A loose white wire (neutral) will make the bulb go out fast...


----- Original Message -----
From: "Don Hyde" <DonH@AXONN.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Monday, July 16, 2001 12:13 PM
Subject: Re: [EE]: Bulb Life -- Burned out bulb resurected


> I would guess that the fixture is trapping heat from the bulb and
> overheating it.
>
> > -----Original Message-----
> > From: Robert E. Griffith [mailto:bob@JUNGA.COM]
> > Sent: Monday, July 16, 2001 11:15 AM
> > To: PICLIST@MITVMA.MIT.EDU
> > Subject: Re: [EE]: Bulb Life -- Burned out bulb resurected
> >
> >
> > I have been having a problem with the light fixture in my
> > kitchen going
> > through bulbs fast (bulbs lasting about a month). This
> > fixture uses the more
> > expensive, large diameter bulbs.  When the last one went out,
> > I did not
> > replace it right away.  Several days later, it came back to life!
> >
> > Since then, it has gone out several times (for 2-7 days) but
> > has, so far,
> > always come back to life.
> >
> > I have measured the voltage in the socket during one of the
> > bulb's dead
> > periods and verified that there is power in the socket (117v).
> >
> > I imagine that somewhere in the bulb is an intermittent
> > short.  The room is
> > air conditioned so temp does not vary that much (except when
> > the bulb is
> > on:)
> >
> > Another strange thing:  Three times now, when other bulbs
> > have gone out in
> > this fixture, the glass bulb separates from the metal socket
> > while the light
> > is on and drops to the table below!
> >
> > So I guess my question is "Should I be concerned that this fixture is
> > haunted?".  Should I call Bill? (Maurry - not Gates)
> >
> > --BobG
> >
> > -----Original Message-----
> > From: pic microcontroller discussion list
> > [mailto:PICLIST@MITVMA.MIT.EDU]On
> > Behalf Of Jinx
> > Sent: Saturday, July 14, 2001 9:54 PM
> > To: PICLIST@MITVMA.MIT.EDU
> > Subject: Re: [EE]: Bulb Life
> >
> > > Ha ha! They don't want to educate you, they want
> > > to keep you as stupid as possible and buying as many
> > > bulbs as possible. Evil empires are like that! ;o)
> > > -Roman
> >
> > Appropriate then that this is posted under an [EE] Evil Empires
> > tag. What truth is there really to planned obsolescence ? Any
> > proven examples ? Light bulbs and tyres spring to mind as
> > products widely believed to be "improvable"
> >
> > btw, as I travel around I pop into the odd electrical wholesaler
> > and always leave a copy of my bulb life web page and some
> > comments from the list (anonymous of course) about extending
> > filament bulb life. Had a few "ooohs" from counter staff as they
> > realised the implications
> >
> > --
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> >
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>

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