/ AO CV Alternative: CV from something else VCF MK's Diode Ladder VCF ~$8 in parts, depending on PCB sandwich, making some final-ish decisions about connecting to front panel and Pin 1, horizontal PCB mount, asymmetric push, https://www.neutrik.com/en/product/ncj6fa-v-da Combo A series, 3 pole female XLR receptacle, grounding: separate ground contact to mating connector shell and front panel, horizontal PCB mount, https://www.neutrik.com/en/product/nc4mav B Series, 3 pole XLR female receptacle with 6.35mm (1/4in) mono jack without switching contact, vertical PCB mount, retention spring instead of latch, https://www.neutrik.com/en/product/nc3faah1-0 AA Series, 3 pole XLR female receptacle with 6.35mm (1/4in) mono jack, switched, fully threaded nose, https://www.neutrik.com/en/product/nrj6hf Slim Jacks, 6.35mm (1/4in) stereo jack, unswitched, fully threaded nose, sleeve contact/front panel connection, https://www.neutrik.com/en/product/nrj6hf-1 Slim Jacks, 6.35mm (1/4in) mono jack without switching contact, vertical PCB mount, retention spring instead of latch, https://www.neutrik.com/en/product/nc4fah-0 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/nc5mbv speakON Combo, 2 pole chassis connector, nickel metal square G-size flange, self tapping screw holes (A-screw), vertical PCB mount, https://www.neutrik.com/en/product/nc4mav B 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-h-1 speakON Chassis Connectors, 4 pole chassis connector, nickel metal square G-size.