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BackSo close to R26 - D36/R47 too close Testing before powering up: Clock In - U1-13 (can get at from top when assembled Stop Switch - 10 LEDs 3 sockets 6 sockets - One SPDT switch per step, to set output voltages. (10) - One per step, to enable/disable gate per step. (10 One potentiometer for internal clock rate. One potentiometer per step, to indicate current step. (10 One multi-pole rotary switch - 9.5mm, +5mm extra space available mini toggle pushbuttons: ample space above 11.75mm (existing 1p12t rotaries, use 11.25mm holes to PCB edge 11.32mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 15-pin D-Sub connector horizontal angled 90deg THT female pitch 2.29x1.98mm pin-PCB-offset 3.0300000000000002mm mounting-holes-distance 25mm mounting-hole-offset 25mm 15-pin D-Sub connector edge mount solder cup female x-pin-pitch 2.77mm mounting holes 33.3mm, distance of mounting holes to PCB edge 4.9399999999999995mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 15-pin D-Sub connector straight rugged MUSB D511 USB 2.0 Type B 10103594-0001LF, http://cdn.amphenol-icc.com/media/wysiwyg/files/drawing/10103594.pdf USB USB_B USB_Mini connector usb mini receptacle vertical Mini USB 2.0 Type B SMT Horizontal 5 Contacts (https://katalog.we-online.de/em/datasheet/65100516121.pdf Mini USB 2.0 Type C Plug Shenzhen Jing Tuo Jin Electronics Co 918-118A2021Y40002 ( https://datasheet.lcsc.com/lcsc/1912111437_Jing-Extension-of-the-Electronic-Co--918-118A2021Y40002_C399939.pdf ) also compatible with Korean HRO Parts Elec TYPE-C-31-G-06 USB Type-C Receptacle Hybrid USB TYPE C, VERT RCPT PCB, SMT, http://www.jae.com/z-en/pdf_download_exec.cfm?param=SJ117928.pdf USB C Type-C Receptacle Hybrid USB TYPE C, VERT RCPT PCB, SMT, http://www.jae.com/z-en/pdf_download_exec.cfm?param=SJ117928.pdf USB C Type-C Receptacle SMD USB 2.0 USB TYPE C, USB 2.0, SMT, https://www.jae.com/en/connectors/series/detail/product/id=91780 USB C Type-C Receptacle SMD USB Power-only Charging-only 6P 6C USB4135-GF-A 16-pin USB-C receptacle, USB2.0 and PD, 5A VBUS rating, https://datasheet.lcsc.com/lcsc/2211161000_HCTL-HC-TYPE-C-16P-01A_C2894897.pdf USB 3.0 type A right angle SPDT push button https://www.e-switch.com/system/asset/product_line/data_sheet/210/800U.pdf momentary / push-push button, h=17.5mm C&K PVA1 https://www.ckswitches.com/media/1343/pva.pdf momentary / push-push button, h=13mm C&K PVA2 https://www.ckswitches.com/media/1343/pva.pdf momentary / push-push button, h=23mm C&K PVA2 https://www.ckswitches.com/media/1343/pva.pdf right angle (source: https://www.cnctech.us/pdfs/C-ARA1-AK512.pdf USB C Type-C Receptacle SMD USB Micro-B Receptacle SMD USB Micro-B receptacle, through-hole, vertical, http://katalog.we-online.de/em/datasheet/614105150721.pdf usb micro receptacle vertical USB Micro-B receptacle, through-hole, vertical, http://katalog.we-online.de/em/datasheet/614105150721.pdf usb micro receptacle vertical USB Micro-B receptacle, horizontal, SMD, 10118194, https://cdn.amphenol-icc.com/media/wysiwyg/files/drawing/10118194.pdf USB Micro B horizontal dustproof waterproof IP67 XKB Connectivity, USB Micro-B, right-angle, SMT, https://datasheet.lcsc.com/lcsc/2204071530_G-Switch-GT-USB-7010ASV_C2988369.pdf USB Type B 10103594-0001LF, http://cdn.amphenol-icc.com/media/wysiwyg/files/drawing/10103594.pdf USB USB_B USB_Mini connector usb mini receptacle vertical USB Micro-B receptacle, through-hole, vertical, http://katalog.we-online.de/em/datasheet/614105150721.pdf usb micro receptacle vertical USB 2.0 16P 16C USB4105-15-A USB4105-15-A-060 USB4105-15-A-120 USB4105-GF-A USB4105-GF-A-060 USB4105-GF-A-120 USB Type B 10103594-0001LF, http://cdn.amphenol-icc.com/media/wysiwyg/files/drawing/10103594.pdf USB USB_B.
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