Re: [Amps] Palstar DL5K 5KW load

[Gary Smith <wa6fgi@sbcglobal.net>]

What about the few of us (like me) that are 13wpm extras? 2.5kw? Eh?
(Wednesday chuckle)
73,
Gary...wa6fgi


Theo Bellamy wrote:
> Haven't you heard? 20 wpm Extras can now run 6kw. It is only fair since 5
> wpm Extras can run 1.5 kw ....
>
>
> Theo K4MO
>
> ;-)
>
>
>
>
> -----Original Message-----
> From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com]On
> Behalf Of Don Havlicek
> Sent: Wednesday, August 31, 2005 10:51 AM
> To: PA3DUV
> Cc: amps@contesting.com; Harold B Mandel
> Subject: Re: [Amps] Palstar DL5K 5KW load
>
>
> 6 Kw output?
> Hmmmmmmm
> Wish we had that opportunity in the USA, but who needs 6 db?
> Don
> N8DE
>
> PA3DUV wrote:
>
> > However, there are some minor flaws in the design of the DL5K.
> >
> > First the long silver plated wire from the UHF connector to the resistors
>
> is
>
> > hanging on the solder joint of the UHF connector. The cheap rubber grommet
> > in the directional coupler box provides no support at all. I have machined
>
> a
>
> > teflon support bushing to replace the grommet which supports this long
>
> lead.
>
> > Also I have bolted the directional coupler box to the chassis in order to
> > remove strain from the broken solder connection to the UHF plug.
> >
> > The DL5K works just fine with the 6 kW output from my 2 x GU84 amplifier.
> > The fan kicks in after approx. 20 seconds and a nice flow of hot air heats
> > my shack in the wintertime. Together with the air flow through the GU 84
> > plate coolers I do not need to fire up the wood burner in the shack.
> >
> > Cheers, Dick
> > PA3DUV
> >
> >
> > ----- Original Message -----
> > From: "Harold B. Mandel" <ka1xo@juno.com>
> > To: <amps@contesting.com>
> > Sent: Thursday, August 18, 2005 12:21 AM
> > Subject: [Amps] Palstar DL5K 5KW load
> >
> >
> >
> >
> > > When opening up the Palstar DL5K dummy load
> > > the owner can spot a ceramic capacitor at one end of
> > > the two load resistors.
> > >
> > > As well, the input line goes through a metal box that serves as
> > > the pickup for the relative wattmeter on the front panel.
> > >
> > > While never approaching the 5KW limit I have seen some
> > > reflected energy from this device at the legal limit area and
> > > wonder if any of you might have encountered this as well.
> > >
> > > I went so far as to swap coax jumpers, etc., to eliminate
> > > cable glitches and the effect followed.
> > >
> > > Hal Mandel/W4HBM
> > > _______________________________________________
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> >
> >
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>
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