Hi.

I used switching supplies for a while, but have gone back to linear 
supplies.  I too was plagued with noise problems.  Not just RF noise, but 
in some cases the cooling fan proved to be annoying, so I've gone back to 
the trusty old Astron RS20A, 35, and 50.

73, de Lou K2LKK



At 09:43 PM 11/11/2008 -0500, you wrote:
>     Pat and all:
>
>I agree with what you have said here.  However, I have found the Samlex
>variety of switching power supply to be the least prone to the hash problem.
>
>I have used one now in my motor home with my HF set-up, and have no
>complaints whatsoever.
>
>73 from Tom Behler:  KB8TYJ
>
>----- Original Message -----
>From: "Pat Gormley" <[log in to unmask]>
>To: <[log in to unmask]>
>Sent: Tuesday, November 11, 2008 9:17 PM
>Subject: switching supplies cause interference
>
>
> > Most switching supplies I've used tend to cause a lot of radio =
> > interference and  you have to be certain its rating is equivalent to =
> > what you have in a transformer supply because the voltage regulation may =
> > suffer a bit. 73- pat kk3f
> >
>
>
>--
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>7:32 PM

Louis Kim Kline
A.R.S. K2LKK
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