Noblitt-Sparks-Industries-Inc-RE-378 电路原理图.pdf

MANUAL OF 19SS MOST-OFTEN-NEEDED RADIO DIAGRAMS arvin Industries MODEL 858T - 859T RE374 Model 857T, Chassis RE 378, is electrically similar to sets described on this page. If differs in physical respects and has a phono jack. ALIGNMENT PROCEDURE 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 Generator modulation 30% 400 cycleg Position of volume control Fully clockwise Position Frequency of of Dummy Variable Generator Antenna Generator Trimmers Adjusted Function Output in order Shown for of Connection Maximum Output Trimmer Open Open 1400 600 .05 jxf Pin 7 12BE6 * Test Loop * Test Loop * Test Loop Al, A2,A3,A4 A5 A6 on Check Point I.F. Oscillator Antenna * Standard Hazeltine Test Loop Model 1150 or 3 turns of wire about 6 in di ameter placed about one foot from the set loop. M2BE61 083/i2BA6/ 088/12*76/ /50C5 j I 35*4 1 <T? _y asc L_v T!-Cc6-1 ,_an LOCATION OF PARTS UNDER CHASSIS GENERATOR THROUGH STANDARD GENERATOR THROUGH OS*CONNECTED GENERATOR THROUGH OSAOCONNECTED gsI In I2BA6 hlEa sdI A C4 I T3 SPK POSITION OF PULLEY l with variable condenser 1 AT maximum capacity DIAL STRINGING DIAGRAM VOLTAGE READINGS SHOWN AT SOCKET PRONGS ARE TQ P- AND ARE TAKEN witm no Signal , ac une voltage at RING II7 V AC, MEASURED with VACUUM TUBE VOLTMEER. RESlSTANf- VALUES ARE IN OHMS K 1,000. TURNS MEG* 1.000,000. CAPACITANCE VALUES LESS THAN (I) ARE |N MICROFARADS, (“O, TURING StUFT A NO WLUES OF (I) OR GREATER ARE IN MiCROMICROFARADS, (W), UNLESS AM OTHERWISE INDICATED. PS POWER SOCKET FOR APPLIANCE I2AV6 I28E6 I28A6 SOCS 35W4 3 4 3434 343 6 . 35W4 16 收音机爱 好者资料库 RadioFans.CN