Adding a Blend Knob to a Neutron (Mutron Clone)?

[Freekmagnet]

I want to add a blend knob for a wet/dry mix to a Neutron (Mutron III) filter.

Has anyone done this? Where could a find a schematic?

The only info I found in a search was this post where someone stated it was easy to do.

http://www.diystompboxes.com/smfforum/index.php?topic=26178.0

I just found a Neutron Filter PCB I forgot I had.

Thanks!

[chamsdaman]

Just finished building mine. Everything works perfectly except down mode when the range is selected down. I assume there must be some mod that can adjust the down filter sweep? The upsweep works perfectly and sounds great. Made a custom decal for my enclosure. Here are some pics of my build

[chamsdaman]