National Union type 6AB5 / 6N5 “magic eye” tube
date: label: date made
content: ca 1937
name: label: maker
content: National Union Radio Corp.
notes: label: Description (Brief)
content: A 6-pin plastic base with T-shaped envelope. Stamped: “Made / in / U.S.A. / National Union”. Donor’s card reads: “Electron ray tube made by the National Union Radio Company, Orange, NJ. Glass type used to indicate the effect 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 .15 ampere.” See also: https://www.radiomuseum.org/tubes/tube_6ab5.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.325099
label: catalog number
content: 325099
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: 4 in x 1 1/4 in; 10.16 cm x 3.175 cm