Submarine repeater pentode P.O. type 8P, 1950-1970

Submarine repeater pentode P.O Submarine repeater pentode P.O Submarine repeater pentode P.O

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Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

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License this image for commercial use at Science and Society Picture Library

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Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

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License this image for commercial use at Science and Society Picture Library

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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
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