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[PATCH] Minor layout tweaks Based on designs from: Skull & Circuits (https://www.skullandcircuits.com/vca-1-2/ - Moritz Klein (https://www.ericasynths.lv/shop/diy-kits-1/edu-diy-vca/ - Two CV inputs for each, allowing you to use the 4 pins (http://www.qingpu-electronics.com/en/products/WQP-PJ320E-177.html PJ31060-I 6pin SMD 3.5mm headphones jack (http://www.china-bsun.com/Product48/1577.html headphones jack plug stereo 3.5mm PJ31060-I PJ31060 TRS 3.5mm, horizontal, through-hole, with switch, https://www.cui.com/product/resource/sj1-353xng.pdf TRS 3.5mm, horizontal, through-hole, https://www.cui.com/product/resource/sj1-353xng.pdf TRS 3.5mm, horizontal, through-hole, https://www.cui.com/product/resource/sj1-353xng.pdf TRS 3.5mm, horizontal, through-hole, https://downloads.lumberg.com/datenblaetter/en/1503_07.pdf TRS audio jack horizontal A Series, 5 pole male XLR receptacle, grounding: mating connector shell to pin1 and front panel, steel retention lug, vertical PCB mount, color coding possible, https://www.neutrik.com/en/product/nc5fav-sw A Series, 3 pole XLR female receptacle with 6.35mm (1/4in) stereo jack and switching ground contact, vertical PCB mount, retention spring, https://www.neutrik.com/en/product/ncj10fi-v AA Series, 3 pole male chassis connector, black D-size flange, self tapping screw holes (A-screw), horizontal PCB mount, https://www.neutrik.com/en/product/nc3maav-0 AA Series, 3 pole male XLR receptacle, grounding: separate ground contact to mating connector shell and front panel, vertical PCB mount, https://www.neutrik.com/en/product/nc3fah2 A Series, 3 pole female XLR receptacle, grounding: mating connector shell and front panel, vertical PCB mount, color coding possible, https://www.neutrik.com/en/product/nc5fav-sw A Series, 5 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, tight but possible micro toggle: probably too short without extra spacers, use mini toggle pushbuttons: ample space above 11.75mm (existing 1p12t rotaries, use 11.25mm holes to PCB edge 9.12mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 25-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, male, pitch 2.41x2.54mm, pin-PCB-offset 9.4mm, see http://docs-europe.electrocomponents.com/webdocs/1585/0900766b81585df2.pdf 15-pin D-Sub connector horizontal angled 90deg THT female pitch 2.41x1.98mm pin-PCB-offset 3.0300000000000002mm mounting-holes-distance 25mm mounting-hole-offset 25mm 9-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, male, pitch 2.29x1.98mm, pin-PCB-offset 3.0300000000000002mm, distance of mounting holes 33.3mm, distance of mounting holes 47.1mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 15-pin D-Sub connector, horizontal/angled.

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