• Year
  • 1904
  • Category
  • Morse-Equipment & TTY, RTTY, TDD etc.
  • Radiomuseum.org ID
  • 191360
    • Brand: Martinola

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Martin's Autoplex - Vibroplex Company, Inc.; New
  • Shape
  • Tablemodel, with any shape - general.
  • Notes
  • In 1904, Horace Martin began manufacture of an all-metal Autoplex. The heavy metal bar running from right to left across the top of the key was made to vibrate and produce dots by the two coils which were energized by batteries. Not very many of these keys were made.
  • Mentioned in
  • Perera's "Telegraph Collectors Guide"
  • Author
  • Model page created by Bernd P. Kieck. See "Data change" for further contributors.

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