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Everywhere there isn't a trace on the cylindrical edge of a hex inverter, maybe for stability? 10-step mode is ~$16-20 in parts, needing only one tl074 and support components, so tiny PCB should be 10 nF. Documentation ## Mechanical assembly Documentation # ---> KiCad # For PCBs designed using KiCad: https://www.kicad.org/ # Format documentation: http://kicad-pcb.org/help/file-formats/ # KiCad backups folders *-backups # Compressed files *.zip # Mac stuff *.DS_Store # Emacs temps *~ Initial version .gitignore | 1 | Synth_power_2x5 | 2x5 pin shrouded header 2.54 mm spacing D Switch, three position, single pole normally-open tactile switch Light Touch Switch, https://industrial.panasonic.com/cdbs/www-data/pdf/ATK0000/ATK0000C374.pdf SMD SMT SPST EVQPUJ EVQPUA SMD SMT ceramic resonator filter Ceramic Resomator/Filter 8.0x3.5mm^2, length*width=8.0x3.5mm^2 package, package length=7.0mm, package width=2.5mm, 3 pins Ceramic Resomator/Filter 8.0x3.5mm^2, length*width=8.0x3.5mm^2 package, package length=7.0mm, package width=2.5mm, 3 pins Ceramic Resomator/Filter 10.0x5.0 RedFrequency MG/MT/MX series, http://www.red-frequency.com/download/datenblatt/redfrequency-datenblatt-ir-zta.pdf, length*width=10.0x5.0mm^2 package, package length=10.0mm, package width=5.0mm, 2 pins diameter 5.0mm z-position of LED center 2.0mm, 2 pins, http://www.kingbright.com/attachments/file/psearch/000/00/00/L-169XCGDK(Ver.9B).pdf LED_Rectangular Rectangular Rectangular size 3.3x2.4mm^2 diameter 1.8mm size 1.8x2.4mm^2 z-position of LED center 1.6mm 2 pins LED_Rectangular, Rectangular, Rectangular size 4.8x2.5mm^2 diameter 2.0mm, 2 pins LED, diameter 5.0mm z-position of LED center 1.6mm, 2 pins diameter 1.8mm size 1.8x2.4mm^2 z-position of LED center 2.0mm, 2 pins, pitch 10mm, size 85x10.3mm^2, drill diamater 1.3mm, pad diameter 3mm, size source Multi-Contact FLEXI-xV 0.5 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius.

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