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A parametric OpenSCAD design that allows to generate CV, in particular for controlling VCO notes. The classic is called a "Baby 8", so called because it's a classic samba clave with rock/reggae rhythms on the circumference of the 600v monsters we've been using From 4c5e03f875a81278be4b8089dd10dd98b0c86e5d Mon Sep 17 00:00:00 2001 Subject: [PATCH] Add schematic, start on PCB Fireball/Fireball.kicad_sch | 4 .../PCB/precadsr_aux_Gerbers/precadsr-PTH.drl | 22 .../precadsr_aux_Gerbers/precadsr-job.gbrjob | 2 | 10k | Resistor | | | | C1, C11 | 2 | 10uF | Electrolytic capacitor | | R114 | 1 | Conn_01x10 | Pin header 2.54 mm spacing | | | | Tayda | A-1672 | | | J3 | 1 | SW_DPDT_x2 | Switch, single pole double throw, separate symbols K switch SPST angled PTS645VL83-2 LFS C&K Button tactile switch https://www.ckswitches.com/media/1973/ksc7.pdf C&K Switches 1P1T SMD PTS125 Series 12mm Tact Switch C&K Components, PTS 810 Series, Microminiature SMT Top Actuated, http://www.ckswitches.com/media/1476/pts810.pdf Light Touch Switch 0 Light Touch Switch, https://industrial.panasonic.com/cdbs/www-data/pdf/ATK0000/ATK0000CE28.pdf 0 4 2 Button_Switch_SMD SW_SPST_EVQPE1 Light Touch Switch, https://industrial.panasonic.com/cdbs/www-data/pdf/ATK0000/ATK0000C374.pdf SMD SMT ceramic resonator filter SMD Resomator/Filter Murata SFECV, http://cdn-reichelt.de/documents/datenblatt/B400/SFECV-107.pdf, hand-soldering, 4.5x2.0mm^2 package SMD Resomator/Filter Murata SFECV, http://cdn-reichelt.de/documents/datenblatt/B400/SFECV-107.pdf, hand-soldering, 7.9x3.8mm^2 package SMD Crystal Seiko Epson SG-210 https://support.epson.biz/td/api/doc_check.php?mode=dl⟨=en&Parts=SG-210SED, hand-soldering, 2.5x2.0mm^2 package SMD Crystal Oscillator Seiko Epson SG-8002CA https://support.epson.biz/td/api/doc_check.php?mode=dl⟨=en&Parts=SG-8002DC, hand-soldering, 14.0x8.7mm^2 package SMD Crystal Seiko Epson SG-8002CE https://support.epson.biz/td/api/doc_check.php?mode=dl&lang=en&Parts=SG-8002DC, hand-soldering, 3.2x2.5mm^2 package Abracon Miniature Ceramic Smd Crystal ABM3B http://www.abracon.com/Resonators/abm3b.pdf, 5.0x3.2mm^2 package 14-lead dip package, row spacing 8.9 mm (350 mils), SMDSocket, SmallPads 12-lead though-hole mounted DIP package, row spacing 8.9 mm (350 mils), body size (see http://www.kingtek.net.cn/pic/201601201417455112.pdf SMD 6x-dip-switch SPST Omron_A6S-610x, Slide, row spacing 6.73 mm (264 mils), body size 6.7x4.1mm (see e.g. Https://www.ctscorp.com/wp-content/uploads/209-210.pdf), LowProfile 6x-dip-switch SPST Copal_CHS-06B, Slide, row spacing 7.62 mm (300 mils 8-lead surface-mounted (SMD) DIP package, row spacing 7.62 mm (300 mils 5-lead though-hole mounted high-volatge DIP package (based on http://www.latticesemi.com/view_document?document_id=213 BGA 0.8mm 9mm 121 BGA-132 11x17 12x18mm 1.0pitch Altera BGA-144 M144 MBGA Altera BGA-153 M153 MBGA Altera UBGA U169 BGA-169 BGA-200, 14.5x10.0mm, 200 Ball, 12x22 Layout, 0.8x0.65mm Pitch, http://www.issi.com/WW/pdf/43-46LQ32256A-AL.pdf Altera BGA-256 M256 MBGA BGA-256, dimensions: https://www.xilinx.com/support/documentation/package_specs/ft256.pdf, design rules: https://www.xilinx.com/support/documentation/user_guides/ug1099-bga-device-design-rules.pdf Altera UBGA U324 BGA-324 BGA-624, 25x25 grid, 21x21mm package, pitch 0.4mm; see section 6.3 of http://www.st.com/resource/en/datasheet/stm32f103ze.pdf Lattice caBGA-381 footprint for ECP5 FPGAs, 27.0x27.0mm, 756 Ball, 32x32 Layout, 0.8mm Pitch, https://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/ltc-legacy-bga/05081600_0_bga49.pdf https://www.analog.com/media/en/technical-documentation/product-information/assembly-considerations-for-umodule-bga-lga-package.pdf BGA 324 0.8 CS324 CSG324 BGA 324 0.8 GateMate FPGA Maxim WLP-12, W121H2+1, 2.008x1.608mm, 12 Ball, 3x4 Layout, 0.5mm Pitch, WSON-8, http://www.ti.com/lit/ds/symlink/lm27761.pdf WSON 8 1EP ThermalVias WSON, 8 Pin (http://www.ti.com/lit/ds/symlink/iso1050.pdf), generated with kicad-footprint-generator.

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