• Country
• Brazil

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

• Year
• 1950 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 280720

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

• Number of Tubes
• 5

• Valves / Tubes
• 1A7GT 1N5GT 1H5GT 1T5GT 117Z6GT

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• Line / Batteries (any type) / 220 / 90 & 1.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6 inch = 15.2 cm

• from Radiomuseum.org
• Model: 66 circuit 4 - Douglas Radioelétrica S.A.;

• Notes

• The model 66 from Douglas Radiioelétrica has 3 distinct versions known in Brazil

  MODEL	CHARACTERISTIC
  66A circuit 1	90V dry battery power supply
  66 circuit 4	220Vac - 90Vdc power supply - 117Z6 rectifier
  66 circuit 5	220Vac - 90Vdc power supply - 70L7 rectifier - amplifier

  Supplied in kit format   Rádio receptor fornecido em kit

• 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