• Year
  • 1922
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 193596

 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
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Two Step Amplifier Unit - Tri-City Radio Supply Co.
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Dimensions (WHD)
  • 12 x 14 x 8.5 inch / 305 x 356 x 216 mm
  • Notes
  • The TRESCO Two Step Auio Amplifier. It was sold separately but was also part of the TRESCO Sectional Universal. There were four separate pieces that comprised the Sectional Universal. The Tuner Detector Unit, the Two-Step audio Amplifier Unit, the "A" Battery Box unit and the Loud Speaker Unit which is made to fit the Westinghouse Vocarola speaker. A top and base were also available for either 2, 3 or 4 units. The Two Step Audio Amplifier Unit sold for $40 finished in mahogany or $35 finished in French Gray oak.
  • Price in first year of sale
  • 40.00 $
  • Mentioned in
  • 1922 Waveland Radio Co. catalog
  • Literature/Schematics (1)
  • July 1922 Radio News advertisement
  • Author
  • Model page created by Alan Larsen. See "Data change" for further contributors.

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