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1 6.38819 12.8541 vertex 1 6.3311 13.3597 vertex -1 7.29533 6.97071 vertex -1 6.92771 7.89317 vertex -1 7.30206 6.90928 vertex -1 5.78941 6.73694 vertex 1 5.39134 21.8333 facet normal 3.946984e-001 -6.737715e-001 6.246960e-001 vertex -3.471306e+000 2.686626e+000 2.488700e+001 facet normal 3.508231e-001 6.139407e-001 7.071068e-001 vertex -1.634814e+000 -5.008020e+000 2.488700e+001 facet normal 0.468624 0.876745 0.108209 vertex -4.84143 3.23494 21.335 facet normal -4.395878e-001 7.536201e-001 4.886914e-001 vertex 2.070399e+000 -3.554108e+000 2.484855e+001 facet normal 0.464833 -0.31635 -0.826954 vertex -2.0532 -2.04871 18.9333 facet normal -0.547916 0.449666 0.705399 facet normal 0.828719 -0.0816185 0.553682 facet normal -0.989341 -0.0974419 0.108207 facet normal 2.057506e-13 -1.000000e+00 -5.400756e-13 vertex -1.054006e+02 9.695134e+01 1.128175e+01 facet normal -2.70719e-05 -0.113218 0.99357 vertex 0.0667658 7.10941 6.88733 facet normal 2.096598e-001 3.669046e-001 9.063243e-001 vertex -1.681371e+000 -5.089495e+000 2.494118e+001 facet normal 0.260571 -0.962888 0.0703571 facet normal -7.614451e-01 -5.127838e-01 3.965528e-01 facet normal 0.767815 -0.63438 0.0895698 vertex -0.759029 -6.58293 7.7465 facet normal -0.545284 -0.816081 -0.191512 facet normal 4.323983e-002 7.566972e-002 9.961950e-001 facet normal -1.613712e-14 -3.046341e-14 1.000000e+00 facet normal 9.999901e-001 4.452774e-003 0.000000e+000 facet normal -0.875976 -0.471404 0.102197 facet normal 4.084288e-01 9.127902e-01 -0.000000e+00 facet normal -0.471394 0.881923 0 vertex -9.8813 2.36142 2.19603 vertex -9.99456 1.98804 2.19603 vertex -3.87041 -9.34401 2.58057 facet normal -2.880153e-004 -5.040268e-004 -9.999998e-001 ## 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&lang=en&documentid=0000915301 Hirose FH41, FFC/FPC connector, FH12-28S-0.5SH, 28 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xxx-dv-xx-xx-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-dv-footprint.pdf), generated with kicad-footprint-generator Molex Nano-Fit Power Connectors, 43915-xx14, With thermal vias in pads, 2 Pins (http://www.farnell.com/datasheets/2157639.pdf), generated with kicad-footprint-generator Resistor SMD 0612 (1632 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 ipc_noLead_generator.py LFCSP, 16 Pin (https://www.ti.com/lit/ds/symlink/tlv9064.pdf#page=44), generated with kicad-footprint-generator Molex 734 Male header (for PCBs); Straight solder pin 1 x 1 mm, 734-141 , 11 Pins per row (http://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=82181_SOFTSHELL_HIGH_DENSITY&DocType=CS&DocLang=EN), generated with kicad-footprint-generator Molex Mini-Fit Sr. Power Connectors, old mpn/engineering number: 5569-18A1, example for new part number: A-41792-0013 example for new part number: 09-65-2058, 5 Pins per row (http://www.molex.com/pdm_docs/sd/1053091203_sd.pdf), generated with kicad-footprint-generator JST SHL series connector, SM03B-ZESS-TB (http://www.jst-mfg.com/product/pdf/eng/eZE.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective.

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