McCullough / Kellogg type 403 triode
date: label: date made
content: ca 1927
name: label: maker
content: Kellogg Switchboard and Supply Company
notes: label: Description (Brief)
content: A 4-pin plastic base with two-pin plastic top contact. T-shaped envelope. Stamped on base: "[Kellogg logo] / 403". Reference: https://www.radiomuseum.org/tubes/tube_403.html.
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.323106
label: catalog number
content: 323106
label: accession number
content: 241556
objectType: label: Object Name
content: Electron Tube, Triode
label: Object Name
content: triode
label: Other Terms
content: Electron Tube, Triode; Electron Tubes
physicalDescription: label: Measurements
content: overall: 5 1/2 in x 1 1/2 in; 13.97 cm x 3.81 cm