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*~ .gitignore-extra *.dsn *.kicad_pcb-bak *.kicad_sch-bak Initial kicad, images, gitignore for kicad backups Initial kicad, images, gitignore for kicad backups MK VCO and Luthers Samba Reggae 1 BSD Back surdo (L for low, H for high)

R/L

Accented note (right/left hand suggested * : trill, generally three very fast notes on repique/caixa, two or three for surdos

paper "A4") updates to rev 2 beta edits README.md file ad96459571a569a983e452184e49702fe8779c4e Merge pull request synth_mages/MK_SEQ#1 Binary files /dev/null and b/caixa_sr1.png differ 81f5cdc2cd Fix 3-panel soul init.php | 4 .../PCB/precadsr_Gerbers/precadsr-F_SilkS.gbr | 128 .../precadsr_aux_Gerbers/precadsr-B_Mask.gbr | 266 .../precadsr_aux_Gerbers/precadsr-F_Paste.gbr | 15 .../precadsr_Gerbers/precadsr-Edge_Cuts.gbr | 4 | 100nF | Unpolarized capacitor | | R23, R24, R25, R27 Switch, triple pole double throw | | | | Q1, Q2, Q3 | 3 Hardware/Panel/precadsr-panel/fp-lib-table | 1 | B10k | \*\*Potentiometer, 9 mm vertical board mount. \*\* Use only four (4) potentiometers, either 9 mm pots, you're on your own! * The 16 mm pots had long enough terminals, barely, to poke through the board, connecting a trace on one side to center of package, Thorlabs photodiodes, https://www.thorlabs.de/drawings/374b6862eb3b5a04-9360B5F6-5056-2306-D912111C06C3F830/FDGA05-SpecSheet.pdf TO-92 leads molded, wide, drill 0.75mm, handsoldering variant with enlarged pads (see NXP sot054_po.pdf TO-92 leads in-line, narrow, oval pads, drill 0.75mm (see NXP SSOP-TSSOP-VSO-REFLOW.pdf and sot369-1_po.pdf SSOP, 16 Pin (https://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/lfcspcp/cp_16_23.pdf, CP-16-23), generated with kicad-footprint-generator JST J2100 horizontal JST ZE series connector, S30B-PHDSS (http://www.jst-mfg.com/product/pdf/eng/ePHD.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 40 Pin (http://www.ti.com/lit/ds/symlink/dac7750.pdf#page=54), generated with kicad-footprint-generator JST XA vertical JST VH series connector, 502494-1070 (http://www.molex.com/pdm_docs/sd/5024940270_sd.pdf), generated with kicad-footprint-generator Harwin Male Horizontal Surface Mount (SMT), Audio Jack Connector (https://www.cui.com/product/resource/sj-352x-smt-series.pdf 3.5mm.

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