Saturday, 13 September 2014

Sloth Chaos

This is a very simple to build chaos module that can be built in 2 ways: slow or VERY slow. Slow means 1 cycle every 15 seconds, VERY slow is 1 cycle every 15 minutes. It can take up to an hour for any change to be apparent when tweaking the pot. This module is ideal for ambience and extremely patient synth users. I developed it as I like to have my synths running whilst soldering away in the workshop and I like slow never-repeating changes to the patches.
The PCB is 16 x 95 mm, suitable for 6HP eurorack panels (panels will be available soon)
PCBs are available now (13/9/2014) for $8 each.
Shipping is $5 per order

The super slow version shown below has two 1000uF caps.

Friday, 12 September 2014

Hyperchaos Module

This vid shows testing of a hyperchaotic circuit. The circuit is comprised of two coupled Wien  Bridge oscillators. There is a temptation to call it 'Hyper Wieners', but I might just leave the 'ers' silent and call it Hyper-Wien.
Anyway, it oscillates at approx 0.5Hz, the PCB will have a vactrol to 'control' it but the effect from any CV signal takes 30 seconds to a minute to make the pattern change.

Thursday, 21 August 2014

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).

Tuesday, 5 August 2014

dual OTA VCO

A dual tri-core VCO intended for the next WAMOD workshop. PCBs may be available in the future. Quite simple design, not great tracking or stability but decent enough and very usable.