Westinghouse "Mazda C" projection lamp
date: label: date made
content: ca 1940
notes: label: Description (Brief)
content: Westinghouse projection "Mazda C" lamp used at the Bureau of Standards around 1940. Brass mogul-screw base with collar, glass insulator. C-13 tungsten filament with 3 upper, 2 lower supports. Crimp connectors, dumet leads, gas-fill, foam(?) insulator in stem. Tipless T-shape envelope with taper at neck. "18" molded in one side of press, "18F" inked on other side, "Projection Mazda [Westinghouse logo] 500W 115V Burn Base Down" printed on top. "NBS 923" etched on envelope.
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: 1992.0342.30
label: accession number
content: 1992.0342
label: catalog number
content: 1992.0342.30
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: 5 3/4 in x 2 1/2 in; 14.605 cm x 6.35 cm