Sloth: slow chaos

This module produces two chaotic signals. one is approx 4V p-p, the other about 8V p-p. It can be built in 2 ways, either as slow chaos, about 15 seconds per cycle or as very slow chaos, about 15 minutes per cycle.......perfect for all day everchanging ambience.
Very simple to build, no rare parts, just 12 resistors and 7 capacitors. the plot below shows one output over a 3 hour and 20 minute period (1Ks = approx 16 minutes).