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Record Details

Mullard Radio Valve Type 2D4A, by Mullard, Britain. Mid 1930s

preview image for Mullard Radio Valve Type 2D4A, by Mullard, Britain. Mid 1930s
Inventory Number: 83305
Object Type:
Place Created: United Kingdom Europe
Accession Number: 2004-9/351
Brief Description: Mullard Radio Valve Type 2D4A in gold-painted vertical glass envelope. Upon polished black plastic? base with five steel base pins. With BVA (British Radio Valve Manufacturers Association) stamp on painted surface.
Primary Inscriptions: "BVA [LOGO] / PROTECTED / BY PATENTS / Mullard / 2D4A / 3D8 / Y" printed on exterior painted surface of bulb. "498 2" printed on exterior surface of base.
Provenance: Presented by the Marconi Corporation.
Collection Group: Marconi Collection
Material(s): Glass
plastic?
steel
assorted metals.
Dimensions:
Height Width Depth Diameter Unit
90 30 mm

Narratives

Image with multimedia irn 39939Image with multimedia irn 39940

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