Noblitt-Sparks-Industries-Inc-RE-342 电路原理图.pdf

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1、MANUAL OF 1954 MOST-OFTEN-NEEDED RADIO DIAGRAMS Arvin INDUSTRIES INC. Model 760T, Chassis RE-342 ALIGNMENT PRELIMINARY: Output meter connection.Across speaker voice coil Output meter reading to indicate 500 Milliwatts (Standard output).1.26 volts Connection of generator ground lead.Floating ground G

2、enerator modulation.30% 400 cycles Position of volume control.Fully clockwise Position Frequency Generator of of Dummy Output Variable Generator Antenna Connection Open 455 Kc .05 uf Pin 8 12SA7 Open 1650 Kc Test Loop * 1400 Kc 1400 Kc Test Loop * 600 Kc 600 Kc Test Loop * Trimmers Adjusted in Order

3、 Shown for Maximum Output Al, A2, A3, A4. A5 A6, A7 * Check Point Function of Trimmer I. F. Oscillator R. F. Antenna * Rock tuning shaft while A6 7J 1 riSn ” QE. 1 CIS i TUBE AN0 TRIMMER LAYOUT VOLUME CONTROL X 0IAL a SWITCH TONE LAMP TUNING LOCATIONS OF PARTS UNDER CHASSIS SSLS I2SK7 |2SA7 I2SK7 VOLTASt SCMMNtS TAKEN WITH II7V- A C LINE VOLTASC THCSC AEAMNSS TAKEN WITH VACUUM TUBS VOLTMCT 收音机爱 好者资料库 RadioFans.CN