Marconi Wireless Telegraph thermionic triode valve

Made:
1918 in England
Marconi Wireless Telegraph thermionic triode valve

Marconi Wireless Telegraph thermionic triode valve
Science Museum Group
© The Board of Trustees of the Science Musuem

Marconi Wireless Telegraph thermionic triode valve.

2V-PIF

Details

Category:
Radio Communication
Object Number:
Y7001.876
Materials:
glass and metal (unknown)
Measurements:
overall: 164 mm 50 mm,
type:
thermionic valve and triode valve