Emerson-Radio-and-Phonograph-Corp-AX-257 电路原理图.pdf

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1、MANUAL OF 1939 MOST POPULAR SERVICE DIAGRAMS Emerson Radio and Phonograph Corp. Models AX.211. AX-212. AX-217, AX-235. AX-237. Y AX-238, AX-239. AX-240 and AX-257 a L f 6A6 2 6K7 6Q7 Ci7 c i s!g si/ i Al “1 d lo I rentries l l-1 rHST/I (OUTPUT TRANSFORMCR ON SPEAKER R8 R3 I.F. PEAKED AT 4S5 KC AC OR

2、 DCH LINE -I y wtmr Bmerson Radio SCHEMATIC DIAGRAM SPEAKER FIELD I 450 OHMS j C20 C2I 2SZ6 2SL6 6K7 6AS 6Q7 S TUBE AC-DC RECEIVER SCHEMATIC DIAGRAM FOR MODELS AX-211, 212, 217, 236, 237, 238, 239 and 267 LI, T1 T4 T2 T3 R1 R2 R3 R4 R6 R6 R7 R8 R9, RIO R14 R16 Cl, C2 C8 +C4 tC6, Cll +C6, C7, C8. CIO

3、 C12 C13 C14 C16, C18 C16 C17 C19 C20. C21 C23 40 Part No. 4XT-432 4XT-468 4XT-434 4XT-436 2CR-193 KR-63 3FR-293 KR-67 4XR-336 4XR-327 KR-66 KR-66 4XW-112 4XR-334 4ZR-326 4XC-391A 4XC-401 BC-12 4XC-393A AC-6 LC-64 4XC-394A 3HC-274 LC-66 3FC-336 4HC-348B 4XC-404 4XS-324 4PS-303A 4BL-94 DESCRIPTION An

4、tenna coil with adjustable 466 kc wave-trap. Oscillator coil (see production change no. 2) . . Double-tuned 466 kc first i-f transformer. Double-tuned 466 kc second i-f transformer. 30,000 ohm Vi watt carbon resistor. . . 60,000 ohm Y* watt carbon resistor. 140 ohm Vi watt wire-wound resistor. 1 meg

5、ohm watt carbon resistor. Volume control .26 megohm with line switA_. . !. ! 16 megohm watt carbon resistor. 250,000 ohm 4 watt carbon resistor. 600,000 ohm 14 watt carbon resistor. Resistance line cord with pilot light ballast section. _ , R9160 ohms; RlO40 ohms 2,600 ohm 1 watt carbon resistor. 17

6、6 ohm 1 watt metallized resistor. Two-gang variable condenser. 0.00066 mf mica condenser. Trimmer, part of wave-trap assembiy. Trimmers, part of variable condenser. Trimmers, part of i-f transformers. 0.06 mf, 200 volt tubular condenser. 0.00006 mf mica condenser 0.1 mf, 200 volt tubular condenser 0

7、.06 mf, 400 volt tubular condenser 0.00022 mf mica condenser. 0.002 mf, 600 volt tubular condenser. 0.02 mf, 400 volt tubular condenser. 0.026 mf, 400 volt tubular condenser. Dual 20 mf, 160 volt dry electrolytic condenser. 20 mf, 126 volt dry electrolytic condenser. 4 dynamic speaker (for 211, 212, 217, 235, 237, 238, 239 and 267) 6 permanent magnet dynamic speaker (for 240 cabinet). Pilot light, 6.3 volt, .25 amp., Mazda No. 44 COMPILED BY M. N. BEITMAN, SUPREME PUBLICATIONS 收音机爱 好者资料库 RadioFans.CN