Over the recent weeks here at Hackaday, we’ve been taking a look at the humble transistor. In a series whose impetus came from a friend musing upon his students arriving with highly developed ...

Current through R G1 depends on a voltage, V PC, with respect to the negative supply, V EE, applied to the power-control input at Pin 4. You can implement V PC with a voltage divider, a reference, or ...

You would like to measure the output pin of your circuit with a spectrum analyzer, but the pin needs to be biased to be in a standard operation mode. How would you bias this circuit without affecting ...

Bias circuits for class AB buffers (Fig. 1a) can take several forms. One alternative (not necessarily the best) is usually called the “old VBE doubler” (Fig. 1b). The main purpose of these circuits is ...