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Corner Reflector .Vo. 1, HF400 When there are new worlds to conquer, JFD will do it! Now our engineers have combined the famous JFD VHF Jetenna and UHF bowtie antenna into a miracle performer that pulls in all channels -from 2 to 83. Use it with the especially developed filter network` for perfect reception, completely free of inter -spectrum interference. Pre -assembled construction, all aluminum, even to solid aluminum dowels. Write for the new 1953 JFD dealer almanac on your letterhead -36 pages of the widest TV antenna . and accessory line in the industry. 'optional "" Bootie-Hector"' ,\o. 1 ll l'6011 1 /uv I -Ifeorn \o. I7I!'500 it's out of this world! new, VHF_ UHF All -Channel Antenna let 283 one antenna -one transmission line for all channels from 2 to 83 1 I(:Iti \'o. 1 HF30o rries for Clooireis 4-1 to HJ v. JFD MFG. CO., Brooklyn 4, N. Bensonhurst 6 -9200 world's largest manufacturer of tv antennas and accessories Burton Browne advertising
Sweeping the Country! Collins Audio Products Co. is in no way affiliated with Collins Radio Co. Two ALL NEW <strong>Com</strong>plete Kits for Every High -Fidelity Need FM Tuner Kit $5 5 The FM -11 tuner is available in kit form with the IF Amplifier mounted in the chassis, wired and tested by us. You mount the completed RF Tuning Unit and power supply, then after some simple wiring, it's all set to operate. 11 tubes: 616 RF amp, 6AG5 converter, 6C4 oscillator, 6BA6 1st IF, (2) 6AU6 2nd and 3rd IF, (2) 6AU6 limiters, PALS discriminator, 6A17 -GT double tuning eye, 5Y3 -GT rectifier. Sensitivity 6 to 10 microvolts, less than '2 of 1 °0 distortion, 20 to 20,000 cycle response with 2D8 variation. Chassis dimensions: 12'2" wide, 8" deep, 7" high. Illustrated manual supplied. Shipping weight 14 lbs. FMF -3 Tuning Unit Selected $1525 The best for FM. The most sensitive and most selective type of "front end" on the market. 6 to 10 microvolts sensitivity. Image ratio 500 to 1. 616 tuned RF stage, 6AG5 converter, 6C4 oscillator. Permeability tuned, stable and drift -free. Chassis plate measures 61/2 "x4' /2 ". In combination with the IF -6 amplifier, the highest order of sensitivity on FM can be attained. Tubes included os well as schematic and instructions. Draws 30 ma. Shipping weight FMF -3: 2 1/2 lbs. Dial available .- 53.85 RD -1C Tuner It Dial Each Collins Tuner Kit is complete with punched chassis, tubes, power transformer, power supply components, hardware, dial assembly. tuning eye, knobs, wire, etc., as well as the completed subassemblies: FM tuning units, AM tuning units, IF amplifiers, etc., where applicable. Since all these subassemblies are wired, tested and aligned at the factory, Collins Pre -Fab Kits are easily assembled even without technical knowledge. The end re- sult is a fine, high quality, high fidelity instrument at often less than half the cost - because you helped make it and bought it direct from the factory. Bring your present reproducing system up to date with a new Collins Tuner. FM /AM Tuner Kit i Basic <strong>Com</strong>ponents For Special Applications ,i, aiii°,,,14esslisn l.1 tls 1/141 ""11111er- '1111 IF -6 Amplifier A 11----4r- $1975 A remarkable value! 6 tubes are used in the IF amplifier: 6BA6 1st IF, (2) 6AU6 2nd and 3rd IF's, (2) 6AU6 limiters and 6AL5 discriminator. High gain, wide -band response (200 KC) for highest fidelity. 20 to 20,000 cycles. Distortion less than 1/2 of 1o,ó. Draws 40 ma ( 220 volts. Chassis plate dimensions: 11.5, 16 "x2 '/2" Shipping weight: 3 lbs. $2850 The COLLINS RD IC FM tuner chassis is unique in the field. A whole, compact FM tuner and dial that fits in the palm of your hand. Convert AM sets to FM'AM receivers for only o few dollars! Unlimited applications where space is at a premium. Use in conjunction with your phonograph amplifier. Full frequency response to 20,000 cycles. Sensitivity 20 microvolts, permeability tuned. Tuning unit and IF amplifier on the same chassis plate. Draws 40 ma 4,, 100 volts. Tubes: 6AG5 converter, 6C4 oscillator, 12) 6AU6 IF amplifiers, 6AL5 in new ratio detector circuit Shipping weight tuner and dial 5 lbs I $»50 The original 15 tube deluxe FM. AM pre fab kit redesigned on a smaller chassis. The tuner now measures 14" wide by 12" deep by 7'2" high. This attractive new front and dial assembly opens up new applications where space is at a 3remium. Kit includes every. thing necessary to put it into operation- punched chassis, tubes, wired and aligned components, power supply, hardware, etc. Kit comprises FMF.3 tuning unit, IF-6 amplifier, AM -4 AM tuning unit, magic eye assembly and complete instructions. All tubes included. Shipping weight 19 lbs. AM -4 Tuning Unit Tops in AM superhet performance! A 3-gang tuning condenser gives 3 tuned stages with high sensitivity and selectivity. Assembly is completely wired, tested and aligned ready for immediate use. Frequency coverage 540 KC to 1650 KC at a sensitivity of 5 microvolts. Tubes 6BA6 RF amplifier: 6BE6 con verter; 6BA6 IF amplifier and 6AT6 detector. Draws 30 ma r 220 volts. Mounts on a chassis plate measuring 4 "z73,8'. Ship ping weight 2!'2 lbs. Dial avail. able at 53.85. To: Collins Audio Products Co. Inc. P.O. Box 368, Westfield, N. J. Tel. WEstfield 2-4390 i FM Tuner Kit FM AM Tuner Kit 7, FMF3 Tuning Unit E IF 6 Amplifier J AM -4 Tuning Unit NAME ADDRESS CITY STATE MAIL COUPON TODA Y Slide Rule Dial Assembly RDIC Tuner and Dial Amount fcr Kit $ See weights, add shipping cost S .- Total amount enclosed S ... Check Money Order WHEN YOU THINK OF TUNERS, THINK OF CO LINS AUDIO PRODUCTS April, 1953 21
Page 1 and 2: T EVIS i N APRIL 1953 IN THIS ISSUE
Page 3 and 4: YOU PRACTICE COMMUNICATIONS with Ki
Page 5 and 6: I NOW...from D.T.I.s MILLION DOLLAR
Page 7 and 8: "I Read You Five." Welcome Words! H
Page 9 and 10: THE ONLY COMPLETE CATALOG FOR EVERY
Page 11 and 12: Get yourself on the beam to the BIG
Page 13 and 14: Look! New small size Adashaft Radio
Page 15 and 16: FETTER RECEPTION EVERY Ol oN 1111.
Page 17 and 18: A LOOK INSIDE PROVES WHY PAY A SERV
Page 19 and 20: TELEVISION RADAR ELECTRONICS RESEAR
Page 21 and 22: BETA RADIATION GAUGING METHODS By G
Page 23 and 24: would have in controlling the proce
Page 25 and 26: is done, the meter on the Microvolt
Page 27 and 28: I voltage regulation', '.'. as well
Page 29 and 30: DECAY CONSTANT IN VIBRATING SYSTEMS
Page 31 and 32: I I (5000), and Curie point* occurr
Page 33 and 34: COAXIAL CAVITY TUNING ELEMENT Fig.
Page 35 and 36: Make your U H F circuits as simple
Page 37 and 38: (// Capacitors shown 21 /7 times ac
Page 39 and 40: RCA N E E DS E NGI N E E RS who won
Page 41 and 42: O N FREQUENCY CONTROL FOR MILITARY
Page 43 and 44: i Gpoßt i. NOW YOU CAN 4 pvRAVE ti
Page 45 and 46: known as the 5894 -A, because the c
Page 47 and 48: Ticnife "FILTER DESIGN DATA FOR COM
Page 49 and 50: Converter Calibration (Continued fr
Page 51: For opportunities within your reach
Page 55 and 56: ULTRA FAN series-Complete VHF -UHF
Page 57 and 58: 1 029 Leonard C. Lane, B.S., M.A. ;
Page 59 and 60: A Transistor of point -contact type
Page 61 and 62: PH I LCO TESTERS Now Yours on NEW S
Page 63 and 64: Mriiffffifff(i ( l ((( THE RADIART
Page 65 and 66: TRAIN FASTER- TRAIN BETTER- TRAIN E
Page 67 and 68: A ROBOT ELECTRONIC TURTLE Closeup v
Page 69 and 70: 7. Solder to the ends of the Fa " s
Page 71 and 72: THE semi -automatic or "bug" key is
Page 73 and 74: ' even a small wooden box may be us
Page 75 and 76: Fig. 1. The compact, versatile mobi
Page 77 and 78: access to a surplus TU -10-B tuning
Page 79 and 80: CHANNELS Pertinent frequencies and
Page 81 and 82: quency definition probably wasn't n
Page 83 and 84: conicals are usually stacked two or
Page 85 and 86: THE U T SPEAKER ENCLOSURE Design de
Page 87 and 88: a drop of 6 db -per- octave above 5
Page 89 and 90: Fig. 1. (Left) Front panel view of
Page 91 and 92: Fig. 3. Bottom view of the 30-watt
Page 93 and 94: A LOWR[SISTA NCE OHMMETER _ By J. P
Page 95 and 96: By HAROLD HARRIS Vice -President, E
Page 97 and 98: erticle, the results are not too fa
Page 99 and 100: Sete/t SHORT -WAVE Compiled by KENN
Page 101 and 102: dual triodes with the necessary int
Page 103 and 104:
You, ecutiAtea a &LtAufoP4Lo ctZ& b
Page 105 and 106:
The data that Launched Thousands of
Page 107 and 108:
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.
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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
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a noted 0630 with news, strong leve
Page 141 and 142:
Clearly ' lia) Radio France -Asie,
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le in any variable power supply, no
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. SI9.95 \I e \ With 1 \I I.IB . 1.
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denser (Admiral par number 65B6 -26
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nllent 95 D.e.198 e B d. Adjust the
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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 and 160:
v IlIllIllIlli IllIllIllIll
Page 161 and 162:
NEW TV PRODUCTS On The Market "TELO
Page 163 and 164:
entire u.h.f. band. A sin ;le switc
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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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