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[ATM] Re:Tees instead of triangles
This whole topic may be moot (for me, anyway). I received an email suggesting that my mirror is so thick that a 6-point cell will suffice. The chart on this site states that a slightly smaller and thinner mirror (16" diameter, 3" thick) has a P-V of 1/53. My 16.5 x 3.5 won't be far from that.
http://users.telerama.com/~mdholm/atm/cells/6point.html
Alan K. Henderson
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