Magnetic key, 1850-1870

Made:
1850-1870 in Germany
maker:
Siemens & Halske AG

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Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Magneto induction key for an electric telegraph, made by Siemens and Halske, Germany, 1850-1870.

This magneto induction key was used in an electric telegraph, and was made by Siemens and Halske around 1860. The key did not require a battery as it incorporated a magneto generator actuated by pressure of the Morse key which provided the signalling current.

Details

Category:
Telecommunications
Object Number:
1923-513
Materials:
brass (copper, zinc alloy), iron, metal (unknown) and wood (unidentified)
type:
telegraph
taxonomy:
  • component - object
credit:
Donated by Siemens Brothers and Company Limited