Quote Originally Posted by blasphemy000 View Post
Only been able to weld aluminum since Monday and I haven't gotten much practice in. I got pretty decent at running straight beads on 1/8" plate so I figured I would give this a try.

I didn't back off the pedal enough at the end on the left side. My pedal is a little touchy as there's a dead-spot in the potentiometer which I plan to replace. I don't think this is too bad for my first attempt at this sort of joint.
Pretty nice! Dimes are quite uniform. Yeah, the end is a bit of a mess but there's an opportunity for some pedal cleaning and more practice.

Quote Originally Posted by Rambozo View Post
Sinewave transformer machines are 50%, just like the input power. Same with frequency 60Hz in = 60Hz out.

Looking good. Take your pedal apart, you might find it's not a pot. A lot of older machines have novel ways of adjusting power, and you might be able to clean it up and fix it pretty easy. The old Miller pedals have a big straight wire wound resistor, with a wiper that rides on the windings. If it does use a pot, I bet it's a pretty nice one that you can clean out.

I found the pic I was looking for.
Man, the internals of that pedal are pretty beefy! Should be able to take quite a bit of abuse. Take a look inside of yours, Brad. I've got a feeling Rambozo is right on the money with his suggestion.