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Showing posts from February, 2013

Quick Tip XI : Eurorack Screws

Okay, this seems like pretty basic Eurorack knowledge, but every now and then I see this question popping up on several forums and sites.

It seems a lot of people run out of Eurorack mounting screws very often.
A lot of them don't seem to know what types are used and/or where to get them.
In Doepfer Euroracks standardized lens head screw DIN7985 M3x6 are used.
DIN is the German edition of ISO standards and
the ISO metric screw threads are the world-wide most commonly used type of general-purpose screw thread.

The 3 stands for the diameter of the wire, and 6 stands for the length of the screw... both in millimeters (mm).
For the Doepfer racks, don't use longer screws...

I got mine from a local hardware-store (GAMMA), and i guess you will be able to find some near you...
Of course there are many other types of mounting screws available that fit... in different shapes and colours, so the choice is yours.
Just Google "M3x6" and you will find plenty of options.

A tip from O…

Random Video: Automated Tape Delay/Reverse by Wouter van Veldhoven

Wouter van Veldhoven, a tape-addict and musician from the Netherlands, makes music using collected second hand materials including, cans, old tape recorders, cigarboxes, broken radios and toypianos.
He reworks them in experimental musical instruments and uses them as recording devices.
His music balances somewhere between dusty, lo-fi experimental ambient and jangly instrumentals, but recently he has also been delving into the realm of minimal techno.

His latest upload is made with a nice mix of Doepfer Eurorack and various tape-machines and sounds like it is influenced by the classic Dutch NatLab-engineers from  the early 60s.

Video: Automated tape delay/reverse " I adjusted a tape recorder in such a way its playing direction can be controlled from my Doepfer system, this combined with an extra tape recorder that both records and plays back enables delayed tape reversing in a live setting. Quite nice for doing some minimal techno thingies"
Find more about this project on …

Game on! Modular Battles

Last Friday i received a very interesting notification/invitation for a new initiative from The KlirrFaktor.
A challenge, with easy rules;
one module onlyno external CV, click or audiotrack must be no longer than 2 minstrack as video or audiono additional edits or effects It's too bad that i had other things planned this weekend, but the first modular battle took place without me and resulted in some really nice & crazy tracks.
Find all entries for the first round at: Modular Battle Part 1 “one module only”
Although he did not completely keep it under the 2-minute limit ;-) -my personal favorite was from Fi0cz and is made on a Makenoise DPO:

Video: The 1 module // no cv battle .My round . by Fi0cz


Looking back at round one... i don't think i could have done a better job with my pretty basic set of Doepfer modules.
The only thing i can think of now (after the first round) would be an experiment with my A-127 Triple VCF, where the first filter is resonating, fed back into the…

Korg Monotron Demo by PatchPierre

As most of you know, i bought a fully analog Korg Monotron -analogue ribbon synthesizer- a while ago.
I promised you to make a short demo of it as soon as i had the time, so here it is.

The Korg Monotron is a cheap (39 Euro) battery-powered synthesizer, but what a lot of fun i already had with this little thing.
It features one VCO, a real VCF (This true analog filter is taken from the classic MS-10 & MS-20 synthesizer) with Filter-Cutoff and Peak (resonance) Control.
An LFO with variable speed (and an LED that flashes in tandem) can be applied to the Pitch (VCO) or Filter(VCF)
*note: only the LFO>filter cutoff is shown in this video

Video: Korg Monotron -analogue ribbon synthesizer- demo by PatchPierre

" Created by PatchPierre
http://patchpierre.blogspot.nl/

Equipment used: Korg Monotron"

Random Video: Cumulus 1 [WIP] by Glitzerstrahl

Interesting noises from Glitzerstrahl this time... with video.
A work in progress with his eurorack modular synthesizer, find a full list of modules HERE

Video: Cumulus 1 [WIP] by Glitzerstrahl " The starting point of a track made entirely with my modular rack.
No MIDI or external sequencing but reverb was added while recording through Ableton Live.
The track is still being worked on so this video only shows the first version.
I'll continuously post videos as parts are added, and that way you can see how the track builds up.
In essence what you hear is built up by an XAOC Moskwa sequencer modulating a Pittsburgh filter cutoff that filters a set of 3 separately tuned Bubblesound VCOb oscillators.
A Pittsburgh mixer is manually manipulated to change the mix of the three oscillators, and the resonance, QVC and cutoff of the filter is also manually tweaked during the course of the track.
The Attack and Release of the envelope (of which there is only 1 (TipTop Z4000)) is set ran…

BookTip XIV: Electronica for Dummies (Dutch Edition)

Okay, a bit of a weird BookTip this time... at first sight. The For Dummies series is an extensive series of instructional/reference books which are intended to present non-intimidating guides for readers new to the various topics covered.
As of December 2012, over 1800 For Dummies titles have been published with editions in numerous languages.
This Electronica (electronics) edition (published in 2005 in multiple languages) is extremely useful for the beginning electronics DIY-ers (like me), and it has already been very helpful making thing more understandable. The book (416 pages) covers a whole range of subjects, from the basics, preparation, tools and safety-measures to easy-to-build small projects on a breadboard or with self-made printed circuit boards (pcb's). On your way through the book you'll learn everything about diodes, resistors, capacitors and reading schematics. It even has a robotics section... I learned a lot from this book so far, although i haven't even…

MAQ 16/3 Direction Via MIDI Demo by Nicholas Keller

An interesting video, posted by Nicholas Keller in the Doepfer A-100 group on Facebook shows something about the Doepfer MAQ 16/3 Sequencer that i never really noticed before. It seems that normally, the MAQ in forward mode would start from the last random step, what can really mess up your patterns. In his video Nicholas shows that, with some clever MIDI programming, it is possible to get your next forward pattern starting from step 1.
Video: Direction via MIDIdirection via midi from N K on Vimeo. " This video simply shows that it is possible to switch direction of an Doepfer MAQ16/3 sequence from random to forward with the forward section starting from step 1. Normally, the forward section would start from the last random step. Start from step 1 was achieved with a series of MIDI commands from DAW sequencer (in this case Ableton Live) sent to the MAQ."

Nicholas also added: "This video will probably be part of a future blog post of mine, as right now I am working on s…

Modulator Systems MS202 Voltage Attenuator / Foot Controller Demo

Another Eurorack controller by Modulator Systems in London, the company that makes and sells interesting accessories for Doepfer A-100 and compatible (eurorack) analog synthesizer systems.
This time they created a cheap, pressure-sensitive pad with a CV-output.
Sadly it doesn't send a Gate/Trigger signal though...

Video: Modulator Systems MS202 Voltage Attenuator / Foot Controller Demo
" The MS202 is a fabric-covered soft touch voltage attenuating pad which can be patched into any voltage source and destination on the Doepfer A100 and similar analog modular systems and synthesizers. The uses are only limited by your imagination but it can for example vary vibrato or filter modulation depth, allow through white noise in drum sounds, add random modulation to notes, allow extra sequencer notes to be triggered, and much more.

The MS202 can also be hit with drum sticks to vary drum synth sounds - though it only outputs a voltage, not a trigger or gate - and works with even greater …

Magnetic Table CV-Controller by Jon Sonnenberg

One of the most impressive alternative DIY-controllers i've seen this year is probably this next one.
This Magnetic Table CV-controller is made by Jon Sonnenberg, who has been creating music and been obsessed with electronic music for most of his life.
The design is based on a magnetic pendulum toy;
" The toy consisted of a dangling string with a magnet on the end of it; then it hovered over magnets on a table that either repelled or attracted the string magnet; the stringed magnet then maneuvers around in crazy patterns due to the position of the table magnets.

There are 2 control voltage outputs for this device; one for the X axis, and one for the Y.   They vary from 0 to 5 volts. These can be used to change any parameter in a synthesizer or effects system to make interesting sounds.   For instance, the X axis could control the pitch of an oscillator, while the Y axis could control the volume. Another example could be the X axis controls a delay time, while the Y axis con…