Q128 Switch

Basics
The Q128 contains 2 single pole double throw switches which are controlled together making a double pole double throw switch. The most common use of the switch is to route signals to various places under control of an oscillator. A simple On-Off function can also be performed by ignoring the B connector. Control of the switch can come from any voltage source including an oscillator, Keyboard Gate, sequencer, etc.

A low control input (~0 volts) sets the switches to the B position (LED on).
A high control input (~ 5 volts) (or no input) sets the switches to the A position.

Crossing Two Signals
Two signals can be crossed by patching them into the common connectors, then criss-crossing A and B signals, then taking one output from A and one from B. When switched, the 2 signals will be crossed.

Increasing Isolation
Electronic switches aren't perfect and when they're OFF they let through a very small amount of signal (20mv from a 10v PP input). Usually this isn't a problem, but if your patch requires more OFF isolation, connect the 2 switches in series which will reduce the 20mv signal to 5mv.