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Doc From 13c8bcac477b612d33e1b1cfe89a6f9adc0a8935 Mon Sep 17 00:00:00 2001 Subject: [PATCH] Initial kicad, images, gitignore for kicad backups afea9d5a2c Final revision; added custom DRC as project file tstamp 62e17d71-a82e-47f7-8a14-a0885fbe0008) Final revision; added custom DRC as project file 33729ec97f6dd2ed68c4ca06088ce0b21651948d Align panel to integer pseudo-origin, remove testing text, decrease title label font size to 9mm and align it precisely for repeatability Align panel to integer pseudo-origin, remove testing text, decrease title label font size to 9mm and align it precisely for repeatability Change transistor footprint to inline_wide, fix DRC ground plane Updates from real TL0x4s re-re-remove the mysterious extra trace Added schmancy pcb for v1 build Latest commits for file KICKDRUM_MANUAL.pdf Schematic fixes: Trim 5mm from vertical for both panels, to make the hole on the bottom of box [right_edge, -extra_depth], // top horizontal rib // middle horizontal rib // h_wall(h=4, l=right_rib_x); // middle horizontal rib h_wall(h=4, l=right_rib_x); // middle horizontal rib // middle horizontal rib // h_wall(h=1.6, l=right_rib_x); // bottom horizontal rib // one more to mount a circuit outside the full dev board (in some cases) Arduino + DAC https://www.youtube.com/watch?v=t3kUPjdiq0o for explainer https://drive.google.com/drive/folders/156nn9rClRLJplS4M46s56-Pibi86Z-Kp for schematics and .ino file uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on http://www.latticesemi.com/view_document?document_id=213 BGA 0.8mm 9mm 121 BGA-132 11x17 12x18mm 1.0pitch Altera BGA-144 M144 MBGA Altera VBGA V81 BGA-81 Altera BGA-100 M100 MBGA 121-ball, 0.8mm BGA (based on standard DIP-4), row spacing 15.24 mm (600 mils), Socket 20-lead though-hole mounted DIP package, row spacing 16.51 mm (650 mils), SMDSocket, SmallPads 22-lead though-hole mounted DIP package, row spacing 10.16 mm (400 mils), LongPads 42-lead though-hole mounted DIP package, row spacing 7.62 mm (300 mils), LongPads, see https://ac-dc.power.com/sites/default/files/product-docs/tinyswitch-iii_family_datasheet.pdf Power Integrations K Package PowerPAK SO-8 Dual.

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