Fleming Valve, by Ediswan, London, c. 1905

Subject: Radio communication; Radio communication; Radio communication; Radio communication
Item type: Object
Makers: Ediswan
Provenance: Presented by the Marconi Corporation.
Primary inscriptions: '1936-282' in white ink on surface of glass
Physical material: Glass; assorted metals; brass.
Object type: Radio valve
Dimensions: Diameter: 23mm Height: 67mm Weight: 0.05kg
Inventory No: 21803
Accession Number: 2004-9/199

Description

Small Fleming Valve with brass Edison screw mounting. With vertically-held electrode assembly, and protruding stiff metal wire.