280A rectifier tube
date: label: date made
content: ca 1953
notes: label: Description (Brief)
content: A 4-pin plastic base with ceramic-insulated top contact, sinusoidal emitter, S-shaped envelope. Stamped on both sides of envelope: "280A". Reference: https://www.radiomuseum.org/tubes/tube_280a.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 Hallam E. Mendenhall
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1988.0695.39
label: catalog number
content: 1988.0695.39
label: accession number
content: 1988.0695
objectType: label: Object Name
content: Vacuum Tube/Rectifier
label: Object Name
content: vacuum tube
label: Object Name
content: rectifier
physicalDescription: label: Physical Description
content: manufactured (overall style)
label: Physical Description
content: molded (overall production method/technique)
label: Measurements
content: overall: 5 in x 1 5/8 in; 12.7 cm x 4.1275 cm