I didn't see a forum for circuit level electronics but I thought this was the closest thing. So anyway here's my problem. I have a length of RGB led ribbon and I don't want to buy a RGB controller, rather, I would like to make my own because I can't find one that suits my liking. If you can find me a controller thats not too expensive and is what I'm looking for, then I take that advice too. I want to be able to control the brightness level of each channel individually so I am able to change it to any color manually, and also a global control so I can dim it entirely or turn it off. My idea, and I don't know if it would work and I don't want to waste money if it won't, is to have four potentiometers, three hooked directly to each channel, then one connect to the other three. The LED strip is common anode I believe. It just sounds too simple and I'm afraid I left out something. Also, if I'm going to need potentiometers, could someone please point me to the correct type? There are so many in RadioShack and I only have a basic understanding of them. They are going in my car so it's 12DC of course. Thanks for any help.