gEDA-user: How to?

["Harold D. Skank" <skank54@xxxxxxxxx>]

People,

This questions sounds pretty basic for someone who has been around SPICE
as long as I have.  I first ran SPICE when I had to submit the circuit
on punched cards for simulation on an IBM 7074.  Had to wait about a day
to get the results back on line printer paper.  Well, on to gEDA
questions.

I have created a state variable BP filter.  I can run the ac analysis
using ngspice, and that seems to work very well.  It has allowed me to
specifiy the circuit values to get the band shape that I need.  Now
though, I would like to see the circuit response to a 5-cycle truncated
sine wave input, since this is the "real" signal that the filter will
see in operation.  How do I specify this as a voltage input and how do I
actually run the simulation?

Sounds dumb, huh?

	Harold Skank