On 22.05.2020 11:08, Tom Wiltshire wrote: >> maybe i'm missing it, but i don't see the VC tilt on that schematic? > It’s a crossfade between the LP and HP at the bottom, with a VCA for each doing the crossfading. It is IC8C and IC8D Best, René -- synth at schmitzbits.de http://schmitzbits.de