cathode ray tube
notes: label: Description (Brief)
content: Marked: "3611, Pat. in USA, 3-20-7; 10-8-20; 4-22-24; 6-16-25". Early cathode ray tube with horizontal and vertical deflection plates. Plates are connected directly to filament stem which is cracked making the arrangement unstable. Phosphorescent screen. Shaw-type base with four prongs.
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.323794
label: catalog number
content: 323794
label: accession number
content: 249200
objectType: label: Object Name
content: discharge tube
label: Object Name
content: cathode ray tube
physicalDescription: label: Measurements
content: overall: 13 in x 4 1/2 in x 8 in; 33.02 cm x 11.43 cm x 20.32 cm