bode plotter and transient

[AhmedRoca]

Hi, I'm making a simple audio amplifier using only transistors, the R3 1k variable resistor controls the gain of the amplifier, but when  simulate not matter what value is set on R3 the bode plotter is the same. what can i do for analyze the gain and phase for different values of R3?

Is the bode plotter working only in the transient of the circuit ?

[HectorBeristain · Accepted solution]

It is actually changing, but it will only show the values of the initial circuit.

Check this out:

5%(1kΩ) VS 100%(1kΩ)

Just run the simulation again to get the plot of the new value.

Regards,

Kudos are welcome 😉

[AhmedRoca]

Thanks a lot. I feel a little silly  just run again the simulation. now im  using an AC sweep instead of the bode plotter  for the plots and all work fine. 

Thanks Again.