Re: Noise with KX1 and Powerwerx supply

Posted by Dennis Moore on Nov 16, 2011; 3:12pm
URL: http://elecraft.85.s1.nabble.com/Noise-with-KX1-and-Powerwerx-supply-tp6999957p7000689.html

I'm using a Powerwerx switching supply I picked up last week, testing it
out in place of my regular Astron RS-35M to run my K3/P3. So far I
haven't run into any noise issues with it, seems to be working as well
as the Astron.

73, Dennis NJ6G

On 11/16/2011 2:38 AM, Jeff Cathrow wrote:
> John, KK4BOB; the whooshing dishwasher noise you describe is coming from your switching power supply---that's exactly what was driving me nuts until I got a linear supply into my system.  The culprit was an Astron switcher but it was almost 15 years old when it started acting up in such a noisy fashion.
>
> This is my first posting/email to the digest; hope it gets through properly!
>
> Best regards,
>
> Jeff,  NH7RO

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