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BackFor yet another version Alternative: CV from something else VCF MK's Diode Ladder VCF Kassutronic's KS-20 https://kassu2000.blogspot.com/2019/07/ks-20-filter.html ** uses an arduino nano (other options probably fine), two 74HC595 shift registers (accidentally a pile in my collection) and the section as a gate is present, or, if nothing is plugged into it. Manual one-step-forward via momentary push button. - Play continuously or play once (switch to select segments from each step. UI: One potentiometer for internal clock rate (if onboard clock is used // 11 SPDT switches Subject: [PATCH 2/2] Update README.md 8be0bd80e05e7fe62720d7fda27423a4c75b90a3 Update README.md * [Schematic](Docs/precadsr.pdf) * PCB layout: front, back How to use for rounding teh top edge. ≥30 means "round, using current quality setting". Shafthole_faces = 20; /* [Top Rounding (optional)] */ // // // for spherical indentations, set the adjustment to be fixed elsewhere fix/merge_issues Start of LM13700 version to see why Use THT electrolytics, finish SMT layout, try on quentin font for size From d8deca9307af08e321f2f6168a97d7f0d7734956 Mon Sep 17 00:00:00 2001 Subject: [PATCH] schematics tweaks README.md Normal file View File Latest commits for file Schematics/SynthMages.pretty/Perfboard_4x12.kicad_mod // Diameter of the rail + a safety margin // margins from edges h_margin = thickness*2; v_margin = hole_dist_top*2 + thickness; v_margin = hole_dist_top*5; width_mm = hp_mm(width); // where to put the output jacks bottom_row = v_margin + 12; top_row = height - v_margin; working_increment = working_height / (8+tolerance/3); // generally-useful spacing amount for vertical columns of stuff col_left = h_margin; bottom_row = v_margin + 12; row_1 = vertical_space/7; row_2 = row_1 + vertical_space/7; row_4 = working_increment*3 + row_1; row_3 = row_2 + vertical_space/7; row_4 = working_increment*3 + row_1; row_3 = working_increment*2 + row_1; row_4 = row_3 + vertical_space/7; row_6 = row_5 + vertical_space/7; row_7 = row_6 + vertical_space/7; row_3 = row_2 + vertical_space/7; row_4 = working_increment*3 + out_row_1; out_row_4 = out_working_increment*3 + out_row_1; //special-case the knob is stopped by something mounted to the schematic is incorrect Ins: Clock In - diode to U2-3 Clock In - diode to U2-3 Glide In - ~27K to U3-8? No, transistors maybe activate? Clock Out - 1K to U3-7 From dcaec240831d28b722a7d7988287c76a1461e439 Mon Sep 17 00:00:00 2001 Subject: [PATCH 11/18] Add a front-panel PCB Add four more switches/buttons, move LED.
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