[sdiy] BPF

[Rönnberg Niklas]

Hi guys,

I'm currently trying to change a MS20-style LPF to a BPF. I will do this by
converting the first pole to a HPF but I'll keep the second pole as it is.
But I'm not sure how to do this. Here's my suggestion:
http://www.itn.liu.se/~nikro/diy/bpf.gif

Can you help me out? Have I made the feedback loop correctly? The
summerizing opamp (the first one), should it be like this or inverted? Do
you have any suggestion on the capasitors? I think I will keep the second
capasitor, and maybe try a 5nF for the first...

Best regards

/Niklas