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Old 10th Oct 2019, 7:17 pm   #23
Biggles
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Join Date: Feb 2004
Location: Hexham, Northumberland, UK.
Posts: 2,234
Default Re: Modifying discriminator coil for narrow band FM.

Well that's given me some encouragement to try a few quick test circuits. As wideband IF strips are typically stagger tuned, it may be possible to tweak them up a bit to obtain a more peaky response more suited to NBFM. As has been said already, any audio levels could be corrected by introducing a bit of gain, if the discriminator noise level isn't too high. If the coils can't be used "as-is" out of the spares box, it's probably a non starter, as there are probably better solutions available, using more suitable components.
Alan.
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