Duresite type 110 voltage regulator
notes: label: Description (Brief)
content: A ballast tube with a plastic 4-pin base, tungsten filament with 6 upper and 5 lower molybdenum supports, right-angled leads with soldered connectors, and tipless S-shaped envelope. In original box. Internal wire broken. Marked: "Duresite / No. 110 Ballast / World Bestos Corp. / Made in U.S.A.". Except for the base, the unit appears identical to a Mazda B incandescent lamp.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Franklin Wingard
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.322690
label: catalog number
content: 322690
label: accession number
content: 241556
objectType: label: Object Name
content: Ballast
label: Object Type
content: ballast
label: Other Terms
content: Ballast; Resistance
physicalDescription: label: Physical Description
content: cardboard (box material)
label: Measurements
content: tube: 5 5/8 in x 2 1/8 in; 14.2875 cm x 5.3975 cm
label: Measurements
content: overall: 6 1/2 in x 2 3/4 in x 2 3/4 in; 16.51 cm x 6.985 cm x 6.985 cm