• Year
  • 1939
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 183710

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

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 110-120 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 20 W (unknown quality)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: T-20W25 - Thordarson Electric Mfg. Co. ;
  • Shape
  • Chassis only or for «building in»
  • Price in first year of sale
  • 75.00 USD
  • Author
  • Model page created by Hannes Gerber. See "Data change" for further contributors.

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