RHEOSTAT, SINGLE TUBE Comprising a layer of resistance wire is wound on a porcelain tube which is supported by end supports. A sliding contact and three 4 mm socket terminals are provided, one terminal being connected to the sliding contact and the other two to the ends of the winding, enabling the unit to be used as rheostat or potentiometer.

RHEOSTAT, SINGLE TUBE Comprising a layer of resistance wire is wound on a porcelain tube which is supported by end supports. A sliding contact and three 4 mm socket terminals are provided, one terminal being connected to the sliding contact and the other two to the ends of the winding, enabling the unit to be used as rheostat or potentiometer.