Lincoln SA-250-3.125 (Perkins) What You Need to Know-And Knowbody Can Help you!
I have been working in this industry since 1971, and I have a love/hate relationship with
Lincoln Electric. I admire their engineering, particularly the design of the older DC machines. These machines were created in a time when calculations were made by hand, without the aid of computers, and I’m sure a lot of guesswork was involved in the process. They worked!
The basic technology of a standalone alternator, producing constant-current AC
voltage, rectifiers, and is fed into a shunt coil to produce current using an engine-powered dynamo. The arc voltage has two "controls": 1) the "fine current control" (misnamed, but it still works!) and the arc length of the welding rod to the metal, controlled by the welder.

Here it is. Each one of the Underlinded, click and it will take you to the page you need.


