NBS modulator triode
date: label: Date made
content: 1915
label: associated date
content: 1915
name: label: transfer
content: Bureau of Standards
label: maker
content: Western Electric
label: maker
content: Western Electric
notes: label: Description (Brief)
content: For transatlantic radio experiment. Patent dates: 15 January 1907 (2), 18 February 1908, 27 April 1915. A 4-pin bayonet base with plastic shell. Tipped, T-shaped glass envelope. Bureau of Standards property number: "R-1976". Set in a plastic surface-mounted socket.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from the United States Bureau of Standards, Dept. of Commerce
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.320220
label: catalog number
content: 320220
label: accession number
content: 188571
objectType: label: Object Name
content: electron tube
label: Object Name
content: triode
label: Other Terms
content: Electron Tube, Triode; Electron Tubes
physicalDescription: label: Measurements
content: overall: 13 in x 3 1/2 in x 3 1/2 in; 33.02 cm x 8.89 cm x 8.89 cm
label: Measurements
content: tube: 10 1/2 in x 2 5/8 in; 26.67 cm x 6.6675 cm
label: Measurements
content: socket: 5 5/8 in x 3 9/16 in x 3 9/16 in; 14.2875 cm x 9.04875 cm x 9.04875 cm