This is my version of thebugger's common collector ( emitter follower ) amplifier. I actually built and tested this on 5/1/17 was able to get a voltage gain of 23 before severe distortion set in ( this became steadily worse as the pot wiper was moved toward the end connected to the emitter ) The voltage gain was also dependent upon the supply voltage. I used a bc549c with hFE = 557, but would be interested in trying other transistors to see how they'd perform. I only tested at 1 KHz but would be interested to see what the frequency response would be ( I expect that the transformer would probably have the biggest influence on frequency response )
