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Total 6 documents matching your query.

1. [Amps] ML!-2500 Filter Cap Replacement (score: 1): Author: Kim Elmore <cw_de_n5op@sbcglobal.net>; Date: Sun, 18 Feb 2007 20:45:20 -0600; I have my Dad's MLA-2500 in my shack for what I suspect is a filter capacitor replacement job. It hadn't been operated in a long time and Dad wanted me to check everything out (he's had health proble; /archives//html/Amps/2007-02/msg00289.html (7,191 bytes)
2. Re: [Amps] ML!-2500 Filter Cap Replacement (score: 1): Author: "Tom W8JI" <w8ji@w8ji.com>; Date: Mon, 19 Feb 2007 05:32:04 -0500; There are a few component selection errors in Dentrons that should always be taken care of immediately. The major error is they used carbon resistors across the electrolytics. Carbon resistors shoul; /archives//html/Amps/2007-02/msg00291.html (7,994 bytes)
3. Re: [Amps] ML!-2500 Filter Cap Replacement (score: 1): Author: Peter Chadwick <g3rzp@g3rzp.wanadoo.co.uk>; Date: Mon, 19 Feb 2007 14:05:11 +0100 (CET); critical voltage equalizing or voltage dropping applications, because carbon resistors age down in value with heat and time< I've never found one that aged down in value, always the ones I've checked; /archives//html/Amps/2007-02/msg00292.html (9,836 bytes)
4. Re: [Amps] ML!-2500 Filter Cap Replacement (score: 1): Author: "Tom W8JI" <w8ji@w8ji.com>; Date: Mon, 19 Feb 2007 08:55:01 -0500; Aging down is actually a very common so I'm quite surprised you never saw it! It is even in the resistance cycle curves supplied by some manufacturers. The normal cycle with a carbon comp is to decr; /archives//html/Amps/2007-02/msg00294.html (9,276 bytes)
5. Re: [Amps] ML!-2500 Filter Cap Replacement (score: 1): Author: Kimberly Elmore <cw_de_n5op@sbcglobal.net>; Date: Mon, 19 Feb 2007 06:52:04 -0800 (PST); Thanks, Tom. Yes, there are carbon comp resistors across the caps and I plan to replace those with metal film; I'll look for carbon comp resistors across the rectifiers and pull them. The story I rea; /archives//html/Amps/2007-02/msg00295.html (10,227 bytes)
6. Re: [Amps] ML!-2500 Filter Cap Replacement (score: 1): Author: Kimberly Elmore <cw_de_n5op@sbcglobal.net>; Date: Mon, 19 Feb 2007 06:54:53 -0800 (PST); Oh, good! Thanks, Robert. Now, I gotta figure out how to insure that metal chips don't wind up where they mustn't be. A vacuum cleaner right at the drill should help a lot. Happy QRO, Kim, N5OP Yeah,; /archives//html/Amps/2007-02/msg00296.html (9,063 bytes)

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