> I built a dummy load consisting of 4 x 200 ohm globars in parallel.
> Each resistor is 12 inchs long x 1 inch OD.
> Each resistor resides in its own 3 inch od x 12 inch long AL pipe.
> All 4 x AL pipes are heliarc welded together.
> The entire mess will sit in a 7 gal new paint can. A 5 gal can +
> top part of a 2nd can were brazed together.
> A 7-16 DIN was installed dead center in the top lid....along with a
> pressure relief tube, off to one side.
> Instead of xfmr oil, can distilled water be used instead ??
> It will only be used on 160-10m..and maybe 6m.
> If something goes terribly wrong, Id rather have water all over the
> basement floor vs oil. Distilled water is
> an insulator. Heck, Bird + CD have water loads that use tap
> water. AG6K depicts a hb water load...with a
> single 500W resistor inside some pvc tube and a garden hose fitting
> on one end....and coax connector on the
> other end.
> I realize water boils at 212 F. Has anybody tried distilled water
> in a 1 gal dummy load ? Is it still 50 ohms ?
> Jim VE7RF
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11/08/2013 15:38
My 10kW Bird 8738 water cooled load has tap water which I believe si
in direct contact with the resistive element, and is still working
fine so I don't see why not.
--
Best Regards,
Chris Wilson.
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