[Elecraft] Re:ASTRON RS-35 or SS-30 supply - OK for K2/100?

Sat Dec 21 21:41:00 2002

George,
    Isn't the PS-125 a great supply?  When I bought my 756PRO, there
was no free offer like yours because the PS-125 wasn't available yet
so I ended up paying a pretty penny for mine.  It seems to me that it
was about $300 but I may be all wet.  I used a RS-35 for a while until
I just couldn't take the transformer hum any longer so I gave it away
when the PS-125 arrived and now it is piece and quiet around here.

John
K7SVV
[email protected]
K1 #1378, K2 #2569, SST 20, Rock Mite 20, Rock Mite 40, Nor'Easter

----- Original Message -----
From: "George, W5YR" <[email protected]>
To: "Bob Nielsen" <[email protected]>; <[email protected]>
Sent: Saturday, December 21, 2002 4:05 PM
Subject: Re: [Elecraft] Re:ASTRON RS-35 or SS-30 supply - OK for
K2/100?


> I haven't done a thorough check, but the PS-125 I received with my
new
> IC-756 PRO2 appears to be silent both acoustically and electrically.
> Slight fan noise only which I can't hear with the cans on.
>
> After reading the dismal report on the PS-85 I was not thrilled by
the
> prospect of getting a PS-125, however "free", but it appears to be a
> great little switcher.
>
> 73/72, George
> Amateur Radio W5YR -  the Yellow Rose of Texas
> In the 57th year and it just keeps getting better!
> Fairview, TX 30 mi NE of Dallas in Collin county EM13qe
> K2 #489  IC-765 #2349 IC-756 PRO  #2121 IC-756 PRO2 #03235
>
> ----- Original Message -----
> From: "Bob Nielsen" <[email protected]>
> To: <[email protected]>
> Sent: Saturday, December 21, 2002 12:39 PM
> Subject: Re: [Elecraft] Re:ASTRON RS-35 or SS-30 supply - OK for
> K2/100?
>
>
> > QST published reviews of several switching power supplies in
January
> > and September, 2000.  If you are a member, the are available from
> the
> > ARRL web site.  Most of the supplies have noise which increases
> below
> > 10 MHz, but the MFJ-4225MV, Kenwood PS-40 and Diamond GZV4000
appear
> to
> > have the least noise at the lower frequencies (measurements were
> made
> > from 1.5-100 MHz).  The Icom PS-85 appears to be the noisiest.
> >
> > I have the Alinco DM-330MV, which looked about the best at higher
> > frequencies and have not noticed any noise on 160, but I am
> > antenna-impaired on that band so have very little experience
there.
> > This supply has an adjustment where you can move the noise
frequency
> > around, but I have yet to see any effects.
> >
> > 73,
> > Bob, N7XY
> >
> >
> > On Fri, Dec 20, 2002 at 02:15:49PM -0500, [email protected] wrote:
> > > I am currently using my Kenwood PS-30 linear power supply
without
> any noise
> > > on 160 meters.  I am on the edge of maximum current draw for it
at
> 16 A
> > > continuous with the KPA100.  I am looking for a quiet switcher
at
> 25 A.  Is
> > > there any switcher power supply that is quiet on 160 meters?
> > >
> > > 73 & Seasons Greetings,
> > >
> > > Rod WA9GQT  K2 #1900 with KPA100
>
>
> _______________________________________________
> Elecraft mailing list: [email protected]
> You must be a list member to post to the list.
> Postings must be plain text (no HTML or attachments).
> See: http://mailman.qth.net/mailman/listinfo/elecraft
> Elecraft Web Page: http://www.elecraft.com