British Thomson-Houston thermionic triode valve

Made:
1924 in England
maker:
British Thomson-Houston Company Limited
British Thomson-Houston thermionic triode valve

British Thomson-Houston thermionic triode valve
Science Museum Group
© The Board of Trustees of the Science Musuem

British Thomson-Houston thermionic triode valve

LL4

Details

Category:
Radio Communication
Object Number:
Y7001.678
Materials:
glass and metal (unknown)
Measurements:
overall: 108 mm 43 mm,
type:
triode valve and thermionic valve