I recently moved my home shop to a metal building w/cement floor,
heated only when im
there. I noticed light surface rust on the lathe and milling machine,
so instead of getting a
rod heater for the arc welder i bought a cheap harbor freight mig
welder, it sputters alot so i
removed the case and noticed it was basicly a simple dc supply using
only 2 diodes and
a transformer. It seems like it should have had atleast a inductor in
the dc line like real dc
welders do. Has anyone got any ideas on how to improve the circut in
this cheap chinese
wire welder? Im wandering what type of circut miller, hobart or real
migs have, like inductors
or maybe filter caps?