Voltage-controlled slew processor (8HP)
Slope by Kassutronics.
A faithful recreation of Kassutronics' Slope. Functionally identical, with a few small tweaks to the hardware (and a custom FR-4 panel).
I decided to add the option for a second, more stable voltage reference to replace the original Zener diode. However, in the first PCB the TL432 has been routed incorrectly so I don't recommend using it (has to be installed backwards).