Emerson-Radio-and-Phonograph-Corp-CG293 电路原理图.pdf

《Emerson-Radio-and-Phonograph-Corp-CG293 电路原理图.pdf》由会员分享，可在线阅读，更多相关《Emerson-Radio-and-Phonograph-Corp-CG293 电路原理图.pdf（2页珍藏版）》请在收音机爱好者资料库上搜索。

1、MANUAL OF 1940 MOST POPULAR SERVICE DIAGRAMS MODEL CG-293 (For AC Operation Only) MODEL CGI-293 (For A.C. or D.C. Operation) MODEL CG-294 (A.C. Automatic Record Changer) MODEL CGI-294 (AC-DC Automatic Record Changer) V7 _ Emerson Radio and Phonograph Corp. I.F PEAKED AT4SS K.C. 6A8GT T3 / 6K7GT 6SQ7

2、GT I SPEAKER SOCKET 4 ON CABLE FROM CHASSIS. 25L6GT j(Vi*w looking at tottoa i r tn ANCHORAGE HOLE R9 R10 PHONO SOCKET Viwioohiflf 1 rmr ot cMwfe) I FOUR POSITION TONE RIlS CONTROL SHOWN IN S MAX. BASS POSITION. S (VMM l Mite* teoklaf l rM/J UJ SPEAKER PLUG MOUNTED ON SPEAKER g Vlw tooAlni pin*) WAV

3、E 9AN0 SWITCH SHOWN IN 9ROAOCAST POSITION. POSITION NO! POLICE 2 9ROAOCAST PHONO RADIO SWITCH SHOWN IN PHONO. POSITION USE WITH AC-OC MOTOR- PHONO PLUG f (VI* looking ot pint) I OUTPUT TRANSFORMER ON SPEAKER .CRYSTAL SwSj ACCRDCLWE 1 PICKUP -, _T_ V LINE SWITCH ? 52 V - ON VOLUME / Tci4 1 I i INDICA

4、TOR ( O Q 6 LIGHT v VIEW LOOKING AT PINS OF BALLAST RESISTOR.WHICH HAS AN OVERALL VOLTAGE OROP OF 49 V. AT -3 AMR VOLTAGE OROP ACROSS PILOT LIGHT IS 4 VOLTS. _ WIRING ANO APPARATUS ON MOTOR BOARD Tl, LI 6GT-468 T2 6GT-469 T3 4XT-434CU T4 4XT-435H Rl, R2 KR-53 R3, R6 PR-79 R4 NNR-220 R6 6SR-362 R8 4X

5、R-327 R9, R10 KR-56 Rll 3FR-293 R12 KR-55 R13 KR-57 _ L-49DG Cl, C2 6GC-428 C3 NNC-199 C4 6GC-429 C12, C15 6GC-430 C13 IIC-133A C14 LC-64 C16, C17 C25, C30 | BC-12 C18, C21 J 5AC-384 C19 3HC-274 C20 LC-65 C26 3CC-302 C31 3LC-297A C32, C33 ZZC-211 C34 XXC-207 C35, C36 6QC-437 COMPILED BY M. N. Two-ba

6、nd antenna coil with 455 kc wave-trap. Two-band oscillator coil. 455 kc first i-f transformer. 455 kc second i-f transformer. 50,000 ohm |4 watt carbon resistor. 1,000 ohm 14 watt carbon resistor. 3 megohm Yu watt carbon resistor (see production change no. 2) . Volume control250,000 ohms with line s

7、witch (see production change no. 2) 15 megohm (4 watt carbon resistor. 500,000 ohm J/4 watt carbon resistor (see production change no. 1). 140 ohm % watt wire-wound resistor. 250,000 ohm *4 watt carbon resistor. 1 megohm J4 watt carbon resistor. Plug-in type ballast resistor. Interchangeable with L4

8、9D. Two-gang variable condenser. 0.001 mf, 600 volt tubular condenser. 0.00064 mf mica condenser. Dual trimmer assembly. 0.000025 mf mica condenser. 0.05 mf, 400 volt tubular condenser. 0.05 mf, 200 volt tubular condenser. 0.0002 mf, 600 volt tubular or mica condenser. 0.002 mf, 600 volt tubular con

9、denser. 0.02 mf, 400 volt tubular condenser. 0.15 mf, 200 volt tubular condenser . 0.01 mf, 400 volt molded condenser (for a.c.-d.c. motors only). 0.03 mf, 200 volt tubular condenser. - 0.005 mf, 400 volt tubular condenser. Multiple 20 and 40 mf, 150 volt dry electrolytic condenser. . C3520 mf C3640 mf BEITMAN, SUPREME PUBLICATIONS mm 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN