Quote Originally Posted by Ross77 View Post
Wha wha pedal....(Wah Wah if your fussy)..........AKA voodoo chile intro
Dont want to interfer, but if Dean gets mega busy then I could have a go.
Just re-read the thread, sorry about the previous posts.

Is this Idea limited to just sustain? if the coils where energised from a PIC then could some strange new effect be created? Ie just sustaining certain strings for a preset time.............:dance:
Yep Wah Wah is better (I'm fussy!).

Do you know the spec of the inductors in the Wah Wah? In therory, I could probably wind such an inductor...but why? (are they hard to get or something unique about them?)

I'm using a PIC in two places...

1. For the coil winder itself (nothing to do with the sustainer!)...to count things like number of turns, traversal count etc (when to reverse the motor feeding the coppoer onto the coil)

2. In the sustainer circuitry. A lot of folks use an analogue AGC (and a good AGC is what a sustainer needs), but that's a failry lo-tech inflexible approach & since I've just learned how to program PICS (that makes m an expert!), I'll be using the PIC for the AGC. Basically, it'll take sample of the dc rectified incoming guitarl (ie into the sustainer circuit rom the pickup)...based on the sampled incoming level it'll ether increase or decrease the signal at the power amp stage (feeding the sustainer coil). The PIC could also be used for clever switching (mainly powering stuff off when not in use as battery life is key), but I can't envisage actually adding an effect itself....PICs are actaully pretty feeble things processing wise.