• Year
  • 1931/1932 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 35670
    • alternative name: American Graphophone || Columbia Recording

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • TRF without regeneration
  • Tuned circuits
  • 3 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC)
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: C-31 - Columbia Phonograph, American
  • Shape
  • Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.
  • External source of data
  • Ernst Erb

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