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Switching Power Supply

Subject: Switching Power Supply
From: Bob Patten <n4bp@bcfreenet.seflin.lib.fl.us> (Bob Patten)
On Tue, 6 Feb 1996 WD5N%mimi@magic.itg.ti.com wrote:

> This info was passed around last year, time to go again I guess:
> The Icom PS-35 is light (about 5 or 6 lbs) and small.  It was
> designed to be the optional internal supply for a variety of Icom
> rigs.  I had to call several supply houses before finding availability
> from Ross.  Not overly cheap, I think it was about $200, or maybe
> a little less.  Changing a jumper inside allows operation from 220V.
> The only problem: it is not designed for 100% duty cycle, so you
> can't use it for a 100-watt rig in an RTTY contest!  Several folks
> have reported using it for dxpeditions with no problems.
>  
I've been using one for almost 15 years with my TS-430S.  I found one for 
$50 and have never used anything else with the rig.  It's been on several 
DX-peditions and endured many CONTESTs.  It came with a small 120v fan 
which I mounted atop the heat sink, but it's probably not even needed...


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