blink said:
tell us about your welder
It's not that scary and it's not rocket science. It's more Tom Edison! Yes those are two microwave transformers with hand wound secondary coils.
http://www.instructables.com/id/Build-a-Microwave-Transformer-Homemade-Welder/ is mostly what I worked from but AAA welder was also a great help
http://www.geocities.com/aaawelder/
If you know an electrician he might be willing to give you some used wire. Tell him what your doing, they get all excited over that stuff. Also around here street lamps are wired with stranded #10 wire and a lineman gives it to me when he runs across it.
I have a couple welders on the lower shelves with hotter settings. The one on the top has taps off different parts of the coil that give me different heat ranges. The lowest setting is for the bike tubes.
GL