This is a library of perfboard and single-sided PCB effect layouts for guitar and bass. I'm not an electrical engineer by any stretch of the imagination, just a DIY'er who likes drawing layouts. It is meant for the hobbyist (so commercial use of any of these layout is not allowed without permission) and as a way to give back to the online DIY community.

Tuesday, June 26, 2018

Demeter Fat Control

Looking for a mid-range frequency booster? This one's apparently really good at it. Schematic and discussion on FSB here.


  1. Though have not boxed yet, it is verified. I'm concidering building this into my guitar.

  2. Replies
    1. Must have forgotten to upload it. It's in the Demeter folder now

  3. Can LF442 be substituted for anything else? Tried TL062 and OPA2134, but the circuit is giving out ultra low level sound through. Guess I may have made a soldering mistake somewhere, but can't spot anything. Either way - if LF442 is the only way to go, I'd need to import it to my country :/