Mini VCA v2 - Passive vactrol based VCA/gate - 0HP

Add a VCA anywhere in any patch, seriously, just plug it in and go. This tiny VCA eliminates the need for extra patch cables or a separate module, simply add it to any pre existing patch. Middle input is for control voltage, the remaining two can be used as input/output in either direction. 2022 update improves on the responsiveness and makes the VCA capable of shorter "plucky" effects. These are all made to order by hand, each VCA contains a DIY optocoupler.