Mazda AC / P type vacuum tube
date: label: date made
content: 1928
name: label: Maker
content: Western Union Corporation
label: maker
content: British Thomson-Houston
notes: label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Western Union Corporation
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.333226
label: accession number
content: 294351
label: accession number
content: 294351
label: catalog number
content: 333226
objectType: label: Object Name
content: Tube, Electron
label: Object Name
content: vacuum tube
physicalDescription: label: Measurements
content: overall: 4 3/4 in x 2 1/4 in; 12.065 cm x 5.715 cm