The Benjolin is a relatively simple but wonderfully clever analog, complex sound generator designed by synth pioneer Rob Hordijk.
<img src="http://web.me.com/klangbureau/DIY/Benjolin_files/WS-kits-2.jpg" alt="" title="IMG_1451" width="1000" height="666" class="alignleft size-full wp-image-541" />
Here's what Rob has to say about the Benjolin on his <a href="http://web.me.com/klangbureau/DIY/Benjolin.html">website</a>.
<em>"The Benjolin is a ‘noise box’ that is ‘bent by design’, meaning that it always has a definite amount of unpredictability while it is still intuitive to play. The Benjolin features two eighteen-octave range voltage controlled oscillators that drive a ‘rungler’ circuit, circuitry that in essence uses a special interference technique feeding back into the oscillators to force them into wild chaotic behaviour.
A special slightly chaotic filter is both excited and modulated by the signals from the rungler circuitry processes, producing sounds between fat drones to grungy noise havoc." </em>