radio spark coil
date: label: date made
content: ca 1912
notes: label: Description (Brief)
content: No extant maker's marks. A radio spark coil. Wooden base, copper wire wrapped on a plastic core with two binding posts on top. Interrupter on one end. Three position sweep switch and two additional binding posts mounted on base.
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.320838
label: accession number
content: 241556
label: catalog number
content: 320838
objectType: label: Object Name
content: spark coil
physicalDescription: label: Measurements
content: overall: 3 in x 4 in x 2 in; 7.62 cm x 10.16 cm x 5.08 cm