After months of reliable use, the external hardware on my homegrown 12 V power supply started loosening up. Perhaps it was in my haste to finish it that I didn't screw those nuts in tightly enough, but here I stood with a dilemma. How to open a case that had been hot-glued shut. Well, some careful work with a razor blade fixed that, and I was able to tighten the hardware. But what if I needed to open it again? The solution was to mount three steel angle brackets to the casing, allowing me to open it by loosening just six screws. Plus it makes the unit look totally bad-ass. While I was there I replaced the old knob with a vintage radio dial for a cooler look and easier tuning.