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Tuneable Bandpass Filter


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Non-Exam Extras

This tunable filter produces quite a nice sound effect by emphasising a range of frequencies that can be adjusted with R8.

With the potentiometer R8 at one extreme, the output peaks at about 500 Hz. At the other extreme, it's about 1000 Hz.

FilterBandpassTuneable.gif

This circuit is based on a similar one from this site.

 

 

 

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