RCA-Victor-Co-Inc-BC7-9 电路原理图.pdf

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1、Total A Battery Current PAGE 122-B MODELS BT 7-8, 13C7-9135-B 461FD. C 85-140 MMFD SW. 5, L2L3 0 41- 0 3-20 MMFD. C4 3-20 MMFD L4LS GREEN it YELLO ANT. TRAP ANT. COIL LbLT 32o Newt, L C3 32: OSC. COIL SLU IVDET 305C. 1-450 MMFDs 5W. 52 LW. 100;:00 8-40 ED - GREEN - 0 25 MFD CS 05 JOUR. COO ._, 2 ir_

2、., 1L2),.1258L,11.,8141;-: 4 . LbL7 /0 85 MO 0 0130 MNFO* Q Mg= MP. Rz 64100 4Ctiti 595W. SIV.W C9 5354 11-450 MMFD.LWLW. O.; MFD. CII. 340 MAIM Cr, M-100 MMFD L8 L9 0 0 0 2400 144F0. R3 1.000 oe O. 100.000 015 1 100 UMW C IS 05 MFD C23 NFDT COOCo2 85-14085-140 MMFDMMFD ry 34 LnL1) COO - .05 UFO R4

3、loo 000 3 50.50 0 2-D DET. A.V.C.I0 -AUDIO 3032 C29 LM Llk R9 55100 C 040%MMF Cl/ 05 MFD RIO no.00c C28- R.2.504014. DRIVER 30 TI 3740 001 COO 000 MMFD C 32 2400 MMFD OUTPUT 191 .0,D C33 2450 .10 I F. TRANSFORMER 2t I.F. TRANSFORMER LI5 50. 32 I.F. TRANSFORMER 041 /35 56 Co 01 51 000 A-A. 50C- C - 1

4、3- 1506.50.135 V.315 7.5V. Schematic Circuit Diagram NOTE: Models BT7-8 and BC? -9 R28. 574. DLDE - YELLOW.- -GREEN Ti BLUE - DRIVER TRANSFORMER - RED 430. -RED -BLACK. PA1 ACK-. 0 26. -REDBLACK - OUTPUT TRANSFORMER 90 CI; w ii Nc (.0 1:0to 收音机爱 好者资料库 RadioFans.CN PAGE i 24-B BT7-8, BC7-9, 135-B ,-.

5、7:NI1 1 .- /, v.,/, . ., -1OOSICL.00.51 BC/ Cfrs /- - -d 146600 K.C. ; P ek TRANS. (s 00 o 0 s/ P TRANS. V s , BOTTOM VIEW Location of Line -lip Capacitors 收音机爱 好者资料库 RadioFans.CN PAGE 1 2 5-B BT7-8, BC7-9, 135-B2)4235-B BT 7-8 and BC 7-9 REPLACEMENT PARTS Insist on genuine factory tested parts, whi

6、ch are readily identified and may be purchased from authorized dealers STOCK NO. DESCRIPTION LISTSTOCK NO. DESCRIPTION LIST RECEIVER ASSEMBLIES quency transformer (L12, L13, C20, C21, C22) 4427Bracket -Volume control or tone control mounting bracket 4538Transformer -Third intermediate frequency tran

7、sformer (L14, L15, R7, C45) 4244Cap -Grid contact cap- Package of 5 3861Capacitor -Adjustable capacitor (C17) DRIVE ASSEMBLIES 11289Capacitor -SO MMfd. (C10) 10194Ball -Steel ball -Package of 20 3794Capacitor -100 MMfd. (CU, C20) 4422Clutch -Tuning condenser drive clutch as - 3981Capacitor -300 MMfd

8、. (C25) sembly-comprising shaft, balls, ring, spring 1141 3Capacitor -360 MMfd. (C16) and washers -assembled 4801Capacitor -2400 MMfd. (C12, C31, C32). 11342Dial -Station selector dial 2749Capacitor -2400 MMfd. (C26) 4586Drive -Variable tuning condenser drive as - 4S29Capacitor -2650 MMfd. (C33) sem

9、bly-complete 4439Capacitor -3400 MMfd. ( C11) 4520Indicator -Station selector indicator pointer 5196Capacitor -0.035 Mfd. (C30) 4669Screw -No. 8.32 %2 set screw for variable 4883Capacitor -0.01 Mfd. (C29) condenser drive assembly -Package of 10 4518Capacitor -0.05 Mfd. (C27) 4836Capacitor -0.01 Mfd.

10、 (Cl, C19, C23, C24) REPRODUCER ASSEMBLIES 4841Capacitor -0.1 Mfd. (C8, C28) (TABLE MODEL -BT 7.8) 4840Capacitor -0.25 Mfd. (C7) 9539Cone -Reproducer cone -Package of 5- 11344Capacitor -8 Mfd. (C18) (L16) 4430Coil -Antenna coil (L2, L3, L4, L5, C3, C4) 9540Magnet assembly -Comprising cone bracket, c

11、ore, and magnet 4432Coil -Oscillator coil (L6, L7, L8, L9, C34, C35) 9538Reproducer -Complete -(L16) REPRODUCER ASSEMBLIES 4539Coilandshieldassembly -Antenna trap (CONSOLE MODEL -BC 7.9) circuit 9432Cone -Reproducercone -completewith 4504Condenser -Two -gang variable tuning con- voice coil (L16) den

12、ser (C6, C9) 7820Magnet -Cone housingandmagnet as - 11338Volume control-( R9 ) sembly 5112Resistor -1000 Ohms -Carbon type -1/4 Watt -(R5) -Package of S 7819Reproducer -Complete -(L16) 5029Resistor -56,000 Ohms -Carbon type -1/4 MISCELLANEOUS ASSEMBLIES Watt -(R2, R7) -Package of 511343Cable -Main b

13、attery cable complete with 3118Resistor -100,000 Ohms -Carbon type -1A three stock #11340 connectors, two stock Watt -(R1, R4, R6) -Package of 5:11341, connectors, two stock :6516 fuse 11323Resistor -270,000 Ohms -Carbon type -%4 Watt -(R11, R12) -Package of S connectors, two stock 43748 fuses -ex -

14、 cept, less one stock :11339 switch 5035Resistor -560,000 Ohms -Carbon type -V46516 Connector -Fuse connector Watt -(R13) -Package of 511340Connector -3 -contact male connector with 11151Resistor -2.2 Megohms-Carbon type -1A Watt -(R8, R10) -Package of 5 three small prongs -for B battery con - necti

15、ons 4521Shield -Antenna, oscillator, or intermediate frequency coil shield 11341Connector -3 -contact male connector with two small and one large prong for C- 3942Shield -First detector, oscillator Radiotron battery connections shield11337 Escutcheon -Station selector escutcheon. 7487Shield -Second

16、detector Radiotron shield6176 Escutcheon -Off -onoperatingswitch es - 3056Shield -First or second intermediate fre-cutcheon-Package of 5 quency, or first audio Radiotron shield-3748 Fuse -I/2 ampere F1 -Package of 5 Package of 26614Glass -Station selector dial glass 4532Socket -4 -contact firstaudio

17、Radiotron sockets 3088 Knob -Operating switch knob and screw - Package of 5 6980Socket -4 -contactintermediate frequency, seconddetectorordriver Radiotron 4449Knob -Station selector, volume control, tone or range switch knob -Package of 5 socket4644Resistor -.38 Ohms -Flexible type-Fila- 4232Socket

18、-6 -contactfirstdetector, oscillatorment series resistor -(R15) -Package of Radiotron socket S 4531Socket -6 -contact output Radiotron socket.4678 Ring -Dial glass retaining ring -Package of 1053 Switch -Tone control switch (S6)5 11339 Switch -Operating switch -less knob (stock 43088) and escutcheon

19、 (stock :6176)- 3238Screw -No. 6.40 17%2- Knurled head screw for knob, stock 3088 -Package of 10 (S5,S7)4945 Screw -Chassis mounting screw assembly - 4437 Switch -Range switch (Si, S2, S3, S4)Console Model 4533 Transformer -Audio transformer pack com- prisingdriverand outputtransformer 4446 Screw -:

20、Chassis mounting screw assembly - Table Model (TI, T2)4613 Screw -No. 8.12 746. headless set screw for 4431 Transformer -First intermediate frequency transformer -(L10, L11, C13, C14, CU) station selector volume control, tone con - trol switch, or range switch knob -Pack - 7840Transformer -Second in

21、termediatefre-age of 10 PAGE 126-B BT7-8, BC7-9, 135-B & 235-B 135-B & 235-B REPLACEMENT PARTS Insist on genuine factory tested parts, which are readily identified and may be purchased from authorized dealers Stock No. DESCRIPTION ListStock No. DESCRIPTION List RECEIVER ASSEMBLIES REPRODUCER ASSEMBL

22、IES 4427Bracket -Volume or tone control mounting (TABLE MODEL) bracket 9539 Cone -Reproducer cone -Package of 5 2747Cap -Contact cap -Package of 5 9540 Magnet assembly -Comprising cone bracket 4498Capacitor -8 mfd. (C18) core and magnet 4442 3981 Capacitor -50 mmfd. (C10) Capacitor -300 mmfd. (C25)

23、9538 Reproducer complete 4413Capacitor -360 mmfd. (C16) 2749Capacitor -2400 mmfd. (C26) 4440Capacitor -2400 mmfd. (C12, CM, C32). . DRIVE ASSEMBLY 4529Capacitor -2650 mmfd. (C33) 4422Clutch -Condenser driveclutchassembly 4439Capacitor -3400 mmfd. (C11) complete 4212Capacitor -0.01 mfd. (C29) 4641 Di

24、al -Station selector dial (console model). 4518Capacitor -0.05 mfd. (C27) 4588 Dial -Station selector dial (table model). . 4417Capacitor -0.05 mfd. (C5, C19, C23, C24) 4586 Drive -Variable tuning condenser driveas - 4643Capacitor -0.035 mfd. (C30) sembly complete 3877Capacitor -0.1 mfd. (C8, C28) 4

25、587 Pointer -Station selector pointer (table model). 4537Capacitor -0.25 mfd. (C7) 4363Pointer -Station selectorpointer (console 3861Capacitor - Adjustabletrimmer capacitor model) (C17) 4430Coil -Antenna coil (L2, L3, L4, L5, C3, C4). 4432 4539 Coil -Oscillator coil (L6, L7, L8, L9) Coil and shield

26、assembly -Antenna trap cir- MISCELLANEOUS ASSEMBLIES cuit (L1, Cl, C2)6706 Bezel -Metal bezel (escutcheon) for station 4504Condenser -2 -gang variable tuning condenser selector dial glass (table model) (C6, C9)6840 Bezel -Metal bezel (escutcheon) for station 4687Resistor -1,000ohms -Carbon type -ase

27、lector dial glass (console model) watt -Package of 10 (R3, R5)4289 Body -Fuse connector body -Package of 10. 3602Resistor -60,000 ohms -Carbon type-% watt (R2, R7) -Package of 5 4642Cable -Battery cable-8-conductor-Com- plete with switch and connectors(table 3118Resistor -100,000 ohms -Carbon type-%

28、 model) watt (R1, R4, R6) -Package of 54542 Cable -8 -conductor battery cable complete 3744Resistor -250,000 ohms -Carbon type-Yi with switch and connectors (console model). watt (R11, R12) -Package of 5 4288 Cap -Fuse connector cap -Package of 10. 6186Resistor -500,000 ohms -Carbon type -3,4 6516 C

29、onnector -Fuse connector complete watt (R13) -Package of 5 6176 Escutcheon -OFF -ON operating switch 6242Resistor -2 megohms - Carbon type - VI escutcheon -Package of 5 4521 watt (R8, R10) -Package of 5 Shield -Antenna, oscillator orI.F.trans- former shield 4286 Ferrule -Fuse connector ferrule and b

30、ushing -Package of 10 4103Shield -Driver Radiotron shield 3748 Fuse -0.5 ampere -Package of 5. 4145Shield -First detector and oscillator Radio- tron shield 6614Glass -Station selector dial glass(console model) 3056Shield -First I. F. amplifier Radiotron shield6707 Glass -Station selector dial glass

31、(table model). -Package of 2 4290Insulator -Fuse connector insulator -Package 4530Socket -4 -contact Radiotron socket of 10 4532Socket -4 -contact audio amplifier -Radio- 3088 Knob -Operating switch knob -Package of 5. tron socket 4449 Knob -Station selector, volume control, tone 4232Socket -6 -cont

32、act Radiotron socket controlor range switch knob -Package 4531 4534 4536 Socket -6 -contact output Radiotron socket Switch -Range switch (S1, S2, S3, 54, SW, LW) Tone control (R14) 4644 of 5 Resistor -0.42ohms -Flexible type-Fila- ment series (R15) -Package of 5 4431Transformer -First intermediate t

33、ransformer (L10, L11, C13, C14, C15) 6615 Ring -Retaining ring for dial glass -Package of 5 (console model) 7840Transformer - Second intermediatetrans- former (L12, L13, C20,C21, C22) 6708Ring -Retaining ring for dial glass -Package of 5 (table model) 4538 4533 Transformer -Third intermediate freque

34、ncy transformer (L14, L15) Transformer patk-Audio transformer pack -Comprising driver and outputtrans- 4638Screw -Chassis mounting screw assembly- Comprising eight cushions, four screws, four washers, four lockwashers and four spacers former (T1, T2) 3238Screw -6-40-% knurled head -Set screw 4535Vol

35、ume control (R9) for operating switch knob No. 3088- Package of 10 REPRODUCER ASSEMBLIES (CONSOLE MODEL) 4613Screw-8-32-fg headless set screw for sta- don selector volume control, tone control 4541Cable -2 -conductor reproducer cable or range switch knob -Package of 10 9432Cone -Reproducer cone (L16) 4284Spring -Fuse connector spring -Package of 10 7820Magnet -Cone housing and magnet assembly.4540Switch -Operating switch 7819Reproducer complete4285Washer -Fuse connector insulating washer - 4234Rivet -Cone mounting rivet -Package of 100Package of 10