Showing posts with label Eurorack. Show all posts
Showing posts with label Eurorack. Show all posts

Saturday, 17 October 2015

DIY - Eurorack

This page is my index for all Eurorack related DIY.
It includes build notes, hacks, etc

GENERAL
+ Small Euro drum - version 1

Barton Musical Circuits (BMC).
+ BMC 037 - EuroBuffer (Buffered Multiple)
+ BMC - FM Drum - build notes

Bastl


Beast-Tek
 + Microbe 
 + Pixel Drum 

Befaco

Cat Full Of Ghosts
 
CGS
* Serge Resonant EQ/Filter - Euro format (CGS 202)
 

Division 6
+ Dual Sequencer

Doepfer
+ module 128 modification - Fixed filter bank

Duskwork

+ Faderbank -16n 
 
Greyscale

hEXINVERTER

Ian Fritz
 
Klee Sequencer

L1

Liquid Foam
 
Ljunggren Audio


LZX Video Industries
 + Function Generator - build pics & notes

LZX - Cadet
 + Cadet I - Video Sync Generator - Build notes
 + Cadet II - RGB Encoder - Build notes
 + Cadet III - Video input - build notes
 + Cadet IV - Dual Ramp generator - build notes
 + Cadet V - Scaler - build notes
 + Cadet VI - Fader - Build notes
 + Cadet VII - Processor -Build notes
 + Cadet VIII - Hard Key Generator - build notes
 + Cadet IX - VCO - build notes
 + Cadet X - Multiplier - Build notes

LZX - Castle
Introduction
00_000 ADC - Analog to digital converter
01_001 DAC - Digital to Analog converter
02_010 Clock VCO
03_011 Shift Register
04_100 Multi Gate
05_101 Quad Gate
06_110 Counter
07_111 Flip flops

Manhattan Analog
  + CVP (Control Voltage Processor)

 + Voltage memory - Meng Qi - build notes

Metromodular


 MI
+ Mutable Instruments - Grids Hack for clock & random gate.
+ Links - DIY build pics 

MFOS (Music from Outer Space)
+ Bi-polar Power supply

Music Thing Modular
 
Neutral Labs
 
NLC - Non Linear Circuits:
        + All NLC pages are here  
 
Ornament & Crime - O_C


Snazzy Effects
+ ArdCore -Installation Demo


Sonic Potions
 
ST-Modular


Steiner-Parker
Steiner-Parker MicroCon Voice - Eurorack - Build notes

SynthroTek  
 
 
 
 Westlicht

Zlob
Minimixer
Dual VCA
Dual VCO
Clock divider
Zlob SVF (State Variable Filter) - build notes

Mutable Instruments Grids - hack - adding clock & Random gate

It's Sat afternoon and we are feeling pretty good ...having each just consumed half a Kangaroo and two bottles of red wine.
The wine on the right is a 1990 vintage port from Steins in Mudgee NSW. If I remember correctly, they have a fabulous motorcycle museum there.


And on the left is a Tollana Cabernet Sav from 1995. (Eden Valley, South Australia). Both excellent wines !!!

In such a frame of mind there seems nothing better to do than hack a perfectly good Mutable Instruments
module.

Paul (Cobramatic) tells me it's a easy one and he won't even hold me responsible if I mess it up :-)

He must have really liked the wine I served.

Anyway, it turned out to be dead simple and I highly recommend this if you own a MI Grids.


There are 3 points on the back of the module: Random Gate, Clock & Ground.
Solder  a wire to each and the other ends to two jacks.
The ground of course is shared by both jacks.


Deciding where to mount the jacks is a bit tricky ... Lots of SMD components .... decided to place them
between the bottom two jacks on the left.

There you go!

We now have two new outputs ... for clock and random gate. Very useful.

..
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For more Euro DIY builds click here:
http://djjondent.blogspot.com.au/2017/12/diy-index.html
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Tuesday, 22 September 2015

The carriageworks gig - Cobramatic & Jondent - Live Recording

Thursday, 10th Sept, 2015.
The Carriageworks, Sydney.
https://en.wikipedia.org/wiki/Carriag...

Lots of fun and a awesome venue.
Our instruments consisted or two Buchla 200 roadcases (and a smattering of Eurorack).
The gig lasted for over an hour, but I've picked a small sample of under 7 mins to remember the night.

The visuals were all created using a LZX video Synthesizer

...

bUCHLA 200 meets LZX

Messing around on the Buchla 200

Some pics of the LZX setup.





Doepfer A-143-9 Quad LFO

......Doepfer A-110 Standard VCO. Syncs nicely with the LZX

Sunday, 6 September 2015

Hyper Wein - NLC - Build notes

These are the build notes for the nonlinearcircuits Hyper Wein eurorack module.


The HW is a hyper chaos module based around the Wein Bridge Oscillator with vactrol control.
The video above is a test of this hyperchaotic circuit in a x-y plotter.

When building this module use 1% tolerance resistors.

"It really justs gets into its groove and bounces around at 1Hz or so, with the vactrol control unsettling it ...sometimes". 
Andrew's build notes are here:
http://www.sdiy.org/pinky/data/Hyper%20Wien%20build%20notes.pdf

Headers first.
Resistors, diodes next.
Caps.

The vactrol ... I'm using a Silonex. NSL 32
The dot on the vactrol is the cathode of the LED side. On the PCB, K = cathode.

Next the pots & jacks:



I ended up using a 330ohm resistor for the LED resistor.


A footnote:
The hyper is a sensitive little thing.
Very much depends on components  which need to be very accurate. It has a very narrow range of action.


Initially, all I was getting were sine waves. Andrew suggested I try looking at the 680k and 33k resistors.


These are in series to give 713k, but in fact we really need 710k........705k is too low and you only get sine, same case for 720k.
Unfortunately that 710k also depends on other parts being accurate to their declared value.


Andrew suggest replacing the 33k with 30k, then try 27k.
I removed the 33K resistor put in a 50k trimpot and tried to dial in the action, cos it probably won't be exactly 710k.
Have your panel pots at about 5-6 when doing this.


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Electronic music at the Carriageworks, Sydney

Looking forward to seeing you all this Thursday (10th Sept 2015, 6pm)  in Sydney.
http://www.carriageworks.com.au/
About the Carriageworks (Wiki).


New Sound Waves is a collective of electronic musicians and video artists working primarily with modular
synthesisers. We meet regularly at 107 Projects in Redfern, and our members perform live around
Sydney and beyond.

The artists performing on Thursday night are:

-1
-1 is an electronic musician and producer based in Sydney, as well as the founder of the New Sound Waves
modular synth collective

Benjamin Kinsman 
Ben is an electronic musician, producer and sound designer from Sydney, with a life lived in a sea
of cables.

Patches
Patches creates unique experiences in electronic music, interactive media and film, improvising with analog synths and creating experimental performances by manipulating body sounds.

Cobramatic
Cobramatic is an electronic musician, producer and video maker based in Sydney. Utilising various traditional, and electronic instruments and devices, he creates, manipulate and mangles audio and video.

Unknownfunction
f(x) is an electronic musician/artist based in sydney attempting to deliver unique musical expression utilizing a variety of instruments.

Jondent
Jono is an artist & electronic musician. He began DJ-ing in the electro & deep house genre, but has evolved
by using vintage synthesizers such as the Buchla which encourage abstraction, experimentation & improvisation.

Tuesday, 1 September 2015

Vactrol Pill - NLC - Build notes

These are my build notes for the nonlinearcircuits Vactrol Pill module (eurorack format).
It's a very easy build  & there are no surface mounted components.

The vactrol can be home made if you like. Just a LED & a light sensitive resistor housed in a light-tight package is all you need. Andrew F has a page on how to make these.
http://nonlinearcircuits.blogspot.com.au/2015/08/diy-vactrols.html

Andrew's build notes are here:
http://www.sdiy.org/pinky/data/WAMOD%20PiLL.pdf

The Pill refers to a PLL or phase-locked loop. This type of circuit consists of a variable frequency oscillator and a phase detector. The signal from the phase detector is used to control the oscillator in a feedback loop
so that the phase of the oscillator is constantly matched to the phase of the incoming signal.
I usually start installation with headers (IC & power), then resistors & caps.

This module uses a 4046 chip.


I'm using a Silonex NSL-32 vactrol. They are cheap as chips. The white dot marks the cathode of the LED part of the vactrol. Andrew has labeled this as "K" on the PCB.


It's now time to install the 3.5mm jacks.

 Screw the panel in then solder the jacks


Don't forget to solder the ground tabs with scrap wire.
After soldering the LED you are done. :-) So easy !!!


If all is working, the LED should light up in sync with a gate signal. The top two inputs (in1 & in2) are for gates & CVs. The 3rd input (pm) is for audio.The audio signal is phase modulated by the PLL

There are 2 outs ... the "pm out" is of course the phase modulated version on the inputted audio.

Links
1. Building a VCO using a 4046.
2. The X-4046 VCO - Thomas Henry
3. Simple CD4046 VCO - electromusic
4. Muffs post
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Click here to return to the NLC Build Index:
http://djjondent.blogspot.com.au/2015/03/non-linear-circuits-ncl-index.html 

Sunday, 30 August 2015

303 acid mix - Eurorack & Buchla

Second patch for Carriageworks gig.


...


The 4MS Matrix mixer - a wonderful module.

The NonLinearCircuits ADSR312 - It's a envelope generator based on a Aries design 

The Intellijel Metropolis sequencer -- what's there not to love about this great machine.

Can't get enough of this 303

Thursday, 27 August 2015

Chopper/Bi-Di router - NLC build notes.

These are the build notes for the nonlinearcircuits Chopper / Bi-directional module. 
So what is it?
It's a eurorack format voltage controllable electronic switching module.

The bottom section is similar to your old fashioned gate controlled bi-directional router. Functionally, it behaves very much like the Serge triple bi-directional router, though the circuit is very different.

The top section is based on a 70's delta modulator, (at least in concept). Delta modulation (DM or Δ-modulation) is an technique of analog-to-digital and digital-to-analog signal conversion. It's used for information transmission where quality is not of primary importance.

The signals being switched are also sent through a comparator & they control the switching. Plus you can add CV to all of this. Cool !

Muff's thread is here:



Andrew's build notes are here:

Andrew's Blog:

 I have  2 versions of the PCB.
I'm currently building Version 2 (on the left).
Version 2 has corrections (mods) already done which you will read about in Andrew's build notes.
Mostly replacing some resistors (470K & 22K) & the addition of the 10K .



A 10 k resistor needs to be soldered from the left pad of the 470k resistor to +V, easiest is the closest pin of
the nearby transistor - the collector of BC547.

I've used two 68uf ceramics for the decoupling caps.
I've used 510 ohm SMD resistors for the  LED resistors.
You need to experiment with this. I might go to a 1K for the next build.


Mount pots & Jacks. I used a 1M & a 100K pot ... using this for CV.
Cool. Looks like it works. 


Links

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