Atari Punk Console: Difference between revisions

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Atari Punk Console (view source)

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[[File:APC with 2 555 (pin out) and bridge added.png|thumb|400px|CircuitSchematic diagramfor ofa antwo 555 implementation of the Atari Punk Console]]
The '''Atari Punk Console''' (commonly shortened to '''APC''') is a popular circuit that utilizes two [[555]] timer ICs or a single 556 dual timer IC. The original circuit, called a "Sound Synthesizer", was published in a Radio Shack booklet: "Engineer's Notebook: Integrated Circuit Applications" in 1980<ref name="enica">[http://www.jameco.com/jameco/pressroom/punk.html Engineer's Notebook: Integrated Circuit Applications], Jameco</ref> and later called "Stepped Tone Generator" in "Engineer's Mini-Notebook – 555 Circuits" by its designer, [https://en.wikipedia.org/wiki/Forrest_Mims Forrest Mims].<ref name="emn">[https://web.archive.org/web/20130822030621/http://feenelcaos.org/wp-content/upload/Forrest-Mims-engineers-mini-notebook-555-timer-circuits-ra.pdf Mini-Notebook], Radio Shack, (archived)</ref> It was named "Atari Punk Console" (APC) by Kaustic Machines crew because its "low-fi" sounds resemble classic Atari console games from the 1980s, with a square wave output similar to the [https://en.wikipedia.org/wiki/Atari_2600 Atari 2600]. Kaustic Machines added a -4db line level output to the circuit which was originally designed to drive a small 8-ohm speaker.
 
Atari Punk console is an astable square wave [[oscillator]] driving a monostable oscillator that creates a single (square) pulse. There are two controls, one for the frequency of the oscillator and one to control the volume. The controls are usually [[potentiometers]] but the circuit can also be controlled by light, temperature, pressure etc. by replacing a potentiometer with a suitable sensor (e.g., photo resistor for light sensitivity). Most of the time there is also a power switch (often a toggle switch) and a volume knob.
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== External links ==
* ''[https://www.jameco.com/Jameco/workshop/diy/atari-punk-console.html Making Music with an Atari Punk Console]'' by Forrest M. Mims III, Jameco
* [http://web.media.mit.edu/~stefanm/HowTo/Electronics.html Original schematics]
* [http://compiler.kaustic.net/machines/apc.html Kaustic Machines] addedimplementation, awith linespeaker outchanged to theline APC]output
* [http://www.forrestmims.org/ Forrest M. Mims III] web page]
* [http://recompas.com/portfolio/the-voice-of-saturn-synthesizer-mk-i/ Voice of Saturn Synthesizer MK I], based on the APC and uses a vactrol for CV.
* [http://aronnelson.com/gallery/v/seljer/album114/ PCB layout for dual 555 version]
* [http://stuff.marmelos.com/atari_punk_console/ Page describing the circuit + schematic + video sample]
* [http://www.jameco.com/Jameco/PressRoom/punk.html?CID=punk Forrest M. Mims III Atari Punk Console Project description]
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