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
>