synth_tools

Back

(Level A Circular Fiducial, 0.5mm bare copper, 1.5mm soldermask opening Circular Fiducial, 0.5mm bare copper, 2mm soldermask opening Circular Fiducial, 0.5mm bare copper, 3mm soldermask opening Circular Fiducial, 0.75mm bare copper, 1.5mm soldermask opening Circular Fiducial, 1mm bare copper, 2mm soldermask opening (Level C Circular Fiducial, 0.5mm bare copper, 3mm soldermask opening Circular Fiducial, 0.5mm bare copper, 3mm soldermask opening (Level C Circular Fiducial, 0.5mm bare copper, 4.5mm soldermask opening Circular Fiducial, 1mm bare copper, 3mm soldermask opening Circular Fiducial, 1mm bare copper, 3mm soldermask opening Circular Fiducial, 1mm bare copper, 1mm soldermask opening (recommended 5-pin SAW filter package based on ** https://www.instructables.com/Another-MIDI-to-CV-Box-/ yet another fairly simple one, using Arduino (nano or uno) + MCP4725 (DAC). ** https://hkadesign.org.uk/monotronkb.html for 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 LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on https://www.schmitzbits.de/ms20.html which is good practice, but ho-dang what a mess More traces and vias, and this is good practice, but ho-dang what a mess romps with traces, vias, and net links Add four more switches/buttons, move LED drivers onto PCB added the once through idea with commentary by 496e3e3344 Correcting changed filename in .prl 54f1a61ba5 gets jiggy with PCB locator, 13 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xxx-dv-xx-xx-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-dv-footprint.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 20 Pin (https://www.analog.com/media/en/technical-documentation/data-sheets/AD7682_7689.pdf), generated with kicad-footprint-generator Molex KK 396.

New Pull Request

Labels Milestones