Cooke and Wheatstone's ABC telegraph transmitter
- inventor:
- CHARLES WHEATSTONE
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LicenseThis image is released under a CC BY-NC-SA 4.0
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Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0
Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0
Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0
Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0
Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
License
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
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
Cooke and Wheatstone's ABC telegraph transmitter, unknown maker, England, 1840.
Charles Wheatstone (1802-1875) was always interested in developing electric telegraph systems that did not require knowledge of a code. The ABC telegraph worked like a rotary telephone dial and could be used with little training. To transmit, letters were selected by pressing the appropriate buttons and rotating the handle continuously. The indicator stepped round the dial until the desired letter was reached, sending the correct number of electrical impulses to the receiver whose indicator stepped round in unison. It was slow, only transmitting 15 words a minute, but was simple to use.
Details
- Category:
- Telecommunications
- Object Number:
- 1884-103
- Materials:
- copper (alloy), steel (metal), ivory and wood (unidentified)
- Measurements:
-
overall: 110 mm 230 mm, 1.3 kg
- type:
- telegraph
- credit:
- Donated by R Sabine
Related Objects
Cryptograph (coding and decoding machine) by Sir Charles Wheatstone, 1843-1875
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Sir W. F. Cooke's original electric alarum, 1835-1840
