The disclosure relates to a turbine wherein the rotor windings receive current from a CPU-controlled high speed operational amplifier and the stator windings include four-stage poles with configurations controlled by the CPU. The control of the current to the rotor and the control of the configuration of the four-stage poles of the stator windings is used to provide for constant amplitude (i.e., voltage) and frequency output of the turbine over a range of rotational velocities and loads. The turbine can be used in many applications including, but not limited to, wind or water driven applications.