anyone experienced with AC circuits?

Justin Meisse

Before I start just let me say I'll be testing everything with my multimeter before plugging it in and I won't be alone when I try it out.

I'm building a hot wire foam cutter power supply, it's basicaly a light dimmer switch attached to a 25v DC transformer. Here are the plans

Instead of just cutting the end off of an extension cord and wiring it into the unti, I took the female power plug out of a computer PSU. It appears as if there's some sort of resistor across the prongs on it's backside, what's it there for? Should I remove it?

Obike

It's there to help against surges and with grounding. I'd suggest you use an extension cord instead of a female plug from a PSU.

Justin Meisse

I kind of thought that's why it was there. If it's going to cause problems I can just unsolder the resistor

notman

It won't hurt it to leave it there. I'm sure you're using the female port so you can easily remove the power cord if necessary... I like those ports also
Make sure you cover the backside though... I made the mistake recently of not doing so and I not only shocked myself when I tried to unplug the device (cause I had it open and wasn't paying attention to where I put my fingers), but I also fried a bracelet that was lose and shorted across the terminals :O It burned some links straight out of it in a giant blue glow.