Electronics experts - please help.

[zeegler]

I have a DOD YJM overdrive pedal. Instead of the standard AC socket, it has a 1/8" socket. I have replaced it with the correct type so that I can use my standard adapter snake, and I want to make sure I have it correct. There were 3 wires going to the original socket. A red wire from the positive side of the battery connector, a green wire to the tip of the 1/8 A/C pin, and a white wire going to the shaft of the A/C pin. The red wire from the battery is wired to a switch inside the socket that disconnects when you insert the plug. I just disconnected it, and put some heat shrink tubing over the end, because I don't plan on using a battery. I then connected the white wire to the outside of the new adapter, and the green wire to the inside pin.

Does that sound correct?

If not, what will happen if I plug it in like this?

[Twisteramps]

Your main issue is maintaining polarity. If you use a 9v adaptor and reverse polarity, then you'll at minimum pop a bunch of capacitors unless the pedal has some diode protection. As long as your polarity stays correct, then you should be ok.

Pete

[zeegler]

Is there any way for me to figure out which wire is positive and which is negative?