Marconi Osram triode valve

Made:
circa 1920 in England
maker:
Marconi Osram Valve Company Limited
Marconi Osram triode valve

Marconi Osram triode valve
Science Museum Group
© The Board of Trustees of the Science Musuem

Marconi Osram triode valve

D.E.3 C856

Details

Category:
Radio Communication
Object Number:
Y7001.606.2
Materials:
glass and metal (unknown)
Measurements:
overall: 108 mm 32 mm,
type:
triode valve and thermionic valve