hmm, plugged it in yesterday and im gettin this weird noise (that im not meant to be getting lol) i have both switches to the right and the regen fairly high and the speed in the middle, and that was working great until now. now i get this weird buzzing noise that fades in with the phase, so every time the phase shifts around i get this annoying buzz thats very noticeable. i was using a battery when i noticed it, took the battery out and used a power supply and got the same ****, and i know that powersupply works (coz its running my micropog.) anyone have any idea of a) Whats wrong? and b) how do i fix it?