RCA-Victor-Co-Inc-R-78 电路原理图.pdf

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1、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 PAGE 207-A MODELS R78 8. RAE84 Twelve -Tube, AC, Superheterodyne Receivers and Radio -Phonograph MODEL R78MODEL RAE 84 ELECTRICAL SPECIFICATIONS Voltage Rating 105-125 Volts Frequency Rating 50-60 Cycles Power Consumption -R 78

2、- 110 Watts Average (The kaput wattage may vary from70to 130 watts depending on the output volume being used) Power Consumption - RAE84- 130 Watts Average (The input wattage may vary from 90 to 150 watts, depending on the output volume being used) R 78 WITHOUT NOISE SUPPRESSION Type of Circuit. .Sup

3、er -Heterodyne with A.V.C., CompensatedA.F. systemand Class B output stage Type and number of Radiotrons4 RCA -58, 5 RCA -56, 2 RCA -46, and 1 RCA -82, Total 12 R78 L RAE 84 WITHNOISE SUPPRESSION Type of CircuitSuper -Heterodyne with A. V. C., Compensated A. F. System, Class B Output Stage and Noise

4、 Suppressor Type arid Number of Radiotrons. .1 RCA -55, 4 RCA -58, 4 RCA -56, 2 RCA -46, 1 RCA-82-Total 12 Undistorted OutputApproximately 20 Watts Maximum Type of Record ChangerPerfected RCA Victor Ten 10 -Inch Record Continuous Type Type of Pickup and Tone ArmLow Impedance Pickup with Inertia Tone

5、 Arm Type of MicrophoneTwo Button Carbon MAGNETIC PICKUP RECORD 40 T01 RATIO SUCH AS STOCK No.7445 -Connections for Attaching Magnetic Pickup Note: The above connections are for models not having noise suppressor.Identical connections are used for models having noise suppressor, except connections s

6、hown to terminal No. 5 are made to No. 4. RCA VICTOR DIVISION OF RADIO CORPORATION OF AMERICA, CAMDEN N. J., U. S. A. CD 16-325 1 wan I 241. 4801/14 TO newt air 600 .C.N1124C710401. _Lft a .1Wei O.;400400. 04 , 403340. Tr- -_Jn leotteie_s , via.% /to V ACINPUT tive. CT 4-50 MUD 1113 Intl RCA 26 ea C

7、11C10 15-75COO Mum 1214711 CI6 I40-720 Pallmr0. CID 1500Ru want 22424. C TT CID Jura13110.1300. C21 U. 1.3int 1335. 53 75C1200 27 1.4141rD.UNTO 2%P.DV1. I RCA 36 140-2 C24 O 20 l C20 4WD. Ps r 713 4-3 C22 Sum. Increased sensitivity on weak stations can be had by shorting out the 400 ohm section of t

8、he volume control. RCA 82 latent110.20,12. RECT.CDS RESISTOR BOARD COINIECTIONS I C35 .005 Pwit. AMP13. 07 RCA 46 51, -Schematic Circuit Diagram models without noise suppressor C-111 24 1111/0. ,INTERNAL CONNECTIONS OF 1sr LF.TRANSFORMER 40.MA INTERNAL CONNECTIONS OF Eno LE TRANSFORMER .-17-.HUM SUP

9、PLY rountstus -C10-1113C. irot, 111 I.F. MP I. F. TRANSFORMER TRA NSFOR 0 MER e e e SP SP 0 :1: ,r Jr, 2357 0 -Location of I. F. Tuning Capacitors Co Po rnco L -I OLL WOUNDS TOMMIE MI UT WOUND 0111115111111. ILIUM t41 C-7C- 11-414-5410 NIL AMR. IC -542,v 5-2 4040004 11-3 100004 P-2 C- - e .411.01*At

10、- P-I A.0 3.1/ O -I 17004 I-7 t1004 TO Pal ILATTic, AMO01A1uc.3. C -T 4-51 TO 011 5444. FILAMFAIS C 10 11510141115. C-4 t,73 INTERNAL CONNECTIONS OF 113TLF. TRANSFORMER C-40-10 IS -1500 lelfl c-ff FM1 -II 04 POPO. M. 4011 C-4 140 III C-15 13751001t-ff OIWO 11-11 M 000I11 4500. CMFD025. - .015 MFD. 1

11、9g R-26R-29 Ec 0 0 -20000.-15, RESISTOR BOARD - CONNECTIONS ; ; V 77; .4 A. C. INPUT PLUG YELLOW WITH RED TR.- RED & YELLOW - 5 14 242130.n. 2.2. 3INTERNAL 5 CONNECTIONS OF INPUT GREEN I YELLOW TRANSFORMER BLACK 16 4. !32 I.I CC CC LINK OPEN -Assembly Wiring Diagram of RAE -84 YELLOW PAGE 213-A R78

12、& RAE84 REPLACEMENT PARTS Stot.k No. DESCH I PT I ON Stock No. DESCRIPTION RECEIVER ASSEMBLIES SPECIAL PARTS FOR MODELS WITH 2723Switch -Fidelity switch- Package of 5. NOISE SUPPRESSOR 2746Socket -Dial lamp socket 3252Resistor -100.000 ohms -Carbon type -34 watt - 2747Contact cap -Package of 5 Packa

13、ge of 5 3047Resistor -1.500 ohtua-Carbontype -s watt- 3435Resistor -250ohms -Carbontype -j4watt - Package of S Package of S 3055Cushion -Sponge rubber chassis support cushions- One set of 4 3437 3439 Knob -Noire suppressor rheostat knob Resistor -600,060 ohms -Carbon type- 1 watt - Package of 5 3076

14、Resistor -1megohm-Carbontype-Yiwatt- 3440Resititr-4.500ohms -Carbon type -jwatt - Package of 5 Package of 5 6142Resistor -6.000 ohms -Carbontype -34 watt- 3441Resistor -850ohms -Carbontype -swatt - Package of 5 Package of 5 6189Bracket -Dial lamp bracket and indicator -Pack- age of 2 6142 6188 Resis

15、tor -6.000 ohms -Carbon type-$watt- Package of 5. Resistor -2 megohm-Carbontv pe-34 watt - 6192Spring -3 gang tuning capacitor drive cord tension Package of S spring -Package of 106351 Resistor -Voltage divider resistor 6251Capacitor -1200 mmfd.-Package of S 6352Transformer -Third intermediate trans

16、former 6275Volume control -Complete with mounting nut 6353 6354 Transformer -Second intermedite transformer Rheostat -Noise suppressor rheostat 6276Tone control -Complete with mounting nut and 63.55Volume control -Complete with mounting nut washer 6356Capacitor -0.1 mfd. capacitor -Located on resist

17、or 6277Capacitor -0.1 mfd. capacitor -Located on resistor board board 7504Coil -Detector and oscillatorcoil complete with 6279Resistor -15.000 ohms -Carbon type -34 watt- mounting bracket Package of 5 7505 7506 Shield -Tube shield top -1 used -Maroon Shield-Radiotron tube shield -7 used -Maroon 6280

18、Resistor -400.000 ohms -Carbon type -34 watt- 6281 Package of 5 Resistor -1,100 ohms -Carbon type -34 watt- AMPLIFIER ASSEMBLIES Package of 52725Fuse -1.5 ampere -Cartridge type fuse -Package 6282Resistor -60.000 ohms -Carbon type -34 watt- of 5 Package of 5 2731Resistor -10,000 ohms -1 watt -Carbon

19、 type resistor - 6283Resistor -Voltage divider resistor 2757 Package of 5 St rip-Termsl strip -2 terminals 6284Reactor -Tone control reactor 3032Socket-UX type Radiotron socket with insulator. 6285Choke coil -2nd detector plate choke coil 30i6 309 Shield-Radiotron tube shield -Package of 2 Capacitor

20、 -.005 mfd. capacitor 6286Capacitor -0.1 mfd. capacitor 3147Cover -Fuse cover with bushing and insulator 6288 Knob -Station selector -Tone control or volume6289 Strip -Terminal strip -5 terminals control knob -Package of 56290Board -Terminal board complete with terminals, 6298Cord -3 gang tuning cap

21、acitor drive cord -Pack fuse clips, and insulator age of S 6291 Board -Terminal board complete with terminals and 6308 Coil-R.F. coil complete with mounting bracket 6292 insulator -Less capacitor Switch -Operating switch 6312Capacitor -650 mmfd.-Oscillator aeries -Package 7054 Cord -Power cord of 5

22、7370Cover -Terminalstriprover withinsulator -5 6313Resistor -220 ohms -Carbon type -34 watt -Pack- terminals age of 5 7491 Socket-UY type Radiotron socket with insulator. 6314 6315 Capacitor -160 mmfd.-Package of 5 Reaistor-45,000 ohms -Carbon type -s watt- Package of 5 8910 8911 8912 Capacitor pack

23、 -Comprising two 10 mfd. capacitors in metal container Reactor -Filter reactor Transformer- Audio transformer pack comprising 6316 Resistor -2.500 ohms -Carbon type -X watt - input and output transformers in metal container. Package of 5 8013Transformer -Power transformer -105-125volts, 6323 Shaft -

24、Tuning condenser drive shaft with one flat 50-60 cycles washer and two -C washers -Package of 2 8914Transformer -Power transformer -105-125volts, 7062 Capacitor -Adjustable trimming capacitor -15 to25-50 cycles 70 mmfd 8915Transformer -Power transformer -200-250volts, 7065 Screwdriver -Non-metallic

25、screwdriver for oscillator 50-60 cycles and I.F. adjustments 10907 Fuse -3 ampere fuse (for 25 cycle use) -Package of S. 7298 Capacitor -0.01 mfd. capacitor -Located on resistor board7578Capacitor - 0.05 mfd - Buffer capacitor. 7438Capacitor -3 gang variable tuning capacitor com- plete with mounting

26、 screws and washers 7439Drum -Dial drum with set screws and 3 dial mount- ing nuts. 7440Scale -Dial and dial scaleAUTOMATIC RECORD CHANGING 7477Capacitor pack -Comprising two 1. mfd. and fiveMECHANISM ASSEMBLIES 0.1 mfd. capacitors in metal container.2893 Spring -Eccentric and spiral trip lever tens

27、ion spring 7478Capacitor pack -Comprising four 0.5 mfd. one .02 mfd., and one 0.1 mfd. capacitors in metal contain - er 2894 -Package of 10 Pulley -Cable pulley complete with mounting stud 7479Transformer-Intge audio transformer in metal -Mounted horizontally -Package of 5 container 2896Spring -Cabl

28、e lever adjustment spring -One end 7480Transformer -1stintermediatefrequencytrans- fastened to adjustment stud -Package of 10 former 2898Screw and nut -Elevator shaft adjustment -Pack - 7481Coil -Detector and oscillator coil complete with age of 10 mounting bracket2904Lever -Front elevator actuating

29、 lever 7483Reactor -Volume control compensating reactor .2905Screw -Gear and bracket mounting screw -Pack. 7484Socket-UY type Radiotron socket -5 used age of 10 7485Socket-Radiotron 6 contact socket -4 used-2906 Spring -Check lever spring -Package of 10 7486Board -Phonograph terminal board -8 termin

30、als 2907 Screw -Gear and ratchet set screw -Package of 10 sod 3 links 2909 Spring -Four finger lever epringfl long -Pack - 7487Shield-Radiotron tube shield -7 used -Plain finish, 2910 age of 10 Spring -Four finger extension lever tension spring - 7488Shield -Tube shield top -1 used -Plain finish 14r

31、 long -Package of 10 7490Board -Resistor board -Less resistors and capacitors. 2911 Screw -Slide bracket mounting screw -Package of 10 7492 Transformer -3rd intermediate transformer,2912Roller -Slide roller complete with screw and stud - 7498Reactor -Coupling reactor Package of 5 7499Transformer -2n

32、d intermediate transformer 2913Spring -Cable lever tension spring -Package of 10. 7500Cable -7-6 conductor -From receiver to S.P.0 2914Spring -Flat spring and screw for locating lever - Package of 10 PAGE 214-A R78 & RAE 84 REPLACEMENT PARTS-(Continued) Insist on genuine Factory tested parts, which

33、are readily dentified and may be purchased from authorizeddealers Stock No. DESCRIPTION ListIStock No. D E SC 11 1PTION List 2916Plate-Four finger lever and motor switch latch 3419 Screw-Pickup cover mounting screw-Package of 10 plate with mounting screws-Package of 5. 6335 Pickup-Pickup unit comple

34、te 2917Washer-Spring C washer for locating cable, four 6336 Weight-Home recording weight finger levers and manual index levers-Package 6346 Back-Pickup housing back of 10 7532 Meter-Home recording volume indicator meter 2918 Spring-Locating and extension lever tension spring 7533 7534 Mechanism-Micr

35、ophone mechanism-Lena housing Cord-Microphone cord -Package of 10 7538 Arm-Pickup arm complete less escutcheon, pickup, 2919Screw and nut -Locating lever atop screw with nut pickup mounting screw and washer -Package of 10 MOTOR ASSEMBLIES 2920Washer-Friction washer forslideandelevator actuating leve

36、r-Package of 10 3398Motor mounting washer assembly-Comprising 2 cup washers, 4 apringe and 1 C washer-One set 2929 Lever-Rear elevator actuating lever-Package of 2. 6389 Capacitor -2.0 mfd. for motor No. 56933-G1 3200 Shaft-Front or rear elevator shaft6410 Capacitor -2.5 mfd.-For motor No. 56933-G2

37、. 3214 Pulley-Cable pulley with mounting stud-Mounted vertically-Package of 5 7330 Capacitor-Motor capacitor -3.75 mfd.-For 25 cycle operation 3217 Lever-Check lever. 8644 Capacitor-Motorcapacitor -1.25 mfd.-For 60 3322 Switch-Motor switch complete cycle motor 57085-2 3401Spring-Automatic trip lever

38、 tension spring-Pack 8952 Motor-Motor complete -105-125 volts -60 cycles. age of 10 8953 Motor-Motor complete -105-125 volts -2.5cycles. 3402 Screw-Elevator pad screw-Package of 10 8954 Motor-Motor complete -105-125 volts -50 cycles. 3403Spring-Clutch pawl spring-Package of 10 8955 Rotor and shaft f

39、or 60 cycle motor No. 57085-G 2. 3404Spring-Brake levertensionspring-Locatedon8956 Rotor and shaft for SO cycle motor No. 56212.G 2. motor starting switch plate-Package of 10. 8957Rotor and shaft for 25 cycle motor 3508 Stud assembly-Four finger lever mounting stud washer and nut assembly 8958 Spind

40、le-Turntable spindle with fibre gear for 60 cycle motor No. 57087-G 2 6340Lever-Automatic trip lever 8959 Spindle-Turntable spindle with fibre gear for 50 6341 Lever-Manual index lever cycle motor.No. 562I2 -G 2 6342Pawl-Clutch pawl complete8960 Spindle-Turntable spindle with fibre gear for 25 6343G

41、ear-Gear and ratchet with set screw cycle motor 6344Lever-Eccentric end spiral trip lever complete- 8971 Rotor and shaft for 60 cycle motor No. 56933-G1 For manual position8972 Spindle-Turntable spindle with fibre gear for motor 7186Gear-Gear and bracket No. 56933 -GI 7188 Bracket-Slide bracket with

42、 roller 8973 Spindle-Turntable spindle with fibre gear for motor 7189Lever-Front and rear elevator cam lever-Package No. 56933-C2 of 58974 Rotor and shaft for 50 cycle motor No. 56933-G2 . 7190Lever-Locating leverMISCELLANEOUS PARTS 7191 7192 7321 7363 Lever-Cable lever Cam-Cam gear and cam Lever-To

43、ne arm cable guide lever with pulley Pad-Front elevator rubber pad-Package of 10 2737 2857 Escutcheon-Operating switch escutcheon-Pack- age of 5 Plug-Three prong (male section) connector plug 8646Slide for power cable 8647Lever-Four finger lever MOTOR BOARD ASSEMBLIES 3173 3413 Plug-Three prong (fem

44、ale section) connector plug for power cable Resistor -5.000 ohms-Carbon type-s watt - 2779Pointer-Selector switch pointer-Package of 10. Package of 5 3262Screw and nut-Record transfer lever adjusting 3414 Resistor -15 ohms-Porcelain type -20 watt screw and nut-Package of 10 3415Receptacle-Needle rec

45、eptacle 3394Socket and base assembly-For compartment lamp. 3416Box-Needle box with lid 3395Shade-Compartment lamp shade 3433Capacitor -0.015mfd. 3405 Spring-Record transfer lever spring-Package of 10 3442Resistor -100 ohms-Carbon type -35watt - 3106Escutcheon-Engraved AUTOMATIC Located on selector s

46、witch -Package of 5 3107Escutcheon-Engraved MANUA I, 6292 Switch-Operating switch-Toggle type located on 3108Escutcheon-Engraved 33-781,c side of cabinet 3109Post-Roller post assembly for supporting record magazine 6303Resistor -20.000 ohms-Carbon type-,14 watt- Pack age of 5 . 3410Suspension spring

47、 and washer for motor hoard - 6348 Cable-Power three conductor power cable Comprising 1 bolt, 1 top spring, 1 bottom spring, 2 cup washers, 1 C washer and 1 nut 6349 Cable-Shielded two conductor cable-From eelec- tor switch and resistor hoard to indicator meter 3431Escutcheon-Selector switch escutch

48、eon and pickup terminal board 6288Knob-Selector control switch knob-Package of 5. 7312 Transformer-Phonograph input transformer 6345Lever-Record transfer lever assembly complete . 7362 Capecitnr-0.025mfd. 7535 3261 Switch-Selector control switch complete, leas knob and escutcheon., TURNTABLE ASSEMBL

49、IES Bushing-Rubber bushing for turntable spindle- 7536 Cable-Braid covered interconnecting cable from receiver terminal strip to phonograph input trans - former, S. P. U. terminal strip, selector switch and resistor board assembly Long-playing records-Package of 5 3338 3340 Ring-Clamp ringassembly-Comprisingspring. latch lever and stud Washer-Thrust washer-Package of 2 CABINET ASSEMBLIES 3341Pin-Crony-Pin-Package of 2- Prices Furnished Upon Request 3411 3570 Sleeve-Sleeve assembly complete with ball race Cap-Spindle nose cap and spring 2