RCA-Victor-Co-Inc-RE-57 电路原理图.pdf

《RCA-Victor-Co-Inc-RE-57 电路原理图.pdf》由会员分享，可在线阅读，更多相关《RCA-Victor-Co-Inc-RE-57 电路原理图.pdf（10页珍藏版）》请在收音机爱好者资料库上搜索。

1、MANUAL OF MOST-OFTEN-NEEDED RADIO DIAGRAMS VICTOR MICRO-SYNCHRONOUS RADIO R-35, R-39, RE-57 mm fcg SJ * 2l is j d-j: s lit |as - min mi OOOOOO 0900 1 Suu iwwwwwww l! iilliiiii M|8* I. ESo -*#?*: t#r* hh* I f-IMc I r*A umw 170 sSsmSSSSSiMsSs $ S 5 * 2 * J SSKS i !H I II ililll us*mi*Ss!ms*s|Ss *,El#6

2、0t(2oSK*,iOK66?S 3aS5SE5S23SSS2SS5ggg ! 5 fflPilWi gOOOOOOnOiJ SSgSSSSgSSs* jjjio:3 a a a a a a a aaaaa aaa a % c Ul 111 Z* S3| 333“.1 a stilt j smii-s th500303ONMSBLUEWITH ,ZEENEND) 12-9500000Orv+45 t3,1.:Ek ri,rn GREENENO) 17.-$0 !2800OHMS 1elcit (WITH WHITE END) Resistor Board on Radio Chassis O6

3、c1.2 0 I MFD C-25 n -Internal Connections of filter Condenser Bank. 2 MOD C-21 2 MFD C-28 2 MFD C-3/ POWER TRANSFORMER IOR /(3 (PRIMARY START GILACC-RED YE. VOLTS PA/MAAY TAPBLACK -LLD ./e4 (MARYFINLSAIBLACK VS -280 MATE START SLACKOLLIC re TM 00475 00240 PLATE MIDTAP YELLOW -RED TR. 1.1S ZOO PLATE

4、FINIAL, 5LACE.ALLIE VOLTS fLot. TEO FILAMENT STARTARCAIN-CLAELN TT. ILIS MC FILAMENT IoNe3,1 IROAMEARZEN TR ILIY-114 O LA,Z7 FILAMENT START DROWN 1/1-224 I W EST FILAMENT FINISH MOM, IIVOLTS ILLS243 FILAMENT START ISPOWNYELLOW TA LUR 243 FILAMENT MAS3Al SAGNAIYELLOWTE -Internal Connections of Power

5、Transformer The new Victor Micro -Synchronous Radio is a screen grid five circuit tuned radio frequency receiver of the antenna type.It employs three stages of tuned radio frequency amplification and a power detector, all of which are screen grid Radiotrons UY-224. A UY-227 Radiotron is used as a fi

6、rst stage audio amplifier, resistance coupled; two UX-245s are used in the push-pull power amplifier stage, and a UX-280 as rectifier. Through the use of the screen grid Radiotrons, which produce an extremely high degree of amplifi- cation, and the five circuits, tuned with the micro - synchronous p

7、rinciple, extremely high sensitivity and selectivity are obtained without sacrifice of tone quality. Both the radio and the combination instruments contain two standard interchangeable units.The radio chassis contains the r. f. amplifiers, the power detector, and the first audio amplifier. The ampli

8、- fier:speaker unit contains the push-pull stage of audio amplification, the rectifier -power supply, and the new Victor e!ectro-dynamic speaker. The Victor Micro -Synchronous Radio is designed for operation on 105 to 125 volts, 50 to 60 cycles, alter- nating current.Special instruments are also ava

9、il- able for 25 to 30 cycle operation. Power Consumption: Radio only120 watts Radio 421: -Schematic Connections Between Detector and First Audio Tubes with Transfer Switch in Home Recording position. De rrc rag, U7 224 L _ _ _ J A.47 5CA2-CAI 412/05 OCACC, V COOP JOICar V To ?ON.-1,t/r/CR 7-CRA,WAL

10、5 TR, oorror 2. ACID/0 4,0- 227 Srirem ArrallarZal Tb 44-727l5TAir ne.,./4,04,46Ar -Schematic Connections Between Detector and First Audio Tubes with Transfer Switch in Radio Recording position. PAGE54-A R34, R35, R39, RE57 - Package of 2. 2781Felt -Regulating lever friction felt - Pack- age of 20.

11、REPRODUCER ASSEMBLIES 2782 Weight - Recording weight. R 33, R 39 & RE S7 2783 Escutcheonof -Control switch escutcheon -Pack- age5. 7055Bolt assembly - Used to mount cone support - Package of 4. 2784Tray -Needle tray plate and spring with mount- ing screws - Package of 2. 7056 Ring - Felt spacing rin

12、g for speaker field coil - Package of 2. 2785Hinge - Lid hinge - Package of 2. 8554 Transformer - Audio transformer. 2787 Switch - Pickup shorting switch. 8557 Support - Speaker cone support and housing. 2804 Knob -Volume control and switch control knob 8558Cone- Speaker cone and voice coil -Package

13、 - Package of 5. of 5. 2825 Connector block - Pickup connector block and 8559Ring - Cone retaining ring. wire. 8560 Coil - Loudspeaker field coil. 9302 Speaker - Loudspeaker complete. 2827Resistor - Motor resistor - 38 ohms - for 25 cycles. REPRODUCER ASSEMBLIES 2828Screw assembly -Pickup mounting s

14、crew, lock - washer and nut - Package of10sets. RE 73 2872 Ball and spring assembly - Comprising gover- nor ball and spring with mounting screws and 3166Bolt assembly-Reproducer mounting bolt assembly washers - Package of 5. -Comprising two bolts, twonuts.two lock washers and two plates 2873Screw as

15、sembly - Top plate screw, lockwasher, 7308Coil assembly-Reproducer fieldcoil assemlly-. nut and ball bearing - Package of 5 sets. Comprising field coil, cone bracket and magnet Ring-Cone 3052 Screw assembly - Pickup pole piece mounting 8559 screw and nut - Package of 10 sets. retaining ring 8601Cone

16、 -Reproducer cone with voice coil-Package of 5 7076 Brake - Eccentric automatic brake - Complete 10845Transformer-A. F. transformerwith mounting screws. SPECIAL PARTS FOR RE -57 7077 Regulator - Speed regulator escutcheon with screw and mounting screws - Package of 2. 2814 Switch - Brake motor switc

17、h.7078Volume control -Electrola control - complete 2620 Cushion- Pickup rubber cushions - Set of 1 less knob. damper and2 pivot cushions - Package of7079Capacitor - Motor capacitor (60 cycles). 1 set. 7082Support - Lid support (complete). 2758 Cup - Needle cup - Package of 2. 7083Transformer - Picku

18、p input transformer. 2759 Box - Needle box with lid - Package of 2. 7084 Cover - Turntable cover. 2761 Jack - Microphone pin jack. 7085Pickup - Pickup unit. 2782 Bearing assembly - Governor bearing assembly - Comprising 2 bearings, 2 set screws, 2 7088Level - Regulating lever - Package of 2. ball be

19、arings - Package of 3 sets.7087 Gear - Governor drive gear. 2763 Bolt assembly - Motor mounting bolt assembly7088 Disc - Rotor disc with set screw. - Comprising bolts, C washer, rubber washer and cushion, flat washers and nut -Package of 3 sets. 7090Coil- Motor inductor coil - 120 volts - 60 cycles.

20、 2764 Spindle - Turntable spindle. 7093Cover - Pickup unit cover. 2785 Screw - Pickup needle screw - Package Of 10. 7095 Hinge - Door hinge - Set of 4 - Package of1set. 2788Screw - Pickup cover screw - Package of 10. 7096 Handle - Door pull handle - Package of 2. 2767 Spring -Pickup magnet spring -P

21、ackage of 10. t PAGE 157-A REPLACEMENT PARTS-Continued R34, R35, R39, RE57 & RE 73 STO No.CK DESCRIPTION STOCK No. DESCRIPTION 7097 Microphone complete with cord.2789Cord-Motor cord-Connects motor coil and - jug switch 7098 Cord - Microphone cord. 2826 Cable-Shielded cable from shorting switch to re

22、cord 7147Coil - Motor inductor coil - 120 volts - 25 volume control cycles*. 2829Knob-Motor board lifting knob and screw-Pack- age of 2 7148 Capacitor - Motor capacitor - 25 cycles.2858Rest-Pickup rubber rest with mounting brad- Package of 5 7151 Back - Pickup back housing. 3052 Screw assembly-Picku

23、p pole piece mounting screw, 8582 Turntable - Turntable with cover. nut, washer-Package of 10 sets 3101 Switch-Record-radio toggle switch with mounting 10174 Springs - Brake springs - Set of 4 springs - Package of 2 sets. 3102 nuts and escutcheon plate-Located on top of motor board Receptacle-Needle

24、 receptacle 10196 Spring - Speed regulator lever spring - Pack- age of 10. 3158Screw assembly7-Motor mounting screw assembly- Comprising 3 screws, 3 bushings, 3 metal washers and 12 cushion washers 10289 Governor - Complete - Comprisingspindle, collar, friction disc, springs and balls - 3162Regulato

25、r-Speed regulator with mounting screws- Comprising cam and shaft, bushing and bracket Assembled. 3163 Escutcheon-Speedregulatorescutcheonwith mounting screw-Package of 5 10378 Top plate.3164 Control-Record volume controlwith mounting washer and nut-Less knob 7092 Arm -Pickup arm and base withmountin

26、g screws. 3167Magnet-Pickup magnet 10901 Spring - Lid support spring - Package of 2. 3168 3169 Coil-Pickup coil Shoe-Pickup pole shoe R. II. 10938 Reactor - or Compensating unit. 3170Shoe-Pickup pole shoe L. II 10939 Switch - Control switch - 13 contact - Com- plete less knob (25 cycles). 6067Lever-

27、Speed control regulator lever for motor- Comprising lever, spring, mounting bolt, nut and washer 6069Coil assembly-Located nearest governor -105-125 10940 Switch - Control Switch - 13 contact - Com- plete less knob (60 cycles). volts, 60 cycles-Comprising 2 current coils,1 voltage coil, laminated co

28、re end bracket, terminal hoard, nuts,bolts,screws and washers-Com- 10967 Panel - Control panel. pletely assembled ready for mounting 6070Coil assembly-Located farthest from governor- RE 73 PHONOGRAPH PARTS 105-125 volts, 60 cycles-Comprising 2 current coils,1 voltage coil, laminated core, end bracke

29、t, terminal board, nut, bolts, screws and washers- Completely assembled ready for mounting 2614Switch-Automatic brake contact switch 7076Brake-Automatic brake with mounting screws 2615Springs-Brake springs-Set of 4 springs-Package of 2 sets 7082Support-Lidsupportcompletewithmounting screws 2620 Cush

30、ions-Pickup rubber cushion-Comprising1 damper and 2 pivot cushions-7Package of 5 sets. 7083Transformer-Input transformer Cover-Turntable 2622 Coil assembly -Located nearest governor -105-125 7084cover volts, 25 cycles-Comprising 2 current coils,1 7093Cover-Pickup cover voltage coil, laminated core,

31、end bracket, terminal7151Housing-Pickup housing back board, nuts, bolts, screws and washers-Com- pletely assembled ready for mounting 7304 7306 Spindle-Turntable spindle Cable-Braided cable from volume control switch. 2623Coil assembly-Located farthest from governor - 105 -125 volts, 25 cycles-Compr

32、ising 2 current 7307Pickup-Pickup unit complete coils, 1 voltage coil, laminated core and bracket, terminal board nuts, bolts, screws and washers -7 8732Arm-Pickup arm and base Complete with mounting screws-Less pickup unit Completely assembled ready for mounting 8733Turntable-Turntable with cover 2

33、691Governor-Comprising shaft with worm, brake disc. weights, springs and screws-Assembled 10175Needle holder 2692Bearings-Governor shaft bearings-One set of 2. 2693Gear-Governor drive worm gear with set screw . . R E 73 2695Bearings-Threaded thrust bearing with lock nut for end of turntable spindle

34、CABINET ASSEMBLY 2759Box-Needle box with lid-Package of 2 2765Screw-Pickup needle holding screw-Package of 10 2785Hinge-Lid hinge with mounting screws-Package of 1 set of 2 2766$crew-Pickup cover mounting screw-Package of 10 3156Label-Metal trade mark label-Package of 5 2767Spring-Pickup magnet spring-Package of 10 7300Baffle board and grille cloth . 2768Armature-Pickup armature 7301Escutcheon-Tuning dial control escutcheon 2770Plate-Pickup damper plate-Package of 5 2771Screw-Pickup damperplatemounting screw- Package of 10 2787Switch-Pickup shorting switch