Philco-Radio-and-Television-Corp-80 电路原理图.pdf

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1、Model 80 COMPILED BY M. N. BEITMAN, SUPREME PUBLICATIONS Philco dadio 收音机爱 好者资料库 RadioFans.CN MANUAL OF MOST-OFTEN-NEEDED RADIO DIAGRAMS ai REPLACEMENT PARTS MODEL 80 ud 3 Description Prt No. (T) Volume ControlCombined with On-Off Switch. 7439 Antenna Transformer . . 05831 Tuning Condenser Assembly.

2、 05794 Compensating Condenser Antenna Part of Tuning Con. Assembly . Tj Condenser (710 Mmf.) White and Yellow 4520 Resistor (10,000 Ohms) . . . m Compensating CondenserI.F. Primary 04000-A Oscillator Cou. * * 5832 ( ) Resistor (9,000 Ohms). 7501 Condenser (.09 Twm).49898 Resistor (16,000 Ohms) Compe

3、nsating Condenser Low Fre- (g) Compensating Condenser High Fre quency Part of Tuning Con. Assembly. I.F. Transformer . 06834 f$ Resistor (4,000,000 Ohms) Mounted on I.F. Transformer.0010 Condenser (50 Mmf.) WhiteMounted on I.F. Transformer . . . 3774 Compensating CondenserI.F. Secondary. 04000-D Com

4、pensating Condenser. Resistor (1,000,000 Ohms).4409* (j Resistor (10,000 Ohms) . . . Condenser (1,000 Mmf.) Green and White 5215 ) Resistor (240,000 Ohms) . 4410 S PiW. T.icrht. 6608 No. on _ v, F14. 2 and 3 Description cert No. (S) Condensei (.016 Mfd.). 3793-B ifj) Resistor (490,000 Ohms) 4517* Co

5、ndenser (.006 Mfd.). 7625-B* m Output Transformer. 2660 () Voice Coil and Cone Assembly . 02861 Speaker Field and Bucking Coil As sembled with Pot. 02677* On-Off SwitchCombined with Volume Control .7439 (n) Condenser (.01 Mfd.) . . .3903-AH* Power Transformer 50-60 Cycles . . . 7421 Power Transforme

6、r 25-40 Cycles . 7422 Power Transformer 50-60 Cycles, 230 Volts 7423 (fi) Electrolytic Condenser (8.0 Mfd.) . . 6707 H Electrolytic Condenser (4.0 Mfd.) . . 7467 Resistor (325 Ohms) Wire Wound 7466* (p) Electrolytic CondenserDry(10 Mfd.) 7440* Condenser (.01 Mfd.) . 3903-AJ* Besel .7417 Dial Complet

7、e .05828 Tube Shield.7172 Knob (Large).03063 Knob (Small).3Q4 Knob Spring. 5262 Four Prong Socket Assembly. 5026 Five Prong Socket Assembly. 4956 Six ProngSocket Assembly.6417 Chassis Mounting Screw.W-567 Chassis Mounting Washer.W-315 Rubber Washer.5189 Pilot Lamp Shield. 5760 Pilot Light. 0000 .r.

8、L * A number of circuit changes were made on chassis of run No. 5 and above. This run number is rubber stunned in a star on the back of the chassis. Refering to Fig? 2 and 3, the condenser connects to the B- end of resistor instead of to ground. The bucking coil - that section of in series with the

9、voice coil - is shorted out. The 10 mfd. dry electrolytic condenser g) is eliminated, and replaced with a substitute .015 sectioncombined with , part 3T93R. The .01 mfd. condenser is eliminated. The positions of and are changem chassis from that shown in Fig. 8. 4 COMPILED BY M. N. BEITMAN, SUPREME PUBLICATIONS 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN