Philco-Radio-and-Television-Corp-PT-39 电路原理图.pdf

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1、MANUAL OF 1940 MOST POPULAR SERVICE DIAGRAMS PHILCO TRANSITONE HOME RADIO MODELS PT-25, PT-27 AND PT-39 PHILCO TRANSITONE HOME RADIOS MODELS PT-26, PT-28 AND PT-36 Schem. No. Description 1 Antenna Transformer . 2 Tubular Condenser (.0015 mf., 200 V.) 3 Tuning Condenser . 4 Tubular Condenser (.05 mf.

2、, 200 V.) . 5 Tubular Condenser (.15 mf., 400 V.) . 6 Resistor (47,000 ohms. % watt) . 7 Mica Condenser (110 mmf.) . 8 Oscillator Transformer . 9 Tubular Condenser (.05 mf., 200 V.) 10 1st I. F. Transformer . 11 2nd I. F. Transformer . 12 Resistor 2.2 meg. % watt) . 13 Mica Condenser (250 mmf.) . 14

3、 Resistor (22,000 ohms, watt) . 15 Volume Control (500,000 ohms) . 16 Tubular Condenser (.01 mf., 200 V.) 17 Resistor (4.7 meg., *4 watt) . 18 Resistor (220,000 ohms, 4 watt) . 19 Tubular Condenser (.01 mf., 400 V.) 20 Resistor (470,000 ohms, *4 watt) . 21 Resistor (130 ohms, watt) . 22 Tubular Cond

4、enser (.04 mf., 400 V.) 23 Output Transformer . Part of Speaker 24 Speaker . 25 Tubular Condenser (.04 ml., 400 V.) 26 Electrolytic Condenser (20-20 mf., 150 V.) . 27 Field Coll .Part of Speaker 28 Pilot Lamp . 29 Line Resistor . _0_0_0_(J I.F. 455 KC. 25Z1 35*5 ZAfl 2H M 72 24 Resistor (470,000 ohm

5、s, *4 watt) . 25 Resistor (130 ohms, y watt) . 26 Tuhular Condenser (.04 mf., 400V) . 27 Output TransformerPart of Speaker 28 Speaker . 29 Field CoilPart of Speaker No. 30 Electrolytic Condenser (20-20 mf., 150V) 31 Line Resistor . 32 Pilot Lamp . 33 Tubular Condenser (.04 mf., 400V) . Schem. No. De

6、scription 1 Tubular Condenser (.0015 mf., 200V) 2 Antenna Transformer . 3 Loop Antenna Part of cabinet and loop PT-26 . PT-28 . PT-36 . 4 Tuning CondenserPT-26 & PT-28 . PT-36 . 5 Padding Condenser . 6 Tubular Condenser (.1 mf., 200V) . 7 Condenser & Choke Assy. Resistor (22,000 ohms, 14 watt) .i 9

7、Mica Condenser (110 mmf.) . 10 Oscillator Transformer . 11 Tuhular Condenser (.05 mf., 200V) . 12 1st I. F. Transformer . 13 Resistor (22,000 ohms, y watt) . 14 2nd I. F. Transformer . 15 Resistor (2.2 meg., % watt) .1 16 Mica Condenser (250 mmf.) . 17 Volume Control (500,000 ohms) _ 18 Resistor (47,000 ohms, 14 watt) . 19 Mica Condenser (250 mmf.) . 20 Tubular Condenser (.01 mf., 200V) . 21 Resistor (4.7 meg., 14 watt) . 22 Resistor (220,000 ohms. % watt) . 23 Tubular Condenser (.01 mf., 400V) . COMPILED BY M. N. BEITMAN, SUPREME PUBLICATIONS 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN