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ArcticMyst Security by Avery
Unknown Plasma Tube
- Thread starter Eidetic
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- Nov 7, 2008
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That's a HeNe, maybe between 7.5 and 10mW assuming it's 632.8nm.
- Joined
- Jun 19, 2009
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The label says 4.8mW, but at that size, that seems off, unless it's a GreeNe? :thinking:
It doesn't appear to be a Melles Griot tube, unless it's an old old one.
It doesn't appear to be a Melles Griot tube, unless it's an old old one.
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- Nov 7, 2008
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- 5,725
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I like the construction, but I can't really say who made it..
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- Jan 7, 2007
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It looks very old with the ends on the tube. The He has likely escaped from the tube by now. Did you try to light it up?
HMike
HMike
I'm hoping someone recognizes the label style. I haven't yet tried to light it up. There appears to be a getter between the anode pin and the pin next to it, and that looks OK. There's a hole in the little bulge seen on the end of the bore tube near the anode pin that lets the arc get into the bore. Also notice the glass tip-off on the side of the tube near the label.
