General Radio type 561-D vacuum tube bridge
name: label: maker
content: General Radio Company
notes: label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.320132
label: catalog number
content: 320132
label: accession number
content: 243908
objectType: label: Object Name
content: Bridge, Vacuum Tube
label: Object Name
content: vacuum tube bridge
label: Other Terms
content: Bridge, Vacuum Tube; Measuring Devices
physicalDescription: label: Measurements
content: overall: 11 in x 20 in x 20 in; 27.94 cm x 50.8 cm x 50.8 cm