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, April 28, 2017

Hornby Skewes Zonk Machine

The Zonk Machine was one of the many British fuzz boxes that came out in the mid-60s. Like the Tone Bender Mk II it was designed to compete with, it also was featured 3 germanium transistors but offered more of a boost and slight oscillation (in a good way). This is a positive ground effect so unless you use a charge pump or can make it work with NPN germanium transistors you can't daisy chain it with other negative ground pedals. If you are going the NPN route, be sure to rotate the polarized caps an the diode 180ยบ. Here's the schematic for reference.

Wednesday, April 26, 2017

Lovepedal JTM

Got a request for this one. It's another Electra-derived overdrive, this time meant to sound like a Marshall. This should be an easy fit in a 1590A.

Monday, April 24, 2017

Run Off Groove Supreaux Deux

Got a request to do this one again but with board mounted pots. If you don't know, it's a FET emulation of the classic Supro 16T amp. More info, schematic and demos can be found on the Run Off Groove article.

Friday, April 21, 2017

Black Arts Toneworks Fnord

Got a little Eagle excursion for Fuzz Friday. Here's the Fnord from Black Arts Toneworks. It's pretty much the same as the Escobedo Digital Octaver Fuzz with an added diode lift switch (though that's jumpered in the originals). It's a pretty gnarly fuzz with a wide range of tones. For you perfboard builders you should be able to translate this onto perf pretty easily.

Here's the schematic for reference:

Wednesday, April 19, 2017

Way Huge Saffron Squeeze

Here's Way Huge's take on the Ross Compressor. This is based on an original from the mid 90s that was traced over on FSB. It will fit in a 1590B with side mounted jacks or a 125B with top mounted jacks.

Monday, April 17, 2017

Wampler Pinnacle

Got another cascaded JFET design, this time from Wampler. Great for getting those EVH Brown Sound tones. I've added 2 trimmers for the 2 non-cascaded JFET stages to make biasing at little easier (originals use 22k resistors). Should be an easy fit in a 125B with top mounted jacks, but should also work in a 1590B with top mounted jacks (though you have to be really precise drilling those).

Saturday, April 15, 2017

Perf Board Tutorial

I thought a tutorial on how to build on perfboard would be a good addition to the blog. There are lots of ways to do it, but this video shows how I do perf builds and how the perf layouts are designed to be built. I filmed this ages ago with great intentions, but it took me a year to get it fully edited (video editing is actually my day job and I'd rather build pedals or play with my kids when I get home instead of doing more editing lol). But better late than never! Enjoy.