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, December 3, 2019

Vertex T-Drive

Here's Vertex's Trainwreck-style pedal. Essentially a modified Ibanez SD-9. BJT input buffer, opamp gain stage, followed by hard clipping, a fixed BMP-style tonestack, and JFET output stage. Schematic over on PedalPCB.


  1. Wow, my dream overdrive pedal!!
    Let's heat the solder

  2. Verified.

    It sounded great right off the bat, but I'll be playing with it a little bit and see how it compares to online demos of the real pedal. My J201 is of questionable eBay origin and at some point I'll likely swap some parts out to see if it makes any difference.

  3. Verified! This thing is amazing, so much clarity and sustain. I built the original circuit but wasnt quite satisfied so I tweaked mine a bit, used an LM833 after testing every dual opamp I had and changed the bias resistor to a 13k3 after breadboarding a B25k pot and turning it until it hit the "sweet spot" to my ears. Thanks for the layout!!

  4. i'm from Brazil and i can't find diode 1n5817 can i use something else as a substitute?

    1. A 1N4001 or any other rectifier diode will work

    2. Aqui no Brasil vc pode comprar o diodo 1n5819, vai funcionar de boa.