Rob a few years ago ARRL did a review of several switching power supplies
including the Samlex (some have mentioned this may be the source of the
Radio Shack unit).
    Alinco DM-330MV and Diamond GZV4000  in September 2000
    Astron SS-30M, Icom PS85, Kenwood PS40, MFJ 4225MV, Samlex SEC1223 and
Yaesu FP-1023 in January 2000
If you're an ARRL member these QST reviews are available on line.
Based on the results I bought the Alinco.  I have been very happy with it.
73,
Rick
VE7TK / VE7ASR
Website:  http://www3.telus.net/ve7tk
------------------------------
Message: 2
Date: Mon, 05 Jul 2004 04:33:26 +0000
From: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>
Subject: [TenTec] RS 25 A 13.8 v. switching supply
To: tentec@contesting.com
Cc: k5uj@hotmail.com
Message-ID: <BAY12-F56uq02IUHPgL0001478d@hotmail.com>
Content-Type: text/plain; format=flowed
Yesterday in my local Radio Shack I happened to discover they are selling
new
25 amp 13.8 v. switching supplies for $99.
These are basic unmetered black boxes:  +- terminals and line cord
on the back, on/off switch on the front panel.  If you are looking for an
inexpensive p.s. you might take a look at one of these.
Rob/K5UJ
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