Sylvania-Electric-Products-519 电路原理图.pdf

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1、VOLUME R-16, MOST-OFTEN-NEEDED 1956 RADIO SERVICING INFORMATP N SYLVANIA Electric Products, Inc. Models 515, 519, 5151, Chassis 1-607-1, -2, -3 4 co a: go* 5u. cm r o: K S . e u tn _ o be . S c iS 3 “ tn rt 3 S a “ o 73 e * _ Hi K O) 3 5 T3 b0 o S C C c O rt Li *-* u g rt G 73 co Q) bO.Q CO G 3 is w

2、 -g 73 co rt Q) Q) u u t! a g -o CO 2 rt cd R 8)5 cn rt -5 C - Q) O 2 D I Pi bO rt *H co - G * g r a 3 73 O) G O) 6 g. D CD 73 b0 s rt C g ob- a O OU P. i co g G D.G M O I bO i ; c g o IS 143 收音机爱 好者资料库 RadioFans.CN VOLUME R-16, MOST-OFTEN-NEEDED 1956 RADIO SERVICING INFORMATION SYLVANIA Models 515,

3、 / Cl C3 519, and 5151, jra|l|imf Chassis (black) _| Inllfnllll Irfflffr TgS 1-607-1,-2,-3 /|nng fjj C |c2ANT.|fOSC.| R3 (Continued from ANy/kL2 osc. coiio preceding page connectorjfipzsX+p on other side.) PIN.S nunZJ L _.Ri VVifamr/ -dk: I_I VR4 ;5 cum R6 VOLUME 8 ON/OFF SWITCH m2AT6V) Ap T AVC.1/

4、W-PC PLATE uu u iu u u 7.6 5 4 I 3 2 I _ - ,/A2BE( si i ieenIHI osc./yr V DOTPUTffefc TRANSFORMER PINS (BLUE) ._ PARTS LAYOUT-TOP ALIGNMENT SETUP NOTES TEST EQUIPMENT HOOKUP ADJUST Set variable tuning capacitor plates fully open (minimum capacity). SIGNAL GENERATOR - hot* lead through . 1 mfd. capac

5、itor to junction of R1 (22 ohm) and pin 7 of VI (12BE6); ground lead to 12BA6 tube shield (neg ative B). Set generator to 455 KC. T2-D for MAXIMUM output T2-C for MAXIMUM output. Tl-B for MAXIMUM output. Tl-A for MAXIMUM output. AC VOLTMETER - across speaker voice coil. REPEAT for optimum performanc

6、e. Set variable tuning capacitor plates fully open (minimum capacity). SIGNAL GENERATOR - radiate signat to receiver through a loop of several turns of wire. Set gen erator to 1650 KC. C4 trimmer for MAXIMUM output. AC VOLTMETER - across speaker voice coii. Sat variable tuning capacitor plates so pl

7、ates are meshed approximate ly 3/16 inch. Adjust this setting slightly io eliminate any interfer ing signals. SIGNAL GENERATOR - radiate signal to receiver through a loop of several turns of wire. Set gen erator to a frequency corresponding to receiver tuning capacitor setting (until signal is heard

8、 through receiver speaker). C2 trimmer for MAXIMUM output. AC VOLTMETER - across speaker voice coii. V5 3SW4 V3 I2AT6 RETMA 720-C 32-86954-1 Q FILAMENT 11(1111111111 B+VOLTAGES 1-t V4 Jly“- V2 . J VI MM NEGATIVE B MM AVC saaa miscellaneous 50C5 I2BA6 I2BE6 PARTS LAYOUT - BOTTOM Models 519 and 5151 144 收音机爱 好者资料库 RadioFans.CN