RCA / WSA model UC-1831 "Faradon" transmitting condenser
date: label: date made
content: ca 1923
name: label: maker
content: Radio Corporation of America
label: maker
content: Wireless Specialty Apparatus Co.
notes: label: Description (Brief)
content: RCA / WSA "Faradon" model UC-1831 transmitting condenser. Markings: "Wireless / Specialty / Apparatus / Co. / Boston / U.S.A. / Pat. Pend." A variable capacitor consisting of two metal plates 4.75" in diameter separated by a 1/2" spacing containing a mica dielectric. Central control knob (missing) turns discs through 360 degrees. Corrugated insulator in back. This unit was designed as a series antenna condenser for CW [continuous wave] transmitters and is rated at 400 volts. Capacity ranges from .0001 mfd to .0012 mfd. Reference: RCA 1922 catalog, "Radio Enters the Home," pages 95-96.
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.321512.03
label: catalog number
content: 321512.03
label: accession number
content: 241556
objectType: label: Object Name
content: variable condenser
label: Object Name
content: variable capacitor
physicalDescription: label: Measurements
content: overall: 5 1/2 in x 5 3/4 in x 4 3/8 in; 13.97 cm x 14.605 cm x 11.1125 cm