d123
Advanced Member level 5
To be honest with you, I have learnt about feedback and not about DC or AC feedback. Do you know any reference that makes this differentiation between those two types of feedback?
If you search for e.g. BJT biasing, (maybe AC amplifiers) or delve a bit into audiophile circuits/forums you will be able to read thousands of free pdfs, tutorials, app notes, etc. that explain both in the same document/page or separately. There wouldn't be time in the world to read them all .
For related things, I really recommend **broken link removed**, lots of informative and serious articles, and quite funny sometimes, I've learnt a lot of interesting things just having the patience to read through the ones of interest to me.