Detrola-Radio-and-Telev-Corp-390 电路原理图.pdf

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1、MANUAL OF 1942 MOST POPULAR SERVICE DIAGRAMS DETROLA CORPORATION MODEL390 I25A76T I2K7GT I25076T J5L66T 35L66T trjs-nxs. control jwrCH SWITCH SHOWN IN No.1 (RADIO) POSITION-EXTREME COUNTER CLOCKWISE ROTATION SWITCH SECTIONS ARE SHOWN AS VIEWED FROM FRONT VOLTAGES INDICATED AT SOCKET TERMINALS ARE ME

2、ASURED FROM TERMINAL TO CHASSIS ON II7V0LT LINE WITH NO 5I6NAL Schematic Part Location Number Description CHASSIS PARTS 4417 Button, Snap (Dial Mounting) 8931 Cable, Tuning Tube 2163 Cable, drive 3227 Cap, Grid R18 8910 Control, Volume and Switch 1732 Cord, Line 6424 Clamp, Linecord 4314 Clamp, Tapp

3、edFor Tuning Tube 4315 Clamp, PlainFor Tuning Tube L3 8422 Coil, Oscillator LI 8423 Coil, Tracking Cla,b B911 Condenser, Variable (with Pulley) C2,3 8504 Condenser, Dual Trimmer C15a,b,c 8425 Condenser, Electrolytic (20250) (20-150)(20-150) C4 Condenser, 100 Mmf. Mica C5,14 Condenser, 1 Mfd. 200 v.

4、C6 Condenser, .05 Mfd. 200 v. C7 Condenser, 250 Mmf. Mica C8 Condenser, 100 Mmf. Mica C9 Condenser, .002 Mfd. 600 v. CIO,16 Condenser, .01 Mfd. 400 v. Cll Condenser, .05 Mfd. 400 v. C12,13 Condenser, .001 Mfd. 600 v. C17 Condenser, .005 Mfd. 600 v. 7209 Grommet, Tuner Assembly Mtg. 9121 Dial Chart 8

5、941 Microphone Socket Assembly 6244 Pulley, Idler 5026 Pointer 6158 Pitot Lite 1207 Retainer, C Washer (Holds Ti Schematic Part location Number Description 113,4,14,16 Resistor, 1 Meg. l/3 Watt R5 Resistor, 10 Meg. 1/3 Watt R6,7,8,9,11 Resistor, 200M. 1/3 Watt RIO Resistor, 120 Ohm, 1/2 Watt R12 Res

6、istor, 1000 Ohm, 1 Watt R13 Resistor, 35 Ohm, 1/2 Watt R15 Resistor, 2 Meg. 1/3 Watt R17 Resistor, 1 Meg (in Tuning Tube Socket) R19,20,21,22 Resistor, 50M, 1/3 Watt R23 Resistor, 4 Meg. 1/3 Watt RECORDING ARM ADJUSTMENTS NEEDLE retaining SCREW J needle PRESSURE SCREW _ HEIGHT ADJUSTING screw- Shaft) R1 Resistor, 20M, 1/3 Watt R2 R.sistor, 200 Ohm, 1/3 Watt COMPILED BY M, N. BEITMAN, SUPREME PUBLICATIONS 37 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN