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Total 7 documents matching your query.

1. [Amps] AL-1200 Glitch Resistor (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Sun, 12 Apr 2015 08:25:50 -0400; I'm working on an AL-1200 for a friend. While finding the problem in the PS, I noticed that a glitch resistor is absent in the design that would otherwise limit HV fault current. I verified this on b; /archives//html/Amps/2015-04/msg00073.html (7,489 bytes)
2. Re: [Amps] AL-1200 Glitch Resistor (score: 1): Author: "Carl" <km1h@jeremy.qozzy.com>; Date: Sun, 12 Apr 2015 08:45:41 -0400; See the photos of the current big Ameritron series. They use a big carbon resistor that is in the parts list, sort of pricey however. Carl KM1H I'm working on an AL-1200 for a friend. While finding t; /archives//html/Amps/2015-04/msg00076.html (8,356 bytes)
3. Re: [Amps] AL-1200 Glitch Resistor (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Sun, 12 Apr 2015 09:10:10 -0400; Carl, Any idea when it went into production? I see it in the on-line parts list as P/N 10-10154 for $19.11 but I dont see it on the current PDF schematic. In this particular AL-1200, the only HV faul; /archives//html/Amps/2015-04/msg00077.html (10,184 bytes)
4. Re: [Amps] AL-1200 Glitch Resistor (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Sun, 12 Apr 2015 09:32:23 -0400; Roger, N1RJ kindly sent me an updated and cleaned-up schematic from Ameritron (current as of 2011) that now shows a 22-ohm glitch resistor in the B+ line. Unfortunately, that schematic is not yet par; /archives//html/Amps/2015-04/msg00079.html (10,864 bytes)
5. Re: [Amps] AL-1200 Glitch Resistor (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Sun, 12 Apr 2015 09:35:55 -0400; Clarification: the revised AL-1200 schematic was re-drawn by K6AM. I'm not sure if he has any affiliation with Ameritron. In any event, he did a very nice job with the update. Paul, W9AC Roger, N1RJ; /archives//html/Amps/2015-04/msg00080.html (11,520 bytes)
6. Re: [Amps] AL-1200 Glitch Resistor (score: 1): Author: "Carl" <km1h@jeremy.qozzy.com>; Date: Sun, 12 Apr 2015 09:38:45 -0400; Carl, Any idea when it went into production? I see it in the on-line parts list as P/N 10-10154 for $19.11 but I dont see it on the current PDF schematic. ** No I dont Paul, time flies at my age but; /archives//html/Amps/2015-04/msg00081.html (12,218 bytes)
7. Re: [Amps] AL-1200 Glitch Resistor (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Sun, 12 Apr 2015 09:55:53 -0400; A single 1N5408 does exist between B- and chassis ground. "** Thats an upgrade as it used to be a 1N4007 which was considered sufficient by its "designer" but the slightest little burp would short it; /archives//html/Amps/2015-04/msg00083.html (8,124 bytes)

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