De Forest type HR "Oscillion" transmitting triode
date: label: date made
content: ca 1927
name: label: maker
content: De Forest Radio Telephone & Telegraph Co.
notes: label: Description (Brief)
content: De Forest type HR "Oscillion" transmitting triode, Bottom terminal has a copper lead that measures 3.875" long. Filament rated at 2.35 amperes on 10 volts. Anode rated at 250 milliamperes maximum on 250 volts. Reference: Tyne, "Saga of the Vacuum Tube," pages 301-303.
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.320902
label: catalog number
content: 320902
label: accession number
content: 241556
objectType: label: Object Name
content: triode
label: Object Name
content: vacuum tube
label: Other Terms
content: Electron Tubes
physicalDescription: label: Measurements
content: electron tube, triode: 16 cm x 8 cm; 6 5/16 in x 3 1/8 in
label: Measurements
content: overall: 6 in x 3 1/2 in x 2 1/4 in; 15.24 cm x 8.89 cm x 5.715 cm