DIY Modular Synth Explained – CD40106, CD4017, CD4046
🔧 UPDATE 2026:
This DIY modular synth project is an early experiment that led to my current hardware and ESP32-based devices.
If you're into weird instruments, system design, and DIY electronics, check out the latest videos on the channel.
Also, my PCBs are all available on my Tindie: https://www.tindie.com/stores/philstu...
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In this video, I explain how my homemade modular synth works, built entirely with CMOS logic ICs.
Modules featured in this project:
• CD40106 – Clock / Pulse Generator
• CD4017 – 10-Step Sequencer
• CD4046 – Voltage Controlled Oscillator (VCO)
• CD4093 – Modulation
• 8038 – Function Generator
• Photoresistor (LDR) for optical modulation
This video focuses on how the modules communicate together to generate complex sounds.
CD40106 Oscillator (clock) : • Build your own CMOS Synth
CD4017 Sequencer : • Build Your Own Synth Sequencer (CD4017 Tut...
CD4093 Modulation : • DIY Synth Modulation – Using CD4093 to Sha...
CD4046 VCO : • Build a Simple Voltage-Controlled Oscillat...
Photoresistor Theory : • Control Your Synth With Light (Photoresist...
#diysynth #modularsynth #cmos