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Re: Speedo Fun

To: Mike Lishego <mikesl@tartan.sapc.edu>
Subject: Re: Speedo Fun
From: Trevor Boicey <tboicey@brit.ca>
Date: Mon, 14 Dec 1998 03:12:31 -0500
Mike Lishego wrote:
> 
> >PPS: I've cleaned and reconnected the panel light dimmer and put in
> the
> >brighter Radio Shack #50 bulbs.  Wow they are bright!  Mike's
> lasted what,
> >8 months before one blew lets see how long mine last.
> 
> Uhhh...Skye, did I mention that since I put all mine in at the same
> time, they all blew within a week of one another?  8-)  I guess
> that's the price you pay for progress!

  While they are all running, the current draw through
the "feeder" line is highest, and so is the voltage drop
across the feed wire. So, the voltage at each bulb is
lowest.

  Once they start to go, the current draw for the circuit
falls, and so does the voltage drops along the way. So the
bulbs start to get a little more voltage. Actually, with
the state of a lot of LUCAS connectors out there, the
"little more" might actually be more than a little.

  So, it really might be more than bad luck causing them
all to go.

  (of course, this only applies if you didn't replace
each one as it went out)

-- 
Trevor Boicey, P. Eng.
Ottawa, Canada, tboicey@brit.ca
ICQ #17432933 http://www.brit.ca/~tboicey/

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