i do not understand.sorry.
Rub your finger on the rim of a champagne or wine glass. It vibrates, causing a ring noise.
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oh understand you, but i do not know. which one is good sing or donot sing?
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Do you have a 29/42 adapter, similar to the summit laminar with a 24/40 vac port and flask. And a cold trap with the same bore?
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but I know.the material is igh borosilicate 3.3
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I do not understand u.can you give me a sketch or picture.I think I should be able to do it.
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I dont know, I’m not sure why some of my glass does that, it’s just something I noticed, if anyone else can chime in on what it means when ur glass sings or not, that would be sweet
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Do you have a picture of on the other side?t 
on the other side?
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The other side is two gl connections to connect to that coiled part, the coil has 6 loops in it before it goes back out
thanks!
yes if you need I can do it.
now it is chinese time for 12:12 night.I will sleeping
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do you know what the function of this little condenser in the vapor path is for?
Cools vapors before entering the cold trap. I use it to grab heads in the flask. And I have to single flask mono swing that I drop down for mains. I have everything I need to turn it on, just missing this piece. And they are 600 through summit. Probably a little less through Rocco
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I do for sure.cooling vapors is one of the tricks it offers but the main attraction is what it is all about
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So is it adding efficiency to the cold trap by dropping out extra condensables? I imagine you need to use a separate chiller for this condenser by itself
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Just ice water.
It can get gunked up if it’s a nasty fart fraction
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I have an eBay store, but he charges a fee. I can give you a PAYPAL bill.
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