Raytheon type B full-wave rectifier
date: label: date made
content: 1928
name: label: maker
content: Raytheon Company
notes: label: Description (Brief)
content: Helium-filled full-wave rectifier. A 4-pin base with brass shell and ceramic insulator. Tipped S-shaped envelope. Serial number "5144". Two ceramic-covered cylinders are set side by side on top the stem press. A metal top hat is mounted above the cylinders with metal tines that are attached to the stem below the press. Donor's card reads: "Full wave rectifier made by the Eveready Raytheon Company in 1928. A full wave gaseous type rectifier without filament or heater. Used in B battery eliminators and later in receivers operated directly from AC power sources. Of somewhat limited current capacity, this original design was replaced by the type BH design." See also: https://www.radiomuseum.org/tubes/tube_b_raytheon.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.324412
label: catalog number
content: 324412
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube, Diode
label: Object Name
content: diode
label: Object Name
content: rectifier
label: Other Terms
content: Electron Tube, Diode; Electron Tubes
physicalDescription: label: Measurements
content: overall: 4 1/4 in x 1 3/4 in; 10.795 cm x 4.445 cm