transmitter tank coil
date: label: date made
content: ca 1918
notes: label: Description (Brief)
content: No extant maker's markings. A final tank coil for an amateur radio transmitter. Fourteen turns of heavy gauge copper wire is wound on a wooden frame with a bakelite section insulating strip. The coil has a center coupling link consisting of four turns of the same gauge wire. Center coil diameter is 5 inches.
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.321563
label: catalog number
content: 321563
label: accession number
content: 241556
objectType: label: Object Name
content: radio coil
physicalDescription: label: Measurements
content: overall: 8 in x 7 in x 7 1/2 in; 20.32 cm x 17.78 cm x 19.05 cm