Tapped 4pole Filter

[jh]

>I'm guessing that it's possible that your problems with simulating the circuit
>on Electronics Workbench may have something to do with Electronics >Workbench
>not really having an accurate model of the actual CEM3320 to work with (I
>imagine that you're using generic operational transconductance amps to
>simulate the 3320 gain cells, right?).  Maybe it's time to break out the
>soldering iron?

I remember I've made a pretty decent model of the 3320's gain cells for
PSpice at some time. At least the input bias part, probably not the output
resistance part. Must have done simulations of the OB-8 filter in both modes,
but that was a few years ago. Maybe I still have the files somewhere.

JH.