Raytheon type BA rectifier
date: label: date made
content: ca 1928
name: label: maker
content: Raytheon
notes: label: Description (Brief)
content: A 4-pin plastic base with long pins, dual element electrode mounted under a metal dome-cap. Tipped S-shaped envelope. Printed on base: "Raytheon / Type B-A"; printed on label: "Rayth[eon] / Type BA Pa[tent] / June 27, 1922 -- July / Other Patents Pen[ding] / Raytheon Mfg. Co. / Cambridge, Mass." Reference: 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 Susan Horle
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.314039
label: catalog number
content: 314039
label: accession number
content: 195337
objectType: label: Object Name
content: Electron 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