Edison Swan thermionic triode valve

Made:
1930 in England
Edison Swan thermionic triode valve

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

Edison Swan thermionic triode valve

AT 26

Details

Category:
Radio Communication
Object Number:
Y7001.807
Materials:
glass, plastic (unidentified) and metal (unknown)
Measurements:
overall: 96 mm 51 mm,
type:
thermionic valve and triode valve