23C circuit 3

Douglas Radioelétrica S.A.; São Paulo

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  • Year
  • 1950 ??
  • Category
  • Kit (Parts plus instruction) or building instructions only
  • Radiomuseum.org ID
  • 273894

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 465 kHz
  • Wave bands
  • Broadcast and Short Wave (SW).
  • Power type and voltage
  • AC/DC-set / 220 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • from Radiomuseum.org
  • Model: 23C circuit 3 - Douglas Radioelétrica S.A.;
  • Notes

  • MW = 540 - 1600 kHz
    SW = 5.8 - 18 MHz

    Tone control
    The model 23C from Douglas Radioelétrica has 6 distinct versions

    MODEL

    CHARACTERISTIC

    23C circuit 1

    6A8 converter, series connected filaments

    23C circuit 2

    6A8 converter, parallel connected filaments (ac only)

    23C circuit 3

    6K8 converter, series connected filaments

    23C circuit 4

    12A8 converter, series connected filaments, field coil speaker

    23C circuit 5

    12A8 converter, series connected filaments, PM speaker

    23C circuit 6

    UCH42 converter, series connected filaments

     

  • Literature/Schematics (1)
  • - - Manufacturers Literature
  • Author
  • Model page created by Antonio Rabitti. See "Data change" for further contributors.

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