Leeds & Northrup apparatus at the Louisiana Purchase Exposition 1904 (1904)
Leeds and Northrup Company · Leeds and Northrup Company · leaf 16
face, and as it is open at the bottom and top the cooling liquid has free circulation both inside andi mtside. Experience has shown that ordinary solder has a tendency to crystal-lize and when used to solder resistance wires to their heavy copper ter-minals this crystallization make- slight changes… … Standard Low Resistance 4220. Standard Resistance (Reichsanstalt Form) 1 ohm. .$30 00As the illustration clearly show-, these resistances have potentialterminals in addition to the current terminals. The binding posts for thepotential terminals are mounted on high posts so as to be easily…
Electricity · Electrical Equipment · Electric Circuits · Electronics
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