Ribbon-Filament Pyrometer Lamp
date: label: date made
content: ca 1955
notes: label: Description (Brief)
content: General Electric ribbon-filament Pyrometer lamp used at the Bureau of Standards around 1955. Brass mogul-screw base with collar, glass insulator. R-8 tungsten filament (note expansion fold in filament) with welded connectors, dumet leads (multi-piece: stranded wire to collar to dumet to solid wire to fork which holds filament), support for leads inserted into stem. Tipless T-shape envelope with taper at neck. "NBS 60-19" handwritten on envelope, "Pyrometer Base Down [GE logo] 30A 6V Made in U.S.A." printed on top.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from the U. S. Department of Commerce, National Institute of Standards & Technology
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1992.0342.28
label: accession number
content: 1992.0342
label: catalog number
content: 1992.0342.28
objectType: label: Object Name
content: Light Bulb
label: Object Name
content: incandescent lamp
physicalDescription: label: Physical Description
content: tungsten (overall material)
label: Measurements
content: overall: 12 in x 3 1/8 in; 30.48 cm x 7.9375 cm