Welders and plasma cutters

[heytwo]

To weld anything ya need electronic power supply .

For the control .

Im collecting them .

I got a Longevity-inc model 518 , but it blew the

transistors . Stay away from them , they wont

honor the warranty , so i lost my $650 ...

All plasma and welding is D.C. .. torch NEGATIVE .

Alum can be welded "dirty" . Its a metal that does

not need to keep its oxides out . Alum is strong

when its oxides are included in the forging .

Its a pain to push the filler rod under the oxide .

But thats an operators problem .