I did give an example of use , circuit boards in general equipment , just reduced to lower voltage - mostly 5vac - 12vac .
If I'm going to spend much $50 -100 + , then I may as well get more features , lower voltage under 5vac and less than a 1 volt ?
I am setting up a repair bench , so not too fond of multiple connections being set up for each use - making simple testing a bigger job , I do check the adjustment with multi-meter .
Being that I am getting into this now , I was surprised there wasn't more options , because so much stuff I've looked at was the same thing , low voltage AC just to run controls of gear .
Another big driver of looking at setting up repair bench & powersupplies is ham radio , but that is almost all DC gear , to mains some of it .