Dl5treez, I could never understand of Lincoln, in Britain a popular welding machine, some I remember in particular were about 30 inches long by 9 inches square and were AC, as all I ever used were, portable engine run as well. The one I described had no running, turning, wearing parts. At one end there was a handle, to adjust one turned a locking handle and either pushed or pulled the handle, there was a brass graduated scale with a pointer, when set turned locking handle, no fans just static. All the industrial I saw in 1955 and on were huge things, electric motor driven, after all Lincoln was primary an electric motor manufacturer, so the welder gave them two in one machine. The British Lincoln doing the same work weighed around 120 lbs, somewhat lighter than the American mammoth, and no wearing parts.