loose coupler for wireless receiver
date: label: date made
content: 1917
notes: label: Description (Brief)
content: No extant maker's marking. Specimen is a two-circuit coupler consisting of a fixed primary with two multipoint switches, and a variable secondary with a spring-drive multipoint switch. Binding posts are affixed to the hard rubber panel. Wooden base is badly chipped. Unit is of the Navy type, and sold for $24.00. Similar to Wireless Shop unit seen on Clymer-Greenwood, page 36.
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.321201
label: accession number
content: 241556
label: catalog number
content: 321201
objectType: label: Object Name
content: radio frequency coupler
physicalDescription: label: Measurements
content: overall: 6 1/2 in x 18 in x 6 in; 16.51 cm x 45.72 cm x 15.24 cm