[Elecraft] potentially interesting (sorry, bad pun)

[Jack Brindle]

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
>>
>>
>
> _______________________________________________
> Elecraft mailing list
> Post to: Elecraft at mailman.qth.net
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
>  http://mailman.qth.net/mailman/listinfo/elecraft
>
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com


-Jack Brindle, W6FB
=======================================================================