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-> 510084 bytes // PCB holder pcb_holder(h=10, l=top_row-rail_clearance*2-15-thickness, th=1.15, wall_thickness=1); // lower h-rib reinforcer ## Photos [to be added] ## 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 63579cf959 Add notes about UX component wiring 55ee65a5e9 Checkpoint after re-centering sliders, before removing redundant LED resistors next to transistors to save on panel wires 2eebdf7ecf Add four more switches/buttons, move LED drivers onto PCB added the once through idea with commentary by Latest commits for file Datasheets/BC546A-MCC.pdf Fireball/fp-info-cache Normal file Unescape Hardware/PCB/precadsr/ao_tht.pretty/Rotary_Switch.kicad_mod Normal file Unescape Schematics/Enlarge/Enlarge.kicad_pro Normal file Unescape D Rotary switch, 4-bit encoding, 16 positions, Real code K rotary hex Real D Rotary switch, 4-bit encoding, 16 positions, Real code K rotary bcd Real D Rotary switch, 4-bit encoding, 16 positions, Complementary code K rotary bcd Gray D Rotary switch, 4-bit encoding, 10 positions, Complementary code K rotary hex Complementary D Rotary switch, 4-bit encoding, 10 positions, Real code K rotary bcd Gray D 1x DIP Switch, Single Pole Single Throw (SPST) switch, small symbol D 10x DIP Switch, Single Pole Single Throw (SPST) switch, small symbol D 12x DIP Switch, Single Pole Single Throw (SPST) switch with 6 positions D 4 rotary switches are actually 2p6t, which means only six different step counts are available until the replacement arrives Wiring SW15 (once/stop) and cascade out is easier done via skywiring; only one tl074 and support Kassutronic's KS-20 https://kassu2000.blogspot.com/2019/07/ks-20-filter.html ** uses an arduino nano clone (atmega 328p), 12-bit dac (mcp4726) and small amounts of supporting hardware Microcontroller and smoothed PWM https://kassu2000.blogspot.com/2019/10/quantizer.html using a gate. If nothing is plugged into it. Manual one-step-forward via momentary push button. - CV Range - Once/Cont 11 Toggle Switches, 3pin: - CV Range - Once/Cont 11 Toggle Switches, 2pin: - reset Pots, 3-pin: .

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