HUGO GERNSBACK, Editor g. o JUN 1 9 4 7 RADIO-ELECTRONICS IN ALL ITS PHASES CANADA 30, SIL VANL4 XEWS RADIO SERVICE EDITION JUNE Prepared by SYLVANIA ELECTRIC PRODUCTS INC., Emporium, Pa. 1947 RADIO SERVICEMEN! SYLVANIA'S COLORFUL NEW CLOCK BIG AID IN SERVICE SALES Specially Designed Famous -Make Clock Identifies Quality Stores Stocking Sylvania Tubes Bright white face ... Fifteen -inch diameterI black numerals! Radio tube in silver e Minute and hour and black...design hands in black ... of carton in famil- unique second iar green and hand in attractive black! red! Telechron move- ment sealed in The words ir "RADIO oil; case in brown SERVICE" in green crinkle finish with and black. The word silver -colored rim "SYLVANIA" in iden- around face! Nominal- tifying green! ly priced at only $7.501 Once you place this big, colorful Telechron elec- your customers are being advised of the advan- tric clock -with its "Radio Service" face -in your tages of placing Sylvania "quality- controlled" window, you'll have an attractive sales aid that radio tubes in their equipment. By displaying identifies your business ... every second of the this on- the -spot sales help you're telling them you day ... as carrying the finest line of tubes made. sell these highest quality tubes. Get this wonder- Through far -reaching advertising campaigns, ful sales aid now ! ORDER FROM YOUR SYLVANIA DISTRIBUTOR or write SYLVANIA ELECTRIC PRODUCTS INC., Emporium, Pu. SYLVANIAELECTRIC MAKERS OF RA010 TUBES: CATHODE RAY TUBES; ELECTRONIC DEVICES; FLUORESCENT LAMPS. FIXTURES. WIRING DEVICES; ELECTRIC LIGHT BULBS A FREE iEssoN alLL. YOU'RE ALWAYS ` ' I'LL TRY, MARY, I'LL) II WITH RADIO--OUR SEWON T SEE WHAT I CAN OD SNOWED DILL HOW NE CO1111 WORK--WILL VOL) FIX IT? WITH IT TONIGHT MAKE GOOD PAY IN RADIO: iVE BEEN STUDYING' Al HOME WITH THE SAY, I'VE SEEN THEIR HELLO, BILL--GOT YES. JOE -- I'M NATIONAL RADIO INSTITUTE. I JUST ADS BUT I NEVERTHOUOIIT I CAN'T FIND OUT LANDED A SWELL RADIO JOB,TOO LISTEN I COULO LEARN RADIO WHAT'S WRONG A TOUGH ONE STUMPED -- BLT -- FOR THE CLICKS AS I SHORT THE GRID AT HOME TO FIX ? SINCE WHEN ARE GUESS I'LL MAKE A CONNECTIONS.,. HERE S YOUR TROUBLE I'LL MAIL f LET ME YOU A RADIO EXPERT? FOOL OF MYSELF IN THE FIRST I.F. STAGE -- I LEARNED A COUPON i, J~ - HELP YOU y WITH MARY THIS TEST BEFORE I EVEN STARTED FOR A FREE THE COURSE, FROM A LESSON RIGHT FREE LESSON THE AWAY N. R I. SENT ME THANKS' I WAS JUST OH,BILL--IM $O GLAD YES, OUR WORRIES l'M CONVINCED NOW SOON I CAN HAVE MY YOU CERTAINLY KNOW A TINKERER A FEW I ASKED YOU TO FIX ARE OVER I HAy" THAT THE N.R- I. COURSE OWN FULL-TIME RADIO RADIO. SOUNDS AS MONTHS AGO, BEFORE OUR RADIO' IT GOT IS PRACTICAL AND REPAIR BUSINESS, OR BE GOOD AS THE DAY A GOOD JOB AN I STARTED THE N R.I. YOU STARTED THINKING THOROUGH. I'LL READY FOR A GOOD JOB I BOUGHT IT! THERE'S A BRIGIII COURSE- -BUT ABOUT RADIO AS A IN A BROADCASTING STATION, FUTURE FOR ENROLL NOW. THEN "50 -50 CAREER, AND NOW AVIATION POLICE I CAN MAKE EXTRA RADIO, "GIVES YOU'RE GOING AHEAD N RADIO METHOD A áP +. MONEY FIXING RADIO OR SOME tAi FELLOW THE PRACTICAL Ii SO FAST! RADIOS IN SPARE OTHER BUSY KNOWLEDGE AND EXUERIENCE , TIME WHILE RADIO FIELD TO BE A SUCCESSFUL LEARNING RADIO TECHNICIAN .. You Build These and Other Radio Circuits with BIG KITS OF PARTS I SEND YOU! I will send you a Lesson on By the time you've conducted 60 sets of Experi- ments with Radio Parta I supply, made hun- dreds of measurements and adjustments, you'll Radio Servicing Tips FREE have valuable PRACTICAL Radio experience for a good full or part -time Radio job! TO SHOW HOW PRACTICAL IT IS TO TRAIN AT HOME FOR SUPERHETERODYNE CIRCUIT (right) Preselee- tor, oscillator- mixer -first de- GOOD JOBS IN RADIO tector, U. stage, diode detec- tor -a .v.c. stage, audio stage. { Bring in local and distant stations on this circuit you I want to give you a copy of my build yourself! Lesson, "Getting Acquainted with Re- ceiver Servicing " -absolutely FREE I VETERANS And with it, Fil send my 64 -page illus- trated book, "How to be a Success in You can get MEASURING INSTRUMENT (above) Radio," also FREE. It describes many this training in you build early in Course. Use it in practi- fascinating Radio jobs, tells how cal Radio work to make EXTRA money. N.R.I. trains you at home in spare your own home Vacuum tube multimeter, measures A.0 -, time, how you get practical experience under G. I. D.C., and R.F. volts, D.C. currents, re- with BIG HITS OF RADIO PARTS I sistance, receiver output. send. MAIL THE COUPON! Bill. Mail cou- Future for Trained Men Is Bright pon for full in Radio, Television, Electronics ' A. M. SIGNAL -GEN- It's probably easier to get started in details. ERATOR (left) build Radio now than ever before, because it yourself! Provides the Radio Repair Business is booming. amplitude - modulated Trained Radio Technicians also find neighbors' Radios in spare time while signals for test and profitable opportunities in Broadcast- still learning! From here it's a short experimental purposes. ing, Radio Manufacturing, Public Ad- step to your own full -time Radio Shop Gives valuable practice) dress work. Think of even greater op- or a good Radio job! portunities as Television. FM. and Find Out What NRI Can Do For You many new, war -developed Electronic Mail Coupon for Sample Leeson and sO/!7 devices become available. Get the facts my FREE 64 -page book. It's packed on all these opportunities. Send for with facts about Radio's opportunities V L/ SAMD EELES OR FREE FREE books now for you. Read the details about my Many Beginners Soon Make Extra Course. Read letters from men I Money In Spare Time While Learning Mr. f. E. Smith. President, Dept. 7FX trained, telling what they are doing, NATIONAL RADIO INSTITUTE. Washington 9, D. C. The day you enroll I sending See how quickly, easily you start earning. Moll me FREE. without obligation. Sample Lesson and 94 -pogo book No ! EXTRA MONEY JOB SHEI;15. You can get started. obligation Just about how to win success In Radio and Television-Electronics. (No LEARN Radio Principles from my MAIL COUPON NOW in an en- salesman will call. l'lesso wrlto plainly.) I easy -to- understand, illustrated lessons velope or paste it on a penny postal. -PRACTICE what you learn by J. E. SMITH, President, Dept. 7FX. 1 building, testing and experimenting National Radio Institute, Pioneer Age with parts I send -USE your knowl- Home Study Radio School, Washing- edge to make EXTRA money fixing ton 9, D. C. I Name I OUR 93RD YEAR OF TRAINING MEN FOR SUCCESS IN RADIO Address I My Radio Course Includes Training in City Zone Sister I TELEVISION ELECTRONICS FREQUENCY MODULATION APPROVED FOR TRAININÇ UNDER G.I. BILL RADIO -CRAFT for JUNE, 1947 T /nIHbOhIT CUTS TO SERVICING "Quick, easy and efficient" ... that's how servicemen describe IRC's 11 Tap -In Shafts.tNo fiddling or fussing with shaft inserts or "build -ups" ... no money tied up in stocks of exact replacements. A smart tip of the hammer and the tapered surfaces of control and shaft lock together, forming a permanently tight attachment. In combination with, the IRC Century Line of Volume Controls, these 11 Tap -In Shafts are the logical answer for over 90% of your replacement problems. Save you time and money. Time saved means extra time for other money-making jobs ... money saved means greater profits. The latest edition of the popular IRC Volume Control Replacement Manual is now available. Contains information on nearly all models up to 1946, complete listings for the 1941 -42 sets coming in now for repair. 156 pages. 25c at your IRC Distributor. International Resistance Company, 401 N. Broad St., Philadelphia 8, Pa. In Canada: International Resistance Co., Ltd., Toronto, Licensee. YOU'RE ON THE AIR! A sen sational new one minute spot announcement to boost serv- ice business has just been re- leased by IRC through IRC Distributors. Listen in and cash in on this promotion ! INTERNATIONAL' ONCE COMPANY lJ Wherever the Circuit say; Q RADIO -CRAFT for J U N E, 1947 ., '\ y ` tips right out of the horse's mouth mail coupon below The editor of The Capacitor" probably won't like being referred to as a "horse's mouth." However, that's only our way of "plugging" the scores of hot ideas for for your free servicemen that he includes in every issue of "The Capacitor." subscription to the C -D capacitor Here's a magazine that's published for servicemen only. Every month it is loaded with ideas for speeding up service procedures -for increasing store traffic - for adding new dollars to your income. Its convenient, pocket -size pages contain valu- able technical data - information on the new type tubes -notes on trouble shoot- ing. Yes, and also dozens of helpful hints that will help you to repair any radio ever made, easier, better and twice as fast. Accept "The Capacitor" with C-D's compliments. Put it to work in your shop speeding up repair jobs - building bigger profits. Don't wait! Mail coupon below NOW, so your FREE subscription will start a once! Cornell- Dubilier Electric Corp.,Dept.RC6,Soutb Plainfield, New Jersey.