eurorack

Hi All, I have an XVCO Two from Frequency central, and I want to add voltage-controlled octave shifting (by means of hijacking its rotary octave switch). Do similar circuits exist already, and are there any resources/guides I should look into? I found a thread discussing a similar idea...

Hi, I'm new here so please let me know if this is in the wrong place to post this or if I should be doing anything differently. (also, hi!) So I'm building a modular synth system using the Frequency Central Power Supply. I've recently built this VCO on a breadboard, and it functions perfectly...