Recommended · for some experience
TSP #15 - Tutorial on the Theory, Design and Characterization of a Single Transistor BJT Amplifier
Why people recommend it
Recommended as a Signal Path tutorial that designs and measures a single transistor common emitter amplifier, pitched as a fairly basic introduction to class A gain stages.
Watch for: pairs with the same channel's class AB video
In their words
It just so happens that I watched a video earlier about an amplifier with a desinged gain of 100 for microphones which may have significant information for you: Tutorial on the Theory, Design and Characterization of a Single Transistor BJT Amplifier.
Andrew Morton on electronics.stackexchange.com, Jul 2016. CC BY-SA.