• Year
  • 1935–1970 ??
  • Category
  • Morse-Equipment & TTY, RTTY, TDD etc.
  • Radiomuseum.org ID
  • 74420

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: General Purpose Key J-37 - MILITARY U.S. different makers
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 73 x 25 x 130 mm / 2.9 x 1 x 5.1 inch
  • Notes
  • General Purpose Key J-37 for the US-millitary services. This Phenolic oval based key was very widely used in many different applications. It was made by at least 5 manufactures and mounted on several different bases.
    Also for using with a knee-clip, then it is called J-45.
  • Net weight (2.2 lb = 1 kg)
  • 0.1 kg / 0 lb 3.5 oz (0.22 lb)
  • Mentioned in
  • Perera's "Telegraph Collectors Guide"
  • Author
  • Model page created by a member from D. See "Data change" for further contributors.

 Collections | Museums | Literature

Collections

The model General Purpose Key is part of the collections of the following members.

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