Raytheon type 2-J-39 cavity magnetron
date: label: date made
content: ca 1942
name: label: maker
content: Raytheon Manufacturing Company
notes: label: Description (Brief)
content: A half-circle magnet on which is mounted a radiating assembly. Two contacts on the bottom and a metal connection set perpendicular to the assembly. Stamped: "SC / 795 / A"; "Raytheon / Made in U.S.A."; and "CAUTION - Magnet / Keep 2" away from / steel, iron or magnets". Donor’s card reads: “Cavity magnetron made by the Raytheon Mfg. Co. for the US government during World War II. Complete with permanent magnet, this tube operated within the frequency range of 3267 to 3333 megacycles under pulse conditions. Heater: 6.3 volts at 1.75 amperes, duty cycle .002, 5400 volts on the anode. Peak power output 817 kw. Serial number: D-3062.”
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.324537
label: catalog number
content: 324537
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube, Diode
label: Object Name
content: magnetron
label: Other Terms
content: Electron Tube, Diode; Electron Tubes
physicalDescription: label: Measurements
content: overall: 4 3/4 in x 3 1/4 in x 4 in; 12.065 cm x 8.255 cm x 10.16 cm