clipping problem

[maxpou]

Hi all,
how polarised jfet for have a perfect clipping? i want to built a line stage preamp single ended with gain of 10-12 db but when i have my perfect gain i have a problem with my clipping, positive peak clip but not negative. Why? Somebody can help me! thank you! Maxpou

 

[nitrate]

We can't help you unless you post a circuit diagram of what your trying to do.

Leigh

 

[maxpou]

Hi Nitrate,
i have this problem with one jfet. Schematic is a exemple. thank you! Maxpou

 

[AndrewT]

Hi,
what is the voltage on the output?
How far can the output voltage swing until either rail starts to limit?
Can you move the quiescent bias voltage on the output to equalise the available swings to either supply rail?

 

[richie00boy]

The reason is that the constant current source needs a finite voltage across it to work properly.