Those that build a lot of NLC modules will know this is one of my favorite circuits. The diff-rect has appeared on the Neuron, 1050 mix/sequencer, triple Sloth, GENiE and 8 of them make up the Let's Splosh. It is great for mixing audio and/or CV signals to get all kinds of unexpected and interesting results.
The panels are available in Pulp and Intellijel formats and in white/gold or black/gold, please specify when ordering.
PCB & panel set = USD10
assembled = USD55