General-Electric-Co-4SJ4A1 电路原理图.pdf

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1、MANUAL OF 19S0 MOST-OFTEN-NEEDED RADIO DIAGRAMS GENERAL ELECTRIC MODEL 4SJ4A1 1Z8A7 12SQ7 Pin Pin Pin Pin 1 Gnd 1 Gnd 1 0 1 2 24VAC 2 0 2 24VAC 2 80VAC 3 95V 3 Gnd 3 115V 3 90VAC 4 95V 4 0 4 95V 4 5 6V4V 5 0 5 0 5 110VAC 6 0 6 35V 6 6 7 12VAC 7 0 7 75VAC 7 110VAC 8 0 8 12VAC CO % 8 120V ALIGNMENT IN

2、STRUCTIONS 1. Turn SI to Radio and volume to maximum. Connect an output meter across the speaker voice coil. Connect generator ground to B- through a .1 mfd. condensor, and the high side to pin 8 of the 12SA7 tube through .03 mfd. Tune generator to 445 kc. and tune T1 trimmers for maximum output rea

3、ding. 2. Remove generator connection to pin 8, unsolder antenna and attach generator to LI through 25 mmfd. Turn tuning condenser of set fully open. Set generator to 1620 kc. Tune oscillator trimmer on tuning gang for maxi mum reading; set R.F. trimmer for maximum output, reading. Use only enough generator output to get a reading on the output meter. RV 收音机爱 好者资料库 RadioFans.CN