Yep, i owned two of them when i had my shop in chiraq. Copper
windings and no fancy electronics. Never needed any repairs in the
20 years i owned them, just vacume out the inerds once a year.
A very good machine for GP welding.
The DialArc lacks the more modern features of the Sychrowave etc.
There's no square-wave duty cycle control, no pulse frequency. It's
either AC or DC.
Anecdotal input for what it's worth: I've had several weldors tell me
that they had problems when "the boss" traded out the DialArcs for
Synchrowaves. Guys who could TIG aluminum fuel tanks leakproof every
time with the DialArcs had a LOT of problems with the Synchrowaves.
I don't know because the only TIG I've ever had is my DialArc HF. I'm
pretty sure I wouldn't trade it, though. It does everything I want it
As Gunner notes, there are about no essential electronics in a
DialArc. It's about 400 lb of copper and iron, about impossible to
For perspective: I'm just a hobby craftsman, not a production shop. I
am not a professional weldor.