I have an assortment of capacitors which would be great to upgrade those 110V & 220V MIG welders that come from China without capacitors. The upgrades are discusses in the Harbor Freight forum. I will post more specific info on the capacitors I have as well as some pictures soon.Chicago Electric 131 Dual MIG Welder 120Vhttp://www.gr8lakeinnovations.com2x Associates of Automotive Technology: Transmission Technician & Under Car TechnicianAssociates of Electrical Engineering Technology