Switched T Pole (Normalling Audio Jack, 2 Poles (Mono / TS)"/>
Add note that C12 is optional; not needed if using real TL0x4, fix pots being backwards, tighten up schematic, fit letter instead of latch, https://www.neutrik.com/en/product/nc3faav2-0 AA Series, 3 pole female receptacle, grounding: mating connector shell to pin1 and front panel, horizontal PCB.