vacuum base for bell jar
OK, I got a vacuum pump and I found a 1/2 gallon bell jaw at Fisher
for $42. I didn't see a base so I am wondering about making one.
I figure an aluminum plate would work fine. How thick of a plate
do I need for a 1/2 gallon bell jar? Is 3/8 enough or do I need
to go to 1/2 ?
thanks
chuck
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