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.

Thursday, January 4, 2018

Earthquaker Devices Disaster Transport Jr.

Here's EQD's take on PT2399 delay. The most unique thing about it probably the use of a Big Muff-like tone stack. It will definitely fit best in a 125B with the board mounted pots, but if you use long leg board mounted pots and populate them from the component side it should fit in a 1590B. Schematic can be found here.


  1. Replies
    1. there are no transistors only an AVR Ic 78l05 or lm7805

    2. bad! I was reading it upside down. Thank you!

  2. No encuentro el esquema... en la pagina de arriba no aparece la imagen, y google no me ayuda...


  3. It`s verified :) Sound like a cloud in the sky. 10K on repeats like me more ;)