EMS Audio Noise Source

This is my adaptation of the famous EMS VCS3 noise circuit (Dr. Who, Pink Floyd, etc …) // a very listenable noise as far as noise sources go … the circuit is tweaked to run on two 9volt batteries and can be successfully built using the most common parts available. The sudden on-off response of the tone control should remind you of some of the noise events heard on “Welcome to the Machine”