Metropolitan-Vickers Cosmos thermionic triode valve
Metropolitan-Vickers Cosmos thermionic triode valve DE50
Details
- Category:
- Radio Communication
- Object Number:
- Y7001.904
- Materials:
- glass, metal (unknown) and bakelite
- Measurements:
-
overall: 117 mm 47 mm,
- type:
- thermionic valve and triode valve