Electrical measuring instruments : grand prize Louisiana Purchase Exposition, St. Louis, 1904 (1904)
Leeds and Northrup Company · leaf 16
it is open at thehottMiii and top the cixiling liciuid has free circulation lioth inside ar.d> Utside. Exi)erience 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 makes slight changes in… … Standard Low Resistance 4220. Standard Resistance (Reichsanstalt Form) i ohm. .$30 00 As the illustration clearly shows 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…