Western Electric type VT1 vacuum triode
date: label: date made
content: ca 1917
name: label: maker
content: Western Electric
notes: label: Description (Brief)
content: A 4-pin brass base shell with plastic insulator, corrugated plates, tipped T-shaped envelope. Stamped on base: "Signal Corps / VT-1 / Western / Electric Co., Inc. / Pat. in U.S.A. / 1-15-1907 two patents / 2-18-08, 4-27-15 / 12-19-16 / Pat Applied for". Reference: Tyne, "Saga of the Vacuum Tube," pages 93-99; also https://www.radiomuseum.org/tubes/tube_vt-1.html.
label: Description (Brief)
content: Donor reported: "Western Electric receiving tube, "VT-1"; this was a standard military tube in World War I. This type was used by Hammond and Chaffee in the military equipment demonstrated in France in 1918. The general structure followed the lines of the McCandless type, [327504] except that grid and plate structures were on both sides of the
label: Description (Brief)
content: filament." [From list of material compiled by E.S. Purington, Feb. 28, 1966.]
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 Estate of John H. Hammond, Jr., thru The National Shawmut Bank of Boston
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.327505
label: catalog number
content: 327505
label: accession number
content: 266066
objectType: label: Object Name
content: vacuum tube
label: Object Name
content: triode
physicalDescription: label: Measurements
content: overall: 4 in x 1 1/4 in; 10.16 cm x 3.175 cm