MixedTuna - A 3 in 1 out Modular Synth Tuner (WIP)

I have some oscillators with built in tuners (LMNC #1222 VCO) but alot of the time they're not all as thoughtful!This is where I got my idea for an add in Tuner that also Mixes several sources that you can then select which input gets sent to an arduino tuner.This module uses a TL074 Mixer.

An Arduino Nano Tuner.

And a PCB Fabrication service of your choice.