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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+Alternative\s+cooling\s+strategies\s+for\s+SB\-220\?\s*$/: 48 ]

Total 48 documents matching your query.

41. Re: [Amps] Alternative cooling strategies for SB-220? (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Fri, 18 Dec 2009 11:43:53 -0600
If you are concerned about the heat and are running data 100% d/c for 30 seconds I'd simply drop the exciter power 50%, retune the amp and forget about any cooling mod. 73 Rob K5UJ __________________
/archives//html/Amps/2009-12/msg00439.html (8,455 bytes)

42. Re: [Amps] Alternative cooling strategies for SB-220? (score: 1)
Author: "Bill W5WVO" <w5wvo@cybermesa.net>
Date: Fri, 18 Dec 2009 11:42:33 -0700
And sacrifice 3 dB on these weak-signal modes where 3 dB is often the difference between "nil" and "solid decode"? If that's the only alternative, I'd rather listen to the fan noise. :-) But I am loo
/archives//html/Amps/2009-12/msg00444.html (9,675 bytes)

43. Re: [Amps] Alternative cooling strategies for SB-220? (score: 1)
Author: Vic K2VCO <vic@rakefet.com>
Date: Fri, 18 Dec 2009 10:51:19 -0800
That's what I did with my SB-1000. Here's a comment I posted at the time: -- In my quest for a quiet SB-1000, I replaced the fan. The original is a Nidac TA450AC, which is rated at 68 cfm and operate
/archives//html/Amps/2009-12/msg00446.html (9,588 bytes)

44. Re: [Amps] Alternative cooling strategies for SB-220? (score: 1)
Author: "Mike using AT&T" <k9mk@flash.net>
Date: Thu, 17 Dec 2009 15:48:47 -0600
The 70V uses a 3CV1500A7. Instant on and water cooled, it does not get better than this... Mike K9MK --Original Message-- From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On Beh
/archives//html/Amps/2009-12/msg00487.html (12,928 bytes)

45. Re: [Amps] Alternative cooling strategies for SB-220? (score: 1)
Author: Dave White <mausoptik@btinternet.com>
Date: Thu, 17 Dec 2009 20:26:57 +0000
If my memory serves me correctly the Stanley Steamer was actually a vapour phase tube (a 3CV** or 4CV** as opposed to a 3CW** etc) in a boiler rather than a water cooled tube. Eimac published this as
/archives//html/Amps/2009-12/msg00489.html (10,157 bytes)

46. Re: [Amps] Alternative cooling strategies for SB-220? (score: 1)
Author: texasrf@aol.com
Date: Thu, 17 Dec 2009 16:26:53 EST
You can narrow it down to only 10 issues by referring to the yearly index in the December issues in those days. 73, Gerald K5GW In a message dated 12/17/2009 2:17:39 P.M. Central Standard Time, mauso
/archives//html/Amps/2009-12/msg00493.html (9,726 bytes)

47. Re: [Amps] Alternative cooling strategies for SB-220? (score: 1)
Author: Ryan Foster <foster.ryan@gmail.com>
Date: Sat, 19 Dec 2009 15:17:53 -0500
I don't know if this is going to help or matter 43 posts later, but I can never seem to make fans quiet enough for me either, but I do find squirl cage types when you can use them quieter generally,
/archives//html/Amps/2009-12/msg00498.html (9,067 bytes)

48. Re: [Amps] Alternative cooling strategies for SB-220? (score: 1)
Author: gdaught6@stanford.edu
Date: Sat, 19 Dec 2009 21:27:28 -0800
Mike wrote... Not water cooled! Vapor cooled. It evaporates water to get rid of the heat. That's much more effective than water cooling. 73, George T Daughters, K6GT CU in the California QSO Party (C
/archives//html/Amps/2009-12/msg00506.html (10,127 bytes)


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