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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 example modules Latest commits for file Schematics/SynthMages.pretty/POT_2_PIN_Header.kicad_mod From 7d48e110137d43d1f6f9100282eff6558c28f26b Mon Sep 17 00:00:00 2001 Subject: [PATCH] STLs, 10hp version, others schematics More schematics Merge pull request synth_mages/MK_VCO#4 merged pull request 'Put title box in PDF export Merge pull request 'pcb_finalization' (#1) from bugfix/10hp into main ... Put title box in PDF export Schematics/Fireball_VCO.pdf | Bin 0 -> 92229 bytes Panels/FireballSpellSmall.png | Bin 0 -> 46787 bytes Datasheets/tl074.pdf | Bin 0 -> 328607 bytes Images/PXL_20210831_001017829.jpg | Bin 0 -> 106584 bytes 3D Printing/Panels/SPIDER CLIMB.png Normal file Unescape Schematics/SynthMages.pretty/PinSocket_1x03_P2.54mm_Vertical.kicad_mod Normal file Unescape Hardware/PCB/precadsr/ao_tht.pretty/TerminalBlock_Degson_DG301_1x03_P5.00mm_Vertical.kicad_mod Normal file Unescape Hardware/Panel/precadsr_panel_al_Gerbers/precadsr_panel_al-F_SilkS.gbr Normal file Unescape Hardware/Panel/precadsr-panel-Gerbers/precadsr-panel-EdgeCuts.gm1 Normal file View File VCO_MANUAL_v2.pdf Executable file View File 3D Printing/Rails/36hp_innie.stl | Bin 0 -> 86371 bytes rename LUTHERS_VCO.diy => Schematics/LUTHERS_VCO.diy | 0 main MK_SEQ/Schematics/Unseen Servant/Unseen Servant_counter_board_noncanonical.kicad_pcb Normal file Unescape Hardware/PCB/precadsr/ao_tht.pretty/D_DO-35_SOD27_P7.62mm_Horizontal.kicad_mod Normal file View File Hardware/PCB/precadsr_aux_Gerbers/precadsr-Edge_Cuts.gbr Normal file View File 3D Printing/Pot_Knobs/Pot Knob in Two Parts.stl synth_tools/Schematics/SynthMages.pretty/Alpha Rotary 12.kicad_mod 46 lines Latest commits for file Fireball/Fireball.kicad_sch Added input resistor for sync; placed everything on PCB 398c2b234c Checkpoint after fixes but before shrinking boards From 90eb4a59497d2a7cd5af40574d33a6babf5b03e3 Mon Sep 17 00:00:00 2001 Subject: [PATCH] Notes from MK's PCB livestream Notes from debugging aac0a4a5b4f604add3c1ccb9d39a8956f2d60f00 More notes main synth_tools/3D Printing/Panels/AD&D 1e spell names in Filmoscope Quentin' 34a82a463f Delete '3D Printing/Panels/AD&D 1e spell names in Filmoscope Quentin/FIREBALL VCO.png differ Binary files /dev/null and b/Panels/luther_triangle_10hp_rib_space_fixes.stl differ synth_tools/Synth_Manuals/The MIDI Manufacturers Association - 1995 - MIDI 1.0 Detailed Specification.pdf | Bin 0 -> 106584 bytes 3D Printing/Rails/18hp_outie.stl Normal file View File Merge pull request 'Put title box in PDF export 45cf8c00cd Merge pull request synth_mages/MK_VCO#3 created pull request 'new_footprints' (#5) from new_footprints into main ... Add jlc constraints DRC; replace order number text Compare 19 commits » 14162964f9 Add circuit blocks to kick drum schematic MK_SEQ/Schematics/Unseen Servant/Unseen Servant.kicad_prl Normal file Unescape Schematics/Unseen Servant/Unseen Servant.kicad_sch create mode 100644 Hardware/Panel/precadsr_panel_al_Gerbers/precadsr_panel_al-B_SilkS.gbr create mode 100644 Hardware/PCB/precadsr/Kosmo_panel.pretty/Kosmo_Jack_Hole.kicad_mod create mode 100644 Hardware/PCB/precadsr/ao_tht.pretty/Potentiometer_Bourns_3296W_Vertical.kicad_mod delete mode 100644 Hardware/PCB/precadsr/Kosmo_panel.pretty/Kosmo_Panel_Dual_Slotted_Mounting_Hole_NPTH.kicad_mod delete mode 100644 Envelope/Envelope.kicad_sch create mode 100644.

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