Klon Buffer

Who doesn't love a Klon, right? Here's the buffer stage of the Centaur. The original Klon uses one side of a TL072 for the buffer and the other for gain stage. If you're building the just the buffer, you can get away with a TL071. I've laid out a perf and PCB for each.

Jordan BossTone

Many associate this pedal with the fuzz tone for "Spirit in the Sky" by Prodigal Son, though I'm fairly sure that theory has been debunked. At any rate, it's a great sounding fuzz, and should be a fairly easy build.

Monolith Oracle Fuzz

This is a pretty cool fuzz box. It's a cross (sonically anyway) between an early Vox Tone Bender and a Big Muff. It uses PNP germanium transistors, but still uses a negative ground power supply. Originals have OC76 transistors with hfe of around 100 for Q1 and 300 for Q2. 300 is high for most PNP germ. devices and might be hard to source, but I've read of people using trannies with typical Fuzz Face gains (70, 100) with good results. The switch on the original is a push/pull on the 250k pot, but a DPDT switch can also be used.

Trill Tremolo by MOD Kits

Here's another layout for a MOD pedal, the Trill Tremolo. On board pots and LED resistor to reduce the offboard wiring mess. I built this one this past summer and I liked the way it sounds, though the Speed control should probably be a reverse log pot. Haven't had the opportunity to experiment there yet. Here's a demo of the MOD kit:

The layout is verified and here's a few pics from my build.

The Aggressor by MOD Kits

MOD Kits has several cool effects kits that are point-to-point using tag strips. The only downside to those is they can take up a lot of space in an enclosure. Here's one of their newest circuits, The Aggressor. It's a high gain distortion effect. Here's a sound demo from their site.

ETI Fuzztone

FSB forum member Nocentelli posted a schematic for this so I thought I'd draw a perf layout for it. Here's what he had to say about it:

"It's a fuzz/distortion/dirt circuit designed by Dan Coggins (Lovetone + Dinosaural designer) for ETI magazine in 1993. Having breadboarded it, I like the sound a lot (like Timmy's vulgar older brother), the tone pot seems to be a nice useful variation of the BMP."

ZVex Fuzz Factory

Here's my take on the ZVex Fuzz Factory. The originals have the pots mounted to the board as well, but ZVex uses the little square pots which are more expensive. I wanted a layout that used regular 16mm pots, which are easier to come by and what you probably already have in your parts stash. Q2-3 originally were AC128s, but any PNP germaniums should work fine. I believe ZVex has used a variety of different germaniums over the years. Hfe ranges should be around 70-100 and 100-150 respectively (much like a Fuzz Face).

For what it's worth, most of my layouts with onboard pots are meant to be mounted from the solder side of the board, like this:

You can do the same for this layout, but it's designed for the pots to be on the same side as the rest of the components, like this:

This way, the board will be vertical inside the enclosure, and the controls will be aligned like the original: