Built this. Works as it should, but I'm not crazy about it. And as the thread mentions, the circuit goes into instant loud oscillation when rolling back guitars volume or tone knob. But thanks for the great layout! I was curious to check it out and luckily it's a quick build.
i just built this Sewer Pipes ring verb based on your layout, and i quite like it. it's weird! i noticed your comment "there are lots more similar verb circuits out there", and was hoping you could list a few more projects for me. i know about the Noise Ensemble that the SP is based on, but what other builds can you recommend that are strange and spooky like this?
also, do you know about this one? (based on the sewer pipes). i can't find a vero layout, but there is a schematic. it looks cool.