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Naval History and Heritage Command

Naval History and Heritage Command

C-Tube Illustration #1

Image illustrating a C-Tube listening device
Title: C-Tube Illustration #1
Caption: C-tubes were acoustical devices used to identify the presence of enemy vessels, especially submarines, and track their distance and direction of approach.
Original Location: Submarine Signal Company Descriptive Specifications of General Electric Company's "C" Tube Set, RG 45, Entry 520, Box 338, National Archives, Washington, DC
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Document Type
  • Scientific-Technical Images
Wars & Conflicts
  • World War I 1917-1918
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