Re: [CAD_CAM_EDM_DRO] Work lamps?

In a message dated 20-May-02 15:09:18 Central Daylight Time,
johnhe-uk@... writes:

> The glass of the bulb appears to
> be silvered all over on the inside (Any ideas why?)

John: Was this a "halogen" bulb to begin with? If so, perhaps SOMETHING
happened to let in atmospheric gas which would disrupt the halogen redox
reaction (one which I never understood, yet) and the "slver coloration" is
the metal of the filament itself which has been "sputtered" onto the glass.
A permanent "fix" for that poor light-bulb!

But £50 for a little light-bulb?? SOMEthing is wrong! One should not cost
more than £1.- ! Sounds like an automobile bulb might fit! Take the
"dead" on by auto-parts shops and ask the gurus behind the counter! If an
"ordinary" incandescent that fits doesn't emit sufficient light, then you are
kinda "stuck" for a real halogen. They DO emit amazingly more lumens/watt
than ordinary incandescents!

Jan Rowland, aka old troll


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