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Stereo bandpass filter
Stereo bandpass filter
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Old 9th November 2010, 05:32 PM   #1
billman is offline billman  Greece
diyAudio Member
Join Date: Jul 2007
Default Stereo bandpass filter


I am trying to tune my car and made an adapter cable from the factory knock sensor to a small stereo jack.

I sounds good but i would like to interfere a bandpass filter so i only hear the frequency i am interested in (in this example 6900-7200 Hz).

Can someone help me out here since circuit design is not my field? :-)

I would not mind if it would also amplify the signal and gave me earphone output. (if there is a ready cheap solution, let me know).

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Old 10th November 2010, 07:22 AM   #2
billman is offline billman  Greece
diyAudio Member
Join Date: Jul 2007
posted twice in the forum. Please delete,
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