Hello PF Members! I'm revising amplifiers so will post question here occasionally on topics which I don't understand. This isn't homework question as I am asking for my benefit but if you wish for it to be moved, it's fine. :) Here's my first question: I've seen the circuit model for voltage amplifiers. Is the current amplifier circuit model the same but the only difference is that we consider the current gain and the input current (Aiii instead of AvVv)? I didn't see a different chapter for current amplifier so I assume it is the same?