Ladd 1867 generator (replica)
date: label: Date made
content: 1964
name: label: maker
content: Miniature Engineering Ltd.
notes: label: Description (Brief)
content: A replica of a self-excited generator (or dynamo) designed by William Ladd in 1867. A wooden base with two flat wire-wrapped field poles mounted one above the other with two armatures, one built into each end mount. Each armature has a pulley on one end and a brass commutator on the other end. Two copper binding posts. One armature provides exciting current to the coils on the field poles, the other armature provides output current. Tag on base reads: "W. Ladd / 11 & 12 / Beak Street / Recent Street. W". Reference: W. James King, Bulletin of the United States National Museum, The Development of Electrical Technology in the 19th Century 3: The Early Arc Light and Generator, 1962: 375-379 fig. 28.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2001.3038.05
label: nonaccession number
content: 2001.3038
objectType: label: Object Name
content: generator
label: Object Name
content: dynamo
label: Other Terms
content: generator; Motors and Generators
physicalDescription: label: Measurements
content: overall: 7 in x 13 1/4 in x 10 in; 17.78 cm x 33.655 cm x 25.4 cm