Detrola-Radio-and-Telev-Corp-165 电路原理图.pdf

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1、MANUAL OF 1939 MOST POPULAR SERVICE DIAGRAMS Detrola Radio and Television Corporation DETROIT, MICHIGAN Symbol Part No. Description Cl 3814 9-400 mmf Variable C2,3,4 3822 2-3 5 triple trimmer C5,6,7 3822 2-3 5 triple trimmer C8,9,10 3822 2-3 5 triple trimmer Cll,21,34 572 .1-200 V. C12,14,23 580 .05

2、-200 V. Cl 3 575 .1-400 V. C15,24 2780 50 mmf mica C16,35 568 .01-400 V. C17 2694 .005 5% tolerance C18 2741 1330 mmf 5% tolerance C19 2560 350 mmf variable padder C20,22,44 IF Trimmer C25 4072 .03-200 V. C26 26St5 .003-600 V. C27 824 .002-600 V. C28,29 576 .02-400 V. C30 1286 25 0 mmf mica C31,33 2

3、600 .02-600 V. C32,36 563 .05-400 V. C37,38 3138 .001-800 V. C39 3113 1 6 MF regulating C40 3136 20 MF 25 V. C41 3112 16 MF 450 V. MO DE L 165 C42 3111 16 MF 500 V. C43 3135 .003-800 V. Rl,5,15,26 603 100 M 1/3 W. R2,3 631 50 M 1/3 W. R4,16,21 615 500 M 1/3 W. R6 2693 2 meg 1/3 W. R7 3799 2 meg tone

4、 control R8 2568 300 M 1/3 W. R9,23 617 20 M 1/3 W. RIO 3800 3 meg volume control Rll,12 624 1 meg 1/3 W. R13,14,22 2421 1 M 1/3 W. R17 2880 100 M 1/3 W. 10 % R18 614 5 M 1/3 W. R19 2731 500 M 1/3 W. 10% R20 598 200 M 1/3 W. R24 3805 7 M 3.5 W. R25 3805 8 M 1.5 W. R2; 3809 100 ohms 2 W. 10% R28 3806

5、 120 ohms 1.5 W. 10% R29 4111 85 ohms 1.0 W, 1 0 % R30 2106 3 meg 1/3 W. R31 3870 15 ohms .5 W. 10% R32 3801 2 M variable Using-400 ohm resistor in series with generator, set band selector in center position, set generator to 5400 kc and adjust oscillator trimmer for top frequency. Set generator to

6、5000 kc. tune receiver to signal and adjust antenna trimmer. Turn band selector to extreme clockwise position. Using 400 ohm resistor in series with generator, set oscillator top frequency for 15,750 kcscrew trimmer down tight, then unscrew to second peak. Set generator to 15,000 kc, tune receiver t

7、o signal and adjust antenna trimmerScrew trimmer down tight, then unscrew to first peak, rocking the tuning condenser back and forth through the signal while the adjustment is being made. Above procedure for alinement at 15,000 kc must be followed exactly to insure proper tracking. A dead spot at about 12,000 kc will result if antenna and oscillator circuits are not set in proper relation to each other. 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 收音机爱 好者资料库 RadioFans.CN