Hi all, Not long ago someone touched on using a variac to vary the timing on a RSG by shifting the phase of the power feed to the RSG motor relative to the original waveform from the wall plug. How exactly is this done as I would like to include it in my control unit if possible. Power in OZ : 240 Vac 50 Hz. I am assuming sync RSG's here. Kind Regards, Robin Copini in OZ.