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

Made:
1950-1970 in England

Buy this image as a print 

Buy

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

License

Buy this image as a print 

Buy

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

License

Buy this image as a print 

Buy

License 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

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:
glass, metal (unknown) and plastic (unidentified)
type:
thermionic valve
taxonomy:
  • component - object
credit:
Donated by the Post Office Research Department