So talking with a friend I decided to make a synth, a basic but nice one. So I thought why not? So I'll add my contribution to the APC history!
The Atari Punk Console has a long history so you can check it here.
I can tell you it was designed by the most famous Forrest M. Mims III
It is called the Atari Punk Console because of the stepped tone generated is like the sounds emitted by the original Atari video game system.