De Forest tubular "AudioTron" radio tube
name: label: maker
content: De Forest Radio Telephone & Telegraph Co.
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 Marshall N. Waterman, Frances Waterman and Ruth Waterman Ritch
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.313473
label: catalog number
content: 313473
label: accession number
content: 187068
objectType: label: Object Name
content: triode
physicalDescription: label: Measurements
content: tube only: 3 1/2 in x 7/8 in; 8.89 cm x 2.2225 cm
label: Measurements
content: with leads: 4 1/4 in x 7/8 in; 10.795 cm x 2.2225 cm