/diy/ - Do It Yourself

I've built a MOT arc welder. It works fine for the most part, but I wanted to rectify it.
Except I regulate it at the primary (which is retarded but not entirely dysfunctional apparently) and I was wondering whether it would even really work.
I'm using an SCR regulator, so I imagine the resulting sine wave looks like shit (I blame that for the amount of spatter in my welding, together with the chinkshit rods.)
What would it even look like after rectification? I don't have an oscilloscope yet...