There are two different circuits in two cubes connected with a cable. Chaos are two oscillating circuits that modulate each other. The pitch can be manipulated by a photoresistor (LDR), and the pulse width by a potentiometer. The second potentiometer is used to set the voltage that supplies current to the oscillating circuit. This allows you to create versatile and very interesting sound. The other circuit is a simple amplifier with a speaker.
We built these cubes in the + TINKER TEC GIRLS + workshop at HSLU. For more information klick the link below.