[Elecraft] Reliable DC Power Supply for K3/P3

[Paul M Dunphy]

On 11/19/2013 10:41 AM, Jim - KE8G wrote:
> Hi Bob,
> This is a question that comes up from time-to-time and you will get a multitude of answers!
>
> Personally, I have a couple of the Astron Power Supplies RS-35M and think they are fantastic.  One of these is more than enough to run 24x7 and handle the K3/100 with plenty to spare.
>
> Just my .2 cents.
>
> 73 de Jim - KE8G
>
>

     I'm using a cheap switching PS . . . a SPS-400MA (12V, 40A):

http://www.409shop.com/409shop_product.php?id=104969

     I have NO affiliation with that web site nor the manufacturer of 
the PS!  I also see those guys no longer have it "The item you are 
trying to view does not exist or was suspended by the site admin."  I'm 
sure it can be found elsewhere on the Internet of from local re-sellers.

     Anyhow, it replaced an Astron 1.5 years ago and is 1/4 the size or 
smaller. Been running 24/7 since I got it and it powers the entire 
shack.  No birdies, although there is a knob to "move" them if they are 
there.

     I took a chance on buying this (less than $200) and I'm very happy. 
  90-95% efficiency with switching supplies, very small and not 
expensive.  I wasn't optimistic, but it chugs right along . . .

     The Astron is now the backup.

73, Paul VE1DX