I swear: I know a bit about electronics, but it appears I can't design a simple working circuit to save my life!
Circuit in this case is just a 1-stage transistor amplifier. Tried sim-ing it in LTspice, but I get zero output. Here it is:
I'm feeding it a low-frequency (500 Hz) 300 mV signal. Why don't I see anything at the output (on either side of the coupling cap)?
I'm not trying to claim this is supposed to be a particularly good amplifier; I'm just trying to get the damn thing to work so I can proceed with the other parts of a project.
Seems to me my problems might be with LTspice, not necessarily the circuit itself. I guess I need to separate the two (LTspice and design problems).
300 mV is not a huge voltage, but it certainly should be amplifiable, right? Is it possible I have this thing biased so that the transistor isn't anywhere near the active region? I know one wants to get the quiescent point somewhere near 1/2 Vcc; am I way off here? And 20K is just a guess at a light output load.
Any help would be appreciated here.
Circuit in this case is just a 1-stage transistor amplifier. Tried sim-ing it in LTspice, but I get zero output. Here it is:
I'm feeding it a low-frequency (500 Hz) 300 mV signal. Why don't I see anything at the output (on either side of the coupling cap)?
I'm not trying to claim this is supposed to be a particularly good amplifier; I'm just trying to get the damn thing to work so I can proceed with the other parts of a project.
Seems to me my problems might be with LTspice, not necessarily the circuit itself. I guess I need to separate the two (LTspice and design problems).
300 mV is not a huge voltage, but it certainly should be amplifiable, right? Is it possible I have this thing biased so that the transistor isn't anywhere near the active region? I know one wants to get the quiescent point somewhere near 1/2 Vcc; am I way off here? And 20K is just a guess at a light output load.
Any help would be appreciated here.