HUGO GERNSBACK I Ed.tw o4b/e,ee cage ray/S /SSU pre a e LÀ: io ete C -111 - E L E C T R O N I C S THE ELECTRONIC NOSE SEE ELECTRONICS SECTION CANADA 33c , ' ADIO -ELECTRONICS IN ALL ITS PHASES TV and FM adapter for your A.M. Signal Generator Convert your present A.M. Signal Generator into a Modern Wide Sweep TV and FM Signal Generator 2435 !Wile'. Triplett voltage supplied by the external AM generator is mixed with the frequency modulated signal. The output frequency will be de- Features termined by adding or subtracting the frequencies of the external Readily connected to any A.M. Signal AM generator to or from the 110 m.c. signal produced by the Generator. reactance modulated oscillator. Sweeps 100 K.C. to 10 M.C. Calibrated marker frequencies provide 4 Must for Every Radio Service Shop for marking I. F. oscilloscope trace ... been waiting for this... 20 to 40 m.c. attenuated output ... Radio service engineers everywhere have Marker Signal attenuated. an economical test oscillator for FM and TV...Triplett engineers Horizontal synchronized voltage avail- have found a way to do it using your AM signal generator as a able on panel jack. base thus keeping cost to a minimum. Furthermore this adapter R.F. input and output jacks. unit has been designed with all the refinements necessary for Shielded quick and first class service repair work. Note particularly all the Supplied with two co -axial cables 2 ft. precision features built into this fine adapter -tester. Every shop long. can use one. Hots Adapter Functions Full instructions are packed with each adapter showing how and use with your present AM signal Generator. When used as an adapter the 20-40 m.c. to hook up variable frequency oscillator can he used as a Place your order with your distributor for delivery when marker source. Also as an adapter the r.E available. Worth waiting for. TRIPLETT ELECTRICAL INSTRUMENT COMPANY BLUFFTON, OHIO, U.S.A. In Canada, Triplett Instruments of Canada, Georgetown, Ontario 1 LIARN RADIO /C /1/a /H SPARE TINE / 1 you speaker, tubes, .nusrs, trans - r An part of niy Course send the 101 former, loop antenna, etc. EVERYTHING you need to build this odern, Radio Receiver! In addition, I send you parts to p 10° - powerful build many other real Radio circuits, like the Radio Tester, Frequency A pic- Receiver - Modulation (FMI Signal Generator, and Superheterodyne tured below. You use this - material to get practical Ra- 'e dio experience and to make ` a' - EXTRA money fixing neigh. Radios in spare time. Mail coupon below for com- 1 [ f plete information I - I SEND YOU BIG KITS OF PARTS You Build and Experiment - With this MODERN RADIO AND MANY OTHER CIRCUITS Ito yot. want a good -pay job in the Future tor T rained Me n Is Brith! your asst- growing Radio Industry -or in Radio i elms ion Electronics own morey- making Radio Shop? My It's , ,d train -at -home method has helped hun- Ruli, e the dreds of men with no prerioua expe- Radio Ilsi-iir In. -..0 'I rained rience become qualified Radio Tech- Radio Technicians also find proîitable op- the Coupon and you'll get port unities in Polies, Aviation, Marine nicians. Mail Radio, Broadcasting, Radio Manufacturing, a Sample Lesson and my 64 -page book, Piddle Address work. Think of even "How to Be a Success in RADIO -Tele- greater opportunities as public demand vision -Electronics." both FREE. See for Television, FM. Electronic devices con- tinues to Get the facts on all these how you get practical Radio experience grew. FREE J. F. SMITH, P,sldent at home, building, testing Radio cir- opimrtanities. `end for looks now Motional Radio ln.tltte cuit with 111G KITS OF PARTS I send! FYI Out W MI MII Cu Os hr To Many Beginners Sean Make EXTRA Mosey Mail Conlon for Sample Lesson, "Get - I TRAINED THESE MEN ting Acg nainteal 'With 1[eeeii er Servicing," in Spare Time While Learning my gg packed Main SR A roll I start sending with farts laboutlta lln'ss olkiortnnit es for Week Nos Miss }:XTIt.t MIINES'rie11 uals. You learlearn the details about my Course. ciples from my easy-to-under- letters from men I trained, telling - I ans Radio Radio hü(leadrl Serviceman stand, illuustrated lessons Plt.tt'TII'E what what they a n doing. nting. ee how learn with parts I send -ESE Your quickly, easily You Can for The kmI .wiedge t., make }: X 'r It st get started. No ob- Adams Ap- money fixing neighbors' Radios ligation. Just MAIL pliance Co. sare ahil, still learn- l'1 /UP(IN Ntlw in an Am now get- ing! From alone il's a short s!tp envelope or paste to y air full -firs, Radio o a penny costal. ting EGO a Shop, or s H,,,,d Radio job! J. E. SMITH, Pres., Dept. BOX ark, plus bonus and over - National Radio Institute, Ia,,,uc. horn. im,. " -W. A. ANGEL, Itlytheaville, Arkansas. Seine Radio School, Washington 9, D. C. Ares Nothlnt Abort Radio I k n e w VETERANS nothing" -FREE about Radio You can get Good for Both when I en- MR. J. E. President. Dept. BOX rolled. I am SMITH, doing spare this training National Radio Institute, Washington 9, D. C. Lime work. I Mail me FREE Sample Lesson and 64 -page book. (Nu have more than paid for Bill. my Course and about under G. I. salesman will call. Please write plainly.) $200 worth of equip- Age ment." -- RAYMOND Mail coupon. HOLTCAMI', Vandalic, Name Illinois. Address My Course Includes Training in City Zone State TELEVISION ELECTRONICS Check if Veteran FREQUENCY MODULATION RADIO-CRA}T. Jab', 1948. Volume XIX. No. 10. l'u dished monthly by IPade,ati l'ul.l Trat hors. Ina., 29 norl ld tigps Sher Springfield 3. \lire. Entered as sued class matter at lost I lmn, SprI istmeld. Mass., antler the Act I March 3. 1879. 2 Capitol Radio Engineering Institute - Pioneer in Radio Engineering Instruction Since 1927 Don't let others put you out of the picture! Here's how CREI Home Study Training prepares you NOW for a BETTER Job and a Secure Career in Radio - Electronics CREI plus Your Present Experience keeps you ahead of Competition-Earns you more money! Never before have so many men like you had the opportunity to step ahead into better-paying jobs and enjoy lasting success. Why? Just look at the more than 3000 FM and standard broad- cast stations predicted by the FCC by the end of the year -the scores of applications and permits for Television stations -the new applications radio -electronics is finding daily in every type of industry-the mobile communications systems now being utilized everywhere from backwoods logging operations to metropolitan taxicabs -the new high in overall radio -electronics manufacturing. No wonder men with modern, technical training are needed every let others in branch of radio-electronics. Don't put you out MMMMM of this picture. NOW is the time for you to take the time to prepare yourself for the important career jobs this great industry expansion is making possible. CREI home study training can CAPITOL RADIO ENGINEERING INSTITUTE show you the way by providing you with the "tools" with which lilt Park Road, R.g., Seel. SC -I, Washington 10, O.C. to build a firm foundation of ability based on a planned program Gentlemen: Please send your free booklet, of modern technical training. "CREI training for your better job in Radio - Electronice." together with full details of your In our proved method of instruction you learn not only how, home -study training. I am attaching brief resume of my experience, education and present but why! This is real, honest -to- goodness practical training that position. leads to better jobs and more rapid promotions . the type of PRACTICAL SA010- ELECTRORICS Practical Ttltelslsa} training for which many thousands of radio technicians have enrolled during the past 21 years. ireedcastl0 C Aaesautical Rolls Engineering It costs you nothing to read the interesting facts. There is Receiver Servicing Industrial Electronics no obligation. Send the coupon now. NAME VETERANS! CREI TRAINING AVAILABLE UNDER G. I. BILL STREET CAPITOL RADIO CITY .... ZONE.._... STATE ................ ENGINEERING INSTITUTE I an sulllld Is training yodel 1. I. VIII. An Accredited Technical Institute Dept. RC -7, 16th and Park Road, N. W., Washington 10, D. C. Branch Offices. glow Teri (7) 170 Broadway Son Francisco (2) 760 Market St. RADIO -CRAFT for :t Learn '110 TELEVISION, ELECTRONICS 4 SHOP METHOD HOME TRAINING Let NATIONAL SCHOOLS, of Los Angeles, a practical Technical Resident Trade School for almost 50 years, Sou recive all parts, i eluding tubes, for build train you for today's unlimited opportunities in Radio nq this fine. modern Superheterodyne Receiv- er. This ar -d other valu- able standard equipment aecomes your property. Good Jobs Await the Trained Radio Technician Lessons and You are needed in the great, modern Radio, Television and Elec- tronics industry! Trained Radio technicians ale in constant any. Instruction growing demand at excellent pay -in Broadcating, Communica- Material Are Up -to -date, Practical, Interesting. tions. Television. 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