Submarine-repeater pentode, P.O. type 6P10, 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. The 6P10 valve was used in shallow water submarine communications systems. It had a platinum core, as tests at the Post Office Research Centre had shown that this was more effective at preventing resistance increase. 6P10 valves were used in submerged repeaters laid between Holyhead and Dublin, and Lowestoft and Hague in 1953-1954.
- Electronic Components
- thermionic valve
- component - object
- Donated by the Post Office Research Department
Cite this page
We encourage the use and reuse of our collection data.
Data in the title, made, maker and details fields are released under Creative Commons Zero
Descriptions and all other text content are licensed under a Creative Commons Attribution 4.0 licence
Download catalogue entry as json
Download manifest IIIF
Our records are constantly being enhanced and improved, but please note that we cannot guarantee the accuracy of any information shown on this website.