I never really understood why some guys spend days messing with microwave oven transformers to get high amperage AC, when, there is an over-abundance of high amperage DC devices driving around. This is first in a series of experiments to make a dirt cheap spot welder. Long term projects here: http://www.Patreon.com/AvE On-going project code here: https://github.com/Bumblefuck/Battery-Tab-Welder