• Year
  • 1942 ?
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 57814
    • Brand: Doraphone

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

 Technical Specifications

  • Number of Tubes
  • 3
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 110 Volt
  • from Radiomuseum.org
  • Model: DM1 - Setchell Carlson, Inc.; St.
  • Notes
  • Intercommunication system.
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 14 = 1944 = before 1943

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