M.T.9.F. dummy valve, 1920-1929

Made:
1920-1929 in Hammersmith
maker:
M-O Valve Company Limited

M.T.9.F. dummy valve, manufactured by the M-O Valve Company Limited, Hammersmith, London, England, 1920-1929

Details

Category:
Electronic Components
Object Number:
1929-396
Materials:
glass, plastic (unidentified) and metal (unknown)
type:
thermionic valve
credit:
Donated by the M.O. Valve Co. Ltd. (formerly Marconi-Osram Valve Co. Ltd.)