I made this tool so I could discharge the large capacitors I’m using in a controlled maner as just shorting them with a screwdriver leads to big sparks and contact errosion.
It’s simply a 10 Ohm 50 Watt power resistor attached to a nice thick cable and some crocodile clips all with plenty of heatshrink. I settled on 10 Ohms after doing a few rough calculations given the level of voltage I’d be using it at.