Thread: New first light CaK 10th Feb 2023
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Old 15-02-2023, 06:57 PM
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Merlin66 (Ken)
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Join Date: Oct 2005
Location: Junortoun Vic
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On the English sol’Ex group Doug Smith has details of how to obtain one of his 9 micron x 12mm slit gaps on a quartz substrate.
If you need more information drop me an email.
Ken
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