[NLRS] Power supply question. SEC-1223 Fan

[Dave Aho]

Scott, 

    Come to think of it, I don't remember the fan on
mine coming on...or if it did it was for a brief
second or so when we were testing it out with a brick
running about 250 watts (supposedly drawing close to
25 amps)..plus the radio used in the test was attached
to the supply also.  When I have used it on the TS
120S it never came on...even in a constant FD
operation last year when I ran a pileup.  It has not
really ever gotten severely warm or has really made
those strained grunting noises..*LOL*, but it does
supply power for a good 250+ Watt (on the meter) heavy
test with no problem.  I have also not noticed a lot
of hash noise..if there is some it is VERY miniscule. 
I want to pick a few more of these up myself...the
only thing I wish it had was a front panel meter, but
I suppose that is an easy project to remedy.

        Dave....N9TTX
--- "Scott L." <kb0nly@svtv.com> wrote:
> That brings up a question that I have.  Is there
> anyone out there using the
> Samlex SEC-1223 that have experienced the fan
> running in this supply?  It
> has a fan so it must be used on occasion, however, I
> have pushed it to 23
> amps draw for long enough periods of time to cause
> it to become warm to the
> touch, but the fan has yet to run.  Does this supply
> have to literally cook
> before the fan is required for cooling??  I haven't
> had any problems with
> it, and intend on buying another one to run some
> other accessories.
> 
> Just a thought!
> 
> 73,
> 
> Scott, KB0NLY
> 
> 
> ----- Original Message ----- 
> From: "Clair J. Robinson" <cjr@visi.com>
> Cc: "NLRS" <nlrs@mailman.qth.net>
> Sent: Monday, May 26, 2003 8:50 PM
> Subject: Re: [NLRS] Power supply question.
> 
> 
> > I also have a Samlex SEC-1223 which I use to power
> an FT-897. I have
> > heard no noise from it whatever. It gets ever so
> slightly warm when in
> > use and I don't think I have ever heard the fan.
> The board inside, as
> > near as I can tell, is identical to that in the
> Yaesu FP-1023 and also
> > to that in the Radio Schlock 23 amp switching
> supply. A friend, K0LR,
> > bought on of the RS units on sale and finds no
> noise or other problems
> > with it, either. Best thing is that they are so
> light weight.
> >
> > 73, CJ K0CJ
> >
> > "Scott L." wrote:
> > >
> > > I really like the Samlex SEC-1223 for running my
> FT-847.  No power
> supply noise here, and it supplies all the power I
> need.  Also, it is almost
> exactly the same as the Yaesu FP-1023 when you look
> inside both of them.
> Coincidence?  I think not, it looks as if Samlex
> produced the power supplies
> that Yaesu put there name on.  Take the covers off
> both and you will see how
> similar they are.  And the Samlex costs under a
> $100.
> > >
> > > Yep, the 6m opening yesterday was fantastic. 
> Had a friend stop by, and
> he asked me if I was tuning around and listening on
> 20 meters, then when he
> saw the display and the frequency his jaw dropped!
> > >
> > > 73,
> > >
> > > Scott, KB0NLY
> > >
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