dual Atari punk console

dual Stepped Tone Generator

the legendary Atari Punk Console
this 2 times with 4 CV's in controllable

by then the sound of chiptune or the Atari 2600
or a happy scream cat

Made in Netherlands
beloved in Japan

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 and later called "Stepped Tone Generator" in "Engineer's Mini-Notebook - 555 Circuits" by its designer, Forrest M. Mims III (Siliconcepts, 1984). It was named "Atari Punk Console" (APC) by Kaustic Machines crew because its "low-fi" sounds resemble classicAtari console games from the 1980s, with a square wave output similar to the 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 oscillatorand one to control the width of the pulse.

Nakojiru Gaijou
Cat Scratch Module
TAT-HSTA-02
Error Instruments

http://www.errorinstruments.com/a-41119079/new-eurorack-modular/dual-atari-punk-console-black/