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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TenTec\]\s+Hercules\s+II\s+fan\s+noise\s*$/: 23 ]

Total 23 documents matching your query.

1. [TenTec] Hercules II fan noise (score: 1)
Author: Steve Hunt <steve@karinya.net>
Date: Tue, 26 Aug 2008 11:33:40 +0100
I was trying to copy a weak CW signal yesterday, without headphones on, and noticed just how intrusive the sound of my Hercules II cooling fan is. I don't think it's any worse than when it was new -
/archives//html/TenTec/2008-08/msg00398.html (6,950 bytes)

2. Re: [TenTec] Hercules II fan noise (score: 1)
Author: "Bob Good" <k4bg@planters.net>
Date: Tue, 26 Aug 2008 07:31:48 -0400
Greetings Steve, I have operated a Herc II for the past 16 years. I seldom notice that there is even a fan in the unit. Only in heavy "contest" operation do I hear it and I don't recall ever hearing
/archives//html/TenTec/2008-08/msg00399.html (7,044 bytes)

3. Re: [TenTec] Hercules II fan noise (score: 1)
Author: Steve Hunt <steve@karinya.net>
Date: Tue, 26 Aug 2008 13:46:23 +0100
If anyone cares to take a listen, I just made a recording of the fan noise; the MP3 file is at: http://www.karinya.net/g3txq/herc_fan.mp3 The first 10secs is with the Amp cold. 10 seconds into the re
/archives//html/TenTec/2008-08/msg00400.html (7,295 bytes)

4. Re: [TenTec] Hercules II fan noise (score: 1)
Author: "Mike Hyder --N4NT--" <mike_n4nt@embarqmail.com>
Date: Tue, 26 Aug 2008 09:52:59 -0400
Hi, Steve-- Not the same amp but its namesake: I had the original Hercules 444. Its fan increased speed with temperature. At full tilt it sounded rather like a 747 in full engine reverse. Putting it
/archives//html/TenTec/2008-08/msg00401.html (8,338 bytes)

5. Re: [TenTec] Hercules II fan noise (score: 1)
Author: Steve Hunt <steve@karinya.net>
Date: Tue, 26 Aug 2008 15:16:11 +0100
Mike, Thanks for the input - I think I remember reading somewhere that the original Hercules was noisy. However, Bob Good advises that his Hercules II is quiet, and I just found a 1990 CQ report wher
/archives//html/TenTec/2008-08/msg00402.html (8,909 bytes)

6. [TenTec] Hercules II fan noise (score: 1)
Author: jac <jacrux@googlemail.com>
Date: Tue, 26 Aug 2008 17:53:23 +0100
I have never had that noise from my Hercules II even when running 500 watts out. In fact I was just on the air rag chewing on 20CW and the only fan noise I got was from the separate 25 amp (analog) s
/archives//html/TenTec/2008-08/msg00404.html (8,844 bytes)

7. Re: [TenTec] Hercules II fan noise (score: 1)
Author: Stuart Rohre <rohre@arlut.utexas.edu>
Date: Tue, 26 Aug 2008 14:45:05 -0700
Steve, Definitely a noisey fan! There is a resonance heard with something else. Mounting the amplifier on a rubber pad may help. Also, mounting a rubber gasket under the fan mounts may isolate it fro
/archives//html/TenTec/2008-08/msg00405.html (8,714 bytes)

8. Re: [TenTec] Hercules II fan noise (score: 1)
Author: Steve Hunt <steve@karinya.net>
Date: Tue, 26 Aug 2008 22:53:57 +0100
Thanks, everyone for the useful suggestions on my noisy fan problem.. The consensus seems to be that this is NOT normal, so I now have several things to try. By the way, TT Service advises that the f
/archives//html/TenTec/2008-08/msg00406.html (7,987 bytes)

9. Re: [TenTec] Hercules II fan noise (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Tue, 26 Aug 2008 23:43:25 -0400
Don't forget the basic step of cleaning dirt off the fan blades and the finger guards. This dirt can cause loud, choppy noise. 73 de Gary, AA2IZ _______________________________________________ TenTec
/archives//html/TenTec/2008-08/msg00409.html (9,416 bytes)

10. Re: [TenTec] Hercules II fan noise (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Tue, 26 Aug 2008 17:54:02 -1000
Hi Steve, Your Hercules II fan is definitely noisier than mine. I wonder if someone has already changed the fan for a different model which is noisier. I suggest you ask Ten-Tec what the specs are fo
/archives//html/TenTec/2008-08/msg00410.html (8,456 bytes)

11. Re: [TenTec] Hercules II fan noise (score: 1)
Author: Steve Hunt <steve@karinya.net>
Date: Wed, 27 Aug 2008 16:56:29 +0100
Today I did a few checks on the present fan. 1) I unbolted it from the under-tray and held it in place by hand. There was no reduction in noise, so I don't think resilient mountings will help. 2) I r
/archives//html/TenTec/2008-08/msg00419.html (9,184 bytes)

12. Re: [TenTec] Hercules II fan noise (score: 1)
Author: "Duane Calvin" <ac5aa1@gmail.com>
Date: Wed, 27 Aug 2008 17:55:53 -0500
Re: thermal engineering at TT - - Clearly not their forte, Steve, nor is acoustics (your fan is an example, as was the Centaur amp). Back to the thermal side, check the heat sinks on the power module
/archives//html/TenTec/2008-08/msg00424.html (10,486 bytes)

13. Re: [TenTec] Hercules II fan noise (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Wed, 27 Aug 2008 23:45:36 -0400
Its a common mis-conception that I run into professionally all the time. The fact is that unless the height of the vertical fins would be quite large, coupled with a large delta T, there is not enoug
/archives//html/TenTec/2008-08/msg00429.html (12,765 bytes)

14. Re: [TenTec] Hercules II fan noise (score: 1)
Author: Steve Hunt <steve@karinya.net>
Date: Thu, 28 Aug 2008 17:57:28 +0100
Well, the new fan came today - an Orion, would you believe. I soon had it fitted. Result - slightly noisier than the original one - oh dear! While checking everything over with the new fan I ran the
/archives//html/TenTec/2008-08/msg00436.html (9,716 bytes)

15. Re: [TenTec] Hercules II fan noise (score: 1)
Author: "Art Roberts W5AER" <w5aer@comcast.net>
Date: Thu, 28 Aug 2008 14:09:34 -0500
Sounds like a BIG OUCH in the making :) -- 73 Art W5AER Houston (we have a problem) _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.c
/archives//html/TenTec/2008-08/msg00437.html (8,836 bytes)

16. Re: [TenTec] Hercules II fan noise (score: 1)
Author: "Robert Close" <rclose@nhwisp.com>
Date: Thu, 28 Aug 2008 17:21:54 -0400
Having had my finger hit several rack fans over the years I can share the experience: You hear this funny little "pizzng" sound, then a few moments later you feel something that gets you to take a lo
/archives//html/TenTec/2008-08/msg00438.html (10,205 bytes)

17. Re: [TenTec] Hercules II fan noise (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Thu, 28 Aug 2008 11:24:03 -0400
Try moving the finger guard further away from the fan. A small increase in spacing is often a big help. _______________________________________________ TenTec mailing list TenTec@contesting.com http:
/archives//html/TenTec/2008-08/msg00444.html (10,855 bytes)

18. [TenTec] Hercules II fan noise (score: 1)
Author: John Farler <k4avx1@windstream.net>
Date: Tue, 20 Nov 2018 20:30:42 -0500
My Hercules II fan seems kinda loud.  I have no way of knowing whether there's a problem, but the ads, of course say it's a quiet fan.  This might be something I can fix, if it is going out. Can anyo
/archives//html/TenTec/2018-11/msg00074.html (7,326 bytes)

19. Re: [TenTec] Hercules II fan noise (score: 1)
Author: "Mike Cumbo" <mcumbo@triad.rr.com>
Date: Tue, 20 Nov 2018 20:40:04 -0500
I never hear mine. Mike, ND4S My Hercules II fan seems kinda loud. I have no way of knowing whether there's a problem, but the ads, of course say it's a quiet fan. This might be something I can fix,
/archives//html/TenTec/2018-11/msg00075.html (7,887 bytes)

20. Re: [TenTec] Hercules II fan noise (score: 1)
Author: Michael Chowning <mike.chowning@mgccc.org>
Date: Tue, 20 Nov 2018 21:03:22 -0500
Hi, John! I dug up this old comment on fan noise on the ten ten reflector: the the piece it keep Dont know if that helps, but it may help.. Mike, N8TTR _______________________________________________
/archives//html/TenTec/2018-11/msg00078.html (9,214 bytes)

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