I've read thru several threads where the poster converted a Lincoln 225 AC welder to a DC welder. Has anyone here ACTUALLY done such a conversion? The reason I ask, is last Sunday at dumpsters, two guys were fixing to trash an older Lincoln 225 AC machine, which now resides in my shop. There seems to be two items needed, a bridge rectifier (less than ($40 on ebay) and a choke coil. The coil can be made from the transformer in a microwave oven. I am replacing an over the stove microwave oven for a friend this week, so transformer isn't a problem.