Montgomery-Ward-and-Co-14BR-912A 电路原理图.pdf

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1、MANUAL OF 1942 MOST POPULAR SERVICE DIAGRAMS MONTGOMERY WARD MODEL 14BR-912A BOTTOM VIEW OF CHASSIS voltages measured with iooo ohm per vouf VOLTMETER, dETWEENSOCACJ TCRMMALS AND CHASSIS. * f*J *40 VOOA * KTWEkM PlM* 4 * r) *.0 VOkT* A.C.BfTwiM 4UM 2 * i.C) K WftH VOLHCt t a TUN MO CYE VOLTW.CS HIMW

2、U AT UM4W *NB Of (MU MUMMI WOLm* KO 2S CHECH 0 MOWN 8.1A.C. SLACK 0 RI 25 M ohm54 w. R2 25M ohm54 w. R3 I megohm4 w. R4 250 ohm54 w. R5 5M ohm4 w. R6 I megohm in tuning R7 12,500 ohm3 w. R8 1 megohm54 w. R9 25M ohm54 w. R10 300 ohm1 w. Rll 500M ohm54 w. R12 500M ohm54 w. R13 100M ohmJ4 w. R14 5M ohm

3、54 w. R15 100M ohm54 w. RI6 I megohm54 w. R17 500 ohm54 w. R18 500M ohm54 w. R19 500M ohm54 w. R20 250M ohm54 w. R21 2.8 megohmvolnme control R22 1.5 megohm54 w. R23 50M ohm4 w. R24 3 megohm54 w. R25 5 megohm14 w. R26 50 ohm54 w. R27 40M ohm4 w. R28 150M ohm4 w. R29 80M ohm54 w. Cl .0005 mica C2 .00

4、2 x 600 y. C3 B.C antenna trimmer C4 9 me. antenna trimmer C5 .0005 mica C6 .1 x 200 v. tubular condenser C7 .00001 mica C8 9 me. R.F. trimmer C9 B.C. R.F. trimmer CIO .1 x 400 v CII .1 x 400 y. C12 10.0 mfd. x 350 w. v. lytic CI2 10.0 mfd. x 350 w. v. lytic * 03 .0005 mica CI4 15.0 mfd. x 450 w. v.

5、 lytic 04 15.0 mfd. x 450 w. v. lytic 05 15.0 mfd x 450 w. v. lytic 05 15.0 mfd. x 450 w. v. lytic 06 B.C, oscillator trimmer 07 BE10071 .004 x 600 v. C 08 BE129167 .0002 silver mica 09 BE129165 .00005 mica C20 BE124145 9 me. oscillator trimmer C21 BE10013 .05 x 400 v. | C22 BE1009 .05 x 200 v. ! C2

6、3 BE10026 .02 x 400 v. C24 BE10020 .1 x 200 v. C25 BE12951 .000125 mica C26 BE1002 .003 x 300 v. C27 BE10026 .02 x 400 v. C28 BE12921 .0002 mica C29 BE10019 .006 x 600 v. C30 BE100139 .0015 x 200 v. C31 BE129165 .00005 mica C32 BE129165 .00005 mica C33 BE10061 .02 x 600 v. Bakelite C34 BE10061 .02 x

7、 600 v. Bakelite 6J5GT 6F6G*c SPCAKCA 0 SOCKET ON HE AK FIANCE TI2 T13 B.G. 9M.C OSC. OSC. REAR OF CHASSIS BAND T7 SWITCH B.C. 9M.C. , R.R R.F. 6SK7 view looking at bottom of chassis MI note: w!R:ng diagram shown in BROADCAST POSITION. 6SA7 6SK7 ANTENNA BANDSWITCH VIEWED FROM REAR d 6F6G _OUTPUT 6J5

8、GT or tuner socket he ate 6F6G 6SQ7 5V3G RECTIFIER Power Consumption (Motor Operating)129 Watts i 5 COMPILED BY M. N. BEHMAN, SUPREME PUBLICATIONS TIMING RANGES SKMOCAST BAND 540101600K.C 19 METER SAND 14.9 TO 13.4 M.C. 25METER SAND 11.4 TO (2.1 M.C. SI METER BAND 9.1 TOSOOM.C. 49METER BAND 5.9 TOAiM.C. SENSITIVITY 9 MICROVOLT AVE. SELECTIVfTV J5K.C. IOOO* OUTPUT SWATTS UNO!STORIED M VOCE COL. POWER CONSUMPTION 100 WATTS. I. F. 455 K.e. 7 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