resistance box
Date1895
Inventory Number3950
ClassificationResistance Box
Subject
Maker
Theodore William Richards
1868 - 1928
Cultural Region
Place of Origin
Place of Use
Dimensions9 × 26.6 × 11.3 cm (3 9/16 × 10 1/2 × 4 7/16 in.)
Material
DescriptionLong rectangular wooden resistance box consisting of twenty one terminals in a U shape and two large metal binding posts to one end. These elements are mounted on a hard rubber panel over a wooden case.
Signedunsigned
Curatorial RemarksSheet found with instrument reads: Box, resistance, rectangular, wooden, 21 plugs. This was made by T.W. Richards in Ostwald's Laboratory in Leipsig.
If this information is correct, then this instrument dates from 1895.
FunctionSuch an instrument is used to measure 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
Hartmann & Braun AG
Date: circa 1920
Accessories: 6 plugs
Object number: 1997-1-0400
Leeds & Northrup Company
Date: 1910-1930
Accessories: plugs (12)
Object number: 1997-1-0185
Leeds & Northrup Company
Date: 1910-1930
Accessories: plugs (8)
Object number: 1997-1-0184
L. G. Tillotson & Company
Date: circa 1880
Accessories: plugs (8)
Object number: DW0064
H. Tinsley & Company
Date: 1900-1930
Accessories: plugs (15)
Object number: 0292