I have two bench power supplies that I have been warned are a bit wonky. I have no other details on them besides that.
How would you suggest testing them?
I have an active load so I figured I'd load them up to their max and see what sort of noise is on their output, then put no load and again look at noise, and then also see how they handle sudden load transients. Also see if there is anything ugly in how they change output voltages.