Short Wave Coupler Cat. No. 3

Tri-City Radio Supply Co. (Tresco); Davenport, Iowa

Data
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  • Year
  • 1921/1922
  • Category
  • Radio module pre 1926 (not a part, not a key)
  • Radiomuseum.org ID
  • 321331

 Technical Specifications

  • Main principle
  • Tuner pre 1926 (not a wave trap)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Short Wave Coupler Cat. No. 3 - Tri-City Radio Supply Co.
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Notes

  • Tresco Short Wave Coupler. Catalog No. 3

    Can be used with either crystal or audion for wireless phone reception. 

    Wavelength Range: 200 to 600 meters

  • Net weight (2.2 lb = 1 kg)
  • 4 lb (4 lb 0 oz) / 1.816 kg
  • Price in first year of sale
  • 15.00 $
  • Mentioned in
  • - - Manufacturers Literature (1921-1922 Tresco Radio Apparatus catalog page 4)
  • Author
  • Model page created by Alan Larsen. See "Data change" for further contributors.

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