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.

Monday, June 19, 2017

Catalinbread Sagrado Poblano Picoso/AMZ MOSFET Booster

The Catalinbread Sagrado Poblano Picoso is a bass version of Jack Orman's (AMZ) MOSFET Booster. Really the only difference between the two are a couple cap values. So if you want to build the AMZ version, sub the 470µF cap with a 100µF and the 220nF with a 100nF. Should be a pretty easy fit in a 1590A.


  1. Hi,

    Built it a few weeks ago: tested and verified!
    Great layout for a great circuit ;-)

    Thanks for this site and for your work!



  2. Hello, how do I install this on my bass guitar? And how can I omit the boost pot?

  3. If i want to add gain pot,where should i connect it?thank so much

  4. hi, by boost 1/2, Do you mean this hooks to 1 and 2 terminals on the pot? also boost 3 goes to 2.7 resistor? thanks!

    1. Yes. Boost 3 goes to ground, but so does that 2.7k resistor.