Leeds & Northrup type S resistance bridge

Description (Brief):

Bridge is contained in a wooden box with hinged lid, with leather carrying strap. Marked in red letters on the cover is: "Cable testing Division of IBT Company." Marked in red letters on the side is: "SO Cable Testing Div. Serial Number is 48921. Used primarily for measuring resistances, insulation resistances, locating faults by Murray or Varley loop method and for locating open circuits. Compact construction, accuracy of adjustment, light weight, ease of operation, and moderate costs made this Leeds & Northrop's most popular testing set in the years after its introduction in 1912. Unit originally sold for $90.00.

Date Made: ca 1918

Maker: Leeds and Northrup Company

Location: Currently not on view

See more items in: Work and Industry: Electricity

Exhibition:

Exhibition Location:

Credit Line: from Leeds & Northrup Company, thru. A. R. Floreen

Data Source: National Museum of American History

Id Number: EM.316574Catalog Number: 316574Accession Number: 225196

Object Name: Bridge, Resistanceresistance bridge

Measurements: overall: 5 in x 7 1/4 in x 9 in; 12.7 cm x 18.415 cm x 22.86 cm

Guid: http://n2t.net/ark:/65665/ng49ca746ab-927e-704b-e053-15f76fa0b4fa

Record Id: nmah_704081

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.