8HP Triple Sloth

This module contains 3 Sloth chaos circuits. Each one runs at a different rate; Torpor takes approx. 15-30 seconds to travel around 2 strange attractors, Apathy takes 60-90 seconds and Inertia takes 30-40 minutes.

There are no controls for Inertia, it does what it wants.

The pots for Apathy and Torpor do not specifically alter the frequencies, rather the weight of the outputs. Various settings will cause the signals to spend more time travelling around one strange attractor rather than the other.

Apathy and Torpor also have CV inputs. Sometimes the CV signals are injected onto the chaotic signals but depending upon conditions may cause windows of periodicity or voltage jumps. Generally the results are good.

The X, Y & Z outputs for each Sloth are taken from different stages of the circuit and are all different to each other, although Z is simply the inverted version of Y. The three Z outputs are also fed into a Difference Rectifier and the results of this are available from the + and – outputs at the bottom of the panel. The Difference Rectifier outputs are (ignoring diode voltage drops):

out + = V_Apathy +V_Inertia - V_Torpor  If greater than 0, otherwise 0

out - = V_Apathy +V_Inertia - V_Torpor  If less than 0, otherwise 0

 PCB set (2) - US$24

White Panel - US$20
Ltd run Black Panel - US$21

assembled - US$210

This is not a suitable build for beginners, if you are new to synth DIY, I suggest you get the thru-hole single Sloth.

Build Guide & BOM 

 Note - for versions 1-4 of the bottom PCB; jacks, pots and LEDs go on the BACK of the PCB. 
For version 5, follow the labels printed on the PCB.

Multiband distortion does sax

trip on Muffs posted this track, def worth a listen.
His description -
my multiband distortion processor, recently made this weird thing that sounds like a prepared sax: https://soundcloud.com/tclutterbuck-1/saxthing

It's all four channels of the multiband distortion through four vcas in a feedback loop which acts as a kind of noise source, which is then sent through a bunch of filters which are mixed together and sent into back into the other mbd input. Whole thing is modulated by some lfos through two nlc neurons which provide that pinch bendy stuff, it sounds bloody awful and I love it. no wiggling required, analogue physical modelling let's go

https://soundcloud.com/tclutterbuck-1/saxthing