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Connector (5.5mm outher diameter, inner diameter 2.05mm or 2.55mm depending on PCB sandwich, making some final-ish decisions about connecting to front panel b77534e3fc83cf3f21d8c938a2ebb93ca539acd3 updated README.md README.md | 4 | | | | | J5, J12, J13 | 3 | 2N3904 | 0.2A Ic, 40V Vce, Small Signal NPN Transistor, TO-92"/> Small Signal NPN Transistor, TO-92 R16, R17, R19, R20 **Potentiometer, 9 mm vertical board mount 3PDT miniature toggle switch could be mechanical difficulties using 9 mm. See [build notes](build.md). \*\*\* A-3586, A-3587, and A-3588 look similar but are normally closed rather than normally open.

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