WHY AM I GETTING MICROPHOnIC FEEDBACK?

[KBliss]

I just installed my hybrid into an AX4O. At a moderate/high gain level it gets feedback- microphonic, like b string 12th fret harmonic pitch wise.

Is this possibly a side effect of mismatched coils, or does it mean only one coil is working? It doesnt hum , just whistling feedback...

THANKS FOR ANY ADVICE!!!

[KBliss]

Bump

[Varg]

Did you put a cover on it?

If not, did you tighten the bobbin screws enough (or overtighten)? If there's a small gap, they will vibrate I'm sure. (I'm assuming you made the hybrid yourself).

[GilmourD]

Did you hit it with some heat from a hairdryer to reset the wax?

[King IzzO)))]

Yeah, you gotta make sure everything is snug in there, not too tight, or you can strip the bobbins, but snug. The hairdryer works pretty well too, I just don't usually find it necessary, plus, I have my own pot. If I've got a pickup that looks to me like it needs it I give it a dip.