unidentified miniature vacuum tube
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from the United States Bureau of Standards, Dept. of Commerce
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.320184
label: catalog number
content: 320184
label: accession number
content: 188571
objectType: label: Object Name
content: vacuum tube