Anyone know where to get a repair manual for a Lincoln Ideal arc
300/300 stick tig machine?

It has five setttings for power. And then a fine adjust knob for power
levels in between. this broke. All it does is full power for each of
the five main levels.

As an alternate, anybody know of a deal on a DC stick/tig welder? if i
can't fix it, the cost is more than its worth to have a tech. repair
it.

Karl