RCA-Victor-Co-Inc-RADIOLA-21 电路原理图.pdf

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1、PAGE 92-A RADIOLAS21 & 2 2 DISTANT LOCAL .00023 MFD RADIOLA 22 UX-222 FILAMENT RESISTOR -w 6.5 ft GANG CONDENSERS -,1/4 ux-222 IJ R.F. I MFD ALL GROUND CONNECTIONS ARE TO GROUND -LEAD AND TO FRAME ux-222 SPECIFICATIONS Type of Receiver-Screen Grid Tuned R.F. Battery Recommended Antenna Length -25-60

2、 feet. Type of Filament Power -Storage Battery or Eliminator. Type of Plate and Grid Power-B and C Batteries or Eliminator. Number and Type of Tubes-Two UN -222. 2 L X-ll2A, 1 UX-112A or UX-171A-Total 5. Number of R.F. Stages-Two. Type of Detector-Grid condenser and leak. Number of A.F. Stages-Two.

3、Type of Loudspeaker (R22 only)-Magnetic. .00072 MFD. Jam MFD. OPERATING SWITCH RADIOLA 21 UX-1 2-A.00016Ux-112-A BET.MFDAIV A.F. DETECTOR PLATE RESISTOR 30,000.11 (BLUE) VOLUME CONTROL 50.000 st UK -I12 -A OR UX-171-A PWR. A.F. t OUTPUT CONDENSER .5 MFD. OUTPUT 6 OUTPUT CHOKE 8+ PWR. 1.55RED PWR C-

4、9 QUACK AND GREEN oRLACK WITH GREER TRACER -Schematic circuit diagram of Radiolas 21 and 22 receivers A+ 6+61 6 YELLOW MAROON BLACK WITH A- 9- YELLOW TRACER 6 GREEN WITH 0+ 135 RED TRACER 61 MAROON AND RED RCA VICTOR DIVISION OF RADIO CORPORATION OF AMERICA, CAMDEN N. J., U. S. A. 收音机爱 好者资料库 RadioFa

5、ns.CN PAGE 93-A RADIOLAS 21 & 22 OPERATING SWITCH TO TO GROUNDANTENNA 4e,4446r 84TRAcER UX-112-A UX-222LX -222 RECEIVER ASSEMBLY D1START LOCAL .00023 11P 1L MATTERY GAWE GANG CONDENSERS-A RCA -232 21PAD .1 RFD ALL GROUND CONNECTIONS TO GROUND LEAD AND TO Mud( or( UX- II2,A LOCAL- DISTANT SWITCH AUDI

6、V- TRANSF:i OUTPUT FILTER TO LOUDSPEAKER 00072 ADD. 4 NEG. YELLOW GREEN BROWN AND BLACK MFD BROWN YELLOW BLUE RED BLACK BLUE GREEN RED Internal connections of 4.F. couplingunit RCA 230.00016RCA -230 -D T.mFDIT A.F. =. DETECTOR PLATE RESISTOR 30,000n.(sLut) RCA -231 PAR. A.11 OUTPUT CONDENSER il .511

7、7-11 OUTPUT OUTPUT CHOKE 0+ 135 *RED C- P_4WR 18 ,EILAtetiCR TRACER C-4 BLACK AND GREEN A+ 0+67 YELLOW MAROON fii voLuM CONTROL 50000/L A- 0 ORATING SWITCH REVISED RADIOLAS 21 and 22 for use with RADIOTRONS RCA -23o, RCA -231 and RCA-232. SLACK W1TA 7E110017RA/ GREEN Amin 8+90 RED TRACER 0 MAROON AND R50 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN