Federal type 57 radio receiver
date: label: date made
content: ca 1922
name: label: maker
content: Federal
label: maker
content: Federal Telephone & Telegraph Co.
notes: label: Description (Brief)
content: Marked: "Federal Telephone & Telegraph Co." / Buffalo, N.Y., U.S.A. / Type 57". Specimen is a TRF (tuned radio frequency) receiver with single RF stage, detector stage and two audio stages. A no. 30 Federal RF coil and type 226-W AF (audio frequency) transformer form part of the construction. Three filament rheostats are utilized; also four 201-A tubes. Top slide panel missing. Original price without accessories: $98.00. REF: "Clymer-Greenwood" page 123. "Federal Bulletin" 102-W, (1923) p. 3. "Langley Set Index" p. 24.
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.321095
label: catalog number
content: 321095
label: accession number
content: 241556
objectType: label: Object Name
content: radio receiver
physicalDescription: label: Measurements
content: overall: 9 1/4 in x 13 in x 8 1/4 in; 23.495 cm x 33.02 cm x 20.955 cm