Marconiphone thermionic triode valve

Made:
1942 in England
maker:
Marconiphone Company Limited
Marconiphone thermionic triode valve

Marconiphone thermionic triode valve
Science Museum Group
© The Board of Trustees of the Science Musuem

Marconiphone thermionic triode valve

MHL4

Details

Category:
Radio Communication
Object Number:
Y7001.808
Materials:
glass, metal (unknown) and plastic (unidentified)
Measurements:
overall: 109 mm 42 mm,
type:
thermionic valve and triode valve