The 2N2222 can be used as a switch or an amplifier. As a switch, it controls the flow of current to a load when sufficient current is applied to the base. As an amplifier, it magnifies a small input signal at the base into a larger output signal.
The 2N2222 can be used as a switch or an amplifier. As a switch, it controls the flow of current to a load when sufficient current is applied to the base. As an amplifier, it magnifies a small input signal at the base into a larger output signal.