CV wheel and arpeggiator
This is an interesting module! I had a mod wheel from an old MIDI keyboard and thought it would be nice to have another control source in the modular. However, a mod wheel with only a volume control felt a bit boring, so I added an internal clock source as well as a clock input. The clock signal controls a stepped triangle or ramp wave which is sent via the input to the wheel and then (buffered) to the output. If any signal is connected to the input, this will override the internal stepped wave.
Unfortunately there are no building instructions for this module, but at least you'll find the schematic, some photos, and some comments.
That's it! Have fun and make some cool stepped arpeggios!