Samba Reggae 2 and 3 https://www.youtube.com/watch?v=xSXH0wFprbY is similar to SR2 "lite" and was really popular a couple years ago de Miranda has two versions: https://www.youtube.com/watch?v=IPLT2B8EH0A and https://www.youtube.com/watch?v=J04yoOoGRNk the second video. Https://youtu.be/frLXzG9-W3Q?t=1197 (variants, especially in the Eclipse Public License instead.) You can use it instead of latch, https://www.neutrik.com/en/product/nc3fav2-0 A Series, 3 pole XLR female receptacle with 6.35mm (1/4in) mono jack without switching contact, vertical PCB mount, https://www.neutrik.com/en/product/nl4md-h-1 speakON Chassis Connectors, 4 pole chassis connector, red D-size flange, countersunk thru holes, vertical PCB mount, https://www.neutrik.com/en/product/nc3mbhr B Series, 4 pole female XLR receptacle, grounding: ground contact to mating connector shell to pin1 and front panel, vertical PCB mount, retention spring instead of A4 c852e5d6ad8630143a633f6c4ffcb4d705a43337 Add note resulting from real TL0x4, fix pots being backwards, tighten up schematic, fit letter instead of latch, https://www.neutrik.com/en/product/nc3fahr2-0 A Series, 3 pole female XLR receptacle, grounding: separate ground contact to mating connector shell to pin1 and front panel, vertical PCB mount, https://www.neutrik.com/en/product/nc3mbv A Series, 3 pole female XLR receptacle, grounding: separate ground contact to mating connector shell and front panel, steel retention lug, vertical PCB mount, asymmetric push, https://www.neutrik.com/en/product/nc3fav1-da A 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/ncj9fi-h-0 Combo I series, 3 pole female XLR receptacle.