[Amps] Distilled water in a dummy load ?

[Richard Solomon]

Better yet, a Bird 8890. 2,500 Watts CCS.
Max SWR 1.25 to 2 GHz.

Snagged one of the auction site a few years
ago for short money.

73, Dick, W1KSZ

On Tue, Feb 23, 2021 at 1:31 PM Bob Darlington <rdarlington at gmail.com>
wrote:

> Guys, c'mon.  Bird 8201.    $200 used, 500W continuous forever, 5kW short
> term.   Air cooled, oil (mineral) filled, parts available, QC connectors
> like on our Model 43 meters, 1.25:1 max out to 2.5GHz,  and it'll outlive
> all of us.   Sure, I can make mine slightly warm to the touch txing RTTY at
> the legal limit into it, but otherwise it stays cold to the touch doing
> anything else.
>
> -Bob N3XKB
>
> On Sun, Feb 21, 2021 at 1:46 PM MU 4CX250B <4cx250b at miamioh.edu> wrote:
>
> > My instinct is that mineral oil would be a better coolant than
> > distilled water, with no corrosion issues.  You can buy it at any
> > pharmacy, and while it isn’t rated at quite as high a temperature as
> > transformer oil, it works quite well. I used it in a Cantenna for 30
> > years! As I recall, it was recommended byHeathkit  as a substitute for
> > transformer oil.
> > 73,
> > Jim w8zr
> >
> > Sent from my iPhone
> >
> > > On Feb 21, 2021, at 1:35 PM, Geert Jan de Groot <pe1hzg at xs4all.nl>
> > wrote:
> > >
> > > 
> > >> Is it possible to use  distilled water in a hb  dummy load ?
> > >> DL  consist of  4 x  200 ohm globars, wired in parallel..in an 8
> gallon
> > container.
> > >> I welded  4 x 3 inch OD  thick wall Alum pipes together, 2 stacked
> > above 2.
> > >> One resistor resides  dead center in each alum pipe.   Each resistor
> is
> > a
> > >> new  globar  type  SP,  12 inches long  x 1 inch in diameter.
> > >
> > > Personally, I'm using the Ameritron ADL2500, which is 4 hefty resistors
> > in a case with a fan. I modified it so it automatically switches the fab
> to
> > reduce the noise.
> > >
> > > No leakage, no corrosion, no mess if I drop it or I kick it. Much
> > lighter. No dangerous oils, and my shack doesn't smell like a chip shop
> > when I'm doing some testing.
> > >
> > > 73, Geert Jan PE1HZG
> > >
> > >
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