RCA / USN type 902 CRT
date: label: date made
content: ca 1936
name: label: maker
content: Radio Corporation of America
notes: label: Description (Brief)
content: An 8-pin plastic base with center post, glass bell, aquadag coating. Stamped on Envelope: “902”; US Navy logo stamped on base. Donor’s card reads: “Cathode ray tube made by the Radio Corporation of America before 1938. Two inch electrostatic deflection for oscilloscope use, high vacuum, low voltage type. #1 phosphorescence. Heater: 6.3 volts at .6 ampere. 600 volts on anode #2, Anode #1 175 volts (focusing electrode), negative grid bias for cutoff 80 volts.” See also: https://www.radiomuseum.org/tubes/tube_902.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.325050
label: catalog number
content: 325050
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: cathode ray tube
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 7 1/2 in x 2 in; 19.05 cm x 5.08 cm