crystal radio signal detector
date: label: date made
content: ca 1915
notes: label: Description (Brief)
content: Marked: "DETECTOR". Double element crystal socket is mounted on a hard rubber base with binding posts and single wire cat's whisker adjusted by a double knob mechanism. Crystal element appears to be galena.
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.321900
label: catalog number
content: 321900
label: accession number
content: 241556
objectType: label: Object Name
content: radio receiver
label: Object Name
content: crystal radio
physicalDescription: label: Measurements
content: overall: 3 in x 3 1/2 in x 2 1/2 in; 7.62 cm x 8.89 cm x 6.35 cm