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Module with lots of analog drum voices; based heavily on Moritz Klein's work, but with buffering between (some) stages. Needs a TLC7524/AD7524 (a simple DAC that's still sorta analog) and a switch to disable clock (pause). - SPST switch to disable clock (pause). SPST switch per step, to indicate current step. (10 One SPDT switch to adjust parameters for. 1.0 2012-03-?? Initial release at https://www.thingiverse.com/thing:20513 . Based on designs from: Skull & Circuits (https://www.skullandcircuits.com/vca-1-2/ Moritz Klein (https://www.ericasynths.lv/shop/diy-kits-1/edu-diy-vca/ - Two voltage-controlled amplifiers Latest commits for file Docs/precadsr.pdf Latest commits for file Panels/luther_triangle_10hp_pcb_holder.stl VCO details from Moritz Klein (and derivatives Fix rail clearance issues, make all power traces large Add ground fills, fix some clearance issues, make all power main synth_tools/Schematics/SynthMages.pretty/Switch.lib 1741 lines main synth_tools/Schematics/SynthMages.pretty/POT_2_PIN_Header.kicad_mod 44 lines 1705ad98fb Put title box in PDF export 45cf8c00cd Merge pull request 'new_footprints' (#5) from new_footprints into main ... Put title box in PDF export' (#4) from schematic into main Reviewed-on: https://gitea.circuitlocution.com/synth_mages/MK_VCO/pulls/4 Put title box in PDF export' (#4) from schematic into main 3d279dd88c Finish schematic, add PDF Compare 3 commits from bugfix/v1.1 into main Merge pull request synth_mages/MK_VCO#5 Merge pull request 'Finish schematic, add PDF Features already done: - Internal clock with manual control. - Clock In Normal - 1k to U2-8 (AND NOT short to U2-10 Clock Rate - variable resist +6k between U2-8 and U2-9 - Reset Socket to U3-3 = capacitor measurement roughly 15nF (has a resistor limiting max drone frequency:
re-re-remove the mysterious extra trace .../Unseen Servant/Unseen Servant.kicad_pcb 10453 lines | 13 ...6.3mm_D2.5mm_P10.16mm_Horizontal.kicad_mod | 39 .../ao_tht.pretty/Rotary_Switch.kicad_mod | 38 .../SOT-23_Handsoldering.kicad_mod | 38 .../SOT-23_Handsoldering.kicad_mod | 38 .../SOT-23_Handsoldering.kicad_mod | 38 .../SPDT-toggle-switch-1M-series.kicad_mod | 23 (format (units 3) (units_format 1) (precision 4 (style (thickness 0.15) (arrow_length 1.27) (text_position_mode 0) (extension_height 0.58642) (extension_offset 0) keep_text_aligned (text "Kassu used 1 µF \npolyester film looks much \nbetter. F0 "Pots, switches, misc" 50 Optional SIP socket only if You agree to indemnify, defend, and hold each Contributor harmless for any purpose with or without Copyright (c) 2016-Present https://github.com/go-chi authors MIT License Copyright (c) 2020-2024 Meili SAS Permission is hereby granted, free of charge, to any person obtaining The MIT License Copyright (c) 2013, Yoshiki Shibukawa Copyright (c) 2018-2023 Lars Willighagen Permission is hereby granted, free of charge, to any person obtaining a copy.

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