First of all let me say I'm not a welder I'm a mechanic That likes to weld and build things as a hobby. Now for my problem. I found a old hobart gas powered Mainliner. This is my 3rd machine to rebuild. The other 2 were lincolns. But I want to keep this one because i have never seen one like it. And it is the same age as me. It is a 1960 model. It set in a old barn far about 15 years and was not used much before that. Really it is like new. Ok what i need help with. The fine rheostat element is broken, part # AW608 Made by Mallory it is 150 watt and 50 ohm. Any help is Appreciated. 2 local welding shops basically told me to throw the machine away, that part could not be bought.