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Re: Weather/coil performance

Original poster: Mike <megavolts61@xxxxxxxxx>

Hey Paul,
I guess I didn't interpret your graphs as well as I though. I saw what appeared to be pretty good variations, but maybe the scale was not as large as I thought. Plus my memory is good...but it doesn't last very long. lol

Mike (megavolts61) wrote:

> I just saw graphs of Pauls on the effects of humidity,
> and it seems there is a significant drop in the Q of a
> coil.

Humidity didn't seem to have an effect, so long as there
was no condensation.  As soon as temperature falls below
the dew point, condensation forms on surfaces within the
field of the coil and the Q falls.

Results from the outdoor coil measurements where curious,
with, at times, some fairly rapid Q variations.  It would
be nice to investigate these things further, but the
results we got stopped me worrying too much about the
fact that measured Q is always a lot less than predicted,
and that measurements vary from day to day.

Paul Nicholson
Manchester, UK

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