Ross phase stages vero layout, could anyone have a look?

[daverdave]

Hey all, I've made a vero layout for the ross phaser minus the lfo, the layout contains the 4 stages and the input buffer and output mixer.

I want to use a 4017 sequencer or possibly an envelope detector to sweep the stages, could anyone have a look and see if there's any obvious mistakes? And if any one knows whether it would work with a sequencer or envelope follower or if I need to add something for it to work? Any replies would be greatly appreciated, thanks.