synth_tools

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Schematics and .ino file uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on EPCOS app note at http://www.cypress.com/file/140006/download DFN, 6 Pin (https://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/lfcspcp/cp_6_3.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py Plastic Small Outline (SN) - Narrow, 3.90 mm Body [QFN] (see datasheet at http://www.cypress.com/file/138911/download and app note at http://www.cypress.com/file/140006/download DFN, 6 Pin (https://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/ltc-legacy-dfn/(DCB6)%20DFN%2005-08-1715%20Rev%20A.pdf), generated with kicad-footprint-generator JST VH side entry Molex Pico-Lock horizontal Molex JAE 0.2mm pitch, 1mm overall height FFC/FPC connector, FH12-45S-0.5SH, 45 Pins per row (https://www.hirose.com/product/document?clcode=&productname=&series=DF11&documenttype=Catalog⟨=en&documentid=D31688_en), generated with kicad-footprint-generator Soldered wire connection, for 2 times 0.127 mm² wires, reinforced insulation, conductor diameter 0.5mm, outer diameter 1mm, size source Multi-Contact FLEXI-xV 1.5 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Molex PicoBlade series connector, 505405-1370 (http://www.molex.com/pdm_docs/sd/5054050270_sd.pdf), generated with kicad-footprint-generator Stocko MKS 16xx series connector, 502443-0870 (http://www.molex.com/pdm_docs/sd/5024430270_sd.pdf), generated with kicad-footprint-generator Harwin Male Horizontal Surface Mount (SMT), Audio Jack Connector (https://www.cuidevices.com/product/resource/sj2-359x-smt.pdf Korean Hroparts Elec PJ-320D-4A (https://datasheet.lcsc.com/lcsc/1810121716_Korean-Hroparts-Elec-PJ-320D-4A_C95562.pdf smt female jack horizontal A Series, 3 pole XLR female receptacle with 6.35mm (1/4in) mono jack, switched, with full threaded nose, sleeve contact/front panel connection, https://www.neutrik.com/en/product/nrj6hf-1 Slim Jacks, 6.35mm (1/4in) jack receptacle, horizontal pcb mount, replaces NL2MD-V, https://www.neutrik.com/en/product/nl2mdxx-v speakON Chassis Connectors, 8 pole chassis connector, black D-size flange, mirrored self tapping screw holes (A-screw), https://www.neutrik.com/en/product/nlt4md-v THT Mini XLR 5Pin right angle Surface-mount DC Barrel Jack 2mm or 2.5mm center pin, https://www.kycon.com/Pub_Eng_Draw/KLDX-0202-AC%20&%20BC.pdf power jack works physically for male connector from wall wart. Consider adding larger pads. Consider adding a switch of some that get squished or have excessive padding. This requires Futura font files. The Filmoscope Quentin typeface facet normal -9.480295e-01 4.671082e-03 3.181483e-01 facet normal -1.925631e-001 9.812846e-001 0.000000e+000 vertex -5.033025e+000 -4.995401e+000 9.983999e+000 vertex -4.455791e+000 3.434344e+000 1.747200e+001 facet normal 0.780252 -0.0331891 0.624584 facet normal -0.0914036 -0.463056 0.881604 vertex -5.06488 -4.7897 6.94018 vertex -0.282485 -7.01491 6.94563 vertex -7.15688 -0.119821 6.88072 vertex 5.06488 4.7897 6.94018 facet normal -0.0224971 0.0985154 -0.994881 vertex -1.8729 -9.81811 0.0484927 facet normal -0.92061 -0.302869 0.246468 vertex 5.60068 4.19817 7.78686 vertex -5.60181 -4.2532 7.5827 facet normal 0.956891 -0.290201 -0.0119544 vertex 2.67925 -1.10978 19 facet normal 0.0821247 -0.0559923 -0.995048 vertex 8.08467 -5.87688 0.0486652 facet normal 8.398417e-02 9.964670e-01 3.547823e-04 facet normal -4.323937e-002 -7.566889e-002 9.961951e-001 facet normal 0.471404 -0.875976.

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