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Record Details 2

Marconi Radio Valve Type MH4, by Marconi Company, English, c. 1931

preview image for Marconi Radio Valve Type MH4, by Marconi Company, English, c. 1931
Inventory Number: 20104
Object Type:
Place Created: England United Kingdom Europe
Accession Number: 2004-9/364
Brief Description: Marconi Catkin Radio Valve Type MH4 with large copper cage around valve with polished black plastic? base and cap, and five steel base pins. Very unusual style of valve.
Primary Inscriptions: "MARCONI / MARCONI'S / WIRELESS TELEGRAPH CO LTD MWTCL [LOGO]" printed on sticker attached to lower exterior surface of cage. "PATENTED MADE IN ENGLAND" inscribed along top of exterior surface of cage. "MH4" inscribed along botton of exterior surface of cage.
Provenance: Presented by the Marconi Corporation.
Collection Group: Marconi Collection
Material(s): Copper
steel
plastic
Dimensions:
Height Width Depth Diameter Unit
115 35 mm

Narratives

Image with multimedia irn 35327Image with multimedia irn 35328

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