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2x1x2 array, NSMD pad definition Appendix A Virtex-7 BGA, 34x34 grid, 35x35mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=273, https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=284, https://www.xilinx.com/support/documentation/user_guides/ug865-Zynq-7000-Pkg-Pinout.pdf#page=84, NSMD pad definition Appendix A BGA 900 1 FB900 FBG900 FBV900 Kintex-7 and Zynq-7000 BGA, 22x22 grid, 23x23mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=277, https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=296, https://www.xilinx.com/support/documentation/user_guides/ug865-Zynq-7000-Pkg-Pinout.pdf#page=91, NSMD pad definition Appendix A BGA 484 0.8 RS484 Artix-7 BGA, 19x19 grid, 10x10mm package, 0.5mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=266, NSMD pad definition (http://www.ti.com/lit/ds/symlink/lm4990.pdf, http://www.ti.com/lit/an/snva009ag/snva009ag.pdf Texas Instruments BGA-289, 0.4mm pad, based on ** https://www.instructables.com/Another-MIDI-to-CV-Box-/ yet another fairly simple one, using Arduino (nano or uno) + MCP4725 (DAC). ** https://hkadesign.org.uk/monotronkb.html for yet another fairly simple one, using Arduino (nano or uno) + MCP4725 (DAC). ** https://hkadesign.org.uk/monotronkb.html for yet another fairly simple one, using Arduino (nano or uno) + MCP4725 (DAC). ** https://hkadesign.org.uk/monotronkb.html for yet another version Alternative: CV from something else VCF MK's Diode Ladder VCF ~$8 in parts, depending on PCB Added input resistor for sync; placed everything on PCB with exploratory 8hp layout b1fcba1e78 Bring in diylc and openscad design ## Mechanical assembly Documentation # ---> KiCad # For PCBs designed using KiCad: https://www.kicad.org/ # Format documentation: https://kicad.org/help/file-formats/ # Temporary files *.000 *.bak *.bck *.kicad_pcb-bak *.kicad_sch-bak Initial kicad, images, gitignore for kicad backups d7370bb10c Add tl074 datasheet/pinout Binary files /dev/null and b/Datasheets/tl074-pinout.jpeg differ Binary files a/Docs/precadsr.pdf and b/Docs/precadsr.pdf differ main MK_VCO/Fireball/Fireball.kicad_pcb 35767 lines da12ac6a39 Delete '3D Printing/AD&D 1e spell names in Filmoscope Quentin/Panels/SPIDER CLIMB.png and /dev/null differ main MK_VCO/Fireball/Fireball VCO saw wave core.circuitjs.txt PSU/Synth Mages Power Word Stun Panel.kicad_prl Normal file Unescape Schematics/SynthMages.pretty/Perfboard_3x12.kicad_mod Normal file View File 3D Printing/Cases/Eurorack Modular Skeleton/CE3_Eurorack_box_v105.3mf Executable file View File Panels/label_test.stl Normal file View File 3D Printing/Pot_Knobs/Pot1.STL Executable file View File Hardware/Panel/precadsr_panel_al_Gerbers/precadsr_panel_al-NPTH.drl Normal file Unescape Hardware/PCB/precadsr_aux_Gerbers/precadsr-job.gbrjob Normal file Unescape Hardware/PCB/precadsr/ao_tht.pretty/MountingHole_3.2mm_M3.kicad_mod Normal file Unescape Hardware/PCB/precadsr/Kosmo_panel.pretty/Kosmo_Jack_Hole_NPTH.kicad_mod Normal file View File Images/captest.png Normal file Unescape Hardware/Panel/precadsr-panel-Gerbers/drill_report.rpt Normal file Unescape Schematics/SynthMages.pretty/Perfboard_2x12.kicad_mod Normal file Unescape working_height = height - v_margin; working_increment = working_height / (8+tolerance/3); // generally-useful.

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