From Future Music Magazine:

The Roland TB-303’s place in the electronic music Hall of Fame is certain. Its central role in Acid House saw it used and abused for years to come. Here we show you how a variety of effect pedals can be used to replicate that gritty, experimental approach.

[youtube http://www.youtube.com/watch?v=69mFYvCbU9k&w=640&h=360]