Hi, The title is quite explicit , I think :-) . Here is the .net file I use :
* RLC serial circuit ISRC 1 0 AC 1 C0 1 2 1Om L0 2 3 0.1m R0 3 0 1 Rconv 1 0 100Meg * wcut-low = 1/(R0*C0)=100 rad/s * wcut-high = R0/L0 =10k rad/s .AC DEC 10000 1u 1Meg .END plotting V(1), I thought I would see a signal with a great magnitude in the lower and higher frequency range and low magnitude in the middle frequency range as Z(RLC) can be viewed as a band-rejection filter . What appears on the graph is important negative magnitude for the lower frequency and 0 for the higher frequency range . Does that seem right to you ? Thanks, Cédric _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user