Available as an assembled Module and as a DIY project.
This Module is currently available.
A simple tuner
Tuner is a Eurorack and analog synth tuner utility.
It's a very useful tool, which should be installed in all systems: It will help you keep your VCOs in-tune with other oscillators, or with other players in your band.
It’s based on the sub-circuit proposed by LMNC in his amazing Performance VCO.
The module is equipped with 4 jack sockets, creating a passive multiple. You have the flexibility to input your oscillator’s signal into any of the 4 sockets, monitor the tuning, and subsequently route your signal to connect with other modules as needed.
The open-source firmware can be downloaded here: https://github.com/dhaillant/Tune-O-Matic
https://www.davidhaillant.com/category/electronic-projects/utility-modules/tuner/
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