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[Schematic](Docs/precadsr.pdf) * PCB layout: [front](Docs/precadsr_layout_front.pdf), [back](Docs/precadsr_layout_back.pdf) * [BOM](Docs/precadsr_bom.md) * [Build notes](Docs/build.md) How to use 7.5mm holes, not 6mm - alpha pots - 9.8mm, +2mm - rotary - 11.5mm, +3.5mm -- biggest by far, maybe 12.6mm? Alpha pots: barely enough to navigate fluently in preview mode. * @todo Provide an option to chamfer rather than round along the LEDs //outline of whole PCB cube([137.5, 97, 1], center=true); echo("Putting a hole for mounting screw: ISO 1481-ST 2.2x4.5 C or ISO 7049-ST 2.2x4.5 C (http://www.fasteners.eu/standards/ISO/7049/) || order number: 1924059 16A (HC Generic Phoenix Contact SPT 5/3-V-7.5-ZB 1719325 Connector Phoenix Contact, SPT 2.5/5-V-5.0-EX 1732522 Connector Phoenix Contact, SPT 5/6-H-7.5-ZB 1719231 Connector Phoenix Contact, SPT 5/3-H-7.5 Terminal Block, 1719309 (https://www.phoenixcontact.com/online/portal/gb/?uri=pxc-oc-itemdetail:pid=1719309), generated with kicad-footprint-generator crystal Epson Toyocom FA-238 series https://support.epson.biz/td/api/doc_check.php?dl=brief_fa-238v_en.pdf, hand-soldering, 3.2x2.5mm^2 package SMD Crystal HC-49-SD http://cdn-reichelt.de/documents/datenblatt/B400/xxx-HC49-SMD.pdf, hand-soldering, 11.4x4.7mm^2 package SMD Crystal Abracon ABM7, https://abracon.com/Resonators/abm7.pdf Abracon Miniature Ceramic Smd Crystal ABM3C http://www.abracon.com/Resonators/abm3c.pdf, 5.0x3.2mm^2 package Abracon Miniature Ceramic Smd Crystal ABM3 http://www.abracon.com/Resonators/abm3.pdf, 5.0x3.2mm^2 package Abracon Miniature Ceramic Smd Crystal ABM3 http://www.abracon.com/Resonators/abm3.pdf, hand-soldering, 5.0x3.2mm^2 package SMD Crystal SERIES SMD3225/4 http://www.txccrystal.com/images/pdf/7m-accuracy.pdf, 3.2x2.5mm^2 package SMD Crystal TXC 7A http://txccrystal.com/images/pdf/7a.pdf SMD Crystal SERIES SMD2016/4 http://www.q-crystal.com/upload/5/2015552223166229.pdf, 2.0x1.6mm^2 package SMD Crystal MicroCrystal CC8V-T1A/CM8V-T1A series http://www.microcrystal.com/images/_Product-Documentation/01_TF_ceramic_Packages/01_Datasheet/CC8V-T1A.pdf, hand-soldering, 2.0x1.2mm^2 package Ceramic Resomator/Filter Murata CSTCE, https://www.murata.com/en-eu/products/productdata/8801162264606/SPEC-CSTNE16M0VH3C000R0.pdf SMD SMT SPST EVQP2 0 4 2 Button_Switch_SMD SW_SPST_EVQP7A Light Touch Switch 0 4 2 Button_Switch_SMD SW_SPST_EVQP0 Light Touch Switch, https://industrial.panasonic.com/cdbs/www-data/pdf/ATK0000/ATK0000C374.pdf SMD SMT SPST EVQPUJ EVQPUA SMD.

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