Potentiometers and rheostats are variable resistors needed to regulate voltage or current levels, depending on whether they are connected in parallel or in series. The 3 and 5 watt potentiometers manufactured by Torivac are distinguished by their small size, linearity, smooth and precise handling and long durability. The rheostats, on the other hand, are mainly characterized by their high heat dissipation and their wide range of single-phase, double or triple power.





