Montgomery-Ward-and-Co-14BR-684A 电路原理图.pdf

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1、MANUAL OF 1942 MOST POPULAR SERVICE DIAGRAMS 455 Kc. I. F. SIGNAL GENERATOR Frequency 1 Dummy Setting I Antenna Connection to Radio Dial Setting 455 Kc. .1 MFD. Connect to Grid of 1A7 Rotor full open (Plates out of mesh) 1600 Kc. .1 MFD. Connect to Grid of 1A7 Rotor full open (Plates out of mesh) 14

2、00 Kc. 200 MMF. Connect to Antenna Clip Trimmers Adjusted (in Order Shown) Input and Output Trimmers on Top of I. F. cans BROAD CAST BAND Ant. Trimmer on gang (See chassis view) IA7GT IN5GT IN5GT CONVERTER I.F.AMP. t.F.AMP. IH5GT 3Q5GT 2ND. OET. A.V.C. OUTPUT /(TS s. S 1ST. AUDIO CIS T2 OSCILLA COIL

3、. WARDS MOOa 14BR-6MA CONDENSERS v H5GTV (ECONOMIZER 1 SWITCH . _ -.-/Tl 10 OPERATE ON A JC. DC. V eATIERY, IAC CORD FLUC BLACK I LINE CORD ft iZst bc plucccd rrro 11 CHANGE CWER SWITCH. A+ /BLUE B + BOTTOM VIEW OF CHASSIS C20 .004 x 600 V. Tubular Condenser.- C2 .2 x 400 V. Tubular Condenser- C4, C

4、6 .01 x 120 V. Tubular Condenser- Cl .05 x 120 V. Tubular Condenser- C5 .lx 200 V. Tubular Condenser- C12 .006 x 120 V. Tubular Condenser- C7, CIO, C13 .25 x 200 V. Tubular Condenser_ 05, 04 .01 x 200 V.; .0001 x 200 V. Dual Tubular Condenser-=- C21 .1 x 200 V. Tubular Condenser- 06, Cl7, 08, 09 Ele

5、ctrolytic Filter Condenser 20 Mfd. x 50 V.; 40 Mfd. x 150 V.; 40 Mfd. x 150 V.; 200 Mfd. x 10 V. 50-60 Cycles _. C8 .0005 Mica Type Condenser20 %- C3 .0001 Mica Type Condenser20%- C9 .02 x 400 Volt Tubular Condenser_ RESISTORS VOLTAGES MCASUREO WITH A HIGH RESISTANCE VOLTMETER BETWEEN SOCKET TERMINA

6、LS AND S- LINE WITH NEW BATTERY AND ECONOMIZER SWITCH IN 3H0RTE0 POSITION. * MEASURED WITH V.T.V.M. I HSfiT IN5GT SO 90 2.5 75 jfsHSl 4 78 35Z5GT REAR OF CHASSIS R9_ R17 5 Megohm_j* Watt Resistor-25%_ IH5GT R4, R15 20 Ohm* Watt Resistor10%- R16 2S0 Ohm-* Watt Resistor10%_ Rll 2M OhmWatt Resistor10%-

7、. R10 15 Ohm5-5 Watt Resistor10%_ is R8 5M Ohmj4 Watt Resistor20%- R3, R6 3M OhmWatt Resistor20%_ 9o R22 700 Ohmj4 Watt Resistor10%- 90fiW)6.2 R2 200M OhmY$ Watt Resistor20%- 87/7.7 R5 65M Ohm Watt Resistor10%- Rl 1M Ohm Watt Resistor20%- 525GT 3Q5GT R12 47M Ohm- Watt Resistor20%_ R18 545 Ohm14 Watt W.W. Resistor5%_._ SSIS R19 1975 Ohm6 Watt W.W. Resistor5%_ R23 350 Ohm5-5 Watt Resistor10%_ 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