[Icom] A question of cooling.

[Michael P. Olbrisch]

Good morning,

	I just got done pulling annual maintenance on my IC-781.
Replaced the battery, brushed out the dust, stuff like that.

	Now the questions.  Time for the experienced experts to
weigh in on another idea.

	Several individuals on this list have mentioned that the
IC-781 runs hot.  Of course, mine is no exception.  I have removed
the speaker and speaker cover long ago to allow better air flow 
as some have mentioned.  I also have a small muffin fan gently 
blowing on the regulator area of the back.  This helps, but it is 
still warm to the touch.  I have considered regulating the AC power 
to 100 volts, but have not done that yet.

	In cleaning the radio, I did remove the covers to the 
regulator and final areas to remove dust.  I noticed that while
the final area is vented, the regulator area is not.

	At work I have the equipment to punch holes in metal.
Nice heat holes, from 1/16th inch up to 2 inches or larger.  I 
was wondering, anyone think it might be good for the heat
problem to punch a few holes in the upper and lower areas of
the regulator cover to aid in cooling it?  If so, would this have
an adverse effect on final cooling?  I expect I would use the
1/4 inch punch, and 5 or 6 holes both upper and lower.

	All comments welcome.  Thanks for taking the time to
send your opinions.

Mike.

My E-mail address: mailto:kd9kc@elp.rr.com
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