ERLA "Duo-Reflex" radio frequency transformer
date: label: date made
content: ca 1925
notes: label: Description (Brief)
content: Manufacture: Electrical Research Laboratories. Plate reads: "Radio Frequency Transformer / ERLA / Type Duo-Reflex / Wavelength 200-700 / Pat. Appld. For / Electrical Research / Laboratories, Chicago". A coil designed for radio frequency circuits in reflex receivers. Bakelite base with four binding posts for external circuit connections. Reference: Clymer-Greenwood, page165.
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.321848
label: catalog number
content: 321848
label: accession number
content: 241556
objectType: label: Object Name
content: transformer
physicalDescription: label: Measurements
content: overall: 1 3/4 in x 1 7/8 in x 3 in; 4.445 cm x 4.7625 cm x 7.62 cm