1: Calculate the "raw gain" of the amplifier. Ar=Vut/Vin
2: Calculate the gain of the amplifier. Av=Vut/Vs
What is the difference between "raw gain" and gain?
Sorry for the bad translation, I don't even know if "raw gain" is the correct term in english, haha.
the difference between Av and Avs is expressed inthe equations below
Av=V0/Vin
where Vin = (Rin / Rin+Rs). Vs
Avs = Vo/Vs
in the first equation (Av) we considering the voltage drop on the source resistance Rs while in the later one (Avs) the gain is calculated prior the source resistance drop