Audio Jack, 2 Poles (Mono / TS), Switched T Pole (Normalling Audio Jack, 2 Poles (Mono / TS) | | | | | | R1, R2, R23, R24 R3, R21, R27, R28 | 3 | A1M | **Potentiometer, 16 mm vertical pots. You can even use a ground plane 56529bef3a0c7d0b31cfccd6b6ce971fb35b4e9c Updates from real TL0x4, fix pots being backwards, tighten up schematic, fit letter instead of latch, https://www.neutrik.com/en/product/nc3fav1-0.