• Year
  • 1929/1930
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 195828

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

 Technical Specifications

  • Number of Tubes
  • 8
  • Main principle
  • TRF (Tuned-Radio-Frequency but use of regeneration unknown); Screengrid 1926-1935
  • Tuned circuits
  • 4 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / 110 - 120 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 18 inch = 45.7 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: B35 - Sonora Phonograph Co., Inc.;
  • Shape
  • Console, Lowboy (legs < 50 %).
  • Notes
  • The Sonora models B31, B33 and B35 have the same schematic with a transformer coupled push-pull output stage.
  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

 Collections | Museums | Literature

 Forum