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Record Details

American-Type Radio Tube, USA, 20th Century

preview image for American-Type Radio Tube, USA, 20th Century
Inventory Number: 93609
Object Type:
Place Created: USA North America
Accession Number: 2004-9/378
Brief Description: American Radio Tube (or Valve) with large glass balloon, brass-plated white plastic? base and four brass base pins. Base slightly damaged and corroded. With small anode mounted vertically in interior of bulb. Possibly c. 1930s. Previously catalogued with assorted other valves.
Primary Inscriptions: "65 / 21 / 59" handwritten in ink on label stuck on exterior surface of bulb.
Provenance: Presented by the Marconi Corporation.
Collection Group: Marconi Collection
Material(s): Glass
assorted metals.
Height Width Depth Diameter Unit
110 45 mm

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Image with multimedia irn 40107Image with multimedia irn 40108

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