De Forest spherical "Audion" radio tube
date: label: date made
content: ca 1910
label: date made
content: ca 1958
label: date made
content: ca 1965
name: label: maker
content: De Forest, Lee
notes: label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Anita Danko
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1998.0191.16
label: accession number
content: 1998.0191
label: catalog number
content: 1998.0191.16
objectType: label: Object Name
content: triode
label: Object Name
content: tube socket
label: Object Name
content: transistor
label: Object Name
content: integrated circuit
label: Object Name
content: vacuum tube
physicalDescription: label: Measurements
content: .01: 3 1/2 in x 2 in; 8.89 cm x 5.08 cm
label: Measurements
content: .02: 1 in x 1 3/8 in; 2.54 cm x 3.4925 cm
label: Measurements
content: .03: 3/4 in x 1/4 in; 1.905 cm x .635 cm
label: Measurements
content: .04: 1/2 in x 3/8 in; 1.27 cm x .9525 cm