The Wizard - Why not?

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Hmmm... at .066" OD and probably a .005" wall thickness, the ID of the metal tube would be around .035". The glass tube must be about .030" OD and has got to have a thicker wall...say like .010", leaving about a .010-.015" ID unless that's some seriously thin sheeeit. How thick is the lead wire at the top? I dont suppose you can get to the tube of a functioning one to run a torch tip cleaner or wire through to clean it. Is the lead wire soldered to the metal tube? The other thin wire has got to be a safety feature in case the tube malfunctions an melts itself loose flying out and burning somebody...thats the only reason I can see.

The lead wire going through the glass tube is .015" diameter. The inner diameter of the metal tube is .047.

Also when I pulled this apart to measure for you (cheap bass turd go buy one :p) I see what looks like a flat ribbon wire or nichrome wire folded over the bottom of the tube where the liquid enters. I'll get a pic of it later today. Geeze, seem to find out something new every day.

You can't run anything through the tube. The glass tube is sealed around the lead wire and you can't get a wire up through the bottome because it's inside the fill chamber almost touching the floor of the chamber.

Yes SV you would like to crack the glass close by or just above where it meets the metal tube. You can just tilted the glass tube until you hear it break, I actually used a long pair of needlenose pliers and crushed the glass about half way down the tube, still working well for me.

Can't wait for your comments butch.
 
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Yea I always look up the hole 1st thing.:)

It is just a basic metal tube, Can't see all the way through due to glass and wire at the other end. This wire looks to just run up through the inside of the tube and I think this is actually nichrome heater wire. It is soldered/spot welded to the outside of the tube.

flatwire.jpg




Close up of the glass to metal tube CLOG location (You can see the thin metal wire I spoke of earlier):
clog.jpg
 

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So that piece of wire would be submerged in fluid right? No wires attached to it why would they put nichrome there...somethings missing?? I beginning to wonder if any of these things are for to hold stuff in place in the manufacturing process....

Yes it is immersed in the fluid but have a look at the end of the tube where the wire travels inside. That is a heat mark where the tube is discolored. That leads me to surmise the wire is getting hot.

I'm going to apply some voltage to this today and see If I can get a decent thermal image with the IR camera. I have a FLUKE Ti50 IR flexcam that may do the trick.
 

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Interesting...wonder why only at the top?

The tube must taper or be thinner at the top then. What do you think?

After seeing the heat profile, and now having this thing out where I can get to it. I measured resistance of just the tube from one end to the other and it is 0 ohms. But if I connect one lead to the bottom (liquid side) and the other lead to the wire coming out of the glass tube, I measure 3.8 ohms. So I'm guessing the glass tube centers the lead wire so it wont short to the metal tube at the top and the large wire entering at the bottom of the metal tube is another lead wire connected to nicrohme wire at the other end near the top. This is why we see the heat profile up near the glass tube.

So all we have is a simple nichrome heater positioned near the top of the metal fluid delivery tube. Geezuz that was a lot of fooling around, but at least we now know how it works.:thumb:
 

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Hey...I need the glass tube OD & ID...I know I'm a PITA.

The tube OD is .047". I don't know the tube ID and I'm not breaking this one as I want to use it for some experiments. We know it's a teeny bit larger than the lead wire and the lead wire is.... 0.016" or there abouts depending on where I grab it. So let's say .005" clearance and you have a tube ID of 0.026". What you doing now you maniac.:confused:
 
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