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Re: Topband: Desktop Power Supply Brand/Noise Question

To: topband@contesting.com
Subject: Re: Topband: Desktop Power Supply Brand/Noise Question
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Sat, 20 Jul 2013 08:38:37 -0700
List-post: <topband@contesting.com">mailto:topband@contesting.com>
On 7/20/2013 7:27 AM, Clay Melhorn wrote:
Looking at another "good deal" how do the COOLER MASTER PS's rate for RFC 
filteringor are there others brand I should be looking at?

For about ten years, my computers have been T4x-series Thinkpads, and they have been pretty RF-quiet. Before that, I used the premium PC Power and Cooling power supplies for my computers, and found them RF-quiet. But that was ten years ago, and things can change.

Depending on how the beast you bought is built, you MAY be able to cool it off by winding turns of the power cord through a #31 toroid, and by doing the same with other cables that leave the box. Or maybe not.

Note that the link you posted says almost nothing about EMC -- the only thing is under "compliance," where several safety and EMC standards are cited, with the condition "passive models." My guess is that is a broad as a barndoor spec that does NOT apply to the $40 unit. :)

73, Jim K9YC

73, Jim K9YC
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