I have been exploring BJT transistors and implemented a common base amplifier. I connected a signal generator to the voltage source labelled V2 in the below schematic. The oscilloscope image shows the input above the amplified waveform. It appears that it is in fact working, 10.8/.288 amplification. I wish to possibly use it to amplify a dynamic mic. I plan to reduce the amplification and/or control it by a potentiometer. Anyways..... my question is this
Why is the amplified signal "squareish" and not a decent replication of the input signal. It looks more like an amplified square wave. I created the circuit in LTSpice and simulated it. The simulation is shown below. I am reading materian on bjt transisters and especially common base amps,how is this fixable? Which resistor values should i look to change Rc, Re, or Both. Should the current level be changed through the emitter. With no signal generator, it is 205 micro amps on the real circuit. Do I need to adjust the voltage biase on the base. Thanks for nay advice.