Evil Red Satanophonic Hellsynth

SWC Spaceyards' 4th DIY 'synth' creation (enclosure still under construction). This is a 40106 IC based project, with a 741 based resonant LPF circuit. Control details: LFO knob X 1, Voltage Sag knob X 1, Panic Button X 1, OSC pitch knob X 5, OSC hi/lo capacitor switch X 5 (osc range), OSC PWM knob X 5, OSC 1n914 diode/33k resistor mix out switch X 5, Filter Cutoff Coarse knob X 1, Filter Cutoff Fine knob X 1, Filter Resonance knob X 1, Master Volume knob X 1. Additional Tomfoolery: LED chaser circuit controlled by LFO pot.

The circuit is self-designed, with extensive reference/modification to circuits found on the Beavis Audio Research homepage, and the Cacophonator and the Weird Sound Generator projects.

Edit:
The Cacophonator was designed by Art Harrison
The WSG was designed by Music From Outer Space
Arguably, none of this would be possible without Nicolas Collins' excellent book (and the source for all of my misadventures into circuitry) Handmade Electronic Music: The Art of Hardware Hacking, specifically Chapter 18: The World's Simplest Oscillator: Six Oscillators on a Twenty-cent Chip, Guaranteed to Work.

Category:

Music

Tags:

• heterodyne
• space
• explorer
• cacophonator
• weird
• sound
• generator
• 40106

[NeoCiabatta]

Did you get the 741 LPF circuit out of the Handmade Electronic Music handbook? Or did you just get the idea of it from there? Either way I'd really like to learn more about that, because this is really neat!

[66outsider99]

@NeoCiabatta I found out about the 741 LPF from a few different projects (MFOS Weird Sound Generator etc.) but I think all roads eventually lead back to the Handmade Electronic Music Handbook (click the 'show more' button under the video, I think I wrote all about it there). A note about the filter, in later projects I changed the filter cutoff controls from two knobs (coarse & fine) to just one, which is more conventional and easier to control the way I like. Thanks for the comment :)

[SyNtH1fEyEd]

sexy :D