- 1. [Amps] Yaesu FL-2100B failure (score: 1)
- Author: Kevin Normoyle <knormoyle@comcast.net>
- Date: Mon, 21 Feb 2005 00:37:12 -0800
- My FL-2100B isn't working right. I've probed the list and gotten some good hints, but thought I could mine for collective wisdom also. I bought this amp used about 2 yrs ago. So it had been fine for
- /archives//html/Amps/2005-02/msg00643.html (7,678 bytes)
- 2. [Amps] Re: Yaesu FL-2100B failure (score: 1)
- Author: Kevin Normoyle <knormoyle@comcast.net>
- Date: Mon, 21 Feb 2005 17:09:57 -0800
- I opened it up and I'll answer myself. Looks like I have all the typical problems. The band switch contact is blown at the 10m position. (Interestingly someone had done a "repair" at the 80m position
- /archives//html/Amps/2005-02/msg00658.html (6,577 bytes)
- 3. Re: [Amps] Yaesu FL-2100B failure (score: 1)
- Author: Kevin Normoyle <knormoyle@comcast.net>
- Date: Tue, 22 Feb 2005 01:14:08 -0800
- Hi Richard! <unless you include the operator error at the time of purchase! HI!> Yeah, I've been reading old posts about parasitics in this amp design. Interesting stuff. Seems like there's a number
- /archives//html/Amps/2005-02/msg00662.html (8,714 bytes)
- 4. [Amps] Re: Yaesu FL-2100B failure (score: 1)
- Author: Kevin Normoyle <knormoyle@comcast.net>
- Date: Tue, 22 Feb 2005 04:02:58 -0800
- Hi Peter, This is an interesting idea. I was wondering about something like that. But the relay does kick off fine, if I totally shut off power to the amp. It's wired for 220v. -13v is created and us
- /archives//html/Amps/2005-02/msg00666.html (8,767 bytes)
- 5. [Amps] [AMPS] Re: FL-2100B Failure (score: 1)
- Author: knormoyle@comcast.net
- Date: Tue, 22 Feb 2005 18:57:10 +0000
- Thanks everyone for the responses! There are a couple votes on residual magnetism on the relay, so I'm definitely going to check that out. The lead reversing is a neat trick Will check the armature s
- /archives//html/Amps/2005-02/msg00669.html (7,417 bytes)
- 6. 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)
- 7. 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)
- 8. Re: [Amps] Yaesu FL-2100B failure (other grid caps + summary plans) (score: 1)
- Author: Kevin Normoyle <knormoyle@comcast.net>
- Date: Sun, 06 Mar 2005 14:54:43 -0800
- Carl recommended looking at the other grid to ground caps. Here's what I found, and summary of changes I'm going to make. no shorts on these caps. I think they're both originals. C208 is ceramic disc
- /archives//html/Amps/2005-03/msg00185.html (8,496 bytes)
- 9. [Amps] bandswitch repaired (photos)...now plate choke (score: 1)
- Author: Kevin Normoyle <knormoyle@comcast.net>
- Date: Wed, 09 Mar 2005 02:38:01 -0800
- Gary S. had asked for internal photos of a fl2100b he was repairing, so I uploaded some to msn. (I was taking snaps to remember where everything goes) http://groups.msn.com/yaesurotatorphotos/yaesufl
- /archives//html/Amps/2005-03/msg00227.html (9,862 bytes)
- 10. [Amps] fl2100b part 3 (score: 1)
- Author: Kevin Normoyle <knormoyle@comcast.net>
- Date: Sat, 16 Apr 2005 14:44:18 -0700
- I had posted before at my progress in bringing my fl2100b back to life. A chance here to laugh at the "microwave generation" (me) :) I rewound the burnt plate choke. Used 27awg 200C magnet wire. cove
- /archives//html/Amps/2005-04/msg00313.html (8,970 bytes)
This search system is powered by
Namazu