History of Science Museum: Collection Database Search

Record Details

Osram Radio Valve Type CM8, by Osram Company, English, 20th Century

preview image for Osram Radio Valve Type CM8, by Osram Company, English, 20th Century
Inventory Number: 79293
Object Type:
Place Created: England United Kingdom Europe
Accession Number: 2004-9/349
Brief Description: Osram Photo Cell Radio Valve Type CM8, in vertical glass envelope, with polished black bakelite? base. With four steel base pins and single steel top cap.
Primary Inscriptions: "G.E.C. LTD / TYPE C.M.8. / OSRAM / PHOTO CELL / MADE IN ENGLAND / 9662" printed on exterior surface of bulb.
Provenance: Presented by the Marconi Corporation.
Collection Group: Marconi Collection
Material(s): Glass
steel
Bakelite?
assorted metals.
Dimensions:
Height Width Depth Diameter Unit
120 35 mm

There are no associated narratives.

Image with multimedia irn 39880Image with multimedia irn 39881

Permalink: http://www.mhs.ox.ac.uk/object/inv/79293