Lincoln 256 Welder in Garage Sale Posted August 25, 2020 Those look like good MIG welders. A person could buy the required mig gun off EBay or Amazon. The Lincoln 256 is rated for 250amps / 40% duty cycle which is a good strong welder. I own several Lincoln mig welders at lower amp ratings and they have been dependable workers for years. I wonder if the seller might have a mig gun/shielding gas/wire so these could be tested before buying. I imagine the control board in one of those would be very expensive to replace if faulty.