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LF: Narrow CW filter using 32kHz clock crstals?

To: [email protected]
Subject: LF: Narrow CW filter using 32kHz clock crstals?
From: "Tracey Gardner" <[email protected]>
Date: Wed, 25 Sep 2002 18:49:07 +0100
References: <[email protected]>
Reply-to: [email protected]
Sender: <[email protected]>
I recall someone making a very narrow CW filter (20Hz?) which utilised a
number of 32kHz clock crystals.

I'd like to have a go at building one but can't recall where I saw the
information.

Can anyone on the list point me in the right direction please?

73s Tracey



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