* MESA1 transient test - 
* Taken from macspice3f4
*
* This netlist shows convergence problems in ngspice.
* Paolo Nenzi (rework-14)

rd 1 3 10k
z1 3 2 0 mesa1 l=1u w=20u
vgs 2 0 dc 0 pulse(-3 0 0 0.5n 0.5n 2n 4n)
vdd  1 0 5v
.model mesa1 nmf(level=2 rd=31 rs=31)

.options noacct

.dc vgs -2 0 0.02
.tran 0.1n 5n
.print v(3) v(2)
.end

.control
run
plot v(2) v(3)
.endc