RCA type 5-FP-7 cathode ray tube
date: label: date made
content: ca 1943
name: label: maker
content: Radio Corporation of America
notes: label: Description (Brief)
content: An 8-pin plastic base with contact on the side near the top, and 5” phosphored glass bell. Stamped on base: “[RCA logo] / Made in U.S.A.”, on envelope: “5FP7”.Donor’s card reads: “Cathode ray tube made by the Radio Corporation of America for the US government during World War II. A picture tube with magnetic focus and deflection for radar and oscillograph applications requiring long persistence. Heater type: 6.3 volts at .6 ampere. Deflection angle 53 degrees, anode voltage 5000, grid #2 250 volts, grid #1 25 to 70 volts negative, focus coil current 97 milliamperes.” See also: https://www.radiomuseum.org/tubes/tube_5fp7.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.324774
label: catalog number
content: 324774
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: 10 3/4 in x 5 in; 27.305 cm x 12.7 cm