Here’s the Fold Processor from TipTop audio which is inspired by the middle section of the classic Serge Wave Multipliers. It’s a great sounding folder with an inject control that adds voltage to adjust and manipulate the symmetry and wave shaping. You can sum two inputs and there’s also a unique sub dividing circuit allowing for /1 /2 /4 /8 outputs that you can blend down to one output. The sub divided output is a train of pulse/square waves that adjust and morph depending on the fold and inject levels. Skip around the sections below, watch in full, enjoy and be sure to ask any questions. Cheers! 🙂

http://tiptopaudio.com/fold-processor/