RCA triode, unknown type
date: label: date made
content: ca 1925
name: label: maker
content: Radio Corporation of America
notes: label: Description (Brief)
content: A plastic 4-pin base with long pins. Tipless T-shaped envelope. Getter stain on inner wall. Molded on bottom: "RCA / Licensed only to extent / indicated on carton." Inked on press: "39[W?]3". No other extant markings. Appears similar to UV199 type tubes, except for a somewhat smaller, smooth anode.
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.323166
label: catalog number
content: 323166
label: accession number
content: 241556
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: vacuum tube
label: Object Name
content: triode
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 3 3/4 in x 1 1/8 in; 9.525 cm x 2.8575 cm