Finally, a bit of color! This is the Ugly Face fuzz noise snarl stutter box, designed by Tim Escobedo, designer of all sorts of interesting and insane effects. I've added the popular LFO mod to add the tremelo/auto-filter type sounds you hear in the demo below.
Knobs (clockwise from the top left) control noise, gate, volume, frequency, and LFO speed. The switch changes the LFO shape.
What can I say...this thing is insane. If you need to simulate a jet taking off then use this. Every scream and squelch and buzz is exactly what I wanted from this pedal, and more. Very happy with this build. Also happy with the way the enclosure came out. The ugly face on the front is Hedorah, the villain of probably the best Godzilla movie, and the only one I remember watching with a psychedelic freak-out mid movie.
Synth # 2, its a brilliant design from Beavis Audio (the site is currently down but check out the version saved by the wayback machine), a DIY hero, and a great inspiration upon my introduction to the world of electronics.
This synth uses 4 oscillators off of a CMOS chip, running a different ranges to produce different sounds. Each oscillator has a frequency knob, as well as a mix knob, and a switch to go between resistor mixing and diode mixing. To the left of the LED, we have (from bottom to top) a filter to further shape the sound, the power switch, and a voltage starve knob, to glitch up the oscillations real nice. All of this means a ton of options and variety in the sounds coming from this alien. The demo below is the synth by itself, but it sounds great with reverb and delay added.
Beavis also added to this circuit, producing the Heterodyne Peyote Space Explorer. I've built this as well, but am still troubleshooting it. I'll be sure to add a video of that once it's all set. In the meantime, enjoy.
Here's my build of the Devil's Triangle Drone Synth, designed by paulinthelab. Check out his site, he's got a ton of great circuits he's designed and posted for the general public to build, both audio related and otherwise.
This is a relatively simple drone box, with control over the frequencies of the oscillators, and a kill switch for each one. You can get harmonious sounds out of it, but I think it really excels when you have dissonance between the oscillators, or a bit of phasing. This is great as a base to layer further synth sounds over.
Here's a demo video for a pedal I built a while ago, the legendary Bazz Fuss. Designed by the nebulous and mystical Hemmo, this pedal does one thing, and does it extremely well and with startling efficiency: thick, rich, gargantuan fuzz. If you can't already tell, I have a special relationship to this circuit. This was the first pedal I ever built for myself, after first breadboarding it and being nervous as to whether or not I could actually build a functioning stomp box. This isn't my first bazz fuss (that box has been repurposed), but a more elegant, 1590A encased specimen. Put on a denim vest, grow your hair out long, and listen to the demo below.