Now, imagine for a moment our simple DC circuit used as an AC amplifier. We’re keeping the potentiometer, but also applying an AC source, a sine wave, to the base. As our sine wave rises and ...

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 ...

It’s a subject [IMSAI Guy] has tackled during the lockdown, recording a set of videos explaining a simple discrete-component op-amp. The op-amp circuit in question. His style is laid-back ...