JFET Overdrive
I could have sworn I posted this back when I started this blog, but apparently not (hence the ‘old school’ pcb). It’s another of Nocentelli’s designs and somewhat similar to the Marvel Drive. Original schematic can be found on the FSB thread.
Earthquaker Devices Hummingbird
Here’s a cool variation of the Vox Repeat Percussion tremolo from EQD. It adds some extra controls to the original circuit for more versatility and control. I had a hard time tracking down a schematic for this one and ended up just tracing the vero layout from the Tagboard Effects blog. So here you go … Read more
Tech 21 SansAmp Classic
Here is a layout for a very famous pedal. There were some noise issues with the original buffered version. I’ve added a true bypass version below.
Run Off Groove 22/7
Here’s something interesting to do with some of those 4049UB chips. It’s a CMOS Big Muff (22/7 being the fractional equivalent of pi). Brian from ROG added a switch to the tone stack to allow for flat response and a super scooped response, in addition to the classic scooped mids. I’ve also drawn up a … Read more
Madbean Zero Point SDX2
Madbean’s updated version of his great Zero Point SDX delay pedal. You can find all infos on this circuit or buy one of his PCBs here: http://www.madbeanpedals.com/projects/index.html There are no videos available at the moment.
Madbean Harbinger One
This is Madbean’s version of the famous Univibe pedal. I’ve added a “Multi-Vibe Mod” to it. You can find all infos on this circuit or buy one of his PCBs here: http://www.madbeanpedals.com/projects/index.html 09/11/2016 Layout Updated! Changed the charge pump daughter board. There’s also a different but verified layout by Savvas in the Forum section.
The Drivestortion Project
I really enjoyed making the Big Muff Project file a couple months ago and thought it would be fun to make a similar project based on the MXR Distortion +/DOD OD250 circuit (in an attempt to combine the 2 names I call this project the Drivestortion). This circuit was also cloned by other pedal manufacturers … Read more
Lovepedal Silicon Fuzz Master
For #fuzzfriday, here’s an interesting take on the Fuzz Face circuit. It uses silicon PNP transistors, but is still a negative ground effect (so daisy chaining power supply is still ok). I guess Sean had a bunch of extra 2N3906s lying around. I took a few liberties with the power filtering and polarity protection, but … Read more
Run Off Groove Britannia
And improvement over the original English Channel project, the Run Off Groove Britannia is an adaption of the classic Vox AC-30 amp into stompbox form. Couldn’t squeeze this one into a 1590B with onboard pots, but it’s laid out for a 125B enclosure. Pots are right angle PCB mount type, mounted from the solder-side of … Read more