We’re guessing that some of our readers already are familiar with these class A amplifiers, commonly used to amplify small audio signals. Skipping over the fact that their efficiency is quite ...

they can be represented as part of small signal model as shown below Noise Analysis of Common Source Amplifier with resistive load: The small signal equivalent of above circuit including noise sources ...

Instead it’s a small-signal VHF amplifier, a rough equivalent of ... Still just as if you were to use an RF transistor in an audio circuit it would give good account of itself, so it is with ...