Thermionic triode valve

Thermionic triode valve

License this image for commercial use at Science and Society Picture Library

License

Science Museum Group
© The Board of Trustees of the Science Museum

Thermionic triode valve

Details

Category:
Radio Communication
Object Number:
Y7001.773
Materials:
glass and metal (unknown)
Measurements:
overall: 92 mm 40 mm,
type:
triode valve and thermionic valve