Ok, so my mate managed to break the rotary switch in his Digitech Hardwire Delay/Looper pedal by over-turning it. It now spins around freely and is stuck on the last position. We're going to try and fix it, but I have no clue what switch I would need? I think it has 11-12 positions. I also have no idea where to get one of these. Is it a lost cause or is it salvageable?