When we tested Stans plate cell,the limiting factor for power was the vari-ac.It is only rated for 5 amps.If you turned up the voltage much over 80 volts out of the vari-ac,it would pull 5 amps.I never seen what the voltage to the cell was at that power level.Didn't test it that much.Remeber,this is not a resonance cell,only an amp restricting one.Which it does do.It allows you to apply more voltage with less amps.The true resonance cell didn't come about until later.
Don