Harmonic Converger

[rogeryu_ph]

It's just a linear filter afterall if i'm getting it right 

Considering it doesn't use power source there aren't many alternatives left!

Hi Stm,
This is what comes in my mind, build this passive circuit just like this
http://www.muzique.com/lab/pickups.htm
PM me if i'm getting the idea correct and should work before I build it......

Thanks,
Roger