• Country
• Brazil

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

• Year
• 1950 ??

• Category
• Kit (Parts plus instruction) or building instructions only

• Radiomuseum.org ID
• 281391

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

• Number of Tubes
• 5

• Valves / Tubes
• 6SA7 6SK7 6SQ7 5Y3GT

• Main principle
• Superheterodyne (common)

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

• Power type and voltage
• Alternating Current supply (AC) / 115 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• from Radiomuseum.org
• Model: 310-S circuit 2 - Douglas Radioelétrica S.A.;

• Notes

• The model 310 from Douglas Radiioelétrica has 2 distinct versions known in Brazil

  310-A circuit 1 = coils for 6A8 converter
  310-S circuit 2 = coils for 6SA7 converter

  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