RCA-Victor-Co-Inc-7BT9J 电路原理图.pdf

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1、VOLUME R-16, MOST-OFTEN-NEEDED 1956 RADIO SERVICING INFORMATION rca Victor Model 7-BT-9J Chassis No. RC-1159 ANTENNA ASSEMBLY Stfi TRANSISTOR SOCKET CONNECTIONS NOTE IN EARLY PRODUCTION R20 IS OMITTED R19 MAS NORMAL VALUE Of ISO OHMS VOLTAGES MEASURED WITH “VOLTOHMYST SHOULD HOLD WITHIN *20% WITH NE

2、W BATTERY K.IOOO ALL RESISTANCE VALUES IN OHMS ALL CAPACITANCE VALUES LESS THAN 10 IN ME A 10 8 ABOVE IN MMF EXCEPT THOSE INDICATED TUNING RANGE INTERMEDIATE FREQUENCY 540-1.600 kc 455 kc n tr * tr BATTERY: Type No. VS-300 Current consumption (with no signal) Useful life (intermittent service) 9 volts Approx. 6 ma Approx 75 hours The assembly represented above is viewed from the wiring side of the board The printed wiring, on the near side of the board, is presented in phantom view superimposed on the component layout of the reverse side 124 收音机爱 好者资料库 RadioFans.CN