vactrol based 3 channel muter / gater

"Пуск-3" is a 3 channel muter / gater based on handmaded vactrols with fast response.
The product works in two modes: instant and Latch, in any combination of channel-by-channel.
If there is no incoming signal, the input is normalized to 5V and the device can work as a gate trigger for external sources,
such as envelopes, drum modules, and so on.
As an easter egg, unit has two random algorithms from the P3PB. New varieties may be added in the future with new firmwares.