It was bound to happen. I finally got tired of finding the appropriately-sized wall warts to power my workbench projects. It was time for a new power supply. I picked up a reasonably priced 30v 5a Korad KD3005D, which seemed to have the small number of features I needed.
Upon its arrival, and after the unpacking excitement waned, I noticed a small problem. The voltage being produced was way off from the displayed amount. This was troubling, and an email to the manufacturer brought about a new control board which I swapped out. Bummer is, the same problem persisted.
Dumb cheap-ass supplies right? My concern for the second service inquiry is them doubting my technical prowess, so i ordered a second multi-meter. I wanted to be able to have two meters showing the output, which wouldn’t match the power supply. So i got a TekPower TP4000ZC ordered (serial output!) off Amazon (thanks prime!).
Wired the new meter up with my old meter (acquired in 1993) and low-and-behold. Problem on my end.
My trusty old meter turns out to be not so trusty. Sorry, Korad – sorry I ever doubted you. Threw the old meter in the trash and picked up a second TekPower. Nice to have two.