Hello all, Oz Cheek here.
The new 250EX arrived just before Christmas.
I was pleased to see how well everything was packed and protected.
Monday of this week I used the machine for the first time.
After reading the manual and watching several videos on this machine, I felt equipped to try it out.
My previous experience is with a Miller Dialarc 250 HF purchased new in 1987 and a Lincoln Idealarc tig 250
My dad gave me my first machine when I was 14. Airco 225 Stinger, which I coupled a high frequency unit to be able to weld aluminum.

When I cranked up the new machine, I noticed the start frequency was not always present when the pedal is applied. If the arc didn't initiate, throttling up, then down would sometime get things going. It similar to not having a good ground.
When the arc initiates, the frequency pulse seems to increase with pedal travel.
Several different settings have been tried, including frequency balance, starting with 45% and going down to 10 %
Amps from 74, down to 35.
The torch is a Radnor 20 WC, tungsten 1/8 2% Thoriated GTE Sylvania. Material in this case 60-61 .075

After using a newer inverter welder belonging to a friend, the first thing I noticed was how smooth the arc was compared to my transformer machines. Unmatched control and finesse. As you can imagine, I couldn't wait to purchase a newer generation machine. Over the past two years, I have been researching the market place, reading many of the posts on various forums.
I'm confident that there will be a simple solution for what I'm experiencing ?