resistance box
Date1870-1900
Inventory Number0362
ClassificationResistance Box
Subject
Maker
American
Cultural Region
Dimensions8 x 6 x 6 cm (3 1/8 x 2 3/8 x 2 3/8 in.)
Material
DescriptionThe resistance coils consist of five helical wound pancake coils 1 3/4" dia. and separated with wood spokes. An ingenious scheme of wiring provides for all resistances from 1 to 10 with just two small plugs connected together. This is by no means a precision instrument but indicates ingenuity in coil winding and connectors and may be somebody's pilot model.
Signedunsigned
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.
Date: late 19th-early 20th Century
Object number: RS0168
Leeds & Northrup Company
Date: 1910-1930
Accessories: plugs (12)
Object number: 1997-1-0185
H. Tinsley & Company
Date: 1900-1930
Accessories: plugs (15)
Object number: 0292
Leeds & Northrup Company
Date: 1910-1930
Accessories: plugs (8)
Object number: 1997-1-0184