The Hampden Model SFR-100 consists of a chassis mounted, ten ohm, fifty watt rheostat whose terminals are brought off a DC motor. With the rheostat set for maximum resistance, a portion of the series field current is diverted through the rheostat, thereby weakening the series field strength. As the resistance of the SFR-100 is decreased, a greater portion of the series field current is diverted, resulting in a proportionately weaker series field strength.
P.O. Box 563
East Longmeadow, MA 01028
(Toll Free) 800-253-2133 or 888-HEC-CORP
Copyright 2019 CLICK WebDesigns