double penetration filter - eurorack

Published on Apr 2, 2014 cirtcele·123 videos

"Eurorack version of the double penetration filter"

nonlinearcircuits sequencer panel

YouTube Uploaded by cirtcele on Sep 1, 2011

Watch your audio levels on this one. It starts LOUD!

"just trying out the 1st completed panel. more info - http://nonlinearcircuits.blogspot.com/"

Klemt Echolette-Maestro Rhythm Master-Astor Tube Radio-Vintage Jam.MOV

YouTube Uploaded by NakagawaGakki on Aug 6, 2011

"Vintage Tube Jam. My decrepit Astor Tube Radio from 1949 being mashed by the modulation gate of the 1971 Maestro Rhythm King Mk4 then fed to the awesomely hungry 60s era Klemt Echolette NG51s Tube Tape delay... Spat straight out at the camera.

Live recording of a similar setup for Noizemaschin #1 19/07/2011:
http://soundcloud.com/i-n0jaq/thermionik-molestah

Video of the same:
http://youtu.be/a3aXp1KesWM [below]

Live recordings of all artists performing at Noizemaschin #1:
http://theartifactory.bandcamp.com/album/noizemaschin-1"

I.n0jaQ

Uploaded by cirtcele on Jul 23, 2011

"Artifactory NoizeMaschin#1 July2011 From the blurb:
I.n0jaQ - I.n0jaQ will be dusting off 1950s tube radios, 60s tape reverbs, 70s preset rhythm boxes, 80s educational machines and 90s found electronics. The unmistakable warm tone of last century's analogue circuitry intensely over-driven to timeless noise brutality levels."

nonlinearcircuits 1U Signum 2

Published on Aug 21, 2019 cirtcele

via nonlinearcircuits

"In the simplest sense, this is a switching module. It is a little different though because it has 3 states rather than just on/off:
\operatorname{sgn}(x):={\begin{cases}-1&{\text{if }}x<0,\\0&{\text{if }}x=0,\\1&{\text{if }}x>0.\end{cases}}
In this case, the module uses approx 1V, rather than 0V, as the switching point, so that it can be controlled by gates. It is simple to bring it back to 0V for those who think it should be.
Also the '0' state is really a result of the diode voltage drops rather than any circuit design trickery.

The signal on the bottom input is fed to the switch of the Switch jack (oh yes) so the incoming signal can switch itself without any help.
The three states actually mean there is a flat spot at the switching point, so the circuit can be used for audio but at slow rates there is a click, so it is far better suited for CV processing.

This circuit originally was used as the nonlinear element in the Primal Hyperchaos and two of them in the Hyperchaos Deluxe. I quite like it on its own, so the Signum Hyperchaos brought the signum section to the panel where it could be used as a stand-alone module. This version drops the chaos and just has the Signum.
The switching is done by diodes rather than a dedicated IC.

The panels are available in white/gold and black/gold in both Pulp Logic and Intellijel formats. Please specify which colour and which format you want when ordering.

Also the PCBs are the same for both panel formats and use a standard Eurorack power connector. There is no provision for the Pulp Logic 3 pin power connector.

PCB and panel set = USD10
Assembled = USD55"

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nonlinearcircuits - low pass gate

Published on May 20, 2014 cirtcele·127 videos

"Based on the buchla LPG with a few mods to the CV and Q sections.

Quick demo as my camera battery went flat in the middle of it, so no dog even....sorry!"

nonlinearcircuits Cellular Automata 1

Published on Jul 14, 2019 cirtcele

"NLC Cellular Automata module demo. It can be used as a CV pattern and gate generator. There is little control over the patterns other than feeding signals into the 4 seed inputs"

via nonlinearcircuits

"This is a 16 cell gate and pattern generator using cellular automata rules 90 & 150. It will run thru a process driven by a clock signal and requires a signal on one of the seed inputs (anything crossing 1V) to start a new process or alter the current one.
A process without seeds may run for hours or minutes, depending upon the start point and clock rate.

There are 3 CV outputs, two based on what is happening on each half of the circuit, one reflects the pattern created by the active cells. Each cell has a gate output.

The circuit uses CMOS chips and op amps, no microprocessors. It is a big build!

PCB set = USD25
panel = USD23

assembled = USD280"

EG from NLC VCO panel

Published on Nov 22, 2014 cirtcele

"This vid demonstrates some of the outputs obtained at different pot/switch settings. This envelope generator is based on an EMS design and resides in the nonlinearcircuits VCO panel."

lpf quo nlQ fdbk

Published on Nov 13, 2013 cirtcele·105 videos

"this vid is a simple demonstration of the nonlinear resonance (nlQ) effect on this VCF. In the 1st half the nlQ pot is left at zero and the regular Q pot is turned from 0-max.
In the 2nd half, the reqular Q pot is left at max and the nlQ pot starts at max and is wound back.
This VCF is also a very effective quadrature oscillator and is part of the nonlinearcircuits drum panel, more info - http://nonlinearcircuits.blogspot.com..."

nonlinearcircuits 8x4 matrix mixer

Published on Mar 13, 2015 cirtcele

"This one has 8 inputs and 4 outputs, under the hood are 32 VCAs and 4 mixers. The proto-type worked well, just needed 2 links added and a few resistor values tweaked to get unity gain for a 5V CV."

nonlinearcircuits 3 panels

YouTube Published on May 10, 2012 by cirtcele

"First play with these three panels - sequencer, VCO and filters.
more info - http://nonlinearcircuits.blogspot.com.au/"

dr gogo

Published on May 16, 2013 cirtcele·80 videos

"dr gogo is based on the analogue board of the DR-55 drum machine. Individual trigger inputs for the 4 drum sounds, accent gate input. Pots for RS tune and BD tune & decay.
I added a noise gate & touch of reverb to the mix, my camera has auto level adjust so in the silent parts it immediately turns the gain up to 11 for a good dose of noise."

dual drum module

Published on May 16, 2013

"two drum modules, these use envelope followers, crude VCOs and VCAs, so can simply be used as VCOs as well. These are based on designs published in an old Japanese magazine article, I heard these demonstrated by Under Techno Systems at a Tokyo synth meet back in 2004 and never forgot how fantastic they sound. They have been changed a lot from the original design but the basic circuit blocks are the same."

bindubba5 demo #2

YouTube via cirtcele | September 05, 2010

"Slower clocking than in demo 1, hopefully gives a better idea of what the sequencer is doing. The clock2 input is initially patched into one of the gate outputs, then is shifted to a Wogglebug stepped output and back to a bindubba5 gate near the end. The bindubba5 CV outputs are fed to a CGS VCO and CGS49 twin CMOS filter. One filter is in LPF mode, the other in HPF. Audio and video recorded on a Nikon coolpix (awful camera - don't buy one). Sounds pretty raw but a lot of that is due to the distortion pots on the filters turned up to max.
more info - http://www.sdiy.org/pinky/data/bin5.html"

cellular automata sequencer - shorts 4

Published on Aug 5, 2013 cirtcele·91 videos

"another CA wiggle, more info - http://nonlinearcircuits.blogspot.com..."

DelayNoMore

Published on Apr 22, 2016 cirtcele

"was asked to make a vid where you can hear the original clean signal. I hope this shows that the DelayNoMore is a crappy delay module but good at glitchy mayhem, which is what it was designed to do."

nonlinearcircuits dp filter - simple patch

Published on Apr 21, 2014 cirtcele·125 videos

"Final test before shipping this module. This is just a fixed frequency pulse into the dp filter and a sine(y) LFO signal to the transistor ladder CV in. the transistor ladder output is fed to the main input. The summed out goes to the mixer."

VCO & Sequencer panels

YouTube Uploaded by cirtcele on Nov 28, 2011

"just mucking around with VCO & sequencer panels. The sound is just the pan-pulse and processed saw outputs of the two VCOs into the mixer, no filters or VCAs. More info - http://nonlinearcircuits.blogspot.com/"

nonlinearcircuits DelayNoMore3 - proto-type

Published on Apr 29, 2019 cirtcele

"Triple version of DelayNoMore (proto-type), can also be used as 3 individual CV controlled delay modules"

New nonlinearcircuits nullA2

nullA2 taster Published on Feb 1, 2017 cirtcele

"1st play with the NULL-A. It has 2 VCOs, state variable VCF, ladder VCF, S&H, 2 LFOs, frequency divider, 3 VCAs, Sloth chaos, ADSR, 4 stage sequencer with direction control, mixer, VC Delay and a headphone amp"

dual LFO & multiband distortion processor

Published on Mar 9, 2015 cirtcele

"Dual LFO with inbuilt difference rectifier, used with VCO and Multiband Distortion Processor. In the 2nd half, one LFO clocks the stepped out of the Sauce of Unce, which CVs the VCO"

nonlinearcircuits modded 4seq

Published on Aug 25, 2015 cirtcele

"4seq module modded to switch between different patterns"