I came across this radio schematic in electric circuit book. I'm a new to op amps. I tried to analyze this circuit and I succeeded partially but I couldn't figure out this op amp function(the middle one) (I think it's IF amplifier) and how it function.
Can someone explain it thoroughly for me.
explain to me how the output is shorted to the input and to the voltage divider? if the op amp is to make the input voltage equal then there wouldn't be any current going through R9 right?since there is no voltage drop across it.
How can I calculate the output??