Thanks to everyone who came to the pedal building event at Noisebridge on Nov. 1, 2025. Great to see new faces, and always great to see returning hackers! The energy was excellent — I attribute this to the enthusiasm of…
I wonder what happened to Tim Escobedo? The author of Circuit Snippets, a page with a lot of great ideas for guitar effects. The site is no longer active, but it has been archived in a few places; here is…
Had another great session building some guitar pedals at Noisebridge. If you think this interests you and you are in the Bay Area, you should join us! Join the Noisebridge Meetup channel. The pedal workshop is scheduled every other week…
Glitchstorm is an Arduino based bytebeat synthesizer. In short this is a noise maker that generates chiptune style sounds. It’s a lot of fun to play with! In more detail, bytebeats are music generated with software via non-linear algorithm. The…
If you came to the previous workshop, you should have started the Fuzz Face. When you get all of the parts soldered to the board it’s time to put it all in an enclosure. This post covers drilling the box…
The next pedal building workshop at Noisebridge will be about building a Fuzz Face. If you’re in the bay Area check out the workshop on meetup! the Fuzz Face is a classic fuzz circuit with a bit of magic. its…
I built this a few years ago. I got it out and played it for a while. sounds pretty good. This is a Big Muffin with a diode lift switch, and a blend control. The PCB is from It…
This is my take on Tim Escobedo’s Ugly Face. I replaced the LM386 with a dual op-amp and and added a mix control. The LM386 is a great chip but its gain is limited to 200. A single op-amp can…
Big Muff Workshop at NoiseBridge You want o build a Big Muff, good for you! It’s not hard todo follow the steps below. If you’re using one of my PCBs the part numbers on the PCB correspond to the parts…
I found the Schraëg filter while surfing the Modwiggler and lines forums. Described as “Schräg is an expanded repackage of the Bastl Cinnamon multimode filter”. It sounded interesting and I have wanted to try having a project manufactured by a…
Resistors are the most common component you will encounter in electronic circuits. A resistor resists the flow of electrons. To understand this you first need to understand the concepts of voltage and current. Electricity is the flow of electrons. Electronic…
Zap Frequency is a clone of the Systech Harmonic Energizer. This effect is a parametric EQ with variable band width, frequency, and resonance. The effect is very strong! It would make a good wah if you control the frequency with…