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Record Details

Balloon Envelope Radio Valve, 20th Century

preview image for Balloon Envelope Radio Valve, 20th Century
Inventory Number: 92020
Object Type:
Accession Number: 2004-9/335
Brief Description: Radio Valve (or Tube) with partially darkened iridescent glass balloon envelope, polished black Bakelite base and four steel base pins.
Provenance: Presented by the Marconi Corporation.
Collection Group: Marconi Collection
Material(s): Glass
steel
bakelite
assorted metals.
Dimensions:
Height Width Depth Diameter Unit
115 60 mm

There are no associated narratives.

Image with multimedia irn 40081Image with multimedia irn 40082

Permalink: http://www.mhs.ox.ac.uk/object/inv/92020