• Country
• Brazil

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

• Year
• 1950 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 278191

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

• Number of Tubes
• 6

• Valves / Tubes
• 6K7 or 6D6 6A8 or 6A7 6K7 or 6D6 6Q7 or 75 25A6 or 43 25Z6 or 25Z5

• Main principle
• Superhet with RF-stage; ZF/IF 465 kHz

• Tuned circuits
• 7 AM circuit(s)

• 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: 58 circuit 1 - Douglas Radioelétrica S.A.;

• Notes

• The model 58 from Douglas Radiioelétrica has 6 distinct versions

  MODEL	CHARACTERISTIC
  58 circuit 1	Series connected filaments, 220V ac dc, 6A8 converter
  58 circuit 2	Parallel connected filaments, 220V ac, magic eye
  58 circuit 3	As circuit 1, 6K8 converter
  58 circuit 4	Car battery power supply supply
  58 circuit 5	Series connected filaments, 220V ac dc, magic eye
  58 circuit 6	Parallel connected filaments, push pull 6F6

  Supplied in kit format. Rádio receptor fornecido em kit

• Mentioned in
• - - Manufacturers 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