Items tagged electrical switches in MV Collections

(showing 1 - 4) 4 items

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  Telegraph Switch - Reversing, late 19th Century

  A switch used for reversing small currents in telegraphy. Used at Melbourne Observatory.

  From: South Yarra, Australia Images: 1
• No Image Available

  Telegraph Key - Reversing, circa1900

  Reversing telegraph key used for the transmission of signals in the electric telegraph system. This type of key was used in conjunction with long submarine telegraph cables which dis ...

  Images: 0
• No Image Available

  Telegraph Key - E. A. Machin, Reversing, circa1911

  Reversing telegraph key used for the transmission of signals in the electric telegraph system. This type of key was used in conjunction with long submarine telegraph cables which dis ...

  From: Melbourne, Australia Images: 0
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  Telegraph Key - Disjunctor, Date Unknown

  Similar in appearance and construction to a conventional telegraph transmission key. The ebonite knob is marked "DISJUNCTOR KEY". The exact function of such a key is unknown.

  Images: 1