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BackIn aac0a4a5b4 Notes from MK's PCB livestream Footprints: - avoid non-circular holes in footprints whenever possible; some fabs charge more for ovals - make power connection traces larger; MK uses a CA3080 OTA, an expensive and rare chip these days ($3/ea on amazon, maybe fakes) VCA MK's VCA Probably a straightforward build: one op-amp, four transistors and some example modules main 5a4e89eea6 Add position for resistor between coarse and +12V, value Fireball/Fireball.kicad_sch | 4 README.md | 3 | 100R | Resistor | | | R4, R12, R13 | 3 | A1M | Potentiometer | | L1 | 1 | Conn_01x07 | *(optional) SIP socket, 2.54 mm, 1x4 Pin header, 2.54 mm, 1x4 | | | | | | | | | | Screws, nuts, and spacers (see [build notes](build.md | | | R4, R6, R7 | 3 | 10k | Resistor | | U1 | 1 | SW_3PDT_x3 | Switch, single pole double throw, separate symbols"/>