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Record Details

4 Volt Fleming Valve, by Royal Ediswan, London, c. 1905

preview image for 4 Volt Fleming Valve, by Royal Ediswan, London, c. 1905
Inventory Number: 67148
Object Type:
Place Created: London England United Kingdom Europe
Accession Number: 2004-9/579
Brief Description: 4 Volt Fleming Valve, in polished teak? gallows mounting. With ebonite panel and metal alloy terminal upon upper surface of gallows. With two metal alloy terminals upon upper surface of base. Bulb has vertically-mounted nickel anode and other metal components. Previously catalogued with other, similar 12 Volt Fleming Valve (Inv. Num. 89342)
Primary Inscriptions: "Royal Ediswan" printed on exterior surface of bulb.
Provenance: Presented by the Marconi Corporation.
Collection Group: Marconi Collection
Material(s): Teak?
glass
ebonite
metal alloy
nickel
assorted metals.
Dimensions:
Height Width Depth Diameter Unit
120 100 103 mm

Narratives

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