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Hi David,
Was it one particular component overheating in the bull
horns?
Could it not have had a heat sink on it that maybe
extended into the water?
I've been looking into the heating issue a little bit,
with referance to my
pulse width modulators. They have a couple of Mosfetts
that get quite hot.
I saw one PWM (on a truck) wich was only 12 volt 30 amps
& had heat sinks
that extended out of its casing
& a fan to cool the heat sink. However I
Googled & couldn't find any referance to them being a
fire hazard.
Alan
----- Original Message -----
Sent: Saturday, July 10, 2010 12:33
PM
Subject: [PSUBS-MAILIST] donation
Earlier this past Spring while researching
underwater camera systems and periscope optics, I purchased a simple
underwater camera with self contained lighting. This system could be lowered
down to up to 60' and with the accompanying monitor brighten and clearly
reveal anything within a few feet of this camera even if the water is very
cloudy.
Having found this particular system not to meet
my present requirements and realizing the local rescue squad could really make
use of this simple and portable tool to locate drowning victims, I donated it
to them.
Tomorrow my two boys and I get a picture taken for
our local paper to hopefully solicit further funding for this good local
cause.
This camera system was donated in the name of PSUBS.org
and was a good way I could see to promote our sport even though no actual
submarine was ever involved.
We have also donated hand held
bullhorns to the local school in this way obtained from earlier transducer
testing. The electronics when confined tended to overheat and thus were not of
use to us. Calling kids to to the bus as school let out seemed a much better
purpose for these.
There may be things you
may find unsuitable in the quest for things submarine that also could be
used to promote good will in behalf of our sport in your local area. So before
you let gather dust on a shelf or simply gets thrown away, give this some
thought.
David Bartsch
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