synth_tools

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README.md 40588ba725f2f6c7240cc5d95c2a8af539e27e15 Update README.md f0ccd475bcae4d90f684767b57611a775351886d Update README.md 3e868f13c4dc33c20ca33a0cc8f51c9d63e1c081 updated C14 footprint, traces, groundplane updated C5 footprint & tracing; schematic annotation Add 55k-ish resistor to coarse knob to fix tuning range Add 55k-ish resistor to coarse knob to fix - Single-step button (SW13) isn't producing a high enough voltage to trigger a second sequencer's run, which then re-triggers the first. - Trigger out - could be done externally with a capacitor / resistor pair, see Fireball's hard sync input. - Portamento (aka slew rate controller aka glide). - Knob version fairly simple. CV version maybe possible, but a much bigger circuit. Haven't found a simple manual EG ~$7 in parts, mostly down to PCB edge 10.889999999999999mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 15-pin D-Sub connector horizontal angled 90deg THT male pitch 2.29x1.98mm pin-PCB-offset 9.4mm 15-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, female, pitch 2.77x2.84mm, pin-PCB-offset 9.9mm, distance of mounting holes to PCB edge 9.12mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 44-pin D-Sub connector straight vertical THT male pitch 2.77x2.84mm pin-PCB-offset 4.9399999999999995mm mounting-holes-distance 47.1mm mounting-hole-offset 47.1mm 25-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, female, pitch 2.77x2.84mm, distance of mounting holes 33.3mm, distance of mounting holes to PCB edge 11.32mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 25-pin D-Sub connector horizontal angled 90deg THT male pitch 2.41x1.98mm mounting holes 47.1mm.

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