Henninger "Aero Coil" inductance coils in box
date: label: date made
content: ca 1925
notes: label: Description (Brief)
content: Marked on box: "Henninger / Aero Coil / The Complete / Low Loss / Inductance System / Henninger Radio Mfg., Co. / Chicago". Three barrel-type radio frequency coils with fixed links on each coil form. In original box. Six mounting brackets in box. See US patent 1551392, construction for inductances, issued 25 August 1925 to Andrew F. Henninger, Jr. Aero Products Company succeeded Henniger Co. around this time.
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.321509
label: accession number
content: 241556
label: catalog number
content: 321509
objectType: label: Object Name
content: radio coil
physicalDescription: label: Measurements
content: each coil: 3 in x 3 1/8 in; 7.62 cm x 7.9375 cm