Western Electric type 230D vacuum triode
date: label: date made
content: ca 1927
name: label: maker
content: Western Electric
notes: label: Description (Brief)
content: Plastic base with four contacts. T-shaped envelope. Introduced in 1925, this triode used a low-power filament in the same applications as the UV199. Reference: Tyne, "Saga of the Vacuum Tube," pages 295-297.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Franklin Wingard
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.320921
label: catalog number
content: 320921
label: accession number
content: 241556
objectType: label: Object Name
content: triode
label: Object Name
content: vacuum tube
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 3 1/4 in x 1 in; 8.255 cm x 2.54 cm