The 2N2907 is a widely available PNP bipolar transistor used for general purpose low power amplifying or switching applications. It has little to medium current, low power, medium voltage, and can operate at moderately high speeds. https://elecena.pl/product/27738319/opencircuit-2n2907-pnp-transistor-25-stuks 2025-01-22 https://elecena.pl/product/27738319/opencircuit-2n2907-pnp-transistor-25-stuks 2026-02-20