Hello eddie49, Thanks for your time and information about my problem
Yes, it is a step-switched MIG with two Rotary Cam Switches
I think that the problem is created by the contactor
I found some burned spots on its contacts
Hello, to all members,I'm New in the forum and i need Help about my fsther's Migatronic 350
As he normally weld,sometimes makes a "grizzly sound and it can not provide the specific amperage
Because my occupation is electrician i Have a some view on transformers, rectifier and etc but I'm not...