RCA-Victor-Co-Inc-104 电路原理图.pdf

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1、PAGE 229-A LOUDSPEAKER 104 RCA Loudspeaker, Model 104, consists essentially of two main parts, the Repro- ducer unit and the Rectifier -Power -Amplifier unit. It is designed to operate from an alter- nating current supply of 105 to 125 volts, 40 to 45 cycles (using Ballast tube, Radiotron UV -886) a

2、nd 50 to 75 cycles (using Ballast tube, Radiotron UV -876) INPUT 000, 1111 00 OUTPUT PLATE IME 4W oFl d +45+50 -B PL CE F IeD A;uD 7PI t PRIM haw 151M UV 876 FIELD Continuity circuit of R.P.A. Unit eUX 2010UX 216.5UX 2165UX 674 0 00C)0 0 sz34 0 GO GO GO R.P.A. socket layout RCA D.C. SOCKET POWERED L

3、OUDSPEAKER 104 RCA D.C. Socket Powered Loudspeaker 104 is identical to the regular A.C. model with the exception that the Socket Power Unit is designed to operate from the regular 110 -volt D.C. lines. This loudspeaker contains a power amplifier consisting of four Radiotrons UX-171A connected in a p

4、ush-pull circuit and furnishes a B voltage supply to any receiver and complete plate grid and filament voltages for Radiolas 25 or 28 when used in conjunction with the proper A.C. Package. A. C. Circuits Connections for model With potentiometer Connections for model without potentiometer RCA VICTOR

5、DIVISION OF RADIO CORPORATION OF AMERICA, CAMDEN N. J., U. S. A. 收音机爱 好者资料库 RadioFans.CN PAGE 230-A LOUDSPEAKER104 0102 +c-A LINK 0304054207 .8d9TERM. STRIP. -BA445 +90-1. Va -22Yi OR18 RCA Loudspeaker 104 D.C. socket power unit schematic circuit with terminal connections and VOLTAGES FOR LOUDSPEAKE

6、R SUPPLYING B CURRENT ONLY.LINK BETWEEN TERMINALS 1 AND 2 The terminal strip numbers shown in Figureare located consecutively from left to right when facing the Loudspeaker from the rear, omitting the first four terminals which are for the input and output of the loudspeaker. USING RCA D.C. SOCKET P

7、OWERED LOUDSPEAKER 104 WITH RADIOL. 25 OR 28 FOR CCU PLETE SOCKET POWER OPERATION IINK BETWEEN TERMINALS 2 AM) 3 RCA D.C. Socket Powered Loudspeaker 104 may be used in conjunction with Radiolas 25 and 28 by using the regular A.C. Package furnished for this purpose. However, when making an installati

8、on of this kind the following deviations from the procedure outlined in A.C. Package Instruction Book should be observed: FIELD TerminalsVoltage I 3 4 1 1 to to to to to 3 4 5 6 7 31 21.5 41 16 1/2 22 1/2 or18 1.Resistor Unit UP -591 is not used. 2.instead of opening the link as on an A.C. mach- ine, the position of the link is changed to ter- minals 2 and 3 Should the readings on the C battery terminals 1 to 7, show less than 20 volts replace the C battery. 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN