Metropolitan-Vickers Cosmos thermionic triode valve

Made:
1925 in England
maker:
Metropolitan-Vickers Electrical Company Limited
Metropolitan-Vickers Cosmos thermionic triode valve

Metropolitan-Vickers Cosmos thermionic triode valve
Science Museum Group
© The Board of Trustees of the Science Musuem

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