Guy...
Take a look in the Group's files section. At the top of the list is an example of -HOW TO- prepare the glass for the chamber. At least it is how they used to do it at Mount Stromlo in Australia... I think that's where the fire destroyed everything a few years back.
Ken Hunter
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--- In VacuumX@..., Guy Brandenburg <gfbrandenburg@...> wrote:
Can't find any pix after an extensive 9-second search. Will take some later on
this week.
Guy Brandenburg, Washington, DC