Lift start and HF TIG

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Started this thread to avoid HiJacking the other one.When I asked about using HF on my Power Mig in TIG mode, the Lincoln Rep told me that it would whack out the machine. He said that if someone was using the PowerMig 350MP and another user was in the lab using a HF Tig unit that the Mig would act up.My thought was that I could just us my HF module inline as I do with the Ranger 9. I don't get it. Why is it that you can use HF on a tig unit and the tig unit doesn't act up? They have electronics too.....I am sure if I sit and think it through I could come up with a possible reason.Does anyone actually know? Enlighten me!Lincoln Power Mig 210MP MIGLincoln Power Mig 350MP - MIG and Push-PullLincoln TIG 300-300Lincoln Hobby-Weld 110v  Thanks JLAMESCK TIG TORCH, gas diffuser, pyrex cupThermal Dynamics Cutmaster 101My brain
Reply:The HF can damage circuit boards in the machine if it has them things like V sense and Pulse
Reply:HF travels all over the place.  That is how it can create the spark to start the arc.It travels along with the DC in  your leads.  It can go through the ground and back to other things.HF will turn the computer on in my shop when I am using it on the other side of the shop and my wires ARE in conduit.I use Touch start when welding on a car or truck with all those fancy electronics.David Real world weldin.  When I grow up I want to be a tig weldor.