Sounds like mirror for smoke to me. (Assuming worst case.) 73 Fred, AE6QL -----Original Message----- >From: David Cole <[email protected]> >Sent: Sep 3, 2014 5:46 AM >To: [email protected] >Subject: [Elecraft] Trade for Elecreaft Equipment... > >I have a 12.5 inch diameter, f/6, full thickness, (2.13 inches), fully >aluminized, fully parabolized, Pyrex, research grade mirror for sale or >trade. It was tested at better than 1/8 wave accuracy, and has a tested >value of .972 for Sterehl rating. Testing performed by Optical Wave Labs >in California. The original test certificate will be included with the >mirror when purchased. > >This is a high quality mirror, that has been finished, tested, and >aluminized by a professionals in the United States. If you are going to >build a 12.5 inch scope, this is the mirror to use! >
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