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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
LicenseSubmarine repeater pentode P.O
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Submarine repeater pentode P.O
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Submarine repeater pentode P.O
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Submarine repeater pentode P.O. type 8P, made by the Post Office, England, 1950-1970.
Valves used in submarine telephone cables need to be very long lasting, due to the effort and cost involved in retrieving a cable from the seabed in order to replace one.
Details
- Category:
- Electronic Components
- Object Number:
- 1974-126
- Materials:
- plastic (unidentified), metal (unknown) and glass
- type:
- thermionic valve
- credit:
- Donated by the Post Office Research Department
