McCullough / Kellogg type 402 vacuum triode
date: label: date made
content: ca 1926
name: label: maker
content: Kellogg Switchboard and Supply Company
notes: label: Description (Brief)
content: A 4-pin plastic base with 2-contact top cap, silvered, tapered envelope. Base stamped: "Kellogg / Type - 402 / A-C tube". Shaw stamping on bottom of base. Reference: https://www.radiomuseum.org/tubes/tube_402.html.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: ZZ.RSN79705N15
objectType: label: Object Name
content: triode
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: electron tube: 5 3/8 in x 1 5/8 in; 13.6525 cm x 4.1275 cm