Don is right. This is a low duty cycle power supply. For just a few
dollars more ($149), you can find brand a new Astron RS-35A which is
rated at 35 amps ICS. They _will_ take a key down for a long time
without problems. Astron also has a slightly smaller supply (RS-20A,
20 amps) that sells new for about $95 which will also do the job
quite well.
It just doesn't make sense to trust your trusty K2 to a supply with
questionable specs...
On Mar 22, 2006, at 4:58 PM, Don Wilhelm wrote:
Steve,
It looks like 'specsmanship' to me - I looked hard at the 5 amps
continuous
rating and then looked at the high current duty cycle specified and
concluded that it will not support a continuous string of dots no
matter how
you slice it. Duty cycle/sec is a unit of measure that I have
never heard
of and does not make any sense to me - duty cycle is a ratio, and
seconds is
time - what do you call a ratio divided by time? I guess it could be
related to frequency (= 1/t) - a ratio is unitless - as I said, it
doesn't
make any sense to me.
It may be a 5 amp supply with a BIG capacitor.
For the price, there are other switchers out there in the same
price range
that will provide 20 amps ICS with no problem.
73,
Don W3FPR
-----Original Message-----
I've never seen one before, but I am curious ...
http://www.gigaparts.com/parts/profile.php?sku=zgr-hsp-1a
No relationship with the vendor or manufacturer, YMMV,
etc.
... if someone out there has one, please tell what you
think. This would be *awfully* handy for portable
use.
Steve KZ1X/4
K2 #0771, fully loaded and always on
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