De Forest type DV5 "Audion" triode
date: label: date made
content: ca 1924
name: label: maker
content: De Forest Radio Telephone & Telegraph Co.
notes: label: Description (Brief)
content: De Forest type DV5 "Audion" radio tube. Ceramic base with 4-pins and maker stamp, tipped T-shaped glass envelope with paper test label. Donor’s card reads: “Triode made by De Forest in 1923 to 1925. A high Mu tube for use as a resistance coupled amplifier in battery operated home broadcast receivers. Filament: 5 volts at .25 ampere.”
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Paul G. Watson
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.324435
label: catalog number
content: 324435
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube, Triode
label: Object Name
content: triode
label: Other Terms
content: Electron Tube, Triode; Electron Tubes
physicalDescription: label: Measurements
content: overall: 4 1/4 in x 1 3/8 in; 10.795 cm x 3.4925 cm