Kolster exhibit #8: tuner and amplifier for radio direction finder
date: label: date made
content: 1918
label: associated date
content: 1930
name: label: associated user
content: unknown
label: associated institution
content: Bureau of Standards
notes: label: Description (Brief)
content: "Mahogany box 16" X 7.75" X 5.5". Two handles, for tuning, protrude 3" from black panel, includes 11 binding posts, 1 socket." NBS #R-1991. This unit was used in Interference #50,805, Greenleaf W. Pickard vs. Frederick Kolster, and is referred to on pages 56-57 of the "Record and Testimony on Behalf of Frederick A. Kolster." The case was heard in 1929 and involves Kolster's US Patent 1447165.
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 United States Bureau of Standards, Dept. of Commerce
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.313515
label: catalog number
content: 313515
label: accession number
content: 188571
label: collector/donor number
content: R-1991
objectType: label: Object Name
content: Receiver
label: Object Name
content: radio receiver
label: Other Terms
content: Receiver; Radio
physicalDescription: label: Measurements
content: overall: 16 in x 7 3/4 in x 5 1/2 in; 40.64 cm x 19.685 cm x 13.97 cm