• Year
  • 1923
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 202107
    • Brand: Ufonic

 Technical Specifications

  • Number of Tubes
  • 2
  • Main principle
  • Audio-Amplification; 2 AF stage(s)
  • Wave bands
  • - without
  • Power type and voltage
  • Storage and/or dry batteries / 2 x 22.5 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Two-Stage Amplifier A-2 - Echophone Radio, Inc. - see
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Dimensions (WHD)
  • 9.5 x 6.5 x 8 inch / 241 x 165 x 203 mm
  • Net weight (2.2 lb = 1 kg)
  • 4 lb (4 lb 0 oz) / 1.816 kg
  • Price in first year of sale
  • 73.70 $
  • Author
  • Model page created by Alan Larsen. See "Data change" for further contributors.

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