Sylvania type 6U5 electron ray tube
name: label: maker
content: Sylvania Electric Products Inc.
notes: label: Description (Brief)
content: A small cathode ray tube used to assist in accurate radio tuning. A 6-pin plastic base with T-shaped envelope. Stamped: "6U5 / E2M" and "Sylvania / Made in U.S.A" Donor’s card reads: “Electron ray tube made by the Sylvania Corporation. Glass type. Used to indicate visually by means of a fluorescent screen (target) the effects of a change in controlling voltage. Used as a convenient non-mechanical means of indicating the accurate tuning of a radio receiver. Heater type: 6.3 volts at .3 ampere. Triode grid voltage for 0 shadow angle is -18.5 volts, for a 90 degree shadow angle grid volts, both with 200 volts on the plate and target.” See also: https://www.radiomuseum.org/tubes/tube_6u5~2.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.325104
label: catalog number
content: 325104
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: magic eye tube
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 4 in x 1 1/4 in; 10.16 cm x 3.175 cm