Raytheon type 2-J-27 cavity magnetron
date: label: date made
content: ca 1943
name: label: maker
content: Raytheon Manufacturing Company
notes: label: Description (Brief)
content: A glass tube attached to a metal assembly. A metal tube with lead pin is attached perpendicular to the tube. Stamped: “Raytheon Mfg. Co. / Type / 2J27 / Made in U.S.A. / E7754.” Donor’s card reads: “Cavity magnetron made by the Raytheon Mfg. Co. for the US government during World War II for radar use. Fixed frequency type, 2965 to 2992 megacycles. Heater 6.3 volts at 1.5 amperes. Typical operation: 22000 volts at 30 amperes on the plate, 2400 field gauss, 1 microsecond pulse, 1000 pulses per second, for a peak pulsed power output of 275 kw.”
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.325223
label: catalog number
content: 325223
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: magnetron
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 6 1/8 in x 6 1/4 in x 3 1/4 in; 15.5575 cm x 15.875 cm x 8.255 cm