RCA-Victor-Co-Inc-9TX-50M 电路原理图.pdf

《RCA-Victor-Co-Inc-9TX-50M 电路原理图.pdf》由会员分享，可在线阅读，更多相关《RCA-Victor-Co-Inc-9TX-50M 电路原理图.pdf（3页珍藏版）》请在收音机爱好者资料库上搜索。

1、PAGE 246-C MODELS 9TX-50, 9TX-50M, 2nd Production (Chassis No. RC -454) MODELS 40X-52, 40X-55, 2nd Production (Chassis No. RC -453) Five -Tube, Single -Band, AC -DC, Superheterodyne, Loop Receivers Model 40X-52 40X-55 9TX-50 9TX-50M Model 9T. -30 Description IVORY MODEL Ivory Finish HONEY MAPLE MODE

2、L Honey maple finish. Light Mahogany Cabinet Regular Mahogany Cabinet Model 40X-55 Electrical and Mechanical Specifications Model 40X-52. FREQUENCY RANGE 540-1,650 kc POWER SUPPLY RATINGS Intermediate Frequency 455 kc A -C Rating 105-125 volts, 50-60 cycles, 30 watts D -C Rating 105-125 volts, direc

3、t current, 30 watts TUBE COMPLEMENT (1) RCA-2SA7 1st -Detector -Oscillator POWER OUTPUT (125 volt, GO cycle supply) . (2) I2CA-12SK7 (3) RCA-12SQ7 (4) RCA-60LGGT I -F Amplifier 2nd -Detector, 1st A -F and A.V.C. Power Outpdt Undistorted .6 watts Maximum 2.0 watts (5) RCA-35Z5GT Half -Wave Rectifier

4、LOUDSPEAKER Dial Lamp (1) Mazda 51, 7.5 volts, 0.2 amp. Type 5 -inch Electrodynamic MODELS 9TX-50, 9TX-50M 2nd Production, RC -454: Add Stock No. 33613 Back-Back cover and loop complete. MODELS 40X-52, 40X-55 2nd Production, RC -453: Add Stock No. 35612 Back-Back cover and loop complete. Replacement

5、 Parts Insist on genuine factory -tested parts, which are readily identified and may be purchased from authorized dealers. STOCK No. DESCRIPTION STOCK O K DESCRIPTION CHASSIS ASSEMBLIES 32545 Control-Volume control and power switch (40X - (RC -453, RC -454) 33291 52, 55) Control-Volume control and p

6、ower -switch (9TX- 34444 Bracket-Dial and lamp support (9TX-50, 50M) 50, 50M) 34447 Capacitor-Mica trimmer, 2.5 to 30 mndd. (C1) 32634 Cord-Tuning condenser drive cord 13057 Capacitor -60 mmfd. (C5) 34567 Drum-Variable tuning condenser drive drum 4838 Capacitor-.005 mfd. (C14, C15) (40X-52, 55) 4937

7、 Capacitor-.01 mfd. (C16) 34446 Eyelet-Used as pulley for drive cord (9TX-50, 11315 Capacitor-:015 mfd. (C17) 50M) 32787 Capacitor-.05 mfd. (C18) 11765 Lamp-Dial lamp 4839 Capacitor -0.1 mfd. (C12, C24) 34445 Pointer-Dial pointer (9TX-50, 50M) 12484 Capacitor -0,25 mfd. (C6) 14439 Resistor -100 ohms

8、, I watt (R13) 34597 Capacitor-Electrolytic comprising 1 section of 20 13428 Resistor -150 ohms, watt (R9) mfd. and 1 section of 12 mfd. (C19, C20). 13998 Resistor -22,000 ohms, watt (R1) 34592 Coil-Loop loading coil 12264 Resistor -220,000 ohms, watt (R2, R7) 34443 Coil-Oscillator coil 12285 Resist

9、or -470,000 ohms, watt (R8) 34448 Condenser-Variable tuning condenser (40X-52, 12679 Resistor -2,2 megohm, 4 watt (R4) 55) 13601 Resistor -10 megohm, watt (R6) 34440 Condenser-Variable tuning condenser (9TX-50, 50M) 33061 Shaft-Tuning condenser drive shaft (40X-52, 55) RCA VICTOR DIVISION OF RADIO C

10、ORPORATION OF AMERICA, CAMDEN N. J., U. S. A. 收音机爱 好者资料库 RadioFans.CN PAGE 247-C 9TX50, -M, 140X52, 140X55 Replacement Parts (Continued) STOCK No. DESCRIPTION STOCK No. DESCRIPTION 34332 Shaft-Tuning condenser drive shaft (9TX-50, 50M) SPEAKER ASSEMBLIES 40X-55 (RL86-1) 34449 Socket-Dial lamp socket

11、 31319 Socket-Tube socket 32907 Cap-Dust cap 30585 Spring-Tuning condenser drive cord spring (40X52, 55) 35066 34450 Cone-Cone complete with voice coil Speaker -5 dynamic speaker complete with cone 31615 34441 Spring-Drive cord spring (9TX-50, 50M). Transformer -1st I.F. transformer 35056 and voice

12、coil less output transformer Transformer-Output transformer 34442 Transformer -2nd I.F. transformer SPEAKER ASSEMBLIES MISCELLANEOUS (40X-52, 9TX-50 and 9TX-50M) 55) (39223-1) 33744 33289 Dial-Dial scale-glass (40X-52, Dial-Dial scale (9TX-50, 50M) 35065 Cone-Cone complete with voice coil 34016 Knob

13、-Walnut tuning or volume control knob 34450 Speaker -5 dynamic speaker complete with cone and voice coil less output transformer 34015 (40X-52, 55) Knob-Tuning or volume control knob (9TX-50, 34174 Transformer-Output transformer 50M) Alignment Procedure Output Meter Alignment -Connect the meter acro

14、ss the voice coil. and turn the receiver volume control to maximum. Test-Oscillator.-Connect the low side of the test -oscillator to the receiver chassis, through a .01 mfd. capacitor, and keep the out- put as low as possible. Steps Connect the test oscillator to- Tune test-osc. to- Turn Radio Dial

15、to- Adjust the follow - ing for maximum peak output 1 Tuning Condenser stator (ant.) in series with .1 mfd. 455 kc Quiet point at 1,600 kc end of dial C7, C8, C9 (1st and 2nd I -F transformers) 2 Radiation Loop consisting of 2 turns of wire 18 in. in diameter located 4 to 6 feet from receiver 1,650

16、kc Full clockwise (out of mesh) C4 (oscillator) 3 600 kc Resonance on 600 kc signal LI (Loop inductance) 4 1,400 kc Resonance on 1,400 kc signal C2 (Antenna) LOOP LOOR LOADING COI L 1T 067.6 05G I. F. AMPL. 125A7 BOITOM V,tw 25K li/F,E rS 9v. ( 6I. ANT. 00 ItC. 3.11 mI.T I. TMN4 9N ,GOEEN LIND I.E -

17、AA Ns. /1 7-7-.t 73, 35ZSGT 12557 t . 2507 !,Kb,-._./ K -,m U1 -fi .I40oN,Kr . 30L66T, 12EtA7 c40501 -2 -21600 . 4SSKC d/ BIST I A TJer AND TRIMMtR LOCATIONS TRANS Precautionary Lead 1. Green and blue leads from 1st I.F. transformer must be kept separated. 2. Dress yellow lead from loudspeaker under

18、 green lead front hum bucking coil to prevent it from touching the 50L6GT. Antenna.-The set is equipped with a built-in loop antenna. If an outdoor antenna is used, it may he connected to the ANT terminal on rear of cabinet. It should not be longer than 101) feet. including lead-in. If it is longer,

19、 connect a 100 to 200 mmf. ca- pacitor in series with the lead-in. Power -Supply Polarity.-For operation on d -c, the power plug must be inserted in the outlet for correct polarity. If the set does not function, reverse the plug. On a -c, reversal of the plug may re- duce hum. Victrola Attachment -A

20、 jack is provided on the rear of cabinet for connecting a Victrola Attachment into the audio -amplifying cir- cuit. The cable from the Victrola Attachment should be terminated in a Stock No. 31048 plug to fit the jack. DfT,A.F A.VC ti SQ7 55V. (UfI OArII VOI real 2rll,.I.E 044 500E R3 MODELS RIN 1r

21、47,000 OMITTED AND OMITTEO AN - - COMMON - GND. 5i50LT 2 U-.2 12507J /Th SZJN I TUBE _0C-T121N ON 500E MOOt_S , IN7ICATES CNA55,5. CREEN c9 D BLACK C 12 4- O. 1 MFD. Rs VOL. CONTROL 250. 0002. VICTROLA I I -.-k MED cIS 005 MCD. R6 q MEC, C 24 0.I MCD, 35Z5GT-REGT C IB T .05 O. sAr.r I,ED OUT PUT 50l.6GT C 16 .01 MCD. RB 415.000 K433 2C 6 RED VVBo BLUE 400n 2D 20 Neal- jY112 MCD. tlLACK . isy-, YS/r rsOr Cn .015 MID. 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN