Double-pole, double-throw switch
date: label: date made
content: ca 1900
name: label: associated user
content: unknown
notes: label: Description (Brief)
content: A double pole-double throw switch with two levers connected with an insulated block. This block is actuated by a brass handle, to switch between two sets of contacts. Six terminals across the back edge of the base, two of which are wired together, three others have separate cloth-insulated copper leads. The base is hard rubber. The switch is part of a submarine telegraph testing system mounted on a black-painted wooden base with another switch and a double key. Maker unknown, possibly Muirhead.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from the French Cable Company
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.336833
label: catalog number
content: 336833
label: accession number
content: 1978.2346
objectType: label: Object Name
content: Switch
label: Object Name
content: telegraph switch
label: Other Terms
content: Switch; Telegraphy
physicalDescription: label: Physical Description
content: wood (switch base material)
label: Measurements
content: overall: 4 in x 11 in x 9 in; 10.16 cm x 27.94 cm x 22.86 cm
label: Measurements
content: switch: 1 1/4 in x 4 1/2 in x 4 1/2 in; 3.175 cm x 11.43 cm x 11.43 cm