Orotrol tone control
date: label: date made
content: ca 1923
notes: label: Description (Brief)
content: Marked: "OROTROL / Oro-Tone Co. / Chicago" and "Brilliant - Deep" control settings. A knurled knob varies setting from "Brilliant" to "deep". This unit is an early tone control for a broadcast receiver. Terminal lugs attached to the end of cord.
label: Location
content: Currently not on view
place: label: place made
content: United States: Illinois, Chicago
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.321771
label: catalog number
content: 321771
label: accession number
content: 241556
objectType: label: Object Name
content: radio component
physicalDescription: label: Measurements
content: overall: 2 in x 3 5/8 in; 5.08 cm x 9.2075 cm