[Boatanchors] Ceramics help? Yes, it's boatanchor-related.

[rbethman]

Mike,

I doubt that you are "actually" going to get to 200 Deg C. The other 
"nylon filled plastic" parts that I see in the pix would have croaked 
LONG ago!

That's one of THE reasons for forced air cooling at the appropriate 
inches of water measurement on pressure.

Bob - N0DGN

mikea wrote:
> On Wed, May 06, 2009 at 09:28:33AM -0700, J. Forster wrote:
>   
>> There are machinable glass/ceramics out there. You work it like metal, but
>> w/ carbide tools as I remember.
>>     
>
> Hadn't thought about those; that's another avenue to inspect. I wonder
> how they are with respect to insulating properties at temperatures above
> 200�C. The max rated temp on the 8791 is 250�C, at which point the seals
> apparently start coming unglued and the tube is expected to lose vacuum. 
> I hope to stay well below that, but don't know where on the thermometer 
> it'll wind up running.
>
>   
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-- 
Bob - NØDGN