[amsat-bb] tracking notch filters

[Aryeh Weiss <aryeh@xxxxxxxxxxxxxxxx>]

Can someone on the list point me to a circuit for a tracking notch
filter?

Thanks in advance,

--aryeh 
-- 
Aryeh Weiss                          | email: aryeh@optics.jct.ac.il
Department of Electronics            | URL:  
http://optics.jct.ac.il/~aryeh 
Jerusalem College of Technology      | phone: 972-2-6751146
POB 16031                            | FAX:   972-2-6751275
Jerusalem, Israel                    | ham radio: 4X1PB/KA1PB
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