Yesterday I ran across a filter design software that I have to say is a good one for a change. It also prints the schematic and parts list for the filter. Now it is a Windows only app as it's coded in Visual Basic. The name of the app is "AADE Filter Design" amd is now freeware. You will get a nag screen the first 10 times you use it which is an ad for the authors other stuff. I tested that and after 10 restarts of the app it was gone. I designed a Chebyshev Low-Pass filter with a cutoff freq. of 35 MHz as quick as you could say scat, well almost. You can also test the design in which it displays a graph that it calculates shown the db attenuation. Anyhow, if you want a good free app for any type of filter network, the link is below.

AADE Filter Design;

http://www.aade.com/filter32/download.htm

Best,

Will

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