![](https://coimages.sciencemuseumgroup.org.uk/50/660/medium_thumbnail_1936_0583__0001_.jpg)
Osram A.T.40 triode valve, 1921-1934
- maker:
- M-O Valve Company Limited
![Wireless valve, Osram A.T](https://coimages.sciencemuseumgroup.org.uk/63/801/small_thumbnail_1934_0477__0004_.jpg)
![Wireless valve, Osram A.T](https://coimages.sciencemuseumgroup.org.uk/63/799/small_thumbnail_1934_0477__0002_.jpg)
![Wireless valve, Osram A.T](https://coimages.sciencemuseumgroup.org.uk/63/798/small_thumbnail_1934_0477__0001_.jpg)
![Wireless valve, Osram A.T](https://coimages.sciencemuseumgroup.org.uk/63/802/small_thumbnail_1934_0477__0005_.jpg)
![Wireless valve, Osram A.T](https://coimages.sciencemuseumgroup.org.uk/63/800/small_thumbnail_1934_0477__0003_.jpg)
Osram A.T.40, 1921 wireless transmitting triode valve (filament broken), made by the M-O Valve Company Limited, England, 1921-1934
Details
- Category:
- Electronic Components
- Object Number:
- 1934-477
- Materials:
- glass and metal (unknown)
- type:
- thermionic valve
- credit:
- Donated by C E Largen