Radio-News-1952-08-R
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1 R I & AUGUST TELEVISION 1952 354 NEWS In Canada 40a IN THIS ISSUE 1ICROWAVES FOR THE "HAM" JNIVERSAL DESIGN CURVES 'CDR TONE- CONTROL CIRCUITS TELEVISION PICTURE TUBE REPLACEMENT GUIDE t "Data- Print" No. 41 THE "DIALAUDIO" SYSTEM SERVICING PICTURE TUBES MULTI- SIGNAL GENERATOR UNIQUE TV SIGNAL TRA PROBE IMPROVED SPEECH CLIPPER CINEMAGNETIC RECORDING See Page 401 www.americanradiohistory.com Specialized racks like these are used tc life -test RCA Kinescopes. The Million - Dollar Test Equipment that pays off in better picture tubes AT RCA's picture tube plants, duction lines and subjected to rigor- ance that only top -quality RCA constant vigilance over quality is ous life tests in racks such as those Kinescopes leave the factory. In this maintained with specialized test shown. Any deviation from pre- way, RCA closely guards its own equipment valued at well over one scribed quality standards is promptly reputation ... and yours as well. million dollars. This huge invest- noted and corrected at the source. In ment is one reason why RCA picture addition, a portion of these samples With RCA Receiving Tubes, tubes are the best you and your cus- is given an extended life test equiva- as well as RCA Kinescopes, TOP -QUALITY tomers can use. CONTROL lent to years of actual service in the makes the difference. In one phase of the quality -control home. program, random samples of picture RCA's constant vigilance at all tubes are taken directly from the pro- stages of manufacture is your assur- TMKS. ïì RADIO CORPORATION of AMERICA ELECTRON TUBES HARRISON, N. J. www.americanradiohistory.com / Will Show You How io LEARN RADIOTELEVISION SERVICING OR COMMUNICATIONS by Prwcfíeingin Spare Trine YOU PRACTICE RADIO YOU PRACTICE RADIO SERVICING COMMUNICATIONS 1 ou build the modern Radio I send you all the parts to build shown below as part of my Transmitter shown below as Servicing Course. I send you part of my new speaker, tubes, chassis, trans- Communications former, loop antenna, every- Course. Conduct thing you see pictured and actual procedure of EVERYTHING you need to Broadcast Opera- build this modern Radio Re- tors, practice in- ceiver. Use it to make teresting experi- many tests, get ments, learn how practical ex- to actually put perience. a transmitter on the air. (O'$' 9 e> °e 01 tt tot tpuPo n "i""P MDd áuNXa1 PJ e o11so Pe Poe 474 a: ¡c I TRAINED THESE MEN "After gorduetine, worked "While learning, I Will Train You at Home for servic- made $5 to $10 a ingshop. Now Chief week in spare time. Engineer of three Now have a,profit- Police Radio Sta- ble spare time tiona."-S. W. DIN -hop." MANY WIDDIE, Jackson. - L. ARN- with KITS OF PARTS I SEND ville, Illinois. OLD, Pontiac,, Mich. s "I accepted a posi- "Rave my own Do you want good a tion as Radio and shop. Am author- pay, a job with bright Many Soon Make S10 A Week Extra in Spare Time Television Techni- ized serviceman for future and security ? Would you like a profit- Keep your job while training at home. Hun- . five manufacturers cian was pro- able shop of your own ? The fast growing, dreds I've successful RADIO- moted to manager of and do servicing for prosperous RADIO trained are Television Service 7 dealers. " -P. MIL- -TELEVISION industry TELEVISION TECHNICIA NS. Learn Radio - and Installation." LER, Maumee, O. is making these opportunities for you. Radio Television principles from illustrated lessons. L. HAUGER, San- alone is bigger than ever. 90 million home Bruno, California. "When I enrolled, Get PRACTICAL EXPERIENCE experi- had no idea it would and auto Radios, 3100 Broadcasting Stations, menting with circuits common to Radio and "Four years - ago. a be no easy to learn. expanding use of Aviation and Police Radio, Television. Many students make $5, $10 a bookkeeper on a Have equipped my Micro -Wave Relay, Two -Way Radio hand -to -mouth sal- shop out of spare for buses, week extra fixing neighbors' Radios in spare ary, am now a Ra- time earnings. I taxis, etc., are making opportunities for dio Engineer time. Special Booklets start teaching you the ABC am clearing about Servicing and Communications Technicians day you enroll. network." - N. H. $40 to $60 a month." and FCC -Licensed Operators. WARD, Ridgefield. A _4s; J. D. KNIGHT, Denison, Tex. Park, New Jersey. Send Now for 2 Books FREE -Mail Coupon Television is TODAY'S Good Job Maker Send for my FREE DOUBLE OFFER. Get In 1946 only 6,000 TV sets sold. In 1950 over actual Servicing lesson. Also get my 64 -page 5,000,000. By 1954, 25,000,000 TV sets will book, "How to Be a Success in Radio -Tele- be in use, according to estimates. Over 100 vision." Read what my graduates are doing, TV Stations are operating in 35 states. earning. Send coupon in envelope or paste on Authorities predict there will be 1,000 TV postal. J. E. SMITH, President, Dept. 2HE, Stations. This means new jobs, more jobs, National Radio Institute, Washington 9, D. C. good pay for qualified men. OUR 39TH YEAR. Good kraohi-FREE MR. J. E. SMITH. President, Dept. 2HE National Radio Institute, Washington 9, D. C. Mail me FREE Lesson and 64 -page book. (No salesman will call. Please write plainly.) NAME AGE ADDRESS A TESTED WAY TO BETTER CITY ZONE STATE PAY...MAIL Approved COUPON NOW fora Training-a -.a. Under G. I. Bill RADIO & TELEVISION NEWS 1, published monthly by the Ziff -Davis Publishing Company at 185 N. Wabash Ave.., Chicago 1, Ill. Entered as second -class matter. July 21, 1 ode, at the Post (flic. Chicago, Ill., under the act of March 3, 1870. Authorized by Post Office Department, Ottawa, Canada. as second-class matter. SUBSCRIPTION RATES: Radio c Television News-one year, U. S. and Possessions, Pan -American countries. and Canada $4.00; all other foreign countries $5.00: Radio -Electronic Engineering Edition -one year, U. S. and Possessions. Pan -American countries. and Canada $6.00: all other foreign countries $7.00. Postmaster- Please return undelivered copies under form 3589 to 64 E. Lake St., Chicago 1. Ill. 3 www.americanradiohistory.com Editor OLIVER READ, D.Sc., DLitt. Managing Editor RADIO& WM. A. STOCKLIN, B.S. Juif inoo e Technical Editor TELE VISION radio - television - electronics H. S. RENNE, M.S. NEWS Average Paid Circulation over 200,000 Associate Editor Reg. U.R. Pat. Off. BECKER HAROLD Radio News Trademark Reg. U. S. Pat Office Television News Trademark Reg. U.S. Pat. Office. Service Editor CHARLES TEPF ER Assistant Editor P. B. HOEFER CONTENTS AUGUST, 1952 Television Consultant WALTER H. BUCHSBAUM Microwaves for the "Ham" Samuel freedman, W6YUG 31 Short -Wave Editor KENNETH R. BOORD Audio Goes Mobile 35 Staff Artist Servicing Picture Tubes John B. Ledbetter 36 FRANK SAYLES Electronic Growth in the Pacific Southwest S. K. Painter 38 Draftsmen A. A. GANS, W2TSP The R.C.O. -A Remote Control Oscillator John F. Clemens, W9ERN 40 J. A. GOLANEK Universal Design Curves for Tone -Control Circuits (Part 2) M. B. Knight 42 Advertising Manager The Multi -Signal Generator Louis E. Garner, Jr. 44 L. L. OSTEN Cinemagnetic Recording A. C. Blaney 46 Midwest Adv. Manager JOHN A. RONAN, JR. Unique Sound Alarm for Deaf Persons H. G. Davis, Jr., M.D. 48 Western Adv. Manager The TV Picture Tube Walter Buchsbaum 50 JOHN E. PAYNE Television Picture Tube Replacement Guide -Data -Print 4 (Insert) 51 Color Art Editor HERMAN R. BOLLIN Constant K Type High -Pass Filter Design Seizo Yamasita 54 An Improved Speech Clipper L. C. Watkins, Jr., W5JXO 55 A Unique TV Signal Tracing Probe E. G. Louis 58 Mac's Radio Service Shop John T. Frye 60 The "Dialaudio" System Budd Meyer 61 Industrial Electronics Ed Bukstein 64 Convert Your Signal Generator into a Grid -dip Oscillator Hartland B. Smith, W8VVD 66 WCEMA -IRE West Coast Meet Ralph L. Power 80 What Is Eidophor? 94 Radio -TV Service Industry News 134 DEPARTMENTS COVER PHOTO: Robert Mitchum, star of the Wald -Krasna production "The Lusty Men," on location. RCA's port- able magnetic recorder -reproducer For the Record The Editor 8 What's New in Radio 76 equipment was used in this filming. (Ektachrome by J. Dale Healy Spot Radio News I b Manufacturers' Literature 88 and Alex Kahle) Within the Industry 24 Reel Review 98 Chairman of the Board and Publisher WILLIAM B. ZIFF Short -Wave K. R. Boord 65 New TV Products 118 President Technical Books 124 B. G. DAVIS Secretary Treasurer G. E. CARNEY Vice -Presidents OAK H. J. MORGANROTH VOLUME 48 NUMBER 2 Production Director Member Audit Bureau of LYNN PHILLIPS, JR. Circulations Advertising Director H. G. STRONG Editorial and [aeeutive Offices. Madison Ave., New York 17, N. Y. to Dept.. 84 E. Circulation Director SUBSCRIPTION SERVICE: communications 8g366 addressed Lake Chicago , Ill. Subscriberseshouldsubscriptionsaow t least two weeks change oflraddress. BRANCH advised retain should OFFICES CONTRIBUTIONS: Office must accompaniedhby etunrnspastage, Contributions wiContributionsl b l ndletl to the ONew York rEditoriall d to whatever adapta- CHICAGO (I) sortable care, but this magazine assumes no responsibility for their safety. Any copy accepted is subject revisions are necessary to meet the requirements of this publication. Payment covers all author's. contributor's, 785 N. Wabash, AN 3.5200 tions and in accepted be tint rates upon ad- and contestant's rights, will part of the material apurchaseä LOS ANGELES (I 4) Allnphoton and be conslideretl 815 S. Hill St., Tucker 9213 Copyright 1952 by Ziff -Davis Publishing Company. All rights reserved. RADIO S TELEVISION NEWS www.americanradiohistory.com TELEVISION RADIO- ELECTRONICS: Tells Why "People Are Funny" Program Relies On D.