Variometer rheostat with switch and regulator
date: label: date made
content: ca 1920
notes: label: Description (Brief)
content: Variocoupler. No extant maker's markings. A fixed solenoid 3.375" dia. is centered on a marble base. A movable coil 6.5" dia. swivels on two angle pieces and thus varies coupling with the stationary coil. Four binding posts on the base provide connections to external circuit.
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.321105
label: catalog number
content: 321105
label: accession number
content: 241556
objectType: label: Object Name
content: Rheostat with Switch and Regulator
label: Object Name
content: resistance
label: Object Name
content: variable resistance
label: Other Terms
content: Rheostat with Switch and Regulator; Components; Radio and Television; Radio and Television
physicalDescription: label: Measurements
content: overall: 5 1/2 in x 6 in x 8 in; 13.97 cm x 15.24 cm x 20.32 cm