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Record Details

Marconi Radio Valve Type MH4, by Marconi Company, London, 1930s

preview image for Marconi Radio Valve Type MH4, by Marconi Company, London, 1930s
Inventory Number: 24996
Object Type:
Place Created: London United Kingdom (England) Europe
Accession Number: 2004-9/369
Brief Description: Marconi Amplifier Triode Radio Valve (or Tube) Type MH4 with partially blackened glass balloon, probably due to use. With polished black plastic? base and five nickel-plated steel base pins.
Primary Inscriptions: "MADE IN ENGLAND / MH4 / PATENTED" printed on top of exterior surface of bulb. "Marconi / Valve / B.V.A." printed on label stuck on exterior surface of bulb. "MOV" printed on underside of base.
Provenance: Presented by the Marconi Corporation.
Collection Group: Marconi Collection
Material(s): Glass
plastic?
nickel
steel
assorted metals.
Dimensions:
Height Width Depth Diameter Unit
130 55 mm

Narratives

Image with multimedia irn 35418Image with multimedia irn 35419

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