2 layers

Boards in 2 GitHub repositories, designed in KiCad, that use the 2N2219A by Microchip Technology (-55℃~+200℃ 100 10nA 50V 800mA NPN TO-39 Bipolar (BJT)). See how each wires it, with its parts, size, README and files; the 2N2219A’s symbol, footprint and pinout are on its own page.

