• Year
  • 1930
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 51660
    • Brand: Pierce Airo

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • TRF (Tuned-Radio-Frequency but use of regeneration unknown); Screengrid 1926-1935
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC)
  • Loudspeaker
  • Permanent or electro-dynamic (moving coil), system not known yet.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: AC724 - DeWald Radio Mfg. Corp.,
  • Shape
  • Chassis only or for «building in»
  • Notes
  • Pierce Airo. One dial (primary tuning control knob)
  • External source of data
  • Ernst Erb

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