Noblitt-Sparks-Industries-Inc-140900 电路原理图.pdf

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1、VOLUME R-17, MOST-OFTEN-NEEDED 1957 RADIO SERVICING INFORMATION Arvin INDUSTRIES, INC. Model 9562, Chassis 1.40900 Output meter reading to indicate 50 milliwatts. . . . . 0.4V Output meter connection.Across speaker voice coil Connection of generator ground lead.Common Ground Generator Modulation.30%

2、 40 cycles Position of volume control.Fully Clockwise Trimmers Adj. Function in order shown of for Max. Output Trimmer Position of Variable Generator Frequency Dummy Antenna Open 455 Kc .05 pf Open 1670 Kc 1400Kc 1400 Kc 600Kc 600 Kc CIA Test Loop Test Loop Test Loop Al, 2,3,4 A6 A7 Check Point Stan

3、dard Hazeltine Test Loop Model 1150 or 3 turns of wire about 6” in diameter placed about one foot from the set loop. The alignment procedure should be repeated in the original order for greatest accuracy. Always keep the output from the signal generator at its lowest pos sible value to make the AVC

4、action of the receiver ineffective. WARNING: Since a DC voltage exists across the oscillator section (C1B) of the variable capacitor, it is recommended that the plates in this section not be ad justed unless absolutely necessary for calibration purposes. (HD EE) - T* 21,1,4 Ten WWT CT CELLS * (S) BA

5、SE 1 15 lEtEMlTTER TRANSISTOR LAYOUT BOTTOM V*W) RESISTANCE VALUES ARE I CAMCITANCE VALUES LESS THAN 10 ME N MICROFARADS VALUES GREATER THAN 1.0 ARC IN Micro-MICROFARADS lotff) EXCEPT WHERE NOTED. VOLTAGE READINGS TO COMMON GROUND ARE MEASURED WITH VACUUM TUBE VOLTMETER UNDER NO SIGNAL CONDITIONS WI

6、TH TUNING CAPACITOR CLOSEO AND VOLUME CONTROL AT MAXIMUM CLOCKWISE ROTATION. COMMON GROUND SYMBOL. 5) EXTERNAL CONNECTION TO PRINTED CIRCUIT POSITION WITH VARIABLE AT MAXIMUM CABVCITY 2 TURNS- SERES INPUT FOR signal test i camcitor .os watt output TEST POINT FREQUENCY TO GENERATOR !( 0.4 V ACROSS VC) 14 290 UV 收音机爱 好者资料库 RadioFans.CN