Raytheon / Air Ministry type VT127 beam tetrode tube
date: label: date made
content: ca 1945
name: label: maker
content: Raytheon Company
notes: label: Description (Brief)
content: Raytheon type VT.127 tetrode tube in original box. Plastic 7-pin base with center post and top contact. Getter stains on inner envelope wall. Stamped on tube: "Raytheon / VT.127 / 4-20 / Made in U.S.A. / 10E/231", stamped on other side "A [crown logo] M / 114". Marked on box: "British Type / VT 127 10E/231 / 4 20 / A [crown logo] M". Raytheon "A [crown logo] VT-127 10E/231 4-20" This is a screen grid tetrode, not a radar tube. Technical information at: http://www.tubecollector.org/vt127.htm; and http://www.r-type.org/exhib/aaa0299.htm - AM stands for "Air Ministry" (UK)
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.320987
label: catalog number
content: 320987
label: accession number
content: 241556
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: vacuum tube
label: Object Name
content: vacuum tube
label: Object Name
content: tetrode
label: Object Name
content: screen grid tetrode
physicalDescription: label: Measurements
content: overall: 5 in x 2 in; 12.7 cm x 5.08 cm