I have the same supply as Gary.  Alinco classifies it as communications 
supply and it lives up to that standard.  The price is very reasonable for 
the quality.

73:
Bob Martin

----- Original Message ----- 
From: "Gary Lee" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, April 02, 2014 1:13 PM
Subject: Re: Power Supplies (Switching or Not)


> ok.  the major advantages of the switching supply are size, weight, and
> eficiency.  They are smaller, lighter, and more power efficient.  Also,
> usually sound quieter.
>
> Disadvantage is that many if not most create rf noise.  The better ones 
> are
> pretty darn quiet.
> I have the alinco dm330v and it is pretty quiet in the ham bands.
> However, it does make a good deal of noise on am broadcast.  This can be
> moved around so as not to interfere with the station to which you are
> listening via an adjustment on the supply.
>
> This has been a very good supply for me.  32 amps surge, and smaller than 
> a
> shoe box.  weighs maybe 5 pounds.
>
> However, I also have an mfj 35 amp surge supply. This is a conventional
> supply, weighs about 20 pounds, and is roughly comparable to the astron of
> the same rating.  No rf noise, but is considerably louder.
>
> There are other switchers, the  most highly rated I have heard of are the
> alinco, astron, and gamma research.
> The gamma research is interesting because it is well regarded, and 
> extremely
> small; more like a laptop charger in size.
>
> Hope this helps.
>
> ----- Original Message ----- 
> From: "Dave Basden" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Wednesday, April 02, 2014 12:48 PM
> Subject: Power Supplies (Switching or Not)
>
>
>>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