RCA-Victor-Co-Inc-RADIOLA-33 电路原理图.pdf

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1、PAGE i 43-A RADIOLA33 (105-125 Vojta, 50-60 Cycle A. C.) INTRODUCTION RCA Radiola 33 is a socket powered six -tube, tuned radio frequency receiver utilizing RCA Radiotrons UX-226, UY-227, UX-171A and the full wave rectifier Radiotron UX-280 in the Socket Power Unit.It operates on 105-125 volts, 50 t

2、o 60 cycle A.C. lines.Radiola 33 is also supplied in models designed for 105-125 volts, 25-40 cycle A.C. lines. Internal connections of output con- denser and choke and tiller condensers RCA Radiola 33 VOLTAGE READINGS Tube No. Filament to Grid 1 Filament or Cathode to Plate Volts Ilate Current Mill

3、iamperes Filament loltage 191304.5 1.5 291304.5 1.5 391304.5 1.5 4-302.02.5 591304.51.5 63013517.05.0 ADJUSTMENT OF R. F. COMPENSATING CONDENSER ( a )Put receiver in operation in usual manner and tune in a station preferably at the middle or upper wave lengths. (b) Locate the position of the compens

4、ating condenser adjusting screw at the rear of the receiver assembly.(See Figure1 (c) With the volume control at the position of maximum intensity, turn the screw to the right until the set goes into oscillation.Then turn the screw to the left until all oscillation and howl is eliminated with the vo

5、lume control at maximum.In some cases interchanging the tubes in the R.F. stages will facilitate this adjustment. (d) Tune in stations with maximum volume and note if the receiver goes into oscilla- tion at any wavelength.If itdoes, turn the screw still further to the left. (e) When the adjusting sc

6、rew has been turned to the right as far as possible without oscillation occurring at any wavelength, the correct adjustment has been found for hest sensitivity. 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 ,vOLUoAE CONTROLTHREE -GANG TUNING COND

7、ENSERA COUPLING UX-224 I., TUNED R.F. U0 226 f R. F. COMPENSATING CONDENSER. ci UFO .=. T 2T TUNED R F ux-226 DETECTOR00I2 1.IFD.10? A.F. 1.10-227UX- 226 ETEC TOR RIMMING CONDENSER C2 4 30.000 T. a , .00016 OAF .6 oxF0 5 PwR h F UX 0 0 PILOT LAMP OUTPUT 5 MED. 1=1=D 6 OUTPUT CHOKE 1600 so. 4.FILTER

8、REACTORS. 91111M1.0 I MEDMID. POWER TRANSFORMER 80 a $000 A SWAMI CC C C) C 440.R. -Schematic circuit divgram of receiver and socket power unit-all grounds are connected to frame and metal cabinet (ce) DE T. -ALAdR.F. -sot 0 I (el) 0 0 OR -280 POWER TRANSFORMER OUTPUT CONDENSER AND CHOKE AND FILTER

9、CONDENSERS FILTER. REACTORS -Diagram showing location of Radiotron socket contacts III) VOLT LEO OPERATING SWITCH C INPUT PLUG C -670 P.3 :.TO lot 收音机爱 好者资料库 RadioFans.CN PAGE 145-A RADIOLA 3 3(D.C) 220 V. ELECTRICAL SPECIFICATIONS Direct Current Line Voltage- -200-240 volts Maximum Power Consumptio

10、n_ _72 watts RE (CO UX17111V%112 -AU% -$2A 11X -112-AUXIti-A U% -112A 111111 1111 OUTPUT TotAnsfORmell jtjusu fissmi 1 LINK vOLTAGt REGULATING SWITCa COVER 111040,10 0,0. 0 TIANIIIAES 4) INPUT TAANSPORAIE OUTPUT 11114,011111 AND FILTER CONDENSERS HOER REACTORS -Radiotron socket contacts VOLTAGES AT

11、RADIOTRON SOCKETS Tube No. Filament to Grid (Volts) Filament to Plate (Volts) Plate Current Milliamperes Filament Voltage 1 2 3 4 5 6 3.5 *2.0 *2.0 *2.0 8 33 63 68 73 30 78 150 4.0 4.5 4.0 1.8 5 16 4.9 4.8 4.7 4.7 5.1 5.1 *Will vary with type of Tester used. CABINET OF RADIOLA 33 DC IS IDENTICAL IN

12、APPEARANCE TO RADIOLA 33 A.C. LOCATION AND ADJUSTMENT OF R -F COMPENSATING CONDENSER IS IDEN- TICAL TO THAT OF RADIOLA 33 A.C. S. P. U CONDENSER PACK 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 i46-A 33(Mc) 220V. ANTENNA 00012R F MFO,COUPL

13、ING LIX-112-A 0 4 0.1 MED (a) h 0.00016 MED 4C GRID RES (4.0 MEG.) MAROON (0) - 0.1 a MFD. F COMPENSATING CONDENSER (Cl.) 0.1 MFD (C) _L GROUND TO CHASSIS FRAME THREE GANG TUNING CONDENSER -4,_, 0.00016 MED 24.11 T F T R F f1.10112 -A C UX-112-A GRI RESTS OR (4.0 MEG) MAROON T01MFD (b) 0.00016 MFD G

14、RID LEAK (4.0 MEG )MAROON DE ECTOR0.00016 MFDAF )( UK -142-AC,UX-112-A 0.0012IN ER STAGE A F MFDTRANSFORMER DETECTOR PLATEII -1 DETECTOR SHUNT - RESISTOR (30,00041) BLUE SERIES RESISTOR 0.5 MED. (14,3006) RED AND BLACK-, (Y) 1.-MAROON .1 0.5 MED T(n) 563 rt.37 11 PILOT LAMP O 4.00016 MFD. ( BLACK WI

15、TH YELLOW TRACER BROWN-R. -BROWN OUTPUT TERMINALS -BROWN BLACK WITH NOTE: A SMALL PART OF THE PRODUCTION IS WIRED AS INDICATED BY THE DOTTED LINES CONNECTIONS WHICH ARE ADDED TO THE REGULAR PRODUCTION CONNECTIONS REMOVED FROM REGULAR PRODUCTION. -Schematic Circuit 1)iagrc nl YELLOW TRACER -BLACK BRO

16、WN 0.5 MFD BLUE RED -BLUE -YELLOW -GREEN 238011. NW,WAAAAANWMAAMNY PLATE SUPPLY SERIES RESISTOR. .-WAAVIOAANA.VANY, 4011515 IL TOTAL - TOTALTOTAL .-ALANAWMAAAAAAMF, FILAMENT SERIES RESISTORS 3 MFD t 1LIFO. UX-171-A 11611 )( BIASING RESISTOR. ANYVVVVW1411 215 11 11511fir FILTER. REACTORS %MS 25.n. 1.

17、5 MFD. LINE VOLTAGE REGULATING RESISTOR. 33-x 33e- 33 - 41235V/ 225 V 3 2. 215 v 1205v BLUE -Ow BLUE -111. YELLOW -1. GREEN -1. LINE VOLTAGE /REGULATING SWITCH R.F.LINE INDUCTOR 1.511 =05 MFD R F LINE. INDUCTOR 1.5/1. Schematic circuit diagram of socket power unit. Approx. Trans. Resistance Values 1

18、st 15c2nd Interstage Trans.Output Trans. Primary 1000 ohms Secondary 5000 ohms Primary 580 ohms Secondary770ohms =0.5 MFD. PLUG TO D.C. LINE (200 TO 240 VOLTS) PAGE 7-A RADIOLA33(D.C) 110 V. 107.5-127.5 Volts Direct Current -40 Watts CABINET OF RADIOLA 33 DC IS IDENTICAL IN APPEARANCE TO RADIOIA 33

19、A.C. LOCATION AND ADJUSTMENT OF R -F COMPENSATING CONDENSER IS IDENTICAL TO THAT OF RADIOLA 33 A.C. C BATTERY SUPPORT 7 BRACKETS UX112-AUX-112-AUX-112-AUX-112-AUX-112-A LINE VOLTAGE REGULATING SWITCH (COVER REMOVED) 0 Pee FILAMENT RESISTORS OUTPUT REEt2 TERMINALS UX171-AUX-171-A INPUT TRANSFORMER OU

20、TPUT TRANSFORMER AND FILTER CONDENSERS FILTER REACTORS -Radiotron socket layout showing filament, plate and grid terminals INTERNAL CONNECTIONS ,0.1 14F D. FrEl+1-)11-11- INPUT TRANSFORMEROUTPUT TRANSFORMER CONNECTING LEADSCONNECTING LEADS FILTER CONDENSER CONNECTING LEADS -Internal connections of i

21、nput transformer, output transformer and filter condenser Radiola 33 (D.C.) when connected to a 118 -volt D.C. line and with the proper C battery. Line voltage regulating switch at position No. 3. Tube No. Filament to Grid Volts Filament to Plate Volts Plate Current Milliamperes Filament Voltage 13.

22、5505.0 4.6 23.5585.54.8 33.560 6.55.0 43.5251.5 5.1 510.757.0 5.25 623.9511.04.5 721.9511.0 4.75 RCA VICTOR DIVISION OF RADIO CORPORATION OF AMERICA, CAMDEN N. J., U. S. A. PAGE8-A 33 (o.c) Bo v. 0.001211t1R.F. MFD., COUPLING G4UX-112-A 0.1 MFD. (b) r THREE GANG TUNING CONDENSER -A 10.00016 MFD. .c.

23、 0.00016 MFD. 2,!R.F. -C- UK-112-A GRID RES. (4.0 NW MAROON ( (c) d) 0.1 0.1 NMI R.F. COMPENSANNG CONDENSER GROUND TO CHASSIS FRAME 0.1 MFD. (a) GRID RESISTOR (4.0 MEG.) MAROON 31.0R.F. (UX-112-A 0.00016 MFD 0.1 MFD - GRID LEAK (4.0 MEG.) MAROON DETECTOR0.00016 MFD.LET A.F. UX112-AC4UX-112-A DETECTO

24、R PLATE 0.5 MFD. SERIES RESISTOR (14,300n) RED AND SLACK -.19),r DETECTOR SHUNT -RESISTOR (30,000n) BLUE 0.5 UM (n) PILOT LAMP Note-Italic reference letters() to(h) shown in parenthesis refer to circuit connections of con- e GROUND Schematic circuit diagram of receiver and socket power unit -BLACK-W

25、ITH-RED-TRACER -BLUE FILAMENT BY-PASS TAPPED RESISTOR lie IL -GREEN 166.11. R.F. AND DETECTOR PLATE SUPPLY SERIES RESISTOR (450 4 -BLACK -BLUE -BROWN -YELLOW INPUT TRANSFORMER AAAAAP S220011 -1O- C BATTERY-121 2E T 6 2.1.0 A. F 2UX171-A IN PUSH PULL ,OUTPUT TRANSFORMER 4 PI OUTPUT PIN JACKS TO LOUDS

26、PEAKER P2 GREEN AND YELLOW 2.0 MED. SERIES FILAMENT RESISTORS E BLACK (TO REAR OF CABINET) -RED-AND-BLACK -RED 40.n.252 11. TOTALTOTAL 3.0 MFD. FILTER REACTORS LINE VOLTAGE REGULATING RESISTOR LINE VOLTAGE REGULATING /SWITCH . 16A4125 V.4- R.F. LINE 120 V. /INDUCTOR (I.SIL) 3 .,4 A 0 1611. 16.n. 2ifsv. 110 V 111II BLACK WITH GROUND TO S.P. U. FRAME YELLOW TRACER R.F. LINE 0.5 MFD. 1 PLUG TO - 0.5 WO. INDUCTOR (1.5 n). J016.0J-4 OPERATING SWITCH BROWN