I'm ready to test the PSU with a homemade dim bulb tester. Ive attached a drawing of how I believe I should map the wiring thru a single pole switch and in to a simple bulb socket that will have a 65 watt incandescent bulb in it. I have a three wire sacrificial 15 amp cord I plan to use, cutting the black into and thu the switch. Not sure If I should or need to run the ground thru the switch or not and pls note that the bulb socket does not have a ground screw- only a brass and a silver screw, thru which I am planning to run the single black wire after it exits the single pole switch. If anyone can opine that'd be great! Thanks photos attached of the switch, socket and my drawing of the proposed wiring.