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

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

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? In the meantime it is best to build this with knurled shaft pots and find some narrow knobs to attach (Thonk have nice ones).

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.
PCB - USD18
Panel - USD20

Small PSU PCB

...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

Plague of Demons - thru0 VCO

PCB set - USD26
panel - USD24
assembled = USD280

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:

note 20 Jan 2018 - just got asked about this, so to be clear: the thru-0 mark in the centre of the panel is simply to indicate what type of VCO this is. I have no connection with Antumbra modules which use the same mark on all their panels (and were released a few months after this one).

CellF in HKW Berlin May 12 & 13

Cellf will be performing at HKW Berlin this Friday and Saturday.
The Saturday show is free and starts at 6pm

Technosphärenklänge #3: Concerts

CellF homepage

Safe in Space by Weepwow

A very nice Wangernumb based track by Weepwow

Coming soon - small PSU

Although I never actually listed it for sale, there is a NLC PSU board with seven 16 pin connector points. It runs off a 12VAC wallwart and uses LM7812 & LM7912.
Anyway, mainly for stand-alone Null-A builders, this is a slimmed down version.

note the comma.

Coming soon - Divine CMOS

New version of Divine CMOS - clock divider, ring modulator/sub harmonic generator, CV and gate pattern generator/sequencer