Elliott Bros. electrical bridge
date: label: date made
content: ca 1887
name: label: maker
content: Elliott Brothers
notes: label: Description (Brief)
content: This bridge consists of an instrument with brass external components mounted in a wooden case with a hard rubber top; marked “Elliot Bros, London, No. 1652". It 'is a dial plug type bridge having five decades adjustable from 0.1 ohm to 10,000 ohms. The original resistors in this bridge were probably made of platenoid which is an alloy of tungsten, nickel, copper and zinc. Manganin, which is not affected by temperature, subsequently replaced platenoid and all other alloys for this purpose.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Weston Electrical Instrument Corp., thru John H. Miller
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.313266
label: catalog number
content: 313266
label: accession number
content: 181342
objectType: label: Object Name
content: resistance bridge
label: Object Name
content: bridge
label: Object Name
content: bridge resistance
physicalDescription: label: Measurements
content: overall: 7 3/4 in x 28 3/4 in x 9 3/4 in; 19.685 cm x 73.025 cm x 24.765 cm