Leeds & Northrup apparatus at the Louisiana Purchase Exposition 1904 (1904)
Leeds and Northrup Company · Leeds and Northrup Company · leaf 15
There is a double binding post on each pillar sothat they can be connected together with copper links. The total resist-ance is wound on 40 spools so that there are ^5,000 ohms to the SpoolEach spool is thoroughly insulated 14 THE LEEDS & NORTHRUP COMPANY Resistance Standards For more detailed… … 4215. Standard Resistance (Reichsanstalt Form) 1 ohm. .$20 00 The resistance wire is wound on a metal cylinder 7 c. m. in diameterand 10 c. m. long. It is insulated from the cylinder by silk which isshellaced and baked on it. The wire in addition is double silk coveredand is shellaced and…
Electricity · Electrical Equipment · Electric Circuits · Electronics
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