its not that am ignoring what you have told me ,but the circuit that i got i didn't understand it and i already said that i want to learn not just copy . plus the previous circuit gain is only 10 i need 20 and how can i change it if i don't understand it .
i have been told by HERO999 that the problem with my circuit is the output impedance so i tried to match it using emitter follower.
since my circuit is totally wrong ill go back to the previous one
**broken link removed**.
**broken link removed**
from what i understood that region 1 is the class AB that every one been telling me to use right?
region 2 is class A ,now what i totally don't understand is the purpose of Q3? the connection between Q1 and Q2,Q3 through R11?and the variable resistor R4?and how i can increase the gain ?
note:
am required to design an amplifier so i should be able to match the requirements given and be able to explain the purpose of every component that i used ...
actually my lecturer he is the one suggested to me to use the emitter follower ,if he is wrong i cant tell him that and if he is bad or simply don't know electronics i cant tell him that either but i need to make my circuit work so please go easy on me with criticism.