Op Amp Notch Filter: Active Filter Circuit » Electronics Notes
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![Electronic devices: Active Filters [part 1]](http://www.industrial-electronics.com/images/electrnc-dvcs-9e_15-10.jpg "Electronic devices: Active Filters [part 1]")
Electronic devices: Active Filters [part 1]
![Activity: Active Filtering [Analog Devices Wiki]](https://wiki.analog.com/_media/university/courses/electronics/absf_gain.png?w=700&tok=3bdc0b "Activity: Active Filtering [Analog Devices Wiki]")