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/nc3fahl-0 A Series, 3 pole XLR female receptacle with 6.35mm (1/4in) stereo jack, horizontal PCB mount, https://www.neutrik.com/en/product/ncj6fi-v-0 Combo I series, 3 pole female XLR receptacle, grounding: separate ground contact to mating connector shell and front panel, horizontal PCB mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX keyswitch, ISO Enter, PCB mount, https://www.neutrik.com/en/product/nc3maah AA Series, 3 pole female XLR receptacle, grounding: separate ground contact to mating connector shell and front panel, vertical PCB mount, https://www.neutrik.com/en/product/nl4md-v speakON Chassis Connectors, 2 pole chassis connector, black D-size flange, countersunk thru holes, vertical PCB mount, https://www.neutrik.com/en/product/nc5mbv-sw B Series, 3 pole male XLR receptacle, grounding: separate ground contact to mating connector shell to pin1 and front panel: 9.8mm (alpha pots sliders: 3mm above panel, ample thunkicons: probably too short without extra spacers, use mini toggle switch ON-ON | | | | | R16, R18, R26 | 3 | 2N3904 | 0.2A Ic, 40V Vce, Small Signal NPN Transistor, TO-92 | | | R23, R24, R25, R27 Switch, triple pole double throw, separate symbols | | | | | | | | | | D6, D7 | 2 pin Molex connector 2.54 mm spacing KK254 Molex connector2 pin Molex connector 2.54 mm spacing 2 pin Molex connector 2.54 mm spacing | Tayda | A-804 | | | | J1 | 1 | 1 | SW_3PDT_x3 | Switch, triple pole double throw, separate symbols"/>
6.787009e-001 6.247017e-001 vertex 4.100003e+000.