HELLLLLLLLLPPPPP!!!!!!

[Brutus]

I have an old welder which has a 30V Onan genset powering it. There is a double-barreled variable resister that is in the excitation circuit. It seems that this resister has breathed its last.
Does anyone know if I can substitute anything in its place? I'll take some pictures in a couple of days and post them. I don't have quick access to the welder as of right now.
Thanks!

 

[California]

That variable resistor is just windings with a wiper scraping across them, no?

Could you simply jumper across the one bad winding?

Or is there more to it than that?

 

[Brutus]

For the most part, you're right, California. However in this case the wiper is a semi permanent band around one of the coils to which the wires are attached. This issue arose before and I merely swapped the coil around and used the unused end of the resister.
I have checked the wiring for breaks and my connections with no results there.
Thanks for the quick reply.