OPTOTHING: Dual-channel passive optocoupler VCA/filter/low-pass gate (4HP - PCB/panel)

A PCB/panel set for the OPTOTHING optocoupler LPG🔗 module.

The schematic and BOM for this module can be found at https://github.com/yorkmodular/opto3.5🔗

100% through-hole build, and passive too so no power cables and whatnot required.