[instrument/installation] 8-bit Woodtape Analog

8-bit Woodtape

8-bit Woodtape Analog, built using local wood material in Djerassi

On my first week in Djerassi Residency, I found out that lumbers is abundant in the area. The lumbers are going to be used as the material for fireplace during the winter. As someone from the tropical country, I’m unfamiliar with the use of woods for heating inside the house since it’s already hot in Indonesia. Since Laura Amador, the project manager of Djerassi said that we can pretty much use anything in the area, I decided to take one of the lumber to made an instrument.

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[instrument] Synth Dua Jari

synth dua jari

During 2014 presidential election of Indonesia, I’m against the candidate number one (Satu – in Indonesian). Why? He did a crime by kidnapping many activists during Indonesian reformation in 1998 in which 13 of them remain “missing”. So I made a support to the candidate number two (Dua – in Indonesian), Jokowi.

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[instrument] Dji Sam Soe Synth with Chaos Looper from SGMK

Dji Sam Soe Synth 100

Dji Sam Soe Synth 100, using the Dji Sam Soe box 100 year edition

An analog synthesizer I made using the Noise Looper circuit from SGMK (http://www.mechatronicart.ch/). I built two of this synth with different cans of Dji Sam Soe special editions. The circuit is using PT2399, a digital delay chip which you could get from the local electronic store in your city. Many information about PT2399 can be found here. Video, documentations and instructions are bellow.

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[instrument] Naniwa So Shi (Story From Osaka) Synthesizer

naniwaSOSHI

Naniwa So Shi mini sythesizer

A week ago, my good friend Geger gave me a tin box when we were cleaning his house. The box is a packaging for some sweets from Osaka Japan. My friend Sachiko translate the writing on the box. It says “Naniwa So Shi”, which means Story/Journey from Osaka. I really like the design, and how light the box is. So I decided to use it as the case for my mini analog synth.

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Atari Punk Console [tutorial]

Atari Punk Console is one of my all time favorite synth. It’s a combination of two 555 timer chip (or IC 556) oscillator which produced 2 layers of square wave sounds. Atari Punk Console (APC) is a name given by Kaustic Machines crew because of the “low-fi” sound it produced is similar to the games from Atari Consoles in the 80’s, with square wave similar from Atari 2600. In this tutorial I’m giving schematic, EagleCad files and PCB design of APC using NE556 Integrated Circuit. Check out the video above to hear how it sounds :)

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Simple White Noise Oscillator [tutorial]

I always wanted to make a white noise oscillator that is simple and powerful using easily found components in Indonesia. I received a schematic from a friend of mine Lintang Kenalirangkaipakai (he didn’t create it, he found it from the internet) and give it a try to see how it sounds. I have seen this schematic when I’m surfing the internet, however I never give it a try or maybe I was too lazy :P. The schematic is very simple, only using several part that in total cost you less than Rp.10.000,- and you can get it in any electronic store in your city. Since I like it, I thought I share it along with a PCB design, EagleCAD board and schematic files and layout so anyone can use it. Or you could just prepare your breadboard (like I did) if you’re not convinced with the sound on the video and want to check it out on yourself. :)

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Square, Integrator, Triangle, Sine (S.I.T.S) Oscillator [tutorial]

SITS noise-square

A noisy square produced from the simple oscillator using NE555 timer IC

From the simple oscillator using NE555 I posted before, we can make different wave signals. The simple oscillator produced a square wave signal in which the changes between 0 to 1 goes in an instant. To produce a different wave signal, we can put a passive filters to ‘shape’ the signal output. Passive filter consists a composition of Resistors and Capacitors in which they shave and cut the square wave output. In this post, I put a together an oscillator based on MK555 schematic which combine Square, Integrator, Triangle, Sine (S I T S – to make it easier :D) in one oscillator with various different passive filter.

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