[Amps] Distilled water in a dummy load ?
barberaudio at gmail.com
Mon Feb 22 13:34:04 EST 2021
- or from Amazon.
My wife buys it to fill snow globes and I use a little here and there:
My MRFX1K80N amp uses 90% distilled water and 10% propylene glycol. (pink
RV antifreeze) Just enough to prevent algae from growing in the coolant.
On Mon, Feb 22, 2021 at 9:27 AM Jeffrey L. Bauman via Amps <
amps at contesting.com> wrote:
> I have used mineral oil in my cantenna successfully as well.
> It's most cheaply sourced by the gallon from large animal veterinary
> where it is used as a laxative and coat dressing.
> Good luck.
> w8kzw at arrl.net
> Davisburg, Michigan
> -----Original Message-----
> From: Jim Klein [mailto:k7rdx at charter.net]
> Sent: Sunday, February 21, 2021 8:08 PM
> To: MU 4CX250B
> Cc: Geert Jan de Groot; Amps group
> Subject: Re: [Amps] Distilled water in a dummy load ?
> Palstar DL5K works well for me...No oil,fan cooled from
> On Sun, Feb 21, 2021 at 12:46 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
> > 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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