L-1 Germanium VCA (Demo)

3: 1 (3 to 1) is a voltage controllable gate switch / mixer module. If the input signal is greater than 2.5V, the gate will be HIGH, and if it is less than 2.5V, the gate will be LOW.

When the switch is on the left, it is in the switch mode, and the output gate signal can be switched between IN1 to IN3 by the SEL knob and CV.

When the switch is on the right, it becomes a gate mixer (gate summer), and as the SEL knob and CV are increased, the input to be mixed changes to IN1 only, IN1 & IN2, IN1 & IN2 & IN3.In gate mixer mode, the output is a 5ms trigger signal.

The input range of SEL CV is 0-5V.