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Fleming Valve, by Ediswan, London, c. 1905

Inventory Number 67162

Acknowledgement: © History of Science Museum, University of Oxford, inv.67162

Item type
Object
Makers
Ediswan
Provenance
Presented by the Marconi Corporation.
Primary inscriptions
C10 handwritten on base
Object type
Radio valve
Dimensions
Height: 115mm Width: 40mm Depth: 30mm Weight: 0.05kg
Inventory No
67162
Accession Number
2004-9/187

Description

Fleming Valve, made in cylindrical form with copper gauze covering and bayonet fitting, with brass base. Purpose of copper gauze was to protect valve from any external electrical fields. Previously catalogued with 4 Volt Fleming Valve (Inv. Num. 93660).

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