Anybody heard of this brand of welder?

Downhill pipe line welders prefered the Lincoln Sa200 because the older ones had copper windings and the amperage never varied as the machine got hotter
A strictly DC generator
They were more precise and better suited for that type of welding
Mine I liked because I could easily have more of as digging arc and more of a smoother less aggressive arc for crowning out pipe welds. For a engine drive it also picked the RPM in a spit second
Ive ran Millers and they were just as good and as I tell anyone one of the nicest running/welding machines I ever owned was a air cooled 2 cylinder AE-AD Miller with the Onan flat head engine
You could max that at around 250 amps, it would run 5/32 7018 wire all day
I did X-ray joints with that machine