Re: LF: Playing with Pspice

["Alberto di Bene" <dibene@usa.net>]

          Regarding my previous post, Stewart Nelson objected that maybe
the circuit 
 wasn't correct, as, if V1 is a voltage source, it has zero impedance, thus 
making
 R1 and C1 useless.
 He was right, so I modified the circuit as below, putting R1 in series with 
the 
 voltage source, so to simulate a real-world source with 50 ohm impedance,
 and recomputed the Bode plot, which is substantially unchanged.
 
 Thanks Stewart
 
 73  Alberto I2PHD
 
 P.S. In case someone will build it, of course R1 and R2 are not real components
 of the filter, they are there just to represent the source and load impedances 
for 
 a correct computation.