Here’s my BFR193 based discrete component audio amplifier. It does about 85dB of gain from two BFR193 transistors and one 2n3904. It’s pretty quiet for delivering all that gain. It’s derived from the Soldersmoke direct conversion receiver amplifier but with a lot of improvements, feedback, and different transistors and bias scheme. It will go into my next radio. I built it partly surface mount and partly with through hole in Manhattan style. Very happy with this! #HamRadio #AmateurRadio