• Country
• United States of America (USA)

• Manufacturer / Brand
• Vibroplex Company, Inc.; New York, NY

• Year
• 1911–1923

• Category
• Morse-Equipment & TTY, RTTY, TDD etc.

• Radiomuseum.org ID
• 125042

• • Brand: Martinola

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Model X [square pendulum] - Vibroplex Company, Inc.; New

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 3.5 x 0 x 0 inch / 89 x 0 x 0 mm

• Notes
• Vibroplex Model "X".
  This key has an intricate mechanism which allows a single set of contacts to make both the automatic dots and the dashes.
  The first model "X" keys had square vibrating shafts.

• Mentioned in
• Perera's "Telegraph Collectors Guide"

• Author
• Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.

• Other Models

• Here you find 29 models, 21 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Vibroplex Company, Inc.; New York, NY