[Elecraft] Nifty little power supply: Gamma Research HPS-1a

[David Cutter]

I'd say that is "cost effective" design as long as the user is aware of the 
limitations.  If speech compression is used extensively, then the average 
current will rise and the psu might fold back to protect itself. 
Interesting idea, certainly good for cw.  Lightweight is good for 
dxpeditions.

Along similar lines I heard of a group that used small battery chargers and 
locally borrowed batteries run from generators that proved effective.  It's 
a similar idea, ie charge storage, like charging batteries from solar cells 
over a long term then discharging in the short term.

David
G3UNA


----- Original Message ----- 
From: "Bill NY9H" <ny9h at arrl.net>
To: "peter gerba" <gerbaphoto at sbcglobal.net>; "Robert Tellefsen" 
<n6wg at comcast.net>; <craig at powersmith.net>; <Elecraft at mailman.qth.net>
Sent: Saturday, April 21, 2007 4:18 AM
Subject: RE: [Elecraft] Nifty little power supply: Gamma Research HPS-1a


> not too fan or RF noisy at all,,,
>
> i HAD to check it out ,,,
> so i looked  it's actually a 5 or 8 amp supply feeding the ultracaps,,,
> I found the oem switcher in either mouser or digikey as well as the 
> caps,,,,
> gamma did a great job packaging it ,.,,,,
> I also think a thinner ac cord would be in order,,,, for my 
> pelican/portable set.
>
> and works fine with the k2-100 ssb or cw,,
>
> I heard little rf noise, but the antenna was right at the rig,,,,,
>
> bill
>
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