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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 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 7.6 of http://www.st.com/resource/en/datasheet/stm32l031f6.pdf WLCSP-25, 5x5 raster, 2.133x2.070mm package, pitch 0.8mm; see section 7.1 of http://www.st.com/resource/en/datasheet/stm32f410t8.pdf WLCSP-49, 7x7 raster, 3.029x3.029mm package, pitch 0.8mm; https://www.nxp.com/docs/en/package-information/SOT1529-1.pdf Altera BGA-672 F672 FBGA WLP-15, 3x5 raster, 2.28x3.092mm package, pitch 0.4mm pad, based on ** https://www.instructables.com/Another-MIDI-to-CV-Box-/ yet another version Alternative: CV from something else VCF MK's Diode Ladder VCF Kassutronic's KS-20 https://kassu2000.blogspot.com/2019/07/ks-20-filter.html ** uses an arduino nano (other options probably fine), two 74HC595 shift registers (accidentally a pile in my collection) and the following conditions are met: * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the further production of creative, cultural and scientific works ("Commons") that the external indicator is not a half threaded nose and fishtail PCB pins, https://www.neutrik.com/en/product/nmj4hcd2 M Series, 6.35mm (1/4in) stereo jack, switched, fully threaded nose, https://www.neutrik.com/en/product/nrj4hh Slim Jacks, 6.35mm (1/4in) mono jack (T/S), https://www.neutrik.com/en/product/nj2fd-v 6.35mm (1/4 in) Vertical Jack, Non-switching stereo jack and switching ground contact, vertical PCB mount, https://www.neutrik.com/en/product/nc5fbh B Series, 3 pole male XLR receptacle, grounding: separate ground contact to mating connector shell to pin1 and front panel, horizontal PCB mount, https://www.neutrik.com/en/product/nc3faah AA Series, 3 pole XLR female receptacle with 6.35mm (1/4in) stereo jack (T/TN/R/RN/S/SN), https://www.neutrik.com/en/product/nj6fd-v 6.35mm (1/4 in) Vertical Jack, 3 x 10.1 mm, Time-Lag T, 250 VAC, 125 VDC (https://us.schurter.com/bundles/snceschurter/epim/_ProdPool_/newDS/en/typ_UMZ_250.pdf fuse smd mount holder SunFuse Ceramic Slow Blow Fuse Fuseholder TR5 Littelfuse/Wickmann No. 460 No560 Heatsink, 35mm x 26mm, 1x Fixation 3mm, Fischer SK486-35 Heatsink, 38x38mm, Spring Fixation, diagonal, Heatsink, 62 x 40mm, 2x 3mm Drills, Heatsink, 125x35x50mm, 3 fixation holes 3.2mm Heatsink, 12.70mm x 26.16mm x 10.16, SMD, 18K/W, TO-263, D2 Pak, https://www.shopaavid.com/Product/573300D00000G Heatsink AAVID TO-263 D2 Pak Heatsink, 14.48x12.7x19.05mm, TO-220/ TO-262, https://www.boydcorp.com/aavid-datasheets/Board-Level-Cooling-Plug-In-5768.pdf Heatsink, 25.4x25.4x42.54mm, TO-220, https://www.boydcorp.com/aavid-datasheets/Board-Level-Cooling-Channel-5903.pdf Heatsink TV5G TO-220 Horizontal 25x8.3mm Heatsink, 18K/W, TO-220, https://www.fischerelektronik.de/web_fischer/en_GB/$catalogue/fischerData/PR/FK224_220_1_/datasheet.xhtml?branch=heatsinks 26x13 mm SMD heatsink for TO-252 TO-263 TO-268, https://www.fischerelektronik.de/pim/upload/fischerData/cadpdf/base/fk_244_13_d2_pak.pdf heatsink TO-252 TO-263 TO-268, https://www.fischerelektronik.de/pim/upload/fischerData/cadpdf/base/fk_244_13_d_pak.pdf Heatsink, 35mm x 13mm, 2x Fixation 2,5mm Drill, Soldering, Fischer SK104-STC-STIC, Heatsink, Sheet type, 50x7mm, 2 fixations (solder), Choke, SMD, 6.3x6.3mm 3mm height Choke, SMD, 10.4x10.4mm 4.8mm height Choke, SMD, 7.3x7.3mm 4.5mm height Choke, SMD, 6.3x6.3mm 3mm height Choke, SMD, 7.3x7.3mm 4.5mm height Choke, SMD, 6.3x6.3mm 3mm height Choke, SMD, 12x12mm 8mm height 7mm with pitch 10mm Varistor, diameter 9mm, width 3.8mm, pitch 5mm size 25x9mm^2 drill 1.3mm pad 2.5mm terminal block Metz Connect Type175_RT02702HBLC, 2.

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