• Year
  • 1948 ??
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 136474
    • alternative name: Operadio Mfg,

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

 Technical Specifications

  • Number of Tubes
  • 11
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 105 - 125 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Leather / canvas / plastic - over other material
  • from Radiomuseum.org
  • Model: 1A45 - Operadio Corp.; St. Charles IL
  • Shape
  • Tablemodel, low profile (big size).
  • Notes
  • 4 channel audio amplifier.
  • Author
  • Model page created by Peter Hoddow. See "Data change" for further contributors.

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