Crosley-Corp-548 电路原理图.pdf

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1、MANUAL OF 1939 MOST POPULAR SERVICE DIAGRAMS 收音机爱 好者资料库 RadioFans.CN MANUAL OF 1939 MOST POPULAR SERVICE DIAGRAMS PARTS USTMODELS 548 Riveted Dial Support Bracket, R. H.i Riveted Dial Support Bracket, L. H.! Dial Glass Dial Glass Clip, L. H. Dial Glass Clip, R. H. Dial Pointer (White) i Dial Hand Gu

2、ide | Dial Glass Cushion Dial Support Drive Shaft (5548) j Drive Shaft (548) Drive Shaft Bracket Drive Cord (44 Inches) Cord Clamp Drit?e Cord Spring Condenser, .0001 Mf. Molded Condenser, 15 Mf. 250 V. Elect. Condenser, .02 Mf. 200 V. Paper Condenser, .O0O175 Mf. Molded Condenser, .0014 Mf. 200 V.

3、Paper Condenser* .00025 Mf. Molded Condenser, .0014 Mf. 200 V. Paper Condenser, .02 Mf. 200 V. Paper Condenser, .004 Mf. 200 V. Paper Battery Cable, Model 548 Battery Cable, Model 5548 Resistor, 60,000 Ohms )-W. Carbon Resistor, 30,000 Ohms MW. Carbon Resistor, 3 Megohms 3W. Carbon Resistor, 100,000

4、 Ohms MW. Carbon Resistor, 11 Megohms MW. Carbon Resistor, 750 Ohms MW- Flex. Resistor, 100,000 Ohms MW. Carbon Resistor, 11 Megohms J W. Carbon Resistor, 100,C)00 Ohms MW. Carbon Resistor, 2,600 Ohms 1 MW. Flex. Resistor, 500,000 Ohms MW. Carbon Volume Control ) Switch “A” Supply Model 548 Switch “

5、B” Supply I Volume Control | Switch “A” Supply Model 5548 Switch “B” Supply Resistance Strip, 1.83 Ohms Tap at 1.1 Ohms Item No. 1 Part No. 1 Description W 40911 Tube Shield .38 274PL18“H” Speaker, Spec. S-4504 AMD5 46800 Speaker Cone Assembly 46802 Output Transformer 46803 Cardboard Ring 39 Gl 2671

6、9 Terminal (A-G) 40 G2 34002 Condenser, .0001 Ml- Molded Bottom View Model 548 Tube Function TUBE SOCKET VOLTAGE READINGS H P S G Ga Go 1C7-G Oscillator-Modulator 2.0 120 40 0 120 -3 1D5-G I-F Amplifier 2.0 120 40 0 - 1H6-G Detector & 1st A-F Amp. 2.0 50 - 0 1H4-G 2nd A-F Amplifier 2.0 50 0 1G5-G Output 2.0 123 129 -6 Power Output approximately .750 Watt. “A” Battery Drain approximately .42 Ampere at 2 Volts. “B” Battery Drain approximately 18 Milliamperes at 135 Volts. 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