This general purpose, modulated, pulse-width, low voltage dc controller, can be operated in any of the following modes:

Motor Control: High Frequency (RT/RT1 no link) speed control set by a 5kW potentiometer.

Lighting/Heating Control: Low frequency (RT/RT1 linked) output level set by a 5kW potentiometer as above.

Temperature Control: Thermistor connected across RT/RT1, with a temperature range of 5-130°C. Temperature set by a 5kW potentiometer.


Include speed control of low voltage, high frequency, dc motors, low voltage lighting and medium frequency heaters.


  • Manual or signal control.
    • Temperature control with optional sensor.
    • 180 or 350Hz selectable frequency ranges.