Here, in this question, I am referring to 3 stage Lin topology amplifier (differential stage - voltage amplification stage - output power stage + negative feedback).
I am wondering about portion of negative feedback being fed from the output to T3 via resistor network.
Here, in this case, voltage gain equals Av = Rf1/Rf2 + 1 = 23. So, I am wondering if the difference in amplitudes between two base-to-emitter voltages of TR2 and TR3 is increased if we increase the Rf1? And vice versa if we decrease the resistance of Rf1?