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What MK uses 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 Envelope/Envelope.kicad_pcb | 2 Fireball/Fireball.kicad_prl | 8 create mode 100644 Hardware/PCB/precadsr_Gerbers/precadsr-B_SilkS.gbr create mode 100644 Schematics/SynthMages.pretty/PinSocket_1x02_P2.54mm_Vertical.kicad_mod create mode 100644 Hardware/PCB/precadsr_aux_Gerbers/precadsr-job.gbrjob create mode 100644 Hardware/PCB/precadsr/ao_tht.pretty/PinHeader_1x03_P2.54mm_Vertical.kicad_mod create mode 100644 Images/precadsr-panel-holes.png create mode 100644 3D Printing/Pot_Knobs/pot_knob_two_parts_cap.stl create mode 100644 Hardware/PCB/precadsr/ao_tht.pretty/DIP-14_W7.62mm_Socket_LongPads.kicad_mod create mode 100644 MIXER.diy create mode 100644 Hardware/PCB/precadsr/precadsr.net delete mode 100644 Schematics/SynthMages.pretty/SLIDE_POT_0547.kicad_mod create mode 100644 Hardware/PCB/precadsr_Gerbers/precadsr-job.gbrjob create mode 100644 Hardware/PCB/precadsr/Kosmo_panel.pretty/Kosmo_Switch_Hole.kicad_mod delete mode 100644 Hardware/Panel/precadsr-panel/precadsr-panel-rescue.kicad_sym create mode 100644 Hardware/PCB/precadsr_Gerbers/precadsr-F_Cu.gbr create mode 100755 Panels/FireballSpell_Large.webp create mode 100644 Hardware/PCB/precadsr_aux_Gerbers/precadsr-B_Mask.gbr create mode 100644 Hardware/PCB/precadsr/Kosmo_panel.pretty/fastestenv_Panel_Mounting_Hole.kicad_mod create mode 100644 Hardware/PCB/precadsr/potsetc.sch create mode 100644 Hardware/PCB/precadsr/Kosmo_panel.pretty/Kosmo_Panel_Dual_Mounting_Holes_NPTH.kicad_mod delete mode 100644 Fireball/Fireball_panel.kicad_dru working_height = height - v_margin*2 - title_font_size*1.5; top_row = height - v_margin; working_increment = working_height / 6.

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