[Elecraft] Power Supply?

[Eugene Balinski]

All,

   Please be advised that Astron supplies are generally
over rated.  The RS-20 is rated at 20A peak and 16A
continuous.  It is more like 12 -14 continuous.  I have
seen people try to use them at their "continuous" ratings,
only to have them fail.  The heat sinking is just not
there.  Be careful when using any of the supplies at their
top ratings.  If you need to use one at rated, then put a
good fan on the heat sink.  


73
K1NR



On Sun, 03 Jul 2011 00:17:46 -0800
 "Edward R. Cole" <kl7uw at acsalaska.net> wrote:
> I sure Elecraft can answer this better.  I would make a
> guess that 
> power supplies in much equipment is bought from a vendor
> and 
> installed as a module; the vendor having taken care of
> all necessary 
> certifications.  Perhaps in high volume production the PS
> is ordered 
> to the manufacturers spec but supplied by a vendor the
> makes power supplies.
> 
> The Basecom20 is sold by Motorola but it is identical to
> the Astron 
> R20.  My guess Motorola contracts Astron to manufacture
> the power 
> supply re-labled for Motorola to sell.
> 
> When I was making custom equipment I didn't build the
> power supply as 
> it was cheaper to buy something off-shelf at wholesale.
> 
> 
> 73, Ed - KL7UW, WD2XSH/45
> ======================================
> BP40IQ   500 KHz - 10-GHz   www.kl7uw.com
> EME: 50-1.1kw?, 144-1.4kw, 432-100w, 1296-60w, 3400-?
> DUBUS Magazine USA Rep dubususa at gmail.com
> ======================================
> 
>
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