Kayless x-ray tube
date: label: date made
content: ca 1916
notes: label: Description (Brief)
content: Concave cathode and disc anode. Platinum center target encased in copper jacket. Target marked: "Kayess Product / Pat. Sep. 5, '11, Dec. 30, '13 / June 23, '14, Nov. 30, '15 / 59184".
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Columbia University, Department of Physics, thru Alvin P. Tramm
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.323797
label: catalog number
content: 323797
label: accession number
content: 249200
objectType: label: Object Name
content: discharge tube
label: Object Name
content: X-ray tube
label: Object Name
content: x-ray tube
physicalDescription: label: Measurements
content: overall: 7 3/4 in x 20 in x 4 1/2 in; 19.685 cm x 50.8 cm x 11.43 cm