Raytheon type BA rectifier
date: label: date made
content: ca 1926
name: label: maker
content: Raytheon Manufacturing Co.
notes: label: Description (Brief)
content: A 4-pin base with brass shell and ceramic insulator, dual element electrode mounted under a metal dome-cap. Tipped S-shaped envelope. Printed on base: "Raytheon / Reg.U.S.Pat.Off. / Type BA 350 MA / Patented Feb 8, 1927 / Other Patents Pending / Raytheon MFG. Company / Cambridge Mass." https://www.radiomuseum.org/tubes/tube_ba.html.
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.323293
label: catalog number
content: 323293
label: accession number
content: 241556
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: vacuum tube
label: Object Name
content: rectifier
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 5 3/4 in x 2 3/8 in; 14.605 cm x 6.0325 cm