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BackBuild notes GitHub repository * [https://github.com/holmesrichards/precadsr](https://github.com/holmesrichards/precadsr ## Submodules This repo uses submodules aoKicad and Kosmo_panel. To clone: schematic start, and some example modules f80e4975fb checkpoint before trying to fit in glide controls More mounting hole 4.3mm no annular m2.5 iso14580 Mounting Hole 2.2mm, M2, ISO14580 mounting hole position tweaks Messing around with panel title fonts 62cb30efbf Initial kicad, images, gitignore for kicad backups MK VCO and Luthers Samba Reggae 1 is probably the most common samba reggae rhythm; it's a simple implementation. Can be done, but requires a lot of wiring and increases risk of noise on power rails. Things best left to external modules: - CV-controlled CV offset module - add a voltage to trigger steps. Replace C10 with 100K resistor, and bridge out R44 with a 7-segment display with LED and photoresistor 3 Lead Plastic Package OnSemi CASE 100CY, light-direction upwards, see https://www.everlight.com/file/ProductFile/ITR1201SR10AR-TR.pdf reflective opto couple photo coupler IR Receiver Vishay TSOP-xxxx, MINICAST package, see https://www.vishay.com/docs/82742/tsop331.pdf IR Receiver Vishay TSOP-xxxx MOLD Oscillator, DIP8, Large Pads, http://cdn-reichelt.de/documents/datenblatt/B400/OSZI.pdf Oscillator, DIP14, Large Pads, http://cdn-reichelt.de/documents/datenblatt/B400/OSZI.pdf Oscillator, DIP14, Large Pads, http://cdn-reichelt.de/documents/datenblatt/B400/OSZI.pdf Miniature Crystal Clock Oscillator EuroQuartz XO32 series, http://cdn-reichelt.de/documents/datenblatt/B400/XO32.pdf, 3.2x2.5mm^2 package SMD Crystal Oscillator Seiko Epson SG-8002LB https://support.epson.biz/td/api/doc_check.php?mode=dl&lang=en&Parts=SG-8002DC, 5.0x3.2mm^2 package SMD Crystal EuroQuartz MJ series http://cdn-reichelt.de/documents/datenblatt/B400/MJ.pdf, 5.0x3.2mm^2 package Miniature Crystal Clock Oscillator ECS 2520MV series, https://www.ecsxtal.com/store/pdf/ECS-2520MV.pdf Miniature Crystal Clock Oscillator Abracon ASV series, http://www.abracon.com/Oscillators/ASV.pdf, 7.0x5.1mm^2 package FN Series Crystal Clock Oscillator EuroQuartz XO53 series, http://cdn-reichelt.de/documents/datenblatt/B400/XO53.pdf, 5.0x3.2mm^2 package Miniature Crystal Clock Oscillator Abracon ASE series, http://www.abracon.com/Oscillators/ASEseries.pdf, hand-soldering, 3.2x2.5mm^2 package SMD Crystal Seiko Epson MC-306 https://support.epson.biz/td/api/doc_check.php?dl=brief_MC-306_en.pdf, 8.0x3.2mm^2 package SMD Crystal EuroQuartz EQ161 series http://cdn-reichelt.de/documents/datenblatt/B400/PG32768C.pdf, 3.2x1.5mm^2 package SMD Crystal Oscillator Seiko Epson SG-8002JC https://support.epson.biz/td/api/doc_check.php?mode=dl&lang=en&Parts=SG-8002DC, 10.5x5.0mm^2 package SMD Crystal Seiko Epson SG-8002JC https://support.epson.biz/td/api/doc_check.php?mode=dl&lang=en&Parts=SG-8002DC, hand-soldering, 5.0x3.2mm^2 package 14-lead dip package, row spacing 15.24 mm (600 mils 64-lead though-hole mounted DIP package, row spacing 8.61 mm (338 mils), body size (see http://omronfs.omron.com/en_US/ecb/products/pdf/en-a6s.pdf SMD 7x-dip-switch SPST KingTek_DSHP07TS, Slide, row spacing 7.62 mm (300 mils), SMDSocket, LongPads THT DIP DIL PDIP SMDIP 2.54mm 25.24mm 993mil 42-lead surface-mounted (SMD) DIP package, row spacing 7.62 mm (300 mils), http://multimedia.3m.com/mws/media/494546O/3mtm-dip-sockets-100-2-54-mm-ts0365.pdf 3M 28-pin zero insertion force socket, through-hole, row spacing 16.51 mm (650 mils), SMDSocket, LongPads 28-lead though-hole mounted DIP package, row spacing 7.62 mm (300 mils), https://toshiba.semicon-storage.com/info/docget.jsp?did=1421&prodName=TLP3021(S Toshiba 11-7A9 package, like 6-lead dip package for Kodenshi SG-105 with PCB trace layout created pull request 'Fix rail clearance issues, add PCB slot, more options for potentiometer spoke placement Fix rail.
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