Knott demonstration induction coil
name: label: associated user
content: unknown
label: maker
content: L. E. Knott Apparatus Company
notes: label: Description (Brief)
content: Induction Coil, Knott Demonstration Apparatus. A transformer choke, spark gap, induction coil, and regulating switch are mounted on a mahogany base. The gap is adjustable by means of a knurled bakelite knob. A label marked "DANGER" near the gap indicated the high potential (voltage) present when the circuit was activated. A six-contact sweep type "Regulating Switch" provides Off and five power positions. To be used with a spark oscillator (catalog number 323737) in a bi-polar spark oscillator circuit. Marked: "Designers, Manufacturers and Importers / Scientific Equipment / L. E. Knott Apparatus Company / Boston, Mass." Plate by binding posts: "Experimental", another plate marks the "Transformer".A medium-screw connector is set in the right side to connect a power cord. A lamp socket on a cord would be attached to the connector. See 1921 Knott catalog, page 177.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Dunbar High School, thru Charles Lofton
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.323738
label: catalog number
content: 323738
label: accession number
content: 252354
objectType: label: Object Name
content: Induction Coil
physicalDescription: label: Measurements
content: overall: 6 3/4 in x 23 1/2 in x 19 1/4 in; 17.145 cm x 59.69 cm x 48.895 cm