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
1940-8: Crossley desk-type telephone transmitter, made by Emmot and Blakey, Bradford, West Yorkshire, England,
Science Museum Group Collection
© The Board of Trustees of the Science Museum
1940-8: Crossley desk-type telephone transmitter, made by Emmot and Blakey, Bradford, West Yorkshire, England,
Science Museum Group Collection
© The Board of Trustees of the Science Museum
1940-8: Crossley desk-type telephone transmitter, made by Emmot and Blakey, Bradford, West Yorkshire, England,
Science Museum Group Collection
© The Board of Trustees of the Science Museum
1940-8: Crossley desk-type telephone transmitter, made by Emmot and Blakey, Bradford, West Yorkshire, England,
Science Museum Group Collection
© The Board of Trustees of the Science Museum
1940-8: Crossley desk-type telephone transmitter, made by Emmot and Blakey, Bradford, West Yorkshire, England,
Science Museum Group Collection
© The Board of Trustees of the Science Museum
1940-8: Crossley desk-type telephone transmitter, made by Emmot and Blakey, Bradford, West Yorkshire, England,
Science Museum Group Collection
© The Board of Trustees of the Science Museum
1940-8: Crossley desk-type telephone transmitter, made by Emmot and Blakey, Bradford, West Yorkshire, England,
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Telephone receiver, Crossley's patent 1880, unknown maker, British, 1880.
L J Crossley designed this improvement to the simple carbon pencil transmitter devised by David Hughes. Crossley used four carbon pencils to improve the sensitivity of the transmitter as well as this distance over which sounds could be transmitted. His transmitter was used with telephones manufactured by Blakey and Emmott, which were bought in large numbers by the British Post Office.
On display
Science Museum: Information Age Gallery: Exchange
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Details
- Category:
- Telecommunications
- Object Number:
- 1953-473
- Materials:
- copper (alloy), metal (unknown), plastic (unidentified) and textile
- type:
- telephone component
- taxonomy:
-
- component - object
- telephone
- credit:
- Donated by the Institution of Electrical Engineers
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