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Total 8 documents matching your query.

1. [Amps] AL1500 cooling mod? (score: 1): Author: rt_clay@bellsouth.net; Date: Thu, 06 Sep 2007 14:05:45 +0000; Any opinions on this modification to the AL1500? http://techcomnetworks.com/ve2jka/forum/showthread.php?t=177 I currently have the blower on mine set at the highest/loudest speed for contests. I'm su; /archives//html/Amps/2007-09/msg00043.html (7,472 bytes)
2. Re: [Amps] AL1500 cooling mod? (score: 1): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Thu, 6 Sep 2007 12:29:22 -0400; I certainly would never do that mod. First, that series of amps takes cool air in across the electrolytics and then across the transformer. His mod will kill the airflow across the sensitive electro; /archives//html/Amps/2007-09/msg00048.html (7,512 bytes)
3. Re: [Amps] AL1500 cooling mod? (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Thu, 6 Sep 2007 13:04:28 -0400; Why would the electrolytics in the AL-1500 require any special airflow since they are 105* C computer grade and meant to operate in a warm enviroment? You once claimed that those caps were a special; /archives//html/Amps/2007-09/msg00049.html (9,107 bytes)
4. Re: [Amps] AL1500 cooling mod? (score: 1): Author: rt_clay@bellsouth.net; Date: Thu, 06 Sep 2007 17:27:13 +0000; While the specified operating temp may indeed be that high, the operating life of the cap decreases with increasing temperature. I found the following document, http://industrial.rell.com/pdfs/IPG_AN; /archives//html/Amps/2007-09/msg00050.html (9,964 bytes)
5. Re: [Amps] AL1500 cooling mod? (score: 1): Author: Steve Thompson <g8gsq@eltac.co.uk>; Date: Thu, 06 Sep 2007 18:55:13 +0100; Yes, that's the number most manufacturers use - but - the starting point is typically 2000 hours of life at 105C ambient and maximum rated ripple simultaneously. If you come back (say) 20 degrees on; /archives//html/Amps/2007-09/msg00053.html (7,944 bytes)
6. Re: [Amps] AL1500 cooling mod? (score: 1): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Thu, 6 Sep 2007 14:48:13 -0400; The fact they say "105C* has NOTHING to do with being safe to run at 105 or even being "meant" to work at 105. 105C is the absolute maximum temperature to fall within factory MTBF specs. Anyone work; /archives//html/Amps/2007-09/msg00055.html (8,537 bytes)
7. Re: [Amps] AL1500 cooling mod? (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Thu, 6 Sep 2007 17:29:55 -0400; I never said that they should be run at that temperature. The fact that Ameritron was smart enough to buy that extra overhead compared to cheaper 85* C caps is a big plus. Thats been well publicized; /archives//html/Amps/2007-09/msg00057.html (10,331 bytes)
8. Re: [Amps] AL1500 cooling mod? (score: 1): Author: Gudguyham@aol.com; Date: Thu, 6 Sep 2007 17:33:55 EDT; The fact that Ameritron was smart enough to buy that extra overhead compared to cheaper 85* C caps is a big plus. Does QRO Technologies make good amps? Do they use quality parts? Lou ** Get a sneak p; /archives//html/Amps/2007-09/msg00059.html (7,658 bytes)

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