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Grttat SuGlctirltion Tot: EDITION OF RADIO & TEL<strong>EVIS</strong>ION NEWS `- ' --r NAME ADDRESS CITY LINE STATE POSITION COMPANY I'll pay when Billed Remittance enclosed Canada, Mexico, South Americo some os U. S. A. For oll other countries add $1.00 for each year. 3 years 2 years 1 year $1000 $900 5600
NEW TV PRODUCTS On The Market "TELOJECTOR" Gray Research and Der'lopment Co., Inc. of New York is t urrently marketing a new, lightweigh t projector for TV stations which provides automatic, remote, or local control "lapping" of an unlimited nt mber of 2" x 2" transparent slides. Known as the "Telojector," the new unit provides a sequence o' twelve NOW! ULTRA -HI "CONICALIYIBEAMS" Outstanding Broadband UHF Antennas featuring- STACKED HI -GAIN "CONICAL -V- BEAM" DIPOLES -Ultra sensitive stacked array with excellent directivity for clean, snowfree, ghost -free long distance reception. BROADBAND - Stacked "CONICAL. -V- BEAM" dipoles insure flat hi -gain response with full video and tone fidelity on any UHF channel, plus freedom from flicker or flutter! slides from a single loading of the two turrets. Additional load'd slide turrets, which can be substituted for . used turrets in a matter of ;econds, provide an unlimited sequenc !. The unit is 141/2" high, 10íF " wide, and 16" long. It weighs 32 pounds. WESTINGHOUSE SETS Westinghouse Electric Corp. has unveiled seventeen new television sets which constitute its 1953 line. An exclusive feature of t le new line is an automatic brightness control which provides a perfect picture under any room lighting condition completely automatically. When roon lights are bright there is no picturt washout and when room lights Ere low there is no unpleasant glare as the receiver instantly and autom itically adjusts the picture contrast ttf existing conditions. The new line has complete accommodation for all 70 new u.h.f. c Tannels in addition to built -in antennas for both u.h.f. and v.h.f. ANTENNA COUPLERS JFD Mfg. Co., Inc. of 6101 16th Ave., Brooklyn 4, N.Y. has de. .eloped an electronic coupler for .l.h f. and v.h.f. antenna installation, the "Je- Tie". The new unit is a silver- pl'inled circuit hermetically sealed in a Butyrate case. The coupler has four ! ets of terminals; one pair of terminal! is for v.h.f. antennas covering Channels 2 -6, another for Channels 7 -13. The third April, 1953. HURRICANE DESIGN- FACTORY AS- SEMBLED - Light weight, ruggedized construction of the finest, most durable materials available today. Easily installed in a minimum of time. UHF CLOVER -> with reflector, Model 900. Ideal hi -gain array for UHF. HI- CHANNEL VHF (CHANNELS 7-13) OTHER MODELS AVAILABLE for every ultra -hi frequency need in every price range. Call for catalog. "CONICAL-V- BEAMS" ore produced under Reissue Potent No. 23,346 INC. CONICAL -V -BEAMS YOUR OWN ELECTRONIC MUSIC flow to build and play my latest model electronic organ without a knowledge of music. Send stamp for details JIM KIRK, WOOER, 1552 Church St., San Francisco 14, Cal. ANOTHER OUTSTANDING JOBBER GREEN TELE -RADIO DIST. 472 Sane, Ave. Ikeeklyn, N. Y. HAS THE SENSATIONAL NEW 470K 7" E/CO SCOPE KIT IN STOCK! AMERICA'S OUTSTANDING TEL<strong>EVIS</strong>ION BEAM Be ste V ttpNopk le ASBURY PARK 7, N. .1. taPOEMP0.K GET INTO ELECTRONICS y..i can enter this uncrowded. Interesting field. 1,,re lse espial-lar, nets developments demand mined vpeciu lists. Study all plusses radio S electronics theory and practice: TV: FM: hrnad- Cating: ,erdring: aviation. narine. pnllee radins IR. month course. G allumes In demand by major compenses. II..S. or wntivalent required. begin .Ian \Inr. Ii..I ISS, . `-,.1.. i t...I!!: -'I Writ. for catalog. VALPARAISO TECHNICAL INSTITUTE Dept. RD Valparaiso, Indiana 131
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T EVIS i N APRIL 1953 IN THIS ISSUE
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YOU PRACTICE COMMUNICATIONS with Ki
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I NOW...from D.T.I.s MILLION DOLLAR
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"I Read You Five." Welcome Words! H
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THE ONLY COMPLETE CATALOG FOR EVERY
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Get yourself on the beam to the BIG
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Look! New small size Adashaft Radio
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FETTER RECEPTION EVERY Ol oN 1111.
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A LOOK INSIDE PROVES WHY PAY A SERV
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TELEVISION RADAR ELECTRONICS RESEAR
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BETA RADIATION GAUGING METHODS By G
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would have in controlling the proce
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is done, the meter on the Microvolt
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I voltage regulation', '.'. as well
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DECAY CONSTANT IN VIBRATING SYSTEMS
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I I (5000), and Curie point* occurr
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COAXIAL CAVITY TUNING ELEMENT Fig.
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Make your U H F circuits as simple
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(// Capacitors shown 21 /7 times ac
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RCA N E E DS E NGI N E E RS who won
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O N FREQUENCY CONTROL FOR MILITARY
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i Gpoßt i. NOW YOU CAN 4 pvRAVE ti
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known as the 5894 -A, because the c
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Ticnife "FILTER DESIGN DATA FOR COM
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Converter Calibration (Continued fr
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For opportunities within your reach
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Sweeping the Country! Collins Audio
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ULTRA FAN series-Complete VHF -UHF
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1 029 Leonard C. Lane, B.S., M.A. ;
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A Transistor of point -contact type
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PH I LCO TESTERS Now Yours on NEW S
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Mriiffffifff(i ( l ((( THE RADIART
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TRAIN FASTER- TRAIN BETTER- TRAIN E
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A ROBOT ELECTRONIC TURTLE Closeup v
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7. Solder to the ends of the Fa " s
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THE semi -automatic or "bug" key is
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' even a small wooden box may be us
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Fig. 1. The compact, versatile mobi
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access to a surplus TU -10-B tuning
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CHANNELS Pertinent frequencies and
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quency definition probably wasn't n
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conicals are usually stacked two or
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THE U T SPEAKER ENCLOSURE Design de
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a drop of 6 db -per- octave above 5
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Fig. 1. (Left) Front panel view of
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Fig. 3. Bottom view of the 30-watt
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A LOWR[SISTA NCE OHMMETER _ By J. P
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By HAROLD HARRIS Vice -President, E
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erticle, the results are not too fa
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Sete/t SHORT -WAVE Compiled by KENN
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dual triodes with the necessary int
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You, ecutiAtea a &LtAufoP4Lo ctZ& b
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The data that Launched Thousands of
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Te MANUALS SHOW YOU HOW. Here is vi
Page 109 and 110: NEW WIDE BAND VERTICAL AMPLIFIE Dir
Page 111 and 112: Indicates frequency of energized ci
Page 113 and 114: NAL TRACER KIT OCATOR AND WATTMETER
Page 115 and 116: Mod.loied or nwdc kited RF output.
Page 117 and 118: SUPERHETERODYNE High gain dual iron
Page 119 and 120: H. D. Suesholtz, General Manager, T
Page 121 and 122: It will count events occurring eith
Page 123 and 124: 1 EE101so Mc, MAIL YOUR ORDER TODAY
Page 125 and 126: Which Yo Want? Guet your FCC Ticket
Page 127 and 128: Code Practice Oscillator (Continued
Page 129 and 130: . =Ms or ...eel, u ' tically. topla
Page 131 and 132: 1 II{ Phono Equalizers (Continued f
Page 133 and 134: 1 BA" None None Top Top THE BEST IN
Page 135 and 136: What's New in Rac io (Continued fro
Page 137 and 138: 59 .n 89 60 .89 54.95 . .69 . 1.59
Page 139 and 140: a noted 0630 with news, strong leve
Page 141 and 142: Clearly ' lia) Radio France -Asie,
Page 143 and 144: le in any variable power supply, no
Page 145 and 146: . SI9.95 \I e \ With 1 \I I.IB . 1.
Page 147 and 148: denser (Admiral par number 65B6 -26
Page 149 and 150: nllent 95 D.e.198 e B d. Adjust the
Page 151 and 152: Antenna Measurements (Continued fro
Page 153 and 154: impedance" and is an import ant con
Page 155 and 156: - 1 Junius Heard with news 0730 on
Page 157 and 158: allo is French session 0630 on 15.1
Page 159: v IlIllIllIlli IllIllIllIll
Page 163 and 164: entire u.h.f. band. A sin ;le switc
Page 165 and 166: layout charts and floor arrangement
Page 167 and 168: Fringe Antennas (Continued from pag
Page 169 and 170: a theater TV in the frequency spect
Page 171 and 172: Receiver Change s (Continued from p
Page 173 and 174: :nrh BF "BASIC ELECTRONIC TEST INST
Page 175 and 176: S0.62 f tical and easily- understoo
Page 177 and 178: B2 IT'S TERRIFIC! Fig. 3. Circuit t
Page 179 and 180: h' SGP1 7867 Within the Indust.), (
Page 181 and 182: VARIABLE PULSE LIGHT SOURCE HUNGER
Page 183 and 184: completely new system of closed con
Page 185 and 186: p ice businessman sells time, know
Page 187 and 188: It is apparent from the information
Page 189 and 190: 1 -Improving Ir71 vision Technician
Page 191 and 192: i 2 Rate 50c per word. Minimum 10 w
Page 193 and 194: Assembling the components of Raythe
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