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.

Friday, January 26, 2018

SolidGoldFx If 6 Was 9

Happy Fuzz Friday, everyone! Here's a nice little modded Fuzz Face from SolidGoldFx. The switch selects between input caps and the Bias pot adjusts the voltages to Q2. Other transistors can be used beside the BC183C in the original. As usual, sockets are your friends. Easy fit in a 1590B.


  1. Thanks for your layouts, the best website for DIY. He graduated Friedman BE-OD, sounds great, now would be more Friedman Dirty Shirley, for happiness. There is the possibility of another site for Donate, no Paypal?

  2. This works, but I can't get it to sound good. I've tried dozens of transistor combinations, lower HFE (sub 100) sounds better, but still needs lots of experimenting still. Anyone have any luck with this?

  3. Hi!
    Are the shape of the transistors opposite on this picture? The BC183C I bought is EBC. Exactly the opposite I can see here.

    1. Typically they're like this:

      Though different manufacturers may reverse it. Use sockets if you're not sure.

  4. Hey alexman
    Dirty Shirley has been done. Do a Google search and buy the PCB's to reward
    the people for their hard work.

  5. I verified this one, used BC170's.

  6. I used the BC183C with 420 hfe, and the sound is amazing, just perfect, this circuit saved my day!