Western-Auto-Supply-Co-D2622 电路原理图.pdf

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1、MANUAL OF 1947 MOST-OFTEN-MEEDED RADIO DIAGRAMS 7 TRUETONE MODEL D2622 I2SA7 I2SK7 l2SQr 50L66T 35Z56T 1.E 45-5 KC. ALTERNATE FILTER CIRCUIT USED ON EARLIER MODEL TO PIN 8 SSZ98T CHASSIS GROUND A*4S8 KC. CONDENSERS Symbol Copadly Typo Cl.1 mH.200 V. C2.00005 mH.AUco C3. .02 mM.400 V. C4.01 mH.400 V.

2、 C5.01 mH.400 V. C6.00025 mH.AUco C7.0005 mH.AUco C8.02 mH.400 V. C9a.30. mfd. (Elocf.).150 V. Cb.30. mH. (Elf.).150 V. CPc.20. mH. (Elt.).150 V. CIO.2 mH.400 V. Cll.05 mH.400 V. C12.005 mH.600 V. Cl3a.00042 mfd. (max.).Var. C13b.00018 mfd. (max.).Var. C14.00002 mfd.iAica C20a.30. mH. (ElKt.).150 V.

3、 C20b.50. mH. (ElKt.).150 V. C20 1020 T 1.1.11.6 TO 8- RESISTORS I Symbol Rothtonco Typo R1_ 22C00 ohmi .CVW R2.470,000 ohm -.CWH R3. 10 megohm* .CVW R4.220,000 ohm. .C%W R5.470C00 ohm. .C%W R6. 150 ohm. . CVW 117.150,000 ohm. .C%W Rtl R9 RIO C!L cL Q o.|o 0 -09 QMD QSHQy (Zr (2807 (28A7 (28K7 50L80

4、T VOLTAGE DATA:- 117 rii0 AC. 50L66T S/ 82 I# A-c- -.eJO) ” ( R8. 1 megohm Volume Control R9. 130 ohms .CIW RIO. 1,000 ohms -.CIW Rll. 33 ohms .ClW COILS . Lo .1st I. F. Trans. .2nd l.F. Trans. _.Oss. Coll OSCILLATOR COIL 8LANy 0/ TOTAL 5 OHMS a START g 4.5 Mill 6 gOHMS I 12SA7 0 FRONT OF CHASSIS co

5、wtbol| r Bottom View of Chassis, Showing VJtages All readings made between Tube Socket Terminola and Switch Lug on volume control (Point X on drawing). Measured on a 117 Volt A.C. line. Volume control full on. Dial tuned to low frequency end, no signaL Voltages indicated obtained on Vacuum Tube volt

6、meter. A second voltage reading is shown made with a 1000 ohm- per-volt meter when use of this instrument would result in appreciably lower readings. DIAL STRINGING AND POINTER SETTINGS;- _ POINTER EXTREMES INDICATED BY HOLES IN DIAL BACKSNOUNO I l.5.Choko, Fillor NET . BOD 480 4D0 390 900 ZSD ZOU N

7、ET VOLUME CONTROL AND ON-OFF SWITCH STATION SELECTOR CONTROL MODEL D2622 600 KC. SETTING INDICATED BY HOLE IN DIAL BACKGROUND 1400 KC. SETTING INDICATED BY HDLC IN DIAL BACKGROUND 174 NOTE- DIAL BACKGROUND SHDWN TRANSPARENT TO CLARITY STRINGING-62* OP CORD REOUIRED CAN6 IS IN CLDSED PDIITIDN 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