I've seen a lot of audio circuits where you'll have a transistor in say a common emitter setup and then a cap, say 150pf between the collector and the base. I'm assuming this is a local NFB to attenuate higher frequencies. If that's the case, how do you calculate the effect of that? What's the frequency? What's the attenuation? I've googled and maybe I'm just wrong about what this is, but I can't find anything on it.
Pointers to further reading on the topic would be appreciated as well.
Thanks.
Pointers to further reading on the topic would be appreciated as well.
Thanks.