New Plasma build question

If you do not mind messing with resistors and making a divider, do get the 10V.
Also if you plan on getting another plasma in the future ( no matter what type ) get the 10V.
If you plan on using that same one till it dies ( it will ), get the 300, but that would bring us back to point 2 of this discussion.
Peraonally i got the 300, add two wires and be done with it. I have no problem building a THC for 15 euros and a lot of time, but time is much more expencive, and i have also goten very fond of Mesa cards.
After dealing with all sorts of electronics and the usual " that is not possible, this has to be exactly this way, you can flash the firmwarw but you need a 2000$ device and there is no ready firmware so you have to make your own, etc etc etc ",
-Mesa cards are a blessing, and PCW is awesome.
So let me use this opportunity to say, PCW, thank you for everything.

It will look ugly !!!
Back in a few....

Here it is, a rough outline, PCW should add the values for the THCAD10, i did not want to mess something in the calculations. PCW, thank you.



Note: R4 can be removed, it is there for fine adjustment just in case you want to have the exact voltage shown in the Linuxcnc GUI. That would require measuring the voltage at the plasma terminals, something i never recommend due to it's inherent danger.

I agree with Peter, leave out the R3 and R4.
That was just a general purpose voltage divider i use often, and since i can not always find the right values, i add the Pot there for fine tuning.