Electro Importing slide resistance
date: label: date made
content: 1910
name: label: maker
content: Electro Importing Co.
notes: label: Description (Brief)
content: Electro Importing slide resistance potentiometer, a non-inductive potentiometer. Resistance element is a 7.5" graphite rod. Two rods were usually furnished with the unit, one of 300 ohms, the other of 500 ohms. Main use of this specimen was to regulate detector battery voltage. Reference: Electro Importing Co. 1912 catalog, page 17-18. Slider on unit is different from the one in the catalog.
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.320884
label: catalog number
content: 320884
label: accession number
content: 241556
objectType: label: Object Name
content: Variable Resistance
label: Object Name
content: resistance
label: Object Name
content: potentiometer
label: Other Terms
content: Variable Resistance; Radio
physicalDescription: label: Measurements
content: overall: 1 7/8 in x 10 in x 2 in; 4.7625 cm x 25.4 cm x 5.08 cm