De Forest "Audion" radio tube
date: label: date made
content: ca 1914
name: label: maker
content: De Forest Radio Telephone & Telegraph Co.
notes: label: Description (Brief)
content: An Audion triode with single filament and grid, no plate. Reference: Tyne, "Saga of the Vacuum Tube," pages 52-72.
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.320913
label: catalog number
content: 320913
label: accession number
content: 241556
objectType: label: Object Name
content: triode
physicalDescription: label: Measurements
content: overall: 3 1/4 in x 1 1/2 in; 8.255 cm x 3.81 cm