The Tuner is a direct implementation of the tuner sub-circuit proposed by LMNC in his amazing Performance VCO. This is revision V1.0 Checkout the open-source firmware, with a lot of updates recently! github.com/dhaillant/Tune-O-Matic The module is 4 HP wide, 35mm deep and requires 60mA on +12V. This Partial Kit includes the main PCB, with pre-assembled SMD, and the front panel (in PCB material). The Arduino Nano is not included.