Hi! today I'm gonna teach you how I made my own guitar killswitch out of a dead NES controller, I know there are tons of instructables on how to wire up a killswitch out there but this one is muuuuuuuuch neater =D no seriously, if you're a guitar playing geek you're gonna love it... So let's get started :)
1. Small philips head screwdriver
2.Soldering Iron and solder
3.gloves, if you're the kind of person who often forgets that touching a soldering iron is not that fun...
NOTE: the button that will kill the sound when the whole thong is done will be the a button, you can change that if you like, but the a button is my personnal favorite...
Step 1: Open Up the Controller
First remove the small screws from the back of the NES controller.
IMPORTANT NOTE: KEEP THE SCERWS IN A PLACE YOU WON'T LOSE THEM, you're going to need them later :)
Step 2: Take Out the PCB
Now remove the back part of the controller and carefully take out the Printed Circuit Board
Step 3: Solder Wires to the PCB
Now solder the end of your wires to the a button terminals
Step 4: Cut the Actual NES Controller's Wire
Now, on the other side of the circuit board, you should see the beginning of the controller's wire, that looks like five colored wires going into a black rubber tube, cut that, you won't need it.
Step 5: Replace Everything
Now place the circuit board back in place, and make sure your previously soldered wires run out form it, put back all the screws in place
Now, remove the screws on the guitar output and take the whole thing out
Then, solder the other ends of the wires to the output jack
There should be three metallic branches on the jack, solder the wires to the ones where there's already wires soldered, it doesn't matter which goes where
Step 7: Close Everything
Screw back the output jack in place, tape the controller to your guitar (optional) and VOILA, you have a NES controller killswitch activated by the a button, now go, and show off to all your friends :)