AC-225 TIG Setup

Plans to add a TIG setup to my AC-225.

DIY TIG foot pedal:

https://www.youtube.com/watch?v=-P6w-tj8_Tk

Plans for using a 240v – 12V transformer to insuate the foot pedal from the welder:

https://www.hobartwelders.com/weldtalk/showthread.php?4089-Here-is-the-schematic-for-SCR-control-of-my-arc-welder&p=423414#post423414