Version 0.2.3 from March 2021
VCO that I built for my modular synth drum machine project. It’s based on two LM358 and one TL072, deadly simple.
- ✅ Square and triangle wave
- ✅ Frequency range from 0 Hz to 3.5 kHz
- ✅ FM input with variable attenuation
- ✅ Current: +17mA (+12V), -7 mA (-12V)
This is the third PCB that I etched in lifetime. First one went into trash, second one works but soldering was a battlefield and this one is sufficiently fine 💡
See the comments on Instagram and Reddit.