In this video, I build a homemade oscillator synthesizer using a single CD40106 Schmitt Trigger IC. With just a handful of components, you can create six independent oscillators, mix them together with a passive mixer, and generate wild experimental sounds.
What you’ll see:
How the CD40106 IC can be used to build simple oscillators
Pitch control for each oscillator using resistors & capacitors
Random capacitor values for unpredictable, chaotic tones
A passive mixer combining six oscillators into one output
The final sound demo — from glitchy bleeps to walls of noise
This DIY sound circuit is perfect for anyone exploring circuit bending, synth DIY projects, or experimental electronic music. Whether you’re into lo-fi sound design, noise music, or just learning electronics, this project shows how much fun you can have with a single chip.
If you try your own version, let me know what crazy sounds you get!
CMOS Synth : • Build your own CMOS Synth
Passive Mixer : • Build a Passive Mixer for Oscillator
#diysynth #oscillators #CD40106