His website: http://www.forrestmims.org/biography.html

One of his books (a cult-classic): the Engineer’s Mini-Notebook. The circuit diagram for what became the Atari Punk Console is on page 13 of the pdf (22 of the original).

engineers-mini-notebook-555-timer-circuits

And the Kaustic Machines version: http://compiler.kaustic.net/machines/apc.html