Knapp motor for rotary spark gap
date: label: Date made
content: 1919
name: label: maker
content: Knapp
notes: label: Description (Brief)
content: Knapp motor for rotary spark gap used in amateur station 3BV. A small electrical motor used with a rotary spark gap, probably catalog number 325495. Steel casing with open frame for ventilation, cloth-insulated wires. Metal loop on top is set on a nameplate that reads: “Knapp / [type?] A 1”.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Paul G. Watson
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.325496
label: catalog number
content: 325496
label: accession number
content: 252994
objectType: label: Object Name
content: motor
label: Object Name
content: electric motor
physicalDescription: label: Measurements
content: overall: 4 1/2 in x 3 1/2 in x 5 3/4 in; 11.43 cm x 8.89 cm x 14.605 cm