• Year
  • 1921/1922
  • Category
  • Radio part (not a module) 
  • Radiomuseum.org ID
  • 321354

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Master Key Unit Cat. No. 13 - Tri-City Radio Supply Co.
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Notes
  • Master Key Control Unit

    Catalog No. 13

    Cuts out or in condensers, variometers and tuners.

     

  • Net weight (2.2 lb = 1 kg)
  • 3 lb (3 lb 0 oz) / 1.362 kg
  • Price in first year of sale
  • 13.75 $
  • Mentioned in
  • - - Manufacturers Literature (1921-1922 Tresco Radio Apparatus catalog page 8)
  • Author
  • Model page created by Alan Larsen. See "Data change" for further contributors.

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