.p.s.t. pushbutton (remote door open) D1 -2- ampere, 50 -voll pry silicon diode (La- single door -bell button fayette 19R5007, or equiv.) 53 -Dial assembly (Olson Electronics PH41 or 11 -Pilot lamp, type 47 equiv.) 12 -Bell, 12 -volt 54- 13.p.s.t. pushbutton (Mallory 1014 or equiv.) K1- Stepping relay, 2- circuit, 44 contact (Olson 11 -12 -6 -volts centertapped 2- ampere filament 5W327 or equiv.) transformer (Lafayette 33R8119 or equiv.) K2- Latching relay, d.p.d.t. 12 -volts, 60 -cycle AC (Potter- BrumReld KA11AY; Guardian, 200 -12A coil, 200 -2 contacts or equiv.) Estimated construction cost: $25.00 K3 -Door latch, magnetic 6 -8 volts, 60 cycle AC Estimated construction time: 5 hours

JUNE-JULY, 1966 65 THE ELECTRONIC DIAL -LOCK

Above, thumb points to adjusting screw -it lengthens or shortens stroke of stepping relay action should K1 miss a step or two. Rearview of Electronic Dial -Lock (right) shows the locations of major components. The power supply is built as a separate unit.

The door latch is energized and lets the dialed 778 -99 for a total of 40 contacts after door open when the wiper contact lands on the START contact in ROW 1; the wiper arm is the correctly dialed number. on the latching -relay contact. To start the operation of the basic Elec- There are no connections to the contacts tronic Dial -Lock, flip S1 to the START posi- on ROW 3 so we can go through most of this tion. Now dial 1 again and again until the row rather quickly by dialing 0 twice - START light comes on. The wiper arm is now actually 20 pulses and 20 contacts on the on the START contact in ROW I. To get the stepping relay. wiper arm to go through the first row of con- After dialing 778 -9900 we are near the tacts the numbers dialed must equal the end of ROW 3, but if we don't want to dial remaining number of contacts in that row. two more numbers we must keep the hookup Since the first contact in Row 1 is the START point in front of contact 5 on ROW 4. Let's contact dialing 22 pulses will bring the wiper put the door latch connection to contact arm to the first contact in ROW 2. number 4. Now, just dial 9, press S4, the Let's use 778 as the first three numbers latch buzzes and the door can be opened. (we could use 944, 679 or any other three If the stepping -relay wiper arm goes be- numbers that add up to 22). Now before the yond contact 4 the magnetic door latch would latching relay (K2) can be energized through click or give a quick buzz as the wiping con- its contact in ROW 2, we'll have to dial a tact goes by if pushbutton S4 wasn't in the couple more numbers. Let's dial 9. This circuit. number plus the next number dialed will You must find the correct combination of bring the stepping relay wiper to the latching numbers so the stepping relay will stop at relay connection and the latching -relay con- the right contact -not one for the alarm bell. tacts will close. You may want to use your own telephone For example, assume that we have placed number, but to get past the sum of 60 pulses the latching -relay connection on contact you may have to add a number or two. In number 19 in Row 2. This is the fourth our number 778 -99009 we have a total of contact from the end of rotation. 69 pulses to step the relay K 1. The latching relay connections can be Fewer Numbers. To make the lock placed anywhere on ROW 2. But it is best to quicker to open you can leave out the added keep the connection toward the end of the safety of the latching relay. Not only will row so that more numbers will need to be this bring the cost of the project down it will dialed before the relay energizes. This also make the combination of numbers to open adds to the dial- switching confusion for any- the lock easier. If you leave out the latching one trying to open the lock without know- relay (K2) place the connection to the ing the correct numbers. magnetic door latch to the contact where the Dial 9 again and the stepping relay stops relay should be connected. You can place at terminal 19 of ROW 2. Up to now we have the magnetic door latch on any connection

66 RADIO-TV EXPERIMENTER Make all your tests before installing Dal -Lock in DIAL partition. You can use ASSEMBLY -' START LIGHT lamps in place of the alarm bell and electric door latch for testing. asis ON -OFF START Schematic diagram of the . ® OPERATE power supply (below) SWITCH ' shows how various voltages I IESZIEMIESEMINNSI are taken from unit with a , common ground terminal.

on Row 2 but it is best to use a connection near the end of ROW 2 for the added protection more numbers give. D1 + When the circuit is completed to the mag- 12.6VAC 15-20 netic door latch the latch will buzz -and VDC continue to do so until SI is thrown to the i. START CV OFF positions if you do not use pushbutton S4. When you want to lock the 6.3VAC door again you must dial a number to get the wiper arm off the door latch contact. can use a pair of long -nosed pliers and bend Most hardware and electrical supply the moveable center contacts downward. houses stock, or can order, the magnetic They should not touch -just be close enough (electric) door latch-particularly those in to make good contact when the coil is ener- areas that have many apartment buildings. gized. But before you start make real sure Minor Adjustments. Before the stepping that the contacts are clean. relay is mounted on the panel a few minor Construction. The Electronic Dial -Lock changes should be made. Unless you want to may be built on two chassis and located inside include an automatic reset circuit remove the the locked room while the dial assembly is contact leaves at the bottom of the stepping mounted in its own chassis box near the door. relay assembly. They are not included in The dial -lock as shown here was mounted on this circuit and are removed so they will not one chassis with a panel. The major parts, hamper the stepping action of K1. except the magnetic door latch are placed Since these relays are not new some have on the front panel while the power supply is connections soldered to them already. Some- wired in the chassis and mounted as an times these can be used for the alarm bell assembly. circuit connections-it won't matter if you Cut the panel to 81/2 by 10-inches--use interchange the rows of contacts (1 and 2 for hardboard, aluminum or steel depending on 3 and 4) if they happen to be wired already. how "secure" you want your dial lock to be. If the stepping relay misses a step now Drill all holes before finishing the front of and then you can adjust the stop point slight- the panel. The stepping relay mounts to the ly as shown in the photograph. left and the telephone dial assembly at the The contact points on the latching relay(s) top center of the panel. A 21/4 -inch hole may have to be closer spaced. (Leave well (drilled, punched or cut with a circle cutter) enough alone if possible. The contacts can is needed for the dial assembly so it will lay be cleaned with a strip of writing paper - flat against the front panel. After all the just draw it lightly through the contacts holes are drilled clean the panel thoroughly several times.) But if you become really for painting. Two or three thinly- sprayed desperate and want to take the chance you coats are better than one heavy coat but let

JUNE -JULY, 1966 67 THE ELECTRONIC over at least three times, quite slowly. Run DIAL -LOCK the AC line cord, through a grommet in the chassis, to the magnetic door latch. The length of this wire depends on how far the control board is away from the lock itself. the paint dry overnight to harden properly Open the Door Richard! Let's give it a before assembling the rest of the front -panel. run for the money, so to speak. You have The Power Chassis. The only critical part chosen the numbers that you want to use as of the power supply is Dl-it mounts directly the lock combination. So, flip the switch to the metal chassis which serves as the heat to START position. Rotate the telephone dial sink. This is very important. If D1 over- one step at a time until the START light comes heats it can be ruined in the time it takes to on. Set the switch to the OPERATE position. dial the combination numbers. Make sure Now dial your number combination and the the mounting hole for Dl has been properly door buzzes. Open the door and flip the deburred. The mica insulating washers are START /OPERATE switch to OFF. easily punctured by rough edges or stray If the door doesn't buzz, go through the metal filings that stick to the conducting complete cycle again. Notice when the latch- grease that insures complete contact for ing relay energizes. (You can hear it click in.) heat conduction to the chassis. Check the connection to the stepping relay. The Wiring. The job is quite simple, if When you come to the last number see if you start on one section of the circuit at a the wiper of the stepping relay stops at this time. Begin with the power supply wiring. contact. Then wire the telephone dial assembly and Be sure the stepping relay is not jumping stepping relay solenoid. In the photographs a step. Adjust the spacing at the rear of the you can see the correct terminals of the dial solenoid. Check the contacts on the latch- assembly to wire into the circuit. You will ing relay -see if they are ditty, or making note the small governor and contact points contact. Be sure this relay holds through on the dial assembly -keep them clean and the last two complete rotations of the step- free of chips and solder droppings. ping relay. Go over that wiring again. Now Be sure to use awg #22 (or one size have some of your friends or relatives try to larger) solid -hookup wire. Check the wiring open the door.

,,,, 1.,,,,,,,,., 1,10.,,,,,1,1.,,,111,,1.,,,,,,1,,,1,1,,,......

obtained. If you don't have access to a mod- RTVE's Audio Compressor ulation meter, peak the compressor by adjust- Continued from page 36 ing it while listening to your signal for best results. As this compressor provides a substantial Some Modifications. If the compressor amount of audio gain, along with voice com- is to be used with a high- impedance micro- pression, the output may have to be reduced phone, a transformer will be needed to match to prevent overmodulation with some trans- the high impedance of the microphone to the mitters. This can be accomplished quite sim- low- impedance input of the compressor. A ply by removing capacitor C3 from the cir- suitable unit would have a 100,000 -ohm pri- cuit. Without a bypass capacitor across R3 mary and a 1,000 -ohm secondary, such as the gain of transistor Q1 is reduced because the Lafayette 99 R 6034. of degeneration (negative feedback) in the When the compressor is to be used with a emitter circuit. If audio output is still too high transmitter which normally uses a low -im- readjust modulator or remove capacitor C5. pedance microphone, replace C6 with a 2- When properly used, voice compression MF electrolytic capacitor. can make the difference to a Ham, between Operation. With the OUTPUT control making or not making a contact with that (R8) and the COMPRESSION control (R11) rare DX station. Do not, however, be mis- fully counterclockwise, advance the output led into thinking that if a moderate amount control until the modulation reaches 100% of compression is good, that a greater on peaks. Next advance the compression amount of compression is better-it's not. If control until the modulation drops to about the COMPRESSION control is set too high 60% . Now bring up the output control. Re- serious distortion will occur, and actually re- peat this process until optimum results are duce the intelligibility of your signal.

!ló RADIO -TV EXPERIMENTER RADIO-TV EXPERIMENTER a1 CHECK

JENSEN Model CC -1

Stereo Headphone

Control Center

The Jensen CC -1 is a headphone control phone problems by combining volume and center designed to free the headset user from switching controls with "space- perspective" the immediate confines of the amplifier or correction in a single armchair sized cabinet. receiver. In addition, it provides "space per- Wire Talk. The CC -1 connects to the spective," an effect that compensates for the amplifier's left and right speaker output binaural effect -decidedly left or right terminals. Then a pair of leads are run from sound -common to headphone reception. the CC -1 to each speaker. One of the CC -l's As normally used, headphones are con- front panel switches determines whether the nected at the amplifier location so the user amplifier connects through to the speaker or can adjust volume and separation controls to the CC -l's headphone jack(s). Two jacks at his discretion. If the amplifier location is are provided so that two sets of 4 or 8 ohm not the most comfortable -which it usually headphones can be used simultaneously. isn't -an extension cord can be connected (The phones must be 4 or 8 ohms to insure to the headphone so the listener sits in his proper operation of the "space- perspective" favorite chair. Unfortunately, extension circuit.) cords mean the listener must get up to re- Once the speakers and phones have been adjust the amplifier controls. connected the CC -1 takes over local control A second problem with headsets is "sound of the amplifier's output signals. A ganged perspective." When stereo programs are re- volume control is provided that simultane- produced from a speaker, normal room re- ously adjusts the level of both channels. In verberation spills some of the right sound to addition, a separate balance control adjusts the left ear and some of the left sound to the level between the two channels. A third the right ear. Recording engineers, who use control determines whether just the left or speaker monitors, naturally hear the monitor right channel is fed to the phones or whether sound as you would in your home. However, the phones receive the normal stereo pro- the actual recorded tracks do not contain as gram or reversed stereo (left side sound to much center fill as much of the center fill the right and vice versa). The fourth control is provided by the room acous- intermixture EQUALIZER INDUCTORS SPEAKER / PHONE tics. Additionally, with speaker reproduc- SWITCH tion, there is a slight time delay -the left ear hears sound from the right side a fraction of a second after the right ear, and vice versa. When headphones are used for monitoring, both the room acoustic effect and the time delay are lost as the sound is fed directly into the ear; and on some stereo programs the sound appears to come from way out on the right and left with nothing in the VOLUME BALANCE TERMINAL STRIP CONTROL CONTROL j FOR EXTERNAL center -a most unnatural and unmusical CONNECTIONS effect. Shot of Control Center with cover removed The CC -1 Stereo Headphone Control shows wiring, controls, and terminal strip Center attempts to overcome both the head- for connecting both amplifier and speakers.

JUNE-JULY, 1966 69 selects either headphone or speaker. sound appears to be suspended in space The remaining control determines either somewhere's above and behind your head. mono, stereo or stereo with space- perspec- (Some listeners said the sound was above tive. In the mono mode the outputs of the and in front of the head.) We can safely left and right amplifiers are connected to- say that space -perspective definitely corrects gether (through suitable isolation resistors for early recording technique deficiencies. Newer recordings, in which the sound has been moved to the center stage by the recording engineer, are not in the least improved by space -perspective as the center fill already exists on the record. If anything, with good recordings, space perspective appears to add a bit of definition -sort of a boost to the midrange frequencies. While not generally noticeable on newer musical Five controls are spaced across the CC -1's recordings, space- perspective does appear to front panel. From left to right: Speakers "sharpen" the definition of choral works. (On -Off); Channel /Stereo (left, right, re- More Power to You. Quite naturally, verse, normal); Mono /Stereo (mono, regular, the CC -l's volume and balance controls as space perspective); Balance (increase left, well as the space -perspective burns up a lot normal, increase right); and Volume control. of audio enegry. While headphones are usu- See text for operation of space perspective. ally more sensitive than speakers, requiring much less driving power, the reverse is true to avoid having two transistor amplifiers when using the CC -1 as much of the am- short -circuit each other). plifier's output is used to compensate for the When set to the stereo -space -perspective CC -l's losses. We estimate that the CC -1 mode, equalizing networks are connected in requires an amplifier capable of delivering a the headphone circuit so that some of the minimum of 10 to 15 watts. right sound is fed to the left ear and some To Buy Or Not. If you need local control of the left sound to the right ear. However, of the amplifier switching and volume ad- while this sounds like straight center channel justments at your favorite armchair the CC -1 fill, it's really not. The cross -feed sound is will obviously fill your needs and can well delayed (via the equalizers) 0.4 milliseconds; be the only reason one needs to buy the unit. the time it would take cross -feed sound to If you're looking for a new dimension in reach the opposite ear when listening to sound better give the space -perspective a speakers. long listen at the Hi -Fi showroom; and take How it works. The switching and volume along your own records. If you've always functions are expellent, in the sense they do complained of excessive headphone separa- exactly what they're supposed to do. Except tion space -perspective might be your new for tone control adjustments, amplifier con- sound dimension. This is especially true for trol is moved to the listening location (it rock -and -roll, "bop ", and twist recordings. can even be in the next room). But if you've been generally satisfied with The space perspective depends upon what stereo headphone sound, space -perspective you think is good sound. On early stereo will probably offer no new sound thrills. recording with a decided ping -pong effect, Price is $52. For additional information or new recording with ping -pong, space - on the CC -1 Stereo Headphone Control perspective works well. Without it, the Center write to Jensen Manufacturing Co., sound appears to come from way out on Dept. KK, 6601 South Laramie Ave., Chi- both sides. With space perspective in, the cago 38, Illinois.

70 RADIO -TV EXPERIMENTER p3 CHECK

HALLICRAFTERS Model CB -15

Transistorized AM /Part -15

Receiver / Walkie- Talkie

If we needed a single phrase to describe Hallicrafters' latest CB walkie-talkie, the CB -15, we'd probably go for "Portable Com- munications Center ", for in a way the CB -15 is a communications center for people on the go. of these units could be used within The CB -15 is basically a nine transistor and two feet of each other without over- 100 -milliwatt walkie- talkie with two big a hundred load turning the modulation into undeci- extras -a built -in standard broadcast AM radio and about the most reliable construc- pherable hash. The CB -15 converts into a "transistor tion we've yet to run across in pocket -sized a slide switch equipment. radio" by simply throwing on the back of the case. Compared As a CB walkie- talkie the CB -15 is similar mounted most other pocket size radios the CB -15's in performance to any other high -quality to is First, the AM tuning pocket sized transceiver. It runs the legal performance superb. is on the top of the case, limit of 100 mw. input, has a 48 -inch whip dial, which located uses a slide rule dial taking several turns antenna and is goad for a range of about two cover the BC band miles in open country. of the tuning knob to and sensitivity Both transmit modulation and received from end to end. Selectivity radio standards) and audio quality is notably good, distinguished is high (by transistor filled with signals by very low distortion. Somewhat unusual, though the dial is virtually stations can be easily separated. the CB -15 is insensitive to receiver overload at night the Unusual for transistor radios, sensitivity on both the high and low ends of the band is high: there's no general loss of sensitivity as the radio is tuned to the high end stations. As with CB transceiver performance, the radio sound is exceptionally clean (again by transistor radio standards). The AM radio utilizes its own built -in loop antenna; extending the whip has no effect on AM reception as it's used only for CB. (Concluded overleaf)

Top of the CB-1 5 reveals the AM tuning dial. The whip antenna for CB communications telescopes out of the case. Neat packaging of the receiver/ walkie- talkie is shown at the right. CB crystals plug in for receive and transmit; AM antenna is built in; and battery BATTERY holder is spring loaded. AM LOOP ANTENNA HOLDER

JUNE -JULY, 1966 71 Small slide switch on the back of the case selects CB or AM operation. Jack is provided for earphone which comes with CB -15.

appear to be of the highest quality, and every single resistor as well as any other metal component which could possibly short -circuit if inadvertently moved is completely enclosed in a plastic sleeve. The six penlight (AA) batteries are housed AM /CB in a removable plastic battery holder which SELECTOR spring loads the batteries to insure good SWITCH contact. Earphone reception -an earphone is pro - vided-is available via a jack on the rear of EARPHONE the case. A second jack permits the CB -15 to be powered by an external battery pack EXT. POWER or AC power supply. (You'll have to build your own power supply as it's not an op- tion.) A Peek Inside. Removing the cabinet Complete with leather case, strap, ear- cover reveals some surprises. Both the trans- phone and earphone case -and naturally, mit and receiver crystals are standard minia- one set of CB crystals -the CB -15 is list ture plug -in type and the operation channel priced at $59.95. For additional information is changed by simply plugging in another write to Hallicrafters, Dept. PK, 5th & Kost- set of crystals. The individual components ner Aves., Chicago, Illinois 60624.

11.111111111.11113111111 We dare you to build it! TRICHOTOMETRIC INDICATOR SUPPORT

O 0837 FT

1016 CM

AMBIHELICAL HEXNUT

RECTABULAR EXCRUSION BRACKET (MIL -4-21111101 Before you accept the challenge, take a second look! Don't take a third though, 'cause chances are your eyes will make a couple of ambihelical turns and screw right out of your head! They may act like the unique nuts above; any attempt to remove them will only tighten them; for this reason the nut must be fully screwed on before it can be screwed off! -NAA "Operations and Service News"

72 RADIO -TV EXPERIMENTER W W W W W W W W W W W W W W W W \ ... M ! M ! ' f . OR A% e r w AM 'w. w , w. .r ma " w

Using the pert -board construction Build the technique you can build a variable tone siren that will wobble up and down Screamer in frequency controlled by a pushbutton.

Back in the not -so- good -old -days the even though the board is oversize, the re- circus announced it was back in town by sistors are mounted on end and a printed cir- having the band march down Main Street cuit type -both leads protruding from the playing Screamers, big brassy marches that same end-capacitor is used for Cl. To sim- attracted people and plify wiring, the tran- horses from ten miles sistors are mounted on out. The modern ver- the bottom of the sion of the screamer board with their leads the is let one sticking through the siren; 1 loose and you get the perforations to the right of way in traffic, wiring side. Q2's col- you can gather crowds lector connections are till you've got the made directly to the roádways blocked transistor case via lugs from curb to curb, or under the mounting you can set one off be- screws. hind your secretary While Q1 and Q2 and watch her jump [ are specified in the ten feet into the air. parts list, any low cost Even if your junk box is no more than equivalents can be used; just make certain an old coffee container stuffed with sal- Q1 is npn and Q2, pnp. It is possible for vaged parts you can throw together a a Ql with high leakage current to cause the Screamer, an electronic siren, for a couple of Screamer to pulse a tone burst every few bucks and an evening's work. Assemble the seconds even with trigger switch PB1 in the screamer on a piece of perf- board, as oft position; if it happens simply substitute shown, and you've got a unit you can tuck another transistor for Ql. out of sight in your pocket or under the Resistor and capacitor values are not dashboard. necessarily critical and the Screamer will The Screamer will operate off either 6 or work with anything close to the specified 12 volts. At six volts the current require- values. While the resistance values deter- ment is only 20 mils so you can get away with a small Z6 battery or four penlights if you want a small portable unit. (Actually, some low quality transistors will draw up to 50 mils on standby.) The volume depends on the speaker -any 8 -ohm type will do. A small two or three-inch transistor radio type speaker will just about strain the ears in a 10 x 20 -foot room, while a 12 -inch speaker, or a PA horn, will blast you out of the house. R3 R2 the Screamer. The electronics is Building More than enough space is available on the assembled on a stock size piece of perforated perf- board; however, mount the resistors on wiring board no x 33/4 inches. Flea clips end -start saving space as a matter of prac- are used as tie points. To avoid a parts jam, tice because that next project may be crowded. î3 JUNE-JULY, 1966 C2 /.02 Capacitor C2 provides the nec- 02 SPKR essary feedback to bring the Ql 841. 2N2102 b audio amplifier circuit into oscillation. Try different values b for C2 (see text) to alter IOWATT e the Screamer's ouput pitch. R2 R3 PNP 56K 56K

Cl + The finished Screamer (below) 6-I2VDC 30 is relatively flat 0111+ e-- and will fit Rl nicely into a plastic jewel box. S2Z ON- 27K N--

PARTS LIST B1 -6 or 12 -volt battery (See text) C1- 30 -mf., 15 -WVDC electrolytic capacitor C2- .02 -mf., 75 -WVDC or higher (See text) Q1- 2N2102 or any general purpose npn audio transistor Q2 -10 -watt, pnp power transistor (Lafayette 19R1501 or equiv.) R1- 27,000 -ohms, 1/2 -watt resistor R2, R3- 56,000 -ohms, 1/2 -watt resistor S1- S.p.s.t. on-off switch S2- Normally off push -button switch SPRK1 -8 -ohm loudspeaker (See text) Misc -Perf -board (Lafayette Radio 19R36051, Flea clips (Lafayette Radio 19R33011, wire, solder, etc. C2 Cl

mine the output frequency(s) to some de- tone will be heard in the speaker. Releasing gree, C2 has the greatest effect. The speci- S2 will cause the tone to slide downscale. fied value of .02 mf. produces a high pitched If S2 is alternately closed and opened the tone just about equal to that of the new po- output will be a rising and falling wail. lice type electronic sirens. To lower the Just one note of caution. The police of tone increase C2's value: to raise the pitch most communities frown on the average citi- decrease C2. -any value from .01 to .1 mf. zen opening up holes in bumper- to-bumper will work. traffic with a siren. If you get any ideas Using the Screamer.Turn the main power about sticking one in your car just make switch. SI, on. Then press the normally open certain you hold some position that entitles push button, S2. When S2 is closed a rising you to a siren. -Herb Friedman

Zip Along Zip Numbers An electronic engineer tests the new revolutionary high -speed ZIP Code "reader" in the highly mechanized Detroit Post Office. The "reader," attached to an existing letter sorter, is designed to sort incoming and out- going machine- printed ZIP Coded mail to 300 separations at a rate of 36,000 letters per hour. The system, using two electronic scanning units, examines the face of each envelope, locates the ZIP Code and then in- structs the letter sorter where to distribute each letter. In addition, the machine is capable, at the flick of a switch, to sort incoming or local mail directly to letter carrier delivery routes within the city. The equipment is the first of its kind in the world.

74 RADIO -TV EXPERIMENTER By C. M. Stanbury II Propagation Forecast June /July 1966 Conditions for these next two months will 41 -meter frequencies below 7200 kc. best. only CW be described by many as "normal." Which U.S. 'hams are permitted to use means that most distant reception will occur here and crystal selectivity with the phasing this QRM. above 7 mc. due to that combination of a control can eliminate some of rising sunspot count and a peak output of Despite its expanse and widely differing summer static. The situation is good for day range of distances from the U.S. and Canada, after day reception but pooi- for really spec- we have always treated Latin America as tacular DX. one reception area and for most time periods Excepting Latin America, most rare DX this method works well. But note that at 16- is listed there is will be found on 41 meters. Even 1500 -1800 listener's time, meters least there, interference from amateur stations specifically for Brazilian reception. At will become an increasing problem for 7 Brazilian stations operate up here and that SWBC hunters. This reverses a trend of the many will have clear channels during past couple years when broadcast trans- period. Further, we can expect compara- Amer- mitters pretty much dominated the band tively improved reception from South during hours of darkness. If your receiver is ica below the equator on all bands. Remem- blessed with crystal selectivity, you will find ber t'is winter down there.

2 2 0 0 0 1 1 2 5 1 4 LISTENER'S 0 3 0 0 0 TIME 0 0 0 0 0 0 0 1 1 I I I 1 1 1 1 1 1 1 1 STATION AREA 19 25,19 ASIA (except 25--(25,16) Near East/

EUROPE, NEAR 25, 31, 4- 31 EAST & AFRICA 31. 4111.. -4-31-0-1+19-1.-0--16, 19 (N. of the Sahara)

1 31 AFRICA (South 41--i(p pr),i+nily-t-- 16, 19 31 41' of the Sahara)

19 1910. -.111-25-i SOUTH PACIFIC 31 41, 49 -4-25^41-4--(poor) lpoor) i.r16,

16,250.- 9 LATIN AMERICA -F---49160-0- i- (31) (poor)

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

JUNE-JULY, 1966 75 New

for óúr Work Buch

if you are one of those people who feels Lafayette Radio Electronics Corp. as well as that building your own workbench or rack hardware and building material outlets carry for test gear or ham station is a bit beyond the Dexion product line. your talents as a craftsman, you can now Making the Bench. Your first step will cast that reservation aside. We've uncovered be to cut the slotted angle to size using an a steel framing material called slotted angle ordinary hacksaw. To get the most out of that will enable you to build a tailor-made, your material follow our cutting schedule in professionally finished unit, using the very the Materials List by sawing your longest simplest of tools -just a 7í' wrench and a lengths first, followed by the next in size, etc. hacksaw. Slotted angle goes together with Dexion slotted angle is embossed with dia- nuts and bolts much in the same way as a mond marks at one inch intervals and it is boy's Erector set, and it's just as much fun important for proper alignment to cut exactly on these . . . but, don't let the kids know. marks. To build this handsome, split level bench Once all your slotted angle has been cut you can begin you'll need 41 feet, 10 inches of .clotted angle, assembly by bolting your two side frames together. These are the plus a few accessory items. (See Material four legs and horizontal side pieces that List.) Dexion's 125 slotted angle, the size join the legs on each end together as shown in the Detail we chose for this project, is packaged in Drawing. Be sure to use the corner quantities of 52' (eight 6'6" plates lengths). Each at all points shown. package also contains 75 nuts and bolts and Now tie these two frames together using 20 corner plates and sells for approximately members A, B, and C. Next, bolt members $12.75 a package. Special plastic feet that D, E, F, and G into place. All bolts should slip onto the ends of the slotted angle are be finger tight at this point. You can now available separately. Both Allied Radio and install your 3/4" plywood decking on this first

76 RADIO -TV EXPERIMENTER CUT ON DIAMONDS

t4"

You can rustom make your hobby area to zy suit the job. The shelf height can be designed to accommodate test instruments or hate gear. Storage shelves 39' can be added under bench top for tools, gadgets and hooks.

level notching it approximately 7" back from It's Up to You. The work bench illustrated its rear edge in order to clear members D in this article was designed to serve as a and F. Once this has been completed. bolt bench in a ham shack that could serve equal- the rest of the members into place (H ly as well as a work surface during repairs through L). Now lay your top level decking or project construction. The design is basic into place and fix both levels permanently in and can find countless applications. How- position with wood screws. You can now ever, don't let us design your work bench. tighten all bolts until every joint is absolutely Conjur up your own design at the drawing rigid. board, it's easy to do and the end result usually is great. For a test bench, shelves are often the best MATERIAL LIST arrangement for instruments while the setup Project requires 1 - --A package of Dexion 125. for a Ham station may be better if the lay- 41'10" of slotted angle, 20 comer plates and out is designed to accommodate the standard 72 nuts and bolts. The 19 -inch wide panel 4- Dexion 125 plastic feet relay -rack panels. 1 -1/4" plywood 39" x 24" is the most common. 1 -1/4" plywood 7" x 39" For more information about Dexion slotted CUTTING SCHEDULE angle write to Dexion, Incorporated, Dept. ® -7 pieces at 39" = 22' 9" 1S, 39 -27 59th St., Woodside, N. Y. 11377. © -2 pieces at 29" = 4' 10" © -1 piece at 27" = 2' 3" They've just published their latest "idea pam- C)-4 pieces at 24" = 8' 0" phlet" which illustrates a variety of twenty- © -2 pieces at l0" = 1' 8" one applications for slotted angle, ranging pieces at 7" = 2' 4" 0-4 from a workbench to a bicycle rack. It's 41' 10" 20 pieces yours for the asking.

JUNE -JULY, 1966 77 If you've ever thrilled at the sound of a be hearing them not only on, but also in be- distant "skip" CB station rolling through on tween, the CB channels. your CB rig, you'll really flip when you be- The Subject Is Tabled. So that you can gin hearing stations in Russia, Japan, France, really enjoy DX'ing the world on your CB and many other countries. You've never rig, we have prepared a listing of most of the heard them? Don't worry, you soon will. stations you are apt to hear on 11 meters. CB "skip" is governed by ionized layers of Your vertical CB antenna will probably do a the ionosphere above the earth, which, in nice job on these stations, even though the turn, are affected by sunspots. When there majority are using horizontal polarization. are plenty of sunspots, the "skip" gets heavy, This is because when the signals bounce off and it can cover many thousands of miles. the ionosphere, their polarity is usually During the past few years sunspots were on switched around (at a power loss, natch). vacation, but scientists tell us that they're on For monitoring of CW stations, it is sug- the way back. They predict that within a gested that you either build or buy a beat very few months the 11 -meter CB band will frequency oscillator (BFO). be wide open for world-wide signals -much Listening here can also be fruitful, a num- the same way it was back in the late 1940's ber of very juicy QSL cards have been ob- when 10 -meter hams were working around tained from a few of the earlier band open- the world with 20- and 30 -watt rigs. ings. Because of the fact that the countries of So here's your key to hearing the world the world outside of the western hemisphere on a CB rig -the mysterious Russian "CB" have very little CB activity, the 11 -meter network of 1,000 watt stations, a French band is used by many high power commercial Navy network, some low powered Japanese CW and 'phone stations, about 150 of them. "fishing" stations, and even a harmonic of a You will shortly be hearing these stations, Mexican station operating ón 6 megacycles. some of which run many thousands of watts. So listen closely, gang, you may be the first Since they don't have to in your neighborhood to hear i abide by FCC CB ,,.. someone say "symdjesjat 1;; , , ,,.,, channel restric- ;,!It,,,,' .;.117 ,

1,.,' tri' (that's a d.1ïIüi1'11u1.V 1 I1 tions, you'll \\1 /Ii/i. y// ./f R u s k i e C ..73 '''''' //% / /!. ").

rlw..dl11ll1 ''; ''';;Ï,'j i'

Here's your chance to log hot DX during early morning quiet hours. Keep the FCC happy while you SWL!

78 RADIO -TV EXPERIMENTER II -METER STATIONS AROUND THE WORLD on When stations are authorized to operate on a CB channel, the number of the CB channel is indicated the left. All other stations operate between the indicated CB channels and can be heard only on tunable CB receivers

CB Kc/s CB Ka/s Location Watts Typ Chan- Call Location Watts Typ Chan- Call nil nel USSR 1K AM/CW 26960 "Nagasaki" Nagasaki, Japan 30 AM - 27089 UTX4 Gurlen, - France 20K CW MUJ Nairobi, Kenya 10K CW 27090 FYZ29 Paris, Mali 20K CW RXD Novosibirsk, USSR 15K AM/FM FZ B51 Bamako, FZQ70 Papeete, Tahiti 20K CW 27095 UTY5 Ilek, USSR 1K AM/CW 1 26965 TDTZ2 El Rancho K87, Guat. 5 FM Calgary, Alta., Can. 10 CW TDTZ3 El Rancho. Guat. 5 FM 27100 C1Y74 Regina, Sask., Can_ 30 AM ASS37 Pipri, Pakistan 20K CW CJY63 B.C. Can. 50 AM OAAT3 Izcozazin, Peru 5 AM C1Y43 Vancouver, 4UP Karachi, Pakistan 5K CW Taldy, Kurgan, USSR 1K AM/CW - 26966 UN Paitigorsk, USSR 1K AM/CW 27103 UBM6 26969 RQE8 Farich, USSR 1K AM /CW UBPX Kirillov, USSR 1K AM,'CW 26970 MKG Stanbridge, England 25K SSB 12 27105 26972 UWMZ Tchernaia, USSR 1K AM/CW 27109 UWWZ lusenghi Gora, USSR 1K AM/CW 27110 GEW Aden, Aden 40K CW 2 26975 "St. Pierre" St. Pierre I. 5 AM FYZ31 Paris, France 20K CW Nairobi, Kenya 25K SSB 26979 UWBC Karadonly, USSR 1K AM/CW GE127 - 6VK527 Dakar, Senegal 20K SSB,CW 26980 "Miyazaki" Miyazaki, Japan 30 AM Ryukyu Is. 5 AM 26985 FLE62 Paris, France 1K CW 13 27115 KUO Okinawa, 3 60K AM, CW "Cordage" Spanishtown, Jamaica 5 AM UWIT Odessa, USSR OAAT3 Izcozazin, Peru 5 AM 1'hK CW GAQ46 Criggon, England 10K RTTY - 27120 PWZ I. Governsdor 1K AM-CW ART Lahore, Pakistan 40 FM 27123 UEWS Milskii, USSR Lahore, Pakistan 40 FM - 26988 UBZ6 Vladimirazaliv, USSR 1K AM CW 14 27125 ART 26990 5R21 Tananarive, Madagascar 5K CW TN171 Brazzaville, Congo 20K SSB, CW 26994 UGL5 Churschi, USSR 1K AM CW - 27130 Havana, Cuba 100 FM 27000 FLE61 Paris, France 1K CW CLA 20K SSB CW DYV22 Dumaguete, Philippines 10 FM FYZ33 Paris, France Phil. 400 AM CW DYV21 Sibulan Negros, Phil. 10 FM 27140 DZR47 Bigaa Bulacan, USSR 25K AM CW RVU Vladivostok, USSR 15K AM CW RKI Moskow, PTR2A Fernan Noronha, Braz. 21/2K AM CW 27003 UTEF Ust Urgal, USSR 1K AM CW 27150 NSS Washington, D C. 15K CW Narina Khuduk, USSR 1K AM /CW 4 27005 RUH6 Itcha, USSR 1K AM CW 27153 URL4 USSR 1K AM /CW OAAT3 Izcozazin, Peru 5 AM 27159 U1G6 Lerik, 30 FM DIB56 Manila, Phil. 5 AM 27160 "ITO" Ito, Japan PBK27 Kootwijk, Neth. 4K - 27006 LH5 Olivos, Arg. 500 CW 17 27165 27010 D Z21 Bonames, Germany 20K AM CW USSR 1K AM/CW FYZ21 Paris, France 20K DSB,CW - 27168 UWOL Leningrad, Neth. 3K FZ847 Bamako, MLI 20K DSB/CW 27170 PBK37 Kootwijk, Pakistan 50 AM 27012 LRB201 Gen Pacheco, Arg. 30K AM;CW ARS32 Chittagong, 27013 UXPS Tachkumyr, USSR 1K AM/CW Neth- 4K CW 27020 "Ashizuri" Ashizuri, Japan 30 AM 18 27175 PBK47 Kootwijk, 27023 UBYT Tsagheri, USSR 1K AM/CW - 27178 UNM4 Oranjereinyi, USSR lK AM/CW 27180 Misaki, Japan 30 AM 6 27025 LRB202 Gen. Pacheco, Arg. 30K AM, CW "MISAKI" 27183 CXL44 Montevideo, Uruguay 21/2 K SSB Sovetskia, USSR 1K AM; CW 27030 JAW42 Osaka, Japan 10K CW 27184 UBQ7 - 20K CW RBT Irkutsk, USSR I5K AM/CW 27190 FYZ39 Paris, France Tananarive, Madag. 20K CW 27033 UWAP Ustbolcheretsk, USSR 1K AM,CW 5RZ71 Soliiskoe, USSR 1K AMiCW 27034 LQC33 Mt. Grande, Arg. 30K AM;CW 27196 UWII 27200 PTA Rio de Janeiro, Oraz. 1K CW (6 stations in France) 10 FM 7 27035 GFM Nairobi, Kenya 30K CW GFM Nairobi, Kenya 25K CW "CRASH 27040 FYZ24 Ste. Assise, France 20K CW - 10 FM "Morioka" Morioka, Japan 30 AM TRUCK" Manila, Phil. 27043 UWGP Stavropol, USSR 1 K AM ,'CW UIZ Altyn Mazar, USSR 25K AM/CW 27044 LRB204 Gen. Pacheco, Arg. 30K AM CW 20 27205 27045 0XT27 Skamlebaek, Den. 10K DBS CW Mer, USSR 1K AM;CW 27053 UBI Ust Niman, USSR 1K AM CW - 27208 UWSQ Paris, France 20K CW 27059 UZPD Tamdy, USSR 1K AM, CW 27210 FYZ41 Bamako, Mali 20K CW 27060 FUB Paris, France 10K CW FZH41 FZ Djibouti, Fr. Somaliland 20K CW 27060 "Sendai" Sendai, Japan 30 AM K72 Congo 20K CW XDA75 Mexico, Mex. CW 27220 TN172 Brazzaville, 20K CW (harmonic of 6765 kc) FYZ42 Paris, France 6X5 Diego Suarez, Malagsay 10K CW "HAKO- Hakozaki, Japan 30 AM FUF Ft. de France, Martinique 10K CW ZAKI" Noumea, New Caledonia 20K CW FUl Noumea, N. Caledonia 10K CW FZN72 Pioner Sovkhoz, USSR 1K AM, CW FUM Papeete, Tahiti 10K CW 27226 UWNX Paris, France 20K CW FUW Dakar, Senegal 10K CW 27230 FYZ43 Ft. de France, Mart. 20K CW FUV Djibouti, Fr. Somaliland 10K CW FIG72 UF K6 Turii Rog, USSR 15K AM/CW 27235 ART Lahore, Pakistan 40 FM 9 27065 UEYS Ust Kiahkia, USSR 1K AM,CW 27238 UWMU Krasnovodsk, USSR 1K AM,CW 27240 CML San Pedro Bauta, Cuba 5K CW AM CW - 27071 URW5 Katan, USSR 1K FYZ44 Paris, France 20K CW GXC Mauritius 10K CW 10 27075 GAQ47 Rugby, England 30K DSB 5RZ72 Tananarive, Madag. 20K CW TDAN San jose, C.R. 5 AM FZG73 Ft. de France, Martin. 20K CW 27244 UWPF Kenimekh, USSR 1K AM CW - 27077 UZBS Kkhutsin, USSR 1K AM/CW 27250 XDDB Hermosillo, Mex. 500 AM FM 27080 UMP4 Piltun, USSR 1K AM CW XDDC Merida, Mex. 500 AM FM 27083 UZDS Kutaisi, USSR 1K AM,CW XDDA Mexico, Mex. 500 AM FM HBU57 Bern, Switzerland 40K CW USSR 1K AM,CW 11 27085 RS17 Olotchi, USSR 1K AM/CW 27253 UVK7 Kzyl Orda,

JUNE -JULY, 1966 79 Transformer for DC Take back your primary, ay, your secondary, ay, your iron core, ay, ay, ay! Sounds hot? This DC transformer needs liquid helium!

Working with extremely thin films of tin former, the device marks the achievement deposited on a glass slide, a General Electric of a goal that had eluded researchers ever scientist has built and operated a laboratory since the alternating current transformer was model of a direct current (DC) transformer first demonstrated nearly a century ago. -long considered an "unachievable" sci- AC vs. DC. AC transformers consist entific goal. The device is a result of research basically of two separate wire coils placed on superconducting materials-metals and near one another. When an alternating cur- alloys that have zero electrical resistance and rent is passed through one coil (the primary unique magnetic properties at very low tem- winding), a changing magnetic field is pro - peratures of liquid helium. duced -one in which the magnetic lines of General Electric physicist Dr. Ivar force travel first in one direction and then in Giaever disclosed that his DC transformer, the opposite direction. This changing field which can convert a direct current input induces an alternating current in the second into a larger or smaller direct current output, coil (the secondary winding). Conventional has been operated at very low voltages and AC transformers are unable to transform currents with an efficiency of about ten per direct current -which, in materials with cent. Although no immediate commercial conventional magnetic properties, sets up an applications are foreseen for the DC trans- unchanging magnetic field. In Dr. Giaever's new DC transformer, the SECONDARY FILM and the secondary windings are DC INPUT primary DC OUTPUT made of thin tin films, which belong to a PRIMARY FILM family of Type 11 superconductors. When VERY THIN INSULATING LAYER an ordinary superconductor is placed on a -4111111P \ \ magnetic field, the metal excludes the mag- \ netic lines of force. Type 1/ superconduc- N MOTION OF 'FLUX SPOTS' tors, on the other hand, can be penetrated by

SECONDARY FILM a magnetic field -but only in so- called "flux

INSULATING LAYER spots." When a direct current is passed

PRIMARY FILM through the tin primary, the magnetic flux spots begin to move in one direction relative In the new DC transformer discovered by Dr. Ivor to the film. In the DC transformer, these Giaever, the primary and the secondary are made flux spots also penetrate and move through from two thin Elms of tin. When the DC transformer the adjacent secondary film. As a result of is cooled to liquid helium temperatures and a direct current is fed into the primary, magnetic "flux spots" this moving (and hence changing) magnetic begin to move in one direction relative to the pri- field, a direct current is induced in the sec- mary film. These flux spots also penetrate and move ondary film. through the secondary Elm, which is only on the order The magnetic field fluctuations produced of .000001 inch away. As a result of this moving (and hence changing) magnetic Held, a direct current is by the primary of the DC transformer exist induced in the secondary film. By placing a number only very close to the film. Thus, the sec- of secondary films in series, o secondary voltage can ondary film must be placed no more than be developed many times higher than the primary about .000001 inch away from the primary voltage. Similarly, by placing o number of primary Hints in series, the output voltage can be "stepped film. In Dr. Giaever's experimental devices, down" below the input voltage -transformer stylel (Continued on page 116)

RADIO -TV EXPERIMENTER Bats in your belfry? Just tune in YZUN now!

I took a swipe at friend bat perched atop She whispered softly, "Papa's got the the console, it hovered menacingly over my money." head for a moment. "I outrank you, bird." Count Y's real name is Fred Gant and It made a mock pass at yours truly's left ear he's a veteran con artist who used to work then went off and sulked in a far corner of through a Mexican border station at Mata- the studio. Besides outranking him, I'm also moras until his electronic device for warding not superstitious. If I were, I never would off witches and werewolves was even too have kept this job a whole month. much for them. So he turned the coin over, I turned on the carrier, let it warm up a became a vampire himself and went maritime moment then went on the air. "This is Ra- mobile. But he still gets his mail through dio Station YZUN transmitting from Motor the same Brownsville P. 0. Box. Vessel Vampire." So we drifted a little. I let the turntable move on to another "YZUN is owned by Count Y from the cut, "Gloomy Sunday," without making an planet Zunar. Your announcer is Knight announcement. "How soon's he supposed to X." I was the announcer every morning. be back from Progreso with that photogra- And evenings too! Started the program off pher?" with some spooky music. "Anytime now." She looked over my Princess Q entered the studio noiselessly, script. noted that my mike was off. "Studio already "Good. I'm hot as the devil in this out- for the Count's publicity pictures ?" The fit." I had another complaint for Count Princess served as YZUN's station manager, Y too. secretary and general girl Friday. "Where's the Spanish version?' She re- "Complete with yonder bat." The thing turned the script. flapped his wings and I displayed my long "In my pocket. Hush now, I've got to gray cape. start on this." Gloomy Sunday faded out "And how do I look ?" she said, posing in and I opened my mike. "It is time. It is her low -cut snow -white shroud. time you joined the Reformation. It is time "Succulent." you sent for that first book of instruction." "Down man, Countie gets jealous, remem- Princess sat down in that corner furthest ber." She considered it and laughed. "He's from the bat. the worrier type." "We have been sent by Zunar, 12th planet "The man should worry. He's old enough from the Sun, to show you the way. Vam- to be your father." pires live forever if not corrupted by mor- CALUNC AL VAMPIRES C.M. SIABURY II

Juxe -JuLY, 1966 81 tals. Therefore all mortals must become vam- I laid the camera down atop my console. pires." Assumed my most serious tone. "If "Take five, Count, there's something I want you do not join us, Zunar will send its space to talk to you about." army and conquer the Earth." Like he'd just seen the wooden stake. "You Bat took off, crossed the room, and tried want more money ?" Took a long deep to perch on Princess' shoulder. She shivered breath. "Where was it you were working a little and chased it away. before you tied on with Pops, some little "You need that book of instruction. Oh, station at Piny Swamps ?" how you need this book. It's only two dol- "Something like that." lars, just the cost of printing." Switched to "And you got fired from the job." my hungry tone. "Do it now. Send us two "It's not money I want, it's shore leave." dollars by cash, check or money order." To signal his support, the bird rat flapped I cued in some more music just as the both wings. Count filled the doorway. He was alone. The Count grinned and mopped his brow. The Princess got up keeping one wary eye "Sure, when we get back to Brownsville next month." "No, I want to go into Progreso tonight." Assumed my most determined bearing. "I haven't been off this scow for a month." "You can't do that, boy. It'd spoil our image." The bat hovered over the Count's head but he ignored it. "Well, I wouldn't wear the cape or nothing." The Count laughed, big put on friendly laugh. "Oh, they'd still put gringo and gringo together." He slapped me on the back. "We've had enough of this picture taking business for today. Go on over to your cabin and take the day off." Deadly serious. "I'll announce the evening show myself. Go on now, that's an order." on bird. "Where's }our photographer ?" So I did. He shrugged. "The Mex wanted too And brooded. When it got dark, bat came much." Produced a camera and a box of and flapped at my door. I let him in, then flashbulbs from beneath his long black cape. we both brooded together. Not only did the "Decided to do the job myself." Princess have a heart of silver, literally, but Of course when YZUN broadcasts in this job with YZUN was taking me nowhere Spanish, we were always careful to say fast. Just like the ship itself, I was anchored. "Mexicano." Then, the Count was not only a tight fisted Hands on hips she shook her head. "Papa, phony, but stupid and ignorant too. He's I knew you were tight but this is ridiculous." still back in the 18th century when vampires He stuck a flashbulb in his camera. "How spent their days hiding in coffins. do you think the old count has stayed in Bird flapped his wings in agreement. business all these years." You really don't talk people into becom- So I spent the rest of the morning trying vampires, no matter how many watts ing to announce and pose at the same time. YZUN put out. Soon the novelty would wear The Count was so unsure with his camera off, the revenue would drop off and just like that he'd take each shot ten times. We that comes the end of the road. spent twice what that Progreso photographer "Agreed." would have cost us. And when not announc- So that left me no choice. I turned my- ing, I had to take pictures of him. Around self into a bat and along with bird flew out 1400 the Princess was fed up to here with through the porthole, circled the antenna the picture bit. She went up on deck for mast once and headed into Progreso. Like I some air. keep telling the brass back on Zunar, there's He ran over his work mentally. "Let's only one way to make people into vampires. see, we need another shot with me and the And come tomorrow morning, YZUN will bat." have lots of new listeners.

82 RenIO-TV EXPseraaENrca Electronic Light Watchman by Edward P Nawracaj

Headlights or parking lights can't accidentally run down the ignition- system storage battery when this little computer is on duty - always alert.

AMP

`i 40*

fir. NNO DOUBT you have at one time or another parked your ca -, locked it and walked off. Only looking back, by chalice. :Hi you discover that you had forgotten to turn off the lights. Surr, its an Inconvenience to go back and shut them off -but it's better than returning several hours later and making that discovery after your battery had run town to where it couldn't start the car. Here is a warning device to connect to your car. It Sounc s al alarm and flashes a light whenever you turn your ignition off uul leave your lights on. A simple computer. This circuit has been designed to indcate whether certain voltages are present or absent- whether the headlights are on when the ignition is off. The circuit nscs two npn transistors- both are wired to art :ei switches. When a positive voltage is applied to their base cirri its they become a closed switch (the trans:stor is saturated). Wit lout voltage at the base the switch is open (the transistor is cutoff.. in the schematic diagram ( Fig. 1) transistor Ql (cunt uid mesa raf)

JUNI -JULY, 1966 83 is a logic circuit: Q2 is just a switch for indi- When both the lights and ignition are on cator lamp 11 and a contact protector for K QI conducts because the collector and base (Il draws about 150 milliamperes -the coil are at the same potential (+ 12 volts). Ql is of KI about 20). As warning indicator Il now a closed "switch " -current flows blinks or flashes rapidly, as K I also clicks out through Rl and relay coil (KI ) is shorted its warning that your lights are still on. by Ql and the relay contacts remain in their How it works. Referring to the schematic normal (deenergized) position. Again no diagram (Fig. I ) let us first assume that alarm is sounded. both the automobile headlights and ignition The alarm will be given only when the are turned o/7. Since the entire circuit is headlights are left on and the ignition is without power no alarm will sound. turned o//. When the ignition is off the With the ignition turned on and the head- voltage applied to the base of Ql is absent. lights o// (as you would for daylight driving) The collector -to -base current through Q1 voltage is applied to the base of Q 1 but none stops and relay coil K I is not shorted any is applied to the collector because that cir- longer (its "switch" is open) . Resistor Rl is cuit gets its voltage from the headlight switch now in series with the coil of K) and, since which is o//. Some base -to- emitter current their resistance value is about equal approxi- flows in Ql but not in Q2- without collector mately half of the 12 volts from the battery current an alarm cannot be sounded. will appear across Rl and the rest across

A WHI TO LIGHT It SWITCH 71

01 2N3053 R2 B RED

TOIGN! 5.6K

GNDBLACK - - J BOTTOM VIEW Completed unit above is held into chassis box Ql, 02 only by the pilot -lamp assembly jewel bezel.

PARTS LIST Fig. 1. In the circuit above, capacitor Cl can be increased in value to slowdown clicking C1 -75 -mf 15 -volt electrolytic capacitor of relay K1 and flashing of warning lamp I1. F1 -Fuse, '/2 -amp, instrument type ll -Pilot lamp, Type 47 K1 -volt, 335 -ohm coil (Potter 8 Brumfield FI -6 RS5D) Q1, Q2- 2N3053 or equivalent npn transistor

R1- 330 -ohm, 1 -watt resistor (See Fig. 2 for alternate value) R2 HIGH -FREQUENCY -5600 -ohm, 1/2-watt resistor BUZZER R3- 3300 -ohm, '/2 -watt resistor R4 -39 -ohm, 1/2 -watt resistor (See Fig. 3 for alternate value) 1-Buzzer, high- frequency Code -Practice (Lafay- ette 99R2556) 1-aluminum chassis box (Bud CU2101 or equiv.) Misc.-perforated phenolic board, eyelets, wire, pilot lamp assembly, lugs, aluminum for Fig. 2. Resistance RIA (1000 ohms) limits cur- bracket, etc. rent through the high- frequency buzzer and Estimated construction cost: $7.00 drops the voltage so that rated value is meas- Estimated construction time: 11/2 hours ured across high- frequency buzzer terminals. .,..,.,.,,,,,

84 RADIO -TV EXPERIMENTER the 6 -volt DC coil of flasher relay Kl. tacts open- keeping the NO contacts closed. The 6 volts across K1 causes the relay Normal RC time -constant calculations do armature to be attracted to the core. As it not work here since the on-off time is af- is pulled closer the normally closed (NC) fected by the pull -in and drop -out character- contacts are opened and the normally open istics of the relay -the capacitor does not (NO) contacts close momentarily. The coil charge fully or discharge completely during of K1 deenergizes and the NO contacts open the energize -deenergize cycle. To slow down and the NC contacts close -starting the en- the repetition rate of the clicker and flash- ergize- deenergize cycle over, again and again, ing light increase the capacitance value of until either the lights are turned off or the Cl. Do not change R1 unless another re- ignition turned on. lay, with different coil resistance, is used. The frequency of the energize -deenergize Flasher Switch. The other half of the cir- cycle depends on the flexibility of the con- cuit is just a "switch" that controls the cur- tacts of K1 and the capacitance of Cl. With rent through Il. The base bias of Q2 is just Cl discharged it takes a certain time for the the charge on Cl. When the NO contacts voltage to build up across K l as Cl's charg- close +6 volts is applied to the base of Q2 ing current is limited by R1. When Kl's NC through R3 and current flows through the contacts open the charge on Cl keeps the collector-emitter circuit of Q2 lighting Il. coil energized for a time after the NC con- R4 is a current limiting resistor and about 6 volts drop appears across it when current R4A HIGH -FRED. BUZZER TO R1 AND flows through II and Q2. LIGHT SWITCH Some Changes. If you feel that the clicking of K1 is enough warning for you just forget about R3, R4, Il and Q2. Without them K1 will still click about 5 times each second. (For a more audible click the relay R3 02 TO K1 NO 2N3053 (K1) should be mounted directly on the CONTACT 3.3K metal case instead of on the phenolic perforated board.) For an even louder attention -getting warn- TO 01 EMITTER ing a low- voltage, low- current, high -frequency buzzer can be used in the circuit. Fig. 3. When using this circuit wire a 10 -ohm Connected in series with Rl (Fig. 2) you resistor across buzzer to pass additional cur- can eliminate K1, Cl, R3, R4, Il and Q2. rent to light lamp Il properly. Resistor R4A This brings the cost of the project down to should be 27 ohms, 1/2 watt for a #47 lamp. about $2. Of course the buzzer can be connected in series with R4 and I1 too. (Fig. 3). Il If you connect the buzzer into the circuit be sure to change the value of R1 or R4 as indicated in the schematics. Construction. Component layout is not at all critical as long as you make sure that nothing touches the aluminum box to make an accidental short circuit. Fuse Fl (Fig. 2) can be included to automatically disconnect the unit from the light switch-it will not Cl protect the transistors under all of the pos-

Fig. 4. Basic parts layout may seem a bit crowded -parts placement is not critical. Pilot -lamp jewel bezel threads into ring of pilot -lamp assembly that surrounds lamp I1. RI 01 K1

TO HORN Fig. 5. Rewiring relay K1 allows vehicle horn - NO BUTTON WIRE button circuit to become part of the Light OR HORN NC Watchman. It is hard to ignore a rapidly RELAY beeping horn -if local laws permit such use.

JUNE -JULY, 1966 85 Use Your Horn. In areas where it is not prohibited, circuit for relay Kl can be re- wired (Fig. 5) so that the NO contacts can be used to actuate the horn relay -do not use the contacts of Kl to operate the horn directly since this heavy current will burn the contacts of K1. Parking or Headlights. If your local laws do not require you to leave your parking lights on while your car is parked on the street at night connect while lead (A) to the tail -light circuit. These lights are on a separate switch contact-they are on when Light Watchman with dashboard mounting the parking lights are on and they are on bracket that fits holes drilled in dashboard. when the headlights are on. No matter which circuit you use you can check the connec- 3/4" tion with a test lamp before making it per- 2" " manent. Installation. Once you have decided on where you can mount the case that contains the circuitry you'll know whether you need a bracket to mount the unit under the dash- l 41' 1.0 board. Without a light as an indicator you 028 DRILL(4 RE can mount the unit on the fire wall with a couple of self- tapping screws. -, With a few under-dash contortions you can éALU._I connect the white wire (A) to the light switch-just check your terminals first to Details of mounting bracket -bend offset to make sure you connect to the correct termi- clear the box's flanges or use spacers or nuts. nal. The red lead (B) can be connected to any sible problems that can arise from improper of the accessories that go on and off with the wiring or sloppy construction. ignition -putting the ignition switch in the In the parts layout in Fig. 4 fuse Fl was accessories position (if your car is so not used. About three 75 -mf capacitors can equipped) will allow you to park with your be stacked (connected in parallel) on top of lights on and ignition off if this should ever C l if you want to make the click slower or be necessary. The ignition circuit uses a flash interval longer. This can be a lot separate contact on the 3- position ignition easier than laying out new positions for the switch. With a sealed ignition switch it may components in a larger case just because a be necessary to connect directly to the igni- higher capacitance unit will not fit in the tion coil "hot" terminal -not the one that space for Cl. goes to the distributor breaker points.

Minuteman "Nerve Center" A full -scale mock -up of an underground launch facil- ity of the U. S. Air Force's Minuteman ICBM has been built in Waltham, Mass. by Sylvania Electric Products Inc. Actual operational launch control cap- sules will be located 50 -feet below ground and will be linked to unmanned missile silos located miles away. Air Force officers man the "nerve centers" on a round - the -clock basis. Sylvania constructed the unit as part of a multi- million dollar contract for an improved version of the nation's first solid -fuel, three -stage missile. In photo, officer (rear) is seated at command console. Officer in foreground checks missile readiness at control console. It doesn't look much like a classroom, but it is one of many in America's space -age school system.

86 RADIO -TV EXPERIMENTER LANGUAGE

By Stanley Leinwoll

Have QSL's lost their thrill? Try for a QSL for each language broadcast by those stations!

During the past several years there has been a significant increase in the number of short -wave transmitters being used in international broadcasting. Moreover, the power of these transmitters has been on the up- swing. For example, since 1962 there has been an increase of more than 10 percent in the number of African and Asian nations engaged in high frequency broadcasting. In addition, many Afro -Asian nations engaged in International Broadcasting before 1962 have recently begun to improve their services by adding high power transmitters. Ghana has recently added two 250,000 - watt and two 100,000 -watt short-wave transmitters to its foreign service programs; the United Arab Republic has one 250 kilowatt transmitter in operation, and is planning to add three more; Kuwait has four 250-kw transmitters under construction, and Saudi Arabia is planning the addition of two 250- kw transmitters. Of even greater importance to the short wave listener has been the expansion of the number of transmitters used by the world's major broadcasters. In particular, the Voice of America and Radio Moscow have added heavily to the number of transmitters operating in the short wave bands. It's How They Say It. Although the steadily increasing number of transmitters in service, as well as higher average power per transmitter, have resulted in increased interference in the high frequency spectrum, it

JUNE -JULY, 1966 87 TABLE A- FOREIGN LANGUAGE CHECK SHEET Band Language Broadcaster Date Monitored QSL Rec'd (meters) LANGUAGE Adigey R. Liberty March 4, 1966 31 Apr 18 Afrikaans Netherlands March 7, 1966 19 Apr 17 Albanian BBC Feb 21, 1966 49 Mar 20 Amharic Cairo Feb 28, 1966 41 Bambara Moscow April 1, 1966 25 Czech V. of America Feb 17, 1966 31 Mar R

has also afforded the SWL unprecedented TABLE B- ENGLISH LANGUAGE DX opportunities. Not only have the number CHECK SHEET of countries engaged in international broad- Broadcaster Time Band Date QSL Rec'd casting increased, but, of potentially more (meters) importance to the SWL, the number of lan- BBC 1700 19 Apr 18

guages being carried in the international Egypt 2130 25 Feb 1 Apr 1 services of many of the world's broadcasters Ghana 1630 16 Jan 21 has increased sharply. Switzerland 0115 31 Jan 18 Mar 10 V. of America 1600 19 Mar 1 Mar 27 As a result, the adventuresome SWL, in Radio Moscow 2200 41 Jan 27 Apr 14 addition to accumulating country QSL's as Bulgaria 1930 49 Mar 22 he has done in the past, can now begin to collect languages. Because of the higher av- Some Numbers. As a start, the language erage power per transmitter, the listener has DX'er can study the schedules of the Voice a better opportunity to hear some of the lan- of America, the British Broadcasting Cor- guages on the air than ever before. poration, and Radio Moscow. Radio Mos- Once he has decided on this entirely differ- cow is the world's leader in International ent and exciting approach to his hobby, the Broadcast output, transmitting in a total of DX'er can then vary his search for new lan- 63 different languages. BBC is second with guages in several different ways. 40 different, and VOA third with 37 different At the present time, the world's broadcast- languages. Cairo is a surprising fourth with ing community has in regularly scheduled 26 different languages. operation program transmissions in more These four broadcasters alone will provide than 135 languages and dialects. This figure the listener with close to one hundred lan- has been increasing steadily in recent years, guages that range all the way from Albanian and now includes many exotic, and not often to Zulu. It will, of course, be impossible to heard -of languages, among which are Am- log all the languages of all the world's broad- haric, Baluchi, Efik, Fanti, Hausa, Konkani, casters, since many of these are regional Quechua, and Wolof. dialects, transmitted on low power to adja- Log It. One approach to language DX cent territories; under ordinary conditions, is the direct one: to log as many languages therefore, the signals carrying some of these as possible and to collect a QSL for each languages will not be strong enough to be language. A sample checksheet is shown, heard over a wide area. with a proposed format for a log, in Table A. It should be possible, however, for the If you have a tape recorder put it to work determined DX'er to log at least 75 different -collect the station breaks. Often station languages in a relatively short time, provided breaks are given in more than one language he has accurate schedule information. As which may be identified in yours. indicated previously, the WRTV Handbook In addition to his receiver, the language is the best source of schedule information DX'er will find a copy of the World Radio for all international broadcasters, offering and TV Handbook for Listeners an indis- a wealth of comprehensive information about pensable tool in determining which languages times, frequencies, and language services for are broadcast by whom, and at what time, the world's broadcasting community. and on which frequencies. Most SWL's are Another variation of language DX'ing is to familiar with the handbook, which can be try to log all the languages transmitted by a obtained at most SWL and electronic supply single broadcaster. As mentioned previously, houses, or ordered direct from: Gilfer Asso- the Voice of America transmits in 37 differ- ciates, Dept. 1S, P. O. Box 239, Park Ridge, ent languages, and would probably be the New Jersey. (Continued on page 118)

88 RADIO -TV EXPERIMENTER POLARITY TATTLETALE by James A. Fred

Are you positive of your polarity? This handy little electronic gadget will indicate battery or charger polarity. Low in cost -easy to build. Why be without it?

Several years ago most battery chargers made for use by the home auto mechanic, had red and green lights on their front panel. The green light was a combination power ON indicator and a proper polarity indicator. The red light was a wrong -polarity indicator. It would light up if the charger was connected to the battery backwards. The newer battery chargers shown do not have polarity indicators. Many of them do have an ammeter however, which will go violently off scale if the charger is connected backwards. One of the oldest ways used to detect polarity is to use a potato. Just cut a potato in half; plunge a pair of wires into the cut surface. The area around the positive lead connected to the battery will turn green. A more modern way is to use a voltmeter. However most home style auto mechanics don't have a voltmeter. This little device that we built uses the property of a silicon rectifier of passing current in only one direction to indicate the polarity of a battery charger. Each rectifier is connected in series with a light bulb and when the plus side of the battery is connected to the positive terminal then the green light will light, but if the negative terminal of the battery is connected to the positive terminal then the red bulb will light indicating that the battery is connected backward. By using 6-volt bulbs and switching in a series resistor for a 12 -volt battery, the device can be used on both 6- and 12 -volt batteries or power supplies. (Continued Overleaf)

Juma- Jvr.Y, 1966 89 3-4 3- _ 4

DIA. (2 REQ) x á 2 #30 DRILL TYP. (6REO) 3

l 5- 8 Large terminal screws are for convenience l' since current is limited by pilot lamps. Complete circuit is mounted on this cover using lamp and switch lugs as tie points.

Dl Rl 11 PARTS LIST FOR POLARITY INDICATOR D1, D2- Silicon rectifier (Mallory 1N2090 or equiv.) 11,12-Pilot lamps (See text) R1, R2- Resistors, 2 -watt (See text) 51- D.p.s.t. slide switch 1-molded black plastic case, 27/8" x 4" x 1- 9/16" (Allied 87U895 or equiv.) D2 Misc. -Green pilot -light assembly; red pilot- light assembly, aluminum for case cover; Circuit is simple. R1, R2 limit current wire; solder; terminal and mounting hard- through 6 -volt lamps when used on 12- volts. ware; insulating washers; etc. Estimated construction cost: $3.00 volt If you will be using only Estimated construction time: 2 hours operation. 12 -volt batteries (or can stand less brilliance during 6 -volt operation) use a 12 -volt lamp Start the Project. First collect all the like the 428, 1446, 1487 or 1815. Then you parts on the list. Layout and drill the holes can also eliminate the 6/12 -volt switch and in the cover. The cover can be made of the two 2 -watt resistors. metal, wood, phenolic or other material of Making Tests. After you have wired and your choice. I used aluminum because it is double checked the Polarity Indicator you easy to work with. The aluminum was are ready to test it. To test a battery or etched in a strong solution of household lye battery charger for polarity connect a wire until it had a uniform satin finish. A coat from the plus wing nut on the tester to a of clear spray was applied and then decals post on the battery and connect a wire from were applied. Another coat of clear spray the negative wing nut to the other post of finished the cover. When mounting the the battery. (We are referring to the com- battery connecting bolts be sure and use mon type lead -acid automobile battery insulating washers if your cover is made of rather than a dry cell battery.) If the green metal. The polarity connections to the recti- indicator lights up you are connected prop- fiers are very important because this deter- erly, but if the red indicator glows you have mines which light will light. You may use the wires to the battery reversed. After de- type 51 lamps with a 70 -ohm, 2 -watt resistor termining the proper polarity of a battery or type 47 lamps with a 56 -ohm, 2 -watt terminal take some red fingernail polish and resistor for maximum brightness during 6- paint the top of the positive terminal post.

90 RADIO -TV EXPERIMENTER panels as a guide for installing the lamps. Neon -Lamp Calculator Install one lamp at a time and solder it Continued from page 52 into the circuit. One wire connects to the nearest vertical bus -wire and the other to the wood backing. Then enlarge the circuit nearest horizontal wire. After each lamp is installed, place board and cabinet top holes to 1/4 inch. The a panel over the spacers and panel mounting holes are also drilled to check the lamp's height. The tip of the lamp IA inch. Do not enlarge the 4 mounting should be through the 1)64 -inch lamp holes holes in the perforated board or cabinet. and flush with the top of the panel. After Drilling is complete on the cabinet top and the wiring is complete, remove the second panels. But the circuit board lamp holes have spacer and washer from each mounting bolt to be enlarged to Na inch. And, since bits of and install the board in the cabinet. this size tend to tear the phenolic, it's best Rotary Switches. Although the rotary if a reamer is used instead of a drill. switches specified have 12 positions only 9 Finally, the cabinet front and back holes switch positions are used. And, since there are laid out and drilled. are no stops, any 9 consecutive positions will Lamp Subassembly. The neon lamps work. The terminal in the center is the rotor. are held in place by rubber grommets -in- Nothing is preventing the builder from stalling these grommets is the first step. The using all 12 positions of the switches to go grommets have a 3ín -inch inside diameter and as high as 12 times 12 etc. -The Editors mount in 3'ie -inch holes. Looking at the back of the switch, count After the grommets are in place insert the counterclockwise when connecting the wires. flea clips to support the ends of the bus -wires. Connect one wire to each of the 9 positions Note that the #9 horizontal wire has a flea used. (Cut -off the shafts at the first notch clip tie in the center. Next cut and solder before fastening the switches in the cabinet.) the bus-wires. The horizontal wires are laid To position the knobs check for circuit con- against the board and are soldered to the tinuity and set them accordingly. Mount the bottom of the flea clips. The vertical wires remaining parts in the cabinet as shown are soldered to the top of the flea clips and in the drawings and photos. their ends are bent and shoved down the Final Wiring. The final wiring consists center of the clips. The two sets of wires of merely connecting the switch wires to the should not touch. Care should be used at the proper board terminals. The isolation trans- junction of Circuit #1 and #2 to be sure former, R1, and S3 are wired according to the wires are properly placed. the schematic diagram. Note that the #10 Next put the 3/4-inch, 6 -32 machine screws position on Si is used as a tie point for R1. in the mounting holes (heads on same side as The last step is marking the three panels the bus -wires) and thread on two, 1/4 -inch which are used for the different functions. spacers on each machine screw. A #6 To check the unit run through the prob- washer goes between the two spacers. Later, lem combinations shown in the first two the second spacer and washer are removed groups in the table and check the answers. and used on the top of the cabinet to hold the The Neon -Lamp Calculator is finished but board in place but this allows us to use the the fun hasn't even started!

Completely wired unit is TI ready to be "buttoned up" after final check has been GROMMET made. Grommet is split (SPLIT) S3 to go onto ready -wired

linecord of T1 . Put a knot in linecord to give JUMPERS some strain relief to the #1 THRU connections on Ti. Cord #4 protecting grommet fits in slot in edge of side of LAMP cabinet's bottom plate. S2 ASSEMBLY

JUNE-JULY, 1966 91 You can earn more money if you get an FCC License

...and here's our famous CIE warranty that you will get your license if you study with us at home

NOT SATISFIED with your present in- ting your license is widely accepted Matt Stuczynskl, thing proof that you know the fundamentals Senior Transmitter come? The most practical Operator, Radio you can do about it is "bone up" on of electronics. Station WBOE pass the FCC exam, your electronics, So why doesn't everybody who "tink- "1 give Cleveland and get your Government license. ers" with electronic components get an Institute credit for The demand for licensed men is FCC License and start cleaning up? my First Class enormous. Ten years ago there were The answer: it's not that simple. The Commercial FCC about 100,000 licensed communications government's licensing exam is tough. License. Even those for police and though I had only six weeks of high stations, including In fact, an average of two out of every school algebra, CIE's AUTO -PRO- tire departments, airlines, the merchant three men who take the FCC exam fail. GRAMMED'M lessons make elec- companies, marine, pipelines, telephone There is one way, however, of being tronics theory and fundamentals easy. firms, de- taxicabs, railroads, trucking pretty certain that you will pass the After completing my CIE Course, I passed the 1st Class FCC livery services, and so on. FCC exam. And that is to take one of took and Exam. I now have a good job in are over a million such Today there the FCC home study courses offered by studio operation, transmitting, proof stations on the air, and the number is the Cleveland Institute of Electronics. of performance, equipment servic- And according to growing constantly. CIE courses are so effective that bet- ing." Federal law, no one is permitted to ter than 9 out of every 10 CIE- trained operate or service such equipment men who take the exam pass it...on without a Commercial FCC License or their very first try! That's why we can Chuck Hawkins, without being under the direct super- afford to back our courses with the Chief Radio vision of a licensed operator. Technican. Division iron -clad Warranty shown on the fac- 12, Ohio Dept. This has resulted in a gold mine of ing page: you get your FCC License or of Highways new business for licensed service tech- your money back. nicians. A mobile radio service "My CIE Course typical There's a reason this remarkable enabled me to pass $100 for contract pays an average of about record. From the beginning, CIE has both the 2nd and a month. It's possible for one trained specialized in electronics courses de- 1st Class License technician to maintain eight to ten signed for home study. We have devel- Exams on my first systems. men attempt...I had no prior electronics such mobile Some cover oped techniques that make learning at as many as fifteen systems, each with training either. (Many of the others home easy, even if you've had trouble with me were perhaps a dozen units. who took the exam studying before. trying to pass for the eighth or ninth time!) I'm now in charge of Division Coming Impact of UHF In a Class by Yourself Communications. It's an interesting. demand for licensed operators challenging and rewarding job. And This Your CIE instructor gives his un- incidentally, I got it through CIE's and service technicians will be boosted divided personal attention to the les- Job Placement Service." again in the next 5 years by the mush- sons and questions you send in. It's like rooming of UHF television. To the 500 being the only student in his "class." or so VHF television stations now in He not only grades your work, he an- Glenn Horning, operation, several times that many alyzes it. And he mails back his correc- Local Equipment UHF stations may be added by the li- tions and comments the same day he Supervisor.Westers censing of UHF channels and the sale receives your assignment, so you can Reserve Telephone of 10 million all -channel sets per year. read his notations while everything is Company still fresh in your mind. "There's no Opportunities in Plants doubt about it. I Books owe my 2nd Class And there are other exciting opportu- Mail Card for Two Free FCC License to nities in aerospace industries, electron- Want to know more? The postpaid re- Cleveland Institute. ics manufacturers, telephone compa- ply card bound -in here will bring you Their FCC License Course really nies, and plants operated by electronic free copies of our school catalog de- teaches you theory and fundamentals automation. Inside industrial plants scribing opportunities in electronics, and is particularly strong on transis- the teaching methods, and our courses, tors, mobile radio, troubleshooting like these, its licensed technician our and math. Do I use this knowledge? who is always considered first for pro- together with our special booklet, You bet. We're installing more so- motion and in -plant training programs. "How to Get a Commercial FCC Li- phisticated electronic gear all the The reason is simple. Passing the Fed- cense." If card has been removed, just time and what I learned from CIE eral government's FCC exam and get- send your name and address to us. sure helps." ' E Cleveland Institute of Electronics C 1776 E. 17th St., Dept. EX -16, Cleveland, Ohio 44114 Accredited by the Accrediting Commission of the National Home Study Council, and the only home study school to proside complete coverage of electronics fundamentals plus such uptodate applications as: Mticrominiaturitation Laser Theory and Application Suppressed Carrier Modulation Single Sideband Techniques Logical Troubleshooting Boolean Algebra Pulse Theory Timebase Generators...and many more.

92 RADIO -TV EXPERIMENTER .e.:Ichmtatttttte.::::._ :.o. _ ., elrnt ttSc r,., 7flri, Y!'snF:YAtnIUM e Ii.YICATIO V h CON l/ L1h111\

Better thon 9 out of 10 CIE men win 'heir "t;cket,. the very first time they try IS " I"t ft Or JC

Cleveland Institute of Electronics

The Cleveland Institute of Electronics hereby warrants that upon completion of the Electronics Technology, Broadcast Engineering, or First -Class FCC License couse. you will be able to pass the FCC examination for a First Class Com- mercial Radio Telephone License with Radar Endorsement ; OR upon completion of the Electronic Communications course you will be able to pass the FCC examination for a Second Class Commercial Radio Telephone License; AND in the event that you are unable to pass the F('C test for the course you select. on the very first try, you will receive a FULL REFUND of all tuition payments. This warranty is valid for the entire period of the completion time allowed for the course selected.

JII:FJu--Y, 1966 95 Volume 45, No. 3 WHITE'S

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

This is the third and last part of White's AM Stations by Frequency, U. S. Television Radio Log, now published in three parts Stations by States, Canadian Television Sta- twice each year. This format presentation tions by Location and the World -Wide Short- enables the Editors of RADIO-TV EXPERI- Wave Section. In the event you missed a MENTER to offer its readers two complete part of the Log published during the first half volumes of White's Radio Log each year, of 1966, you will have a complete volume of while increasing the scope of the Log and its White's Radio Log by collecting any three accuracy. consecutive issues of RADIO -TV EXPERIMEN- In this issue of White's Radio Log we TER during the last half of 1966. The three have included the following listings: U. S. consecutive issues are an entire volume of AM Stations by Call Letters, U. S. FM Sta- White's Radio Log that offers complete tions by Call Letters, Canadian AM Stations listings with last minute station change data by Call Letters, Canadian FM Stations by that are not offered in any other magazine Call Letters and the World-Wide Short - or book. Wave Section. If you are a broadcast band DX'er, FM In August- September 1966 issue of RADIO - station logger, like to photograph distant TV TV EXPERIMENTER, Volume 46, No. 1, test patterns, or tune the short -wave bands, the Log will contain the following listings: you will find the new White's format an un- U. S. AM Stations by Frequency, Canadian beatable and up -to-date reference.

.... 111111111111111.111 1111

QUICK REFERENCE INDEX F...... ,.,,...... U.S. AM Stations by Call Letters 97

U.S. FM Stations by Call Letters 106 Canadian AM Stations by Call Letters 110 Canadian FM Stations by Call Letters III World -Wide Short -Wave Stations 112

1111 11111111 11111111 NI 111 11111111.1116

96 RADIO -TV EXPERIMENTER U. S. AM Stations by Call Letters

C.L. Location Kc. C.L. Location Kc. C.L. Location Kc. C.L. Location Kc.

KAAA Kingman, Ariz. 1290 KATL Miles City. Mont. 1340 KBOX Dallas. Tex. 1480 KCOK Tulare. Calif. 1270 KAAB Hot Springs. Ark. 1640 KATN Boise, Idaho 1010 KBOY Medford. Oreg. 730 KCOL Ft. Collins, Colo. 1410 KAAY Little Rock. Ark. 1090 KATO Safford, Ariz. 1230 KBPS Portland, Oreg. 1450 KCOM Comanche, Tex. 1550 KABC Los Angeles, Calif. 790 KATO Texarkana, Tex. 940 KBRC Mt. Vernon, Wash. 1430 KCON Conway. Ark. 1230 KABH Midland. Tex. 1510 KATR Eugene. Ore. 1320 KBRI Brinkley, Ark. 1570 KCOR San Antonio, Tex. 1350 KABI Abilene. Kam. 1560 KATY San Luis Obispo, Cal. 1340 KBRK Brushings. S.Dak. 1430 KCOW Alliance. Nebr. 1400 KABL Oakland. Calif. 960 KATZ St. Louis, Mo. 1600 KBRL McCook, Nebr, 1300 KCOY Santa Maria. Calif. 1400 KABQ Albuquerque. N.M. 1350 KAUS Austin. Minn. 1480 KERN Brighton, Colo. 800 KCPX Salt Lake City, Utah 1320 KAOR Aberdeen. S.Dak. 1420 KAVE Carlsbad. N.Mez. 1240 KBRO Bremerton, Wash. 1190 KCRA Sacramento, Calif. 1920 KACE Riverside. Calif. 1570 KAVI Rocky Ford. Colo. 1320 KBRR Leadville, Colo. 1230 KCRB Chanute, Kans. 1460 KACI The Dalles. Oreg. 1300 KAVL Lancaster. Calif. 610 KBRS Springdale, Ark. 1940 KCRC Enid, Okla. 1990 Santa KACL Barbara, Cal, 1290 KAVR Apple Valley, Calif. 960 KBRV Soda Spras Ida, 540 KCRC Cedar Rapids, lows 1600 KACT Andrews. Tex. 1960 KAWA WacoMarlin, Tex. 1010 KBRX O'Neill, Nebr. 1350 KCRM Crane, Tex. 1980 KACY Port Hueneme. Calif. 1520 KAWL York. Neb. 1970 KBRZ Freeport, Texas 1460 KCRS Midland. Tex. 550 KADA Ada. Okla. 1230 KAWT Douglas, Ariz. 1450 KBSF Springhill, La. 1460 KCRT Pine Trinidad, Colo. 1240 KARL Bluff. Ark. 1270 KAYC Beaumont. Tex. 1450 K BSN Crane. Tex. 970 KCRV Caruthersville. Mo. 1670 KADO Marshall, Tex. 1410 KAYG Lakewood, Wash. 1480 KBST Big Spring. Tex. 1490 KCSJ Pueblo, Colo. 590 KADY St. Charles, Mo. 1460 KAYL Storm Like. Iowa 990 KBTA Batesville, Ark, 1340 KCSR Chadron, Nebr. 610 KAFY Bakersfield. Calif. KAYO Seattle, Wash. 1150 KBTC Houston, Mo. 1250 KCTA Corpus Christi. Tex. 1030 KAGE Winona, Minn. 1380 KAYS Hays. Kans. 1400 KBTM Jonesboro, Ark, 1290 KCTI Gonzales, Tex. 1450 KAGH Crossett. Ark. 800 KAYT Rupert. Idaho 970 KBTN Neosho, Mo. 1420 KCTY Salinas, Calif. 960 KAGI Pass, 1490 Grants Oreg. 930 KBAB Indianola. Iowa KBTO El Dorado. Kans. 1360 KCTX Childress. Tex. 1510 KAGO Klamath Falls. 1150 Oreg. KBAL San Saba, Tez. 1410 KBTR Denver, Colo. 710 KCUB Tucson. Ariz. 1290 KAGR Yuba City. Calif. 1450 KBAM Longview, Wash. 1270 KBUD Athens, Tex. 1410 Wash. KCUE Red Wing. Minn, 1250 KAGT Anatortes. 1340 KBAN Bowie. Tex. 1410 KBUH Brigham City. Utah 800 KCUL Fort Worth, Tex. 1540 KAHI Auburn. 950 Calif. (BAR Burley. Idaho 1230 KBUN Bemidji. Minn, 1450 KCVL Colville. Wash. 1270 KAHR Redding, 1330 Calif. KBAT San Antonin, Tex. 680 (BUR Burlington, Iowa 1490 KCVR Lodi, Calif. 1570 KAHU Waipahu, Hawaii 940 KBBA Benton, Ark. 690 KBUS Mexia, Tex. 1590 Honolulu. KCVL Lampasas, TeX. 1450 KAtM Hawaii 870 KBBB Borger. Tex. 1600 KBUY Amarillo, Tex, 11)10 KDAC Ft. Bragg. 1230 KAIN Nampa, Ida. 1340 Calif. KBBC Centerville, Utah 1600 KBUZ Mesa. Ariz. 1910 KDAD Weed. Calif. 800 KATR Tucson, Ariz. 1490 KBBO Yakima. Wash. 1390 KBVM Lancaster. Calif. 1380 (OAK Carrington. N.D. 1606 KAJO Grants Pass. 1270 Oreg. KBBR North Bend. Oreg. 1340 KBVU Bellevue, Wash, 1540 KDAL Duluth, Minn. 610 KAKA Wickenburg. Ariz. 1250 KBBS Buffalo. Wyo. 1450 KBWD Brownwood, Tex. 1380 KDAN KAKC Tulsa. Okla. Eureka, Calif. 790 970 KBCH Oceanlake, Oreg. 1380 KBXM Kennett, Mo. 1540 KDAV Lubbock. Tex, 580 KAKE Wichita. Kan. 1240 1220 KBCL Shreveport, La. KBYE Okla. City, Okla. 890 KDAY Santa Monica. Calif. 1580 KALB Alexandria. La. 580 KBEA Mission, 1480 Kans. KRVG Big Spring, Tex. 1400 KDB Santa Barbara, Calif. 1490 KALE Richland, Wash. 960 KBEC Waxahachie, Tex. 1390 KBYP Shamrock, Tex. 1580 KDBM Dillon, KALF Mesa, Ariz. 1510 Mont. 800 KBEE Modesto, Calif. KBYR Anchorage, Alaska 1270 KDBS Alexandria, La. 1410 KALG Alamogordo, N.Mex. 1290 KBEK Elk City. Okla. 127040 KBZY Salem, Oreg. 14911 San Gabriel. KOCE Espanola. N.M. 970 KALI Cal. 1430 KBEL Idabel. Okla. 12 40 KBZZ Lslunta, Colo. 1400 KDDA Dumas, Ark. 1560 KALL Salt Lake City. Utah 910 KBEN Carrizo Svgs.. Tex. 14 50 KCAB Dardanelle. Ark. 980 KDDD Dumas, Tex. KALM Thayer, Mo. 1290 San Antonio, 600 KBER Tex. 1150 KCAC Phoenix, Ariz, 1010 KDEC Decorah. Iowa 1240 KALN Iola. Kan. 1370 KBET Reno, Nev. 1340 KCAD Abilene. Tex. 1560 KDEF Albuquerque, N.Mex. 1150 KALO Little Rock. Ark. 1250 KBEV Portland. Oreg. 1010 KCAL Redlands, Calif. 1410 KDEN Denver, Colo. 1340 KALT Atlanta, Tex. 900 KBEW Blue Earth. 15 Minn. 6) KCAM Glennallen, Alaska 790 KDEO El Cajon, Calif. KALV Alva. Okla. 1430 KBFS Belle Fourche, 14 910 S.Dak. 50 (CAN Canyon, Tex. 1530 KDES Palm Barbs.. 920 KAMO Camden, Ark. KBGN 10 Calif. 918 Caldwell, Idaho 9 (CAP Helena, Mont. 1340 KDET Center. Tex. 930 KAMI Cozad, Neb. 1580 (BOO Tex. 15 Waco. 80 (CAR Clarksville, Tex, 1350 KDEX Dexter. Mo. 1590 KAML Kenedy- Karnes City. KBHB Sturgis, S. D. 12 80 KCAS Slaton. Tex. 1050 Tex. K DEY Boulder, Colo. 1360 1190 KBHC Nashville, Ark, 12 110 KCAT Pine Bluff, Ark. 1530 Wash. KAMO Rogers. 1990 KDFL Sumner, 1560 Ark. KBHM Branson. Mo. 122 KCRC Des Moines, Iowa 1390 KDFN Dnniphan. 1500 KAMP El Centre. Calif. 1430 Mn. KBHS Hot Springs, Art. 59 0 KCBD Lubbock. Tex. 1590 NOGG KAMY McCamey, Tex. la, 115 Durango, Colo. 1240 1150 KBIA Burlington. KCBQ San Diego. Calif. 1170 KDHI Twenty -nine Palms, I( ANA Anaconda. Mont. 580 KBIB Monelle, Ark. 136O KCBS San Fran., Calif. 740 KANB Shreveport, 13110 California 1250 La. KBIF Fresno. Calif. 900 KCCB Corning, Ark. 12611 KOHL (AND Corsicana. Tex. 1340 (BIG Avalon. Cal. 740 Faribault, Minn. 920 KCCL Paris, Ark. 1460 KDHN Dimmltt, Tex. 1170 KANE New Iberia. La. 1240 KBTM Roswell, N.Mex. 910 KCCN Honolulu, Hawaii 1420 KANI Wharton. Trx, 1300 KDIA Oakland. Calif. 1310 KBIS Bakersfield, Calif. 1499700970 Lawton, Okla. 1050 KANN Ogden, Utah 1250 KBIS Muskogee, Okla. KDIO Ort.mville, Mien. 1950 KCCR Piarte, S. D. 1240 KDIX Dickinson, N.Dak. 1230 KANO Anoka. Minn. 1470 (BIM Lemmoe. S.D. 1400 KCCT Corpus Christi. Tex. 1150 KANS 1510 KOJI Holbrook, Ariz. 1270 Lamed, Kan. (BIZ Ottumwa, Iowa 1240 KCCV Independence, Mo. 1510 KOKA KAOH Duluth. Minn. 13 Fordyce, Pittsburgh, Pa. 1020 KBiT Ark. 1570 KCEE Tucson. Ariz. KDKD Clinton, Mo, KAOK Lake Charles, La. 14 00 KBKR Baker. Oreg, 1570 1280 KCEY Tunlock, Calif. 1390790 (0(0 Littleton, Colo. 1510 KAOL Carrollton. Mo. 14 30 KBKW Aberdeen, Wash. 1 450 KCFA Spokane, Wash. 1330 KOLA DeRidder, La. 1010 KAOR Oroville. Calif. 13 40 I KBLA Burbank, Calif. I 5011 KCFH Cuero, Tex. 1600 KDLK Del Rio, Tex. 1230 KAPA Raymond. Wash. 13 40 KBLE Seattle. Wash. 1 030' (CFI Cedar Falls. Iowa 1250 KDLM Detroit Lakes, Minn. 1310 KAPB Marksville La. 13 70 KBLF Red 1 490' Bluff. Calif. KCGM Columbia. Mo. 1580 KOLB Devils Lake, N.Dak, 1240 KAPE San Antonio, Tez. 14 80 I KBLI Blackfoot, Idaho 690 KCHA Charles City, Iowa 1580 KDLS Parry. Iowa 1810 KAPI Pueblo. 6 90 Helena, 1 Colo. KBLL Mont. KCHE Cherokee, Iowa 1440 KDMA Montevideo, KAPR Douglas. Ariz. 9 30 KBLR Bolivar, Mo. Minn, 1450 KCHI Chillicothe. Mo. 1010 KOMO 1490 1tAPS Mt. Vernon. Wash. 14 70 i29i1 Carthage, Mo. KBLT Big Like. Tex. KCHI Delano, Calif. 11110 KOMS KAPT Salem. Ore. 12 20 KBLU Yuma, Ariz. 13201 El Dorado. Ark. 1290 KCHR Charleston, Ma. 1350 KUNC Spokane, Wash. 14411 KAPY Port Angeles. Wash. 12 90 KBLY Gold Brach. Oreg. 1220 KCRS Truth or Consequences, KONT Denton, Tex. 1440 KARA Albuquerque. N.M. 13 10 Henderson, Nev. 14001 KBMI New Mezleo 1400 KOOK Tyler, Tex. 1330 KARE Atchison. Kan. 14 70 KBMN Bozeman, Mont. 1230 KCH V Coachella, Calif. 970 KDOL Mojave, Calif. 1540 KARI Blaine. Wash. 5 50 KBMO Benson, Minn. 1290 KCHY Cheyenne, Wyo. 1530 (DON Windom, Mina. 1580 KARK Little Rock. Ark. 9 20 KRMR Bismarck, N. D. 1350 KCID Caldwell, Idaho 1490 KDON Salinas, 1460 KARM Fresno, Calif. 14 90 KBMW Wahileton, Calif. N.D.- ¡KCTI Washington, Iowa 1380 (DOT Scottsdale. 1440 KARR Great Falls. Mont. 14 00 Breckenridge, Minn. 1450 Ariz. KCI1 Shreveport, La. 1050 KDOV Medford, Oreg. 13011 KARS Brien. N.M. 8 00 KBMX Coalinga, 1470 Calif. KCIL Houma, a. 1490 KDOX Marshall. Tes. 1410 KART Jerome. Idaho 14 00 KBMY Billings. Mont. 1240 KCIM Carroll. Iowa 1380 (DON DeQueen, Ark. 1390 KARY Presser. Wash. 13 10 KBND Bend, Oreg. 1110 KCIN Vietorville. Calif. 15911 K DRI: Deer Lodge, Mont. 1100 KASH 13 90 K Eugene. Ore. BOA Kennett, Mo. 830 KCJB Minot, N.Dak. 910 KDRO Mo, KASI Ames, Iowa 14 30 KBOE Oskaloosa. Iowa 740 Sedalia. 1340 KCKC San Bernardino. Cal, 1350 1190 KASK Ontario. Calif. 15 10' KB01 Boise. Idaho 1i70 (ORS Paragould, Ark. KCKG Sonora. Tex 1 240 KDRY Alamo Has.. Tex. IIIO KASL Newcastle. Wye. 12 40 KBOK Malvern. Ark. I KCKN Kansas City. Kans. 1340 KDS1 Deadwood. S.Dak. 980 KASM Albany, Minn. 11 50 KBOL Boulder, Colo. 1 490 KCKW Jena. La. 1 480 (DAN Denison, Iowa 1580 K ASO Minden, La. 12 40 KBOM Bismark. Mandan, KCKY Coolidge. Ariz. 1150 KOSS Denison -Sherman. I 270 ! KAST Astoria. Ore. 13 70 N. Oak. KCLA Pine Bluff, Ark. 1400 Tex. 950 KASY Auburn. Wash. 12 20 KBON Omaha, Nebr. 1 490; KCLE Cleburne, Tex. 1120 KDIA Delta, Colo. 1400 KATA Arcata. Calif. 13 40 KBOP Pleasanton, Tex. I 380 I KCLN Clinton. Iowa 1390 KDTH Dubuque, Iowa 1370

KATE Albert Lea. Minn. 14 50 KBOR Brownsville, Tex. I 600 I KCLO Leavenworth, Kans. 1410 KDUZ Hutchinson, Minn. 1260 KATI Casper. Wyo. 1400 KBO W Butte, Mont. 550 KCLR Balls, Tex. 1530 KDWA Hastings, Minn. 1460 KCLS Flagstaff, Ariz. 600 KDWB St. Paul, Minn. 690 KCLU Rolla, Mo. 1590 K O W T Stamford. Tex. 1100 KCLV Clovis. N.Mex. 1240 KDXE No. Little Rock, Ark. 1380 KCLW Hamilton. Tex 900 K DX I Mansfield, La. 1960 Every effort has been mode to ensure accuracy of the KOXU St. George, Utah 1450 KCMG Telxarkai,a, vins 129 KDYL Tooele, Utah 990 information listed in this publication, but absolute accu- KCM1 Palm Sorg*. Calif 1010 K DZA Pueblo. Colo. 1230 KCMG Kansas City, Mo RIO KLAN Brownwood. Tes. 1240 racy is not guaranteed and course. information I. of only KCMS Manitou Stirn. , r. 1490 KEAP Fresno. Calif. 980 available up to press -time could be included. Copyright Nli:1:3 BAriottern., KEBE Jacksonville, Tex. 1400 R e. Mehr 's11ó KECH etclukan, Alaska 620 1966 by Science & Mechanics Publishing Co., a subsidiary KCNY San Marcos. Tex 1470 KECK Odessa, Tex. (COB Newton, Iowa 1200 K ED San Antonio, of Davis Publications, Inc., 505 Park Avenue, New York, I Tex. 1540 KCOG Centerville. Iowa 1400 KEDD Dodge City. Kans. 1530 New York 10022. KCOH Houston, Tox. 1430 KEDO Longview, Wash. 1400

JUNE-JULY, 1966 97 wEa,a C.L. Location Ka. C.L. Location Kc. C.L. Location Re. KFML Denver, Colo. 1390 KGV Olympia, Wash. I 240 KJAX Santa Rosa. Calif. 1150 KFMO Flat River. Mo. 1240 KGYN Guymon. Okla. I 220 KJAY Sacramento, Calif. 1430 KFNF Shenandoah, Iowa 920 KHAI Honolulu. Hawaii I 090 KJBC Midland, Tex. 1150 12777c) KFNV Ferriday, La. 1600 KRAK Cedar Rapids. Iowa I 360 KJCF Festus, Mo. 1400 KFNW Fargo, N.Dak. 900 KHAL Homer. La. I 300 KJCK Junction City. Kans. 1420 KFOR Lincoln, Nebr. 1240 KHAP Aztec. N.M. I 340 (JOY John Day, Ore. 1400 KFOX Long Beach, Calif. 1280 KHAR Anchorage. Alaska 590 KJEF Jennings. La. 1290 ao@ KFPW Ft. Smith. Ark. 1230 KHAS Hastings. Nebr. I 230 KJEM Oklahoma City, Okla. 800 KFQD Anchorage, Alaska 750 KHAT Phoenix, Ariz. 1 480 (JET Beaumont, Tex. 1980 KFRA Franklin, La. 1390 K HBM Monticello, Ark. I 430 KJ FI Webster City. Iowa 1570 KFRB Fairbanks, Alaska 900 Tex. I 560 (JIM Ft. Worth, Tex. 870 C.L. Location Kc. KHEJR Hillsboro. KFRC San Francisco, Calif. 610 KHDN Hardin, Mont. I 230 KJ(J Flagstaff, Ariz, 1400 KEED Springfield- Eugene, KF RD RosenbergRichmond, KH EB Heber Springs, Ark. I 370 KJLT North Platte, Nebr. 970 I KJNO 630 Ore. 1120 Tex. 980 KHEM Big Springs, Tez. 270 Juneau, Alaska 940 I 590 La. 1480 KEEE Nacogdoches. Tex. 1290 KFRE Fresno, Calif. KHEN Henryetta. Okla. (JOE Shreveport, Mo. 55 o I 1280 KEEL Shreveport, La. 710 KFRM Kansas City. KHEP Phoenix, Ariz. 280 (JOY Stockton, Calif. 137 I Mo. 1390 KEEN San lose Calif 1970 KFRO Longview. Tex. 0 KHER Santa Maria, Calif. 600 KJPW Waynesville. KFRU Columbia, Mo. 140 0 Paso, Tex. 690 KJR Seattle. Wash. 950 K EEP Twin Fails, Idaho 145 0 KHEY El KFSA Ft. Ark. 95 0 Sierra Ariz. 1 420 Newton, Kans. 950 KEES Gladewater, Tex, 143 0 Smith. KHFH Vista, KJRG KELA Centralia. Chekalis, KFSB Joplin, Mo. 1310 KHFI Austin, Tex. 970 KJSK Columbus. Nebr. 900 1220 1 Ark. 1450 Wash. 147 o KFSC Denver, Colo. KHHH Pampa, Tex. 230 KJWH Camden, Tex, 860 I Denver Tex. 1580 KELD El Dorado. Ark. 140 0 KFST Ft. Stockton. K HIP Albuquerque, N.M. 520 KKAL City, 1400 I Pueblo, Colo. 1350 KELI Tulsa, Okla. 143 0 KFT M Ft. Morgan, Colo. KHIT Walla Walla, Wash. 320 KKAM 1250 Kans, 1490 KELK Elko, Nev. 124 0 KFTV Paris, Tex. KHJ Los Angeles, Calif. 930 (KAN Phillipsburg, Mo. 1450 I 070 KKAR Pomona, Calif. 1220 KELO Sioux Falls, S.Dak. 132 0 KFTW Frederiekstown, KHMO Hannibal, Mo. 1230 I 390 Tex. 1300 KELP EI Paso, Tex. 92 0 KFUN Las Vegas, N.Mex. KNOB Hobbs, N.Mex. KKAS Silsbee, Mo. 850 I 400 KKEY Wash. 1150 KELR EI Reno, Okla. 146 o KFUO Clayton, KHOE Truckee. Calif. Vancouver, Mo. 960 I 440 1550 KELY Ely, Nev. 123 0 KF VS Cape Girardeau, KHOG Fayetteville, Ark. K (HI San Francisco. Calif. KFWB Los Angeles. 980 Minn. 930 KENA Mena, Ark. 145 0 Calif. KHOS Tucson, Aria, 940 KKIN Aitkin, 580 I 250 990 KEND Cheyenne, Wyo. 9 80 KFXD Nampa, Idaho KHOF Madera, Calif. KKIS Pittsburg. Calif. San 590 630 KKIT Taos, N.Mex. 1340 KENE Toppenish, Wash. 149 0 KFXM Bernardino, Calif. (HOW Denver. Colo. 1420 Mo. 1550 KENT Anchorage, Alaska 55 0 KFYN Bonham, Tex. KHOZ Harrison, Ark. 900 KKJO St. Joseph. 790 K 1410 KENM Portales, N.Mex. 145 0 KFYO Lubbock, Tez. KHO Spokane. Wash. 590 I(OK Lompoc, Calif. 550 I 320 Tex. 1300 KENN Farmington. N.M. 139 0 KFYR Bismarck, N.Dak. KHRT Minot, N. D. KKUB Brownfield, 1510 I 570 KENO Las Vegas, Nev. 146 0 K(.A Spokane, Wash. KHS1 Hemet. Calif. 320 K LAC Los Angeles, Calif. 1580 1 Falls, Oreg, 960 Houston. Tex. 107 0 KGAF Gainesville, Tex. KHSL Chico. Calif. 290 KLAD Klamath KENR 1600 KENT Prescott. Ariz. 134 KLAK Gallup, N.Mex, 1330 KHUB Fremont, Nebr. I 340 KLAK Lakewood, Colo. KGAL Lebanon, Oreg. 920 KHUht Santa Rosa. Calif. I 5801 KLAM Cordova. Alaska 1450 KENY Bellingham- Ferndale, 1320 Wash. 93 0 KGAR Vancouver. Wash, 1550 KHUZ Borger, Tex. I 490 KLAN Lemoore, Calif. KEOS Flagstaff, KGAS Carthage. Tex. 1590 KHVH Honolulu, Hawaii I 040 KLAV Las Vegas, Nev. 1230 Ariz. 69 0 1340 KEPR Kennevick. Richland- KGAY Salem. Oreg. 1430 KI8E Palo Alto, Calif. I 220 KLBK Lubbock, Tex. 1360 1450 Pasco. Wash. 61 o Kf,B San Diego. Calif. KIBH Seward, Alaska 950 KLBM La Grande. Oreg. 1330 KEPS Eagle Pass. Tex. 127 0 KGBC Galveston, Tex. 1540 KIBL Beeville, Tex. I 490 KLBS Los Banos. Calif. 1230 KERB Kermit, Tex. 60 0 KGBS Los Angeles, Calif. 1020 K1BS Bishop, Calif. I 230 KLCB Libby, Mont. KERC Eastland, Tex. 159 0 KGBT Harlingen, Tex. 1530 KICA Clovis, N.M. 980 KLCN Blytheville, Ark. 910 1280 KERG Eugene. Oreg. 128 0 KGBX SDnnpfield, Mo. 1260 KICD Spencer, Iowa I 240 KLCO Poteau, Okla. KERN Bakersfield, Calif. 141 o KGCA Rugby, N.D. 1450 KICK Springfield, Mo. I 340 KLEA Lovington, N.Mez. 630 KERV Kerrville, Tex. 129 o KGCL East Prairie, Mo. 1080 K1CM Golden, Colo. I 250 KLEB Golden Meadow. La. 1600 KESM Eldorado Springs, Mo. 158 0 KGCX Sidney. Mont. 1480 K ICO Calexico. Calif. I 490 KLEE Ottumwa. Iowa 1480 1130 KEST Boise. Idaho 79 o KGDN Edmonds. Wash. 630 K ICS Hastings. Neb. I 550 KLEI Kallua, Hawaii KETO Seattle. Wash. 159 0 KG EE Bakersfield. Calif. 1230 KICY Nome, Alaska 850 KLEM LeMars, Iowa 1410 KETX Livingston. Tex. 144 0 KGEK Sterling, Colo. 1230 KID Idaho Falls, Idaho 590 KLEN Killeen. Tex. 1050 KEUN Eunice. La. 149 0 KGEM Boise, Idaho 1140 KIDD Monterey. Calif. 630 (LEO Wichita, Kans. 1480 KEVA Evanston, Wyo. 124 o KEEN Tulare, Calif. 1370 KIDO Boise. Idaho 630 KLER Orofino, Idaho 950 KEVL White Castle. La. 159 0 KGEK Long Beach. Calif. 1390 KIEV Glendale. Calif. 870 KLEX Lexington. Mo. 1570 KEVT Tucson, Ariz. 69 o KGEZ Kalispell. Mont. 600 KIFG Iowa Falls, la. I 510 KLFD Litchfield, Minn. 1410 1450 1590 KEWB Oakland, Calif. 91 o KGFF Shawnee. Okla. KIFN Phoenix, Ariz. 860 KLFF Mead, Wash. 1600 KEWI Topeka, Kans. 144 o KGFJ Los Angeles, Calif. 1230 KIFW Sitka, Alaska I 290 KLGA Algona, Iowa KEX Portland. Oreg. 119 o KGFL Roswell. N.Mex. 1400 KIGO St. Anthony, Ida. I 400 KLCN Logan, Utah 1390 KEXO Grand June., Colo. 123 o KGFW Kearney, Nebr. 1340 KIHN Hugo. Okla. 1 340 KLGR Redwood Falls, Minn. 1490 1470 KEYD Oakes. N.Dak. 122 0 KGFX Pierre, S.Dak. 630 KIHR Hood River. Oreg. 1 340 KLIB Liberal, Kans. La. 1230 KEYE Perryton, Tex. 140 o KGGF Coffeyville, Kans. 690 KIJV Huron, S.Dak. 1 340 KLIC Monroe. KEY1 Jamestown, N.Dak. 140 0 KGGM Albuquerque. N.Mex. 610 KIKI Honolulu, Hawaii 830 KLID Poplar Bluff, Mo. 1340 KEYL Long Prairie, Minn. 140 o KGHL Billings. Mont. 790 KIKK Pasadena, Tex. 650 KLIF Dallas, Tex. 1190 14 7 KEYR Tarrytown, Nebr. 69 o KGHM Brookfield. Mo. 0 KI KO Miami. Ariz- I 340 (LIK Jefferson City, Mo. 950 1 1400 KEYS Corpus Christi. Tex. 144 0 KGHO Hoquiam, Wash. 15 6 0 K I KS Sulphur. La. 310 (LIN Lincoln, Nebr. KEYY Provo. Utah 145 o KGHS International Falls. KILE Galveston. Tex. I 400 KLIP Fowler. Calif. 1220 KEYZ Williston. N.Dak. 136 0 Minn. 12 30 KILO Grand Forks, S.Dak. 1 440 KLIQ Portland, Oreg. 1290 KEZU Rapid City. S.Dak. 92 o KGHT Hollister, Calif. 15 20 KILT Houston, Tex. 610 KLIR Denver. Colo. 990 KEZY Anaheim, Calif. 119 0 KGIL San Fernando. Calif. 12 60 KIMA Yakima. Wash. I 460 KLIV San Jose. Cal. 1590 K FAB Omaha, Nebr- Ill o KGIW Alamosa. Colo. 14 50 KIMB Kimball, Nebr. I 260 KLIX Twin Falls. Idaho 1310 K FAC Los Angeles, Calif. 133 0 KGKB Tyler, Tex. 14 90 KIML Gillette. Wyo. I 490 KLI2 Brainerd. Minn. 1380 1540 K FAH Lakewood Center. KGKL San Angelo. Tex. 9 60 K I M M Rapid City, S.D. 1 150 (LKC Parsons, Kans. Wash. 148 0 KGKO Benton. Ark. 8 50 KIMN Denver, Colo. 950 KLLA Leesville, La. 1570 KFAL Fulton, Mo. 90 0 KGLC Miami. Okla. 9 10 KIMO Hilo, Hawaii 850 KLLL Lubbock. Tex. 1460 KFAM St. Cloud. Minn. 145 0 KG LE Glendive, Mont. 5 90 KIMP Mt. Pleasant, Tex. 960 KLME Laramie, Wyo. 1490 1060 KFAR Fairbanks, Alaska 61 0 KGLM Avalon, Calif. 740 KIND Independence. Kans- 1 010 KLMO Longmont, Colo. KFAX San Francisco, Calif. 110 0 KGLN Glenwood Sprigs- Colo. 8 80 KINE Kingsville, Tez. I 330 KLMR Lamar, Colo. 920 KFAY Fayetteville, Ark. 125 0 KGLO Mason Cily. Iowa 13 08 KING Seattle. Wash. I 090 KLMS Lincoln, Nebr. 1480 KFAZ Liberty. Tex. 185 o KGLU Safford. Ariz. 14 80 KINO Winslow. Ariz. I 230 KLMX Clayton, N.Mex. 1450 KFBB Great Falls, Mont, 131 0 KGMB Honolulu, Hawaii 5 90 K1NS Eureka, Calif. 980 KLO Ogden, Utah 1430 KFBC Cheyenne, Wyo. 124 o KGMC Englewood, Cole. I1 50 KINT EI Paso, Tex. I 590 KLOA Ridgecrest, Calif 1240 KFBK Sacramento, Calif. 153 0 KUMI Bellingham, Wash. 7 90 KINY Juneau. Alaska 800 KLOC Ceres, Calif. 920 KFCB Redfield, S. Dak. 138 0 KGMO Cape Girardeau. Mo. 12 20 K1OA Des Moines, Iowa 940 KLOE Goodland. Kans. 790 KFDA Amarillo, Tex. 144 0 KGMR Jacksonville, Ark. 15 00 KIOT Barstow, Calif. I 910 KLOG Kelso, Wash. 490 050 KFDF Van Buren. Ark. 158 0 KGMS Sacramento, Calif. IS 80 KIOX Bay City, Tex, 1 270 (LOH Pipestone, Minn. KFDI Wichita. Kansas 107 0 KGMT Fairbury, Nebr. 13 10 KIPA Hilo, Hawaii I 110 KLOK San Jose, Calif. 170 530 KFDR Grand Coulee. Wash. 136 0 KGNB New Braunfels. Tex. 14 20 KIQS Willows. Calif. 1 560 KLOI Lincoln, Neb. KFEL Pueblo. Colo. 9 70 KGNC Amarillo, Tex. 7 10 KIRO Seattle, Wash. 710 KLOM Lompoc. Calif. 330 KFEQ St. Joseph. Mo. 68 0 KGNO Dodge City. Kans. 13 70 KIRT Mission, Tez. 1 580 KLOO Corvallis, Ore. 340 KFFA Helena. Ark. 136 0 KGNU Santa Clara. Cal. 14 30 KI RV Fresno. Cal. 1 510 KLOS Albuquerque. N. M. 580 KFGQ Boone, Iowa 126 0 KGNS Laredo. Tez. 13 90 KIRX Kirksville, Mo. I 450 K LOU Lake Charles. La. 580 KFGT Flagstaff. Ariz. 93 0 (GO San Francisco. Calif. 8 10 (ISO Sioux Falls, S.Dak. 1 230 KLOW Loveland, Colo. 1570 KFH Wichita. Kans. 133 0 KGOL Palm Desert. Cal. 12 70 KISI Salina. Kan. 910 KLPL Lake Providence, La. 050 KFI Los Angeles. Calif. 64 0 KGOS Torrington. Wyo. 14 90 KISN Vancouver, Wash. 910 KLPM Minnt, N.Dak. 390 140 KFIF Tucson, Ariz. 155 0 KGPC Grafton. N.Dak. 13 40 KIST Santa Barbara, Calif. 1 340 KLPR Okla. City. Okla. KFIV Modesto. Calif. 13 60 KORB West Loma. Cal. 9 00 KIT Yakima, Wash. 1 280 KLRA Little Rock. Ark. 010 KFIZ Fond du Lac. Wis. 14 50 KGRI Henderson. Tex. 10 00 KITE San Antonio, Tex. 990 KLRS Mountain Grove. Mo. 360 KFJB Marshalltown, Iowa 12 90 KGRL Bend, Oreg. 9 40 KIT! Chahalis. Centralia, KLTF Little Falls. Minn. 960 KFJM Grand Forks, N.Dak 13 70 KGRN Grinnell, Iowa 14 10 Wash. 420 KLTI Macon, Mo. 560 KFJZ Ft. Worth. Tex. 12 70 KGRS Paseo, Wash. 13 40 KITN Olympia. Wash. 920 KLTR Blackwell, Okla. 580 KFKA Greeley. Colo. 13 10 KGRT Las Cruces, N.Mex. 5 70 KIUL Garden City. Kans. 1 240 KLTZ Glasgow. Mont. 240 KF KF Bellevue, Wash. 13 30 KGST Fresno, Calif. 16 00 KIUN Petos. Tex. 400 KLUB Salt Lake City. Utah 570 KFKU Lawrence, Kans. 12 50 KGTN Georgetown. Tex. 15 30 KIUP Durango. Colo. 930 KLUG Las Vegas. Nev. 050 KF LA Scott City, Kans. 13 10 KGU Honolulu. Hawaii 7 60 KIVY Crockett. Tex. 1 290 KLUE Longview, Tex. 280 KFLD Floydada, Tex. 9 00 KGUC Gunnison, Colo. 14 90 K I W A Sheldon. Iowa 1 550 KLUV Haynesville La. 580 KFLI Mountain Home. Ida. 12 40 KGUD Santa Barbara. Calif. 9 90 KIX1 Seattle. Wash. 910 KLVI Beaumont. Tex. 560 KFLJ Walsenburg, Colo. 19 80 KGUL Port Lavaca. Tex. 15 60 K1XL Dallas. Tex. 040 KLVL Pasadena. Tex. 480 KFLN Baker. Mont. 9 60 KGVL Greenville. Tex. 14 00 KIXX Provo. Utah 400 KLVI Levelland, Tex. 230 KFLW Klamath Falls, Oreg. 14 50 KGVO Missoula. Mont. 12 90 KIXI Amarillo. Tex. 940 KLWN Lawrence, Kans. 320 KFLY Corvallis, Oreg. 12 40 KGVW Belgrade. Mont. 6 30 KIIZ El Paso, Tex. K LWT Lebanon, Mo. 230 KFMB San Diego. Cal, 7 60 KGW Portland, Oreg. 620 KJAM Madison. S.Dak. 1 390 KLWW Cedar Rapids. Iowa 450 KFM1 Tulsa, Okla. 10 50 KGWA Enid, Okla. 9 60 (JAN Atlantic, Iowa 1 220 KLYD Bakersfield. Calif. 350

98 RADIO -TV EXPERIMENTER C.L. Location K c. G.L. Location Kc. I C.L. Location Ka. C.L. Location Ke. KLYQ Hamilton. Mont. 9 80 KOFE Pullman. Wash. 1150' KPOR Quincy, Wash. 13 70 KRSY Roswell. N.Mex. 1290 KLYR Clarksville, Ark. 13 60 KOF1 Kalispell. Mont. 9301 KPOS Post, Tex. 13 70 KRTN Raton, N.Mex. 1490 K12 Denver. Colo. 5 60 KOFO Ottawa. Kans. 1220 KPOW Powell, Wyo. 12 60 KRTR Thermopolis, Wyo, 1490 KMA Shenandoah. Iowa 9 60 KOFY San Mateo. Calif. 1050 KPPC Pasadena, Calif. 124 0 KRUN Ballinger. Tex. 1400 KMAC San Antonio. Tex. 6 30 KOGA Ogallala. Nebr. 930 KPO Wenatchee. Wash. 56 0 KRUS Ruston. La. 1490 KMAD Madill. Okla. 15 50 KOGO San Diego, Calif. 600 KPRB Redmond. Oreg. 1240 1

JUNE-JULY, 1966 99 WNKTE^8 C.L Location !Cc. C.L. Location Kc C.L. Location Ka. KUOM Minneapolis, Minn. 770 KWHI Brenham. Tex. 128 0 KYND Tempe. Ariz. 580 KUPD Tempe, Aria. 060 KWHK Hutchinson, Kans. 126 0 KYNG Coos Bay. Oreg. 420 KUPI Idaho Falls, Idaho 980 KWHN Fort Smith. Ark. 132 0 KYNO Fresno, Calif. 300 Lr>JI / O KUPK Garden City, Kan. I 050 KWHO Salt Lake City. Utah 80 0 KYNT Yankton, S.Dak. 450 KURA Moab, Utah 450 K W H W Altus. Okla. 145 0 KVOK Houston. Tex. 590 KURL Billings. Mont. 730 KWIC Salt Lake City. Utah 155 0 KVOR Blythe, Calif. 450 KURV Edinburg, Tex. 710 KWIK Pocatello. Idaho 12 40 KYOS Merced. Calif. 480 0,,o@ KURY Brookings, Ore. 910 KWIL Albany. Oreg. 790 KYOU Greeley, Colo. 450 KUSD Vermillion. S.Dak. 690 KWIN Ashland, Oreg. 580 KYRO Potosi, Mo. 280 KUSH Cushing. Okla. 600 KWIP Merced, Calif. 580 KYSM Mankato. Minn. 230 C.L. Location /Cc. KUSN St. Joseph. Mo. 270 KWIQ Moses Lake, Wash. 260 KYSN Colorado Sprgs.. Colo. 460 KUTA Blanding, Utah 790 KWIV Douglas. Wyo. 050 KYSS Missoula, Mont. 910 KTCB Malden, Mo. 1470 I(UTI Yakima. Wash. 980 KWIZ Santa Ana. Calif. 480 KYUM Yuma. Ariz. 560 KTCR Minneapolis, Minn. 690 KUTY Palmdale. Calif. 1 470 K W 11 Portland. Oreg. 080 KYVA Gallup. N.Mex. 1230 KTCS Fort Smith. Ark. 1410 KUVR Holdredge. Nebr, 1 380 KWK St. Louis. Mo. 380 KYW Philadelphia. Pa. 1060 KTDL Farmersville, La. 1470 KUXL Golden Valley. Minn. I 570 KWKC Abilene, Tex. 340 KZEE Weatherford. Tex. 1220 KTDO Toledo. Oreg. 1290 KUZN W. Monroe. La. 1 310 KW KH Shreveport, La. 130 KZEY Tyler, Tex. 690 KTEE Idaho Falls. Idaho 1260 KUZZ Bakersfield. Calif. 800 KW KW Pasadena, Calif. 300 KZIP Amarillo. Tex. 1310 KIEL Walla Walla. Wash. 1490 KVAL Sauk Rapids, Minn. 800 KW KY Des Moines, Iowa I50 KZIX Fort Collins, Colo. 600 KTEM Temple. Tex. 1400 KVAN Camas. Wash. 1 480 K W LA Many. La. 530 KZNG Hot Springs, Ark. 1470 KTEO San Angelo, Tez. 1940 KVAS Astoria, Ore. 230 K W LC Decorah, Iowa 240 (ZOE Princeton. 111. 1490 KT ER Terrell, Tex. 1570 KVBR Brainerd, Minn. 340 K W LG Wagoner, Okla. 530 KZOL Farwell. Tex. 1570 KTFI Twin Falls. Idaho 1270 KVCK Wolf Point. Nebr. 1 450 KWLM Willmar. Minn. 340 (ZOO Honolulu, Hawaii 1210 KTFO Seminole, Tenn. 1250 KVCL Winnfield. La. 270 KWMT Ft. Dodge. Iowa 540 KZOT Marianna, Ark. 1460 KTFS Texarkana. Tex. 1400 KVCV Redding. Calif. 600 KWNA Winnemucca. Nev. 400 KZOW Globe, Ariz. 1240 KTHE Thermopolis, Wyo. 1240 KVEC San Luis Obispo. Calif. 920 KWNO Winona. Minn. 230 KZUN Opportunity, Wash. 630 KTHO Tahoe Valley, Calif. 590 KVEE Conway. Ark. 330 KWNS Pratt. Kans. 290 KVYM Cape Girardeau. Mo. 1220 KTHS Berryville. Ark. 1480 KVEG Las Vegas. Nev. 970 KWNT Davenport, Iowa 580 KZZN Littlefield. Tex. 1490 KTHT Houston. Tex. 790 KVEL Vernal, Utah 250 KWOA Worthington. Minn. 730 VOUS Argentia. Nfld. 1480 KTIB Thibodaux. La. 630 KVEN Ventura. Calif. 450 KWOC Poplar Bluff. Mo. 9 30 WAAA Winston -Salem. N.C. 980 KTIL Tillamook. Oreg. 590 KVET Austin, Tex. 300 KWOE Clinton, Okla. 1320 WAAR Wrtester, Mass. 1440 KTIM San Rafael, Calif. 510 KVFC Cortez. Colo. 740 KWON Bartlesville, Okla. 1400 WAAC Terre Haute. Ind. 1300 KTIP Porterville. Calif. 450 KVFD Ft. Dodge. Iowa 400 KWOR Worland, Wyo. 1340 WAAF Chicago. III. 950 KTIS Minneapolis, Minn. 900 KVGO Great Bend. Kans. 590 KWOS Jefferson City. Mn. 1240 WAAG Adel. Ga. 1470 KTIX Pendleton, Ore. 240 KVI Seattle. Wash. 570 KWOW Pomona. Calif. 1600 WAAK Dallas, N.C. 960 KT KN Ketchikan, Alaska 930 KVIC Victoria. Tex. 340 KWPC Muscatine. Iowa 800 WAAM Ann Arbor. Mich. 11600 KTKR Taft. Calif. 310 KVIL Highland Park, Tea, 150 KWPM West Plains. Mo. 1450 WAAT Trenton, N.J. 1300 KIKI Tucson. Ariz. 990 KVIM New Iberia. La. 360 KWPR Claremore. Okla. 1270 WAAX Gadsden. Ala. 570 KTLD Tullulah, La. 360 (VIN Vinita, Okla. 470 KWKC Woodburn. Ore. 940 WAAY Huntsville, Ala. 1550 KILN Denver, Colo. 280 KVIO Cottonwood, Ariz. 600 KWRD Henderson, Tex. 1470 WABA Aguadilla. P.Rieo 850 KILO Mountain Home, Ark. 240 KVIP Redding, Calif. 540 KWRE Warrenton. Mo. 7311 WABB Mobile, Ala. 1480 KTLQ Tahlequah. Okla. 350 KVKM Monahans, Tex. 330 KWRF Warren. Ark. 860 WABC New York. N.Y. 770 KTLU Rusk, Tex. 580 KVLB Cleveland. Tex. 410 (WHO New Roods. La. 1500 WABD Ft. Campbell. Ky. 1370 KTLW Texas City. Tex. 920 KVLC Little Rock, Ark. 050 KWRO Coquille, Oreg. 630 WABF Fairhope. Ala. 1220 KTMC McAlester. Okla. 400 KVLF Alpine, Tex. 240 K W RT Boonville, Mn. 1370 WARG Greenwood. Miss. 960 KTMN Trumann, Ark. 530 KV LG LaGrange. Tex. 570 KWRV McCook. Nebr. 1360 WASH Deerfield, Va. 1150 KT MS Santa Barbara. Calif. 250 KVLH Paulo Valley. Okla. 470 KWRW Guthrie. Okla. 1490 WABI Bangor. Maine 910 KTNC Falls City. Nebr. 230 KVLL Livingston, Tex. 220 KWSC Pullman. Wash. 1250 WAB1 Adrian, Mieh. 1490 KTNM Tucumcari, N.Mex. 400 KVLV Fallon. Nev. 980 KWSD Mt. Shasta. Calif. 620 WABL Amite. La. 1570 KTNT Tacoma. Wash. 400 KVMA Magnolia. Ark 690 KWSH Wewoka- Seminole WABO Waynesboro. Miss. 990 KTOB Petaluma. Cal. 490 KVMC Colorado City, Tex. 320 Oklahoma 12 60 WABQ Cleveland. Ohio 1540 KTOC Jonesboro. La. 920 KVML Sonora. Calif. 450 KWSL Grand Junction, Colo. 19 40 WARR Winter Park, Fla. 1440 KTOD Sinton. Tez. 590 KVNC Winslow. Ariz. 010 (WOO Wasco, Calif. 10 50 WAGT Tuskegee, Ala. 580 (TOE Mankato. Minn. 420 KVNI Coeur d'Alene, Idaho 240 KWTC Barstow, Calif. 12 30 WABV Abbeville. S.C. 1590 KTOH Lihue, Hawaii 490 KVNU Logan, Utah 610 KWTO Springfield, Mo. 5 60 WABY Albany. N.Y. 1400 KTOK Oklahoma City, Okla. 0011 KVOB Bastrop, La. 340 t(WTX Waco. Tex. 12 30 WABZ Albemarle. N.C. 1010 KTON Belton. Tex. 940 KVOC Casper, Wyo. 230 K W UN Concord, Cal. 14 80 WACA Camden, S.C. 1590 KTOO Henderson. Nev. 280 KVOD Albuquerque, N. Mex. 730 KWVR Enterprise. Oreg. 13 40 WACB Kittanning, Pa. 1380 KTOP Topeka. Kans. 490 KVOE Emporia, Kans. 400 KWVY Waverly. Iowa 14 70 WAGE Chicopee. Mass. 730 KTOT Big Bear Lake, Cal. 050 KVO1: Ogden. Utah 490 KWWL Waterloo. Iowa 13 30 WACI The Dalles. Ore. 1300 KTOW Sand Spring. Okla. 940 KVOL Lafayette. La. 330 KWXY Cathedral City. Cal. 13 40 WACI( Newark, N.Y. 1420 KTPA Prescott. Ark. 370 KVOM Morrilton, Ark. 800 KWYK Farmington. N.Mex. 9 60 WACL Waycross, Ga. 570 KTHB Modesto. Calif. 800 (VON Napa. Calif. 440 KWYN Wynne. Ark. 14 00 WACO Waco, Tex. 1480 KTRC Santa Fe. N.Mex. 4110 KVOO Tulsa. Okla. 170 KWYO Sheridan. Wyo. 14 10 WACO Columbus, Miss. 1050 KTRE Lufkin. Tex. 420 KVOP Plainview. Tex. 400 KWYR Winner. S.Dak. 12 60 WACI Tuscaloosa, Ala. 1420 KTRF Thief River Falls. KVOR Colo. Springs. Colo. 300 KWYZ Everett, Wash. 12 30 WACY Moss Point, Miss. 1460 /lint'. 230 KVOU Uvalde. Tex. 400 KXA Seattle. Wash. 7 70 WADA Shelby. N.C. 1390 KTRG Honolulu, Hawaii 990 KVOW Riverton. Wyo. 450 KXAR Hope, Ark. 14 90 WADE Wadesboro, N.C. 1210 KTRH Houston, Tex. 740 (VOX Moorhead, Minn. 280 KXEL Waterloo. Iowa 15 40 WADI( Newport, R.I. 1540 KTRI Sioux City. Iowa 1470 KVOY Yuma. Ariz. 400 KXEN FcstusSt. Louis, Mo. I 010 WADM Decatur. Ind. 1540 KTRM Beaumont, Tex. 990 KVOZ Laredo. Tex. 490 KXEO Mexico, Mo. 13 40 WADO New York. N.Y. 1280 KTRN Wichita Falls. Tex. 1290 KVPI Ville Platte. La. 050 KXEW Tucson, Ariz. 00 WADS Ansonia, Conn. 690 KTRY Bastrop. La. 730 KVRC Arkadelphia. Ark. 240 KXEX Fresno. Calif. 1550 WAEB Allentown. Pa. 790 KTSA San Antonio. Tex. 550 KVRD Cottonwood, Ariz. 240 KXG1 Ft. Madison. Iowa 1360 WAEL Mayaguez. P.Rico 600 KTSL Burnett, Tex. 340 KVRE Santa Rosa. Calif. 460 KXGN Glendive, Mont. 1400 WA EW Crossville. Tenn. 1330 KTSM El Paso, Tex. 380 (VON Salida. Colo. 340 KXGO Fargo, N. Dak. 790 WA FC Staunton, Va. 900 KTTN Trenton, Mo. 600 KVRS Rock Springs. Wyo. 300 IC XIC Iowa City. Iowa 800 WAFS Amsterdam. N.Y. 1570 KTTR Rolla, Mo. 490 KVSA McGehee. Ark. 220 KXIT Dalhart. Tex. 1410 WAGC Centre, Ala. 1550 KITS Springfield. Mo. 400 KVSF Santa Fe. N.Mex. 2(10 (XIV Phoenix. Ariz. 1400 WAGE Leesburg. Va. 1290 KITT Columbus. Nebr. 510 KVSH Valentine, Nebr. 940 KXIK Forrest City, Ark. 050 WAGE Dothan. Ala. 1320 KTUC Tucson. Ariz. 400 KVSI Montpelier. Ida. 450 KXKW Lafayette. La. 1520 WAGG Franklin, Tenn. 950 KTUE Tulsa. Tex. 260 KVSO Ardmore. Okla. 240 KXL Portland. Oreg. 750 WALL Lancaster. S. C. 1550 KTUI Sullivan, Mo. 560 KVWC Vernon. Tex. 490 KXLE Ellensburg, Wash. 1240 WAGM Presque Isle, Maine 950 KTW Seattle. Wash. 250 KVWG Pearsall. Tex. 280 I(XLF Butte. Mont. 1970 WAIN Menominee- Mich. 1340 KTWO Casper. Wyo. 470 KVWM Show Low. Ariz. 970 (XLI Helena, Mont. 1240 WAGR Lumberton, N.C. 580 KTXI Jasper. Tea. 350 KVWO Cheyenne. Wyo. 370 KXLL Missoula. Mont. 1450 WAGS Bishopville, S.C. 1380 KTXO Sherman. Tex. 500 KVYL Holdenville Okla. 370 KXLO Lewiston, Mont. 1230 WADY Forest City. N.C. 1920 KTYM Inglewood. Calif. 480 KWAC Bakersfield, Calif. 490 KXLR Little Rock. Ark. 1150 WAIA College Park. Ga. 1570 KUAI Eleele. Kanai. Hawaii 720 KWAD Wadena, Minn. 920 KXLW Clayton, Mo. 1320 WAIK Galesburg, III. 1590 KUAM Agana. Guam 610 KWAK Stuttgart, Ark. 240 KXLY Spokane. Wash. 920 WAIL Baton Rouge. La. 1460 KUBA Yuba City, Calif. 160 0 KWAL Wallace, Idaho 620 KXO El Centro. Calif. 1230 WA I M Anderson, S.C. 1230 KUBC Montrose. Colo. 5 80 KWAM Memphis. Tenn. 990 KXOA Sacramento. Calif. 1470 WAIN Columbia. Ky. 1270 KUBO San Antonio. Tez. 13 10 KWAT Watertown. S.Dak. 950 KXOK St. Louis. Mo. 630 WAIR Winston- Salem, N.C. 1340 KUDE Oceanside. Calif. 132 0 KWAY Forest Grove. Oreg . 1570 KXOL Ft. Worth. Tex. 1560 WAIT Chicago. Ill. 820 KUDI Great Falls. Mont. 14 So I(WBA Baytown. Tex. 1360 KXOX Sweetwater. Tez. 1240 WAIF Decatur. Ala. 1490 KUOL Fairway. Kan. 13 80 KWBB Wichita. Kans. 1410 KXRA Alexandria, Minn. 1490 WAIR Morgantown. W.Va. 1440 KUDU Ventura. Calif. 159 0 KWBC Navasota, Tex. 1550 KX R1 Russellville, Ark. 1490 WAKI McMinnville. Tenn. 1230 KUDY Spokane. Wash. 120 U (WOE Beatrice. Nebr. 1450 KXRO Aberdeen. Wash. 1320 WAKN Aiken. S.C. 990 KUEN Wenatchee, Wash. 90 U KWRD Boone, Iowa 1590 KXRX San Jose. Calif. 1500 WAKO Lawrenceville. Ill. 910 KUEQ Phoenix. Ariz. 7 40 KWIJW Hutchinson, Kans. 1450 KXXL Bozeman. Mont. 1450 WAI(R Akron. Ohio 590 KUGN Eugene, Oreg. 59 01 KWCB Searcy. Ark. 1300 KXXX Colby. Kans. 790 WA KY Louisville. Ky. 790 KUII( Hillsboro, Oreg. 13 601 I(WCL Oak Grove. La. 1280 KXYZ Houston, Tex. 1320 WALD Walterhoro, S.C. 220 KW Walla Walla. Wash. 1420 K W CO Chickasha. Okla. 1560 KYA San Francisco, Calif. 1200 WALE Fall River. Mass. 400 KUKA San Antonio, Tex. 1250 (WEB Rochester. Minn, 1270 KYAC Kirkland. Wash. 1460 WALL Albany. Ga. 590 KUKI Ukiah. Calif. 1400 (WED Seguin, Tex. 1580 KYAL McKinney. Tex. 1600 WALK Patchogue, N.Y. 370 KU KU Willow Springs, Mo. 1330 KWEI Weiser. Idaho 1260 KYCA Prescott. Aria. 14911 WALL Middletown. N.Y. 340 KULA Honolulu. Hawaii 690 KWEL Midland. Tex. 1440 KYCN Wheatland. Wyo. 1340 WALM Albion. Mich. 260 KULE Ephrata. Wash. 730 KWEW Hobbs, N.Mex. 1480 KVED Builnieton. La. 11511 WALO Humacao. P.R. 240 (Ulf' El Campo Tex. 13 90 KWFA Merkle Tex. 151 III KYES Roseburg, Oreg. 950 WALT Tampa, Fia. 110 KULY Ulysses, Kan. 14 20 KWFR San Angelo. Tex. 12 60 KT ET Fayette, Idaho 1450 WALY Herkimer, N.Y. 420 KUMA Pendleton, Oreg. 12 90 K W F S Eugene. Oreg. 15 40 KYJC Medford. Oreg. 1230 WAMD Aberdeen. Md. 970 KUNO Corpus Christi, Tex. 14 00 KWFT Wichita Falls, Tex. 6 20 KYME Boise, Idaho 740 WAME Miami, Fla. 260 KUOA Siloam Springs. Ark. 12 90 KWG Stockton. Calif. 12 30 KYMN Oregon City. Ore. 1520 WAMI Opp, Ala. 860

100 RADIO -TV EXPERIMENTER C.L. Location Ka. C.L. Location /Cc. C.L. Location Kc. C.L. Location Ka. WAML Laurel, Miss. 340 WBBF Rochester. N.Y. 950 WBSC Bennetsville, S.C. 550 WCMN Arecibo, P.R. 1280 WAMM Flint. Mich. 420 WBB1 Abingdon. Va. 1230 WBSG Blackshear, Ga. 350 WCMP Pine City, Minn. 1350 WAMO Homestead, Pa. 86C WBBK Blakely, Ga. 1260 WBSM New Bedford, Mass. 420 WCMR Elkhart, Ind. 1270 WAMR Venice. Fla. 320 WBBL Richmond, Va. 1480 WBSR Pensacola. Fla, 540 WCMS Norfolk, Va. 1050 WAMS Wilmington. Del. 380 WORM Chicago, Ill. 780 WBT Charlotte, N.C. 110 WCMT Martin, Tenn. 1410 WAMW Washington. Ind. `80 WBBO Forest City, N.C. 780 WBTA Batavia. N.Y. 490 WCMY Ottawa. Ill. 1430 WAMY Amory. Miss. 580 WOBQ Augusta, Ga. 1340 WBTC Uhrichsville, O. 540 WCNB Connersville, Ind, 1580 WANA Anniston. Ala. 490 W B B H Travelers Rest, S.C. 1580 WBTH Williamson, W,Va. 400 WCNC Elizabeth City. N.C. 1240 WANB Waynesburg. Pa. 580 WBBT Lyons, Ga. 1340 WBT M Danville, Va. 330 WCND Shelbyville, Ky, 940 WANN Annapolis, Md. 190 WB13W Youngstown, Ohio 12411 WBTN Bennington. Vt. 370 WCNF Weldon, N.C. 1400 WANS Anderson. S.C. 280 WBBX Portsmouth, N.H. 1380 WBTO Linton. Ind. 600 WCNH Quincy. Fla. 1230 WANT Richmond. Va. 990 WBBZ Ponca City. Okla. 1230 WBTS Bridgeport. Ala. 480 WCNL Newport, N. H. 1010 WANV Waynesboro. Va. 970 WBCA Bay Minette. Ala. 1150 WBUC Buckhannon, W.Va. 460 WCNR Bloomsburg, Pa- 990 WANY Albany. KY. 1390 WBCB Levittown. Pa. 1490 WUU D Trenton, N.J. 260 W CN S Canton, O. 900 WAOK Atlanta. Ga. 13811 W13CH Hastings. Mich. 1221) WBUG Rideeland. S.C. 430 WCNT Centralia. III. 1210 WAOP Ostego, Mich. 980 WBCI Williamsburg, Va. 740 WBUT Butler. Pa. Oio WCND Crestview. Fla. 1010 WAOV Vincennes, Ind. 1450 W BC K Battle Creek. Mich. 930 WBUX Doylestown, Pa. 570 WCNW Hamilton, Cl. 1560 WAPA San Juan. P.R. 680 WBCM Bay City, Mich. 1440 WBUY Lexington. N.C. 440 WLNX Middletown, Conn. 1150 WAPC Riverhead, N.Y. 1570 WBCO Bucyrus. Ohio 540 WBUZ Fredonia. N.Y. 570 WCOA Pensacola, Fla. 1370 WAPE Jacksonville, Fla. 690 WBCU Union. S.C. 460 WBVL Barbourville, Ky. 950 WCOC Meridian. Miss. 910 WAPF McComb. Miss. 980 WBEC Pittsfield, Mass. 420 WBVM Utica, N.Y. 550 WCUF Immokalee. Fla. 1490 WAPG Arcadia, Fla. 480 WBEE Harvey, III. 570 WBVP Beaver Falls. Pa. 230 WCOG Greensboro, N.C. 1320 WAPI Birmingham, Ala. 070 WBEJ Elizabethlon, Tenn. 240 W BY E Calera, Ala. 370 WCOH Newnan, Ga, 1400 WAPL Appleton. Wis. 570 WOEL Beloit. Wis. 380 WBYG Savannah. Ga. 450 WW1 Coatesville, Pa. 1420 WAPO Chattanooga. Tenn. 150 WBEN Buffalo, N.Y. 930 WBYS Canton. Ill. 560 WCOL Columbus. Ohio 1230 WAPX Montgomery. Ala. 600 WBER Mencks Corner. S. C. 950 WBZ Boston. Mass. 030 WCON Cornelia, Ga, 1450 WAQE Towson. Md. 570 WBET Brockton. Mass. 460 WBZA Glens Falls. N.Y. 410 WCOP Boston. Mass. 1150 WAQ1 Ashtabula. Ohio 600 WBEU Beaufort. S.C. 960 WBZB Selma, N.C. 090 WCOR Lebanon, Tenn. 900 WAQY Birmingham. Ala. 220 WBEV Beaver Dam, Wis. 4311 WBZE Wheeling. W. Va. 470 WCOS Columbia, S.C. 1400 WARA Attleboro, Mass. 320 WBEX Chillicothe, Ohio 490 WRZY Torrington, Conn. 990 WCOU Lewiston, Maine 1240 WARB Covington, La. 730 WBFD Bcdlord. Pa. 310 WCAI Fort Myers, Fla. 350 WCUV Montgomery, Ala. 1170 WARD Johnstown, l'a. 490 WBFJ Woodbury. Tenn. 540 WCAL Northfield, Minn. 770 W CO W Sparta, Wis. 1290 WARE Ware. Mass. 250 WBGC Chiply. Fla. 240 WCAM Camden, N.J. 310 WCOY Columbia. Pa. 1580 WARF Jasper, Ala. 240 WBGN Bowling Green, Ky. 340 WCAO Baltimore. Md. 600 WCPA Clearfield, Pa. 900 WARI Abbeville. Ala. 480 WBGS Slidell. La. 560 WCAP Lowell, Mass. 980 WCPC Houston, Miss. 940 WARK Hagerstown. Md. 490 WOHB Fitzgerald, Ga. 240 WCAR Detroit. Mich. 1130 WCPH Etowah, Tenn. 1220 WARM Scranton. Pa. 590 W OHC Hampton. S.C. 270 WCAT Orange. Mass. 1390 WCPM Cumberland. Ky. 1280 WARN Ft. Pierce, Fla. 330 WBHF Cartersville, Ga. 450 WCAU Philadelphia. Pa. 1210 WCPO Cincinnati, Ohio 1230 WARO Canonsburg, Pa, 540 WBHM Birmingham, Ala. 550 NCAW Charleston, W.Va, 680 WCPS Tarboro, N.C. 760 WART Moulton. Ala. 30 WIMP Huntsville. Ala. 230 WCAY Cayce. S.C. 620 WCQS Alma. Ga. 14 WARU Peru. Ind, 6110 WBHT Brownsville. Tenn. 520 WCAZ Carthage. Ill. 990 WCHA Effingham. III. 10 90 WASA Havre de Grace. Md. 330 WHIA Augusta, (ia, 230 WCBA Corning, N.Y. 1350 WCRB Waltham. Mass. 13 30 WASC Spartanburg. S.C. 530 WBIB Centreville, Ala. 590 WCBG Chambersburg, Pa. 1590 WCHE Cheraw. S.C. 14 20 WASK Lafayette. Ind. 4 50 WUIC Islip, N.Y. 540 WCBI Columbus, Miss. 550 WCRI Scottsboro, Ala. 10 50 WATA Boone. N.C. 4 50 WBIE Marietta. Ga. 080 WCHL Benton, Ky. 1290 WCH I( Morristown, Tenn. 11 50 WATC Gaylord. Mich. 9 00 WHIG Greensboro, N.C. 470 WCBM Baltimore, Md. 680 WCRL Oneonta. Ala. 15 70 WATE Knoxville. Tenn- 6 20 WBIL Leesburg, Fla. 410 WCBS New York, N.Y. 880 WCRM Clare. Nigh. 990 WATH Athens, Ohio 9 70 WBIL' Booneville. Miss- 400 WCBT Roanoke Rapids, N.C. 1230 WCHO Johnstown, Pa. 1230 WATI Indianapolis, Ind. 8 10 W B I R Knoxville. Tenn. 240 WCBY Cheboygan, Mich. 1240 WCHS Greenwood. S.C. 1450 WATK Antigo. Wis. 9 00 WBIS Bristol. Conn. 440 WCCC Hartford, Conn. 1290 WCHT Birmingham. Ala. 1260 WATM Atmore, Ala. 15 90 WBIW Bedford. Ind. 340 WCCF Punta Gorda, Fla. 1580 WCRV Washington, N.J. 1580 WAIN Watertown- N.Y. 12 40 WBIX Jacksonville Beach, WCCM Lawrence. Mass. 800 WCRW Chicago III. 1240 WATO Oak Ridge. Tenn. 129 0 Fla. 010 WCCN Neillsville, Wis. 1370 WCRY Macon, Ga. 900 WATP Marion, S.C. 14 30 WBIZ Eau Claire, Wis- 400 WCCO Minneapolis -St. Paul. WCSA Ripley. Mass. 1260 WATK Waterbury. Conn. 13 20 WBICH Hattiesburg, Miss. 950 Minn. 830 WCSC Charleston. S.C. 1390 WATS Sayre, Pa. 9 60 WORN Newton, Miss. 410 WCCW Traverse City. Mich- 1310 WCSH Portland, Maine 970 WATT Cadillac. Mich. 12 40 WBKV West Bend. Wis. 470 WCOJ Edenton. N.C. WUSI Columbus. Ind. 1010 WATV Birmingham, Ala, 9 00 WBLA Elizabethtown. N.C. 440 WCDL Carbondale, Pa. 1440 WCSI Morris, Ill. 1550 WATW Ashland. Wis. 14 00 WBLC Lenoir City. Tenn. 3611 WCDS Glasgow, Ky. 1440 WCSL Cherryville. N. C. 1590 WATY N. Atlanta. Ga, G 80 WBLE Batesville. Miss. 2911 WCDT Winchester, Tenn. 1340 WCSM Celina. Ohio 1350 WATZ Alpena. Mich. 14 50 W B L F 13elletonte. l'a. 330 WCEC Rocky Mount, N.C. 810 WCSK Hillsdale. Mich. 1340 WAUB Auburn, N.Y. IS 90 WOLG Lexington, Ky. 300 WCED DuBois. Pa. 1420 WCSS Amsterdam. N.Y. 1490 WAUC Wauchula, Fla, 13 10 WI3L1 Dalton. Ga. 230 WCEF Parksburg, W.Va. 1050 WCST Berkeley Springs, WAUD Auburn. Ala. 12 30 WBLO Evergreen, Ala. 470 WCEH Hawkinsville, Ga. 610 W.Va. 1010 WAUG Augusta. Ga. 10 5U WBLR Batesburg. S.C. 430 WCEM Cambridge. Md. 1240 WCTA Andalusia, Ala. 920 WAUK Waukesha, Wis. 1310 WBLT Bedford, Va. 350 WCEN Mt. Pleasant. Mich. 1150 WCTC New Brunswick, N.J. 1450 WAVA Arlington. Va. 780 WBLU Salem, Va. 480 WCER Charlotte. Mich. 1390 WCTR Chestertown, Md. 1530 WAVE Louisville. Ky. 970 WBLY Springfield. Ohio 600 WCFL Chicago. Ill. 1000 WCIT Corbin. Ky. 680 WAVI Dayton. Ohio 1210 WRMA Beaufort. N.C. 400 WCFR Springfield. Vt. 1480 WCTW New Castle, Ind. 1550 WAVL Apollo. Pa. 910 W li MC McMinnville. Tenn. 960 WCFV Clifton Forge, Va. 1230 WCUB Manitowoc, Wis. 980 WAVN Stillwater, Minn. 1220 WBMD Baltimore, Md. 750 WCGA Calhoun. Ga. 900 WCUE Cuyahoga Falls, OhIo 1150 WAVO Avondale Estates. Ga. 1420 WBhIE Belfast. Me. 1230 WCGC Belmont. N.C. 1270 WCUM Cumberland, Md, 1230 WAVP Avon Park, Fla. 1390 W13101( West l'oint, Ga. 1310 WCGO Chicago Hghts., Ill. 1600 WCVA Culpeper, Va. 1490 WAVU Albertville, Ala. 630 W BML Macon, Ga. 1240 WCGR Canandaigua, N.Y. I550 WCVI Cunnellsville, Pa. 1340 WAVY Portsmouth, Va. 1350 WBMT Black Mountain, N.C. 1350 WCH A Chambersburg. l'a. 800 WCVL Crawfordsville, Ind. 1550 WAVZ New Haven, Cann. 13011 WBNB Charlotte Amalie. WCHB Inkster. Mich. 1440 WCVP Murphy. N.C. 600 WAWA West Allis. Wis. 1590 Virgin Islands 1000 WCHE Westchester, Pa. 1520 W C V S Springfield. Ill. 1450 WAWK Kendallville, Ind- 1570 WBNC Conway. N.H. I050 WCHI Chillicothe. Ohio 1350 W C W A Toledo. O. 1230 WAWZ Zarephath, N.J. 1380 WBNL Boonville. Ind, 1540 WCHJ Brookhaven. Miss. 1470 WCWC Ripon, Wis. 1800 W AXE Vero Beach, F la. 1370 W BNO Bryan, Ohio 1520 WCHK Canton. Ga. 1290 WCWR Tarpon Springs. Fla. 1470 WAXK Superior. Wis. 1320 WBNR Beacon. N.Y. 1260 WCHL Chapel Hill. N.C. 1360 WCYB Bristol, Va. 690 WAXU Georgetown, Ky. 1580 WBNS Columbus. Ohio 1460 WCHN Norwich. N.Y. 970 WCYN Cynthiana. KY. 1400 WAXX Chippewa Falls. Wis. 1130 W BNT Oneida. Tenn. 1310 WCHO Washington Court WDAD Indiana, Pa- 1450 WAYU Waynesboro. Va. 14911 WBNX New York. N.Y. 1380 House. Ohio 12 50 WDAE Tampa- Fla. 1250 WAY E Baltimore. Md. 860 WOOB Galax. Va. 1360 WCHS Charleston. W.Va. 5 80 WDAF Kansas City. Mo. 610 WAY K Valparaiso, Ind. 1500 WBOC Salisbury, Md. 960 WCHV Charlottesville. Va. 12 60 WOAI( Columbus, Ga. 540 WAYN Rockingham. N.C. 900 WBOI( New Orleans, La. 800 W CI L Carbondale, Ill. 10 20 WDAL Meridian, Miss. 1330 WAYR Orange Park. Fla. 550 WOOL Bolivar. Tenn. 1560 WCIN Cincinnati, Ohio 14 80 WDAN Danville. III. 1490 WAYS Charlotte, N.C. 610 WBOP Pensacola, Fla, 980 WCIT Lima, Ohio 9 40 W DAR Darlington. S.C. 1350 WAYX Waycross. Ga. 1230 WOOS Brookline- Mass. 1600 WCJU Columbia. Miss. 14 50 WDAS Philadelphia, Pa. 1480 WAYZ Waynesboro. Pa. 1380 WBOW Terre Haute. Ind. 1230 WCKB Dunn. N.C. 7 80 WDAX McRae, Ga. 1410 WAZA Bainbridge. Ga. 1360 WBOX Coaalusa, La. 920 WCKD Ishpenning, Mich. 9 70 WDAY Fargo. N. Dak. 970 WAZE Clearwater, Fla. 860 WBOY Clarksburg. W.Va. 1400 WCKI Greer. S.C. 13 00 W D IIC Escanaba. Mich. 680 WAIF Yazoo City. Miss. 1230 WBI'R Bayamon. P.R. 1600 WCKM Winnsboro, S.C. 12 50 WDBF Delray Beach. Fla. 1420 WAIL Hazelton, Pa. 149(( WRPZ Lock Haven. Pa. 1230 WCKY Cincinnati, Ohio 15 30 W U 111 Roanoke. Va. 960 WAZS Summerville, S.C. 780 WRRB Mt. Clemens. Mich. 1430 WCLA Claxton, Ga. 14 70 WDBL Springfield, Tenn. 1590 WAZY Lafayette. Ind. 1410 WBRC Birmingham, Ala. 960 WCLB Camilla. Ga. 12 20 W D 13M Statesville, N.C. 550 W BAA West Lafayette, Ind. 920 WBRD Bradenton. Fla. 1420 WCLC Jamestown, Tenn, 12 60 WOBO Orlando, Fla. 580 WBAB Babylon. N.Y. 1440 WBRE Wilkes - Barre, Pa. 1340 WCLD Cleveland, Miss. 14 90 WDBQ Dubuque. Iowa 490 WRAC Cleveland. Tenn. 1340 WBR(l Lynchburg: Va. 1050 WCLE Cleveland, Tenn. 15 70 WDCF Dade City. Fla. 350 WBAG Burlington. N.C. 1150 WBRI Indianapolis, Ind. 15011 WCL(i Morgantown, W.Va. 13 00 WDCJ Arlington. Fla. 220 WBAL Baltimore. Md. 111110 WBRJ Marietta, 0. 910 WCLI Corning. N.Y. 14 50 WDCR Hanover. N.H. 340 WBAM Montgomery. Ala. 740 WBRK Pittsfield. Mass. 1340 WCLO Janesville. Wis. 12 30 WDOT Greenville. Miss. 900 WBAP Fort Worth, Tex. 570 WBRL Bertin, N.H. 1400 WCLR Crystal Lake. III. 8 50 WODY Gloucester, Va, 420 & 820 WB11M Marion. N.C. 1250 WCLS Columbus. Ga. 15 80 WDEA Ellsworth, Me. 970 WBAR Bartow, Fla. 1460 WBRN Rig Rapids. Mich. 1460 WCLT Newark. Ohio 14 30 WDEC. Americus. Ga. 290 WBAT Marion. Ind. 1400 WBRT Bardstown, Ky. 1320 WCLU Covington, Ky. 13 20 W D E E Hamden, Conn. 220 WBAW Barnwell, S.C. 740 WBRO Waynesboro, Ga. 1310 WCLW Mansfield. Ohio 15 70 WDEF Chattanooga. Tenn. 370 WBAX Wilkes- Barre, Pa. 1240 WBRV Boonville. N.Y. 900 WCMA Corinth. Miss. 12 30 WDEH Sweetwater, Tenn. 800 WBAY Green Bay, Wis. 1360 WBRW Brewster. N.Y. 1510 WCMB Harrisburg, Pa, 14 60 WDEL Wilmington. Del. 150 WBAZ Kingston. N.Y. 1550 WBRX Berwick. Pa. 1280 WCAIC Wildwood, N.J. 12 30 WDEV Waterbury, Vt. 550 WBBA Pittsfield. III. 1580 WIRY Waterbury, Conn. 1590 WCME Brunswick, Maine 9 00 WDEW Westfield. Mass. 570 WBBB Burlington. N.C. 920 WBSA Boaz, Ala. 1300 WCMI Ashland. KY. 13 401 WDGL Duudlasville, Ga. 520

JUNE -JULY, 1966 101 WMTE C.L. Location Kc. C.L. Location Kc, C.L. Location Kc. WEIC Charleston. Ill. 1270 WFGW Black Mountains. WGKV Charleston, W. Va. 1490 WEIF Moundsville, W. Va. 1370 N.C. 1010 WGL Fort Wayne, Ind, 1250 WEIN Fitchburg, Mass. 1280 WFHG Bristol, Va. WGLB Port Wash.. Wis. 1560 [277,71@ WEIR Weirton. W.Va. 1430 W FH K Pell City, Ala. 1430 WGLC Mendota, III. 1090 WEIS Center, Ala, 990 WFHR Wis. Rapids, Wis. 1920 WGLI Babylon. N.Y. 1290 W EJ L Scranton, Pa. 630 WFIA Louisville, Ky. 900 WGMA Hollywood, Fla. 1320 WEKR Fayetteville. Tenn. 1240 WFIF Milford. Conn. 1500 WGML Hinesville, Ga. 990 ao@ WEKY Richmond, Ky. 1340 WFIG Sumter. S.C. 1290 WGMM Millington, Tenn. 1380 WEICZ Monroe. Wis. 1260 WFIL Philadelphia, Pa. 560 WGMS Washington, D.C. 570 WELB Elba. Ala, 1350 W FIN Findlay, Ohio 1330 WGN Chicago, Ill. 720 C.L. Location K C. l' /ELL' Welch, W.Va. 1150 WEIS Fountain Inn. S.C. 1600 WGNC Gastonia, N.C. 1450 WELD Fisher, W.Va. 690 WFIV Kissimmee. Fla. 1080 WGNE Panama City WDGY Minneapolis, Minn. 13 WELE S. Daytona, Fla. 1590 WFIW Fairfield, Ill. 1390 Beach. Fla. 1480 WDIA Memphis, Tenn. 07 W ELI New Haven. Conn. 960 WFIX Huntsville, Ala. 1450 WGNI Wilmington. N.C. 1450 WDIC Clincher), Va. 43 W EL K Charlottesville, Va. 1010 WFKN Franklin, Ky. 1220 WGNP Indian Rocks Beach. WDIG Dothan. Ala. 4 11 WELM Elmira. N.Y. 1410 WFKY Frankfort, Ky. 1490 Fla. 1520 WDIX Orangeburg. S.C. 1 WELL) Tupelo, Miss. 580 WFLA Tampa. Fla. 970 WGNS Murfreesboro, Tenn. 1450 WDJS Mt. Olive. N.C. 4` l' /ELP Lasley. S.C. 1960 WFLB Fayetteville. N.C. 1490 WGNU Granite City. Ill. 920 31 WDKD Kingstree. S. C. WELR Roanoke. Ala. 13611 WFLI Lookout Mtn., Tenn. 1070 WGNY Newburgh, N.Y. 1220 WOKN Dickson. Tenn. O W ELS Kinston. N.C. 1010 WFLN Philadelphia. Pa. 900 WGOE Richmond. Va. 1590 WDLA Walton, N.Y. 27 O WELV Ellenville. N. Y. 1370 W F LO Farmville, Va. 870 WGOG Walhalla, S. C. 1000 WDLB Marshfield. Wis. 4 50 WELW Willoughby. O. 1330 WEIR Dundee. N.Y. 1570 WGOH Grayson. Ky, 1370 WDLC Port Jervis, N.Y. 49 O WELY Elv, Minn. 1450 WFLS Fredericksburg. Va. 1950 WGOK Mobile. Ala. 900 WDLR Delaware, Ohio 5 50 WELZ Belzoni. Miss. 1460 WF LW Monticello, Ky. 1300 WGOL Goldsboro. N.C. 1900 WDLM E. Moline. Ill. 9 WEND Erwin. Tenn. 1420 WFMC Goldsboro, N.C. 730 WGON Munising, Mich. 1400 W DLP Panama City. Fla. 59 O WEMD Easton. Md. 1460 WFMD Frederick, Md. 930 WG00 Georgetown, S. C. 1470 WDLT Indianola. Miss. 138 O WEMJ Laconia. N.H. 1490 WFMH Cullman, Ala. 1460 WGOV Valdosta. Ga. 950 WOMG Douglas. Ga. 86 WEMP Milwaukee. Wis. 1250 WFMI Montgomery, Ala. 1500 WGPA Bethlehem. Pa. 1100 W DM) Marquette. Mich. 192 WENC Whiteville, N.C. 1220 WEMJ Youngstown. Ohio 1390 WGPC Albany. Ga. 1450 WUMS Lynchburg, Va. 132 O WEND Edensburg. Pa. 1580 WEND Fairmont. N.C. 860 WGR Buffalo, N.Y. 550 Poeomoke Md. 54 WOMV City. O WENE Endicott, N.Y. 1490 WFMW Madisonville. Ky. 730 WGRA Cairo. Ga. 790 WDNC Durham. N.C. 62 O WEND Englrwoud, Fla. 1530 WFNC Fayetteville. N.C. 1390 WGRD Grand Rapids, Mich. 1410 WDNE Elkins. W.Va. 124 O WENK Union City. Tenn. 1240 WFNL No. Augusta. S.C. 1600 WGRI Griffin. Ga. 1410 WDNG Anniston. Ala. 14 50 WENN Birmingham. Ala. 1320 WFOB Fostoria. Ohio 1430 WGRM Greenwood, Miss. 1240 WONT Dayton,Tenn. 128 O WEN0 Madison. Tenn. 1430 WFOM Marietta, Ga. 1230 WGRO Lake City, Fla. 960 WDOB Canton. Miss. 137 O WENT Gloversville, N.Y. 1340 WFOR Hattiesburg, Miss. 1400 WGRP Greenville. Pa. 940 WDOC Prestonsburg, Ky. 191 O WENY Elmira. N.Y. 1230 WFOX Milwaukee, Wis. 860 WGRV Greeneville, Tenn. 1340 WDOD Chattanooga. Tenn. 191 WENZ Highland Springs. WFOY St. Augustine, Fla. 1240 WGSA Ephrata, Pa. 1910 WDOE Dunkirk, N.Y. 141 Va. 1450 WFPA Fort Payne, Ala. 1400 WGSB Geneva. III, 1480 WDOK Cleveland. Ohio 126 Poughkeepsie, N Y. 1390 WFPG Atlantic City. N.J. 1450 WGSM Huntington, N.Y. 740 WDOL Athens, Ga. I47Ú WEOK WFPM Fort Valley. 1150 WGSR WEOL Elyria, Ohio 930 Ga. Millen, Ga. 1570 WDON Wheaton. Md. 1540 WEPG S. Pittsburgh, Tenn. 910 WFPR Hammond, La. 1400 WGST Atlanta, Ga. 920 WDOR Sturgeon flay. Wis. 910 WEPM Martinsburg. W.Va. 134111 WFRA Franklin. Pa. 1450 WGSV Guntersville, Ala. 1270 WDOS Oneonta. N.Y. I73Ú WERA Plainfield, N.J. 1590 WFRB Frostburg. Md. 560 WGSW Greenwood, S.C. 1350 WOOT Burlington. Va. WERB Garden City, Mich. 1090 WFRC Reidsville. N.C. 1600 WGTA Summerville. Ga. 950 WDOV Dover. Del. 1419 WERD Atlanta. Ga. 860 W F R L Freeport. III. 1570 WGTC Greenville, N.C. 1590 WDOW Damaging. Minh. WERE Cleveland. Ohio 1300 WFRM Coudersport, Pa. 600 WGTL Kannapolis, N.C. 870 WDON DuQuo n, Ill. 1440 Fremont. 900 WGTM WERH Hamilton. Ala. 9711 WFRO Ohio Wilson, N.C. 590 WO RC Hartford. Conn. 1360 ERI Westerly. R.I. 1210 WE RX West Frankfort. III. 13 00 WGTN Georgetown. S.C. 400 WDSC Dillon. S.C. 5!/ ERK Muncie, Ind. 990 WFSC Franklin. N.C. 10 50 I W GTO Cypress Gardens. Fla. 540 WDSG Dyersburg, Tenn. 1450 40 Boca Raton. 7 1 WGUL WERL Eagle River, Wis, 950 WFSG Fla. New Port Richey. Fla. 500 WDSK Cleveland. Miss. 1410 Van Wert. Ohio 122 O WFSO Pinellas, Fla. 5 70 WGUN Atlanta. Decatur, WDSL Moeksville, N. C. 1520 WERXWERT Wyoming. Mich. 153 0' WFSR Bath. N.Y. 13 Ga. 010 W DSM Superior, Wis 710 W ESA Charleroi, Pa. 94 O WEST Caribou. Maine 6 00 WGUS North Augusta. S.C. 380 WDSP DeFunlak Springs. WESB Bradford. Pa. 14 90, WFTC Kinston. N.C. 9 Fill WGUY Bangor, Maine 250 128 Florida O W ESC Greenville. S.C. 6 60 WFTG London. Ky. 14 00 WGVA Geneva. N.Y, 240 WDSR Lake Fla. 134 City. O WESO Southbridge. Mass, 70 W FTL Ft. Lauderdale. Fla. 1400 WGVM Greenville. Miss. 260 WDUN Gainesville. 124 Ga. O WESR Tasley, Va. 13 30 WFTM Maysville, Ky. 1240 WGWC Selma, Ala. 340 WDUX Waupaea. Wis. 80 1240 O WEST Easton, Pa, 14 00 WFTN Franklin. N.H. W G W R Asheboro, N.C. 260 Green 140 O WDUZ Bay. Wis. O WESX Salem, Mass. 123 WFTR Front Royal, Va. 1450 WGY Schenectady, N.Y. 810 WDVA Danville. 125 Va. O WESY Leland. Miss, 15 80, WFTW Ft. Walton Beach. WGYV Greenville. Ala. 380 98 WOVH Gainesville, Fla. 0 WEIB Johnson City. Tenn. 7 90l Florida 1260 WGYW Fountain City, Tenn. 430 WDVL Vineland. N.1. 1270 WETC Wendell- Zebulon. N.C. 540 WFUL Fulton, Ky. 1270 WHA Madison. Wis. 750 W D W D Dawson. Ga. 990 WEIH St. Augustine, Fla. 14 20 WFUR Grand Rapids. Mich. 1570 WHAB Baxley, Ga. 260 WOWS Champaign. III. 1400 W ETO Gadsden. Ala. 93 0 WFVA Fredericksburg, Va. 1230 WHAG Halfway. Md. 410 WOXB Chattanooga, Tenn. 1490 WETT Ocean City, Md. 15 90 WFVG Fuguay Sprgs., N.C. 1460 WHAI Greenfield, Mass. 240 WDXE Lawrenceburg. Tenn. 1370 WETU Wetumuka. Ala. 12 50 W F W L Camden, Tenn. 1220 WHAK Rogers City, Mich. 960 WOXI Jackson, Tenn. 1910 WETZ New Martinsville, WFYC Alma, Mich, 1280 WHAL Shelbyville, Tenn. 400 WDXL Lexington. Tenn. 1490 West Virginia 13 30 WGAA Cedartown, Ga. 1340 WHAM Rochester. N.Y. 181 WOXN Clarksville. Tenn, 540 WEUC Ponce, P.R. 142 g WGAC Augusta, Ga. 580 990 Paducah. WHAN Haines City. Fla. WOXR Ky. 1560 WEUP Huntsville. Ala. 16 00 WCAD Gadsden. Ala, 1350 WHAP Hopewell, Va. 340 WOXY Sumter. S.C. 1240 WEVA Emporia, Va. 8 60 WGAF Valdosta, Ga. 910 WHAR Clarksburg, W.Va. 340 WDYX 14fí0 Buford. Ga. WEVD New York, N.Y. 13 30 WGAI Elizabeth City. N.C. 560 WHAS Louisville, KY. 840 WDZ 111, Decatur. 1050 WEVE Eveleth. Minn. 13 40 WGAL Lancaster, Pa. 1490 WHAT Philadelphia. Pa. 940 WEAB Greer, S.C. 800 WEW St. Louis. Klo. 7 70 WGAN Portland. Maine 560 1500 WHAV Haverhill. Mass. 490 WEAC Gaffney. S. C. WEWO Laurinburg, N.C. 10 80 WGAP Maryville. Tenn. 1400 WHAW Weston, W.Va. 980 College Park. Ga. 1570 WEAD W EX L Royal Oak. Mich. 13 40 WGA R Cleveland. Ohio 1220 WHAZ Troy, N.Y. 330 WEAG Alcoa. Tenn. 1470 WEXT W. Hartford. Conn. 15 50 WGAS S. Gastonia, N.C. 1420 710 Greensboro. 1510 WHB Kansas City, Mo. WEAL N. C. WEYE Sanford N.C. 12 9p WGAT Gate City. Va. 1050 WHBB Selma. Ala. 490 WEAM Arlington. Va. 1990 WEYY Talladega, Ala, 15 00 WGAU Athens. Ga. 1340 W HBC Canton. Ohio 480 WEAN Providence. R.I. 790 WEZE Boston, blass. 12 60 WGAW Gardner, Mass. 1340 Eau Wis. 790 WHBF Rock Island, Ill. 270 WEAQ Claire. WEZ$ Williamsburg, Ky. 14 40 WORD Freeport. N.Y. 1240 360 Savannah. Ga. 900 WHB(, Harrisonburg. Va. WEAS WFZQ Winfield. Ala. 19 00 WGBC Chipley. Fla, 1240 WH 330 Palm 850 BL Sheboygan. Wis. WEAT W. Beach. Fla. WEZY Cocoa. Fla. 13 50 WGBF Evansville. Ind, 1280 WHBN Harrodsburg. Ky. 420 WEAV Plattsburg, N.Y. 9fí0 W FAA Dallas, Tex. 5 70 WGBG Greensboro. N.C. 1400 1330 WHBO Tampa. Fla. 050 WEAW Evanston. III. 8 20 WGBI Scranton. Pa. 910 WHRQ Memphis, Tenn. 560 Md. 136 0 1150 WEBB Baltimore. WFAB Miami, Fla. 2 90 WGBR Goldsboro, N. C. WHBT Harriman. Tenn. 600 5 F9 710 WEBC Duluth. Minn. Farmni N.C. 2 50 WGBS Miami. Fla. Anderson. 240 12 40 WFAG WHBU Ind. WEB1 Brewton. Ala. W FAH Alliance. Ohi 9 rn WGCB Red Lion, Pa. 1440 Appleton. 230 13 90 WHBY Wis. WEBO Owego. N.Y. W FAI Fay etteville. N.C. 230 W GCD Chester. S.C. 1440 WHCC Waynesville, N.C. 400 W EBQ Harrisburg. Ile. 12 470' WICH Gre,nwich. Conn. 1490 40 WFAR Farrell Pa. W HCO Sparta, 111. 230 WEBR Buffalo. N.Y. 9 Gulfport, Miss. 1240 70 WFAS White Plains. N.Y. 230 WGCM WHCQ Spartanburg. S.C. 400 WEBY Milton. Fla. 13 30 Ala. 11 50 WFAU Augusta, Me. 340 WGEA Geneva. WHCU Ithaca. N.Y. 870 WECL Eau Claire. Wis. 10 50 WFAW Indianapolis. Ind. 15 Ft. Atkinson, Wis. 940 WGEE j0 WHDF Houghton, Mich. 400 WEDC Chicago. III. 12 W G E M Quincy. III. 14 40 WFAX Falls Church. Va. 22n Y0 WH D H Boston, Mass. 850 WEDO McKeesport, Pa. 8 10 WFBA WGET Gettysburg. Pa. 19 San Sebastian. P.R. 460 Olean. N.Y. 450 Southern Pines, N C. 9 EZ Beloit. Wis. 14 ,01 WHDL WEEB WFBC Greenville, S.C. 330 Wi; McKenzie. 440 Rocky Mount. 13 90 13 60 WHOM Tenn. WEED N.C. Fernandina Beach. WGFA Watseka. III. 750 Rensselaer, 19 00 WFBF Ga. 14 30 WHEB Portsmouth, N.H. N.Y. I WGFS Covington. WEEE Fla. 570 Rochester, N.Y. 460 14 290 WGGA Gainesville, Ga. 550 WHEC WEEF Highland Park, III. WFBG Altoona, Pa. 370 WEE1 Boston. Mass. 5 30 Gainesville. Fla, 1230 WHEE Martinsville, Va. WFBL Syracuse. N.Y. 3901 WGGG Syracuse. N.Y. 620 Va. 10 WCGH Marion. III. 1150 WHEN WEEL Fairfax. WFRM Indianapolis, Ind. 2110 Va. 270 Tenn. 14 6 0 Salamanca, N.Y. 1590 WHEO Stuart. WEEN Lafayette. WFRR Baltimore, Md. 3011 WGGO Ala. 310 WEEP Pittsburgh. Pa. IO091 Newport News. Va. 1310 WHEP Foley, WEBS Spring Lake. N. C. 4 50 WIH 430 Warrenton, Va. 70 101 WGHC Clayton. Ga. 1570 WHER Memphis. Tenn. WEER WFDF Flint. Mich. WH EW Riveria Beach. Fla. 600 WEET Richmond, Va, 13 20 WFOR Manchester, Ga. á 70 W 11M Skowegan, Maine 1150 WEEU Reading. Pa. Grd. Haven. Mich. 1370 WHEB Benton Harbor -St, WFEA Manchester. N.H. 370 WGHN Mich. 060 N.C. 13 2UI Kingston. N.Y. 920 Joseph, WEEW Washington, ÿÚIWEER Sylacauga. Ala, 340 WGHQ 290 Easton. Pa. 19 Brunswick. Ga. 14 40 WHGR Houghton L.. Mich. WEEX WFEC Harriburg. Pa. 4001 WGIG Ohio 440 WEEZ Chester. Pa. 15 Galesburg, III. 14 00 WHHH Warren 11 WGIL WHHI_ 440 WEGO Concord. N.0 WFFF Columbia. Miss. 1360, R Manchester. N.H. 6 In Holly Hill. S.C. WGI Miss. 410 WEGP Presque Isle, Maine 13 40 WFFG Marathon. Fla. 300 WGIV Charlotte, N.C. 1 600 WHHT Lucedale, 400 WEHN Elmira Heights. WFGM Fitchburg, Mass. 960 WGKA Atlanta. Ga. I 600 WHHV Hillsville, Va. Horseheads, N. Y. 15 901 WFGN Gaffney. S.C. 570 W G KR Perry. Fla. 310 WH HY Montgomery. Ala. 440

102 RADIO -TV EXPERIMENTER C.L. Location Kc. C.L. Location Ka. C.L. Location /Cc. C.L. Location Ke. WHIE Griffin, Ga. 320 WI KY Evansville, Ind. 820 WJC0 Jackson. Mich 1510 WKEI Kewanee, Ill. 1450 W H I H Portsmouth. Va. 400 WIL St. Louis, Mo. 1430 WJCW Johnson City, Tenn. 910 W KEN Dover. Del. 1000 W MIL Medford. Mass. 430 WILA Danville. Va. 1580 WJDA Quincy. Mass. 1300 WKER Pompton Lakes. N.J. 1500 WHIM Providence, R.I. 110 WILD Boston. Mass. 1090 WIOB Thomasville, Ala. 630 WKEU Griffin, Ga. 1450 WHIN Gallatin. Tenn. OIU WILE Cambridge, Ohio 1270 WJDX Jackson, Miss. 620 WKEY Covington. Va. 1340 WHIO Dayton. Ohio 290 WILT Willimantic, Conn. 1400 W1DY Salisbury. Md. 1470 WKFD Wickford, R.I. 1370 WHIP Mooresville. N.C. 350 WILK Wtlkcs. Barre, Pa. 980 WJEF Grand Rapids. Mich. 1230 WKFE Valico. P.R. 1550 WHIR Danville. Ky. 230 WILL Urbana. III. 580 WJEH Gallipulis, Ohio 9'(O WKFR Battle Creek. Mich. 1400 WHIS Bluefield. W.Va. 440 WI LM Wilmington, Del. 1450 WJEJ Hagerstown, Md. 1240 WKGN Knoxville, Tenn. 1340 WHIT New Bern. N.C. 450 W I LO Frankfort. Ind. 1570 WJEM Valdosta. Ga. 1150 WKHM Jackson. Mich. 970 WHIY Orlando, Fla. 270 W ILS Lansing, Mich. 1320 WJER Dover, Ohio 1450 WKIC Hazard. KY. 1390 WHIZ Zanesville. Ohio 240 W I LZ St. Petersburg Beach. W1 ES Johnston. S.C. 1570 WK ID Urbana. III. 1580 WHJB Greensburg. Pa. 620 Florida 1590 WJET Erie. Pa. (4110 WKIG Glenville, Ga. 1580 WHIC Matawan, W.Va. 360 WI MA Lima. Ohio 1150 WJFC Jefferson CItY. Tenn. 1480 W K I K Leonardtown, Md. 1370 W H K Cleveland. Ohio 420 WIMO Winder, Ga. 1300 WJHO Opelika, Ala. 1400 WI( IN Kingsport. Tenn. 1320 WHKP Hendersonville. N.C. 450 WIMS Michigan City, Ind. 1420 WJ1C Salem, N. J. 1510 WKIP Poughkeepsie. N.Y. 1450 WHKP Hickory. N.C. 290 WINA Charlottesville. Va. 1400 WI 1 G Tullahoma, Tenn. 740 W KIS Orlando, Fla. 740 WHLB Virginia. Minn. 408 WINC Winchester, Va. 1400 WJIL Jacksonville, III. 1550 WK I X Raleigh. N.C. 850 WHLD Niagara Falls, N.Y. 270 WIND Chicago. III. 560 WJIM Lansing. Mich. 1240 W KIZ Key West, Fla. 500 WHLF South Boston, Va. 400 WINE Brookfield, Conn. 940 W1JC Commerce, Ga. 1270 WKJB Mayaguez, P.R. 710 WHLI Hempstead. N.Y. 100 W IN F Manchester. Conn. 1230 WJJD Chicago, Ill. 1160 WKJG Fort Wayne, Ind. 380 WHLL Wheeling. W.Va. 600 WING Dayton. Ohio 1410 W111 Christiansburg, Va. 1200 W KlK Granite Falls, N. C. 580 WHLM Bloomsburg. Pa. 550 WINC Murphysboro, Ill. 1420 WJJL Niagara Falls, N.Y. 1440 WKJR Muskegon. Mich. 520 WHLN Harlan. Ky. 410 WINK Fort Myers, Fla. 1240 W11M Lewisburg, Tenn. 1490 WKKD Aurora, Ill. 580 WHLO Akron. Ohio 640 WINN Louisville. Ky. 1240 WJJZ Mount Holly. N.J. 1460 WKKO Cocoa, Fla. 860 WH LP Centerville. Tenn. 570 WINO Tampa. Fla. 1010 WILD Detroit. Mich. 1400 WKKS Vanceburg, Ky. 570 WHLS Port Huron, Mich. a50 WINK Binghamton, N.Y. 660 WILD Homewood, Ala. 1400 WK LA Ludington, Mich. 450 WHLT Huntington, Ind. 300 WINS New York. N.Y. 1010 WJLE Smithville. Tenn. 1480 WKLC St. Albans, W.Va. 300 W H M A Anniston. Ala. 390 WINT Winter Haven. Fla. 1960 Wilk Asbury Park. N. J. WKLF Clanton. Ala. 980 WHMC Gaithersburg, Md. 150 WI NU Highland Park. Ill. 1510 WJLS Beckley, W.Va. 560 WKLK Cloquet. Minn. 230 ,WHMI Howell. Mich. 350 W I N W Canton. O. 15211 WJMA Orange, Va. 1340 WKLM Wilmington, N.C. 980 WHMI' Northampton, Mass. 4011 WINX Rockville, Md. 1600 WJMB Brookhaven. Miss. 1340 WKLO Louisville, KY. 080 WHN New York, N.Y. 050 WINY Putnam, Conn. 1350 WJMC Rice Lake, Wis. 1240 WKLP Keyser. W. Va. 390 WHNC Henderson, N.C. 890 WINZ Miaou, Fla. 940 WJMO Cleveland Hats., Ohio 1490 W KLV Blackstone, Va. 440 WHNY McComb, Miss. 250 WINU Highland. Ill. 1510 W1MS Ironwood. Mich. 690 WKLY Hartwell. Ga. 980 WHO Des Moines. Iowa 040 Wlry W Canton, Ohio 1520 WJMW Athens. Ala. 730 WK LZ Kalamazoo. Mich. 470 WHOA San Juan, P.R. 670 WIOD Miami, Fla. 610 WJMX Florence. S.C. 970 WK MC Roaring Specs.. Pa. 370 WHOC Philadelphia, Miss. 490 W101 New Boston. Ohio 1010 WJNC Jacksonville. N.C. 240 W K M F Flint. Mich. 470 WHOD Jackson. Ala. 290 WIOK Normal, Ill. 1440 WJNO W. Palm Beach. Fla 230 W KMI Kalamazoo. Mich. 960 WHOF Canton. Ohio 060 WION Ionia. Mich. 1430 WJOB Hammond, Ind. 230 W KM K Blountstown, Fla. 370 WHUK Lancaster. Ohio 320 W100 Carlisle. Pa. 1000 W10E Port Joe, Fla. 1180 W KhMT Kings Mtn., N.C. 220 WHOL Allentown, Pa. 000 WIOS Tawas City. Mich. 1400 W101 Florence, Ala. 340 WKNE Keene, N.H. 290 WHOM New York. N.V. 480 WIOU Kokomo, Ind. 1350 WWI Joliet. Ill. 340 WKNR Dearborn. Mich. 310 WHON Centerville, Ind. 930 WIP Philadelphia. Pa. 610 WJON St. Cloud. Minn. 240 WKNT Kent, Ohio 520 W H 00 Orlando. F la. 990 WIPC Lake Wales. Fla. 1280 WJOR South Haven, Mich. 940 WKNX Saginaw, Mich. 210 WHOP Hopkinsville. Ky. 1230 WIPR San Juan, P.R. 940 WJUT Lake City. S.C. 260 WK NY Kingston. N.Y. 490 WH(IS Decatur, Ala. 800 WIPS Ticonderoga, N.Y. 1250 WJOY Burlington, Vt. 230 W1(04 Hopkinsvitle. Ky. 480 WHOT Campbell, Ohio 1330 WI RA Ft. Pierce, Fla. 1400 WJPA Washington. Pa. 450 WKOK Sunbury. Pa. 070 WHUU Moulton, Maine 1340 WI KB Enterprise. Ala. 600 WJPD Ishpeming, Mich. 240 WKOP Binghamton. N.Y. 360 WHUW Clinton, III. 1520 WIRC Hickory, N.C. 630 WJPF Herrin. Ill. 340 W KOV Wellston, Ohio 330 WH P Harrisburg, Pa. 580 WIRD Lake Placid. N.Y. 920 WJPG Green Bay. Wis. 440 WKOW Madison. Wis. 070 WHPB Belton. S.C. 1390 WIRE Indianapolis. Ind. 1430 WJPR Greenville, Miss. 330 WKOX Framingham, Mass. 190 WHI'E High Point. N.C. 1070 WINJ Humboldt, Tenn. 740 WJPS Evansville, Ind. 330 WKOY Bluefield. W.Va. 240 W H PL Winchester, Va. 610 WIRK W. Palm Beach. Fla. 1290 WJPW Rocklord. Mich. BIO WKOZ Kosciusko. Miss. 350 WHRN Herendon, Va. 1440 W IRL Peoria. 111. 1290 W JUS Jackson. Miss. 400 WKPA New Kensington, Pa. 150 WHHT Hartselle. Ala. 860 W IRO Ironton, Ohio 1230 WJR Detroit. Mich. 760 WK PO Prentiss. Miss. 510 WHRV Ann Arbor. Mich. 1600 WIRY Irvine, Ky. 1550 WJRC Joliet, Ill. 510 WKPR Kalamazoo, Mich. 420 WHRY Elizabethtown. Pa. 1600 WIRY Plattsburg. N.Y. 1340 WJRD Tuscaloosa, Ala. I50 WKPT Kingsport, Tenn. 400 WHSC Hartsville. S.C. 1450 W IS Columbia, S.C. 500 WIRI Lenoir. N.C. 340 WKOV Sullivan. Ind. 550 WHSL Wilmington, N.C. 1490 WISA Isabella, P.R. 1390 W J R L Roektord. Ill. 150 WK RA Holly Springs. Miss. 110 WHSM Hayward, Wis. 910 WISE Asheville. N.C. 1910 WJRM Troy. N.C. 390 WK RC Cincinnati. Ohio 550 WHSY Hattiesburg. Miss. 1230 W ISK Americus, Ga. 1390 WJRZ Newark, N.J. 970 WKRG Mobile, Ala. 710 WHTC Holland, Mich. 1450 WISL Shamokin, Pa. 14 öU WJSB Crestview. Fla. 050 WI

JUNE- JULY, 1966 103 W. C.L. Location le. C.L. Location Ka. C.L. Location le. WLVA Lynchburg. Va. 590 WMPC Lapeer. Mich. 1230 WNRK Newark, Del. 1260 WLUX Baton Rouge, La 1550 WMPL Hancock, Mich, 920 WNRV Narrows, Va, 990 WLW Cincinnati. Ohio 700 WMPM Smithfield, N.C. 1270 WNSL Laurel. Miss, 1260 [274,170 WLWO (V.O.A.). WMPO MiddleportPomeroy, WNSM ValparaisoNleeville, Marathon. Fla. 1040 Ohio 1390 Florida 1340 WLWO (V.O.A.) WMPP Chicago Heights, Ill. 1470 WNTN Newton, Mass, 1550 Marathon, Fla. 1180 WMPS Memphis, Tenn. 680 WNTT Tazewell, Tenn. 1250 11,o@ WLYB Albany, Ga 1250 WMPT So. Williamsport, Pa. 1450 WNUE Ft. Walton Bch., Fla. 1400 WLYC Williamsport. Pa. 1050 WMQM Memphis, Tenn. 1480 WNUS Chicago. III, 1390 WLYN Lynn, Mass. 1360 WMRB Greenville, S.C. 1490 WNUW New Albany, Ind. 1570 C.L. Location Kc. WLYO New Orleans, La. 940 WMRC Milford, Mass. 1490 WNUZ Talladega. Ala 1230 WLYV Ft. Wayne. Ind. 1450 WMRE Monroe, Ge. 1490 WNVA Norton. Va. 1350 WLAR Athens, Tenn. 14 50 WMAB Munising. 1400 WNVL Nicholasville, WLAS Mich. WMRF Lewistown. Pa. 1490 Ky. 1250 Jacksonville. N.C. 9 10 WMAC Netter, Ga. 1360 WMRI Marion, Ind. 860 W N V Y Pensacola, Fla. 1230 W LAT Conway. S.C. 13 30 WMAD Madison, Wis. 1550 WMRN Marion, Ohio 1490 W N W I Northwestern. Ind, 1060 WLAU Laurel. Miss, 160 WMAF Madison. Fla. 1230 WMRO Aurora, III. 1280 WNXT Portsmouth, Ohio 1200 WLAV Grand Rapids. Mich. 13 40 WMAG Forest, Miss. 860 WMRP Flint. Mich. 1570 WNYC New York, N.Y. 890 WLAW Lawrenceville, Ga. 13 60 WMAJ State College. Pa. 1450 WMRR Marshall, Mich. 1540 WNYR Rochester. N.Y. 689 W LAY Muscle Shoals. Ala. 14 50 WMAK Nashville. Tenn. 1300 WMSA Massena, N.Y. 1340 WOAH Miami, Fla. 1220 WIBA Gainesville. Ga. 15 60 WMAL Washington, D.C. 630 WMSG Oakland, Md. 1050 WOAI San Antonio, Tex. 1200 WLBB Carrollton, Ga. 110 0 WMAM Marinette, Wis. 570 W MSJ SYlva, N.C. 1480 WOAP Owosso. Mich. 1080 WLBC Muncie, Ind. 134 0 WMAN Mansfield. Ohio 1400 WMSK Morganfield, Ky. 1550 WOAY Oak Hill. W.Va. 860 WLBE Leesburg. Fla. 790 WMAP Monroe, N.C. 1060 WMSL Decatur, Ala. 1400 WOBS Jacksonville, Fla. 1360 WLBG Laurens. S.C. 860 WMAQ Chicago. III. 670 WMSR Manchester, Tenn. 1320 WOBT Rhinelander, Wis. 1240 WLBH Mattoon. III. 1170 WMAS Springfield, Masa. 1450 WMST Mt. Sterling, Ky. 1150 WOC Davenport, Iowa 1420 WLBI Denham Springs, La. 1220 WMAT Lansing, Mich. 1010 WMT Cedar Rapids, lows 600 WOCB W. Yarmouth. Mass. 1240 WLBJ Bowling Green, Ky. 1410 WMAX Grand Rapids, MIA. 1480 WMTA Central City. Ky. 1380 WOCH North Vernon, Ind. 1460 WLBK DeKalb. III. 1360 WMAY Springfield, III. 970 WMTC Vancleve. Ky. 730 WOCK Okeechobee, Fla. 1570 WLBL Auburndale, Wis. 930 WMAZ Macon. Ge. 940 WMTD Hinton. W. Va. 1380 WODI Brookneal, Va. 1230 WLBN Lebanon, Ky. 1590 WMBA Ambridge, Pa, 1460 WMTE Manistee, Mich, 1340 WODY Bassett, Va 900 WLBR Lebanon, Pa. 1280 WMBC Macon. Miss. 1400 WMTL Leitchfield, Ky. 15840 WOGA Sylvester, Ga. 1540 WLBZ Bangor, Maine 620 WMBD Peoria. III. 1470 WMTM Moultrie. Ga. 1300 WOHI E. Liverpool, Ohio 1490 WLCB Moulton, Ala. 1530 WMBG Richmond. 1380 WMTN Morristown, 1300 WLCK Va. Tenn. WOHO Toledo. Ohio 1470 Scottsville. Ky. 1250 WMBH Joplin. Mo. 1450 WMTR Morristown, N.J. 1250 WOHP Bellefontaine, Ohio 1390 WLCM Lancaster. S.C. 1360 WMBI Chicago. III. 1110 WMTS Murfreesboro, Tenn. 810 WOHS Shelby, N.C. 730 WLCN Laurensburg, N.C. 1800 WMBL Morehead City. N.C. 740 WMUS Muskegon, Mich. 1090 WOl Ames, Iowa 640 WLCO Eustis, Fla. 1240 WMBM Miami Beach, Fla 1490 WMUU Greenville, S.C. 1260 WOIB Saline. Mich. 1299 WLCS Baton Rouge, La. 910 WMBN Petoskey, Mich. 1340 WMVA Martinsville, Va. 1450 WOIC Columbia, S.C. 1520 WLCX LaCrosse. Wis. 1490 WMBO Auburn, N.Y. 1340 WMVB Millville, N.J. 1440 WUKA Douglas, Ga. 1510 WLCY St. Petersburg, Fla. 1380 WMBR Jacksonville. Fla 1460 WMVG Milledgeville, Ga. 1450 WOKB Winter Garden. Fla 1600 WLDB Atlantic City, N.J. 1490 WMBS Uniontown, Pa. 590 WMVO Mt. Vernon. Ohio 1300 WOKE Charleston, S.C. 1340 W LDS Jacksonville, III. 1180 W M BT Shenandoah, Pa. 1530 WMVR Sidney. Ohio 1080 WOKK Meridian. Miss. 1450 WLDY Ladysmith, Wis. 1340 WMC Memphis, Tenn. 790 WMWM Wilmington, O. 1090 WOKO Albany, N.Y. 1400 WLEA Hornell. N.Y. 1480 WMCA New York. N.Y. 570 WMYB Myrtle Beach. S.C. 1450 WOKS Columbus, Ga. 1340 WLEC Sandusky. Ohio 1450 WMCH Church Hill. Tenn. 1260 WMYN Mayodan, N.C. 1420 WOKW Brockton, Mass. 1410 WLEE Richmond, Va. 1480 WMCK McKeesport. Pa, 1360 WMYR Ft. Myers. FIa. 1410 WOKY Milwaukee, Wis. 920 WLEF Greenwood. Miss. 1540 WMCP Columbia. Tenn. 1280 WNAB Bridgeport, Conn. 1450 WOKZ Alton. III. 1570 WLEM Emporium, Pa. 1240 WMCR Oneida. N.Y. 1600 W NAC Boston, Mass. 680 WOL Washington. D.C. 1450 WLES Lawrenceville. Va. 580 WMCW Harvard. Ill. 1600 WNAD Norman, Okla. 640 WOLD Marion. Va. 1330 WLET Toccoa. Ga. 1420 WMOC Hazlehurst, Miss. 1220 WNAE Warren. Pa. 1310 WOLF Syracuse. N.Y. 1490 WLEW Bad Axe. MIeh. 1340 WMDD Fajardo, P.R. 1480 WNAG Grenada, Miss. 1100 WOLS Florence, S. C. 1230 WLEY Cayey. P.R. 1080 WMDN Midland, Mich. 1490 WNAH Nashville, Tenn. 1360 W O M 1 Owensboro, KY. 1490 WLFA Lafayette. Ga. 1590 WMEG Eau Gallia. FIa 920 WNAK Nanticoke, Pa, 730 WOMN Decatur, Ga, 1310 WLFH Little Falls. N.Y. 1230 WMEK Chase City. Va 980 WNAM Neenah. Wis. 1280 WOMP Bellaire. Ohio 1290 WLIB New York. N.Y. 1190 WMEL Pensacola. Fla. 610 W NA R Norristown. Pa. 1110 WOh1T Manitowoc. Wis. 1240 WLIJ Shelbyville,Tenn. 1580 W M E N Tallahassee, Fla 1330 WNAT Natchez, Miss. 1450 WONA Winona. Miss. 1570 W LI K Newport. Tenn. 1270 WMEV Marion, Va. 1010 WNAU New Albany, Miss. 1470 WOND Pleasantville, N.J. 1400 W LI L Lenoir City. Tenn. 730 WMEX Boston, Mass. 1510 WNAV Annapolis, Md. 1430 WORE Dayton. Ohio 980 WLIP Kenosha, Wis. 1050 WMFC Monroeville. Ala. 1360 WNAX Yankton. S.Dak. 570 WONN Lakeland, Fla. 12300 WLIQ Mobile, Ala. 1360 WMFD Wilmington, N.C. 630 WNBC New York, N.Y. 660 WONS Tallahassee, Fla. 1410 WLIS Old Saybrook. Conn. 1420 WMFG Hibbing. Minn. 1240 WNBF Binghamton. N.Y. 1290 WONW Defiance, Ohio 1281) WLIV Livingston, Tenn. 920 WMF1 Daytona Beach, FIa 1450 WNBH New Bedford, Mass. 1340 WOOD Grand Rapids. Mich. 1300 WLIZ Lake Worth. FIa. 1380 WMFR High Point, N.C. 1230 WNBP Newburyport, Mass. 1470 WOOF Dothan. Ala. 560 WLKM Three Rivers, Mleh. 1510 WMGA Moultrie. Ga. 1400 WNBS Murray, Ky. 1940 WOOK Washington, D.C. 1340 WLKN Lincoln. Me. 1450 WMGR Bainbridge. Ga. 930 WNBT Wellsboro, Pa. 1490 W000 Deland, Fla. 1310 WLKS W. Liberty. Ky. 1450 WMGS Bowling Green. Ohio 730 WNBZ Saranac Lake. N.Y. 1210 WOOW Greenville, N.C. 1340 WLKW Providence, R.I. 990 WMGW Meadville, Pa. 1490 WNCA Siler City. N.C. 1570 WOPA Oak Park. Ill. 1400 WLLE Raleigh, N.C. 570 WMGY Montgomery. Ala. 800 WNCC Barnesboro, Pa. 950 WOPI Bristol, Tenn. 1490 WLLH Lowell. Mass. 1400 WMIA Arecibo. P. R. 1070 WNCG N. Charleston, S.C. 910 WOR New York. N.Y. 710 WLLL Lynehburg. Va. 930 WMID Atlantic City, N.J. 1340 WNCO Ashland, Ohio 1340 WORA Mayaguez, P.R. 760 WLLY Wilson, N.C. 1350 WMIE Miami. Fla. 1140 WNCT Greenville. N. C. 1590 WORC Worcester, Mass. 1310 WLMD Laurel. Md. 900 WMIK Middlesboro. Ky. 560 WNDB Daytona Beach. FIa. 1150 WORD Spartanburg, S.C. 910 WLNC Laurinbure. N.C. 1300 WMIL Milwaukee, Wis. 1290 WNDR Syracuse. N.Y. 1260 WORG Orangeburg, S.C. 1580 WLMJ Jackson. Ohio 1280 WMIN Mpls. -St. Paul. Minn. 1400 WNOU South Bend. Ind. 1490 WORK York. Pa. 1350 WLNA Peekskill. N.Y. 1420 WMIQ Iron Mountain. Mich. 1450 WNEB Worcester, Mass. 1230 WORL Boston. Mass. 950 WLNG Sag Harbor, N.Y. 1600 WMIR Lake Geneva, Wis. 1550 WNEG Tama, Ga. 630 WORM Savannah. Tenn. 1010 WLNH Laconia. N.H. 1350 WMIS Natchez, Miss. 1240 WN EL Caguas. P. R. 1430 WORT New Smyrna Beach. WLOA Braddock. Pa. 1550 WMIX Mt. Vernon. III. 940 WNER Live Oak. FIa, 1250 Florida 1550 WLOB Portland. Maine 1310 WMJM Cordele. Ga. 1490 WNES Central City, Ky. 1050 WORX Madison. Ind. 1270 WLOC Munfordville, Ky. 1150 WMKR Millinocket. Me. 1240 WNEW New York, N.Y. 1130 WOSC Fulton. N.Y. 1300 WLOD Pompano Beach, FIa. 980 W M KT S. St. Paul, Minn. 1370 WNEX Macon. Ga. 1400 WOSH Oshkosh. Wis. 1490 WLOE Leaksville, N.C. 1490 WMLF Pineville, Ky. 1230 WNGA Nashville, Ga. 1600 WOSU Columbus. Ohio 820 WLOF Orlando. Fla. 950 W M LO Beverly, Mass, 1570 WNGO Mayfield. Ky. 1320 WOTR Corry. Pa. 1370 WLOG Logan, W.Va. 1230 WMLP Milton, Pa. 1380 WNHC New Haven. Conn. 1340 WOTT Watertown, N.Y. 1410 WLOH Princeton. W.Va. 1490 W M LS Sylacauga. Ala. 1290 WNIA Cheektowaga, N.Y. 12311 WOTW Nashua. N.H. 900 WLOI LaPorte, Ind. 1540 WMLT Dublin, Ga. 1330 WNIK Arecibo. P.R. 1230 WOUB Athens, Ohio 1340 WLOK Memphis. Tenn. 1340 WMMB Melbourne. FIa. 1240 WNIL Niles, Mich. 1290, WOVE Welch, W.Va. 1341) WLOL Minneapolis. Minn. 1330 WMMH Marshall. N.C. 1460 WNIO Niles. Ohio I540I WOW Omaha, Nebr. 590 WLON Lincolntoe. N.C. 1050 WMMJ Lancaster. N.Y. 1300 WNIR New Albany, Ind, 12911 W O W L Florence. Ala. 1240 WLOP Jesup. Ga. 1370 WMMM Westport, Conn. 1260 WNJH Hammonton. N.J. t5911 WOWO Ft. Wayne. Ind. 1190 WLOR Thomasville. Ga. 730 WMMN Fairmont, W.Va. 920 WNJR Newark. N.J. 1430 W O W W Naugatuck, Conn. 860 WLOS Asheville. N.C. 1380 W M M W Meriden. Conn. 1470 WNKY Neon. Ky. 1481 WOWY Clewiston, Fla. 500d WLOU Louisville, Ky. 1350 WMNA Gretna. Va. 730 WNLC New London, Conn, 1510 WOXF Oxford. N.C. 1340 WLOV Washington. Ga. 1370 WMNB No. Adams, Mass. 1230 WNLK Norwalk. Conn. 1351 WOZK Ozark. Ala. 900 WLOW Aiken. S.C. 1300 WMNC Morganton, N.C. 1430 WNMP Evanston, III. 1590 WPAB Ponce, P.R. 550 WLOX Biloxi. Miss, 1490 WMNE Menomonie. Wis. 1360 WNNC Newton, N.C. 12300 WPAC Patchogue, N.Y. 1580 WLPM Suffolk, Va. 1460 WMNI Columbus. Ohio 920 WNNJ Newton, N.J. 1360 W PAD Paducah, KY. 1450 WLPO LaSalle. Ill. 1220 WMNS Olean. N.Y. 1960 WNNR New Orleans, La. 490 WPAG Ann Arbor, Mich. 1050 WLPS Lehighton, Pa 1150 WMNT Manati, P.R. 1500 WNNT Warsaw, Va. 690 WPAL Charleston. S.C. 730 WLRC Whitehall. Mich. 1490 WMNZ Montezuma, Ga. 1050 WNOE New Orleans. La. 1000 WPAM Pottsville. Pa. 1450 WLS Chicago. III. 890 WMOA Marietta. Ohio 1490 WNOG Naples, Fla. 12711 WPAQ Mount Airy, N.C. 740 WLSB Copper Hill, Tenn. 1400 WMOC Chattanooga. Tenn. 1450 WNOH Raleigh, N. C. 1551 WPAR Parkersburg. W.Va. 1450 WLSC Loris. S.C. 1570 WMOG Brunswick. Ga. 1490 WNOK Columbia. S.C. 1230 WPAT Paterson. N.J. 930 WLSD Big Stone Gap. Va. 1220 WMOH Hamilton, Ohio 1450 WN00 Chattanooga, Tenn. 1260 WPAW E. Syracuse. N.Y. 1540 WLSE Wallace. N.C. 1400 WMOK Metropolis, III. 920 WNOP No. Platte. Neb. 1410 WPAX Thomasville. Ga. 1240 WLSH Lansford, Pa. 1410 WMON Montgomery. W.Va. 1340 WNOR Norfolk, Va. 1230 WPAY Portsmouth, Ohio 1400 WLSI Pikeville, Ky. 900 WM00 Mobile. Ala. 1550 WNOS High Point, N.C. 1590 WPAZ Pottstown, Pa. 1370 WLSM Louisville. Miss. 1270 WMOP Ocala. Fla. 900 WNOW York. Pa. 12511 WPBC Richfield. Minn. 980 WLST Escanaba, Mich. 600 WMOR Morehead, Ky. 1330 WNOX Knoxville. Tenn. 990 WPCC Clinton. S.C. 1400 WLSV Wellsville. N.Y. 790 WMOU Berlin, N.H. 1230 WNPS New Orleans, La. 1450. WPCF Panama City. Fla. 1450 WLTC Gastonia. N.C. 1370 WMOV Ravenswood, W.Va. 1360 WNPT Tuscaloosa. Ala. 1260 WPCO Mt. Vernon, Ind. 1590 WLTH Gary. Ind. 1370 WMOX Meridian, Miss. 1240 WNPV Lansdale, Pa. 1440 WPDE Paris. Ky. 1440 WLTN Littleton. N. H. 1400 WMOZ Mobile, Ala. 960 WNRG Grundy. Va. 940 WPDF Corydon. Ind. 1550 WLUV Loves Park, III. 1520 WMPA Aberdeen. Miss. 1240 WNRI Woonsocket, R.I. 1380 WPDM Potsdam. N.Y. 1470

101 RADIO -TV EXPERIMENTER C.L. Location Kc. C.L. Location Kc. C.L. Location Kc. C.L. Location Kc. WPDQ Jacksonville. Fla. 600 WRCP Philadelphia, Pa. 1540 WSBC Chicago, Ill. 1240 WSVL Shelbyville. Ind. 1520 WPDR Portage. Wis. 1950 WRCR Maplewood, Minn. 1010 WSBR Boca Raton. Fla. 740 WSVN Valdese, N.C. 1490 WPDX Clarksburg. W.Va. 750 WRCS Aheskie, N.C. 970 WSBS Gt. Barrington. Mass. 860 WSVM Valdese, N.C. 1490 WPEG Winston -Salem. N.C. 1550 WRDB Recdsburg. Wis. 1400 WSBT South Bend. Ind. 960 WSVS Crewe. Va. 800 WPEH Louisville, Ga. 1420 WRDO Augusta. Maine 1400 WSCM Panama City Beach, WSWN Belle Glade. Fla. 900 WPEL Montrose. Pa. 1250 WRDS S. Charleston, W.Va. 1410 I lorida 1290 WSWV Pennington Gap, Va. 1570 WPEN Philadelphia. Pa. 950 W HO W Augusta, l.a. 1480 WSBP Chattahoochee, Fla, 580 WSWW Platteville, Wis. 1590 WPEO Peoria, III. 1020 WREB Holyoke, Mass. 930 WSCR Scranton, Pa. 920 W SYB Rutland, Vt. 1980 WPEP Taunton. Mass. 1570 WREC Memphis, Tenn. 600 WSDR Sterling, III. 240 WSYD Mt. Airy. N.C. 1300 WPET Greensboro. N.C. 950 WREL Lexington, Va. 1450 WSEB Sebring, Fla. 340 WSYL Sylvania. Ga. 1490 WPFB Middletown, Ohio 910 WREM Remsen, N.Y. 1480 WSEL Pontotoc, Min. 440 WSYR Syracuse, N.Y. 570 WPFP Park Falls. Wis. 1450 WREN Topeka, Kans. 1250 WSEM Donaldsonville. Ga. 500 WTAB Tabor City. N.C. 1370 WPGA Perry. Ga. 980 WREO Ashtabula, Ohio 970 WSEN Baldwinsville, N.Y. 050 WTAC Flint, Mich. 600 WPGC Bradbury tights., Md. 1580 WHEY Reidsville. N.C. 1220 WSER Elkton, Md. 550 WTAD Quincy, Ill. 930 WPGF Burgaw, N. C. 1470 WREX Grand Junction, Culo. 920 WSET Glen Falls, N.Y. 410 WTAG Worcester. Mass. 580 W PGM Danville, la. 1570 WRFC Athens. Ga. 960 WSEV Sevierville. Tenn. 930 WTAL Tallahassee. Fla. 1450 W PG W Portland. Ind. 1440 WRFD Worthington. Ohio 880 WSFB Quitman. Ga. 490 WTAN Clearwater. Fla. 1340 WPHB Philipsburg, Pa. 1260 W RF S Alexander City, Ala. 058 WSFC Somerset, Ky. 240 WTAP Parkersburg, W.Va. 1230 WPHC Waverly, Tenn. 1060 W RGA Rome, Ga. 470 WSFR Sanford. Fla, 960 WTAQ LaGrange, Ill. 1300 WPHN Liberty, Ky. 1560 WHGS Rogersville. Tenn. 370 WSJ T Thomaston. Ga. 220 WTAH Norfolk, Va. 790 WPIC Sharon. Pa. 790 WRHC Jacksonville, Fla. 400 WSGA Savannah, Ga. 400 W TA W Bryan. Tex. 1150 WPI D Piedmont. Ala. 1280 WRHI Rock Hill. S.C. 340 WSI.B Sutton, W.Va. 490 WTAX Springfield. Ill. 1240 WPIK Alexandria. Va. 730 WRIB Providence. R.I. 220 WSGC Elberton, Ga. 400 WTAY Robinson. Ill. 1570 WPIN St. Petersburg, Fla. 680 WRIC Richlands, Va. 540 WSGN Birmingham, Ala. 610 WTBC Tuscaloosa. Ala. 1230 WPIT Pittsburgh, Pa. 730 WHIG Wausau, Wis. 400 WSGO Oswego. N.Y. 440 WTBF Troy, Ala. 970 WPKE Pikeville, Ky. 240 WRIM Pahokee, Fla. 250 WSGW Saginaw, Mich. 790 WTBO Cumberland. Md. 1450 WPKO Waverly, Ohio 380 WRIN Rensselaer, Ind. 560 WSHB Raeford. N.C. 400 WTCA Plymouth, Ind. 1050 WPKY Princeton. Ky. 580 WRIP Rossvllle, Ga. 980 WSHC Collierville. Tenn. 590 WTCB Flomaton, Ala. 990 WPLA Plant City. Fla. 910 WRIS Roanoke. Va. 410 WSHF Sheffield. AIL 290 WTCH Shawano. Wis. 960 WPLB Greenville, Mich. 380 WRIT Milwaukee. Wis. 340 WSHN Fremont, Mich. 550 WTCJ Tell City, Ind. 1230 WPLK Rockmart, Ga. 220 WRIV Riverhead. N.Y. 390 WSHO New Orleans, La. 230 WTCM Traverse City, Mich. 1400 WFLM Plymouth. Mass. 390 WRIZ Coral Gables. FIa, 550 WSHP Shippenburg, Pa. 480 WTCO Campbellsville, Ky. 1450 WFLO Atlanta. Ga. 590 W RJC Mauston, Wis. 270 WSIB Beaufort. S.C. 490 WTCR Ashland, Ky. 1420 WPLY Plymouth. Wis. 420 WRJN Racine. Wis. 400 WSIC Statesville. N.C. 400 WTCS Fairmont, W.Va. 1490 WPMB Vandalia, Ill. 500 WRJS San German, P. R. 060 WSID Baltimore. Md. 010 WTCW Whitesbur0. Ky. 920 WPME Punxsutawney. Pa. 540 WRJW Picayune, Miss. 320 WSIG Mount Jackson, Va. 790 WTEL Philadelphia. Pa. 860 WPMH Portsmouth, Va. 010 WRKB Kannapolis, N.C. 460 WSIM Prichard, Ala. 270 WTGA Thomaston. Ga. 1590 WPMP Pascagoula. Miss. 580 WRKD Rockland, Maine 450 WSIP Painesville. Ky. 490 WTGR Myrtle Beach, S. C. 1520 WPNC Plymouth, N.C. 470 WRKH Rockwood. Tenn. 580 WSIR Winter Haven. Fla. 490 WTHE Mineola, N.Y. 1520 WPNF Brevard, N.C. 240 WRKL New City. N. Y. 910 WSI V Pekin, Ill. 140 WTHI Terre Haute. Ind. 1480 WPNH Plymouth, N. H. 300 WRKM Carthage. Tenn. 350 WSIX Nashville. Tenn. 980 WTHM Lapeer, Mich. 1530 WPNX Phoenix City. Ala. 460 WRKT Cocoa Beath, Fla. 900 WSJC Magee, Miss. 810 W T H N T homaston. Ga. 1500 WPON Pontiac. Mich. 460 WRLD Lanett, Ala. - WSJM St. Joseph, Mich. 1400 WTHT Hazleton, Pa. 1300 WPOP Hartford. Conn. 410 W. Point, Ga. 490 WSJR Modawaska Me. 1230 WTIC Hartford. Conn. 1080 WPOR Portland. Maine 490 WRMA Montgomery. Ala. 950 WSJS Winston-Salem. N.C. 600 WTID Newport News, Va. 1270 WPOW New York, N.Y. 930 WRMF Titusville, Fla. 050 WSJT Chesapeake. Va. 1600 WTIF Tilton. Ga. 1940 WPPA Pottsville, Pa. 360 WRMN Elgin. III. 410 WSKI Montpelier Barre, Vt. 1240 WTIG Massillon, Ohio 990 WPRA Mayaguez. P.R. 990 WRMS Beardstown, Ili. 790 WSI(P Miami, Fla. 1450 WTIK Durham. N.C. 1910 W PRC Lincoln, ill. 370 WRMT Rocky Mount, N.C. 490 WSKTS. Knoxville, Tenn. 1580 WTIL Mayaguez. P.R. 1900 WPRE Prairie Du Chien, Wis. 980 WRNB New Bern, N.C. 490 WSI(Y Asheville, N.C. 1230 WTIM Taylorville. Ill. 1410 WPRN Butler. Ala. 220 WRNC Raleigh, N.C. 240 WSLB Ogdensburg. N.Y. 1400 WTIP Charleston. W.Va. 1240 WPRO Providence, R.I. 630 WRNE Wis. Rapids. Wis. 220 WSLC Clermont, Fla. 1940 WTIQ Manistique, Mich. 1490 WPRP Ponce, P.R. 910 WRNL Richmond. Va. 910 WSLG Clermont, Fla. 1940 WTIX New Orleans. La. 690 WPRS Paris, Ill. 1440 WRNY Rome. N.Y. 350 WSLI Jackson. Miss. 930 WTJH East Point. Ga. 1260 WPRT Prestonsburg. Ky. 960 WROA Gulfport, Miss. 990 WSMA Marine City, Mich. 1590 WTJS Jackson. Tenn. 1390 WPRV Wauchula. Fla. 1600 WROB West Point. Miss. 450 WSLM Salem. Ind. 1220 WTKM Hartford, Wis. 1540 WPRW Manassas, Va. 1460 WROC Rochester, N.Y. 280 WSLR Akron, Ohio 1350 WTKO Ithaca N.Y. 1470 WPRY Perry, Fla. 1400 WROD Daytona Beach, Fla. 340 WSLS Roanoke. Va. 610 WTKY Tompkinsville, Ky. 1370 WPSL Monroeville, Pa. 1510 W RO K Rockford, Ill. 440 WSLT Ocean City- Somers WTLB Utica. N.Y. 1310 WPTF Raleigh, N.C. 680 WROL Fountain City. Tenn. 490 Pt., N. J. 1520 WTLK Taylorsvllle. N.C. 1570 WPTL Canton. N.C. 920 WROM Rome, Ga. 710 WSM Nashville. Tenn. 650 WTLN Apopka. Fla. 1520 WPTN Cookeville, Tenn. 500 WRON Ronceverte, W.Va. 400 WSMB New Orleans. La. 1350 WTLO Somerset, Ky. 1480 WPTR Albany, N.Y. 540 WROS Scottsboro, Ala. 330 WSMD La Plata, Md. 1560 WTLS Tallasee, Ala, 1300 WPTS Pittston. Pa. 540 WROV Roanoke, Va. 240 WSME Sanford. Maine 1220 WTMA Charleston, S.C. 1250 WPTW Piqua, Ohio 570 WROW Albany. N.Y. 590 WSMG Greenville, Tenn. 1450 WTMB Tomah, Wis. 1390 WPTX Lexington Pk.. Md. 920 WROX Clarksdale, Miss. 450 WSMI Litchfield. Ill. 1540 WTMC Ocala. Fla. 1290 WPUV Pulaski. Va. 580 WROY Carmi, Ill. 460 WSMN Nashua, N.H. 1590 WTMJ Milwaukee. Wis. 620 WPVA Colonial Hghts., Va. 290 WROZ Evansville. Ind. 400 WSMT Sparta. Tenn. 1050 WIMP Tampa Fla. 1150 WPVL Painesville, Ohio 400 WRPB Warner Robbins. Ga. 350 WSNE Cummings, Ga. 1410 WTMT Louisville. Ky. 620 WPXE Starke. Fla. 490 WRPL Charlotte. N.C. 540 WSNJ nr. Bridgeton. N.J. 1240 WTNC Thomasville. N.C. 790 WPXY Greenville, N. C. 550 WRPM Poplarville. Miss. 530 WSNO Barre. Vt. 1450 WIND Orangeburg. S.C. 920 WPYB Benson, N.C. 580 WRR Dallas. Tex. 310 WSNT Sandersville. Ga. 1490 WINS Coshocton. Ohio 1560 WQAM Miami. Fla. 560 WRRC Spring Valley. N. Y. 300 WSNW Seneca, S. C. 1150 WTNT Tallahassee, Fla. 1270 WOBC Vicksburg. Miss. 420 WRRR Rockford, III. 330 WSNY Schenectady. N.Y. 1240 WTOB Winston -Salem, N.C. 1380 WI 3Y Calais, Maine 230 WRRI Clinton. N.C. 880 WSOC Charlotte, N.C. 990 W TOC Savannah, Ga. WQIC Meridian. Min. 390 W RSA Saratoga Sprgs., N.Y. 280 W SO K Savannah, Ga. 1230 WTOD Toledo, Ohio 1560 W Q1 Jacksonville Fla. 280 WRSC State College. Pa. 390 WSOL Tampa. Fla. 1300 WTOE Spruce Pine, N.C. 1470 WQIZ St. George. S. C. 300 WRSJ Bayamon. P. R. 560 WSOM Salem, Ohio 800 WTOJ Tomah, Wit. 1460 WOMB Silver Spring, Md. 050 W RSL Stanford, Ky. 520 WSON Henderson. Ky. 860 WTON Staunton, Va. 1240 WQUK Greenville, S.C. 440 WRSW Warsaw. Ind. 480 WSOO Slt. Ste. Marie, Mich. 230 WTOP Washington. D.C. 1500 WUSN Charleston. S.C. 450 WRTA Altoona. Pa. 240 WSOQ No. Syracuse. N.Y. 220 WTOR Torrington, Conn. 610 WQSR Solvay, N.Y. 320 WRTH Wood River. III. 590 WSOR Windsor, Conn. 480 WTOT Marianna, Fla. 980 WQTE Monroe, Mich. 560 WRTL Rantoul, III. 250d WSOY Decatur, III. 340 WTPR Paris, Tenn. 710 W QT W Latrobe, Pa. 570 WRUF Gainesville. Fla. 850 WSPA Spartanburg, S.C. 950 WTPS Portage, Mich. 1560 790 WQUA Moline, III. 230 WRUM Rumford, Maine WSPB Sarasota, Fla. 450 WTRA Latrobe. Pa. 1480 WQVA Quantico. Va. 530 WRUN Utica. N.Y. 1150 WSPD Toledo. Ohio 370 WIRB Ripley, Tenn. 1570 WQXI Atlanta. Ga. 790 WRUS Russellville. Ky, 610 WSPF Hickory, N.C. 000 WTRC Elkhart, Ind. 1340 WQXL Columbia. S.C. 320 WRVA Richmond. Va. 1140 WSPR Springfield. Mass. 270 WTRL Bradenton. Fla. 1490 WQXQ Ormond Beh.. Fla. 380 WRVK Mt. Vernon. Ky. 1460 WSPT Stevens Pt., Wis, 010 WTRN Tyrone, Pa. 1940 1480 WQXR New York. N.Y. 560 WRWD Augusta. Ga. WSPZ Spencer. W.Va. 400 WTRO Dyersburg, Tenn. 1330 WQXT Palm Beach. Fla. 340 W R W H Cleveland. Ga. 1380 WSRA Milton, Fla. 490 WTRP LaGrange. Ge. 620 WRAA Luray, Va. 330 WRY/1 Selma, Ala, 1570 WSRC Durham, N.C. 410 WIRR Sanford. Fla. 1400 WRAB Arab. Ala. 380 WRXO Roxboro. N.C. 1430 WSRO Marlborough, Mass. 470 WTRU Muskegon. Mich. 1600 W RAC Racine. Wis. 480 WRYM New Britain, Conn. 840 WSRW Hillsboro, Ohio 590 WTRW Two Rivers, Wis. 1590 WRAD Radford. Va. 460 WRYT Pittsburgh, Pa. 1250 WSSB Durham, N.C. 490 WTRX Flint. Mich. 1330 WRAG Carrollton. Ala. 590 WSAC Fort Knox. Ky- 1470 WSSC Sumter. S.C. 340 WIRY Troy. N.Y. 980 WRAI Rio Piedras. P.R. 190 WSAF Sarasota, Fla. 1220 WSSO Starkville. Miss. 230 WTSA Brattleboro. Vt. 1450 WRAJ Anna. III. 440 WSAI Cincinnati, Ohio 1360 WSSV Petersburg. Va. 240 WTSB Lumberton. N.C. 1940 1340 WRAK Williamsport, Pa, 400 WSAJ Grove City, Pa. WSTC Stamford. Conn. 400 WTSL Hanover - Lebanon. WRAM Monmouth, III. 330 WSAL Logansport, Ind. 1290 WSTH Taylorsville. N. C. 860 New Hampshire 1400 WRAN Dover. N.J. 1510 WSAM Saginaw. Mich- 1400 WST1 St. Ignace. Mich. 940 WTSN Dover. N.H. 1270 W RAP Norfolk. Va. 850 WSAN Allentown, Pa. 1470 WSTK Woodstock, Va. 1230 WTSV Claremont, N.H. 1230 WRAW Reading. Pa. 1340 WSAO Senatobia. Miss. 1550 WSTP Salisbury. N.C. 1490 WTTR Vero Beach. Fla. 1490 WRAY Princeton, Ind. 1250 WSAR Fall River. Mass. 1480 WSTR Sturgis. Mich. 1230 WTTC Towanda. Pa. 1550 WRBC Jackson. Miss. 1300 WSAT nr. Salisbury, N.C. 1280 WSTU Stuart. Fla. 1450 WTTF Tiffin, Ohio 1600 WRBD Pompano Beach. Fla. 1470 WSAU Wausau, Wis. 550 WSTV Steubenville. Ohio 1340 WTTH Port Huron, Mich. 1380 WRHL Columbus. Ga. 1420 WSAV Savannah, Ga. 630 WSUB Groton, Conn. 980 WTTI Dalton. Ga. 1590 W RBN Warner Robins. Ga. 1600 WSAY Rochester. N.Y. 1370 WSUH Oxford. Miss. 1420 WTTL Madisonville, Ky. 1310 WRC Washington. D.C. 980 WSAZ Huntington, W.Va. 930 WSUI Iowa City. Iowa 910 WTTM Trenton, N.J. 920 WRCD Dalton. Ga. 1430 WSB Atlanta. Ga. 750 WSUN St. Petersburg. Fla 620 WTTN Watertown. Wis. 1580 WRCH New Britain. Conn. 910 WSBA Savannah. Ga. 1400 WSUX Seaford, Del. 1280 WTTO Toledo, Ohio 1520 WRCK Tuscumbia, Ala. 1410 WSBB New Smyrna Beach, WSUZ Palatka. Fla. 800 WTTR Westminster, Md. 1470 WRCO Richland. Wis. 1450 Florida 1230 WSVA Harrisonburg. Va. 550 WITS Bloomington, Ind. 1370

JUNE-JULY, 1966 105 WHITES C.L. Location Kc. C.L. Location Ke. C.L. Location Kg. WVIC E. Lansing. Mich. 730 WWIS Black River Falla, WXOX Bay City. Mich. 1250 WVIM Vicksburg, Miss. 490 Wis. 1260 WXMT Merrill, Wis. 730 WVIP Mt. Kisco. N.Y. 310 WWIT Canton. N.C. 970 WXRF Guayama. P.R. 1590 Qarixo WVJP Caguas. P.R. 110 WWII Lorain. Ohio 1380 WXTN Lexington. Miss, 1000 WVJS Owensboro, Ky. 420 WW1 Detroit, Mich. 950 WXTR Pawtucket, R.I. 550 WVKO Columbus. Ohio 580 WWJB Brooksville. Fla. 1450 WXUR Media. Pa. 690 WVLD Valdosta. Ga. 450 WWJC Superior, Wis. 1270 WXVA Charles Town. W.Va. 1550 ao@ WVLK Lexington. Ky. 590 WWKE Ocala. Fla. 1370 WXVW Jeffersonville. Ind. 1450 WVLN Olney. Ill. 740 WW KY Winchester. Ky. 1980 WXXX Hattiesburg, Miss. 1310 WVMC Mt. Carmel. 111. 1360 WWL New Orleans. La. 870 WXYC Ft. Myers. Fla. 1350 C.L. Location Kc. WVMI Biloxi. Miss. 570 WWML Portage, Wis. 1470 WXYZ Detroit, Mich, 1270 WVMT Burlington. Vt. 620 WWNC Asheville. N.C. 570 WYAL Scotland Neck. N.C. 1280 WTTT Amherst, Mass. 1430 WVNA Tuscumbia. Ala. 1590 WWNH Rochester. N.M. 930 WYAM Bessemer, Ala. 1450 WTUF Mobile, Ala. 840 WVNJ Newark. N.J. 6211 WWNR Beckley. W.Va. 620 WYBG Massena. N. Y. 1050 WTUG Tuscaloosa. Ala. 790 WVOB Bel Air, Md. 1520 WWNS Statesboro, (la. 1240 WYCL York, S.C. 1580 WTUP Tupelo. Miss. 490 WVUC Battle Creek. Mich. 1500 WWNY Watertown. N.Y, 790 WYDE Birmingham. Ala. 850 WTUX Wilmington, Del. 290 WVOE Chadburn, N.C. 1590 WWOD Lynchburg. Va. 1390 WYGO Corbin, Ky. 1330 WTVB Coldwater. Mich. 590 W VUH Hazelhurst. Ga. 920 W WOK Charlotte. N.C. 1480 WYHE Bristol. Tenn. 1550 WTVL Waterville. Maine 490 WVOK Birmingham. Ala. Ií90 WWOL Buffalo. N.Y. 1120 WYLD New Orleans. La. 940 WTVN Columbus. Ohio WVOL Berry Hill. Tenn. 1470 WWOM New Orleans, La. 600 WY LO Jackson, Wis. 540 W T W A Thomson. Ga. 610240 luka. Miss. 1270 WWON Woonsocket. R.I. 1240 WYMB Manning, S.C. 1410 WTWB Auburndale, Fla. 240 WVOM WVUN Cicero, Ill. 1450 WWOW Conneaut, Ohlo 1960 WYND Sarasota, Fla. 1280 W T W N St. Johnsbury. Vt. 340 Vidalia. Ga. 970 WWPA Williamsport. Pa. 1340 WYNG Warwick -East WTXL W. Spgfd.. Mass. WVOP 490 WVOS Liberty. N.Y. 1240 WWPF Palatka. Fla. 1260 Greenwich. R.I. 1590 WTYC Rock Hill. S.C. 490 W VOT Wilson. N.C. 1420 WWRI W. Warwick. R.I. 1450 WYNK Baton Rouge, La. 1980 WTYM East Longmeadow. WVOW Logan. W.Va. 1290 W W RL New York, N.Y. 1600 WYNN Florence, S.C. 540 Mass. 600 WVOX New Rochelle. N.Y. 1480 WWSC Glens Falls, N.Y. 1450 WYNR Brunswick. Ga. 7911 WTYN Tryon. N.C. 550 WVOZ Carolina. P.R. 1400 WWSD Monticello. Fla. 1090 WYNS Leighton. Pa. 1150 WTYS Marianna. Fla. 340 WVPO Stroudsburg, Pa. 840 W W SF Loretto. Pa. 1400 WYNX Smyrna, Ga. 1550 WUFD Amherst. N.Y. 080 WVSC Somerset. Pa. 990 WWSR St. Albans. Vt. 1420 WYNZ Ypsilanti, Mich. 1520 WUFF Eastman. Ga. 710 WVTR White River June., Vt. 910 WWST Wooster. Ohio 960 WYOQ Wyoming, Mich. 1530 WUFO Amherst. N. Y. 080 WVVW Grafton. W.Va. 1260 WWSW Pittsburgh. Pa. 970 WYOU Tampa. Fla. 1550 WULA Eufaula. Ala. 240 WWAB Lakeland. Fla. 1330 WWTC Minneapolis, Minn. 1280 WYPR Danville, Va. 970 WU MU Gainesville. Fla. 1390 W W BC Cocoa. Fla. 1510 W W UN Jackson. Miss. 1590 WYRE Annapolis, Md. 810 WUNA Aguadilla. P. R. 340 WWBD BambergDenmark, WWVA Wheeling. W.Va. 1170 WYRN Louisburg. N.C. 1480 WUND Uhrlehsville, Ohio 540 S.C. 790 W W W B Jasper. Ala. 1360 WYSH Clinton. Tenn. 1380 W U N E Baton Rouge, La. 550 Windber, Pa. 1350 WWWF Fayette. Ala. 990 WYSI Ypsilanti, Mich. 1480 WUNI Mobile. Ala. 550 WWWBR W BZ Vineland. N.J. 1380 W W W R Russellville. Ala. 920 WYSL Buffalo, N.Y, 1400 WUNO Rio Piedras. P.R. 320 WWCA Gary. Ind. 1270 WWXL Manchester. Ky. 1450 WYSR Franklin, Va. 1250 WUNS Lewisburg, Pa. 010 WWCC Bremen, Ga. 1440 WWYN Erie, Pa. 1260 WYTH Madison. Ga. 1250 WUPR Utado, P.R. 530 WWCH Clarion, Pa. 1900 WWYO Pineville. W.Va. 970 WYTI Rocky Mount, Va. 1570 WUSJ Lockport. N.Y. 340 WWCM Brazil. Ind. 1380 WXAL Demopolis, Ala. 1400 WYVE Wytheville, Va. 1280 WUSM Havelock, N.C. 330 W WCO Waterbury. Conn. 1240 W XCL Peoria. III. 1350 WYZE Atlanta. Ga. 1480 WUST Bethesda. Md. 120 WWDC Washington. D.C. 12110 WXCO Wausau. Wis. 1230 WZBN Zion. III. 1500 W U W U Gainsville. Fla. 390 WWOR Murfreesboro. N. C. 1080 W X1:1 Richmond. Va. 950 WZEP DeFuniak S cgs., Fla. 1460 WVAK Paoli. Ind. 560 WWDS Everett. Pa. 1110 WXHR Cambridge. Mass. 740 WZIP Cincinnati. Ohio 10511 WVAL Sauk Rapids. Minn. 800 WWGM Nashville. Tenn. 1560 WXIG Windemere, Fla. 1480 WZKY Albemarle. N.C. 1580 WVAM Altoona. Pa. 430 WW(,O Erie. Pa. 1450 W X KW Troy. N. Y Iú00 WZOB Ft. Payne. Ala. 1250 WVAR Rlchwood. W.Va. WWGP Sanford, N.C. 10511 WXLI Dublin. Ga. 1230 WZOE Princeton, III. 1490 WVCB Shallotte. N. C. 4BÚ WVCF Windermere. Fla. 480 W W GS Tifton. Ga. 1490 WXLL Big Delta. Alaska 980 WZOK Jacksonville, Fla. 1920 WVCG Coral Gables. Fla. 080 WWHG Hornell. N.Y. 1920 WXLN Potomac -Cabin John. WZRH Zephyr Hills, Fla. 1400 WVCH Chester. Pa. 740 WWHY Huntington, W.Va. 1470 Md. 950 WZUM Carnegie. Pa. 1590 WVEC Hampton. Va. 490 WWIL Ft. Lauderdale. Fla. 1580 WXLW Indianapolis. Ind. 950 WZYX Cowan, Tenn. 1440 WVGT Mt. Dora. Fla. 380 WWIN Baltimore. Md. 1400 WXOK Baton Rouge. La. 1260 WZZZ Boynton Beach, Fla. 1510

U. Se FM Stations by Call Letters C.L. Location C.L. Location C.L. Location C.L. Location KABC -FM Los Angeles. Calif. KBMC Eugene. Ore. KCUI Pella. la. KERI Bellingham, Wash. KABLFM San Francisco. Cal. KBMF -FM Spearman. Tex. KCUL -FM Ft. Worth. Tex. KERN -FM Bakersfield, Calif. KACA Prosser, Wash. KBMS Los Angeles, Calif. KCU RFM Kansas City, Mo, KERR Salinas, Cal. KACE -FM Riverside. Calif. KBNO Houston. Tex. KCVRFM Lodi, Calif. KERS Sacramento. Cal. KADI St. Louis, Mo. KBOA -FM Kennett. Mo. KCWSFM Ellensburg- Wash. KESM -FM El Dorado Springs, KAFI Auburn, Calif. KBOC Ogden. Utah KCYS Richland. Wash. Mo. KAFM Salina, Kans. KBOE -FM Oskaloosa. Iowa WDAF -FM Kansas. Mu. KETO -FM Seattle. Wash.(s) KAIM -FM Honolulu. Hawaii KBOI.FM Boise. Ida. KDB -FM Santa Barbara, Calif. KEWC -FM Cheney. Wash. KAJS Newport Beach, Calif. KBOX -FM Dallas, Tex. KDDD -FM Dumas. Tea. KEZE Anaheim, Calif. KAKC Tulsa, Okla. KBOY -FM Medford, Oreg. KDEFFM Albuquerque, N.Mex. KFAB -FM Omaha, Nebr. KAKI San Antonio, Tex. KBPI Denver, Colo. KDES -FM Palm Spas.. Calif. KFACFM Los Angeles, Calif. KALB -FM Alexandria. La. KBRG San Francisco. Cal. KDFC San Francisco. Calif. KFAMFM St. Cloud. Minn. KALH Denver, Colo. KBRO -FM Bremerton. Wash. KOEF -FM Albuquerque. N. M. KFAY -FM Fayetteville. Ark. KALW San Francisco, Calif. KBTC -FM Houston. Mo. KOFM Walnut Creek, Cal. KFBD Waynesville. Mo. KAMS Mammoth Spring, Ark. KBTM -FM Jonesboro. Ark. KDFR Tulare. Cal. KFBKFM Sacramento. Calif. KANG Angwin, Cal. KBUZ -FM Mesa. Ariz. KOHIFM Twenty -Nine Palms. KFCA Phoenix. Ariz. KANS -FM Lamed, Kan. KBVR Corvallis, Ore. Cal. KFGQ -FM Boone. Iowa KANT -FM Lancaster. Calif. KBY R- F M Anchorage, Alaska KD KAFM Pittsburgh. Pa. KFHFM Wichita. Kans. KANU Lawrence. Kans. KBYU -FM Provo, Utah KDLA -FM De Ridder. La. KFJC Los Altos. Cal. KANW Albuquerque, N.Mex. KCABFM Dardan.11e. Ark. KOMC Corpus Christi, Tex. KFJZ Fort Worth, Tex. KAOL -FM Carrollton. Mu. KCAL -FM Redlands. Calif. KOMI Des Moines, lowa(s) KFLA -FM Scott City. Kan. KARA -FM Albuquerque. N.M. KCBH Beverly Hills. Calif.(o) KUNC -FM Spokane. Wash. KFLY -FM Corvallis. Ore. KARK Little Rock, Ark. KCBS -FM San Francisco. Calif. KDNTFM Denton, Tea. KFMB -FM San Diego, Calif. KARL -FM Carlsbad. Cal. KCE E -FM Tucson. Ariz. KDUKFM Tyler. Tex. KFMC Portland, Oreg. KARM -FM Fresno. Calif. KCE R Redding. Cal. KOPS Des Moines, Iowa KFMF Ft. Collins, Colo. KASU Jonesboro. Ark. KCF C Kansas City. Kan. KUSU Fargo, N.U. KFMG Des Moines. la. KATT Woodland. Calif. KCF M St. Louis. Mo. KOTH.FM Dubuque. la. KFMK Houston.Tex.(s) KFML -FM Denver. Colo.(s) KATY -Fat San Luis Obispo. Calif. KCH 11-FM Conchella. Calif. I (DUO Riverside, Calif.(s) KAVIFM Rocky Ford, Colo. KCIB -FM Fresno. Calif. (s) KDUX -FM Aberdeen. Wash. KFMM Tucson. Ariz. KAVR -FM Applevalley. Cal. KCIL .FM Houma. La. KDVR Sioux City. KFMN Abilene, Tex. KAYD Beaumont. Tex. KCK N -FM Kansas City. Kan. KEAR San Francisco, Calif. KFMP Port Arthur, Tex.(s) KAZZ Austin. Tu. KCL E -FM Cleburne, Tex. KEAX National City. Calif. KFMQ Lincoln, Nebr. KBBI Los Angeles. Calif. KCL 0-FM Leavenworth. Kans. K ER1 Phoenix. Ariz. KFMR Freinant. Cal. KBBL Riverside. Cal KCLU -FM Rolla. Mo. KEBR Sacramento, Calif. KF MU Glendale. Calif. (s) KBBW San Diego. Cal. KCMA San Francisco. Cal. KEBS San Diego. Calif. KFMV Minneapolis, Minn KBBX Seattle. Wash. KCMB.FM Wichita. Kans. KLCR El Cajon. Calif. KFMW San Bernardino, Calif. KRCA Los Angeles. Calif. KCMI Los Angeles, Calif. KEDCFM Northridge. Cal. KFMX San Diego, Calif. lst KBCL -FM Shreveport. La. KCMK Kansas City. Mo. KEED -FM Springfield- Eugene, KFMM Eugene. Ores.(s) KBEE -FM Modesto. Calif. KCMOFM Kansas City. Mo.(s) Oregon KFNB Oklahoma City. Okla. KBEY Kansas City. Mo. KCMS -FM Manitou Springs. Colo KEEN -FM San Jose, Calif. KFNE Big Springs. Tex. KBFI Boise, Idaho KCOM Omaha, Nebr. KEEZ San Antonio. Tex.isl KFNW -FM Fargo. N.D. KBFL Buffalo. Mo. KCPS Tacoma. Wash. KEFC Waco, Tex.lsl KFOG San Francisco. Calif. KBFM Lubbock, Tex. KCPXFM Salt Lake City. Utah KEFM Santa Posa, Cal. KFOXFM Los Angeles. Cal. KBGL Pocatello. Ida. KCRA -FM Sacramento. Calif. KEFW Honolulu. Hawaii KF RC-FM San Francisco, Calif. KBHF Bozeman, Mont. KCRW Santa Monica. Calif. KEIR Dallas. Tex. KFRE -FM Fresno. Calif. KBHSFM Hot Springs. Ark. KCSBFM Santa Barbara. Cal. KELDFM El Dorado. Ark. (s) KFRN -FM Brownwuod. Tex. KBIG -FM Los Angeles -Avalon, KCSM San Mateo, Calif. KELE Phoenix. Ariz. KFUO -FM Clayton. Mo. Cal. KCSU -FM Ft. Collins. Colo. KELOFM1I Sioux Falls. S. 0. KFYRFM Bismarck. N.D. KBIMFM Roswell. N.Mex. WCTS FM Minneapolis. Minn. KELT Harlingen. Tex. KGAFFM Gainesville, Tex. KBLEFM Seattle. Wash. KCUEFM Red Wing. Minn. KEMO St. Louis, Mo. KGB -FM San Diego. Calif.

106 RADIO -TV EXPFRI\IENTER C.L. Location C.L. Location C.L. Location C.L. Location City, la. KLWNFM Lawrence. Kan. KPPC -FM Pasadena. Calif. KTFC Sioux KGBC -FM Galveston. Tex. Kans. KTGM Denver, Colo. KGBIFM Omaha. Neb. KLXN Seattle. Wash. KPPSFM Parsons. La. -FM Bakersfield, Calif. KPRI San Diego. Calif. KTIB -FM Thibodaux, KGBN -FM Caldwell. Idaho KLYD KTIM San Rafael. Calif. KGEE -FM Bakersfield. Cal. (s) KLYN FM Lynden, Wash. KPRN Seattle. Wash. Tenn. KPRS -FM Kansas City, Mo. KTISFM Minneapolis, Minn. KGEN -FM Tulare. Cal. KLYX Memphis. KTJO.FM Ottawa. Kans. Wash. KLZ -FM Denver. Coto. KPSD Dallas. Tex. KGFM Edmonds. Ark. KQAL -FM Omaha. Nebr.(s) KTMSFM Santa Barbara. Cal. KGGK Garden Grove. Calif.(s) KMAG -FM Ft. Smith, KTNTFM Tacoma. Wash. Wash. KMAK -FM Fresno. Calif. KQFM Portland. Oreg. KGHO.FM Hoquiam. Odessa. Tex. K70D -FM Sinton. Tex.(s) KGLA Los Angeles. Calif. KMAP Dallas, Tex. KW KTOP Topeka. Kan. KMAX Sierra Madre. Calif. KQRS -FM Golden Valley. Minn. K(:M E-F M Centralia, Wash. (CITY Wichita. Kan. KTOY Tacoma. Wash. KGMI -M Bellingham. Wash. KMBC -FM Kansas City. Mo.(s) KTOM -FM Clovis. N. M. Pacific Grove. Cal. KQUE Houston. Tex. (s) KGNCFM Amarillo. Tex. KMBYFM Pa. KTRB -FM Modesto, Calif. Kan. KMCP Portland, Oreg. KQV -FM Pittsburgh. KGNO -FM Dodge City, KRAB Seattle. Wash. KTRHFM Houston, Tex. KGOFM San Francisco. Calif. KMEO Phoenix. Ariz. (n) KTSMFM El Paso. Tex. Fresno. KRAK -FM Stockton, Calif. KGPO Grants Pass, Oreg. KMER Calif. Nev. KTSR Kansas City, Mo. K MET Denver. Colo. KRAM -FM Lns Vagas. KGRIFM Henderson. Tex. Tulsa, Okla.'s) KTTS -FM Springfield. MO. KGUO -FM Santa Barbara, Calif. KMFM San Antonio. Tex. (s) KRAV KTUX Hayward, Cal. Ark. KMHT Marshall. Tex. KRBE Houston, Tex.(s) KGUS Hot Springs. Colorado Springs. Colo. KTW -FM Seattle Wash. -FM Belgrade. Mont. KMJ -FM Fresno. Calif. KRCC Spokane, `Nash. KGVW K RCW Santa Barbara, Calif. KTWD KHAK -FM Cedar Rapids, lowa(s) KMLBFM Monroe. La.(s) KTWN Anoka. Minn. Alaska KMMK Little Rock. Ark. K REB Monroe. La. KHAR -FM Anchorage. Spokane. Wash. KTXJFM Jasper. Tex. Plainview, Tex. KMOD -FM Midland. Tex. KREMFM Tex. KHBL K REP Santa Clara. Cal. KTXNFM Victoria. KHBR -FM Hillsboro, Tex. KMOR -FM Morehead. Ky. KTWR Tacoma. Wash. KMOX -FM St. Louis. Mo. KREXFM Grand Junction. Colo. KHCBFM Houston. Tex. KRFM Phoenix, Ariz. KTXRFM Springfield. Mo.(s) KHEP -FM Phoenix, Ariz. KMPX San Francisco. Calif.(s) KTXT -FM Lubbock. Tex. KMSC Clear Lake City. Tex. KRHM Los Angeles. Calif. KHFIFM Austin. Tex. El Dorado, Ark.(si KTYMFM Inglewood. Calif. N. Mex.(n) KMSM Rolla, Mo. KRIL Alaska KHFM Albuquerque, K RIT Clarion. Iowa KUAC College, K H FR -FM Monterey. Calif.(s) KMSU Mankato. Minn. KUID Moscow. Ida. KMUL.FM Muleshoe. Tex. KR KDFM Los Angeles. Calif. KHGM Beaumont. Tex.(s) KRKH -FM Lubbock. Tex. KUDE -FM Oceanside. Calif. KH IQ. Sacramento. Calif.(s) KMUW Wichita, Kans. KUDU -FM Marysville, Calif. KRKY Denver. Colo. KHJFM Los Angeles, Calif. KMYC.FM KRLD -FM Dallas. Tex. Ventura -Oxnard, Calif.(s) KHMS El Paso. Tex. KMUZ Santa Barbara, Calif.(s) KUER Salt Lake City. Utah Okla. KRMD -FM Shreveport. La. KNOB -FM Hobbs. N. M. KNBQ Bethany. KRMGFM Tulsa. Okla. KUFM Missoula, Mont. KHOF Los Angeles, Calif. KNBRFM San Francisco, Calif. KUFY Redwood City. Calif. Kan. KRML -FM Carmel. Cal. KHOL -FM Kearney. Neb. KNRU Baldwin. KRMS -FM Osage Beach. Mo. KUGNFM Eugene. Oreg. KHOM FM Turlock. Calif.(s) KNDX Yakima. Wash. KUH F Houston. Tex. Ark. KRNL.FM Mt. Vernon. la. KHOZFM Harrison. Ark. KNEA -FM Jonesboro, KRNW Boulder. Colo. KUKI -FM Ukiah, Cal. KHPC Brownwood, Tex. KNEBFM Scottsbluff. Nebr. KRNY -FM KearneyHoldrege, (UMDFM Duluth. Minn. KHQFM Spokane. Wash. KNED -FM McAlester. Okla. Nebraska KUNF La Canada. Cal. KHSC Arcata. Calif. KNER Dallas, Tex. Rochester. Minn. KUOA -FM Siloam Springs. Ark. Nev. (s) KROC -FM KHSJ -FM Hemet. Cal. KNEV Reno. K RON -FM San Francisco. Calif. KUGH Honolulu, Hawaii KHUL Houston, Tex. KNEW -FM Scottsbluff, Nebr. KROS -FM Clinton. Iowa KUOP Stockton. Cal.(si KHVH.FM Honolulu. Hawaii KNFB Nowata. Okla. KROW Santa Barbara. Calif. KUORFM Redlands. Cal. KHVR Bijou. Calif. KNFM Midland. Tex. KROY -FM Sacramento. Calif. KUOW Seattle. Wash. KHYI Fremont. Calif. KNITS Torrance. Cal. KRPM San Jose, Calif. KUPD -FM Temps. Ariz. KICD -FM Spencer. la. KNIKFM Anchorage. Alaska KRRC San Jose. Calif. KUPKFM Garden City, Kan. KICS -FM Hastings. Neb. KNIX -FM Phoenix. Ariz. (s) KRSA -FM Salinas. Cal. KURLFM Billings. Mont. KICN Omaha. Nebr. KNJO Thousand Oaks. Calif. (RSI Minneapolis. Minn.(s) KUSC Los Angeles, Calif. KID -FM Idaho Falls. Ida. KNOB Long Beach. Calif. (s) KRSI -FM St. Louis Park. Minn. KUSN -FM St. Joseph. Mo. KIEM Eureka. Calif. KNOC -FM Natchitoches. La. KRSLFM Russell. Kan. KUSUFM Logan, Utah KIFG -FM Iowa Falls. la. KNOE -FM Monroe. La. KRSNFM Los Alamos, N.Mex. KUTFM Austin. Tex. KIFM Bakersfield. Cal. KNOF St. Paul. Minn. K RST Albuquerque, N. M. KUTE Glendale. Calif. KIHI Tulsa. Okla. KNOKFM Ft. Worth, Tex. KRUS -FM Ruston. La. KUWS -FM Newton. la. KI KS -FM Lake Charles. La. KNRO -FM Conroe. Tex. KRVM Eugene. Oreg. KVCR San Bernardino, Calif. K MNFM Denver. Colo. KNTO Wichita Falls. Tex.(s) KRVNFM Lexington, Nebr. KVEG -FM Las Vegas. Nev. KIMP -FM Mt. Pleasant. Tex. KNUS Dallas. Tex. KRWG University Park, N. M. KVEN -FM Ventura. Calif. KINGFM Seattle, Wash. KNWSFM Waterloo. Iowa KRVS -FM Lafayette. La. KVFM San Fernando. Calif. KI00 Oklahoma, Okla. KNX -FM Los Angeles. Calif. KRYT -FM Colorado Springs, KVII -FM Amarillo. Tex. KIRO -FM Seattle. Wash. KN X R Rochester. M inn. Colo. KVILFM Highland Park-Dallas. KISA Kansas City, Mo. KOA FM Denver. Colo. KSAM -FM Huntsville. Tex. Tex. KISS San Antonio, Tex. KOAP -FM Portland, Ore. KSBY -FM San Luis Obispo, Cal. KVOAFM Tucson, Ariz. KISW Seattle. Wash.(s) KOAT -FM Albuquerque. N.M. KSCO Santa Cruz. Calif. KVOE -FM Emporia. Kan. KITH Phoenix, Ariz. KOB -FM Albuquerque. N.M. KSBW -FM Salinas. Calif. KVOFFM El Paso. Tex. KITT San Diego. Calif. KOBH -FM Hot Springs. S.D. KSDA La Sierra. Calif. KVOK Honolulu. Hawaii KITY San Antonio. Tex. (s) KOCM Newport Beach. Cal. KSDBFM Manhattan. Kans. KVOPFM Plainview. Tex. KIXI -FM Seattle. Wash. KOCV Odessa. Tex. KSDO -FM San Diego. Cal. KVOR -FM Colorado Springs, Colo. KIXL -FM Dallas. Tex.(s) KOCW Tulsa. Okla.(s) KSOS San Diego, Calif. KVSC Logan. Utah KJAZ Alameda. Calif. KOCYFM Oklahoma City. Okla. KSEA San Diego. Calif. KVTT ()alas. Tex. KICK -=M Junction City. Kan. KODAFM Houston. Tex. KSEL -FM Lubbock. Tex. K V W M Show Low, Ariz. KIEF -FM Jennings. La. KOFM Oklahoma City. Okla. KSEO -FM Durant. Okla. KWAR Waverly, Iowa KJEM -FM Okla. City. Okla. KOFO -FM Ottawa, Kan. KSFM Dallas. Tex.(s) (WAX Eugene. Oreg. KJIM Ft. Worth. Tex. KOGM -FM Tulsa. Okla KSFR San Francisco, Calif.(s) KWBEFM Beatrice, Neb. KJLH Long Beach. Cal. KOGO San Diego, Calif. KSFV San Fernando, Calif. KWBU Waco. Tex. KJLM San Diego, Calif. KOI N.FM Portland, Oreg. KSFX San Francisco. Calif. KWOM Des Moines. la. (s) KJML Sacramento. Calif. KOKH Oklahoma City. Okla. KSGV West Covina. Cal. KWFM Minneapolis. Mian.(s) KJOY -FM Burlington. Vt. KOL FM Seattle, Wash. KSHE Crestwood. Mo. KWGFM Stockton. Calif. KJPO Fresno, Calif. KONG -FM Visalia. Calif. KSHS Colorado Springs. Colo. KWGN -FM Abernathy, Tex. KJRG -FM Newton. Kans. (s) KOOL -FM Phoenix, Ariz. KSISFM Sedalia. Mo. (s) KWGS Tulsa. Okla. KISS Houston. Tex. K01'R -FM Great Falls. Mont. KSJOFM San Jose. Callf.(s) KWHG Lincoln. Neb. KJSK -FM Columbus, Neb. KORAFM Bryan. Tex. KSJS San Jose. Calif. KW H I F M Brenham, Tex. KKFM Colorado Springs. Colo. KORK Las Vegas, Nev. KSJT San Angelo, Tex. KWHO -FM Salt Lake City. Utah KKHI.FM San Francisco. Cal. KOSE -FM Osceola. Ark. KSL -FM Salt Lake City. Utah(a) KWHP Edmond. Okla. K KIT-FM Taos. N. M. KOSI.FM Denver, Colo. KSLA Seattle, Wash.(s) KWIP -FM Merced. Cal. KKOP Redondo Beach. Cal. KOST Dallas. Tex. KSLH St. Louis. Mo. KWIX St. Louis. Mo. KLAC -FM Los Angeles. Calif. KOSU -F M Stillwater. Okla.(s) KSI.O.FM Opelousas. La. KWIZFM Santa Ana. Calif. KLAK -FM Lakewood. Colo. KOSY -FM Texarkana. Tex. KSMAFM Santa Maria, Calif. KWIB -FM Globe, Ariz. KLAW Lawton. Okla. KOTN -FM Pine Bluff. Ark. KSMB Lafayette. La. KWKCFM Abilene. Tex. KLAY -FM Tacoma. Wash. KOWH -FM Omaha. Neb. KSNM Santa Fe. N. M. KW KHFM Shreveport, La. KLBS -FM Los Banos. Cal. KOWNFM Escondido. Cal, KSOFM Des Moines. Iowa KWLM -FM Willmar, Minn. KLCN -FM Blytheville. Ark. (OVA Ontario, Cal. KSOM Tucson, Ariz. K W LW San Angelo. Tex. KLEA -FM Loxington. N. M. KOYLFM Odessa. Tex. KSOP -FM Salt Lake City. K W M F F M Walnut Creek. Cal. KLEF Houston. Tex. (s) KOZE -FM Lewiston, Idaho Utah ls) K W MO Odessa. Tex. KLEN.FM Killeen. Tex. KPAC -FM Port Arthur. Tex. KSPC Claremont. Calif. KWMT -FM Ft. Dodge. la. KLF.S _os Gatos. Cal. KI'AN F M Hereford. Tex. KSPI -FM Stillwater. Okla. KWNSFM Pratt, Kan. KLFM Beverly Hills. Calif. KPATFM Berkeley. Calif. KSPL -FM Diboll. Tex. KWNTFM Davenport. la, K LI R -FM Denver. Colo. KPCS Pasadena. Calif. KSRF Santa Monica. Calif. KWOA -FM Worthington. Minn. KLIZ -FM Brainerd. Minn. KPDQ -FM Portland. Ore. KSTE Emporia. Kans. KWOC -FM Poplar Bluff, Mo. K LIT Lake Jackson. Tex KPELFM Lafayette. La. KSTL -FM St. Louis. Mo. KWPC -FM Muscatine, Iowa KLMO. FM Longmont. Colo. (l'EN San Francisco. Cal(s) KSTN -FM Stockton, Calif. KWPM -FM West Plains. Mo. KLOA -FM Ridgecrest. Calif. KPETFM Lanese. Tex. KSTP -FM St. Paul. Minn. KWWCFM Columbia. Mn. KLOMFM Lompoc. Cal. KPFA Berkeley. Calif. KSUI Iowa City. Iowa KXEL -FM Waterloo. Iowa(%) KLON Long Beach. Calif. KPFB Berkeley. Calif. KSYN Joplin. Mo.'s) KXFM Santa Maria. Cal. KLOR -FM Ponca City. Okla. KPFK Lus Angeles. Calif. KTAC -FM Tacoma. Wash. KXIC -FM Iowa City. la. KLOV -FM Loveland. Colo. KPLC -FM Lake Charles. La. KTAL Texarkana. Tex. KXJKFM Forrest City. Ark. Paris. Tex. KLRO San Diego. Calif. (s) KPLT -FM KTAP Tucson. Ariz. KXKX San Francisco. Calif. KPLX San Jose. Cal. KTAR -FM Phoenix. Ariz. KXL.FM Portland. Ore. KLSN Seattle, Wash.(s) Oreg. (s) Colo.(s) K P F M Portland. KTBCFM Austin, Tex.(s) KXLU Los Angeles. Calif. K LST Colorado Springs. KPGM Los Altos, Calif. Iowa KX YFM Spokane. Wash. Lake City. Utah KTCF Cedar Falls, KLUBFM Salt KPLR -FM St. Louis. Mo. Smith. Ark. KXOA Sacramento. Calif. Longview. Tex. Cal. KTCS -FM Ft. KLUEFM KPMT Oxnard. KTCU -FM Ft. Worth. Tex. KXOL.FM Ft. Worth. Tex. (s) KLU R Wichita Falls, Tex. KPOI.FM Honolulu. Hawaii (s) KTEA -FM Midwest City. Okla. KXQR Fresno. Calif.(s) - Beaumont. Tex. KPOJ.FM Portland. Oreg. KLVI FM KTEC Crateoh, Oreg. KXRQ Sacramento. Calif. KLVL Pasadena. Tex. K POL -FM Lus Angeles. Calif. 107 JUNE-JULY, 1966 WHTE'9 C.L. Location C.L. Location C.L. Location WBCB -FM Levittown- Fairleu WCNB -FM Connersville, Ind. WEED -FM Rocky Mount, N.C. Hills, Pa. WCNH -FM Quincy. Fla. WEEF -FM Highland WBCIFM Williamsburg, Va. Park. III. Qaoo WCNO Canton, Ohio(s) WEEI -FM Boston, Masa. WBCL -FM South Beloit, III. WCNT -FM Centralia, Ill. WEEP -FM WBCM -FM Bay Pittsburgh, Pa. City. Mich. WCNW -FM Hamilton. Ohio WEEX -FM Easton. Pa. W BCN Boston. Mass.(s) WCOA -FM Pensacola. Fla. WEFA Waukegan, Ill. WBCO -FM Bucyrus, O. WCOD Richmond. Va. WEFM Chicago, Ill. aoc WBCR -FM Beloit, Wis. WCOH -FM Newnan, Ga. WEGO -FM Concord, N.C. WBDG Indianapolis, Ind. WCOL -FM Columbus, WBEL -FM Ohio WEHHFM Elmira, N. Y. S. Beloit. Ill. WCOM -FM Urbana, O. WEIC -FM Charleston, Ill. C.L. Location WBEN -FM Buffalo, N.Y. WCONFM Cornelia, Ga. WEIV WBET -FM Brockton. Ithaca, N.Y. Mass. WCOP -FM Boston, Mass. WEKZ -FM Monroe. Wis. KXTR Kansas City, Mo.(s) WBEU -FM Beaufort, S.C.(s) WCOS -FM Columbia, WBEX -FM S.C. WELD -FM Tupelo. Miss, KXXI Alamogordo. N. M. Chillicothe. Ohio WCUUFM Lewiston. Maine WELF Glen Ellyn, KXYZFM Houston. Tex. (s) WBEZ Chicago, III. WCOW -FM Sparta. Wis. Ill. WBFG W ELG Elgin, Ill. KYA -FM San Francisco. Calif. Detroit. Mich. WCPO -FM Cincinnati. Ohio WELL -FM Freeport, KYEW Phoenix, W B F M Seneca. S. C. WCPS Ill. Ariz. -FM Tarbor, N.C. WELP -FM Easley. S. KYFM Oklahoma City. Okla. WBFO Buffalo. N.Y. WCRAFM Effingham, Ill. C. WBGM -FM Tallahassee, WEMC Harrisonburg, Va. KYLE -FM Temple. Tex. Fla. WCRB -FM Waltham, Mass.(s) WEMI Tampa, Fla. KYMS Santa Ana, Cal. WBGO Newark, N.J. WCRD Bluffton, Ind. KYSM -FM WBGU WEMP -FM Milwaukee, Wis. Mankato. Minn. Bowling Green, Ohio WCRF Cleveland, O. WEMU Ypsilanti, Mich. KYW -FM Cleveland, Ohio WBHS Warwick, R.I. WCRQ Providence, R. I. WEND -FM Ebensburg. Pa. KZAK Tyler, Tex. WBHT -FM Brownsville, Tenn. WCRS -FM Greenwood. S. KZAM C. WENY -FM Elmira, N. Y. Seattle. Wash.(s) WBIE -FM Marietta, Ga. WCRT -FM Birmingham. Ala. WEOKFM Poughkeepsie. KZFM Corpus Tex. WBIR Knoxville, Tenn. N.Y. Christi, WCSCFM Charleston, S.C. WEOL -FM Elyria, Ohio KZOM Oklahoma City, Okla. WBIV Wethersfield, N.Y. WCSIFM Columbus, Ind.(s) KZSU WBJC Baltimore, WEPM -FM Martinsburg, W.Va. Stanford, Cal. Md. WCSM -FM Celina. O. WEPS Elgin, Ill. KZUN -FM Opportunity. Wash. WBKV -FM West Bend. Wis.(s) WCSQ Central Square, N.Y. WEAR WAAB -FM Worcester, WBKW Beckley, W.Va. Goldsboro, N.C. Mass. WCST -FM Berkeley Springs. WERE -FM Cleveland, Ohio WAAMFM Parkersburg, W.Va. WBKY Lexington, Ky. W. Va. WERI -FM Westerly, WAAZ -FM Crestview, WBLK -FM R.I. Fla. Buffalo, N.Y. WCTC -FM New Brunswick, N.J. WERM Wapakoneta, Ohio WABA -FM Aguadilla, P.R. WBLR -FM Batesburg, S.C. WCTM Eaton, WABC Ohio WERS Boston. Mass, -FM New York, N.Y. WBLY -FM Springfield. Ohio WCTS -FM Minneapolis. Minn. WERT -FM Van Wert, WABE Atlanta, Ga. WBMK -FM Ohio West Point, Ga. WCTW -FM New Castle, Ind. WESC -FM Greenville. S.C. WABFFM Fairhope, Ala. WBMI Meridan, Conn.(s) WCUEFM Akron. O. WABI -FM WEST -FM Easton, Pa. Bangor. Maine WBNEFM Fitchburg, Mass. WCUF Akron. Ohio WETL South Bend Ind. WABQ Cleveland, Ohio WBNT -FM Oneida. Tenn. WCUM -FM WABX -FM Cumberland, Md. WETN Wheaton, III. Detroit. Mich. (s) WBMP Elwood. Ind. WCUYFM Cleveland His., Ohio WEVC Evansville. Ind WABZ -FM Albemarle, N.C. WBNO -FM Bryan, Ohio WCWC -FM Ripon. Wis. WEVD -FM WACO Waco, -FM New York, N.Y. Tex. WBNS Columbus, Ohio WCWM Williamsburg. Va. WEWO -FM Laurinburg. N.C. WACT -FM Tuscaloosa, Ala. WBOC -FM Salisbury, Md. WCWP Brookville. N. WACY Y. WEZY -FM Cocoa, Fla. -FM Moss Point, Miss. WBOE Cleveland. Ohio WDAC Lancaster, Pa. WFAA -FM Dallas, Tex. WAEBFM Cincinnati. Ohio WBON Milwaukee. Wis. WDAE -FM Tampa, Fla. WFAC WAEFFM WBOR Brunswick, Mt. Dora, Fla. Cincinnati, O. Maine WDAF -FM Kansas City, Mo. WFAH -FM Alliance, Ohio WAER Syracuse, N.Y. WBOS -FM Brookline, Mass. WDAO Dayton. Ohio WAEZ WFAN Washington, D.C. Miami Beach, Fla.(s) WBOWFM Terre Haute, Ind. WDAS -FM Philadelphia. Pa. WFAS -FM White Plains, N.Y. WAGR -FM Lumberton, N.C. WBPZFM Lock Haven. Pa. WDAY -FM Fargo. N. D. WFAU -FM Augusta. Maine WAGY -FM Forest City, N. C. WBRB -FM Mt. Clemens, Mich. WDBJ -FM Roanoke, Va. WAHR WFAW Fort Atkinson, Wis. Huntsville, Ala. (s) WBRC Birmingham. Ala. WDBL -FM Springfield, Tenn, WFBCFM Greenville, S.C. WAIC San Juan, P.R. WBRD -FM Bradenton, Fla. (s) WOBN Barberton, O. WFBE Flint, Mich. WAIR -FM Winston- Salem. N.C. WBRE -FM Wilkes- Barre, Pa. WDBO -FM Orlando. Fla. WFBG -FM Altoona, Pa. WAIV Indianapolis, Ind. WBRK -FM Pittsfield, Mass. WDBQFM Dubuque, Iowa WFBM -FM Indianapolis, Ind, WAJC Indianapolis, Ind. WBRN -FM Big Rapids. Mich. WDCX Buffalo. N.Y.(s) WFBS -FM Winston -Salem, N.C. WAJM Montgomery, Ala.(s) WBRU Providence. R.I. WDDE Hamden, Conn. WFCI Franklin, Ind. WAJP Joliet. Ill. WBSM -FM New Bedford. Mass. WODS -FM Syracuse, N.Y. W FCJ Miamisburg. Ohio WAJR -FM Morgantown, W.Va. WBST Muncie. Ind. WDEA -FM Ellsworth. Me. WFCR Amherst, Mass. WAKNFM Aiken, S.C. WBTFM Charlotte, N.C.(s) WD WFDR -FM Manchester. Ga. WAKO -FM Lawrenceville, Ill. WBTC -FM Houston. Mo. WDEC -FM Americus, Ga. (s) WFDSFM Baltimore. Md. WAKR -FM Akron, Ohio WBUDFM Trenton, N.J,(s) WDEE Hamden. Conn. WFFM Muskegon. Mich. WAKW -FM Cincinnati. Ohio WBUF Buffalo. N.Y. WDEF -FM Chattanooga. Tenn. WFHA -FM Red Bank. N.J. WALK-FM Patchogue. N.Y, WBUR Boston, Mass. WDEL -FM Wilmington, Del. WFHR -FM Wisconsin Rapids, Wis. WALL -FM Middletown, N. Y. WBUT -FM Butler. Pa. WDET -FM Detroit, Mich. WFID Rio Piedras. P.R.(s) WAMC Albany. N.Y. WBUYFM Lexington, N.C. WDFM State College. Pa. WFIG Sumter. S.C. WAMF Amherst, Mass. WBVA Woodbridge, Va. WDHA -FM Dover. WAMO N.J. WFILFM Philadelphia, Pa. -FM Pittsburgh, Pa. WBVP -FM Beaver Falls, Pa. WDHF Chicago, Ill. WFIN -FM Findlay, 0010(1) WAMUFM Washington. D.C. WBWC Berea. Ohio WDIF Buffalo. N.Y. WFIU Bloomington, Ind. WANG Goldwater, Mich. WBYM Bayamon, P.R. WWI( Atlanta, Ga. WFIW -FM Fairfield. III. WANYFM Albany. Ky. WBYO Boyertown, Pa.(s) WOJR Oil City, Pa, W F I Z Conneault, 0. WAOV -FM Vincennes. Ind. WBZ.FM Boston. Mass. WDKD -FM Kingstree. S.C. WFKO Kokomo, Ind. WAPC -FM Riverhead. N.Y.(s) WCAC Anderson. S.C. WDKN -FM Dickson. Tenn. WFLA -FM WCAO -FM Tampa, Fla. WAPI -FM Birmingham. Ala. Baltimore, Md. WDLB -FM Marshfield. Wis. WFLM Ft. Lauderdale, Fla. WAPL -FM Appleton. Wis. WCAR -FM Detroit, Mich. WDLP -FM Panama City, Fla. WCAS Knoxville, WFLN FM Philadelphia, Pa. WAPS Akron. Ohio Tenn. WDMB -FM Statesville, N.C. WFLO Farmville. Va. WAQE -FM Towson. Md.(s) WCAU -FM Philadelphia, Pa. WDMJ -FM Marquette. Mich. WARC Meadville. WCBC Catonsville, WFLT -FM Franklin, Tana. Pa. Md. WDMS -FM Lynchburg. Va. WFLW -FM Monticello. Ky. WARD-FM Johnstown, Pa. WCBE Columbus, Ohio WDNCFM Durham, N.C. WARK Little WCHL -FM Benton- WFLY Troy. N.Y. Rock. Ark. (s) Ky. WDOCFM Prestonsburg. Ky. WFMA Rocky Mount, N.C. WARN -FM Fort Pierce. Fla. WCBMFM Baltimore. Md. WOOD-FM Chattanooga. Tenn. Peru. WCBS -FM New WFMB Springfield. Ill. WARIIFM Ind. York, N.Y. WDOK -FM Cleveland. Ohio WFMD -FM Frederick, Md. WASAFM Havre De Grace. Md. WCBW Columbia. Ill. WDOLFM Athens. Ga. WASH Washington. WCCC -FM Hartford, W F M E Newark. N.J. D.C.(s) Conn. WDOR -FM Sturgeon Bay. Wis. WFMF Chicago. III. WASKFM Lafayette, Ind. WCCM -FM Lawrence, Mass. WDOV -FM WATH -FM WCCNFM Neillsville, Dover. Del. WFMG Gallatin. Tenn, Athens. O. Wis. WDRC -FM Hartford. Conn. WFMH -FM Cullman, Ala. WATR -FM Waterbury, Conn. WCCVFM Charlottesville, Va. WDRK -FM Greenville, Ohio WFM I Montgomery, Ala. WAUG -FM Augusta, Ga. WCEDFM Dubois, Pa. WDRM Darien. WAUK WCEFFM Parkersburg, Conn. WFMK Mt. Horeb, Wis. -FM Waukesha, Wis. W. Va. WORN Norwalk. Conn. WFML Washington, Ind. WAUP Akron. Ohio WCEN -FM Mt. Pleasant, Mich.(s) WDSC -FM Dillon. WAVA -FM Arlington. WCER.FM S.C. WFMM -FM Baltimore, Md. Va. Charlotte. Mich. WDSU -FM New Orleans. La. WF MS Indianapolis. Ind. WAVO -FM Atlanta, Ga. WCFM Williamstown, Mass. W DTM Detroit, Mich.(s) WFMT WAVUFM Albertville, WCHA -FM Chambersburg, Chicago. Ill.(s) Ala. Pa.(si WDTR Detroit. Mich. WFMU East Orange. N.J. WAVY -FM Portsmouth. Va. WCHO Detroit, Mich. WDUB Granville, Ohio WAWK -FM WCHK -FM Canton. WFMW -FM Madisonville, KY. Kendallville, Ind. Ga. WDUN -FM Gainesville, Ga.(s) WFMX Statesville. N.C. WAWR -FM Bowling Green, O. WCHN -FM Norwich, N.Y. WDUQ Pittsburgh. Pa. WAWZ -FM Zarephath, WCHS -FM Charlestown. W.Va. WFMZ Allentown. Pa. N.J. W DUX -FM Aberdeen. Wash. WFNC -FM Fayetteville, N.C. WAXO Kenosha. Wis. WCHO -FM Washington Court WDUZ -FM Green Bay, Wis. Minneapolis, House, WFNS -FM Burlington, N.C. WAYL Minn. (s) O. WDVR Philadelphia. Pa. WFNY Racine. Wis. WAYZ -FM Waynesboro, Pa. WCKW La Place, La. WDWS -FM Champaign, WAIL -FM Hazelton, WCLE -FM Ill. WFOBFM Fostoria, Ohio Pa. Cleveland. Tenn. WDXE -FM Lawrenceburg. Tenn. WFOL Hamilton, Ohiols) WAZY -FM Lafayette, Ind. WCLI -FM Corning. N.Y. WDXL -FM Lexington. Tenn. WBAA -FM W. Lafayette, WCLM Chicago. WFOS South Norfolk, Va. Ind. Ill. WEAFFM Philadelphia, Pa. WFOY -FM St. Augustine. Fla. WBAB -FM Babylon, N.Y. WCLO -FM Janesville. Wis. WEAS -FM Savannah. WBAI New York. N.Y. WCLT -FM Ga. WFPG Atlantic City, N.J. Newark, Ohio WEAU -FM Eau Claire. Wis. WFPK Louisville, Ky. WBAL -FM Baltimore. Md. WCLV Cleveland, 0.(s) WEAV -FM Plattsburgh. N.Y. WBAP -FM Ft. Worth. Tex.(s) WCLW -FM Mansfield- WFPL Louisville, Ky. Ohio WEAWFM Evanston, III. WFOM San Juan, P.R. WBAY Green Bay. Wis.(s) WCMCFM Wildwood, N.J. WEBH Chicago, III. WFRB -FM Frostburg. WBBB -FM Burlington, N.C.(s) WCMBFM Harrisburg. Pa. Md. WEBL Jacksonville, Fla. WFRE -FM Fresno. Cal. WBBF -FM Rochester, N.Y. WCME -FM Brunswick, Maine WEBQ -FM Harrisburg, WBBM -FM Chicago. WCMF -FM Rochester, Ill. WFRL -FM Freeport, Ill. Ill. N.Y.(s) WEBRFM Buffalo, N.Y. WFROFM Fremont, Ohio WBBOFM Forest City, N.C. WCMIFM Ashland. Ky. WECI Richmond, Ind. Franklin. WBBQ -FM Augusta. Ga. WCMN -FM Arecibo. WFSCFM N. C. P.R. WECW Elmira. N.Y. WFST -FM Caribou. Maine WBBR -FM E. St. Louis. Ill, WCMO Marietta, Ohio WBBW -FM WEDA -FM Grove City. Pa. WFSU -FM Tallahassee, Fla. Youngstown. Ohio (s) WCMSFM Norfolk, Va. WEDR -FM Miami. Fla, WBCAFM Bay Minette, Ala. WFTL -FM Ft. Lauderdale, Fla. WCMUFM Mt. Pleasant, Mich, WEEC Springfield, Ohio WFTM -FM Maysville, Ky. 108 RADIO -TV EXPERIMENTER C.L. Location C.L. Location C.L. Location C.L. Location Lancaster. Ohio WJRH Ea,ton, Pa. WLOBFM Portland, Maine WF1 WFM Ft. Walton Beach, WHOKFM KY. Fla. WHOM -FM New York. N.Y. WJSCFM Wilbertoree, Ohio W LOC -F M Muntordvillo. Orlando, Fla.(e) WJS1 Peoria, Ill. WLOEFM Leaksville, N.C. WFUL -FM Fulton. Ky. WHOO.FM WLOI -FM La Porte. Ind, WFUR -FM Grand Rapids. Mleh. WHOP -FM Hopkinsville, Ky. WJSM Martinsburg. Pa. Jamestown. N.Y. WLOL -FM Minneapolis, Minn, WFUV New York. N.Y. WHOS -FM Decatur. Ala. WJTNFft Tenn. WFVA -FM Fredericksburg, Va. WHOV Hampton, Va. WJVA.FM South Bend. Ind. WLOM Chattanooga, WJW -FM Cleveland. Ohio WLOQ Winter Park. Fla. WFYC -FM Alma. Mich. WHP -FM Harrisburg. Pa. Asheville. N.C. WGALFM Lancaster. Pa. WHPEFM High Point. N.C. WJZZ Bridgeport, Conn. WLOS -FM Winchester. Va. WKAI -Fie MaComb. Ill. WLOV Cranston, K.1. WGARFM Cleveland, Ohio WHPLFM WLPOFM La Salle. Ill. WGAU -FM Athens. Ga.(s) WHPR Highland Park, Mich. WKAK Kankakee, III. W KA(1-Fel San Juan. P.R. WLPR Mobile. Ala. (s) WGAY Washington. D.C. WHPS High Point. N.C. WLRS Louisville, Ky. WGBE -FM Columbus. Ga. WHRB -FM Cambridge. Mass. WKAR -FM E. Lansing, Mich. Wis. WKAT -FM Miami, Fla. WLRJ Roanoke. Va. WGBH -FM Cambridge. Mass.(s) WHRM Wausau. WLRW Champaign. Ill. WGBI -FM Scranton. Pa. WHSA Highland Tap., Wis. W KAY -F M Glasgow. Ky. Alpena. Mich. WKAZ -FM Charleston. W.Va. WLS -FM Chicago. III. WGBS -FM Miami. Fla. WHSB WLTA -FM Atlanta. Ga.(s) WGCB -FM Red Lion. Pa. (s) WHSR -FM Winchester, Mass. WKBC -Frl N. Wilkesboro. N.C. Milan. Tenn. WLUV-FM Loves Park, 111,(6) WGCS Goshen, Ind. W HSYFM Hattiesburg. Miss. WKBJFM Ky. WHTC Holland. Mich. W KBLF M Covington. Tema. WLVL Louisville. WGEEFM Indianapolis, Ind. -FM WLVP Franklin. N. J. WGEM -FM Quincy. 111(5) WHTC. -FM Eatontown, N.J. WKBN -FM Youngstown. Ohio WKBRFM Manchester, N.H. WLYC -FM Williamsport, Pa. WGET -FM Gettysburg. Pa. WHUB -FM Cookeville. Tenn. WLYMFM Lynn. Mass. WGEV Beaver Falls. Pa. WHUS Storrs, Conn. WKBV -FM Richmond, Ind. WKCQ Berlin. N.H. W MAI -FM Panama City, Fla. WGFM Schenectady. N.Y. (s) W H W C Colfax, Wis. WMAJ-FM State College, Pa. WGGC Glasgow. Ky. WHYL -FM Carlisle, Pa. W KCRF N New York, N.Y. Mass. WKCS Knoxville. Tenn. WMAL -FM Washington, WGGM Taylorville, Ill. WHYN -FM Springfield, D. C. (s) WIAC -FM San Juan, P. R. (s) WKDNFM Camden. N.J. WGHFM Newport News, Va. W.Va. WMAQ -FM Chicago. 111.(6) W G H F Brookfield. Conn. (s) WIAL Eau Claire. Wis. WKEE -FM Huntington. W KET.FA Kettering. Ohmis) WMAS -FM Springfield. Mass. WUHQ -FM Kingston. N.Y. WIAMFM Williamston. N.C. WMAZ -FM Macon, Ga. WG1G -FM Brunswick. Ga. WIAN Indianapolis. Ind. WKEU -FM Griffin. (.a. WKEYFM Covington. Va. WMBDFM Peoria, III. WGIRFM Manchester, N. H. WIBA -FM Madison. Wis. Chicago, III. Indianapolis. Ind. W KFM Chicago, III.(s) WMBIFM WG KA -FM Atlanta. fa. WIBCFM Mich. WMBM Miami Beach. Fla. Wt,LBFM Port Washington, Wis. W IBEFM Jenkintown. Pa. W KFR -FM Battle Creek. Mich. WKHM -FM Jackson. Mich. WMBNFM Petoskey. WGLCFM Mendota. Ill. WIBG -FM Philadelphia, Pa. WMBO -FM Auburn, N.Y. WGLM Richmond, Ind. WIBMFM Jackson. Mich. WKIC -FM Hazard. Ky. WKIP -FM Poughkeepsie. N.Y. WMCFM Memphis. Tenn. WGLS -FM Glassboro. N. J. WIBW -FM Topeka. Kan. (s) WICB Ithaca, N.Y. WKIS -FM Orlando. Fla. WMCF Stuart. Fla. WGLT Normal Ill. N.C. WMCO New Concord. Ohio W GMR Tyrone. Pa. WICR Ind,anapolis.Ind. WKIX -Fil Raleigh, -FM -Fa Key West. Fla. WM00FM Fajardo. P. R. WGMS -FM Washington, D.C. WIFI Philadelphia, Pa. (s) WKIZ N.C.(s) Ind. WKJBFN Mayaguez. P. R. WMDE Greensboro, WG MI Flint. Mich.Is) WIFN Franklin. WMEB -FM Orono. Maine Fla. WIKY -FM Evansville, Ind. WKJF Pi tsburgh, Pa.(s) WGNB St. Petersburg. WKJGFN Ft. Wayne. Ind. WMER Celina. Ohio W(.NCFM Gastonia. N.C. WIL -FM St. Louis, Mo. Marion. Va. -FM Cambridge. O. WKKO -FM Aurora. Ill. WMEVFM WGNU -FM Madison. III. WILE F M Ala. WKKYF M Erlanger. Ky. W M C -F Monroeville, WGOV -FM Valdosta. Ga. WILL -FM Urbana, Ill. Daytona Beach, Fla. W Frankfort. Ind. WKLC -Fis St. Albans. W.Va. WMFJ.FM WGPAFM Bethlehem. Pa. ILO-FM WMFM Madison. Wis. (from Ga.) WI LSFM Lansing. Mich. W KLFFrd Clanton, Ala. WIMA -FM Lima, Ohio W KLS M.rietla. Ga. WMFP Ft. Lauderdale, Fla. WGPC -FM Albany. Ca. Is) W MFRFM High Point. N.C. WGPM Detroit, Mich. W INA F M Charlottesville, Va. WKLW.FM Grand Rapids, MIA. Kenmore. N.Y. WKMHFM Dearborn, Mich. WM(.M Atlantic City. N.J. WGPR Detroit. Mich.(s) WINE-FM WM(.WFM Meadville, Pa. WGPS Greensboro, N.C. WINK -FM Ft. Myers, Fla. W KMIFIl Kalamazoo, Mich. Haven. Fla. WKMO Kikomo. Ind. WMHC South Hadley, Mass. WI.R -FM Buffalo. N.Y. WINT -FM Winter WMHE Toledo, Ohio WGRE Greencastle. Ind. WINZ -FM Miami, Fla. WKNA Charleston. W.Va.(s) Fla. WKNEF A Keene. N.H. WMIL -FM Milwaukee, Wis. WGRN Greenville. III. WIOD -FM Miami. WM IT Black Mountain.N.C. WGRP -FM Greenville. Pa. WIP -FM Philadelphia. Pa. WKNT -FM Kent. O. W KOF H ipkinsville, Ky. WMIV S. Bristol. N.Y. WGRV -FM Greeneville. Tenn. WIPR -FM San Juan, P.R. WMIX -FM Mt. Vernon, III. N.Y. WIRAFM Ft. Pierce, Fla. WKOK -FM Sunbury. Pa. WGSMFM Babylon. WKOP -FM Binghamton. N.Y. WMJR Ft. Lauderdale. Fla. WGSU Genesen. N.Y. WIRC.FM Hickory. N. C. (s) Tenn. W KOXF it Framingham. Mass. W M KC Oshkosh, Wis. WGTB -FM Washington. D.C. W IRJ -FM Humboldt. WMKY -FM Morehead. Ky. Park. Md. WISA -FM Isabela. P.R. W KOZ -Fil Kosciusko. Miss. WGTS -FM Takoma WKPTFM Kingsport. Tenn.(s) WMLS.FM Sylacauga. Ala. WGLC Cincinnati, Ohio WIRQ Rochester. N.Y. WMLW Milwaukee. Wis. WGVE Gary. Ind. WISHFM Indianapolis, Ind.(s) WKRCFal Cincinnati, Ohio (s) Madison. Wis.(s) W KRG -FM Mobile. Ala. WMMB -FM Melbourne. Fla. WGWR -FM Asheboro, N.C. WISM -FM W MMM Westport. Conn. WGYA Interlochen. Mich. WISH -FM Milwaukee, Wis. W K RT -F A Cortland. N.Y. -FM N.C. WKSN -FM Jamestown, N. Y. WMNA -FM Gretna. Va. WHAFM Madison. Wis. WIST Charlotte. WMNBFM North Adams, Mass. WHAD Delaneld. Wis. WISU Terre Haute. Ind. WKSUFA Kent, Ohio Md. WKTA Mf Kenzie. Tenn. (s) WHAG -FM Halfway. Md. (s) WISZ -FM Glen Burnie. WMNI -FM Columbus, Ohlo WHAIFM Greenfleld.Mass. WITAFM San Juan, P.R. WKTL Stuthers. O. N Charleston. S.C. WMOA -FM Marietta, O. WHATF M Philadelphia. Pa. (s) WITH -FM Baltimore. Md. WKTM W KTM -F cl Mayfield. Ky.(s) WMOP -FM Ocala. Fla. WHAVFM Haverhill. Mass. WITN -FM Washington. N. C. KY. -FM Jasper, Ind. WKTN -FH Kenton. O. WMOR -FM Morehead. WHBBFM Selma. Ala. WITZ WMOU -FM Berlin. N.H. WHBC -FM Canton, Ohio WIUS Christiansted, V.I. W KTZFN Jacksonville. Flu.(s) -FM Cnstiansted, WKUZ Wabash. Ind. WMPLFM Hancock. Mich, WHBFFM Rock Island, 111.(6) WIVI WMPSFM Memphis. Tenn. WHBI Newark. N.J. St. Croix. V. I. WKWK -FM Wheeling, W.Va. Tenn. WK XI Snyrna. (',a. WMRF -FM Lewistown. Pa. WHBM -FM Xenia. Ohio WIVK -FM Knoxville. WMRI -FM Marion. Ind. WHCI Hartford City, Ind. WIVY -FM Jacksonville, Fla. WKYXF d Paducah. Ky. WLACFb Nashville, Tenn. WMRN -FM Marion, Ohio WHCL -FM Clinton. N.Y. WIXN.FM Dixon. Ill. WMROFM Aurora. III. WHCN Hartford. Conn. WIZR -FM Johnstown. N.Y. WLADFM Danbury, Conn. WLAE Hi rtford. WMRP -Fol Flint. Mich. WHCU -FM Ithaca. N.Y. W IZZ F M Streator. Ill. Conn. WMSH -FM Elizabethtown. Pa., WHDH -FM Boston. Mass. WJACFM Johnstown. Pa. WLAC -FM LaGrange. Ga. -F11 Lancaster. Pa. W MSP Harrisburg, Pa. WHDL -FM Allegheny. N.Y. WJAS -FM Pittsburgh, Pa. WLAN Manchester, Tenn. Jacksonville, Fla. WLAPFM Lexington. Ky. WMSR -FM WH EBF M Portsmouth. N.H. WJAX -FM WMTFM Cedar Rapids, Iowa (s) WHEN -FM Syracuse. N.Y. WIAZ Albany. fa. WLAT -Fh Conway. S.C. WLAV -FM Grand Rapids. Mleh. WMTH Park Ridge. III. WHFB -FM Benton Harbor. Mich. WJBC -FM Bloomington, III. Va. W LAY -F re Muscle Shoals. Ala. WMTI Norfolk. WHFH Flossmoor. Ill. WJB1 Cincinnati. Ohio WMTM -Fol Moultrie, Ga. WHFI Birmingham. Mich. WJBK -FM Detroit. Mich. WLBA -Fa Gainesville. Ga. WJBL -FM Holland. Mich. WLBBFal Carrollton. Ca. WMTNIM Morristown. Tex.(s) W H F M Rochester. N.Y. W MTW.FM WH FS Bethesda. Md.(s) WJBO -FM Baton Rouge. La. WLBG -Fa Laurens-Clinton. S.C. Del. WLBHFrl Mattoon. III. Mt. Washington. N.H.(s) W HH I Highland. Wis. WiRR Wilmington. Amherst. Mass. Pa. WJCD -FM Seymour. Ind. WLBJFM Bowling Green. Ky. WMUA WHHS Havertown, W M U B Oxford. Ohio WHHYFM Montgomery. Ala. W CWFM Johnson City. Tenn. WLRK -FM DeKalb. III. Miss. WLBR -FM Lebanon. Pa. WMUH Allentowh, Pa. WHIL -FM Medford. Mass. WJDX -FM Jackson. WMUK Kalamazoo. Mich. WHIM -FM Providence, R.I. W)EF -FM Grand Mids.. Mich.tn) WLCM -Fh Lancaster. S.C. WJhH -FM Gallipolis, Ohio WLOM O:k Park. Mich.(s) WMUL Huntington, W.Va. WMIO -Fat Dayton. Ohio WMUN Muncie, Ind. WHIZFM Zanesville, Ohio WJEJ.FM Hagerstown. Md. WU/Ft-FR Traverse City. Mich. WLDSFN Jacksonville. Ill. WMUUF M Greenville. S. C. Is) W HJB Grernahw g. Pa. W)ET -FM Erie. Pa. WMUZ Detroit. Mich. W H K -F M Cleveland. Ohio WIGS Houghton. Mich, WLEC -F Sandusky, Ohio WLEN Adrian, Mich. WMVA -FM Martinsville, Va,(s) WHIP- F M Hendersonville, N.C. WJHLFM Johnson City. Tenn. Millville, N.J. F M Tullahoma. Tenn. (s) WLEO -FN Ponce. P. R. WMVB -FM WH KW Chilton, Wis. W 11((. WMVGFM Milledgeville. Ga. WH KY-FM Hickory. N. C. (sl WJIMFM Lansing. Mich. WLET -F Toccoa. Ga. WLFM Atpleton Wis. WMVO.FM Mount Vernon, Ohio WHLA Hof WJIV Cherry Valley. N.Y. Sidney. Ohio WHLD -FM Niagara Falls, N. Y. WJII Albany. Ga. WLGN.F1, Logan. 0, WMVR -FM New N.Y. WMYB -FM Myrtle Beach. Fla. WH LI. F M Soot), Boston. Va. WJJD -FM Chicago. III. WLIB -FM York. Park. WLIN Oat tilt Mich. WMYRFM Ft. Myers. Fla. WHLI -Fol Hempstead. N.Y. WJLK -FM Asbury N.J. Okla. WHLM -FM Bloomsburg. Pa. WJLN Birmingham. Ala. WLIP -FM Kenosha. Wis. WNAD -FM Norman. WLIR Hic csville. N.Y.(s) W NAM -FM Neenah-Menasha. WHLS -FM Port Huron. Mich. WJMCFM Rice Lake. Wis. Wis. WHLT.FM Huntington. Intl. W1MO Bethesda. Md.(s) W LI V-F M Livingston. Tenn. WHMA -FM Anniston. Ala. WJMK Plainfield. Ind. WLJC Beaityville. Ky. WNAS New Albany. Ind. Petoskey. Mich. WLKR -Fie Norwalk. Ohio WNAV -FM Annapolis. Md WHMD Marinette. Wis. WJML New York. N.Y. WHME South Bend. Ind. WJMX -FM Florence. S.C. WLLHFR Lowell. Mass. WNBCFM N. WLMC 0keehobee. Fla. WNBD -FM Daytona Beach, Fla. WHMPFM Northampton. Mass. WINO -FM Jacksonville. C. Binghamton. N.Y. WHNCFat Henderson, N.C. WJOF Athens. Ala. WLNAFle Peekskill. N.Y. WNBF.FM N H. WNBH -FM New Bedford. Mass. W Tenn. WJOL -FM Joliet. Ill. WLNHFP Laconia. HNR McMinnville. WNBX Andalusia. Ala. WHO -FM Des Moines. Iowa WJOYFM Burlington. Vt. WLNO Loi don. Ohio WNCN New York, N.Y. WHOD -FM Jackson. Ala. WJPAFM Washington. Pa. WLNR -FN Lansing. Ill. WHOH Hamilton, Ohio WJR -FM Detroit, Mich. WLOAFM Braddock. Pa,(s) WNCO -FM Ashland. Ohio

JUNE-JULY, 1966 109 WHITE'S G.L. Location C.L. Location C.L. Location WPJBFM Providence. R.I. WSAUFM Wausau, Wis. WTESFM Buffalo. N.Y. WPKEFM Pikeville. Ky. WSB -FM Atlanta. Ga.(s) WTSR Trenton. N.J. WPKM Tampa, Fla. WSBAFM York, Pa. WTSV -FM Claremont, N.H. MD00 WPLB Greenville, Mich. WSBC Chicago, 111.(x) -FM WTTC -FM Towanda, Pa. WPLMFM Plymouth. Mass. WSBF -FM Clemson, S.C. WTTFFM Tiffin, Ohio WPLN Nashville, Tenn. WSCB Springfield, Mass. WTTM.F M Trenton, N.J. WPLO -FM Atlanta, Ga. WSCI -FM Platteville, Wis. WTTNFM Watertown. Wis. ao@ WPMP -FM Pascagoula. Miss. WSCT -FM Berkeley Springs, W.V. WTTR -FM Westminster, Md. WPPA.FM Pottsville, Pa, WSDM Chicago, III. WTTVFM Bloomington, Ind. WPRB Princeton. N.J. WSEB Sebring. Fla. WTVNFM Columbus, Ohio C.L. Location WPRK Winter Park. Fla. WSEI Olney. III. WUAG Greensboro, N. C. WPRM San Juan, P.R. WSEL -FM Pontotoc. Miss. WUCBFM Chicago, Ill. WNCTFM Greenville. N.C. WPRO -FM Providence. R.I. WSEV W NDA Huntsville. Ala.(s) -FM Sieverville, Tenn. Is) WUFM Utica. N.Y.(s) WPRSFM Paris. Ill. WSFCFM Somerset, KY. WUHY.FM Philadelphia, Pa. WNDUFM South Bend, Ind. WPRWFM Manassas. Va. WNDY Crawfordsville, Ind. WSFM Birmingham, Ala,(s) WULX -FM Richmond, Ind, WPSR Evansville, Ind. WSHS Floral Park, N.Y. WUNC WNEMF M Bay City. Mich. (s) Chapel Hill, N.C. WPTF -FM Raleigh. N.C. WSHU Fairfield, Conn. WUNH Durham, N.H. WNESFM Central City, Ky. WPTH Fort Wayne, Ind. (s) WNEW -FM New York. N.Y. WSIDFM Baltimore, Md. WUOA Tuscaloosa, Ala. WPTNFM Crookeville. Tenn. WSIM -FM Salem. Ind. WUOM Ann Arbor, Mich. WNEXFM Macon, Ga. WPTWFM Piqua. Ohio WNFM Naples, Fla. WSIPFM Painesville, Ky. WUOT Knoxville. Tenn. WPWT Philadelphia. Pa. WSIU Carbondale. III. WUPY Lynn, Mass.(s) WNFO -FM Nashville. Tenn.(s) WQAL Philadelphia, Pa.(s) WNGO Mayfield, WSIV -FM Pekin, III. W USC -FM Columbia, S.C. -FM Ky. WQDCFM Midland. Mich.(s) WSI X -FM Nashville, WNHC -FM New Haven, Tenn. (s) WUSF Tampa, Fla. Conn. WQFM Milwaukee. Wis. WSJG Hallandale, Fla. WUST -FM Bethesda. Md. WNIB Chicago, Ill. WQI K -FM Jacksonville, WNIC DeKalb, III. Fla. WSJS -FM Winston -Salem, N.C. WUSV Scranton. Pa, WQMF Babylon. N.Y.fs) WSKS Wabash, Ind. WUWM Milwaukee, Wis. WNIK -FM Arecibo, P. R. WQMG Greensboro, N.C. WNNJ -FM Newton. WSLI -FM Jackson, Miss. W VAF -FM Charleston. N.J. WQMS Hamilton, Ohio WSLN Delaware, WNNR -FM New Orleans, La. Ohio W. Va. (s) WURBFM Pittsfield, Mass. WSLS -FM Roanoke. Va, WVAM -FM Altoona, Pa. WNOB Cleveland. Ohio (s) WQRSFM Detroit, Mich. WNOF St. Paul, Minn. WSLU Canton, N.Y. WVBR -FM Ithaca, N.Y. WOST Forest, Miss. WSMC -FM Collegedale, Tenn. WVBU -FM Lewisbury, Pa. WNOK -FM High Point, N.C. WQXI.FM Atlanta. Ga. WNOR -FM Norfolk. Va. WSMDFM Waldorf, Md. WVCA- FM Gloucester. Mass. WQXR -FM New York. N.Y. WSMI -FM Litchfield, Ill. WVCGFM Coral Gables, Fla.(s) WNOSFM High Point. N.C. WRAD -FM Radford, Va, WSW' Greenfield, WVEC WNOWFM York, Pa. Ind. -FM Hampton, Va. WRAJ -FM Anna. Ill. WSMT -FM Sparta, Tenn. W V EM Springfield, III. WNRE Circleville. Ohio WRAK -FM Williamsport, Pa. WSNJ WNRG -FM Grundy, Va. -FM Bridgeton, N.J. WVFM Lakeland, Fla. WRALFM Raleigh. N.C. WSOC -FM Charlotte, N.C. WVGR -FM Grand Rapids, Mleh. WNSL -FM Laurel, Miss. WRAY -FM Princeton, WMTH Winnetka, Ind. WSOM -FM Salem, Ohio WVHC Hempstead, N.Y, Ill. WRBLFM Columbus. Ga. WSONFM Henderson, Ky, WVHI Evansville, Ind. WNTI Hackettstown, N.J. WRBS Baltimore, Md, WNTL Memphis. Tenn. WSOU S. Orange, N.J. WVIC -FM E. Lansing, Mich. WRC -FM Washington. D.C. WSOY -FM Decatur, Ill. WVIP -FM Mount Kisco, N.Y. WNUR Evanston. 111. WRCOFM Richland Center. Wis. WNUSFM Chicago, Ill. (s) WSPA -FM Spartanburg, S.C.(s) WVIS Terre Haute- Ind. WRCP -FM Philadelphia, Pa. WSPBFM Sarasota. Fla. WVJS -FM Owensboro, Ky. WNWC -FM Arlington Hts., 111. WREC WNXT -FM Portsmouth, -FM Memphis, Tenn. WSPD -FM Toledo, Ohio WVKC -FM Galesburg, Ill. O. WRED Youngstown,Ohlo WSPE Springville, N.Y. WVICO -FM Columbus, Ohio WNYC -FM New York. N.Y. WREK Woodstock- WNYE New York, N.Y. Ill. WSPT -FM Stevens Point, Wis. WVLK -FM Lexington. Ky.(s) W REO -FM Ashtabula, Ohio W WOAK Royal Oak. Mich. SRC -FM Durham, N. C, WVLR Sauk City, Wis. -FM WRFOFM Worthington. WSRS Worchester, Mass. WVMC -FM Mt. Carmel, Ill. WOAP Owosso. Minh. Columbus, Ohio WOAYFM Oak W.Va. WSRWFM Hillsboro, Ohio WVMI -FM Biloxi. Miss. Hill. WRFK Richmond. Va. WSSU Superior, Wis, WVNA -FM Tuseumbia, Ala. WOBN Westerville, Ohio WRFL Winchester, Va. WOBTFM Rhinelander, Wis. WSTC -FM Stamford, Conn. WVNJFM Newark, N.J. WRFM New York. N.Y. WSTM St. Mathews, KY. WVNO -FM Mansfield. Ohio(s) WOC -FM Davenport, Iowa WRFS -FM Alexander City, Ala. WOCBFM W. Yarmouth, Mass. WSTO Owensboro. Ky. (s) WVOR Rochester, N.Y. WRFY -FM Reading. Pa. WSTP -FM Salisbury, N.C. Liberty. WOCH -FM North Vernon. Ind. - WVOSFM N.Y. WRGA -FM Rome, Ga. WSTR -FM Sturgis, Mich. WVOTFM Wilson, N.C. WODL -FM Carbondale. Pa. WRHS Park Forest, III. WOHS -FM Shelby, N.C. WSTU -FM Stuart. Fla. WVOXFM New Rochelle. N.Y. WRIG -FM Wausau, Wis. WSTV -FM Steubenville, Ohio WVOZFM Carolina, P. R. WOI -FM Ames, Iowa WRIPFM Rossville, Ga. WSUP Wis. WOIV De Ruyter, N.Y. Platteville, WVPO -FM Stroudsburg, Pa. WRIT -FM Milwaukee, Wis. WSUW Whitewater, Wis, WVQM Huntington, W.Va. WOKZ -FM Alton. Ill. WRIU Kingston, R. I. Washington. WSVA -FM Harrisonburg, Va. WVSC.FM Somerset, Pa. WOL -FM D.C. WR1N -FM Racine. Wis. WSVB Tamaqua, Pa. WOLA San Juan. P.R. WVSH Huntington, Ind. WRJR Lewiston. Maine WSVL -FM Shelbyville, Ind. WVST St, Petersburg, Fla, WOLI Ottawa, Ill. WRKB -FM Kannapolis, N.C. WSVS WOMC Royal Oak. Mich.(s) -FM Crewe, Va. WVTS Terre Haute, Ind.(a) WRKO -FM Boston, Mass. WSWG Greenwood, Miss. WVUD -FM Kettering. Ohio WOMI -FM Owensboro, Ky. WRKT -FM Cocoa Beath, Fla.(s) WSWM WOMP -FM Bellaire, Ohio East Lansing, Mich.(s) WVVV Blacksburg. Va. WRLB Long Branch, N.J.(s) WSWN -FM Belle Glade. Fla. WVWO.FM Cheyenne, Wyo. WON E -FM Dayton, O. WRLC Palmyre, Pa. WONO -FM Syracuse. N. Y. (s) WSWW -FM Platteville, Wis. WWBDFM Bamberg, S.C. WRLDFM Lanett, Ala, WSYR -FM Syracuse, N.Y.(s) WWCF Greenfield. Wis. WOOD-FM WRLM N. Attleboro, Mass, Grand Rapids. Mich.(s) WTAB -FM Tabor City. N. C. W WCOFM Waterbury. Conn. WRMI.FM Morris, III. WTAD -FM Quincy, III. WWDC -FM Washington. D.C. WOOF-FM Dothan. Ala. (s) WRMN -FM Elgin, III. WTAP -FM Parkersburg, WOPAFM Oak Park, Ill. W. Va. WWDL -FM Scranton, Pa. (s) W RN1 Atlantic City, N.J. WTAR Norfolk, Va.(s) W W DL Scranton, Pa. (s) WOPI -FM Bristol, Tenn. WRNL -FM Richmond. Va. WORFM New York. N.Y. WTAS Crete, Ill. WWGP -FM Sanford, N.C. WRNW Mount Kisco, N.Y. WTAW -FM College Station. Tex. WWHC Hartford City. Ind. WORA.FM Mayaguez. P.R. WROAFM Gulfport. Miss. WORM -FM Savannah, Tenn. WTAXFM Springfield, Ill. (s) WWHG -FM Hornell, N.Y. WROC -FM Rochester. N.Y. WTAYFM Robinson, Ill. WWHI Muncie, Ind. WORX -FM Madison. Ind. WROK -FM Rockford. III. WOSC -FM Fulton. N.Y. WTBC -FM Tuscaloosa. Ala. WWHO Jackson, Miss. WROM -FM Rome. Ga. WTBO -FM Cumberland. Md. WWIL -FM Ft. Lauderdale, Fla. WOSE Oswego. N. Y. WROWFM Albany. N.Y. WOSU -FM Columbus, WTBS Cambridge, Mass. WW1 -FM Detroit, Mich. Ohio WROY -FM Carmi, Ill. WTCA -FM Plymouth, Ind. WWJC -FM Superior. Wis, WOTW FM Nashua, N.H. WRPI Troy, N.Y. WOUB -FM Athens. Ohio WTCH -FM Shawano, Wis, W W KS Macomb, III. WRPMFM Poplarville, Miss. WTCMFM Traverse City, Mich. W W LA La Crosse, Wis. WOW -FM Omaha. Nebr. WRPN -FM Ripon, WIs. WOXR Oxford. WTCO -FM Campellsville, Ky, WWMO Reidsville. N.C. Ohio WRRFM Dallas. Tex. (s) WTCW WOYE -FM Mayaguez, P. R. -FM Whitesburg, Ky. W W MT New Orleans, La. (a) WRRH Franklin Lakes, N.J. WTCX St. Petersburg, Fla.(s) WWOD -FM Lynchburg, Va. WPAA Andover, Mass. WRRN Warren, Pa. WPAB -FM Ponce, P. R. WTDS Toledo. Ohio WWOG Boca Raton, Fla. WRRZ -FM Clinton, N.C. WTFM Lake Success, N.Y.(s) WWOL -FM Buffalo, N.Y. WPAC -FM Patchogue, N.Y.(s) WRSA Decatur, Ala. WPADFM Paducah. Ky. WTGI Hammond. La. WWOM -FM New Orleans, La. W RSC F M State College. Pa. WTHIFM Terre Haute, Ind. WWON -FM Woonsocket, R.I. WPATFM Paterson. N. 1. (s) WRS1 -FM Bayamon. P.R. WPAY -FM Portsmouth, WTHS Miami. Fla. WWOS Palm Beach, Fla. Ohio (s) W RSV Skokie, Ill. WTICFM Hartford. Conn.(s) WWPB Miami, Fla.(s) WPBC -FM Richfield, Minn. (s) WRSE -FM Elmhurst, III. WPBF W. Palm Beach. Fla. WTIO Charleston. W. Va. WWST -FM Wooster. Ohio WRS1 -FM Bayamon, P. R. WTJS -FM Jackson, Tenn. WWSWFM Pittsburgh. Pa. WPBS Philadelphia, Pa. WRSW -FM Warsaw. WPBS Philadelphia, Ind. WTJU Charlottesville, Va. WWTV -FM Cadillac. Mich. Pa. (s) W RTC -FM Hartford, Conn. WTLN.FM Maitland, Fla. WWVAFM Wheeling. W.Va. WPEA Exeter. N.H. WRTI -FM Philadelphia, Pa. WPELFM Montrose, Pa. WTMA -FM Charleston. S.C. W W WS Greenville. N.C. WRUF -FM Gainesville. Fla. WTMBFM Tomah, Wis. WWYN.FM Erie. Pa. (s) WPEN -FM Philadelphia- Pa. WRUNFM Utica. N.Y. WPEX -FM Pensacola. Fla.(s) WTM1 -FM Milwaukee, Wis.(s) WXAX Elkhart. Ind. WRUS -FM Russellville, Ky. WTNC -FM Thomasville, N.C. WXBM -FM Milton, Fla. WPFBFM Middletown, Ohio (s) WRUV Burlington, Vt. WPFK Los Angeles, Cal. WTOA Trenton, N.1. WXBR Cocoa Beach. Fla. WRVA -FM Richmond, Va. WTOC -FM Savannah. Ga. WXEL Louisville, Ky, WPFM Providence, R.I.(s) WRVBFM Madison, Wis. WPFR Terre Haute, Ind. WTODFM Toledo, Ohio WXF.N -FM Cleveland. Ohio WRVC Norfolk, Va. WTOF Canton, Ohlo WXFM Elmwood Park, III. WPGC Bradbury Hts., Md. WRVG Georgetown, Ky. WPGFFM Burgaw, N.C. WTOL -FM Toledo, Ohio WXHRFM Boston. Mass. WRVP New York, N.Y. WTOP -FM Washington, D.C. WXLI -FM Dublin, Ga. WPGI Pittsburgh. Pa. WRWR Port Clinton- Ohio(a) WPGU Urbana. Ill. WTOS Wauwatosa, Wis. WXPN Philadelphia, Pa. WRXO -FM Roxboro, N.C. WTOT -FM Marianna, Fla. WXQRFM Jacksonville. N. C. WPHD Norfolk, Va. WRYT -FM Pittsburgh. Pa. WTPA -FM Harrisburg. Pa. WXRA Woodbridge. Va. WPHS Warren, Mich. WSAB Mt. Carmel, Ill. WTRC -FM Elkhart. Ind. WXRF -FM Guayama. P. R. WPIC -FM Sharon. Pa. WSAC -FM Ft. Knox, Ky. WTRE Greensburg. Ind. WXRI Norfolk. Va. WPIN -FM St. Petersburg. Fla. WSAE Spring Arbor, Mich. WTRF -FM Wheeling, W,Va, WXTC Annapolis. Md. WPITFM Pittsburgh, Pa. WSAL -FM Logansport. Ind. WTRW -FM Two Rivers. Wis. WXTO -FM Grand Rapids, Mich. WPIX -FM New York, N. Y. WSAMFM Saginaw. Mich. WTSB.FM Lumberton, N.C. WXUR -FM Media, Pa.

110 RADIO -TV EXPERIMENTER C.L. Location C.L. Location C.L. Location C.L. Location WXYW Suffolk. Va. WYCA Hammond. Ind. WYFM Charlotte. N.C. WYZZ W,IkesBarre, Pa. WXYZFM Detroit. Mich. WYCE Warwick. R.I. WYFS WinstonSalem. N.C. WZAK Cleveland. 0. WYAK Sarasota. Fla.(s) WYCR York -Hanover. Pa. WYNRFM Brunswick. Ga. WZEP -FM DeFuniak, Haven. Conn. WYCS Yorktown. Va. WYON Grand Rapids. Mich. Springs. Fla. WYBCFM New -FM Ohio New Haven. WY F E Lansing. Mich. WYSL -FM Buhalo. N.Y. WZIP Cincinnati. WYBG -FM Conn. Falls, Wis. WY00 New Kensington. Pa. WYFI Norfolk, Va.(s) WYSO Yellow Springs. Ohio WZMF Menomonee Canadian AM Stations By Call Letters C.L. Location Kc. C.L. Location Kc. C.L. Location Kc. C.L. Location Kc. at 1070 CFRN Edmonton. Alta. 1260 CJCS Stratford. Ont. 1240 CKDR Dryden. Ont. Studio CRA Sackville, N.B. 900 Moncton. N.B. 1300 CFSL Weyburn, Sask. 1340 CJDC Dawson Creek, B.C. 1350 Station CJRL. Kenora. Ont. CBAF 1320 John, N.B. 1110 CFSX Stephenville, Nfld. 910 CJDV Drumheller, Alta. 910 CK EC New Glasgow. N.S. CBD Saint 570 Windsor, Ont. 1550 CFRS Simcoe. Ont. 1560 CJEM Edmundston. N.B. 570 CKEK Cranbrook, B.C. CBE 1350 Montréal. Que. 690 CFRY Portage la Prairie. Man. 920 CJ ET Smiths Falls, Ont. 630 CKEN Keniville, N.S. CBF 590 NOd. 1450 CFTJ Galt. Ont. 1110 CJFP RiviereduLoup. Que. 1400 CKEY Toronto. Ont. CBG Gander. 1430 860 CFTK Terrace, B.C. 590 CJFX Antigonish, N.S. 580 CKFH Toronto. Ont. CBH Halifax. M.S. 680 Sydney. N.S. 1140 Vancouver. B.C. 1410 CJGX Vorkton, Sask. 940 CK(iB Timmins. Ont- CBI CFUN 980 Que. 1580 CFVR Abbotsford. B.C. 1240 C1113 Vernon, B.C. 940 CKGM Montreal. Que. CBJ Chicoutimi. 900 CBK Regina. Sask. 540 CF W B Campbell River, B.C. 1490 Ci IC Sault Ste. Marie, Ont, 1050 CKJL Saint - Jerome, Que, Toronto, 740 CFWH Whitehorse, Y.T. 570 CJJC Langley. B.C. 850 CKKW Kitchener. Ont. 1320 CBL Ont. 1350 Que. 940 CFYK Yellowknife, N.W.T. 1340 CJKL Kirkland Lake, Ont. 560 CKLB Oshawa. Ont. CBM Montreal, 1380 CBS St. John's. NOd. 640 CH AB Moose law. Sask. 800 CJLM Joliette. Que. 1350 CKLC Kingston, Ont. CB0 Ottawa, Ont. 910 CHAD Amos, Que. 1340 CJLR Quebec. Que. 1060 CKLD Thetford Mines. Que. 1230 CBOF Ottawa. Ont. 1250 CHAK Inuvik. N.W.T. 860 CJLS Yarmouth, N.S. 1340 CKLG Vancouver, B.C. 730 540 CHAT Medicine Hat, Alta. 1270 CJLX Fort William. Ont. 800 CKLM Montreal, Que. 1570 CBI Grand Falls. NOd. 1390 CBU Vancouver. B.C. 690 CHCM Marystown, Nfld. with CJME Regina, Sask. 1300 CKLN Nelson, B.C. Que. 980 another studio at St. John's. CJMS Montreal, Que. 1280 CKLS La Sarre. Que. 1240 CBV Quebec, 800 CDR Calgary. Alta. 1010 Nfld. 560 CJ MT Chicoutimi. Que. 1420 CK LW Windsor. Ont. CBW Winnipeg. Man. 990 CH EC Lethbridge. Alta. 1090 CJNB North Battleford. Sask, 1050 CKLY Lindsay. Ont. 910 Que. 610 CBX Edmonton. Alta. 740 CH ED Edmonton. Alta. 630 CJNR Blind River. Ont. 730 CKML Mont Laurier. CBY Corner Brook, Nfld. 990 CHEF Granby. Que. 1450 CJOB Winnipeg. Man- 680 CKMP Midland. Ontario 1230 N.B. 970 CH EX Peterborough. Ont. 989 NOG Lethbridge. Alta. 1220 CKMR Newcastle, N.B. 790 CBZ Fredericton. 950 CFAB Windsor. N.S. 1450 CHFA Edmonton. Alta. 680 CJON St. John's. Nfld. 930 CKNB Campbellton, N.B. CFAC Calgary. Alta. 960 CH FC Churchill. Man, 1230 CJQR Vancouver. B.C. 600 CKNL Fort St. John- B.C. 560 CFAM Altona, Man. 1290 CH F l Toronto. Ont. 1540 CJOX Grand Bank. Nfld. 710 CKNW New Westminster. B.C. 980 CFAR Flin Eton. Man, 590 CHGB La Pocatiere, Que. 1310 CJOY Guelph. Ont. 460 CFAX Victoria, B.C. 1070 CHIC Brampton. Ont. 790 CJQM Winnipeg. Man. 470 CKNX Wingham, Ont. 920 CFBC Saint John. N.B. 930 CH IQ Hamilton. Ont. 1280 CJRL Kenora. Ont. 220 CKOC Hamilton. Ont. 1150 CFBR Sudbury. Ont. 550 CHLC Saguenay Co.. Que. 580 CJRN Niagara Falls. Ont. G00 CKOK Penticton. B.C. 800 CFBV Smithers, B.C. 1230 CHLN Trois -Rivieres. Que. 550 CJRW Summerside, P.E.I. 240 CKOM Saskatoon. Sask. 1250 Nfld. 570 CHLO St. Thomas, Ont. 680 CJSL Estevan. Sask. 280 CKOT Tillsonburg. Ont. 1510 CFCB Corner Brook. 630 CFCF Montreal 15. Que. 600 CH LT Sherbrooke, Que. 630 CJSO Sorel. Que. 320 CKOV Kelowna. B.C. CFCH Callander. Ont. 600 CH ML Hamilton, Ont. 900 CJSP Leamington. Ont. 710 CKOX Woodstock, Ont. 1340 Timmins, Ont. 620 CH NC New Carlisle. Que. 610 CJSS Cornwall, Ont. 220 CKOY Ottawa, Ont. 1310 CFCL 1380 CFCN Calgary. Alta. 1060 CHNO Sudbury. Ont. 900 CJV1 Victoria. B C. 900 CKPC Brantford. Ont, Chatham. Ont. 630 CHNS Halifax. N.S. 960 CJWA Sault Ste.Marie, Ont. 240 CKPG Prince George. B.C. 550 CFCO 1440 CFCP Courtenay. B.C. 1440 CHOK Sarnia. Ont. 1070 CKAC Montréal, Que. 730 CKPM Ottawa. Ont. CFCW Cameos°, Alta. 790 CHOV Pembroke, Ont. 1350 CKAD Middleton. N.S. 490 CKPR Port Arthur. Ont. 580 CFCY Charlottetown, P.E.I. 630 CHOW Welland. Ont. 1470 CKAP Kapuskasing. Ont. 580 CKPT Peterborough. Ont. 1420 CFDA Vietoriaville, Que. 1380 CHQM Vancouver, B.C. 1320 CKAR Huntsville. Ont. 630 C K R B Cté de Beauce. Que. 1460 CFDR Dartmouth. N.S. 790 CHAR Calgary. Alta. 810 CKAR -1 Parry Sound. Ontario. CKRC Winnipeg. Man. 630 CFGB Goose Bay. Nfld. 1340 CHQT Edmonton. Alta. 1110 Studio at Station CKAR. CK RD Red Deer, Alta. 850 CFGM Richmond Mill. Ont. 1310 CHRC Québec. Que. 800 Huntsville. Ontario 1340 CI

Canadian FM Stations by Call Letters Abbreviations: (s) broadcasts stereo Mc. C.L. Location Mc, C.L. Location Mc. i C.L. Location Mc. C.L. Location Vancouver. B.C. 99.3 Toronto, Ont. 99.1 F I - F M Toronto. Ont- 98.11 Ci ICFM Sault Ste. Marie. CKLG -FM CBC -FM CH 93.9 CBF-FM Montreal. Que. 95.1 CHFM -FM Calgary, Alta. 95.91 Ont. 100 S CKLW -FM Windsor. Ont. CBM -FM Montreal, Que. 100.7 CHIC -FM Brampton. Ont, 102.11 CJMS -FM Montreal. Que. 94.3 C l(O K -FM Penticton. B.C. 97.1 CBOFM Ottawa. Ont. 103.3 CHLT -FM Sherbrooke, Que. 102.7 CJOB -FM Winnipeg. Man. 97.5 CKPC -FM Brantford, Ont. 92.1 Vancouver. B.C. 105.7 ML -FM Hamilton. Ont. 95.3 CJOV -FM Kelowna. B.C. 104.7 CKF'R -FM Port Arthur. Ont. 94.3 CBU -FM CH 94.3 CBWFM Winnipeg. Man. 98.3 Halifax. N.S. 96.1 CJRT -FM Toronto, Ont. 91,1 CKQM -FM Winnipeg. Man. CHNS FM Red Deer. Alta, 98.9 CFBC -FM Saint John. N.B. 98.9 CHQM FM Vancouver. B.0 103.5 CJSSFM Cornwall. Ont. 101.5 CKRD -FM Montreal, Que, 92 5, CKCL -FM Trura. N.S. 100.9 CKSOFM Sudbury. Ont. 92.7 CFCFFM CHRC-FM Quebec, Que. 96.1 CKTB -FM St. Catharines. CFF M FM Kamloops. B.C. 98.3 CHUM Toronto. Ont. 104.5 CKCY -FM Sault Ste. Marie 1039 -FM Ont. 97.7 CFMC -FM Saskatoon. Sask. CHYM-FM Kitchener. Ont 90.7 Ont. 104.3 CFMO -FM Ottawa. Ont. CKUA -FM Edmonton. Alta. 98.1 93.9 CHYM -F Belleville.K tch. On 97.1 CKFM -FM Toronto, Ont. 99 CKVL -FM Verdun. Que. 96.9 CFPL -FM Victoria. B.C. 95.9 -FM Timmins, Ont. 94 CFPL-FM London, Ont. 91.9 CJBRFM Rimouski. Que. 101.5 CKGB CKWM -FM Keniville. N.S. 97.7 Kingston. Ont. 91.9 C1CA -FM Edmonton. Alta. 99 5 CKCM -FM Montreal. Que. 97.7 CKWS-FM King -ton, Ont. 96.3 CFRC -FM 93.5 Man, 96.1 RN Edmonton, Alta. 1003 CJCB -FM Sydney. N.S. 94.9 CKLB -FM Oshawa. Ont. CKX -FM Brandon. CF -FM 92.1 CH ECFM Lethbridge. Alta. 100.9 CJF M -FM Montreal. Que. 95.9 CKLC FM Kingston. On1. CKY -FM Winnipeg. Man.

Juxe-Jul Y. 190i 111 World -Wide Short -Wave Stations The shortwave section of White's Radio Note! At the request of many of our Log is an exclusive feature of RADto -TV readers, and to conform with radio club pub- EXPERIMENTER magazine. This is a listing of lications and international broadcasting the most active and most often reported schedules, we are going to be bringing you the stations, as compiled from reader reports Shortwave Section of WHITES RADIO sent in to us, from published schedules of LOG with all times indicated in Greenwich the stations listed, and from actual moni- Mean Time, 24 hour clock. "GMT" is the toring at the official RADIO -TV EXPERI- international time system and indicates the MENTER monitoring station, DX Central. time at the Greenwich Observatory in We invite our readers to send in their England. loggings for inclusion in these listings. Be To aid you in converting GMT into your sure to include the following information for local time, we offer you the following chart, each station reported: approximate fre- which you may find a handy guide around quency, callsign and/or station name, and your DX shack. time monitored in Greenwich Mean Time (24 hour clock). Address your reports to: GMT TIME TABLE DX Central, White's Radio Log, RADIO -TV GMT EST EXPERIMENTER, 505 Park Avenue, New CST MST PST York, N.Y. 10022, U.S.A. 0000 1900 1800 1700 1600 We are indebted to the following DX re- 0100 2000 1900 1800 1700 0200 2100 2000 1900 1800 porters for making this listing possible. 0300 2200 2100 2000 1900 0400 2300 2200 2100 2000 Patrick Martin, Seward, Alaska 0500 0000 2300 2200 2100 John Shoemaker, Freeport, Ill. 0600 0100 0000 2300 2200 0700 0200 P. L. Miles, Levittown, Y. 0100 0000 2300 N. 0800 0300 0200 0100 0000 Tom Kneitel, K2AES, Pt. Washington, N. Y. 0900 0400 0300 0200 0100 W. L. Gunstream, Jr., Orange, Tex. 1000 0500 0400 0300 0200 Allen McCann, Buffalo, N. Y. 1100 0600 0500 0400 0300 Norman Zarr, Brooklyn, N. Y. 1200 0700 0600 0500 0400 Errald Turner, Newport, Me. 1300 0800 0700 0600 0500 Robert L. Los Angeles, 1400 0900 0800 0700 0600 Ehman, Calif. 1500 Harold D. Allen, Arvida, Que. 1000 0900 0800 0700 1600 1100 1000 0900 0E00 Jerry Stuart, Lawton, Okla. 1700 1200 1100 1000 0'- Danny Jamison, Orange, Va. 1800 1300 1200 1100 10L. Julian M. Sienkiewicz, Brooklyn, N. Y. 1900 1400 1300 1200 1100 Andrew Mandala, Washington, D. C. 2000 1500 1400 1300 1200 Jack Copeland, Hackensack, N. J. 2100 1600 1500 1400 1300 Ricky Vezzani, East Northport, N. Y. 2200 1700 1600 1500 1400 Chuck Edwards, Ft. Lauderdale, Fla. 2300 1800 1700 1600 1500 Melvin D. Herr, Jr., Ft. Sam Houston, Tex. For conversion of GMT to U.S. Daylight (summer) time Steve West, Staunton, Va. add one hour to the desired local time. In other words, Kenneth Woodbridge, 0000 GMT is 1900 EST and would be 2000 EDST, 1900 Cohen, N. J. CDST, etc. W. Bates, Schenectady, N. Y. LeRoy P. Ackerman, Phoenix, Ariz. George Zeller, Salem, Ohio The following abbreviations are used: BC- Richard Schultz. San Diego, Calif. Broadcasting Company, Corporation or William Zlobik, Bridgeton, N. J. System; E- Emissora; R- Radio; V- Voice or Arthur Zimmerman, Moline, Ill. Voz.

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Freq. Freq. (KC) Call Name Location GMT (KC) Call Name Location GMT 2415 - Windward Is. BC St. Georges, 3285 - R. S. Africa Capetown, S. Grenada 2230 Africa 2000 2450 4VEH V. Evangelique Cap Haitien, Haiti 1930 3315 - R -TV Francaise Ft. de France, 2500 OLB5' (time signals) Prague, Czech. 1340 Martinique 0100 2510 HLK50 V. Free Korea Seoul, Korea 1400 R-TV Francaise Cayenne, Fr. 3175 OLBS' (time signals) Prague, Czech. 1340 Guiana 0200 3250 - R. S. Africa Capetown, S. 3320 - R. S. Africa Capetown, S. Africa 2030 Africa 2010 3265 ZFY R. Demerara Georgetown, Br. 3332 - ORTF Brazzaville, Congo 0500 Guiana 0200 3356 - R. Bechuanaland Gaberones, Bech. 1200

112 RADIO -TV EXPERIMENTER Freq. Freq. (KC) Call Name Location GMT (KC) Call Name Location GMT 3370 - R. Mil Esmeraldas, 6045 XEX- R. Universidad S. Luis Potosi, Ecuador 0310 QOC Mex. 0400 3390 - R. Zaracay Sto. Domingo, 6050 - RAI Rome, Italy 2020 Ecuador 1000 6065 - R. Sweden Stockholm, Sweden 0930 3824 ZNF4V Maseru, 6080 - V. de la Liberdad (clandestine) Basutoland 1930 Algeria 0015 3883 - R. CIb. de Cabo Praia, Cape Verde 6085 PCJ R. Nederland Hilversum, Verde Is. 2100 Netherlands 2000 3913 HLK5I V. Free Korea Seoul, Corea 1400 6095 - R. S. Africa Capetown, S. 3995 VQO4 Solomon I. BC Honiara, Solomon Africa 0430 Is. 0725 6100 - R. Phnom Penh Phnom Penh, R. Budapest Budapest, Hungary 1945 Cambodia 1230 4494 - R. Omdurman Omdurman, Sudan 0530 HCSP4 V. del Volante Portoviejo, 4600 - R. Nepal Kathmandu, Nepal 1358 Ecuador 1215 4715 - R. Mindelo S. Vicente, Cape R. Belgrade Belgrade, Verde Is. 1830 Yugoslavia 2130 4745 HCEH3 R. El Progresso Loia, E :uador 0410 6110 R. Ghana Accra, Ghana 0330 6117 R. Centro Populare Colombia 0040 HJIQ V. del Llano Villav cencio, 60 Meter Band -4750 fo 5060 Kc /s Colombia 0330 6130 R. Nacional Espana Madrid, Spair 0100 6135 R. Habana Havana, Cuba 1100 4761 - E. Mariana Pasto, Colombia 0230 R. Papeete Papeete, Tahiti 0300 4795 - R. Comercia Anogla 0530 6150 R. S. Africa Capetown, S. ORTF Brazzaville, Congo 0500 Africa 1635 HCLV4 V. de los Caras Bahia, Ecuador 0430 R. Bucharest Buchwest, Rumania 0300 4810 - R. S. Africa Capetown, S. 6160 R. Berlin Intl. Berlin E. Germany 0230 Africa 0430 6165 HJKJ E. Nueva Grenada Bogota, Colombia 0400 VMG R. Popular Maracaibo, 6170 R. Habana Havana, Cuba 0100 Venezuela 0540 6175 V. de la Liberdad (clandestine) 4840 - BBC Relay Francistown, Algeria 0015 Bechuanaland 1615 6180 HJCT R. Nacional Bogota, Colombia 0400 4870 - R. Ceylon Colombo, Ceylon 0945 6190 R. Bucharest Bucharest, Rumania 0300 4875 HSIJS Army BC Bangkok, Thailand 0730 6193 HJE7. V. de Cali Cali, Colombia 0400 4872 - R. S. Cruz Tegucigalpa, 6199 V. de Pathet Lao Laos 1430 Guatemala 0030 6210 R. Peking Peking, China 2030 4875 - R. S. Africa Capetown, S. 6215 V. of Truth (clandestine) Africa 0430 Greece 0037 1600 Hungary 2200 4885 - V. Kenya Nairob , Kr nya 6234 - R. Budapest Budapest, 4890 HSVSS2 Army BC Bangkok, Thailand 0730 6530 - "Kiss Me Honey" (claneesfine 1530 YVKB R. Venezuela Caracas, Venez. 0400 7015 - ORTF Brazzaville, Congo 1400 4895 - R. S. Africa Capetown, S. 7080 - R. Peking Peking, China 2030 Africa 1600 7085 - V. of Iranian (clandestine) 4940 - Lins. R. Clube Brazil 0300 Nation Albania 1800 4945 - R. S. Africa Capetown, S. 7115 - R. Prague Prague, Czech. 0100 Africa 1635 7120 - R. Kiev Kiev, USSR 0030 4950 - R. Juticalpa Juticalpa, - R. Mogadiscio Mogadiscio, Honduras 2345 Somalia 0310 4951 HJCQ R. Nacional Bogota. Colombia 0400 7135 - R. Iran Tehran, Iran 2000 4960 VUD All India R. Delhi, India 1230 7145 - Syrian BC Damascus, Syria 1400 4594 - R. Omdurman Omdurman, Sudan 1620 7155 - R. Comercial Angola 1030 5015 CP48 R. Universario La Paz, Bolivia 2300 7175 - Rhodesian BC Rhodesia 0600 5C30 - Cadena Nacional Bogota, Colombia 0200 7180 - R. Kiev Kiev, USSR 0430 5C45 - R. Altiplano La Paz, Bolivia 2345 7185 - R. Vilnus Vilnus, USSR 2230 5047 - R. Lome Lome, Togo 2015 7200 - R. Belgrade Belgrade, 5057 YVKD R. Cultura Caracas, Venez. 2213 Yugoslavia 2130 5060 - Burma BC Rangoon, Burma 1430 7210 R. Intl. Red Cross Geneva, Switz. 0600 5900 - R. Budapest Budapest, Hungary 1930 7215 R. Budapest Budapest, Hungary 2200 5920 - R. Vilnus Vilnus, USSR 2230 Armed Forces R. Taipei, Formosa 1000 5930 - R. Prague Prague, Czech. 0100 7220 R. Budapest Budapest, Hungary 2130 5940 - R. Vilnus Vilnus, USSR 2230 7235 RAI Rome, Italy 2020 7240 Rhodesian BC Rhodesia 1300 7250 R. Vilnus Vilnus, USSR 2230 49 Meter Band -5950 to 6200 Kc /s 7255 R. Iran Tehran, Iran 2200 VUD All India R. Delhi, India 1945 7265 R. Tirana Tirana, Albania 3630 5950 OAX6A R. Ar;quepa Ariquepa, Peru 0400 7270 R. S. Africa Capetown, S. 5958 R. Interprovincial Katanga 0400 Africa 2000 5970 R. Berlin Intl. Berlin, E. Germany 0100 7275 - RAI Rome, Italy 2020 5970 HJKA R. Horizonte Bogota, Colombia 1900 7275 - V. Nigeria Lagos, Nigeria 2200 ORTF Brazzaville, Congo 0500 7280 - R. Kiev Kiev, USSR 0030 5980 Trans. de la 7295 - BBC Relay Francistown, Independ. Tuna, Colombia 0300 Bechuanaland 0400 5980 Greenland BC Godthaab, Greenl. 2205 7305 - R. Budapest Budapest, Hungary 1930 5985 R. Portugal Lisbon, Port. 0215 - R. Malaysia Kuala Lumpur, 5990 R. Habana Havana, Cuba 2200 Malaysia 1400 RAI Rome, Italy 2020 7345 R. Prague Prague, Czech. 0100 - Vilnus, R. Bucharest Bucharest, Rumania 0300 7360 - R. Vilnus USSR 2230 5995 R. Andorra Andorra 2100 8070 - V. of Truth (clandestine) 6030 YVNL R. Miramda Los Teques, Greece 0210 Venezuela 1700 9360 - R. Nacional Espana Madrid, Spain 2020 Tirana, Albania 0630 6003 - E. do Liceu Lisbon, Portugal 1700 9390 - R. Tirana 6005 - R. S. Africa Capetown, S. 9457 - R. Peking Peking, China 2030 Africa 0430 6010 - R. Ivorienne Abidjan, Ivory Coast 1930 31 Meter Band -9500 to 9775 Kc /s RAI Rome, Italy 0100 6025 R. Kiev Kiev, USSR 0030 PCJ N. Nederland Hilversum, 9505 - R. Prague Prague, Czech. 0700 Netherl. 2000 R. Belgrade Belgrade, Czech. 2130 CR6RZ E. Official Luanda, Angola 0600 CR6RB R. Benguela Benguela, Angola 0830 6035 XZK3 Burmese BC Rangoon, Burma 1500 9508 - R. Omdurman Omdurman, Sudan 0530 6040 VUD All India R. Delhi, India 1230 9510 - R. Bucharest Bucharest, Rumania 0300

JUNE -JULY, 1966 113 Freq. I Freq. (KC) Call Name Location GMT (KC) Call Name Location GMT 9525 - R. S. Africa Capetown, S. 11865 - RAI Rome, Italy 1200 Africa 0525 11866 - R. Interprovincial Katanga 2115 R. Habana Havana, Cuba 1700 11875 ETLF R. V. of Gospel Addis Ababa, 9540 - R. Ulan Bator Ulan Bator, Ethiopia 0600 Mongolia 2130 11885 - R. Bucharest Bucharest, Rumania 1500 R. Interprovincial Katanga 2115 11895 - West Indies BC St. Georges, 9543 - R. America Lima, Peru 0515 Grenada 2000 9545 - R. Ghana Accra, Ghana 1900 11900 - R. S. Africa Capetown, S. Africa 1000 9550 - R. Habana Havana, Cuba 1700 V. Nigeria 2200 9570 CE957 R. Portales Santiago, Chile 0000 11915 - Nigeria Lagos, 9575 - RAI Rome, Italy 1200 Syrian BC Damascus, Syria 2330 R. Berlin Intl. Berlin, E. Germany 0615 11930 ET- LF R. V. of Gospel Addis Ababa, 9590 - R. Bucharest Bucharest. Rumania 0300 Ethiopia 0530 9605 - Syrian RC Damascus, Syria 2330 ORTF Brazzaville, Congo 1730 9615 - R. Nacional Espana Madrid. Spain 0100 R. Habana Havana, Cuba 2200 9620 - R. Sweden Stockholm, Sweden 1400 1940 - R. Bucharest Bucharest, Rumania 1500 9625 - R. Sweden Stockholm, Sweden 0900 1945 HSK9 R. Thailand Bangkok. Thailand 1030 9630 - RAI Rome, Italy 0100 1970 - R Habana Havana, Cuba 2200 9640 - R. Kiev Kiev, USSR 0030 ORTF Brazzaville, Congo 1100 HLK5 V. Free Korea Seoul, Korea 2100 1975 - R. S. Africa Capetown, S. 9650 - R. S. Africa Capetown, S. Africa 1845 Africa 0500 1990 - R. Prague Prague, Czech. 0100 9655 - R. Habana Havana, Cuba 1103 3670 - R. Pyongyang Pyongyang, N. DMQ9 Deutsche Welle Cologne, W. Korea 100 Germany 2140 4100 VR6AC' - Pitcairn I. 230 9675 - R. Dakar Dakar Senegal 1730 4200 VR6AC - Pitcairn I. 230 9680 - R. Kiev Kiev, USSR 0030 4278' VR6AC - Pitcairn I. 230 9685 - V. de la Liberdad (clandestine) 4324' VR6AC - Pitcairn I. 230 Algeria 0015 5016 - (Gemini music) Cape Kennedy, Fla. 530 BED73 V. of Free China Taipei, Formosa 1015 5060 - R. Peking Pek'nq, China 0930 9688 LRA32 RAE Buenos Aires, Argentina 0000 9690 - V. of Nigeria Lagos, Nigeria 2200 19 Meter Band -15100 to 15450 Kc /s 9705 ETLF R. V. of Gospel Addis Ababa, Ethiopia 0330 9710 - RAI Rome, Italy 2020 5120 ZYN3I R. Soc. da Bahia Bahia, Brazil 0000 R. Beirut Beirut, Lebanon 0130 5170 TGWA V. de Guatemala Tegucigalpa Guat. 1600 9715 KGEI V. of Friendship San Francisco, 5190 ORTF Brazzavi lle, Congo 1730 Calif. 0200 Syrian BC Damascus, Syria 2330 9720 - R. Saudi Arabia Riydah, Saudi 5220 R. S. Africa Capetown, S. Arabia 1645 Africa 1000 R. Beirut Bcirut Lebanon 2300 5230 R. Prague Prague, Czech. 0700 97503 OAXBQ R. Sideral Pucallpa. Peru 0200 5240 R. Berlin Intl. Berlin, E. Germany 1600 9760 - R. Ghana Accra, Ghana 2000 5255 V. Nigeria Lagos, Nigeria 2200 R. Nacional Espana Madrid, Spain 0220 5270 R. Habana Havana, Cuba 1100 9768 OAX80 R. Amazones Iquitos, Peru 0330 5285 R. Prague Prague, Czech. 0700 9730 - ORTF Brazzaville, Congo 0500 5293 R. C. Lourenco Lourenco Marques, 97.57 BED74 V. of Free China Taipei, Formosa 1530 Marques Mozamb. 1630 9770 - Austrian R. Vienna, Austria 2300 5300 R. Habana Havana, Cuba 1100 9795 - R. Prague Prague, Czech. 0100 5333 R. Ceylon Colombo. Ceylon 0700 9840 - R. Hanoi Hanoi, N. Vietnam 1000 5340 R. Habana Havana, Cuba 2200 9865 - R. Djakarta Djakarta, 5380 - Deutsche Welle Kigali, Rwanda 0100 Indonesia 1900 R. Bucharest Bucharest, Rumania 1500 9870 - R. Tirana Tirana, Albania 0030 5405 HCJB V. of Andes Quito, Ecuador 2100 9915 VUD All Inda R. Delhi India 1945 5410 ETLF R. V. of Gospel Addis Ababa, 11640 VUD All India R. Delhi. India 1945 Ethiopia 0600 5445 ORTF Brazzaville, Congo 0500 7715 R. Habana Havana, Cuba 1100 25 Meter Band -I 1700 to 11975 Kc /s 7720 ORTF Brazzaville, Congo 1300 7805 R. S. Africa Capetown, S. Africa 1000 Sweden 0100 Budapest, Hungary 1930 1170= - R Swcc'cn Stockhot- 7780 - R. Budapest 11710 - ORTF Brazzaville, Congo 1400 7830 - R. Ceylon Colombo, Ceylon 0915 LRA35 RAE Buenos Aires, 7855 R. Habana Havana, Cuba 1100 Argentina 2215 8985 OLBS* (time signals) Prague, Czech. 1340 11715 YDF2 R. Djakarta Djakarta, 21450 - R. Prague Prague, Czech. 0700 Indonesia 1730 21500 - ORTF Brazzaville, Congo 1300 11725 - ORTF Brazzaville, Congo 0500 21545 - R. Ghana Accra, Ghana 1530 I515 1 1755 ETLF R. V. of Gospel Addis Ababa, 21720 - R. Ghana Accra, Ghana Ethiopia 0330 11772 HCJB V. of Andes Quito, Ecuador 2100 ZYB8 R. de Sao Paulo Sao Paulo, Brazil 0820 R. Beirut Beirut, Lebanon 1830 117 R. Kabul Kabul, Afghanistan 1400 1179.5 ETLF R. V. of Gospel Addis Ababa, Ethiopia 0300 DMQI I Deutsche Welle Cologne, W. Germany 2140 11790 R. Yerevan Yerevan USSR 0850 11795 R. Berlin Intl. Berlin, E. Germany 0345 11800 R. Ghana Accra, Ghana 1900 11810 R. Bucharest Bucharest, Rumania 0300 1920 XEBR Heraldo de Sonora Sonora, Mexico 2145 R. Berlin Intl. Berlin, E. Germany 1915 R Papeete Papeete, Tahiti 0300 p, R Bc''n Int'I. Berlin, E. Germany 1215 cíti C\ Ale R r +a er Montevideo, Uruguay 7300

I1d:) 1 , 6 V, d R. Bonaire, Neth. Ant. 1830 R. Hanoi Hanoi, N. Vietnam 1000 "Hey, Gladys, come cut a piece of wire 11850 DZHB Far East BC Manila, Phil. 0900 R. Ulan Bator Ulan Bator, about that long!" Mongolia 0220 11.11111111,,,11.1

114 RADIO -TV EXPERIMENTER test launching beginning late 1966, or early Destruction from Space 1967. The initial unmanned launch of a fully- equipped MOL would be scheduled Continued from page 45 for year 1968. This would be followed later that year by the first of five flights with two - photographs the earth from 300 miles up, man crews. MOL's future astronauts would electronically marking its position by meas- be military test pilots, science or engineering uring the stars above. It photographs so graduates of the Aerospace Research Pilot fast, travelling at 17,000 miles an hour, that School at Edwards Air Force Base in Cali- one commentator said Samos photographs fornia. much as one would take pictures of "a horse No Talk. After that heralded press con- lost its voice. So race from a moving elevator." ference, the Government Air- Bambi. Bambi, still under study, is an did the Air Force, Defense, Douglas wall of hush - electronic satellite designed to one day spot craft. But to break through the and intercept fired missiles two to 500 miles hush and fill in RADIO -TV EXPERIMENTER we out these facts about the in space. The boost phase of a missile may readers, sought last only three minutes, and in those 180 future laboratory. The vehicle, according to John M. seconds Bambi is to cite the firing by infra- entire red, intercept by heat -seeking warhead. Coulter, a Colonel writing a paper for the Air University Review, will consist of a Although Bambi, admittedly, is still in B capsule, carrying a crew of two, study stage, there is promise we will one day Gemini lab, will see this amazing satellite. But its fellow scout with a house -trailer size that launch a booster. Once in planned to help meet our serious problem into space on Titan IIIC orbit crew will transfer from their in space, has been cut back. Satellite In- the laboratory section. spector, first named Saint, to be designed Gemini capsule into the and built by RCA was cut back "two years There, in "shirt- sleeve" pressurized environ- will in space thirty days ago." If the Inspector had survived, it would ment, they stay military" experi- have been designed to scout intruders in carrying out "scientific and ments. space, scan a space object to be sure it was is completed, or if there enemy, not friend, then destroy it by strew- When the mission will return to the ing sand or chemical in the satellite's path is an emergency, the crew separate from the laboratory, re- if it was a hostile fellow. capsule, to be at More Cut Back. Another Air -Force vic- enter earth's atmosphere recovered like other The laboratory tim of cancelled contracts was the space sea any Gemini. be left in orbit, or glider Dyna -Soar, programmed in 1958 to could then abandoned for command re -entry and de- be operational by 1965 or 1966, it was cut programmed It is possible, too that the future back in 1963, when the Department of De- struction. dock, fense replaced it with a thirty million dollar lab may be designed to rendezvous and be to ferry "study" of the manned orbital laboratory. and if it is, it could used supply -space craft. But not until a few months ago, when vehicles for outer President Lyndon Johnson invited newsmen MOL Military. But MOL's first thoughts As Defense to the White House did we see real action must be military. Secretary of McNamara has put it, MOL's meant to meet this tragic gap in our space Robert S. program. Then, on August 25, 1965, the mission will be to "develop technology to President invited newsmen to the White improve capabilities for manned or un- House, made this important announcement. manned operations of military significance." is will have a craft We would build, he said, at the cost of $1.5 All of which fine. We effort by the year 1968. billion dollars, a manned orbital (MOL) capable of military we orbital bombers roll laboratory. Directed by the Air Force, the But when realize Red Square, not bashful all threat- project would be handled by two major com- across at world with panies. Douglas Aircraft would design and ening destruction of the free their what will hold build the laboratory. General Electric would "colossal power" we wonder plan and develop space experiments. And back these H- bombers until '68. A United the purpose of the craft, the President said, Nations agreement? Fear of what the people the if would be to "learn more about what man is in Tanganyika may think of Russians capable of doing in space, and how that abil- they start war? Shall we hurl peaceful inten- ity can be used for military purposes." tion at H and megaton bombs? Or hope to Unmanned flights would be scheduled to (Concluded on page 118)

JUNE-JULY, 1966 115 ..

DC Transformer Join a Radio Club Continued from page 80 Continued f page 1s2

the primary and secondary films--each only which are available to members for DX'ing approximately 1000 angstroms thick (one prowess. The ASWLC produces the weekly angstrom equals one hundred- millionth of a DX broadcast over SW station WRUL. centimeter) -are separated by an even thin- American Central Radio Club, % Rich- ner film of silicon oxide, an insulating mate- ard Wood, 207 East 16th Street, Blooming- rial, only about 100 angstroms thick. By plac- ton, Ind. 47403. Founded in 1963, the ACRC ing a number of secondary films in series in gets $2 a year from members. They furnish the DC transformer, it is possible to develop a nice 10 -page paper each month which a secondary voltage many times higher than seems to concentrate on listings of Latin the primary voltage. Similarly, by placing a American stations, especially those on the number of primary films in series, the out- shortwave bands. put voltage can be "stepped down" below International League of Signal Chasers, the input voltage. % Mark Starin, 19 Dorien Circle, Wethers- The DC transformer marks Dr. Giaever's field, Conn. 06109. A new club, organized second major contribution to superconduc- last year, they have a paper called The Long - tor research. In 1960, he announced the dis- wire. Dues are covery that electron "tunneling," originally DX Internationale, % David Wilson, 91 observed only in carefully prepared semi- Court St., Newton, Mass. 02160. This cluh conductor materials, also could occur in thin is really on the way up, and they haven't film superconducting devices of far simpler slowed since their founding in 1963. They configuration. Subsequent tunneling studies publish a giant (sometimes 50 page) month- have added greatly to fundamental scientific ly bulletin which frequently features color. knowledge of both tunneling and super- Coverage includes every possible phase of conductivity. DX'ing, tape swapping, etc. International Radio Club of America, ;, ADVERTISING INDEX Bill Niftier, P.O. Box 5181, Denver, Colo. Advertiser Page 80217. Started in 1964 by a group of former Allied Radio Comu. 14 members of NRC, !RCA devotes efforts to- American Institute of Engineering Technology & 17 wards BCB DX'ing. Ducs are $4. Burstein Applebee Co. 15 Radio Club, Ray Edge, Box Christy Trades School 15, 16 National Cleveland Institute of Electronics 92, 93. 94. 95 63, Kennsington Station, Buffalo, N. Y. Edmund Scientific Co. S 14215. Started about 33 years ago, this is EICO Second Cover the top club in the country for BCB DX en- Fair Radio Sales 16 thusiasts. The yearly conventions are a blast. Heath Company 32. 59. 60, 61 Dues are $4. Hughie Enterprises 17 Newark News Radio Club, 215 Market International Cori espondence Schools 1 Street. Newark, N. 1. 07001. If you never Lafayette Radio Electronics Corp. 13 do anything else in DX'ing you should join Mercury Electronics 4 the NNRC, the oldest and largest of all nt 1 Meshna, John Jr. 21 the clubs. They, publish a massive monthly Midway Antenna 21 Midway Mike 17 DX bulletin which takes tip all aspects of Multitore Sales Corporation 12 DX'ing -really helpful. $5 dues. National Radio Institute Third Cover North American Shortwave Associa- National Radio Institute Fourth Cover tion, e, Bill }Wings. I503 Fitt h As cnuc. Olson Electronics 12 Altoona, Pa. 16602. Going strong and grow- Progressive Edu -Kits. Inc. 9 ing since 1961, the NASA has racked up RCA Institutes, Inc. 25. 26. 27 several hundred members and a good reputa- Radio Shack 2. 3 tion for putting out a healthy DX bulletin Scott, H. H., Inc. 6 with wurthss hile items. Ducs are $3. Squires Sanders 13 These aren't all of the clubs, but these arc Trans -Tek 14 the ones which have proven themselves as Telex Corp. t3 Universal Tuhe Co. 21 being "here to stay." Why not see what they have to offer you?

116 RADIO -TV EXPERIMENTER "Pulling Power Is Amazing"

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San Bernardino, Calif. Get this $1.00 book free! Clip this ad, send with 25 cigar bands from one shape FREE Catalog. Electronics parts, tubes. of any one brand to P.O. Box 16579, HYPNOTIZE secretly, cleverly, one Wholesale. Thousands of items. Unbeat- Phila., Pa. 19122. Include name, address, glance . or money -back. $2.00. Elton's, able prices. Arcturus Electronics -RT. 1966. Box 18223 -TV2, Indianapolis, Indiana, 502 22nd St., Union City, N. J. 07087. zip code. Expires Sept. 15. 46218. CONVERT any television to sensitive, BUSINESS OPPORTUNITIES INVENTIONS WANTED big- screen oscilloscope. Only minor changes required. No electronic experience nec- I MADE $40,000.00 a Year by Mailorder. WE either sell your invention or pay essary. Illustrated plans, $2 00. Relco-A30. Helped others to make money! Start with cash bonus. Write for details. Universal Box 10563, Houston, Texas 77018. $10.00-Free Proof. Torrey. Box 63566T, Inventions, 298 -5, Marion, Ohio. Oklahoma City, Okla. 73106. TELEVISION troubles spotted in minutes! Repair all makes and models this MONEYMAKING OPPORTUNITIES FREE Book "990 Successful Little - easy expert way. No Book theory. A real Known Businesses." Fascinating! Work "work bench" simplified method. Used by 911 Brooklyn. N. Y. PROVEN! Easiest Money Ever!! Plan "pros" throughout the industry. Write home! Plymouth- -Y. $1.00. Action, Box 3114, Corpus Christi, specifying black /white, or color. National 11218. l'axas. Technical Research Labs., 6430 So. West- ern Ave., Whittier, Calif. DOCKS & WATER FRONT TRAIN at home for High- Paying Jobs! CONSTRUCTION Send for the complete guide with its im- NEW! HI -FI Enthusiasts-A Special portant Directory of Courses and discover Magazine for you. Read the unbiased DOCKS- Assembled, nine ft. sections. what courses are best for your talents. tests on new equipment. Send $1.50 to You can launch these yourself. 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More than 200 registered patent Pennsylvania 18252. attorneys have used my service. Free SILENCERS: Rifles, Pistols, Details Invention Protection Forms write: Miss Ann Hustings, Patent Searcher, P. O. Box TREASURE FINDERS -PROSPECTING Construction Operation $1.00. Gunsco, EQUIPMENT Soquel. Calif. 95073. 176, Washington 4, D. C. PERSONAL "NEW" Scientific Instrument detects THE New "Hunting Guide" draws a buried gold, silver, coins, treasures. $19.95 bead on Regional Hunting Forecasts, up. Free catalog. Releo -A30. Box 10563. "Testing The Buck Sluggers," "Getting REVOLUTIONARY Weekly Stock Mar- Houston, Texas 77018. In Shape For The Hunt." etc. Send for ket exposure poll signifies advance market your copy; Hunting Guide t ...:755). 505 action. Free Details. Publisher, Box 908 -C, Park Ave., New York, N. Y. 10022. $1 25. Brooksville, Florida 33512. JUNE -JULY, 1966 117 Language DX Destruction from Space

Continued from page RR Continued from page 115

best organization to start with for several base our survival on weapons Ralph Lapp reasons- The Voice has transmitting plants calls "vulnerable ?" in North Carolina, Ohio, and California. and Three Missions. Or should we heed our this relative closeness. plus the high power military men? They warn the orbital missile in use by the Voice, affords the SWL an ex- may be missioned three ways: cellent opportunity of picking up all of the It could blackmail the free world by orbit- languages transmitted by the Voice of ing in space, frightening the people with a America. Damocles of H -bombs over their heads, In addition, schedules are relatively sim- while gloating Russian leaders demanded sur- ple to obtain. They can be had by writing: render. Mr. George Jacobs. Frequency Division, The missile might possibly be put into Voice of America, Washington 25, D. C. orbit undetected, to aim its H -bombs at The Frequency Division is also responsible United States cities in mammoth surprise at- for answering requests for QSL's. tack. Pick a Lingo. Still another variation of Or, most frightening of all, the missile the language DX hobby gives promise of could orbit 150 miles in space, carrying a many rewarding hours. Choose a single lan- bomb yield of 100 to 150 megaton warhead, guage and check as many broadcasters as then detonate this yield in space. Military you can transmitting in that language. experts tell us no concussion would be felt English, for example, would be a good on earth. There would be no immediate radi- beginning, and a sample check sheet for the ation coming through the earth's atmosphere. interested DX'er is shown in Table B. But the bomb's effects could be a "wide blast There are advantages to starting with Eng- of searing heat," that could set a whole con- lish, since it is understood by all readers of tinent on fire. this magazine. In addition, it is the most Peace. Which leaves us one question! popular language of international broadcast- Will we pay with massive national destruc- ers, appearing in the schedules of some 94 tion as direct result of the "peaceful pur- different broadcast organizations. including a poses," the Dale Carnegie, love- everybody number of clandestine stations, such as The attitudes of our passive leaders? Voice of Cyprus, the Voice of the Falcon, Already it is possible an H -bomb orbit, and The Voice of Freedom Fighters of North over our heads in the skies. Borneo. Other candidates for DX'ing a particular language are French. carried by 68 different Tape that Saved the Voice broadcasters, Spanish, carried by 48 broad- Continued from page 48 casters. Running a surprising fourth is Ara- bic, carried in the International Service of in the Congressional Library in Washington 47 different broadcasters. and in the Will Rogers Memorial at Clare- At the other end of the spectrum. there arc more, Oklahoma. Today visitors at the a number of languages that are carried by Memorial at Claremore can hear anything only one broadcaster. Among these there is from a two- minute sample of his commen- Adigey carried by Radio Liberty. Efìk by taries, to hours of them. In addition, his Spanish Guinea, Fan'i by ELWA Monrovia, voice is heard on radio and on television, and Latin by The Vatican, Niue by Radio New can be had in new record albums. Zealand, Turki by Radio Pakistan, and Wo- The true simplicit, humility and greatness lof, by Tangier of this man whose voice was all but lost for- In conclusion, it would seem that with a ever can now he preserved. Thanks to the veritable windfall of new and exotic lan- magic of magnetic recording tape you may guages now being transmitted by the world's hear his restored voice saying. in that Okla- broadcasters, the hobbyist has an unprece- homa drawl. "You never saw a picture of a dented opportunity to begin a very interest- Pilgrim praying when he didn't have a gun ing and stimulating variation of a very popu- beside him. That was to see that he got what lar but somewhat limited hobby. he was praying for."

118 RADIO -TV EXPERIMENTER BUILD, EXPERIMENT, EXPLORE, DISCOVER WITH NRI CUSTOM- DESIGNED TRAINING KITS

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