RCA model UR-1146 wave trap
date: label: date made
content: ca 1929
name: label: maker
content: Radio Corporation of America
notes: label: Description (Brief)
content: RCA model UR-1146 wave trap with instruction sheet. A coil and condenser arrangement for bypassing interfering signals to ground by offering a high reactance to the undesired signal. A square bakelite panel contains pin jacks and a plug fir covering 550-800 kilocycles, 750-1080 kc, or 1030-1450 kc. A variable mica capacitor is then tuned with a screwdriver until the interfering station is eliminated. Reference: "RCA Wave Trap model UR-1146 Instructions". Unit it illustrated attached to a Radiola 33 model that dates from 1929.
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.321836
label: catalog number
content: 321836
label: accession number
content: 241556
objectType: label: Object Name
content: wave trap
physicalDescription: label: Measurements
content: overall: 2 1/4 in x 3 1/4 in x 3 1/8 in; 5.715 cm x 8.255 cm x 7.9375 cm