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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+Yaesu\s+FL\-2100B\s+failure\s+$grid\s+resistor\s+caps$\s*$/: 4 ]

Total 4 documents matching your query.

1. Re: [Amps] Yaesu FL-2100B failure (grid resistor caps) (score: 1): Author: Kevin Normoyle <knormoyle@comcast.net>; Date: Sun, 06 Mar 2005 01:15:31 -0800; I got a chance to work on my half-dead fl2100b tonite, after getting some good advice from people. A couple of questions at the end. schematics are here for those playing along at home ftp://bama.ede; /archives//html/Amps/2005-03/msg00149.html (9,665 bytes)
2. Re: [Amps] Yaesu FL-2100B failure (grid resistor caps) (score: 1): Author: "carl seyersdahl" <carlseye@tampabay.rr.com>; Date: Sun, 6 Mar 2005 08:42:18 -0500; Kevin: To start with , those grid caps are supposed to be 200 PF each. and you need to replace them with a total of about 1000 pf on each tube. The fact that the relay works ( with the tubes out) mak; /archives//html/Amps/2005-03/msg00152.html (12,569 bytes)
3. Re: [Amps] Yaesu FL-2100B failure (grid resistor caps) (score: 1): Author: "Joe Subich, K4IK" <k4ik@subich.com>; Date: Sun, 6 Mar 2005 10:17:19 -0500; Or the amplifier has been badly overdriven/drawn excessive grid current for a long time. Perhaps, there has also been DC current through those resistors due to the capacitor problem below. It' possib; /archives//html/Amps/2005-03/msg00157.html (10,125 bytes)
4. Re: [Amps] Yaesu FL-2100B failure (grid resistor caps) (score: 1): Author: Kevin Normoyle <knormoyle@comcast.net>; Date: Sun, 06 Mar 2005 11:13:57 -0800; <thanks for posted and non-posted responses everyone> summarizing: People have suggested the grid resistors may have suffered from long-term excessive grid current. Also possibly from the dc current; /archives//html/Amps/2005-03/msg00178.html (9,778 bytes)

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