![](https://coimages.sciencemuseumgroup.org.uk/55/897/large_thumbnail_1959_0212__0001_.jpg)
![Marconi Osram thermionic triode valve](https://coimages.sciencemuseumgroup.org.uk/475/480/medium_smg00243950.jpg)
Marconi thermionic triode valve
V.T. No. 3
Details
- Category:
- Radio Communication
- Object Number:
- Y7001.809
- Materials:
- metal (unknown) and glass
- Measurements:
-
overall: 101 mm 49 mm,
- type:
- triode valve and thermionic valve