Hi

The only bad thing I have ever heard about switching power supplies was that 
some of them made interference on certain harmonics. However, these may be 
issues that have been delt with already, and if the interference is on a 
frequency you don't use, it is rather a non issue.

I hope this helps.

God bless,
Mark

-----Original Message----- 
From: Pat Byrne
Sent: Wednesday, April 02, 2014 2:09 PM
To: [log in to unmask]
Subject: Re: Power Supplies (Switching or Not)

Dave,
I have used both the Icom switcher and a Jetstream switching
supply.  I have been impressed with both of them.  They have run my
Kenwood TS850 and Icom IC756 PRO III effectively and quietly.  So, if
ever the two old Astron 35 amp. linear supplies give up the ghost,
I'll have fall back.  But the Astrons may well run longer than me!
Pat, K9JAUAt 11:48 AM 4/2/2014, you wrote:
>I may be in the market for a new power supply for my Kenwood
>TS-590.  I hate to pay the price of a Kenwood PS-590, so am looking
>elsewhere.  It should probably be about 25 amps 13VDC.  Switching
>power supplies seem to be about half the price of the old
>standard.  They're also a lot lighter in weight.  There must be some
>advantage to the old standard supplies or they wouldn't still be
>available.  What is the difference and why should I consider the more
>expensive standard supply?
>
>73,
>
>Dave, W7OQ