Circuit Control is a festival "for a creative use of the soldering iron" organised by Alwin Weber and Steffen Koritsch from Dresden.
The workshop was held October 1st till 5th at Zentralwerk* in Dresden. October 5th late night there was a Ambient Showcase in a basement of an occupied building near Bahnhof Neustadt and October 6th there was the final party in the bar of the old ballroom of Zentralwerk.
In 2011 I made an excursion with students of the University of Art and Design Linz to the first Circuit Control and since that time I have returned every year to solder, play live and to see what other sound-tool-hackers and inventors have created during the year. Many participants became friends and I invited some of them (Jördis Drawe, Uwe Schüler, Alwin Weber, Steffen Koritsch, Claudio Matina and Peter Heß) to Linz to the Art University to present their research, sound tools and know-how at my workshop "Labor Sound" (Sound Lab).
Claude Winterberg midified his "FlipSynth" and "4093 Step Synth" with an Arduino Micro. Alwin Weber presented his distortion-FX "Screamo" and the noisy "Touch Synth Deluxe", Steffen Koritsch presented the upgraded version of "ATiny Punk Console", the "Noisio Delay" and the "Photonotron" - a lightsensitive kind of Theremin, while Matthias Schmidt aka Curetronic presented the upgraded "Fon", a fully automatable 8 step sequencer & synth. Jo FRGMNT brought two very nice tools I have to solder the next time: "SNU" (SpecialNoiseUnit) & "fm transmit".
Schrägerunde distorted the air with "FeedbackHeaven" and Uwe Schüler was
working on kickdrums and snares.
What did I solder during my stay at CC18?!
In recent years I have soldered two "4093 Step Synth" and also two "MS20 HP-LP Filter" from Claude Winterberg and so it was clear to me that I would midi-fi his synths with an Arduino Micro. I added also Claude's "FlipFloater Delay" (Edition 2 of this series) and I soldered his new "FlipSynth" a 4093-4070 based synth with rhythm section and two oscillators. So I needed some time to prepare my stuff for the new setup but after a while everything worked fine and I was able to send midi signals to my new setup! I have to mention that Claude built a bigger setup and performed with it live at the final party of Circuit Control. A pure acid-techno-soundsystem with the extra fun factor.
I also soldered the upgraded version of the "Atiny Punk Console" and the "Bleepbot".
Liveshows at Circuit Control 2018
Alwin & Steffen organised the so-called Ambient Night in a basement of an occupied building near Bahnhof Neustadt. Alwin Weber aka "StÖRenFrieD" played live a set with ATiny Punk Console, his Screamo distortion and other stuff, while Steffen Koritsch with a musical partner (name of the band?) had a huge setup from guitar to ATiny to drumbox. FRGMNT did a short set with sounds so unique that I felt like I was dreaming. I also forgot what he used to create this aural orgasm. I lost the flyer of this hidden showcase so I forgot the name of the opening act.
"Krach der Roboter" from Berlin opened with his robot performance and music out of the modular system which grows every year. After Krach "Flip Floater" from Basel played with his midified-new-system (see picture above) a funky electro set. Then "Gelbart" from Berlin presented excellent videos with great music hard to describe in a range from Zappa to vaudeville and electro. Then "Stefan Tiefengraber" from Linz pushed the bass to the maximum just using his fingers in battery driven toy stuff. Best bass show ever with great videos just out of his analog audio signals. "SBZ" from Dresden played a phatt industrial electro set with extremely nice elecronic sounds. "Kasia Justka" from Berlin played a great set with self-built stuff and analogue synths and great analog visuals similar to those of Stefan. After Kasia the author, Wolfgang Dorninger aka "The Smiling Buddhas" played some techno stuff to start the dance party which was finished in a great way by "Lazenbleep" from London. A great party with visuals by 48hoch8 and StÖRenFrieD.
Circuit Control: http://www.circuit-control.de/
Circuit Control 2017 - a video documentary by Krautmovies:
Our mascot 2018:
Lazenbleep live at CC18: https://youtu.be/grQoV72Xr2E
The Smiling Buddhas live at CC18:
The ATtiny Punk Console by Steffen Koritsch has been presented at Circuit Control 2017 in Dresden, Germany where Steffen lives and works. He has a degree in fine arts but is working mainly in the field of sound art and electronics.
I met Steffen at Circuit Control for the first time about three years ago. At that time he was developing FX-pedals to expand his guitar sound. 2017, as a member of the Circuit Control team he decided to present something special for the community: The ATtiny Punk Console. I took one kit home with me and and ordered immediately a second when the first was soldered. Mine are generation 1 but meanwhile Steffen made some technical upgrades and created a fancy box for the ATPC.
The ATPC is an easy to build synthesizer-kit based on the ATtiny85 microprocessor which is one of the smallest but also powerful members of the ATMEGA family (you probably already know by Arduino). The ATPC squeezes out the most of this little beetle.
"The synth is equipped with 4 potentiometers with body-contacts to tweak the sound. It's powered by a center negative plug or 9-V battery. You can trigger events by a push-button or via the programmable sync in- or -out line. On the output side you'll find a variable low-pass filter and a volume controlled buffer stage to push out true 8-bit sound. Because of the parallel 3.5 mm and 6.3 mm jack plugs you are able to link them in line as well as to interconnect and synchronize with other gear." (Steffen on the ATCP)
What do I like is that I can programm my own tunes, can flash them on the ATiny and best I can sync many ATPC's. If you are familiar with programming Arduinos you can create your personal tunes. All you need to do is to use your Arduino as an in-system programmer (ISP). There is a lot of information in the internet about this topic (see link Flashing Code). Steffen made a kit to flash ATtiny84s or 85s. With this it's even more simple to transmit own code to these tiny microprocessors. Steffen presents on his homepage different tunes and explains how they work. My favorite is the Failure_Unit code.
Steffen sells ATtiny Punk Console kits quite cheap for 39€ and pre-assembled units for 59€. They all will reach you with an ATtiny85 chip pre-programmed with the code of your choice. An additional one will sets you back 5€. Arduino as ISP-programmer kits are also in stock, which can be purchased for 7€ without or 9€ with a blank ATt85. Send an email.
The Flip Floater Delay designed by Claude Winterberg (Basel, Switzerland) has been presented for the
first time at HOME MADE 2017 in Switzerland.
I met Claude Winterberg aka Flip Floater the first time at the Circuit Control Festival 2014 in
Dresden, Germany. Claude brought the "Step Synth", a nice 8-step sequencer with a built-in
CMOS-synth and nice features for sound manipulation to the festival. One year later Claude
presented a filter in the Korg MS-20 style at his workshop at Generate Festival 2015 in Tübingen,
Germany. I soldered four of them to have a stereo pair for the studio and for my live-setup. In 2017,
Claude brought the Flip Floater Delay (FFD) to the Circuit Control Festival, which immediately set
me on fire and I started soldering the delay right away. A few days later, I used the FFD right in my
Claude, do you use the Flip Floater Delay (FFD) in your live set? If so, in what nice cases can we
see the delay?
"Basically, the FFD is standard in each device of mine. The complexity of the FFD depends on the
synth. I use the fully bent Flip Floater Delay - your version - in my new live ambient music set,
which I am currently working on. The most complex version of FFD is installed within my Atari
Why did you develop your own delay? What did you miss with other delays?
"The PT2399 Delay is the simplest delay chip available. I liked the sound from the beginning. I also
use it often as a reverb replacement for short reverb. As a circuit bender and developer I always
have the urge to tease out something else that was not intended."
What does the technical structure look like?
"The delay is the standard circuit as shown on the data sheet plus bendings. Most effects occur
when a resistance is hung between the decoupling capacitors."
Why did you add these nice features to the FFD like the drone function or this granular sounding
"These are characteristic effects of the chip. The possibilities are complex and often sound similar
but not the same. In the end I had to decide which bendings are the best for me."
Flip Floater Delay In Action
You can contact Claude Winterberg aka Flip Floater through email
You can book Claude Winterberg for a workshop and/or Flip Floater as live act.
The series "The Circuit Controllers" continues monthly on Electronic Cottage. I will only present
sound devices that I have soldered myself and of developers I know personally and appreciate as
Thanks for your interest and feedback, Wolfgang
Next edition: SCREAMO, a distortion fx designed by Alwin Weber (Dresden, Germany)
Claude Winterberg - http://flipfloater.net/
Wolfgang Dorninger - http://dorninger.servus.at/
Flip Floater live at Circuit Control 2014 at Ostpol, Dresden
Chaos Oszillator designed by Uwe Schüler (Kulturgüterschuppen Dusslingen, Germany) for Circuit Control DIY Soldering Festival at Ostpol (Dresden, Germany) June 2011.
Description of the circuit by the designer
A square wave generator consists of 2 CMOS inverters with variable frequency ("tone frequency") and is connected to an adjustable stabilized voltage of about 1 to 5 volts ("supply voltage control") and a variable internal resistance of 0 to 100 kOhm ("bad battery") and an adjustable filter constant ("power supply filter"). This results in feedbacks on the operating voltage, which lead to unstable and chaotic oscillations.
"Normally, measures are taken to keep electronic circuits stable, including stabilization of the operating voltage, decoupling capacitors, and low-impedance leads to the consumption points," says Uwe Schüler, and if these rules are disregarded, then you can freak around with the most vital sounding synth you can imagine. I got experienced and jammed with the Chaosz for weeks. I soldered some more units with different modificatios. Best is the original version, the Ostpoti by Uwe. Why Chaosz sounds so great is easy to explain: Uwe has spent a lot of effort to produce a maximum unstable and dirty power supply instead of developing a clean standard oscillator. This reverse path strategy masters the studied electronics engineer Uwe Schüler perfectly and tempts the possibilities to the maximum.
I created 90% of the sounds for "2nd Movement" ("Analoge Systeme", CD, base, 2016) with the Chaosz, also the drum sounds. Only the the polyphonic soundscapes come from another analogue synth. The live session with the Chaosz took approximately 2 hours, the editing of the sounds 2 days and the music was finished in 4 hours.
The series "The Circuit Controllers" continues monthly on Electronic Cottage. I will only present sound devices that I have soldered myself and of developers I know personally and appreciate as friends.
Next edition: FlipFloater Delay from Claude Winterberg (Basel, Switzerland)
Soldering is the new hometaping