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Marconi Radio Valve, by Marconiphone Company, English, 1920s/1930s

preview image for Marconi Radio Valve, by Marconiphone Company, English, 1920s/1930s
Inventory Number: 87176
Object Type:
Place Created: United Kingdom (England) Europe
Accession Number: 2004-9/343
Brief Description: Marconi Radio Valve in glass balloon envelope with partially silvered lower surface, probably from manufacturing process. With polished black plastic? base and six steel base pins. One base pin missing. Marconiphone Co. Ltd. was founded in December 1923 so valve can be dated post-1923.
Primary Inscriptions: "THE MARCONIPHONE CO LTD / MARCONI / B.V.A." printed on transfer attached to exterior surface of bulb.
Provenance: Presented by the Marconi Corporation.
Collection Group: Marconi Collection
Material(s): Glass
steel
plastic?
assorted metals.
Dimensions:
Height Width Depth Diameter Unit
110 50 mm

Narratives

Image with multimedia irn 39994Image with multimedia irn 39995

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