Detrola-Radio-and-Telev-Corp-558 电路原理图.pdf

《Detrola-Radio-and-Telev-Corp-558 电路原理图.pdf》由会员分享，可在线阅读，更多相关《Detrola-Radio-and-Telev-Corp-558 电路原理图.pdf（5页珍藏版）》请在收音机爱好者资料库上搜索。

1、MANUAL OF 1947 MOST-OFTEN-NEEDED RADIO DIAGRAMS International Detrola Corp, FIVE-TUBE; BROADCAST BAND, AC Radio Chassis Model 558 UW0S2 Z-d U03W i -I o SOCKETS SHOWN FROM PIN END VIEW. ALL SWITCHES SHOWN IN COUNTERCLOCKWISE POSITION. SHAFT END VIEW 收音机爱 好者资料库 RadioFans.CN MANUAL OF 1947 MOST-OFTEN-N

2、EEDED RADIO DIAGRAMS International Detrola Corp. Radio Chassis Model 558 All DC voltages measured with a 1000 ohm-per-volt meter from ON-OFF switeh (B) to socket contact indicated. AU AC voltages are measured from ON-OFF switch (B) to socket contact indicated. TUBE POSITION m 2 3 D 5 6 7 8 Converter

3、 0 36.3 AC 108 108 -5.6 0 23.8 AC 0 12SK7GT IF Amplifier 0 11.4 AC 0 0 0 108 23.8 AC 108 12SQ7GT Detector1st Audio 0 0 0 0 0 43 11.4 AC 0 50L6GT Power Output 0 86 AC 100 108 0 0 36.3 AC 7.3 35Z5GT Rectifier 0 117 AC 112 AC 0 112 AC 0 85 AC 117 .3XSP-n(T-3;(C-9XC-6VVl(C-7;teV -3 R-2 L-2) Volume Contr

4、ol full on. No signal. Line voltage 117 volts AC. fl /n A / 0 0 rssfty (sl2 Intermediate Frequency and Oscillator adjustments may be made with the loop disconnected provided a resistor of 10,000 to 50,000 ohms is substituted to close the 12SA7GT grid circuit. The loop alignment must be done with the

5、 loop and chassis mounted in operating position in the cabinet. A single turn loosely coupled to loop may be substituted for RMA loop R-sYr-bYc-I |YR-7YR-4YCI0)R-6)(R-3)(C-5)( R-1 YCZ ALIGNMENT PROCEDURE GENERATOR CONNECTION AT RADIO DUMMY ANTENNA DIAL TO TUNE TRIMMERS REMARKS IF 455 kc. 12SA7GT grid .1 mfd. HF end IF trimmers C D E F Tune to max. 1620 kc. 12SA7GT grid RMA loop HF end Osc. trimmer B Set limit of band 1400 kc: Through loop* RMA loop 1400 kc. Ant. trimmer A Tune to max. Loop trimmer accessible through bottom of cabinet. 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN