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, May 28, 2015

Run Off Groove Ruby

Got a request for a headphone amp, "for those of us who hit their peak inspiration when everyone's asleep." Being guilty myself of waking up my 1 year old son with a Peavey Classic 50 with the volume only at 2, I thought this was an excellent idea. So here's ROG's Ruby–a 386-based amplifier that can easily fit in a 1590A, or even an Altoids tin. Check out the ROG article on the circuit for more info and a couple of mods.


  1. Verified!

  2. What should I do with speaker + and -?
    Silly question though..

  3. How do you do those transfers with just contours (lower right in the image above)?

  4. So I can directly plug headphones to speaker connection without worry about headphones?

  5. Hello!
    If the Output is mono, i will hear sounds from only one side of my headphone?
    And another question, is there another layout for little amplifiers on the blog? I was searching but without any success :(
    Thx in advance!