Saturday, 22 July 2017

Bill's cellF synth

This is the last Voice panel (still a few Action panels left). Bill put it into a nice case (design and laser cutting by nathanxl:

Sunday, 16 July 2017

New merch designs

For Australia - go here
For EU -  go to EU Spreadshirt
For North America and everywhere else - got to US Spreadshirt

 For most items you can choose your own colours

Thursday, 13 July 2017

PRIMAL - Hyperchaos

PCBs - USD18
Panels - USD20

Hyperchaos circuit based on a paper by C Li, et al. It can be built to run at different speeds simply by installing different capacitors. Very easy build, no special components needed.
There are 5 different CV outputs and 1 gate output. The CV IN is associated with the CLIMAX pot which determines how high the peaks go. The module can be greatly influenced by the CV in signal and can exhibit some fairly nutty responses at times.

Build guide & BOM

Tuesday, 4 July 2017

ARSEq - 10HP eurorack version

Panel = USD22
PCB set = USD23

Build guide & BOM

Panel template

The ARSEq ( = Attack Release SEquencer) is, as the name implies, a hybrid sequencer and AR envelope generator. It contains a counter circuit with reset, 4 envelope generators and a mixer/inverter stage to get the sequenced output. The envelopes can be inverted if desired to give a greater voltage and complexity range of the output sequence. The individual 4 envelopes are available on the panel as well.
The main difference with this circuit and a regular EG is each envelope requires 2 clock pulses, one to start the attack and the next to start the release stage.
Yes the pots on the panel are a bit tight at 10HP, I should have made it wider, maybe I will one day?

Thursday, 25 May 2017

Divine CMOS returns

This is a slimmed down and modified version of the 4U Divine CMOS.
It can be used as a CV pattern generator with slew, frequency divider, gate pattern generator, envelope follower and a ring modulator that provides sub-harmonics that can be mixed together to create new sounds.
Panel - USD20


...what a lame name, I was gonna call it 'hard candy' but can't be bothered. It was designed to power stand-alone Null-A panels.
Anyway, its about a simple PSU as you can get. Runs on 7812 and 7912 to give +/-12V. If you bolt them to a nice big heatsink, you could even get 1A per rail (using 1.5A spec'd regulators).

This PSU is powered by a 12VAC wallwart, so no need to wire any mains voltages.

The design is a slimmed down version of a PSU we use in the WAMod workshops, the only differences are:
  • only 1 eurorack connector instead of 7 
  • no 5V section
  • holes for installing spade connectors
so keeping these differences in mind please refer to the WAMod PSU build guide when putting this together.

USD8 each

Tuesday, 23 May 2017

Plague of Demons - thru0 VCO

PCB set - USD26
panel - USD24

available now

Build guide and panel template

This VCO uses DG202 (or equivalents) analogue switches to achieve the thru 0 function, based on ideas presented in Electronotes EN#75.
Very nice demo of sounds by Steve: