Please add gerbers or images of the pcb (.pcb are only for Altium?)

I had a bunch of jack, switches, indicator lights and so on I'd had sitting around for forty years, lucked into a Variac at a yard sale. I had a computer I was upgrading from, so a few fans and such. I had a box of phone chargers to dig through as well. Too, I had some quarter inch plastic someone gave me. I bought a few things, like a bridge rectifier, an AC and a DC volt meter and a DC cap. Put it all together and I had what I needed to make a nice test box.

When I got done, I can tap the shop 120 for anything from 0 to 120 VAC or DC.

The only problem I had was, when there was no load on the system, the cap stayed charged. For that reason, I used a DPDT toggle for the main power. Since the box uses a 5 amp breaker, I only needed one side of the switch. This left the other side free to use to install a 1000 ohm resistor tied to the "off" position, so when the box is turned off, the resistor kicks in and drains the cap without relays or complicated circuits.

Add an appropriate isolation transformer, and this changes from a one-run homer to walk-off grand slam.

for AC/DC radios you still have one side tied to ground, and kind of a hard way to get your DPM's, but if you like building stuff!!! (and I still like 'dim' light bulbs! lol)

Cool project. As it happens, I have a bare bones Powerstat I am looking to house appropriately. Other than your garage, any suggestion as to a source for an enclosure? Also, how would the schematic change for 230v mains?

Really Wonderful Explanation, Thanks