RCA-Victor-Co-Inc-236-B 电路原理图.pdf

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1、PAGE 537-B MODEL 236-B Seven -Tube, Superheterodyne Battery Receiver Alignment Procedure Withgangcondenser fully meshed set pointer to coincide with dial reading of540Kc. STEP CONNECT HIGH SIDE OF TEST OSC. TO - TUNE TESTOSC TO - TURN RADIO DIAL TO ADJUST THE FOLLOWING FOR MAX. OUTPUT 1 1st De t. Gr

2、id in series with 0.01mfd 460 Kc Quietpoint near 600 Kc S&P of 2nd I -F Trans. 2 Antenna in series with 200 mmfd 1720 Kc1720 Kc C44C45 OSC. 3800 Kc600 Kc C40Rock Gang L -F Osc. 4 Repeat Step 2 MODEL 236 B ELECTRICAL SPECIFICATIONS Type and Number of Radiotrons1 RCA -1C6, 2 RCA -34, 2 RCA -30, 1 RCA

3、-32, 1 RCA-19-Total, 7 . 0 68Ampere Maximum B Battery Current21 M. A. Tuning Range540 K. C.-1720 K. C. Maximum Undistorted Output1 2 Watts Maximum Output2 2 Watts Total A Battery Current I LW. 3.0 PA 2.ov. I1. 2 21 AVE. 7.5V.111 135v. M.A. tOv.2.0v. is.! AMPL. 56 135v.P AMPL .f1) 6 .514 2300. CY) -1

4、 0 1 500 ILEA L1J P (-2 _ _2.0M. kzjimv. lu*0 viii 6 I AMA.30 v.* 3.0v./ 40v.* 3.4 0.3M.A. 3.0 M.A. 3.5* 2- I.r. TRANS. $P ites I_Sy 4-s %.9 OSC. COIL 135,4 0.610A - (C) NOv. o 130vw &o.sc 4.0 3.5v.* 7.5v. * THESE VOLTAGES CANNOT BE MEASURED WITH ORDINARY VOLTMETER. -Line-Up Capacitor Locations and

5、Voltage Values at Socket Contacts RCA VICTOR DIVISION OF RADIO CORPORATION OF AMERICA, CAMDEN N. J., U. S.A. 收音机爱 好者资料库 RadioFans.CN TRANSFORMER SO co 340 I.F. TRANSFORMER 131- I. F. TRANSFORMER RESISTOR BOARD CONNECTIONS 600Lo- CI7 10-100 wWD -YELLOW FRI5EC. BLUE - 3, I , 221 BLa - /ELL.- -GREEN T

6、&DE- DRIVER TRANSFORMER -REDB,C - TO OUTPUT TRANSFORMER I, ! atT RESISTOR BOARD CONNECTIONS oE-r 30 coo -C25 R9 2SooDo 2400 52 F, C27, 0.05 RFD. 1, AUDIO 32 Rii 250.000 .0. 221 LF/0. v i2 250000 DRIVER 30 C 53 CD, 2400 MINI/D - CO2 2400 INMFD Ai A.A.892- 9-2.4 .50 059v. 2.5v. Cf -Schematic Circuit D

7、iagram BROm1.1 - -5 151-11r HC EL RID50011.1 SO 0.0 MF ye.a. 71, 511-ACK - RED TF, OUTPUT 19 C 70 SPN R f-r CAM, CACI OSC. COIL 2 收音机爱 好者资料库 RadioFans.CN PAGE 539-B 236 B REPLACEMENT PARTS Insist on genuine factory tested parts, which are readily identified and may be purchased from authorized deale

8、rs Stock No. DESCRIPTION ListStock No. DESCRIPTION List RECEIVER ASSEMBLIES4538 Transformer-Third intermediate frequency 2747Cap-Contact cap-Package of 5 transformer (l 14, L15) 4498Capacitor -8 mfd. (C18) 4533Transformer pack-Audio transformer rack -Comprising driverand outputtrans - 4442Capacitor-

9、SO mmfd. (C10)former (T1, T2) 3981Capacitor -300 mmfd. (C25) 4535Volume control (R9) 4413Capacitor -360 mmfd. (C16) 2749Capacitor -2400 mmfd. (C26) REPRODUCER ASSEMBLIES 4801Capacitor -2400 mmfd. (C31, C32) 4541Cable -2 -conductor reproducer cable 4529Capacitor -2650 mmfd. (C33) 9432 Cone-Reproducer

10、 cone (L16) 4858Capacitor -0.01 mfd. (C29) 7820Magnet-Cone housing and magnet assembly. 4518Capacitor -0.05 mfd. (C27) 7819Reproducer complete 4836Capacitor -0.05 mfd. (C5, C19, C23, C24). 4234Rivet-Cone mounting rivet-Package of 100. 4906Capacitor -0.017 mfd. (C30) DRIVE ASSEMBLY 4791Capacitor -0.1

11、 mfd. (C8, C28) 4996 Dial-Station selector dial 4840Capacitor -0.25 mid. (C7) 4798 Drive-Variable tuning condenser drive as - 3861Capacitor - Adjustabletrimmercapacitorsembly complete (C17) 4363 Pointer-Station selector pointer 4796Coil-Antenna coil (L4, L5, RI, C4) 4669 Screw-No. 8-32-5/32 square h

12、ead set screw 4800Coil-Oscillator coil (L8, L9, C35) for condenser drive-Package of 10 4504Condenser -2 -gang variable tuning condenser4997 Shaft-Condenser drive shaft (C6, C9) 4370Resistor -1,000 ohms-Carbon type-/ watt-Package of 10 (R5) 4895 MISCELLANEOUS ASSEMBLIES Bezel-Metal bezel (escutcheon)

13、 and crystal 3602Resistor -60,000 ohms-Carbon type-N watt (R2, R7)-Package of 5 for station selector drive 3118Resistor -100,000 ohms-Carbon t ype-34 watt (R1, R4, R6)-Package of 5 4289 7867 Body-Fuse connector body-Package of 10. Cable -8 -conductor battery cable complete. 3744Resistor -250,000 ohm

14、s-Carbon type -34 4288Cap-Fuse connector cap-Package of 10. watt (R11, R12)-Package of 5 6516Connector-Fuse connector complete 6186Resistor -500,000 ohms-Carbon type-g watt (R13)-Package of 5 4286 Ferrule-Fuse connector ferrule and bushing -Package of 10 6242Resistor -2 megohms - Carbon type - g wat

15、t (R8, R10)-Package of 5 3748Fuse -0.5 ampere-Package of 5 4521Shield-Antenna, oscillator orI.F.trans- former shield 4290Insulator-Fuse connector insulator-Package of 10 7487 Shield-Second detector Radiotron shield- AVC 4449Knob-Station selector, volume control, tone or battery switch knob-Package o

16、f 5 3942 Shield-First detector and oscillator Radio- tron shield 4644 Resistor -0.38 ohms-Flexible type-Fila- ment series (R15)-Package of 5 3056Shield-First I.F., second I.F., first audio 4638 Screw-Chassis mounting screw assembly- 4794 Radiotron shield-Package of 2. Socket -4 -contact Radiotron so

17、cket. Comprising eight cushions, four screws, four washers, four lockwashers and four spacers 4784Socket -4 -contactaudio amplifier-Radio- Screw6 40knurled head-Set tron socket 3238% screw for operating switch knob No. 3088- 4786Socket -6 -contact detector -oscillator Radio- tron socket Package of 1

18、0 4613 Screw-8-32-4gs headless set screw for sta- 4785Socket -6 -contact output Radiotron socket. Lion selector volume control, tone control 4799Switch-Tone control switch (S3) or range switch knob-Package of 10 4284Spring-Fuse connector spring-Package of 10. 4431Transformer-First intermediate transformer (L10, L11, C13, C14, C15)4797Switch-Operating switch 7840Transformer - Secondintermediate trans- former (L12 L13, C20, C21, C22) 4285Washer-Fuse connector insulating washer- Package of 10 收音机爱 好者资料库 RadioFans.CN