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Marconi Radio Valve Type V24, by Marconi Company, English, Early 20th Century

preview image for Marconi Radio Valve Type V24, by Marconi Company, English, Early 20th Century
Inventory Number: 70906
Object Type:
Place Created: England United Kingdom Europe
Accession Number: 2004-9/304
Brief Description: Marconi Radio Valve Type V24, in thin glass envelope with caps at either ends, with grid and anode connections as envelope side pips, and single strand tungsten filament running entire length with a spring for tensioning. Construction was co-axial with helical wire grid surrounding filament and fitting within cylindrical anode. In this valve, 'U' shaped glass support holds two stout wire rods that attach to anode and grid respectively; thus electrodes are only supported at one end. Previously catalogued with assorted other valves.
Primary Inscriptions: "MARCONI'S W. T. CO. LTD. / MADE IN ENGLAND / COVERED BY VARIOUS PATENTS / 11295 V.24" printed on exterior surface of bulb.
Provenance: Presented by the Marconi Corporation.
Collection Group: Marconi Collection
Material(s): Glass
steel
assorted metals.
Dimensions:
Height Width Depth Diameter Unit
75 24 mm

Narratives

Image with multimedia irn 39721Image with multimedia irn 39722

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