While waiting for a replacement LCD I have been running it with a external meter, when I need to measure current.
It was the current display that was damaged, I set the current max with a 10k pot also as a temp fix.
and moved the 6k8 pot to set the voltage.
It is a very steady output with no more ripple than my THANDAR PL310 another bin find
I have a few 12-0-12 Toroidal transformer and going to make a 0-25V @ 2.5Amp dual Supply, with or without the Meters.
I'm adding a stop/start switch quick off/slow start, or variable, so I can set the voltage & current and leave it set.