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Re: NEON- an easy question
Gary Nutting wrote:
>
> Okay everyone - here's the question. A tube bender nailed me with this question
> today, and after not liking my guesstimated answer I promised to submit the
> scenario to the educated peers. Without taking into effect the termination
> theory of Dirk which might prevail in this case, or taking into account the
> questionable pumping, bombarding which is a concern --- here goes -- will
> electronic transformers cause mercury tubes to stain. The bender did a job
> outside using core and coil transformers -- no staining. The interior around
> windows was done, mercury tubes, using electronic transformers. Accordingly
> all the interior "stained". Supposedly, over a foot in length coming from both
> electrodes, and in some cases, the entire tube. When questioned as far as
> staining or dimming, she swears it's staining. The transformers in question
> are Bertonee, and since I don't happen to prefer that brand --------. So guys,
> and gals, give a guess ----- keep it simple and straightforward ----so I can
> explain your answers to her. If it so happens that your answers agree with mine -
> then I can just call and say I was right. My guess was to "send for the terminator". ha.
> Thanks
> Gary L. Nutting
> Neon Products of Phoenix
Hi Gary, I would like to give your question a shot. Maybe I will win
an all expense paid trip to Hawaii. :->
Could it be mercury migration? I thought that that may have been the
case until you said it is coming from both ends. I have seen a case of
mercury in the "Kwik Kopy" window sign. The 6 foot border around the
9mm red double stroke lettering was totally out (except for about an
inch at one electrode). I offered to make the tube new for the
customer. Just for kicks, I put the border on my 15k60ma and the entire
tube came up to full brightness. Here was an example mercury migration
where the fix was a core and coil transformer.
I am curious what others will say.
Take it easy...
Howie
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