A Simple N-Channel JFET Circuit 

** Circuit Description **
* dc supplies
Vdd 1 0 DC +10V
* JFET circuit
J1 2 0 3  n_jfet
Rd 1 2 1k
Rs 3 0 0.5k
* n-channel jfet model statement 
.model n_jfet NJF (beta=1m Vto=-4V lambda=0)
** Analysis Requests **
* calculate DC bias point
.OP
** Output Requests **
* none required 
.end