Audio Switch 202

Analog Switch Module

The EMW AUDIO SWITCH 202 module is an audio frequency switch that selects which input will be routed to it's output based on the voltage of the CLOCK signal.
A CLOCK signal lower than 2.5V will select Input A while a CLOCK signal higher than 2.5V will select Input B.

When using the Audio Switch 202, you have the option to either use its internal clock (which can be controlled using the Frequency and A/B Time knobs) or patch an external clock signal into the CLOCK input jack.

This module can be used in many different ways. You could, for example, use a VCO with multiple outputs (such as the EMW VCO 104) and an Audio Switch 202 module to generate interesting and unique waveforms and timbres by simply patching 2 different waveforms into inputs A and B and patching the Square / Pulse waveform into the CLOCK input.

http://www.electronicmusicworks.com/eurorack/audio-switch-202.html