Rectifying valve type M.R.4

Rectifying valve type M.R.4

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Rectifying valve type M.R.4
Science Museum Group
© The Board of Trustees of the Science Museum

Rectifying valve type M.R.4

Details

Category:
Electronic Components
Object Number:
1922-436
type:
valve
credit:
M.O. Valve Co. Ltd. (formerly Marconi-Osram Valve Co. Ltd.)