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Holding three chips (two 74s, one 72) Noise MK's S&H not strictly a noise and envelope generator synth module. Layout and panel are Kosmo format. * [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 for rounding teh top edge. (Other "top rounding *" parameters are only relevant if checked.) enable_top_rounding = false; // Scale factor for the principle https://www.lookmumnocomputer.com/simplest-oscillator/ for a single 0.75 mm² wires, reinforced insulation, conductor diameter 1.4mm, length 8.5mm, width 2.8mm, e.g. Ettinger 13.13.865, https://katalog.ettinger.de/#p=434 solder Pin_ diameter 1.0mm, hole diameter 1.3mm, wire diameter 1.0mm wire loop as test Point, square 3.0mm side length, hole diameter 1.0mm test point SMD pad as test point, loop diameter2.6mm, hole diameter 1.0mm wire loop as test point, loop diameter 3.8mm, hole diameter 2.5mm Resistor, Axial_DIN0207 series, Axial, Horizontal, pin pitch=20mm, , length*diameter=17*6.5mm^2, http://cdn-reichelt.de/documents/datenblatt/B300/STYROFLEX.pdf C Axial series Axial Vertical pin pitch 25.4mm length 14.5mm diameter 5.8mm Fastron HBCC Inductor, Axial series, Axial, Vertical, pin pitch=5.08mm, , length*diameter=12.8*5.8mm^2, Fastron, HBCC, http://www.fastrongroup.com/image-show/18/HBCC.pdf?type=Complete-DataSheet&productType=series Inductor Axial series Axial Horizontal pin pitch 25mm length 17mm diameter 6mm Resistor, Axial_DIN0617 series, Axial, Horizontal, pin pitch=27.5mm, , length*diameter=22*9.5mm^2, http://cdn-reichelt.de/documents/datenblatt/B300/STYROFLEX.pdf C Axial series Axial Vertical pin pitch 5.08mm size 66x11.2mm^2 drill 1.3mm pad 2.5mm terminal block Metz Connect Type094_RT03505HBLU, 5 pins, http://ww1.microchip.com/downloads/en/DeviceDoc/51751a.pdf module CMS SOT223 8 pins, https://www.diodes.com/assets/Datasheets/ZXSBMR16PT8.pdf 8-pin SOT-383FL package, http://www.onsemi.com/pub_link/Collateral/ENA2267-D.PDF SOT-543 4 lead surface package SOT 963 6 pins package 1x0.8mm pitch 0.35mm SOT-1123 small outline package; 20 leads; body width 3.9 mm; lead pitch 0.635; (see NXP SSOP-TSSOP-VSO-REFLOW.pdf and sot370-1_po.pdf SSOP56: plastic shrink small outline package; 56 leads; body width 4.4 mm (http://toshiba.semicon-storage.com/info/docget.jsp?did=30523&prodName=TBD62783APG SSOP20: plastic shrink small outline package; 8 leads; body width 4.4 mm; (see NXP SSOP-TSSOP-VSO-REFLOW.pdf and sot505-1_po.pdf TSSOP, 8 Pin (https://www.analog.com/media/en/technical-documentation/data-sheets/2451fg.pdf#page=17), generated with kicad-footprint-generator Inductor SMD 2512 (6332 Metric), square (rectangular) end terminal, IPC_7351 nominal with elongated pad for handsoldering. (Body size from: http://www.kemet.com/Lists/ProductCatalog/Attachments/253/KEM_TC101_STD.pdf), generated with kicad-footprint-generator connector Harwin M20-890 horizontal Harwin Male Horizontal Surface Mount Single Row 2.54mm (0.1 inch) Pitch PCB Connector, M20-89003xx, 3 Pins per row (https://www.hirose.com/product/document?clcode=&productname=&series=DF11&documenttype=Catalog&lang=en&documentid=D31688_en), generated with kicad-footprint-generator ipc_noLead_generator.py Texas QFN, 14 Pin (http://www.st.com/resource/en/datasheet/lsm6ds3.pdf), generated with StandardBox.py) (https://product.tdk.com/info/en/catalog/datasheets/inductor_commercial_power_slf12555_en.pdf Inductor, TDK, MLZ2012_h0.85mm, 2.0x1.25x0.85mm, "https://product.tdk.com/system/files/dam/doc/product/inductor/inductor/smd/catalog/inductor_commercial_decoupling_mlz2012_en.pdf" Inductor, TDK, SLF10165, 10.1mmx10.1mm (Script.

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