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This rheostat is wound with heavily oxidized constantan wire on a vitreous enameled steel tube. The tube is supported on robust die cast end stands. The heavy duty sliding contact is made of phosphor bronze, and is nickel plated for corrosion resistance. Each end features a 4 mm terminal post that is fitted for an external connection using standard 4mm connecting leads.
Useful for a variety of physics electricity and circuit experiments.
This Rheostat measures 10.25" wide, 2.5" long and 4.5" tall.