Zodiac Electronic & Scientific Corporation manufactures Single Tube Protected Rheostat. Zodiac Electronic & Scientific Corporation also manufactures various types of Electronic Instruments and Physics Instruments. The Single Tube Protected Rheostat, Model ZES 222, is variable up to 345 ohms at 1.2A rating for use as a series resistor or a potentiometer. The Single Tube Protected Rheostat is enclosed in metal case with windings on porcelain former of diameter 350 mm long X 56 mm. This Rheostat has three 4mm socket terminals and four tapped mounting lugs.
