De Forest type CS-5 radio receiver
date: label: date made
content: c 1930
label: date made
content: ca 1930
name: label: maker
content: De Forest Radio Telephone & Telegraph Co.
notes: label: Description (Brief)
content: Marked: "De Forest Radiophone Receiver / Made under Patents of De Forest / Radio Company, Passaic, N.J., USA / type CS-5 / 1.5 to 20 Megacycles / Serial no. 272. Receiver is a four tube radio designed to cover frequency range of 1.5 to 20.0 megacycles. Untuned radio frequency stage is followed by a detector and two audio stages. Tube complement is normally a 422 screen grid tetrode in the radio frequency stage, a 412A detector, a 401A in the first audio stage and a 412A in final power stage. Plug in inductances are used with receiver which form tuned plate tank circuits with the variable capacitor. Recessed dial is calibrated 0-100. Price of unit $75.00 in 1930. REF: "Langley Set Index", page 19 Operating Instructions: De Forest CS-5 Radiophone Receiver. (Clark Collection: SRM 45 - 898A).
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.320695
label: accession number
content: 241556
label: catalog number
content: 320695
objectType: label: Object Name
content: receiver
label: Object Name
content: radio receiver
physicalDescription: label: Measurements
content: overall: 6 1/4 in x 9 in x 5 in; 15.875 cm x 22.86 cm x 12.7 cm