Amperite type 7-H-12 tube
name: label: maker
content: Amperite
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: ZZ.RSN79838U08
objectType: label: Object Name
content: Ballast Tube
label: Other Terms
content: Ballast Tube; Resistance
physicalDescription: label: Physical Description
content: composition (overall material)
label: Physical Description
content: glass (overall material)
label: Physical Description
content: metal (overall material)
label: Measurements
content: ballast tube: 12 cm x 5 cm; 4 3/4 in x 1 15/16 in