Scott,

Since you've got a fairly long power cable, you might consider moving the 
supply further away from your operating position.  I know that won't stop 
the fan, but it might diminish the sound enough to make it less annoying.  I 
think you're pretty much stuck with some sort of fan when you have a 
switching supply.  The Astron linear supplies don't have fans, but as you've 
pointed out, they're bigger and heavier than what you have now.  Besides, 
the transformers can be noisy in a different way.

Steve

----- Original Message ----- 
From: "Scott Howell" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, December 20, 2011 19:00
Subject: A quiet power supply please


> Hi all,
>
> I happen to have this Radioshack 25A switching supply lying about and it =
> will do for my TS590 for now. However, with cans on I can hear the fan =
> in that stupid supply and it is incredibly annoying. The fan is not bad, =
> just incredibly loud for such a small thing. I was wondering if anyone =
> had any thoughts on a quieter supply or maybe they are all like this. =
> Now I could get a linear supply I suppose, but I do like the smaller =
> size. So, unless there is little hope of a quieter supply I will try to =
> find something that is reasonable in size/weight.
> In any case thoughts welcome.
>
> THanks,
> Scott/N3BYY
>