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To throw a fireball.png | Bin 26014376 -> 26031216 bytes // PCB holder pcb_holder(h=10, l=top_row-rail_clearance*2-15-thickness, th=1.15, wall_thickness=1); // lower h-rib reinforcer ## Photos [to be added] ## Documentation: * [Schematic](Docs/precadsr.pdf) * PCB layout: make power connection traces larger; MK uses a CA3080 OTA, an expensive and rare chip these days ($3/ea on amazon, maybe fakes) VCA MK's VCA Probably a straightforward build: one op-amp, four transistors and some supporting components. ~$6 in parts, depending on exact order number), See: http://katalog.we-online.de/em/datasheet/6941xx301002.pdf Compact Flash Card connector, normal polarization (https://multimedia.3m.com/mws/media/22424O/3mtm-cf-card-header-type-i-low-profile-surface-mount-ts0747.pdf SD, SMD, top-mount, push-push (https://www.hirose.com/product/document?clcode=CL0609-0004-8-82&productname=DM1AA-SF-PEJ(82)&series=DM1&documenttype=2DDrawing⟨=en&documentid=0000915301 SD Card Connector, Surface Mount, ZIF, 33 Circuits (http://www.molex.com/pdm_docs/sd/5022503391_sd.pdf), generated with kicad-footprint-generator Molex SlimStack Fine-Pitch SMT Board-to-Board Connectors, 501920-5001, 50 Pins per row (https://www.hirose.com/product/document?clcode=&productname=&series=DF11&documenttype=Catalog⟨=en&documentid=D31688_en), generated with kicad-footprint-generator ipc_noLead_generator.py LFCSP, 28 Pin (JEDEC MO-194 Var AC https://www.jedec.org/document_search?search_api_views_fulltext=MO-153), generated with kicad-footprint-generator Molex Mini-Fit Sr. Power Connectors, old mpn/engineering number: 1-770973-x, 7 Pins per row (https://www.molex.com/pdm_docs/sd/022057045_sd.pdf), generated with kicad-footprint-generator Molex SlimStack Fine-Pitch SMT Board-to-Board Connectors, 52991-0708, 70 Pins (https://www.molex.com/pdm_docs/sd/537480308_sd.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-114-02-xxx-DV-BE-A, 14 Pins per row (https://www.hirose.com/product/en/products/FH12/FH12-24S-0.5SH(55)/), generated with kicad-footprint-generator Tantalum Capacitor SMD 1210 (3225 Metric), square (rectangular) end terminal, IPC_7351 nominal, (Body size source: IPC-SM-782 page 80, https://www.pcb-3d.com/wordpress/wp-content/uploads/ipc-sm-782a_amendment_1_and_2.pdf), generated with kicad-footprint-generator Mounting Hardware, inside through hole 3.3mm, height 9, Wuerth electronics 9771110360 (https://katalog.we-online.com/em/datasheet/9771110360.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py FE Package; 16-Lead Plastic DFN (2mm x 2mm) (see Linear.

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