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T EVIS i - AmericanRadioHistory.Com

T EVIS i - AmericanRadioHistory.Com

T EVIS i -

T EVIS i N APRIL 1953 IN THIS ISSUE RETA RADIATION GAUGING TELEMETERING CONVERTER CALIBRATION NEGATIVE RESISTANCE IN GERMANIUM DIODES DECAY CONSTANT MAGNETIC ATTENUATOR CAVITY TUNING ELEMENT PULSE GENERATOR "TIMOTHY" AN ELECTRONIC TURTLE TRANSISTOR CODE PRACTICE OSCILLATOR ANTENNA MEASUREMENTS, (See Page 62)

  • Page 2 and 3: Portrait of a serviceman ...buildin
  • Page 4 and 5: Editor and Asst. Publisher OLIVER R
  • Page 6 and 7: CBS-HYTRON TRANSISTORS CBS- HTTRON
  • Page 8 and 9: BY T H E E D I T O R Model 5P12 Roc
  • Page 10 and 11: Sí/PR//JOB PRJ/FOJ/iIJA/VCJI OF SY
  • Page 12 and 13: EXCLUSIVE J- IIIIC'l'lC(I.S 1'111C'
  • Page 14 and 15: G -C DUPLEX TUBE PIN STRAIGHTENER H
  • Page 16 and 17: Multiply your sales with * 4* (AUTO
  • Page 18 and 19: 18 Like money in the Bank... aras r
  • Page 20 and 21: For over fifteen years UTC has been
  • Page 22 and 23: 't1M{TRUL NUCLEONICS Fig. 3. Typica
  • Page 24 and 25: O TELEMETERING CONVERTER CALIBRATIO
  • Page 26 and 27: NEGATIVE RESISTANCE IN GERMANIUM DI
  • Page 28 and 29: Fig. 4. Germanium diode sine - wave
  • Page 30 and 31: U.H.F. MAGNETIC ATTENUATOR By FRANK
  • Page 32 and 33: Fig. 6. Large electromagnet for cur
  • Page 34 and 35: Fig. 3. The grid -dip meter. Top po
  • Page 36 and 37: Avenue, Cambridge 39, Mass. The Typ
  • Page 38 and 39: serves were a terise of $100,000,00
  • Page 40 and 41: By WILFRID B. WHALLEY Adjunct Profe
  • Page 42 and 43: JOSEPH N. BENJAMIN has been appoint
  • Page 44 and 45: O nE w TUBES permits the tube to be
  • Page 46 and 47: photostat form, $18.75. Orders for
  • Page 48 and 49: Decay Constant (Continued from page
  • Page 50 and 51: A HIGH -POWER PULSE GENERATOR By W.
  • Page 52 and 53:

    Corner Reflector .Vo. 1, HF400 When

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    New! another Channel Master develop

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    HERE'S A TIP! THE AMAZING NEW RCP M

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    You headphone users have always kno

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    AS A NATIONAL SCHOOLS GRADUATE THER

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    I laltt . u+ures 11ilr ingfr. BUY T

  • Page 64 and 65:

    HIT BOY YES SIR, OM,THIS 40 METER P

  • Page 66 and 67:

    320K SIG. GEN. KIT $19.95 WIRED $29

  • Page 68 and 69:

    RLY 4 V5 + P 2 R6 uy CS RLI z CI I

  • Page 70 and 71:

    a5 TO FLOOR OF NEST ^4 REGT RS TONG

  • Page 72 and 73:

    A TRANSISTOR CODE PRACTICE OSCILLAT

  • Page 74 and 75:

    IMPROVED VARIABLE POWER SUPPLY By W

  • Page 76 and 77:

    Fig. 2. All controls but the phone

  • Page 78 and 79:

    further condenser failures have occ

  • Page 80 and 81:

    RECEIVER CHANGES TO IMPROVE FRINGE

  • Page 82 and 83:

    By WALTER H. BUCHSBAUM Television C

  • Page 84 and 85:

    typical broadband arrangement cover

  • Page 86 and 87:

    Equalizers mounted on threegang swi

  • Page 88 and 89:

    250 FLAT 500 FLAT 330k AES COL 78 C

  • Page 90 and 91:

    excess of the manufacturer's rating

  • Page 92 and 93:

    T6 R, -50 ohm wirewound pot. R - 10

  • Page 94 and 95:

    Fig. L Channel Master's Antenna Lab

  • Page 96 and 97:

    A LINEAR POWER AMPLIFIER By FREDERI

  • Page 98 and 99:

    Í MAC glanced along the service be

  • Page 100 and 101:

    Fig. 1. (A) Right. a corn. merciai

  • Page 102 and 103:

    Fiq.6. Method by which a mast- moun

  • Page 104 and 105:

    1.25 .60 * * ** * * * * * * * * * *

  • Page 106 and 107:

    I AN ALL By E. R. GAINES, WSUW USH-

  • Page 108 and 109:

    Measures O and in duaance of coils.

  • Page 110 and 111:

    VA 1 vei, en 11,o,h4aVTVM. - Volt o

  • Page 112 and 113:

    , distortion qeMr AUDIO GENERATOR K

  • Page 114 and 115:

    4eat.(4t TUBE CHECKER KIT MODEL TC

  • Page 116 and 117:

    WILLIAMSON The new HEATHKIT WILLIAM

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    NOW: TEST SERVICE 12v. AUTO RADIOS

  • Page 120 and 121:

    . MCC 3.10 135 . 239 4.93 . 7.50 .

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    69, "V of !i... OLSON'S PENNY PROFI

  • Page 124 and 125:

    1.29 * ****** ****** * * ****** ***

  • Page 126 and 127:

    98 circuit diagram type no. specs.

  • Page 128 and 129:

    --phone, ' speaker .99 o,,umcontrls

  • Page 130 and 131:

    TRANSFORMER SPECIALS For amplifiers

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    -- 104 NO WONDER THE TREND'S TO CER

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    THIS NEW BOOK GIVES YOU THE "KNOW -

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    i 108 BECOME AN ELECTRICAL ENGINEER

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    o wloded titts e FL -8 FILTER AND B

  • Page 140 and 141:

    112 i We rest our case on evidence

  • Page 142 and 143:

    what 25,000 Servicemen told Bill An

  • Page 144 and 145:

    m simple ' m Here's how to SAVE MON

  • Page 146 and 147:

    IT'S NEWARK FOR SERVICE HINTS 1teac

  • Page 148 and 149:

    White horizontal bars across pictur

  • Page 150 and 151:

    you SENSITIVE POLARIZED RELAY apl,l

  • Page 152 and 153:

    Nd u much time d °n y spen i11 !°

  • Page 154 and 155:

    25.25 it STAN-BURN CATHODE RAY TUBE

  • Page 156 and 157:

    128 1013 RECEIVING TUBES I Peak -Pe

  • Page 158 and 159:

    1 BC -645 TRANSMITTER -RECEIVER 15

  • Page 160 and 161:

    Grttat SuGlctirltion Tot: EDITION O

  • Page 162 and 163:

    set is for any u.h.f. antenna while

  • Page 164 and 165:

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    98.50 Let me show you how EASY it i

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    e e e e to servicemen who really wa

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    IIFtt. NOW! BECOME EXPERT AT RADIO-

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    JUST PRESS THE BUTTON Krylon is a t

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    I i 17" SET 1 year FACTORY :1 Warra

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    - 1 YK h,,,.W.á5áty A tremendous

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    = M. For center scale reading we ha

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    WORLD'S LARGEST MANUFACTURER OF CUS

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    t' t laiectric CONVERTERS CHANGE 6

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    SPINTI REG. U. S. PAT. OFFICE 156 1

  • Page 188 and 189:

    .54 101-1 opportunities BELL TELEPH

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    1'19 ;I ARC -5 OR 274 -N TRANSMITTE

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    11 - ,.12.40I6V6OT , 1,69 1,40 .57

  • Page 194:

    o' AT' ,. N-VP ,n 40- NV. P , P° i

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