RCA-Victor-Co-Inc-RADIOLA-44 电路原理图.pdf

《RCA-Victor-Co-Inc-RADIOLA-44 电路原理图.pdf》由会员分享，可在线阅读，更多相关《RCA-Victor-Co-Inc-RADIOLA-44 电路原理图.pdf（7页珍藏版）》请在收音机爱好者资料库上搜索。

1、PAGE 464-A RADIOLA44 O O O II UY- 24 F GROUND LEAD AND ALL OTHER GROUND -CONNECTIONS ARE CONNECTED TO FRAME PILOT LAMP GANG CONDENSEFLS.44 4 1 MFD lr =I N=11 c:aO PC111. L/7- UY-224 2L R.F. UY-224 DET. A-.00005 MFD 0000ID .0000MFD5 R,E Of g II 3 -.25MFD. 0000 COUPLING REACTOR _71SMFD. 6 4 3 2 Schema

2、tic circuit diagram 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 PAGE i65-A Provision is made in Radiola 44 for supplying the field current toa dynamic loud- speaker the field of which has a rating of 300 volts, 40 milliamperes. Close the link b

3、etween terminals 7 and 8, Connect the loudspeaker field leads to terminals 7 or 8 (connected by link) and terminal No. 10. -GREEN TO VOLUME e? -CONTROL LOUD SPEAKER FIELD t ti N OUTPUT OF RECEIVER t;= -GREEN TO VOLUME Ae-CONTROL LINK CLOSED WHEN -11 LOUD SPEAKER 7 FIELD IS ENERGIZED 0 0 0 .006 MFD.

4、1.25 MFD 0 c 0 1100.n. 3600.n.900.rt2800.n. .25 MEG. (CARBON) MFD FILTER . REACTORS., OUTPUT CHOKE 2MED.2 MFD.2 MFD. 5 4 4 8 to 10.oi Red V.C. lead to 10cr 11 Arm of V.C. to red V.C. lead 2.6 A.C.2.5 A.C. 185 D.C.170 D.C. 70 D.C.60 D.0 195 D.C.180 D.C. 5.0 D.C.6 D.C. 330 D.C.* 330 D.C. 2.1 D.C. 2.1

5、D.C. 070 D.C. Heater voltage of Radiotrons UY-224 Plate voltage of Radiotrons Nos. 1 and 2 Screen grid voltage ofRadiotron No. 3 Plate voltage of Radiotron No. 3 Control grid voltage of Radiotron No. 3 Total D.C. output from rectifier Control grid voltage of Radiotrons Nos. 1 and 2 Screen grid volta

6、ge of Radiotrons Nes. 1 and 2 * This voltage is 320 when link is closed and dynamic type loudspeaker is used. 收音机爱 好者资料库 RadioFans.CN PAGE 1 6 7-A OPERATING SWITCH FILTER. REACTORS 110 VOLT TAP FILTER AND BY-PASS CONDENSERS, AND OUTPUT CONDENSER AND CHOKE POWER TRANSFORMER 11109 87654321 gCREHEWVERE

7、FE SOCKET POWER UNIT BLACK WITH YELLOW TRACER -Radiola 46 Radiotron sockets, socket power unit terminals and main assemblies 44 & 46 LOCAL -DISTANT - SWITCH REPRODUCER UNIT TO CONE COIL RECEIVER ASSEMBLY REPLACEMENT PARTS BLACK BLUE GREEN - BLACK TO ANTENNA TO GROUND Insist on genuine Factory tested

8、 parts, which are readily identified and may be purchased From authorized dealers Stock No. DESCRIPTION Stock No. DESCRIPTION RECEIVER ASSEMBLIES 2532 Antenna Condenser - 230 mmfd. - Package of 5. 2533Board - Micarta board for mountingantenna 2032Antenna and ground leads -1 pair. condenser. 2034Swit

9、ch - Local -distant switch - 2 -position - 2534 Condenser - Adjustable line-up condenser. Toggle type. 2535 Knob - Volume control knob - Package of 5. 2523Loading coil- Antenna loading coil -Less Micarta mounting strip - Package of 5 - 2536 Knob - Station selector knob - Package of 5. 2524Board - An

10、tenna loading coil mounting board with 2 terminals. 2537 Socket - Single Uy Radiotron socket-Less leads - Package of 5. 2525 Drive cord - Condenser drive cord-Package of 5. 2538 Cap- Contact cap with flexible lead-For Radiotron DT -224 - Package of 5. 252eTension spring- Spiral tension spring for co

11、ndenser drive cord - Package of 5. 2539 Clip - Spring contact clipfor maintaining contact between tuning condenser shaft and stage metal shields - Package of 5. 2527 Scale - Tuningcondenserperforatedmetal scale - Package of 5. 2540 Shield - Metal shieldfor1stor2nd R.F. Radiotrons. 2529 Screen - Ambe

12、r colored tuning scale screen - Package of 5. 2541 Coupling strip-Micarta strip -Couples volume controlandvolumecontrol drive 2531 Socket-Pilot lamp socket-Less flexible shaft together - Package of 5. - leads - Package of 5. PAGE 68-A 44846 REPLACEMENT PARTS (Continued) STOCK No. DESCRIPTION STOCK N

13、o. DESCRIPTION 5999Cable-Laced wiring cable- From receiver to S.P.U. S.P.U. ASSEMBLIES 6000Filter Coll and Condensers- Comprising MI- carte strIpwith3 terminals, 2 condensers, 1 coil and mounting bracket - Mounted on upper side of chassis. 2340 2543 Resistor - Detector -cathode resistor -5000 ohms -

14、 Carbon type. Resistor - 8,400 -ohm voltage divider with 5 terminals - Porcelain type. 6001Filter Coil Assembly - Comprising 1coil, Micarta mounting stripwith5terminals and wooden spacer - Less mounting screw - 2545Resistor - Detector -plate resistor - 15,000 ohms - Carbon type - Package of 5. Mount

15、ed on lower side of chassis. 2546Resistor - Power tube grid resistor - 1 meg- 6002Condenser Assembly - One.25 mfd.and one ohm - Carbon type - Package of 5. 6003 .75 mfd. condenser in metal container. Condenser Assembly -Three.1 mfd. conden- 2547Resistor - Detector cathode resistor - 2,000 ohms - Car

16、bon type - Package of 5. sers in metal container. 2548Resistor- Bleeder resistor- 3,350 ohms - 6004Coupling Reactor in metal container. Carbon type - Package of 5. 6005Volume Control-2,900 ohms-Porcelain base,with short slotted shaft-Package 2549Resistor -Coupling reactor tuning resistor - Carbon ty

17、pe - 1/4 megohm - Package of 5. of 5. 2552Socket - 2 -gang UX type Radlotron socket with 600eShield - Metal shieldfor 2nd R.F. stage- Micarta shield. Contact clips for condenser shaft on both sides. 2553Resistor - 2,080 -ohm voltage divider with 5 terminals - Porcelain type. 6007Shield- Metal shield

18、 for detector stage - Contact clipforcondenser shaft on one 2558Switch - Power line operating switch -Toggle type. side. 5819Terminal Strip - 11 terminals with screws and 6008Drive Shaft- Volume control drive shaft -mounting brackets for metal shield. Comprising shaft with gear and U washer. 5906Ins

19、ulating shield - Dilecto shieldforinsu- 6009Drive Shaft - Tuning condenser drive shaft -lating terminal strip from metal shield- Comprising shaft,2 pins,stops, spacingPackage of 5. washers, collar and threaded drum. 6014Resistor and Condenser Assembly -Comprising 6010 Shield Clamp - Comprising1 clam

20、p,2 studs and 2thumb nuts for clamping second R.F. and detector shields - 1 set. two 50 -ohm mid -tapped resistors,one.006 mfd condenser and one .01 mfd condenser with mounting brackets - Package of 5. 8469R.F. Transformer-1st R.F. transformer and6017 Cable - Laced cable for wiring S.P.U. antenna lo

21、ading coilwithmounting bracket. 6020Shield - Metal shield for S.P.U. terminal 8470R.F. Transformer-2nd or 3rd R.F.trans- strip. formerincludinglowfrequency primary, complete with mounting bracket. 6082 Condenser - Filter and by-pass condenserin metal container for 25 -cycle model-Com- 8471 Tuning Co

22、ndenser Assembly - Comprising cast- ing,3 variable condensers,3 adjustable prising one 2 mfd and one 1 mfd condenser - Complete with 12 leads. line-up condensers and drive drum complete 8472Transformer - Power transformer -105-125 volts -less volume control shaft,drive cord, drive shaft and pilot la

23、mp socket. - 50-60 cycles - In metal container. 8473Transformer -Power transformer-105-125 v 25-40 cycles - In metal container. REPRODUCER ASSEMBLIES 8474Transformer - 220 volt-co cycle-Power transformer - In metal container. 2365Bracket - Metal bracket for supporting output transformer. 8475Reactor

24、s - Filter reactors - Inmetalcon - tainer. 2366Screw - Magnet clamping screw - Used to clamp front and back end plates together and also used to fasten complete magnet to cone sup- port - No. 1/4 - 20 - 4 - Set of 4. 8476Condenser. and Choke Assembly - Comprisingf11- ter condensers, by-pass condense

25、rs,output coupling condenser and choke -In metal con - tainer. 2557Cords- Two cords from S.P.U. to reproducer coin coil - Each cord 41 inches long. CABINET ASSEMBLIES 5897Washer - Paper washer used between magnet and cone support - Package of 5. 2522Escutcheons - Comprising 1 antenna escutcheon 6018

26、Field Coil - 330 -volt. marked Distant -Local, and 1 power escutch- 6019Transformer -Outputtransformerin metal container. eon marked Off-Onn - With mounting screws - Set of 2. 2528Screen support - Metalsupportfortuning 8374Support - Cone support -Metal flange. scale screen. 8375Cone -8 Corrugated pa

27、per cone with voice coil for dynamic speaker. 2551Shield - Metal shield for antenna switch. 8376Ring - Metal clamping ring for holding cone. 3015Grille cloth. 9016Escutcheon - Station selector escutcheon with 8390 Ring - Cardboard seal ring- Used between baffle board and cone support - Package of mounting screws. 10.