hi all, I wants do get gain vs frequency response. How do i get ? I tried please check @srinivasan_muthukrishnan19 @Piyush Dwivedi hi @Stefan Schippers could you help me here ? I am doing ac analysis but getting as transient. like time domain vs gain. I need a plot frequency vs gain. How can I do ?

you have a tran and an AC analysis.you must select the ac analysis to plot ac results.

echo $plots

setplot ac1

tran simulation and ac simulation are lunch in same time. AC simulation is just ignored

I try to repeat. Before giving the

plot

command you must give the command

setplot ac1

otherwise you are seeing the output voltage and phase of a transient simulation, because this is the last simulation ran by ngspice. Since transient data is real and not complex phase is always zero,

@Stefan Schippers can we skip setplot ac1 if we run just ac analysis?

Yes the current plot is always the last simulation done.