Hello Eurorack
A while ago I started playing around with some oscillators in a circuit simulator and wanted to turn them into a synthesiser module. I was first going to make a standalone module in an effects pedal box, but then I learned about the eurorack modular synthesiser standard and sorta caught the bug.
Synodic Meow
Parts of Synodic Meow on three breadboards
Since I was planning on making standalone modules, I initially designed Synodic Meow around a single supply of +9V rather than the eurorack ±12V, but thankfully it was fairly easy to adapt.
A weird sorta complex-ish oscillator formed by using a PLL to sync a somewhat unstable oscillator to a normal VCO
Submißion
Some delta-sigma encoders implemented with op-amps and a flip-flop. Its clock oscillator is built around a spare flip-flop rather than your more common op-amp or transistor core. In addition to your normal 1-bit delta-sigma output, it buffers the integrator. The buffered integrator gives sounds like a broken pinball machine.
Maxi & Mini
MIDI to/from CV modules. The different versions are named for how many input/output/triggers they have