Re: Strange Blue Glows Re: [TCML] Energy accumulation on TC.

[Scott Bogard <teslas-intern@xxxxxxxxxxx>]

I have seen the faint blue glow, it may indeed be x-rays.  It also may 
be sublimated tungsten.  Like mercury vapor, only tungsten vapor.  I 
know tungsten is really tough when it gets hot (which is why we coilers 
like it), but on a few occasions I noticed a fat, bright blue trail 
between breaks in the filament of a 40 watt bulb, among the other purple 
orange plasma filaments.  This trail persisted at least a full second 
after the power was cut, telling me it was difficult to ionize in the 
first place.  Perhaps this has already been discussed, I have not been 
following this thread.

Scott Bogard.

Harold Weiss wrote:
> I have seen it too.  I had an old light bulb (clear) and would glow 
> green when energised.  The glass would glow a faint green for a few 
> minutes afterwards.  In this case it was probably due to X-rays.  One 
> neat thing when energised was the magnified image of the broken 
> filiment on the glass. The filiment would dance around and the image 
> would move also, but you could make out the coil of the filiment in 
> the image.  I should try some X-ray pics with that bulb.
>
> David E Weiss
>
>>
>> FWIW, a coupla weeks ago I stuck a used ~400 Watt  HPS bulb up on the 
>> toroid
>> and ran arcs through it for several minutes.  Afterwards everybody 
>> noticed
>> that the arc tube glowed a faint blue/violet for a  coupla minutes 
>> afterward.
>>
>> -Phil LaBudde
>
>
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