Hi, I am designing a circuit where i first use a JFET transistor to a provide a voltage gain, the JFET is wired as a self bias. Following the JFET is a BJT transistor which i am using to provide a second amplification. I have an issue though with the output waveform of the JFET transistor. I am not sure why but the output waveform is an amplifier version of the input waveform, except it is also raised by a certain voltage so the sine wave oscillates about a positive voltage and not 0 V. The output of the BJT however oscillates about 0 V. How can i make the output of the JFET oscillate about 0 V? Any help is appreciated.