Bob wrote:
wrote:
The archiver works for the firrst set of documents, the OpAmp fitler
/combiner
page is not found. That sectin had the math discribing the functions.

Here?

http://webpages.charter.net/wa1sov/t...s/allpass.html

Not trying to be a PITA.....

Bob

THANKS!
For those interested this is one of the most complete treatments of the
subject
I have found.

Terry