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Build -Tube -Way Stereo Amplifier a 3 2 io -Electronics Rad 35c Kompleat Kommercial Killer Works from Chairside Light Simple 3- Transistor Distortion Analyzer Help the Mute to Speak! Diagnose Common TV Faults New Tube Is Dime Size See page 40 www.americanradiohistory.com I most easy to read Clear, unbreakable, shadowless front for instant wide vision. 5 to 500,000 cps on A.C. Continuous resistance reading from 0.1 ohms to 100 megohms. Polarity reversing switch. Only one (king- sized) switch selects both circuit and range -minimizes wrong settings, burnouts. Only Triplett affords you such a wide choice of VOMs. What- ever your application -broad or limited -there is a Triplett VOM particularly suited for it. the nine two mIÖR + (:":"%\ rem 0.1P1s,' 630 630-A 630 -PL 630-APL 630-NA 631 310 666-H H 625-NA 666 -R TRIPLETT ELECTRICAL INSTRUMENT COMPANY BLUFFTON, OHIO www.americanradiohistory.com Practice Practice You You SERVICING BROADCASTING - with Kits NRI Sends with Kits NRI Sends Clearly written NRI lessons teach Right now, a solid, proven field of TV- Radio -Electronics principles. opportunity for good pay is servic- Right in your own home, during ing the millions of Television and spare time, you gain knowledge, Radio sets now in use. With NRI's get confidence building experience, Servicing Course, without extra develop skills needed to get and charge, you get NRI kits developed hold jobs in this vast industry. especially to give actual practice with Television -Radio equipment. As part of NRI communications training you build low -power You build, test, experiment with Broadcasting Transmitter, other actual Television- Radio receiver equipment; train for your FCC circuits; build, use testing equipment. Commercial Operator's li- All equipment is yours to keep. cense. You learn by doing. I Will Train You at Home in S to be a TELE VISIONRADIO Technician TELEVISION America's fast Growing Industry Making Jobs, Prosperity A steady stream of new electronic products is increasing opportunities Offers You Good Pay, Success for TV -Radio Technicians. The millions of Television and Radio sets now in use need servicing. People look up to and depend on the Technician, more than ever before. His opportunities are great, and are Hundreds of TV and Radio sta- tions on the air offer interesting Id increasing. Become a TV -Radio Technician. At home - and in your spare time, -yo u can learn to do this inter- jobs for Operators and Technicians. J. E. SMITH, esting, satisfying work qualify for important pay. Technical Know -How Brings FRouanddioe r,I nNstaittuiotena l NRaRdIi oi s sAchmoeorli caw'si tho ldoevste ra n4d0 layregaersst' heoxmpee rsietundcey TaVnd- Over 40 Years' Experience thousands of successful graduates. NRI methods are Better Pay, Advancement Training Ambitious Men tested. proved. Successful graduates are everywhere. Start Soon to Make $10, $15 a Week Extra Fixing Sets NRI TRAINED New electronic NRI students find it easy and profitable to start fixing sets for neighbors products are and friends a few months after enrolling. Use the Tester built with parts THESE MEN boosting the need uNpR I$ 1f0u, rn$i1s5h easn tdo lmoocarete aa nwde ecko rgrievcets TsVu b-Rstaadnitoi arle ceexivtrear stproeunbdliensg. Pmicoknienyg. for more and more Many who start- in spare time, soon build full time TV -Radio businesses. "My income has steadily trained TV -Radio increased in Radio. I have Technicians. Of- Mail Coupon Find Out What Television -Radio Offer You aodf vTanVc edS ttaot iConh ieKf ETnIgVin. "e e-r homes everywhere -faicrees ,o bpliglaedn tsto, aYnodu dsuocnc'et ehda vwei ttho kNnRowI aconuyrtsheisn. gA anbdo uyto uel etcratriinc itiyn oyro Rura doiwo nt oh uonmdee -rksteaenpd A. H. SMITH, Sioux City, buy their knowledge and services. your present job while learning. NRI has developed simplified, practical Iowa For instance, transistor Radios, training methods. Ambitious men can get ahead fast. Many successful "Fix sets part time in my Color TV, Hi -Fi, were unknown a NRI men did not finish high school. Mailing the coupon can be one of the shop. Made about $500 first few years ago. Guided missiles, com- most important acts of your life. Do it now. Reasonable tuition, on low three months of the year. puting machines, automation would monthly payments. Let us send you an actual lesson FREE. Judge for CaFbRooAuuNldtK ha lBalv oeRI mEcRaonr,Le hobaraunidtn l,te h.Oi"s .- is nscoite bnec ep-o Essleibclter owniictsh.o uPt otlhicise ,m Airavcilae- ytIuNonSuirTtsiIeeTslUf TahnEod,w D tereaapisnyt.i ni9gtF .i FsA , tdod lreeWasrsan: .s NhAAi nT6g4ItO -opnNa gAe1L 6c ,aR taADlDo.CgIO. g ives details of oppor- tion, Mobile Two -Way Radio are "I've come a long way in expanding. The military services Radio and Television since graduating. Have my ow-n reward qualified Technicians with business on Main Street." higher rank and pay. To ambitious JOE TRAVERS,Asbury Park, men everywhere, NATIONAL RADIO INSTITUTE. New Jersey. here is rich prom- Dept. 9FF, Washington 16, D. C. i k iob 44 sell s "cBouerfsoer e I fwinaissh ienmgp ltohyee dN RaIs ijsoeb so, f sfaatsicsifnaacttiinogn M(Naoi l samlees Smaamn pwlei llL ceassllo. nP alenads e6 4w -rpiateg ep lBaionolyk.,) FREE. ,. 00° kot SI taumdi o nEonwg ianneneor uant cKinMg. M" -J. acrneda spinregs tpiegres,o nina-l Name Age ' DENCO \ C1pS BILL DELZELL, Grand prosperity. ï7 Address Island, Nebraska. City Zone_State ACCREDITED MEMBER NATIONAL NOME STUDY COUNCIL i 1 JUNE, 1959 3 www.americanradiohistory.com JUNE, 1959 50 OVER LINOS Radio -Electronics Of ELECTRONIC I PUBLISHING Formerly RADIO -CRAFT Incorporating SHORT WAVE CRAFT TELEVISION NEWS is RADIO F. TELEVISION EDITORIAL ON THE COVER 29 Millimeter Waves -Hugo Gernsback TELEVISION Isfory on page 401 30 Diagnose Common TV Faults -A. V. J. Martin 32 Kill Commercials Fast -Otto Relling Some vacuum tubes are dif- 33 Use Polarized Plugs ferent. Only ' ] inch tall, the nuvistor triode is the 34 Commercial Antenna Installation for Fringe Areas -Engineering first of a new and different Staff, Scala Radio Co. series. It can outperform a 36 Unusual TVI- Eugene W. Klemm 6BN4. 37 TV Service Clinic- Conducted by Robert G. Middleton Color original by Weco Stu- ELECTRONICS dio, New York, N. Y. 40 Nuvistor -New Kind of Electronic Tube (Cover Feature) -Larry Steckler 42 Space Relay Station -Jordan McQuay 46 IRE Stresses Human Side -Eric Leslie 48 Electronics Helps the Mute to Speak -Aaron Nadell 50 Service Techs Report on Printed Boards Hugo Gernsback Editor and Publisher WHAT'S NEW M. Ha.r,v_ ey GernsbEadcitko rial Director Fred Shunaman 51 Pictorial Reports of New Developments ....... Managing Editor Robert F. Scott AUDIO -HIGH FIDELITY ......WTPWG. Technical Editor Larry Steckler .. _......_ Associate Editor 52 Two -Way Stereo Amplifier Uses Only Three Tubes -Edwin Bohr I. Queen 54 200 -Kw High -Fidelity Amplifier ._..._._.....EdROr1a1 Associate 55 All About the Reflex Enclosure, Part IV -P. G. A. H. Voigt Robert G. Middleton Consonant 59 New Discs and Tapes, Stereo and Mono -Reviewed by Chester Elizabeth Stalcup Santon ._........... Production Manager Cathy Coecoua TEST INSTRUMENTS ..,.......Advertising Production Win. Lyon McLaughlin ....Tech. Illustration Director 70 Measure Harmonic Distortion -Glenn E. Johnson Sol Ehrlich 74 Resistor Substitutor- I. Queen .Art Director 77 Damping Capacitors for Bilateral Instruments -Ronald L. Ives Fred Neinast Staff Artist 77 Transistor Dc Microammeter -Rufus P. Turner Lee Robinson .._Director, Advertising Seres RADIO John J. Lemon Eastern Sales Manager 78 The Single -Sideband Story, Part II- Edward M. Noll G. Aliq..u_o._ .......circulMWn Manager- 84 Simple Transistor Oscillator- Charles Dewey Adam J. Smith 88 ABC's of Mobile Radio, Part V -Leo G. Sands ,,..Director, Newsstand Sales Robert fanait .: Ion Manager 118 Books 111 Noteworthy Circuits 113 Business and People 99 On the Market 112 Correction 107 Patents 18 Correspondence 91 Technicians' News 116 Literature 98 Technotes Average Paid Circulation Over 187,000 102 New Tubes and Semiconductors 105 Try This One 6 News Briefs 112 50 Years Ago HIGH FIDELITY h1.0021;VIREas RADIO -ELECTRONICS is indexed in Applied Science & Technology Index (Formerly Industrial Arts Index) RIllA. DCIOop -yErLigEhCt T1R9O50N IbCyS G, erJnusnbea,c k 1:LP5u9,b licVaotli.o nXs,X XIn,c . NAo.l l trii.g hPtsu brleissheervde d mtoinndthelry Uanti veMrst.a l, MIIn,, terirsn, atIilol.n, al t'ya nId: ePruasnb -aArmk ePriucabnlic aCtoiopnysri,g hItn cC. onSveecnotniodn -csl.a ss postage paid at Mt. Morris, SfSoUUr BBtwSSoCC RRyIeIPPaTrTsIIO;O N$N1 S3.R:0 0AA TdfEodrSr e:ts hsUr e.eSc o.,yr reeUas.rpS,.o . nAdpeloln scsoeets hsteoior ncRs oaaudnnidtor i-e CEs laen$ca5trd.5oa0n, ica$s 4,.y 0eS0a urbf;o s$rc 1r0oip.n0tei0o nyfe oarD r;et wp$ot7. ,. 0y0e1 a54rto sy;W t$ew1so4t. 5y10e4 tahfro sr;S tt$.h,1 r0eN.e0e 0wy e faoYrrso .r tkh r1e1e, yNe.aYrs. . PWahne -nA mreeqruiceasnti ncgo uan tcriheasn g$e5 .0o0f afodrd reosnse, ypeleaars; e $9fu.0r0- nish an address label from a recent issue. Allow one month for change of address. GERNSBACK PUBLICATIONS, INC. Executive, Editorial and Advertising Offices, 154 West 14th St., New York 11, N.Y. Telephone Algonquin 5 -7755. Hugo Gernsback. Chairman of the Board; M. Harvey Gernsback, President; G. Aliquo, Secretary. BPROASNTCMHA SATDEVRE: RITf ISunINdGeli vOerFaFblIeC,E Sse nadn d FFoOrmR E3IG57N9 AtoG: ERNATDSI Olis -tEedL EoCn TpRagOeN I1C22S. , 154 West 14th St., New York 11, N.Y. `Trademark registered U. S. Pat. Office. 4 RADIO -ELECTRONICS www.americanradiohistory.com MAKE MORE MONEY TELEVISION in BETTER... MORE COMPLETE... LOWER COST... WITH NATIONAL SCHOOLS SHOP- METHOD HOME TRAINING ! BETTER...Training that is proved and tested in Resident School shops and RADIO- ELECTRONICS laboratories, by a School that is the OLDEST and LARGEST of its kind in the world. /04174,4 ,. MORE COMPLETE... You learn ALL PHASES of T e!erision -Rud io- Electronics. - LOWER COST... Other schools make several courses out of the material in. .o.u r ONE MASTER COURSE and you pay more for less training than you get in our course at ONE LOW TUITION! You get all information ... TOP PAY... UNLIMITED OPPORTUNITIES by mail You make ... your own decision at LIFETIME SECURITY CAN BE YOURS! home! NO SALESMAN You are needed in the Television, Radio, and hie( trunks industry! Trained technicians are in growing demand at excellent pay- in WILL CALL ALL PHASES, including Servicing, Manufacturing, Broadcasting and Communications, Automation, Radar, Government Missile Projects. NTRAATIIONNINAGL, SwCHitOhO LSn ewSHlyO P -aMdEdTeHdO D lesHsOoMnEs ULEPS -TSOON -DS AATNED, PINRSATCRTUICCTAIOLN, IMNTAETERREISALT INARGE. NU GET... and equipment, trains you in your Every National Schools Shop- Method spare time at home, for these unlim- lesson is made easy to understand by 19 B g Kits -YOURS TO KEEP! ited opportunities, including many numerous illustrations and diagrams. Frienily.Instruction and Guidance technical jobs leading to supervisory All instruction material has been de- Job Placement Service positions. veloped and tested in our own Resi- Unlimited Consultation NtcYKLhoOIETaomUSA tr pioLRolEAueNnANtgeRDa h N lB sPYBPtSaAY rRnc aTBDdhScUao OtIroiLdcWIDl NasEINe lG GqcSt u orE! EiuaNpQWDrminUs eIeeiPnYn MOgtisE nUe N-.con YTdlf u YOWdpyoIreoTUousHu-r dSSmaFEnetReNudnaDdE tn i oEfFSatsO hci.Rl ehuB orIdNOeoiF fl fOOefRSroKeMhrno A cpTy"eIsOoY, Nubo eL! TtuawObSrDeo eAenrYnFad t uo.Sf.rtUoiu.eCr rs Cie ty E aocSnaiunSdnr SCHODESOVVUEiPpECR -RlMCSoYE EmTASTHLaSHIL!-ON RGDPe HcYHAoOgOSnUEMi SzEe N dOET FERb DAy I NINFIDnOINUdRuSG sT tRryY fessional quality for building various Television- Radio- Electronics" and 1. Television, including Color TV experimental and test units. You ad- FREE Sample Lesson. Do it TODAY, 2. Radio AM b FM vance step by step, perform more than while you are thinking about your 3. Elec-ronics for Guided Missiles 100 experiments, and you build a future. It doesn't cost you anythint 4. Sound Recording and Hi- Fidelity complete TV set from the ground up, to investigate! 5. FCC License that is yours to keep! A big, new TV 6. Automation and Computers picture tube is included at no extra 7. Radar b Micro -Waves charge. GET THE BENEFITS OF OUR OVER 8. Broadcasting and EARN AS YOU LEARN. We'll show you 50 YEARS EXPERIENCE Communications how to earn extra money right from tfhoer sthtaeritr. Mcoaunrsye -oaf nodu r mstourdee -nwts hpilaey AGpIp roTvraeidn infog r NATIONALfgak SCHOOLS (, studying. So can you ! WORLD -WIDE TRAINING SINCE 1905 RESIDENT TRAINING AT LOS ANGELES NATIONAMLA ILS CNHOOOWL ST, OD ept RG -69 l I II 4000 S. FIGUEROA ST LOS ANGELES 37, CALIF. SIfc hyoooul waits hL otos taAkneg eyleosu,r tthraei niwnogr ldin' so uTrV Rceaspiditeanl,t Rush free TV -Radio "Opportunity" Book and sample I start NOW in our big, modern Shops. Labs and lesson. No salesman will call. I Radio -TV Studios. Here you work with latest I Electronic equipment - professionally installed i, jjnl ' NAME AGE finest, most complete facilities offered by any school. Expert. friendly instructors. Personal ADDRESS attention. Graduate Employment Service. Help CITY ilno b finwdhinileg yhooum el eanrena.r Cshcehcoko l b-o x ainn d copuaprot n timfoer NATIONAL SCHOOLS L Check if interested ONLY in ResidSenct heel training Lus Angeles lull information. Discharge Los Angeles 37, Calif. JUNE, 1959 www.americanradiohistory.com Mir IN= milm NEWS BRIEFS am aim ANN FCC'S BOOSTER STAND REVERSAL set- with only about $2 billion for new TV, placed. Thus one guard tube is used tled a 5 -year hassle by proposing to al- radio, phonos and hi -fi equipment. The instead of 30. Due to the smaller size low on- channel television booster sta- life sp-aint of TV sets is increasing of the assembly, the necessary lead tions to operate with FCC sanction in slowly was 7 years in 1955, but is shield for keeping out gamma rays can the future. The FCC has been trying to now nearer 9. Too, more and more sets be made much lighter, reducing the get the several hundred boosters off the are being put into use, with fewer weight of the equipment from the pre- air with no success. Now it is going to being retired each year. This should vious 2 tons to about 400 pounds. .A ask Congress for laws helping it set up mean a continuing increase in the de- background count as low as 1 per min- standards for transmission,a nd encour- mand for servicing. However, improved ute can be obtained with the assembly. apgroinbgle mb oios sttehr ato pweriathti oens.t ablniseh mpoesnsti bloef erleelciatrboinliitcys ,o f cionmclpuodninegnt' s athned soelxidp -escttaetde AdiTcOteMd ICfo r POyeWaErsR, mfoary enloewct rbicei tnye, arpirneg- real engineering standards the cost of future transistor switchover will tend practical achievement. The latest de- booster equipment will rise toward that to counteract some of the increase in velopment is an atomic thermocouple oerf attrioann slaotno rsc.h aInnn ealnsy 4c asaen,d bo5o sitse r foopr-- serAviccteu anl eesdersv. icing and installation in- icno nwvherictehd ofnreo mof itths e nmoremtaalsl , scoelisdi umst,a ties bniedadre na.i rcsrinacfet btahnedsse onc hwanhnicehls saafreet y tooof cwohmilee lapsat rtyse arb rwouasg hatb oiunt $a1b.o13u t bil$l1io.3n6, tion toa agna sa tboym ilco wreearicntogr .t hTeh et hoerthmeor cmoueptalel life depends. billion. This repair revenue has been is uranium. NEW COLOR TV SYSTEM is proposed by growing steadily since 1950, when it Earlier atomic generators have re- a Maryland inventor. The receiver's was $350 million. quired no reactor, but have been capable picture tube uses a single gun that emits GEIGER TUBE for measuring minute of producing relatively low power. three closely spaced beams. There is no amounts of radiation, yet within the There may be no limit, theoretically, to mask or post- acceleration grid, as in means of hospitals, industrial and medi- the amount of power the plasma ther- the RCA and Lawrence tubes. The screen is made up of narrow red, blue Guard and green stripes. counter The problem of proper registration is solved by using two pilot frequencies, which modulate the red and green beams, respectively. The phases of the two pilot frequencies differ, and the carrier is so weak as not to interfere with the picture, e-ven in the darker 10M portions. (The Philco "Apple" system s counter Inp-ut t a used a single pilot beam.) These beams Mica circuit window IM correct for misrggistry by, setting.up an error signal whenever the pilot beams 1HV strike the blue phosphor or secondary - .HV emission surface over the blue strips. T The pilots also correct for errors in - convergence. Input a -c circuit The inventor, Arnold Lesti, formerly cal laboratories formerly unable to mocouple can supply. The word plasma a senior engineer at the Bureau of afford ultra- sensitive radiation de- here derives from the fact that the Standards and International Telephone tectors, has been announced by Amperex cesium gas is heated to such a high & Telegraph (ITT), has been working Corp. temperature that the cesium atoms lose with specially built tubes and does not To measure the amounts of radiation their electrons. eutS6ux EnbmpRteieVlosc I nCtsh toEhatm sov. ee D dEfbeuAemrLetEnoh RnemSsrt a rdimametea,p ypr toohbvseese imbnsleemywn ati slnls yianbsb tuoetshumiet- bh"farogaaamdvucupkeniaal gdretd r,ic oo ioiunntmn tuidmsarb naoenddnnsei l"ocoy giea sasceuwsmt,sai hvemridyecca ah u tfaorsas ael snlyduome sruu.r atbot,nr yDuay nle fidotczea orecs s tmttoehh3xriece0s- itgpcFliariMoaeotnr esutsB d p Ew o oAfhot fToh ftS haN re1tTee 3 Vcw se tt FaihfvotYMeeerio. r trt hsAhkte e aa Wrtvuie1eopc3Qrn peaXsneFg rtMeR -i n is -n un lciitrenonhvtcmkeweo eyemod u r fepikans p,mtd aeiia--rs- nessmen, but the radio -TV service counter. Radioaeti've particles passing $10,000 (national average is under business is a big industry today, through a guard tube and then through $5,000). They spend 5.5 hours a day amounting to nearly $2.5 billion spent the counting tube set up pulses in two hearing FM, but only 1.7 hours on TV. annually by set owners for parts and bucking ( "anti-c oincidence ") circuits, The study also showed half a million repairs. In fact, it's bigger business thus producing no count. Only radia- homes, one -third of all in the area, had than the business of making and selling tion so oriented as to pass through the FM sets. the sets. counter without also going through a According to the Electronic Industry guard tube is recorded. HIGH- FREQUENCY WAVES affect the Association figures compiled by veteran The Amperex guard tube is cup - way microscopic animals swim, and also surveyor Frank Mansfield, consumers shaped and surrounds the counter tube the physical arrangement of living cells. spent $2.49 billion for installation, parts except at one end, where the mica win- Scientists of the New England Institute and servicing during 1958, compared dow for the desired beta radiation is (Continued on page 10) 6 RADIO -ELECTRONICS www.americanradiohistory.com EARN LEARN WHILE YOU A BIG DeVRY EXTRA! NOTHING ELSE L :KE Build Your Own See How DeVry Tech Prepares You 6- Speaker Stereophonic for a Good -Paying Career in TELEVISION & Hi-Fi Sound System NOW, you may build and keep your own top quality High Fidelity 6- Speaker RADIO Stereophonic Sound System, as shown below. You Learn -By -Doing for a BETTER JOB or to ADD TO YOUR PRESENT INCOME. As a bonus, you and your family can ELECTRONICS enjoy the thrills of this marvelous sound system for years to come. Hundreds of men, 17 to 55, started to make money in the Electronics field before they even finished their DeVry Tech program. Many made the training pay for itself as they learned! Because DeVry Tech's program is so prac- Special SHORT tical, YOU should be able to do the same. COURSE in High You work scores of projects; you learn by Fidelity Sound Re- watching home training movies; you fol- production including low clear, step -by -step instructions. You Stereophonic Systems really learn principles and master many also available. Ideal for skills. No wonder DeVry Tech men are hobbyists, music lovers and found in so many real -pay, bright- future men seeking NEW OPPORTUNITY. jobs in this great, growing field! Mail coupon. GET A BETTER JOB OR BE BOSS OF YOUR OWN BUSINESS NO ADVANCED EDUCATION OR GET TWO PREVIOUS TECHNICAL EXPERIENCE NEEDED! At home in your spare time, you use the same FREE basic method followed by students in our Chicago and Toronto Booklets! laboratories. You learn to use tools, follow diagrams, when you build any or all of this valuable equipment: the STEREO SYSTEM . . .. .o. r a 5 -INCH OSCILLOSCOPE and VACUUM TUBE "POCKET GUIDE TO REAL EARNINGS" and VOLTMETER or a 21 -inch TV SET. You have many choices! "ELECTRONICS ANC YOU" DeVry Tech's program is so thorough that you will likely be surprised at your progress. Send the coupon for details. Real down -to -earth del, ils are pre- sented to help the man who wants to EMPLOYMENT SERVICE MILITARY get ahead. Both booklets are yours FREE! Fill out coupon and Frequently, we simply SERVICE mail today. 01 --_a,t edosn 't have enough gradu- If you are subject to mili- ^11 - ' available to fill all tory service, you will find -1 the jobs on our list! DeVry the information we have Tech has an Employment for you very helpful. Mail Service that really works. It is avail- the coupon today and 'MAIL acobslet. to graduates without additional get the facts. TODAY FOR FREE FACTS DeVry Technical Institute 4141 Belmont Ave., Chicago 41, III., Dept. RE -6 -P DeVRY Technical Institute Please give me your two FREE booklets, "Pocket Guide to Real Earnings" and "Electronics and You," and tell me how to prepare to enter one or more branches of Electronics. 4141 BELMONT CHICAGO 41, ILL. Formerly DeFOREST'S TRAINING, loc. I NAME AGE PLEASE PRINT Accredited, Member of National Home Study Council I STREET APT --"3One of America's Foremost I CITY ZONE. -STATE f 9 Electronics Training 1 Check here if subject to military training. Centers" DeVry Tech's Canadian Training Center is located at L; 6R l 2051 626 Roselawn Avenue, To -onto 12, Ontario ONE OF THE BIGGEST OPPORTUNITY F/EL,DS OF THE CENTURY! JUNE, 1959 7 www.americanradiohistory.com new... fabu Oils high - powered Satellite Sleeve DipDIe achieves 25% greater gain. VX1111 regular PX911 regular SX711 regular 411. AX911 anodized AX711 anodized SATELLITE -HELIX POWER -HELIX STAR -HELIX Pioneers in Electronics since 1929 FSDeeELECTRONICSIyCORP 6101 I JFD CANADA LTD. JFD INTERNATIONAL RX511 regular JX311 regular 1 51 McCormack Street 15 Moore Street AX511 anodized AX311 anodized Toronto, Ontario, Canada New York, N.Y. SUPER -HELIX JUNIOR -HELIX .1 8 RADIO -ELECTRONICS www.americanradiohistory.com <* MEET THE GREAT NEW JFD HI -FI STAR -HELIX COLORTENNA WITH NEW DESIGN! NEW FEATURES! NEW PERFORMANCE! New Satellite sleeve di- % i Zch seamless elements pole design ups gain 25% All Elements over 30 inches -shrinks the miles, flat- reinforced with 15 inch al- tens mountains for needle - uminum dowels. sharp hi -fi pictures. Non- corrosive aluminum harness network made of Highly directive micro- rigidized busbar. Alumi- wave helical probe (based num screw and nut take- on satellite telemetering offs insure permanent antenna principles) pin- maximum signal transfer. points stations- sidesteps Available in regular or ghosts. gleaming diamond -hard Gold Anodized aluminum. Double U-bolt mast assem- Spearheaded by spectac- bly freezes antenna on tar- ular national JFD adver- get for rock -steady recep- tising for a record service - tion. dealer Harvest of Profit. Tj :.%+5,= presenting the ;--.1.. ,,.. F STARE a000rming Fabulous Satellite Sleeve Dipole design -the antenna concept that's -is bringing high fidelity reception to far -flung fringes the new heart of every JFD HI -FI Helix Colortenna! Five area- engineered models to choose from, assure picture -perfect matching of any location requirements. Make it the year for you with the antenna line for '59 -JFD Hi Fi Colortennas. Now at all JFD distributors. JUNE, 1959 9 www.americanradiohistory.com New H.H. Scott NEWS BRIEFS (Continued from page 6) Stereo Amplifier has for Medical Research, Ridgefield, Conn., have found that amoebas, staphlococcus and other germs, red blood corpuscles, and even polystyrene particles, can be features never before ccoannntrootl lbeed ubsye dt hlee stm iet gfarcyy cthlee pliuviliskegs . ceClWls, as in dielectric heating.. Actual fre- offered at $139.95* c r The new H.H. Scott 24 watt stereophonic amplifier, Model 222, 'tls, puts top quality within the reach of all. This new amplifier has many çE4( /),(36 features never before available for less than $200. It is backed by o H.H. Scott's fine reputation. Check the features below and you'll see why you should build your new stereo system around the H.H. Scott Model 222. r°4 Irorid Iride l'hot quencies required to control action or arrangement vary between 5 and 40 megacycles. One tiny organism swims one way at 6 mc, shifts 90° at 15 mc. Chromosomes, which determine inher- ited characteristics, can be controlled. Work already done has resulted in new strains of vinegar flies and certain bacteria. This technique will undoubt- edly be extended to higher- order ani- mals, and perhaps some day even to man. Photographs show starch particles in normal random arrangement above, and, below, lined up when subjected to high -frequency radiation. PORTABLE TV SETS using transistors may be closer than officials of major producers will publicly admit. A num- Equalization switch lets Separate Bass and Effective scratch filter Channel balance con- Master volume control ber of the big receiver makers are be- yRoI uA A cchoomopsee nsabteiotwn efeonr Tearechb lec hancnoenlt rollest yooun iomn poroldveers wpoernrf orrmecaonrcdes tfreorle nta djsupsetsa kefor r edffiif-- achdajunsntse lsv olusmime uoltfa bnoeth- lieved to have working models of truly monophonic and stereo adjust for differences and improves recep ciencies and brings ously. Also functions as portable transistor TV receivers in the rtaepceo rds; NARTB, for idni fferoreomn/t ascpoeuasktiecrs saynsd- tbiorona dcoan sts.n oisy radio cbhaalannnceel vqouluicmkelys ianntod acountotrmol atwich enleovuedr nedses- labs. When rumoured Japanese sets tems. easily. sired. start coming in, these developmental Special switch posi- This position lets you Exclusive center - models may break loose here. tions for accurate bal- play a monophonic channel output lets you Truly portable receivers will be more satnecreinog. , refvoerr se pslateyrienog stuonuercr e osru cha atas paen FreM- ulifsiee ry oufro rp res3e- ncht aanmnpe-l practical when power for heating the and for using mono- corder through both stereo or for driving picture -tube cathode can be eliminated, phonic records with power stages and extension speakers. your stereo pickup. speakers. Separate stereo tape - possibly with the technique recently recorder outputs. announced for the cold-c athode tube (RADIO- ELECTRONICS, page 98, April, ttroermtioenly ; l0o.w8 %h umha rlmevoenl icS( P-dE 8iCs0tIoFdIrbCti)oA; nTD IO;C N forSep:q euDraeutnaecld y 1 p2r reeswapamotntp slceifh iea2rn0sn etholes a 3; t0e0,r0.s30;%0 I n cppIMust; s d efisox-r- 1u9p5 9t)o. Athvea il2a1b8le mtrca nrseiqstuoirresd cafno r wovrhkf sPtheorenoo soer nsmitoivniotyp h3o nmicv . reScuobr d-seornsi,c truunmerbsl,e pfilhteonr o prceavretrnidtsg eosv earlnoda dt afproem henaodissy. channels, but are very expensive com- changers or turntables. Price $139.95* pared to ordinary transistors used in H.H. SCOTT INC. Dept.RE -6,111 Powdermill Road, Maynard, Mass. Export: Telesco International Corp., 36 W. 40th St., N.Y.C. most receiver circuitry. Even the power transistors required for deflection cir- Insist on genuine H.H. Scott components cuits are reasonably priced now. Straw in the wind is appearance here *Nest of Rockies $1.;91.5. Accessory case extra. of imported FM -AM transistor port- able. Front -end transistors in an FM set work on channels 2 -6. A harmonic type transistor oscillator and a crys- SEND NOW FOR Rush me complete details on your new Model 222 and tal mixer setup can he used for chan- FREE HI -FI GUIDE your complete 1959 Hi Fi Guide and Catalog. nvehlfs tr7a -n13si stuonrsti l (nsouwita bblee ingin emxpaednes ivine AND CATALOG small numbers by at least two American Name manufacturers) are ready. Address (Con tieired on page 14) City State 10 RADIO -ELECTRONICS www.americanradiohistory.com

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