adaptation of chair audios ilse (open source synthesizer)
Ilse is an elegantly minimal, yet fully functional synthesizer voice in a compact 10 HP Eurorack module. The only thing you need to let it meow is a CV source to trigger its 1V/Oct frequency input (or a MIDI to CV converter and a MIDI sequencer) . Because it has a low part count it is ideal for Eurorack beginners or entry-level DIY projects.
Ilse (the synth) makes great acid sounds.
Ilse is designed to be affordable, easy to build, yet flexible, and feature rich. It is a synthesizer voice for your Eurorack, but can even be driven without a rack using two 9V batteries (not included).
Ilse is fully open source (KiCad schematic and layout is available in a git repository) and inspired by Syntherjack's single-chip synthesizer Totoro.
Available as an assembled Module and as a DIY project.
This Module is currently available.