I'm a new guy who is learning to weld (TIG) with a big interest in Aluminum.
While I'm learning, I'm not 100% able to understand all the information/specs given on these two machines.
I've got two welders in mind which are Aircrafter 330 ST and Syncrowave 250 (not DX but older tig-runner package).
What I do not know and would like some help on is the major differences between these machines. I've got a few "Welding 101" DVD's and books but they do not touch on the different types (inverter, transformer, etc / sine wave vs. square wave).
My goals are to weld automotive-related applications (cages, subframes, manifolds, etc). I might see metals up to 1/2" / 12mm thick. I know the output of a 330ST is an overkill but the used-price difference locally isn't too far off from one another.
Here is the 250
And the 330 ST
Any advice is greatly appreciated