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Thermally but not electrically conductive tube?

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Speakerguy

Active Member
I am looking for a thermally conductive yet electrically insulating material to wind Tesla coil secondaries on. So far the only thing I have come up with is glass. And maybe ceramic of some type. But I am having a hard time finding a supplier, other than going down to Wal-Mart and buying some very large dinner glasses.

Any ideas fellas?
 

Sceadwian

Banned
If you can find any solid diamond tubes of the approximate diameter you need they'd work well, but I think Mike's suggestion of clay would work well.

Mind you BAKE IT to drive out moisture and seal it with something.
 

jbeng

Member
A Google search turned up this company: LSP Industrial Ceramics. Their online brochure says they can supply alumina ceramic tubes in diameters up to 9 1/2 inches OD with a 1/4 inch thick wall.

Jeff
 
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