Guitar effects circuits and DIY pedal projects by your old pal culturejam. These were developed over the course of several years, and most have a lot of input from fellow guitar pedal builders on various forums, included BYOC, Madbean Pedals, DIY Stompboxes, and FreeStompBoxes. Anything posted here is fair game for fun or profit.
If you want to see some of the commercial pedals I have been a part of designing, please check out my company Function f(x).
This is a very basic PCB that clones the MXR Distortion+ or DOD 250 Overdrive. It’s a very old project of mine, but the layout is verified and the Eagle files can be used as a jumping-off point for a new project. Download the Plus-Dist … Continue readingMXR Distortion+ Clone
This is basically a Zen Drive clone with a few very minor tweaks. I mainly drew this up because people said, “You can’t do a Zen Drive clone!! It’s immoral!!” And then I said, “Oh, yeah? Hold my beer!” Keep in mind this was back … Continue readingBodhi — Zen Drive Clone
Thought I’d redraw the classic AstroTone circuit and tinker around a bit. With some mods, it sort of reminds me of a light-weight version of the Colorsound Overdriver. The schematic in the File Pack below has the vintage parts values (to the best of my … Continue readingAstroClone — Astrotone Fuzz Clone
The Game of Tones is a modified version of the often-cloned Marshall Bluesbreaker^ overdrive pedal. The main differences include: hard diode clipping to virtual ground (instead of feedback loop), a diode type toggle switch, and the addition of pot to control the high-end frequencies (Presence). … Continue readingGame of Tones: Bluesbreaker Clone
The TweakTone Delay is a PT2399-based digital delay with highly filtered repeats and the possibility of very long delay times (and minimal delay line noise). There is also a tone control trimmer to adjust the high-pass cutoff frequency on the repeats. The circuit was originally … Continue readingTweakTone Delay
The DuoVibe Phaser Vibrato is yet another expansion on Tim Escobedo’s “Wobbletron” circuit snippet first published in 2005. I (culturejam) have done several circuit iterations on this cool little building block snippet (which is also very similar to the basic phase shift stage in a … Continue readingDuoVibe Phaser Vibrato
The Shoot the Moon Tremolo is an optical tremolo originally based on the excellent Tremulus Lune circuit by 4MS/CommonSound. The audio path is similar, but the LFO has been simplified to three controls: Speed, Depth, and Shape (wave shape). The power supply section has also … Continue readingShoot the Moon Tremolo