Emerson-Radio-and-Phonograph-Corp-503 电路原理图.pdf

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1、MANUAL OF 1946 MOST POPULAR SERVICE DIAGRAMS EMERSON RADIO Schematic Symbol Cl, C2 C3 C4 C5, C6 C7, C8 C9, C15 CIO Cll, C12 C13 04 06 07, 08 09 LI LI Rl, R9 R2 R3 R4, R5 R6 R7 R8 RIO Rll R12 Part No. 920010 920170 920020 910000 920040 920030 925000 920050 700000 700200 397000 321330 390010 321130 34

2、0290 370490 310810 340010 397040 321050 I Modols 501, 502 503 , stud 504* CHASSIS MODELS: 120000, 120029 DESCRIPTION Two-gang variable condenser (120029 chassis)_ Trimmer, part of variable condenser._._._. Trimmer, part of variable condenser_ Trimmers, part of first i-f transformer._ Trimmers, part

3、of second i-f transformer_ 0.002 mfcL, 600 volt condenser_-_ 0.001 mfd., 600 volt condenser._ 0.02 mfd., 400 volt condenser._ 0.00022 mfd. mica condenser.-_-. 0.1 mfd., 200 volt condenser_._._._._._._ 0.05 mfd., 400 volt condenser._ 30-50 mfd., 150 V. dual dry-electrolytic condenser; 0730 mfd., 0850

4、 mfd. 0.2 mfd., 200 volt condenser_ Loop antenna, or. Loop antenna . 15 meg., 34 watt resistor.- 3.3 meg., 34 watt resistor. Models: 510, 519, 520, 470,woohms,u4 wattiresistor.Z! and ChassisJ 120030, 150 ohms, 36 watt resistor- ftP Similar* 1000 ohms, 1 watt resistor.- - 22,000 ohms, 34 watt resisto

5、r_ 10 ohms, 36 watt resistor_ 15 ohms, 1 watt wire-wound resistor.- 220,000 ohms, 34 watt resistor.- PIN NUMBER The following voltage readings are d-c measurements taken from B (line switch) in the indicated tube-socket pin. 1000 ohms-per-volt meter should be used for all readings except those indicated by an asterisk (*), which should be taken with a vacuum-tube voltmeter. if peaked at 455 k.c rzznm / capacity coupling WOUND IN COIL 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 收音机爱 好者资料库 RadioFans.CN