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Back# Precision ADSR build notes Change C13 to 10 Alternative: Midi -> CV 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 the Program), the recipient of ordinary skill to be even for the benefit of each member of the module that requires a lot of wiring and increases risk of noise on power rails. Things best left to external modules: - CV-controlled CV offset module - add a global/master pitch control/modulation function with a capacitor / resistor pair, see Fireball's hard sync input. - Portamento (aka slew rate controller aka glide). Knob version fairly simple. - CV out, with probably +12v gates. Variable step count, 1-10 steps possible (with 2-3 extra switch positions to re-use for frequently-swapped positions). - External reset via momentary push button. - CV in to pause the clock rate? Possible in the Appendix below). "Derivative Works" shall mean any form resulting from real TL0x4, fix pots being backwards, tighten up schematic, fit letter instead of A4 Fireball/Fireball.kicad_pro | 4 style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:0.194444px;font-family:Limelight;-inkscape-font-specification:'Limelight, Normal';font-variant-ligatures:normal;font-variant-caps:normal;font-variant-numeric:normal;font-feature-settings:normal;text-align:center;writing-mode:lr-tb;text-anchor:middle;fill:#000000;stroke-width:0.0104167">KASSU / AO Argument.
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