If anyone has an OmniA/d Series B manual, I need a copy of the page with the
Notch filter diagram. I did a modification to this years ago to make it a CW
peaking filter, and I believe my newly-acquired Argosy II has the very same
circuit. Can anyone help?
I'll gladly reimburse postage or fax expenses. The circuit is based around
an RC4136 quad op-amp, I believe.
Paul R. Schaffenberger, K5AF
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