Hello!

I'm quite a newbie with electronics, but I still would like to try some
things out..

For a project I need a *very* narrow BP-filter (fixed frequency, but still
adjustable so that I could have several modules with different frequency).
It does not have to be "noisefree".

Is it possible to construct in many ways, or are there some general rule you
always use when building BP-filters?

What would be the best way in this case?
(I want to know what things I should read moe about, and what I can skip)


// Anders