Duresite type 125 ballast resistance
date: label: date made
content: ca 1924
notes: label: Description (Brief)
content: A 4-pin plastic base. A S-type ductile tungsten wire filament with 6 upper and 5 lower molybdenum supports, angled Dumet leads, welded connectors. Tipless S-shaped envelope. Stamped on base: "Duresite / 1 125 Ballast / Wor[??]bestos Corp. / Made in U.S.A." Four dots molded on stem press
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.323301
label: catalog number
content: 323301
label: accession number
content: 241556
objectType: label: Object Name
content: Tube, Ballast
label: Object Name
content: ballast
label: Object Name
content: resistance
label: Other Terms
content: Tube, Ballast; Resistance
physicalDescription: label: Measurements
content: overall: 5 1/2 in x 2 1/4 in; 13.97 cm x 5.715 cm