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Conn_01x04 | Pin header, 2.54 mm, 1x4 Light emitting diode | | | | C1 | 1 | Conn_01x10 | Pin socket, 2.54 mm, 1x2 (see [build notes](build.md | | | | | | J6 | 1 | TL074 | Quad operational amplifier, DIP-14 | | Q1, Q2, Q3 | 3 | 10 Schematics/Enlarge/Enlarge.kicad_pro | 143 C1 is too small; need more than 100k to get 1:1 between schematic and front panel, vertical PCB mount, https://www.neutrik.com/en/product/nc3fav1 A Series, 5 pole female XLR receptacle, grounding: separate ground.

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