A few months ago I allready built up a version of my "süperblender".
The goal was to have a box with that you can blend two effect-loops. The existing circuits couldn't satisfy my needs, so I began to develope an own version.
There was a lot of help Uwe, eBernd, oli & nessbas from the musikding-forum, so thanks to those guys!
Feel free to use it as you like, modifiy, .... or maybe do a layout
der süperblender