resistance box
Date1910-1930
Inventory Number2003-1-0035
ClassificationResistance Box
Subject
Maker
Leeds & Northrup Company
1903 - 1995
Cultural Region
Place of Origin
Dimensions13.8 × 24.5 × 20.1 cm (5 7/16 × 9 5/8 × 7 15/16 in.)
Material
Accessoriesplugs (5)
DescriptionWooden 5-decade plug type resistance box with a hard rubber top panel. There are ten rows of ten brass blocks in the panel, with space between each pair to fit a brass plug. Five are now intact. There is one additional pair of brass blocks at the top left. There are also two binding posts at the top of the panel. The first brass block in each row is numbered with a number from 0-9. At the bottom, the resistances are marked (from left to right), 100, 10, 1, and .1.
Signedon top panel: LEEDS & NORTHRUP CO./ PHILADELPHIA / 90082 / MADE IN U.S.A.
FunctionSuch an instrument is used to control the resistance of electric conductors. For a short general description and other images, go to the following website.
Leeds & Northrup Company
Date: 1910-1930
Accessories: plugs (12)
Object number: 1997-1-0186
Leeds & Northrup Company
Date: 1910-1930
Accessories: plugs (8)
Object number: 1997-1-0184
Leeds & Northrup Company
Date: 1910-1930
Accessories: plugs (12)
Object number: 1997-1-0185
Leeds & Northrup Company
Date: circa 1938
Accessories: plugs (6)
Object number: 1997-1-0196
L. G. Tillotson & Company
Date: circa 1880
Accessories: plugs (8)
Object number: DW0064
Hartmann & Braun AG
Date: 1900-1920
Accessories: plugs (8)
Object number: 1997-1-0399
