This image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence
This image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence
This image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence
This image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence
This image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence
This image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence
This image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence
This image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence
This image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence
Andrew's guillotine relay, 1864
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Andrew's guillotine relay, 1864
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Andrew's guillotine relay, 1864
telecommunications; communications; electrical; electrical relay; relay; guillotine relay; guillotine; William Stratford Andrew; Stratford Andrew; Andrew; Andrew's guillotine relay; wood; metal; 1864; 1860's; 19th Century
telecommunications; communications; electrical; electrical relay; relay; guillotine relay; guillotine; William Stratford Andrew; Stratford Andrew; Andrew; Andrew's guillotine relay; wood; metal; 1864; 1860's; 19th Century
Polarized 'guillotine' relay, brought out by W Andrews, England, 1862-4.
A relay is an electrically operated switch,
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Polarized 'guillotine' relay, brought out by W Andrews, England, 1862-4.
A relay is an electrically operated switch,
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Polarized 'guillotine' relay, brought out by W Andrews, England, 1862-4.
A relay is an electrically operated switch,
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Polarized 'guillotine' relay, brought out by W Andrews, England, 1862-4.
A relay is an electrically operated switch,
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Polarized 'guillotine' relay, brought out by W Andrews, England, 1862-4.
A relay is an electrically operated switch,
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Polarized 'guillotine' relay, brought out by W Andrews, England, 1862-4.
A relay is an electrically operated switch,
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Polarized 'guillotine' relay, designed by W Andrews, England, 1862-1866.
A relay is an electrically operated switch, and allowed weak telegraph signals to be boosted by a local power source. Polarised electrical relays work by using an armature in between the poles of a permanent magnet in order to increase sensitivity. This one has an armature in the form of a semicircular magnet, placed horizontally and vibrating between two electromagnets. The current passes through both sets of coils, which are wound so that one attracts, and the other repels the armature.
On display
Science Museum: Information Age Gallery: Cable
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Details
- Category:
- Telecommunications
- Object Number:
- 1876-1490
- Materials:
- brass (copper, zinc alloy), glass, wood (unidentified)
- type:
- electric switch
- taxonomy:
-
- component - object
- credit:
- From William Stratford Andrews
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