Philco-Radio-and-Television-Corp-PT-49 电路原理图.pdf

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1、MANUAL OF 1940 MOST POPULAR SERVICE DIAGRAMS TRANSITONE HOME RADIO MODELS PT-49 AND PT-51 Schem. Phiico Ne. Description Part No. 1 Antenna Transformer .32-3168 2 Tubular Condenser (.0015 mf., 200 ?.) 30-4555S 3 Tuning Condenser *.31-2428 4 Switch .42-1406 5 Tubular Condenser (.05 mf., 200 v.) . .30-

2、4519S 6 Tubular Condenser (.15 mf., 400 v.) .30-4505S 7 Resistor (47,000 ohms, % watt) _33-347154 8 Mica Condenser (110 mmf.) .30-1130 9 Oscillator Transformer .32-3167 10 Tubular Condenser (.05 mf., 200 ?.) . .30-4519S 11 1st I. F. Transformer .32-3149 12 2nd I. F. Transformer .32-3150 13 Resistor

3、(2.2 meg., % watt) .33-522154 14 Mica Condenser (250 mmf.) .61-0033 15 Resistor (22,000 ohms, % watt) .33-322334 16 Volume Control (500,000 ohms) .33-5306 17 Tubular Condenser (.01 mf., 200 ?.) .30-4479S Schem. phi|M Ne. Descriptien Part Ne. 18 Resistor (4.7 meg., % watt) .33-547154 19 Resistor (220

4、,000 ohms, % watt) _33-422154 20 Tubular Condenser (.01 mf., 400 v.) .30-4572S 21 Resistor (470,000 ohms, % watt) .33-447154 22 Resistor (130 ohms, % watt) .33-113336 23 Tubular Condenser (.04 mf., 400 t.) .30-4119S 24 Output Transformer Part of Speaker No.36-1469 25 Speaker .36-1469 26 Electrolytic

5、 Condenser (20-20 mf., 150 ?.) 30-2382 27 Field Coil Part of Speaker No.36-1469 28 Pilot Lamp .34-2068 29 Line Resistor .,.33-3367 30 Tubular Condenser (.04 mf., 400 v.) .30-4119S 31 Push Button Switch.42-1485 32 Padding Condenser Strip.31-6293 PHILCO TRANSITONE HOME RADIOS MODELS PT-57 AND PT-65 St

6、hem. 1 2 3 4 5 6 7 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 No. Description Loop Antenna Assembly Tuning Condenser Tubular Condenser (.05 mf., 200 v.) Tubular Condenser (.25 mf., 400 v.) Resistor (47,000 ohms, *4 watt) . Mica Condenser (110 mmf.) . Oscillator Transformer . T

7、ubular Condenser (.05 mf., 200 v.) 1st I. F. Transformer 2nd I. F. Transformer Resistor (2,2 megs., M watt) . Mica Condenser (250 mmf.) . Resistor (27,000 ohms, V2 watt) . Volume Control (500,000 ohms) . Tubular Condenser (.01 mf., 200 v.) Resistor (4.7 megs., *4*watt) . Resistor (220,000 ohms, V* w

8、att) . Tubular Condenser (.01 mf., 400 v.) Mica Condenser (250 mmf.) . Resistor (470,000 ohms, Vi watt) . Resistor (130 ohms, V2 watt) . Tubular Cpndenser (.04 mf., 400 v.) Output Transformer Part of Speaker No. Speaker . Tabular Condenser (.04 mf., 400 v.) Electrolytic Condenser (20-20 mf, 150 v.)

9、. Field CoilPart of Speaker No. . Pilot Lamp Line Resistor Push Button Switch Padding Condenser Strip -ol 0 I.F. 455 COMPILED BY M. N. BEITMAN, SUPREME PUBLICATIONS 收音机爱 好者资料库 RadioFans.CN MANUAL OF 1941 MOST POPULAR SERVICE DIAGRAMS H$Tt - To Ctutsat* Tim Loo* 0*tmmro* NT . TUNING G( win AWP trt Lt

10、T .ot*4 , 5 O*/ /T3v $ I - 0 S Q.ooiS/ ; (D 2oW( Vo- (g) ?Ca.: 35Z3 5QL6GT 7A8 7B7 7C6 SCHEMATIC DIAGRAM-PT-42, PT-44 oo .oroB oo I gc?gt bp i oo oJp oo Models PT-30, PT-42. PT-44. PT-49 Model- PT-SO. PT-42, PT-44, nod PT-4D are five (5 I tube A. C. or I). ( operated Super-heterodyne compact radios

11、employing a built-in loop aerial. These Models are similar with the ex ception of the cabinets, chassis and speaker size. In addition each Model includes a tuning band from 5-lu to 1600 K. C., Automatic Volume Control; beam power pentode audio output stage and Phileo Loktal tubes. INTERMEDIATE KHKI

12、ENt Yi 455 K. C. POWER SIPPLY: 115 Volts. A. C. or D. C. PHILCO TUBES: 7A8, converter; 7B7, I. F. Amplifier; 7C6. 2nd detector, A. V. C., 1st audio; 50L.6GT, beam power audio out put and a 35Z3, rectifier. AEHIAL AND GROUND: Under ordinary operating conditions an outside aerial or ground is not requ

13、ired. In some loca tions, however, such as steel reinforced buildings and other shielded areas, an outside aerial should be used for maxi- mum performance. For this purpose an outside aerial oon- CN nection is located on the rear lower left corner of the chassis Zs Simply remove the lug from under the screw and attach tin aerial lead to the lug. 7A8) 44HO (7S7 12 a-1 -;2a CS) GO GO 50L6&T 0 x |Q jpom (5) 7C6 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