Overdrive
MXR Distortion +
The classic ’70s overdrive by MXR, and is essentially the same as the DOD 250 and Ross Distortion. I designed the layout to have onboard pots, to alleviate some offboard wiring. It also has the LED resistor on the board, again to reduce offboard wiring a bit. It’ll fit perfectly in a 1590B enclosure. Might … Read more
HBE Power Screamer
Haven’t counted, but i believe we have fair number of Tubescreamers and derivatives listed here. And here’s one more. Tweaked with couple of mods to low frequency response and gain. Switchable diodes etc. The boost switch is a stomp and with 2PDT you can use the second pole for a LED. I’ve omitted the 27K … Read more
EHX Germanium Overdrive
Thanks to Miro for the excellent trace job he did on this. Hope you’re stocked up on 470nF caps. They were all polarised but I have shown poly for the caps with a 5mm pitch because I expect that is what most people will use. I have shown electrolytics for the two with only a … Read more
Ibanez BB9 Bottom Booster
Here we go with one of my personal favourites. To me, the sound is simply amazing. As Dirk’s notes on the schematic suggest, you won’t be saving any money by building this. New ones sell for pretty cheap and one should be able to score a used one for a very decent price. I still … Read more
ROG Britannia
Here’s a challenge for those who want theirs in 1590B. Should fit, but it’ll be a challenge. From ROG: The English Channel was our first attempt to adapt the Vox AC-30 Top Boost amplifier for use as a guitar pedal. Released in 2004, the English Channel was a straightforward JFET implementation that was heavily based … Read more
Nick Greer Green Giant
Request. Sorry Zach (rocket88), I was in the mood to do a quicky and this fit the bill nicely :o) This is very close to the Ghetto Stomp and probably could be thought of as a cut down version with saturation control on the diodes. Oh another pedal that used it before Fuller’s ridiculous patent! … Read more
Effdub Flapjack OD
Stumbled on to an older Effdub design. This one’s based loosely on the Hot Cake and should deliver similar overdrive sounds. Could even solve the oscillation issues a few folks experienced with our original Hot Cake layout.
Freekish Blues Alpha Drive
As pretty much everyone must know by now this pedal was a re-badged Joyo Ultimate Overdrive with 3 resistors added, and that in turn is a very lightly modded OCD. But the TGP favourite Freekish Blues Alpha Drive does still have a lot of fans who will argue to their back teeth that the sound … Read more
Resonant Electronics Acceleron Fuzz
This is a really great sounding fuzz and definitely something different from the norm, so props to Resonant Electronic Design. You’ll notice on the layout there’s a cap marked ??? and as you can probably guess the guy who did the trace didn’t get the value of that one. Looking at it though I suspect … Read more