commonly used to regulate primary current in a "pole pig" driven tesla coil

wrote in message
oups.com...
Just inherited a used, but functioning, Lincoln buzz box. Needs
electrode holder, but thats an easy fix. I rarely do any stick work
and am curious what I could potentially put this to use doing.

A spot welder would be nice, but I think the transformer is sized
totally wrong (unless I'm misunderstanding the principle)

So what is this thing good for beside the obvious?

Thanks,

Vin