Cunningham CX-330 radio tube
date: label: date made
content: 1930
name: label: maker
content: E. T. Cunningham, Inc.
notes: label: Description (Brief)
content: A plastic 4-pin base with tipless T-shaped envelope. Cunningham stamping on base. Donor card reads: "Made for the Radio Corporation of America in 1930 for use in home broadcast receivers operated from dry-cells. Oxide coated filament, 2 volts at .06 ampere. A general purpose tube with a standard 4 long pin base for use as an amplifier or a detector. An improvement over the WD-11 and WD-12 tubes, but not so satisfactory as the UV-199 tube. Lasted only a short while. Made by General Electric Company."
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Paul G. Watson
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.324368
label: catalog number
content: 324368
label: accession number
content: 252994
objectType: label: Object Name
content: triode
label: Object Name
content: electron tube
label: Object Name
content: electron tube
physicalDescription: label: Measurements
content: overall: 4 in x 1 1/4 in; 10.16 cm x 3.175 cm