45S circuit 1

Douglas Radioelétrica S.A.; São Paulo

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  • Year
  • 1950 ??
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 277206

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

 Technical Specifications

  • Number of Tubes
  • 6
  • 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
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • from Radiomuseum.org
  • Model: 45S circuit 1 - Douglas Radioelétrica S.A.;
  • Notes

  • The model 45S from Douglas Radiioelétrica has 5 distinct versions

    MODEL

    CHARACTERISTIC

    45S circuit 1

    6SA7 converter, series connected filaments, ac dc, 220V

    45S circuit 2

    As circuit 1, with different 6SA7 screen grid feed

    45S circuit 3

    12SA7 converter, series connected filaments, ac dc, 220V

    45S circuit 4

    As circuit 3 with magic eye

    45S circuit 5

    6SA7 converter, parellel connected filaments, ac 220V

    3 sections variable capacitor (3x 410 pF)
    Tone control , phono input, high-low IF gain switch

    Supplied in kit format
    Rádio receptor de duas faixas fornecido em kit

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

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