Voltage-controlled oscillator (6HP)
Even VCO by Befaco.
My own version of Befaco's Even VCO, identical in function to the original. I shrunk the module width to 6HP because why not?
This is in my opinion one of the best analog VCOs out there. Very easy to calibrate, and tracking is great. Highly recommended!
The 1P10T rotary Octave switch is rather tall, so the other panel controls must be not seated fully into their sockets when assembling. I highly recommend mounting the rotary switch first, standard Thonkiconn jacks are just tall enough to reach their sockets from the panel.