synth_tools

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0.560085 0.46962 vertex -6.28393 -6.28393 5.07603 facet normal -1.934024e-01 9.811195e-01 3.622710e-05 vertex -9.897102e+01 1.059168e+02 4.255000e+01 facet normal -3.566373e-01 9.342428e-01 3.501715e-04 vertex -1.005052e+02 1.053817e+02 2.655000e+01 facet normal -0.0817958 -0.0819182 -0.993277 facet normal 0.0982303 0.0149446 0.995051 vertex -7.75279 -1.99403 19.9467 vertex -7.73568 2.38614 19.9509 facet normal -3.261675e-01 -5.590515e-03 -9.452954e-01 vertex -1.056436e+02 9.695134e+01 1.279254e+01 facet normal 0.0975625 0.989331 0.108193 facet normal -0.479365 -0.871967 0.0994153 vertex -4.28661 6.75462 20 facet normal -2.011668e-15 -8.236081e-17 -1.000000e+00 facet normal 0.0813397 -0.0812122 0.993372 vertex 4.29176 -4.58792 7.81747 facet normal 0.295598 0.346102 0.890413 facet normal 0.0331712 0.780265 0.624569 facet normal 3.874186e-001 6.779824e-001 6.246973e-001 facet normal -0.478901 -0.594398 0.646022 facet normal 3.861513e-001 6.787009e-001 6.247017e-001 vertex 4.100003e+000 -1.657553e+000 2.484855e+001 facet normal -0.0221424 0.0970097 -0.995037 facet normal 4.54538e-07 -0.115783 -0.993275 vertex -5.40722 0.82619 21.8351 vertex 5.38893 1.02637 21.833 vertex 3.03604 4.44467 21.8214 facet normal 0.622313 0.758301 0.19418 facet normal 0.499998 -0.866027 1.12546e-07 facet normal 0.881936 0.471369 0 facet normal 0.0458387 -0.92006 0.389086 facet normal 0.024393 -0.106447 0.994019 facet normal -4.931766e-001 -8.630599e-001 1.091071e-001 facet normal 0.264256 0.161947 0.950759 facet normal -0.114495 -0.30557 0.945261 facet normal 0.801144 -0.59432 -0.0703636 facet normal -4.434096e-01 -0.000000e+00 -8.963191e-01 vertex -1.048734e+02 9.665134e+01 1.245949e+01 vertex -1.051080e+02 9.665134e+01 1.257556e+01 vertex -1.053448e+02 9.665134e+01 1.268330e+01 facet normal -0.491817 -0.403621 0.771496 vertex -4.7566 -7.11876 5.56266 facet normal -0.747986 0.192839 0.635083 facet normal 9.938607e-001 4.750866e-003 1.105365e-001 vertex -5.001358e+000 -1.090476e+000 2.470218e+001 facet normal 0.0819011 -0.0819033 -0.993269 facet normal -0.462456 0.449684 0.764146 facet normal 4.328590e-001 7.575036e-001 4.886935e-001 vertex -2.718651e+000 -3.164811e+000 2.484855e+001 facet normal -2.880153e-004 -5.040268e-004 -9.999998e-001 ## Documentation: * [Schematic](Docs/precadsr.pdf) * PCB layout: [front](Docs/precadsr_layout_front.pdf), [back](Docs/precadsr_layout_back.pdf * [How to use](Docs/use.md 96f746fa2d Final tweaks, version submitted to JLCPCB on 20240124 Experimenting with more panel layout ideas Initial stab at a 10-step sequencer (up to 10 Alternative: Midi -> CV Alternative: CV from something else VCF MK's Diode Ladder VCF ~$8 in parts, mostly down to PCB edge 9.12mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 9-pin D-Sub connector horizontal angled 90deg THT male pitch 2.29x1.98mm mounting holes to PCB edge 4.9399999999999995mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 44-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, male, pitch 2.29x1.98mm, distance of mounting holes 25mm, distance of mounting holes to PCB edge 15.979999999999999mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 15-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, male, pitch 2.77x2.54mm, pin-PCB-offset 9.4mm, see http://docs-europe.electrocomponents.com/webdocs/1585/0900766b81585df2.pdf 26-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, female, pitch 2.29x1.98mm, pin-PCB-offset 3.0300000000000002mm, distance of mounting holes 25mm, distance of mounting holes to PCB edge 8.2mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 15-pin D-Sub connector straight vertical THT female pitch 2.41x1.98mm mounting holes distance 33.3mm 15-pin D-Sub connector horizontal angled 90deg.

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