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Quad Low-Noise JFET-Input Operational Amplifiers, DIP-8/SOIC-8/TSSOP-8/VSSOP-8 Binary files /dev/null and b/Schematics/Luthers_Perfboard.pdf differ Binary files /dev/null and b/Images/PXL_20210831_000949090.jpg differ Binary files /dev/null and b/Panels/luther_triangle_vco_quentin_v3_only_art.stl differ Binary files /dev/null and b/Panels/label_test.stl differ surface("FireballSpellVertSmaller.png", center=true, invert=false); } module label(string, size=4, halign="center", font=default_label_font) { color([1,0,0]) linear_extrude(thickness+1) text(string, size, halign=halign, font=font); } module cherry_mx_button() { union(){ cube([14,14,thickness]); // u[nits] function units_mm(u) = u * U; main synth_tools/PCB Notes.txt 17 lines e8295830c4 STLs, 10hp version, others schematics b404e3f9c5 Update luther's layout Update luther's layout BOTH false Directional false false HALF NONE Tubular W26 127 Update luther's layout Update luther's layout Update luther's layout BOTH false Directional false false Update luther's layout b22080a808 More experimentation with panel title fonts Untested hardware and software — Do not connect the Normal pin for op amp in schmidt inverter mode, maybe both 7808 and hex inverter trigger are unnecessary? Alternative: Midi -> CV We could also do all-different colors, but unfortunately Mouser only has A1Ms in orange. *** Expensive, about $3 each. Replacing LEDs in sliders, lit for each stage? * TBD, needs testing; but if LEDs are possible, this should be the same, see datasheet: https://www.mouser.com/datasheet/2/54/PTL-777483.pdf (page 4) if we want them to match. We could also do all-different colors, but unfortunately Mouser only has A1Ms in orange. Replacing LEDs in sliders, lit for each author's protection and ours, we want C3 and C4.

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