Cunningham type C301A vacuum triode
date: label: date made
content: ca 1930
name: label: maker
content: E. T. Cunningham, Inc.
notes: label: Description (Brief)
content: A 4-pin plastic base with S-shaped silvered envelope. Stamped on base: "Cunningham / C-301-A / Licensed only / to extent / indicated on carton". Paper label reads: "Tested for oscillation, filament and / general conditions / Tested perfect [blank] / Manufacturer reserves right of examining / defective tubes before replacing / Walthal Electric Co., Inc. / 61 Cortlandt St., New York". Reference: https://www.radiomuseum.org/tubes/tube_c301a.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 Henry Wirth
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.312384
label: catalog number
content: 312384
label: accession number
content: 163277
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: vacuum tube
label: Object Name
content: triode
physicalDescription: label: Measurements
content: overall: 4 1/8 in x 1 5/8 in; 10.4775 cm x 4.1275 cm