Ediswan thermionic triode valve

Made:
1928 in England
Ediswan thermionic triode valve

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

Ediswan thermionic triode valve VT 13C

Details

Category:
Radio Communication
Object Number:
Y7001.1070
Materials:
glass, metal (unknown) and bakelite
Measurements:
overall: 102 mm x 56 mm x 56 mm,
type:
thermionic valve and triode valve