Crosley-Corp-168 电路原理图.pdf

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1、MANUAL OF MOST-OFTEN-NEEDED RADIO DIAGRAMS The Crosley Radio Corporation, Cincinnati, Ohio Model 168 Specifications Model 168 is a seven tube dual band super heterodyne designed for operation from A.C. electric circuits. The intermediate frequency is 181.5 Kc. Tubes and Voltage Limits The following

2、are the tubes and voltages measured with the receiver in operating con dition but with no signal to the antenna cir cuit. Line voltage should be 117.5 volts (235 volts for 220 volt receivers). All voltages, except filament, are measured from tube con tact to chassis with a 500 volt D.C. voltmeter (1

3、000 ohms per volt). Filament voltages are measured with a low range A.C. voltmeter. Tube Position Oscillator Modulator I. F. Amplifier I. F. Amplifier Detector and A. F. Amplifier Output Rectifier Plate Screen Grid Cathode Suppressor Grid Filament 66 6.5 2.5 270 122 8.0 8.0 2.5 270 122 8.5 8.5 2.5 270 122 7.0 7.0 2.5 231 2.0 2.5 257 270 18.0 2.5 380 4.9 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN