Noblitt-Sparks-Industries-Inc-172401 电路原理图.pdf

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1、VOLUME R-23, MOST-OFTENNEEDED 1963 RADIO SERVICING INFORMATION A MODEL 72P33 MODEL 72P03 RC 1 f270 Tisesl- (D si I8FX6 /TN lr rtf |6 3mr T K 4J j ! top CODE 1.72401 CODE 1.68301 01 100 K XCZ /“CHASSIS i-.B- -& EXTERNAL CON NECTIONS TO PRINTED BOARD. voltages measured WITH A YTV.M. U.X T.J -CQpjLiy-

2、nw VOL. CONTI I- 13.0 V iBOO.* J PRI. * C6 RESISTANCE VALUES ARE IN OHMS M.OOO.MEG-I.OOOOOO. CAPACITANCE VALUES LESS THAN (HARE IN MICROFARADS (M f AND VALUES OF(l) OR GREATER ARE IN MICROMICROFARADS (MMf ),UNLESS OTHERWISE INDICATED. IBFY6 IBFW6 BFX6 32ET5 43 43 43 34 ZOOtyt V 6oomv/m 5000/i V 500f

3、t V/M ALIGNMENT PROCEDURE PRELIMINARY: Output meter connection.AcroSB Bpeaker voice coil Output meter reading to indicate 50 milliwattB (standard output). 1.26 voltB Connection of generator ground lead.Floating ground Generator modulation.30% 400 cycle b Position of Volume Control.Fully clockwise Po

4、sition of Variable Frequency of Generator Dummy Antenna Generator Output Connection TrimmerB Adjusted in Order Shown for Maximum Output Func tion of Trimmer 455 Kc 1640 Kc 1400 Kc 1000 Kc 600 Kc .05 p fd Pin 7 18FX6 * TeBt Loop * TeBt Loop * TeBt Loop * TeBt Loop Al, A2. A3, A4 A5 A6 Fan C 1A Plate b Fan C1A Plate b I.F. Oscillator Antenna *Stanoard Hazel tine TeBt Loop Model 1150 or 3 turns of wire about 6 in diameter placed about one foot from the set loop. 19 收音机爱 好者资料库 RadioFans.CN