Admiral-UL5K1 电路原理图.pdf

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1、MANUAL OF 1948 MOST-OFTEN-NEEDED RADIO DIAGRAMS I2SA7 I2SK7 12SQ7 50L6GT 35Z5GT CHASSIS GROUND I.F. 455 KC OSCILLATOR COIL K - RS I R7 C9oJ_C9bl (ZMZ) dH I2S07 I2SA7 I2SK7 30L8GT UL5K1 1. .05 mfd. condenser added at point X in oscillator circuit. 2. B minus is isolated from chassis by 150,000 ohm re

2、sistor and .18 mfd. condenser in parallel. 3. Gang condenser grounded to chassis and not connected to B minus as in above circuit. cfobukaL CHASSIS 5 K 1 MODELS 7T10, 7T14, 7T15 RESIS70RS Symbol Description Port No. R1.22,000 Ohms, 1/2 Watt.60B B-223 R2.1 Megohm, VS2 Watt.60B 8-105 R3.4.7 Megohms, 1

3、/2 Watt.60B B-475 R4. 470,000 Ohms, fi Watt.60 B B-474 R5. 470,000 Ohms, 1/2 Watt.60B B-474 R6.33 Ohms, 1 Watt.60B 2B-3 R7. 1000 Obms, 1 Watt.60B2B-2 RB. 1 Megohm Volume Control and Switch.75B 1-16 R9.150 Ohms, /* Watt.60B B-151 CONDENSERS Cl.1 mfd., 200 Volts, Paper. C2.50 mmfd., 20%, Ceramic.! C3.

4、02 mfd., 400 Volts, Paper.! C4.01 mfd., 400 Volts, Paper.! C5.01 mfd., 400 Volts, Paper.1 C6. 250 mmfd., 20%, Ceramie.i C7. 500 mmfd., 20%, Ceramic. CB.05 mfd., 400 Volts, Paper. C9a.50 mmfd., 150 Volts ) C9b.30 mmfd., 150 Volts f . ClOa.Gang, 0 to 420 mmfd. ClOb.Gang, 0 to 162 mmfd. ). (Spot welded to drum) Cll.20 mmfd., 20%, Ceramic. e Voltages measured with a vacuum-tube volt meter. A second voltage reading (marked with an asterisk *) indicates readings made with a 1000 ohm-per-volt meter. (I2SA7) I2SK7 REAR OF CHASSIS TOP VIEW 收音机爱 好者资料库 RadioFans.CN