Westinghouse-Electric-Corp-WR258 电路原理图.pdf

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1、MANUAL OF 1939 MOST POPULAR SERVICE DIAGRAMS 4Aa OCT. i, 05C ea7-G 2 oer -AF-AVC 330-9SO (50.1060 050-1500 OlAL. 100-400 70-290 20160 F MMF MMff P4Mr ANTENNA TRIMMERS I Direction of R6- SWITCHES Ltj t-li| L West inghouse Radio ( OH SPEAKER PLUG R260 employs all features of the WR25S and in a tuning

2、band covering from 1,550 to 2,500 kc and police reception. It also has a twopoint VOLUME CONTROL TONE CONTROL S3 CATHODE CURRENTS (1) 6A0-G.-_d M.A. (2) 6K7_H.l M.A. (3) 6Q7-3_0.4eM.A. (4) 6Ke-e-22 M.A. TOTAL RECTIFIED V CLHiRENT 44M.A. NOTE: Values with star ( ) are operating voltages in t circuits

3、 with high serics-resistance. 170 WR-260 Bottom View of Chassis Showing Socket Voltages, Parts Location, and R-F Wiring Measurements made to chassis unless otherwise indicated, I with set tuned to quiet point and volume control at mini mum. Values should hold within approximately 20% with 117-volt a-c supply. 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