McVitie Weston valve collection, Mullard ORA valve

Made:: 1923

maker:: Mullard Limited

Mullard ORA valve, reversed spiral grid formation

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Mullard ORA valve, reversed spiral grid formation
Science Museum Group
© The Board of Trustees of the Science Museum

Mullard ORA valve, reversed spiral grid formation, filament broken, (RMW/B115A - McVitie Weston number), by Mullard Limited, 1923.

Details

Category:: Electronic Components

Object Number:: 1972-141/364

type:: valve

credit:: STC plc

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McVitie Weston valve collection, Mullard ORA valve

Details

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