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, August 4, 2015

Dunlop Fuzz Face - Eric Johnson

Here's a layout for the Eric Johnson Fuzz Face. Had someone ask if they could build it on the basic Fuzz Face layout from last year. Since there's a few extra components in the EJ version, I thought I'd make a specific layout for it. Should still fit in a 1590a though. Q1 is a BC183 (hfe ~250), and Q2 is a BC183C (hfe ~650). Use the trimmer to bias Q2 to 3v.



4 comments:

  1. Hi man, the diode protection this backwards in the layout.wrong polarity.And the 1uf cap in others layout is NP, not electrolitic.Tomorrow say if it works.thanks!

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  2. Replies
    1. Thanks for verifying. Fixed the diode polarity. The polarized cap shouldn't matter much at all tonally. And it's oriented the right way if you do use a polarized cap. I'm just assuming most people have more polarized electros than non-polarized ones.

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