[Amps] slightly off topic - bandpass filter software ?

[k7fm]

>I am taking an interest in the filters used in the SB-104 and A. There a
>several sets of these filters used in many places in the 104(A) design.

There is a FREE program that does everything you asked for. 
http://www.aade.com/

While there, look around at the other stuff they have.  In particular, the 
LC meter is excellent.

73,  Colin K7FM