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Total 3 documents matching your query.

1. LF: Re: Narrow CW filter using 32kHz clock crstals? (score: 1): Author: "hamilton mal" <[email protected]>; Date: Thu, 26 Sep 2002 16:22:45 +0100; 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 anyon; /rsgb_lf_group-archives/html/rsgb_lf_group/2002-09/msg00049.html (9,785 bytes)
2. LF: RE: Narrow CW filter using 32kHz clock crstals? (score: 1): Author: "Andy talbot" <[email protected]>; Date: Thu, 26 Sep 2002 08:36:04 +0100; Its was I ........... 1) Take a handful of watch crystals, from the same batch (buy 10 or 20 from Farnel / Maplin ??) 2) Connect 5 in series to form the top elements of a ladder filter; you now have; /rsgb_lf_group-archives/html/rsgb_lf_group/2002-09/msg00051.html (9,754 bytes)
3. LF: Re: Narrow CW filter using 32kHz clock crstals? (score: 1): Author: "Johan Bodin" <[email protected]>; Date: Wed, 25 Sep 2002 21:59:05 +0200; Tracey, I think Andy G4JNT has been playing with 32kHz watch xtals in filter applications. 73 Johan SM6LKM; /rsgb_lf_group-archives/html/rsgb_lf_group/2002-09/msg00053.html (8,718 bytes)

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