Spectrophotometer
name: label: maker
content: National Technical Laboratories
notes: label: Description
content: Arnold O. Beckman, a professor of chemistry at the California Institute of Technology, established National Technical Laboratories in Pasadena, Ca., in 1935. That firm introduced the DU spectrophotometer in 1941. Using quartz rather than ordinary glass, this instrument extended observations into the near ultra-violet. The formed proved successful, and remained on the market until 1976; during that time, thousands of examples were sold.
label: Description
content: This example came from Willson Products, a firm in Reading, Pa., that made such things as glasses and goggles. The inscription on top reads “BECKMAN QUARTZ SPECTROPHOTOMETER MANUFACTURED BY NATIONAL TECHNICAL LABORATORIES 820 MISSION ST. SOUTH PASADENA, CALIF. SERIAL NO. D-346.” An aluminum tag on the front reads “FROM ARTHUR H. THOMAS CO. PHILADELPHIA, U.S.A.” Since National Technical Laboratories became Beckman Instruments in 1950, this instrument dates from the 1940s.
label: Location
content: Currently not on view
place: label: place made
content: United States: California, Pasadena
setName: label: See more items in
content: Medicine and Science: Chemistry
creditLine: label: Credit Line
content: Gift of Willson Products, INCO Division
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1981.0420.1
label: catalog number
content: 1981.0420.01
label: accession number
content: 1981.0420
objectType: label: Object Name
content: Beckman DU Spectrophotometer
label: Object Name
content: spectrophotometer
physicalDescription: label: Measurements
content: overall: 22 cm x 77 cm x 26 cm; 8 11/16 in x 30 5/16 in x 10 1/4 in
label: Measurements
content: overall: 8 1/2 in x 30 1/4 in x 8 7/8 in; 21.59 cm x 76.835 cm x 22.5425 cm