Brooklyn Metal "Tri-Coil" radio frequency transformer
date: label: date made
content: 1924
name: label: maker
content: RCA Corporation
notes: label: Description (Brief)
content: Brooklyn Metal "Tri-Coil" radio frequency transformer in original box with instruction sheet. Marked: "Tri-Coil / Radio Frequency / Transformer / Radio Apparatus Division / of Brooklyn Metal / Stamping Co. Brooklyn / N.Y." A standard radio frequency transformer for a TRF (tuned radio frequency) receiver. Metal housing with four binding posts on top. The manufacturer claims that a "compensating" coil gives the unit a broad range for amplifying all broadcast wavelengths.
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.321632
label: accession number
content: 241556
label: catalog number
content: 321632
objectType: label: Object Name
content: transformer
label: Object Name
content: condenser
physicalDescription: label: Measurements
content: box: 2 1/2 in x 2 1/2 in x 2 1/2 in; 6.35 cm x 6.35 cm x 6.35 cm
label: Measurements
content: transformer: 2 1/4 in x 2 1/4 in; 5.715 cm x 5.715 cm