On Thu, 27 Jun 2013 04:09:09 +0000 (UTC), gregz
wrote:

micky wrote:
On Wed, 26 Jun 2013 06:27:33 +0000 (UTC), "Danny D."
wrote:

On Tue, 25 Jun 2013 22:39:27 -0700, franklin.macintosh wrote:

the more recent ones I've bought exude the oil/plastic smell

My DeWalt portable drill always smells like ozone, the moment I use it.

Ozone is generated by motor brushes, maybe especially when there is
sparking between the brushes and the commutator. My Lionel train
smelled of ozone. I miss the smell.

Almost no consumer fans have brushes. (I'm not saying other fans
do.)

You'r e right. I should have said almost no AC consumer fans.

Brushless fans depend on current being AC to induce current in the
rotor.

DC fans have to have brushes, iirc.


Dunno why ... but I'll lurk on this thread to find out what
causes that particular odor ...

I have a dc fan in the trailer, but it blows out. It also has a dc heater/
blower fan in the propane heater.

Greg