![](https://coimages.sciencemuseumgroup.org.uk/52/717/large_thumbnail_1922_0732__0001_.jpg)
NT22 silica wireless valve, 1922-1924
![NT22 Silica wireless valve](https://coimages.sciencemuseumgroup.org.uk/455/107/medium_smg00238755.jpg)
NT22 Silica wireless valve, constucted by the Mullard Radio Valve Company, Putney, from parts presented by the Thermal Syndicate of Wallsend-on-Tyne, 1922-1924. Manufactured to Admiralty specifications.
Details
- Category:
- Electronic Components
- Object Number:
- 1924-614
- Materials:
- silicon, metal (unknown) and glass
- Measurements:
-
overall: 1000 mm 200 mm, 2.42 kg
- type:
- thermionic valve
- credit:
- From the Lords Commissioners of the Admiralty