CGS-10 Mini-Keyboard

1v/octave pushbutton keyboard

This is a 13 HP Eurorack adaptation of the CGS ‘mini -keyboard’, It is a 1v/octave pushbutton keyboard spanning 16 semi-tones, so 1 octave + 4 additional semi-tones, based around the 74C922 matrix chip.
In addition, I included a cv-mixer to add control voltage,so it can be used to transpose sequences.
This is a special edition version using a standard keypad.

Inputs: CV-in;
Outputs: CV-out, Gate-out,
Controls: 16 note-on keys, 1 tune pot.