General-Electric-Co-431BH 电路原理图.pdf

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1、MANUAL OF I9S4 MOST-OFTEN-NEEDED RADIO DIAGRAMS GENERALELECTRIC MODELS 431 A, 432A, 431B, 432B, 433B AND 431BH V4 OET &AUQIO (2AV6 V5 POWER OUTPUT 3SCS a ov RACHOi, PHONO* #U90 ON MODELS 43t,432.49tA,432A PHONO* * The 431 and 432 are identical to the 431A and 431B respec tively, except as noted in t

2、he schematic in regard to Si and S2. AB+ switch was added to the volume control and the former The 431B, 432B and 433B chassis are identical. These models also employ the same arrangement of combination Radio- Phono volume control and B+ switch, and Tone control with power On-Off switch, as is used

3、on the Models 431A and 432A. Tone control circuit components, however, were changed as shown in the schematic diagram for the 431B, 432B and 433B receivers. In addition, the ceramic couplate, C12A, B, C, D, used on the other receivers, was replaced by separate capacitors* YELLOW / RI6 HIT 230K 1800

4、T .12* . CISB TONt i If 50MF J roe*0* R * CtSA , .CO .082* IOOMF 820 Rl9 1iwy 18K t VOLTAGES MEASURED FtR VOLT METER AT LINE-NO SIGNAL |I7V on- off n,. GENERAL ELECTRIC MODEL 442, 443 and 444. PRI. TOP SEC. BOTTOM yiTET I 1/2 TURNS VI osc.- CONV. SENSITIVITY ANO STAGE GAINS AT WATT OUTPUT OR 1.3 VAC

5、 RMS ACROSS VOICE COIL -4ox4*-isox-4 K-4* -4a DKC TO 455KC F V2 455KC j y3 | 400 | y4 vl _i?_ |-F ,-1 DET. & AUDIO POWER OUTPUT 6VOLTS 50C5 GRID 400 -v. FOR 1.3 VAC OUTPUT SC.A 0-15T10- -P 300 y “pp.| j Iti 47-T- ibienl, cio UNLESS OTHERWISE NOTED CAPACITORS MORE THAN l*MMF. CAPACITORS LESS THAN lMF

6、. RESISTORS ARE 1/2 WATT. K* 1000, MI,OOQPOC SOCKET CONNECTIONS: PIN 8 ON each SOCKET ISAOUMMY PlNUSeo FOR a cparc TERMINAL. A SMALL HOLE WHeSuBE SOCKET BETWEEN PNS,05_,20V _r- *18 8 IS USCO TO XEY THESE PlNS.60AC - I2AVG I28E6 I20A6 50CS 3/N.4 3A $V4 3/4 | I2VAC 24VAC 36VAC 8SVAC 43 收音机爱 好者资料库 RadioFans.CN