Radio antenna switch
date: label: date made
content: ca 1920
notes: label: Description (Brief)
content: No extant maker's markings. Antenna switch with two 4.5" corrugated ceramic insulators mounted on a white-painted wooden block. This unit is effectively a single throw, double pole switch which permits switching two different antennas into the transmitter circuit. Binding posts are affixed to bakelite strips on top of the insulators and to copper supports on the base. A curved copper strip on one insulator serves to discharge any currents present on the throw switch as the switch is actuated.
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.321288
label: catalog number
content: 321288
label: accession number
content: 241556
objectType: label: Object Name
content: antenna component
label: Object Name
content: knife switch
physicalDescription: label: Measurements
content: overall: 9 1/2 in x 12 1/4 in x 5 1/2 in; 24.13 cm x 31.115 cm x 13.97 cm