At this moment the transistor is said to be saturated, or fully turned on, passing a current that’s limited by R1. Now, imagine for a moment our simple DC circuit used as an AC amplifier.

You’re going to build two simple transistor circuits, each using a single transistor. These circuits will allow you to observe the operation of a transistor as an amplifier, just as Walter ...

A simple AM transistor radio can be made with surprisingly few components, but for a circuit with a reasonable ... and two for the audio power amplifier, but it’s possible we’re not factoring ...

A friend recently sent me an email noting that the classic 2N3904 bipolar transistor was now 60 years old. Since its “birth” ...

In some ways, the very term “voltage divider” explains itself. It refers to a simple, passive circuit in which multiple ...