Noblitt-Sparks-Industries-Inc-RE-348 电路原理图.pdf

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1、MANUAL OF 19S4 MOST-OFTEN-NEEDED RADIO DIAGRAMS ARVIN Industries, Inc. Model 753T, Chassis RE-348 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

2、 Generator modulation.30% 400 cycles Position of volume control. Fully clockwise Position Frequency of of Dummy Variable Generator Antenna Generator Trimmers Adjusted Output in Order Shown for Connection Maximum Output . 05 mfd. Pin 7 12BE6 A1,A2,A3,A4 .Test Loop A5 * Test Loop A6 * Test Loop Check

3、Point Function of Trimmer I. F. Oscillator Antenna * Standard 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

4、generator at its lowest possible value to make the AVC action of the receiver ineffiective. Note: Some sets were built without C8 capacitor lOOOuuf Disc, and R9 resistor 68K 1/2W 20%. . C6 capacitor . 02 was . 05. _ _ TORSION SPRING 2TURNS TUBE LAYOUT EXTERNAL ANTENNA (BLUE) ff ? _TtNSI0N / SPRING TUNING CAPACITOR FULLY CLOSED STRINGING DIAGRAM LOCATION OF PARTS UNDER CHASSIS Tl I El ESI T2 EH _ a Li _ u _ r r 收音机爱 好者资料库 RadioFans.CN