• Year
  • 1912–1914
  • Category
  • Radio module pre 1926 (not a part, not a key)
  • Radiomuseum.org ID
  • 354511

 Technical Specifications

  • Main principle
  • Tuner pre 1926 (not a wave trap)
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Two Slide Loose Coupler - Colby's Telegraph School;
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 11 x 4.5 x 4.5 inch / 279 x 114 x 114 mm
  • Notes
  • This two slide loose coupler was the first product sold by the Colby's Telegraph School.

    A patent was applied for it's design on February 6, 1912 and granted April 8, 1913. 

  • Price in first year of sale
  • 10.00 USD
  • Mentioned in
  • -- Original prospect or advert
  • Author
  • Model page created by Alan Larsen. See "Data change" for further contributors.

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Collections

The model Two Slide Loose Coupler is part of the collections of the following members.

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