• Country
• Brazil

• Manufacturer / Brand
• Douglas Radioelétrica S.A.; São Paulo

• Year
• 1950 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 275467

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

• Number of Tubes
• 5

• Valves / Tubes
• 6K8 6K7 6Q7 25A6 25Z6

• Main principle
• Superheterodyne (common)

• 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: 25C circuito 2 - Douglas Radioelétrica S.A.;

• Notes

• The model 25C from Douglas Radioelétrica has 2 distinct versions

  MODEL	CHARACTERISTIC
  25C circuit 1	6A8 converter, series connected filaments, ac dc
  25C circuit 2	6K8 converter, series connected filaments, ac dc

  2 sections variable capacitor (2x 410 pF)
  Tone control
  Supplied in kit format

  Receptor Douglas fornecido em kit, em duas versões.

• Literature/Schematics (1)
• Manufacturer literature

• Author
• Model page created by Antonio Rabitti. See "Data change" for further contributors.

• Other Models

• Here you find 69 models, 17 with images and 69 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Douglas Radioelétrica S.A.; São Paulo