Duck transmitting helix coil for radio
date: label: date made
content: ca 1920
name: label: maker
content: William B. Duck Company
notes: label: Description (Brief)
content: Duck transmitting helix coil for radio. This tuning coil is designed to operate in the general vicinity of 200 meters. The secondary consists of twelve turns of No. 8 aluminum wire, and the primary of seven turns of No. 4 aluminum wire. Unit sold for $15 in 1920. Reference: William Duck Co. catalog, #14 (1920), page 19.
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.320861
label: catalog number
content: 320861
label: accession number
content: 241556
objectType: label: Object Name
content: Coil, Coupling
label: Object Name
content: radio coil
physicalDescription: label: Measurements
content: overall: 17 in x 10 1/4 in; 43.18 cm x 26.035 cm