Date: Tue, 7 Sep 1999 21:55:04 +0200 (MEST) From: wim@djo.wtm.tudelft.nl To: cp@opus.hpl.hp.com Message-Id: <aabcdefg3175$foo@default> Subject: Re: Fluorescent lights
> From: "chris" <drosera@CAM.ORG>
> Subject: Fluorescent lights
...
> one of them is making alot of noise, like the hum one often hears
> from these lights, but extremely loud. Does anyone out there know
> why this might be happening and what I could do about it? (I'm
> going to have to change the ballast aren't I?)
As you already said, just change the el-cheapo solenoid to get rid of the
noise. It's not dangerous. You are using alternating current. That
introduced an aternating magnetic field in the solenoid. The inner parts of
it are not as solid as you would like and something is capable of moving/
trembling with the magnetic field inside. That's what you hear.
Little chance that you can fix that.
> [HTML file part2 deleted by listprocessor]
And HTML should never be present anyway.
Regards, Wim.
----- wim@djo.wtm.tudelft.nl -----
This archive was generated by hypermail 2b30 : Tue Jan 02 2001 - 17:32:04 PST