Links: Building a VCO from First Principles
Here are some resources useful for understanding, designing, and building a Voltage Controlled Oscillator (VCO) from first principles.
The Design of the Roland Juno oscillators - Thea Flowers
A comprehensive deep dive into the design of Roland’s legendary DCO
DIY Synth Series Part 1 — The Exponential VCO - Projects
Build a 1V octave voltage-controlled oscillator (VCO) module and create your own analogue synth sounds.
Robin Mitchell