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BackAnother 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 LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on ** https://www.instructables.com/Another-MIDI-to-CV-Box-/ yet another version Alternative: CV from something else VCF MK's Diode Ladder VCF ~$8 in parts, depending on PCB with exploratory 8hp layout Bring in diylc and openscad design From 62cb30efbfdab918bafabca8d6c9cca52ce95eca Mon Sep 17 00:00:00 2001 .../Panels/POLYMORPH.png | Bin 0 -> 146728 bytes Images/IMG_6771.JPG | Bin 0 -> 149061 bytes Images/IMG_6770.JPG | Bin 0 -> 38024 bytes From 8a9583e7df3009c52174c16ce501729b9c90d7ac Mon Sep 17 00:00:00 2001 Subject: [PATCH] Fix getting a bunch of wires backwards From 16055f0ae510d4466f2b156df715b3e97e4555d8 Mon Sep 17 00:00:00 2001 Subject: [PATCH] tweaks layout with input from sam 52b504dd7c Delete 'Panels/futura medium condensed bt.ttf' Delete 'Panels/futura medium condensed bt.ttf' Delete 'Panels/futura medium condensed bt.ttf' Delete 'Panels/Futura XBlk BT.ttf' Panels/Futura XBlk BT.ttf From 750478ab8360c0ef45b55687504a3e4846b752b4 Mon Sep 17 00:00:00 2001 Subject: [PATCH 13/13] re-re-remove the mysterious extra trace 5040873587dbb57684343269abab88d35cf7124b more fixes a5c5ff12ce18fecaaf346f973863d12bf361ac82 Notes from debugging Do not connect the Normal pin for Pause (J19/J18); the schematic is incorrect Ins: Clock In Normal - 1k to U2-8 (AND NOT short to U2-10 - Clock Rate - variable resist +6k between U2-8 and U2-9 Reset Sw - when pressed, short +12V and Reset In Pause CV In - U1-13 (can get at from top when assembled Stop Switch - 10 - center_adjust; // build up to it. For an executable work, complete source code distributed need not include works that contain only declarations, interfaces, types, classes, structures, or files made available under a Creative Commons Public Domain, SilkScreen Top, Type 2, Gauge Massstab 100mm CopperTop Type 5 Gauge, Massstab, 10mm, SilkScreenTop, Type 1, Gauge Massstab 10mm CopperTop Type 5 Gauge, Massstab, 10mm, SilkScreenTop, Type 1, Gauge Massstab 100mm SilkScreenTop Type 1 Gauge, Massstab, 100mm, SilkScreenTop, Type 2, Big, Symbol, CC-Public Domain, Copper Top, Small, ESD-Logo, similar JEDEC-14, without text, ohne Text, Copper Top, Big, Symbol, CC-Share Alike, Copper Top, Big, Symbol, High Voltage, Type 2, Copper Top, Small, Symbol, Highvoltage, Type 1, Copper Top.