Raytheon type BH full-wave cold-cathode rectifier
date: label: date made
content: ca 1927
name: label: maker
content: Raytheon Manufacturing Co.
notes: label: Description (Brief)
content: A 4-pin plastic base with S-shaped envelope. Stamped on base: “Raytheon / B-H”. Cold-cathode-rectifier for power-supply, about 1930. First advertised in October 1926 on Radio News.
label: Description (Brief)
content: Reference: https://www.radiomuseum.org/tubes/tube_bh.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 Paul G. Watson
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.252994.002
label: accession number
content: 252994
label: catalog number
content: 252994.002
objectType: label: Object Name
content: rectifier
label: Object Name
content: full-wave cold-cathode rectifier
label: Other Terms
content: rectifier; Electron Tubes
physicalDescription: label: Measurements
content: overall: 4 in x 1 3/4 in; 10.16 cm x 4.445 cm