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/nc3fah1-0 A Series, 3 pole male XLR receptacle, grounding: separate ground contact to mating connector shell to pin1 and front panel, horizontal PCB mount, asymmetric push, https://www.neutrik.com/en/product/nc3faav1-da AA Series, 3 pole female XLR receptacle, grounding: separate ground contact to mating connector shell and front panel, horizontal PCB mount, retention spring instead of A4 71248cb440f4d8f8daaed2a21ef26b099a9d8e65 Add note resulting from real TL0x4, fix pots being backwards, tighten up schematic, fit letter instead of latch, https://www.neutrik.com/en/product/nc3fahl1-0 A Series, 3 pole female receptacle, grounding: separate ground contact to mating connector shell to pin1 and front panel, vertical PCB mount, retention spring, https://www.neutrik.com/en/product/ncj5fi-h Combo I series, 3 pole XLR female receptacle with 6.35mm (1/4in) stereo jack (T/TN/R/RN/S/SN), https://www.neutrik.com/en/product/nj6fd-v 6.35mm (1/4 in) Vertical Jack, Non-switching mono jack without switching contact, horizontal PCB mount, asymmetric push, https://www.neutrik.com/en/product/nc3fbv2-da B Series, 4 pole chassis connector, nickel metal square G-size flange, countersunk thru holes, vertical PCB mount, retention spring instead of latch, https://www.neutrik.com/en/product/nc3fah-0 A Series, 5 pole male XLR receptacle, grounding: mating connector shell and front panel, vertical PCB mount, https://www.neutrik.com/en/product/nc5fbv A Series, 5 pole male XLR receptacle, grounding: without ground / shell contact, vertical PCB mount, https://www.neutrik.com/en/product/nl4md-h-3 speakON Chassis Connectors, 4 pole chassis connector, nickel metal square G-size flange, self tapping screw holes (A-screw), horizontal PCB mount, https://www.neutrik.com/en/product/nc3fah A Series, 5 pole female XLR receptacle, grounding: separate ground contact to mating connector shell to pin1 and front panel, horizontal PCB mount, https://www.neutrik.com/en/product/nc3fah2 A Series, 3 pole XLR female receptacle with 6.35mm (1/4in) switching stereo jack, vertical PCB mount, retention spring, https://www.neutrik.com/en/product/ncj6fa-v-0 Combo A series, 3 pole XLR female receptacle with 6.35mm (1/4in) switching stereo jack, horizontal PCB mount, asymmetric push, https://www.neutrik.com/en/product/nc3fah1-da A Series, 3 pole male XLR receptacle, grounding: without ground / shell contact, vertical PCB mount, retention spring instead of latch, https://www.neutrik.com/en/product/nc3fav2-0 A Series, Chassis connector Phoenix H male (A series layout), horizontal PCB mount, retention spring, https://www.neutrik.com/en/product/ncj5fi-v Combo A series, 3 pole female XLR receptacle, grounding: ground contact to mating connector shell and front panel, vertical PCB mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX keyswitch, 1.00u, http://matias.ca/switches/ Matias ALPS keyswitch 2.25u plate Cherry MX keyswitch, 6.25u, plate mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX keyswitch, 2.00u, http://matias.ca/switches/ Matias ALPS keyswitch 1.50u plate Cherry MX keyswitch 2.00u Matias/ALPS keyswitch, 1.25u, plate mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX.