Signal loose coupler receiving transformer
date: label: date made
content: ca 1915
name: label: maker
content: Signal Electric Manufacturing Company
notes: label: Description (Brief)
content: Marked: "Signal". A standard radio receiving variable inductance coil or "loose coupler" of the World War I type. A fixed primary coil with slider is mounted on a wooden base. Secondary coil slides axially into the primary to provide tuning. Rotary switch on secondary adjusts inductance.
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.321391
label: accession number
content: 241556
label: catalog number
content: 321391
objectType: label: Object Name
content: radio coupler
label: Object Name
content: variable inductance
physicalDescription: label: Measurements
content: overall: 4 3/4 in x 12 in x 3 5/8 in; 12.065 cm x 30.48 cm x 9.2075 cm