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Record Details

Radio Valve R5V, by Marconi Osram Valve Co., London, c. 1923

Inventory Number: 30209
Object Type:
Place Created: London England United Kingdom Europe
Accession Number:
Brief Description: Dull emitter R5V, pipped, by Osram for Marconi, with nickel base. Fitted into V2A receiver.
Primary Inscriptions: Signed: "Osram" and BBC stamp.
Provenance: Not ascertained.
Collection Group:
Material(s): Glass and nickel


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