Re: ATM TV screen glass for mirrors

[Jeff Crilly <jeff@communities.com>]

Ship portholes?  (I could be wrong.)  Supposedly
these can be obtained from ship salvage yards.

At 11:19 AM 5/20/97 +0200, Dr. Marcus Hennecke wrote:
>Hi there,
>
>for those with real tight budgets many if not all parts have to be made
>from scrap materials. Those are generally not so hard to find for most
>of the telescope. However, it is much harder to find sources of cheap
>glass for the mirrors.
>
>Has anyone considered using the glass from old TV screens for the
>primary mirror? Anybody know what kind of glass is used and how thick
>it typically is? Of course, another question is how to properly remove
>the vacuum inside the tube.
>
>Can you think of other sources of scrap glass that can be used for 
>mirror making? It is easy to find glass on scrap heaps but it is hardly
>ever of the right thickness and the quality of the glass is unknown.
>
>Thanks in advance,
>
>Marcus
>
>