Posts Made By: david ulbrick

April 22, 2003 01:59 AM Forum: Equipment Talk

What mirror material is this ?

Posted By david ulbrick

I was wondering what this mirror is made from.It's for sale on this site.Would it be a natural quartz blank ?
(it's my first post) cheers.(aust )

http://www.astromart.com/viewad.asp?cid=186929

April 25, 2003 05:45 AM Forum: Equipment Talk

Parks 12.5" primary,,,,,quality ?

Posted By david ulbrick

I have found a dob here (aust) with a 12.5" Parks primary and secondary, how good are they ? The coatings are perfect. Thankyou.

April 27, 2003 07:36 AM Forum: Equipment Talk

Mirror cleaning with CO2

Posted By david ulbrick

Has any one tried cleaning mirrors with carbon dioxide ? The URL has a good description of the prossess.
The idea of no contact with the surface sounds good.

http://subarutelescope.org/ThisMonth/200002/

May 4, 2003 08:01 AM Forum: Equipment Talk

Is the Meade 6" LXD-55 AR-6

Posted By david ulbrick

A chinese achromat like the Synta ?

May 11, 2003 12:18 AM Forum: Equipment Talk

ULS quartz secondary upgrade

Posted By david ulbrick

I was thinking of an upgrade with a quality quartz secondary,mainly because of the excellent surface polish they have. Has anyone had good results with this type of upgrade?

May 12, 2003 10:50 AM Forum: Equipment Talk

Wifes & equipment budget

Posted By david ulbrick

How do you guy's go explaining the new equipment ?
Mine gets a little tardy at times.

May 29, 2003 01:31 AM Forum: Telescope Making

Mirror silvering.......anyone?

Posted By david ulbrick

I have a 6" f10 mirror that I was going to try to silver
rather than have aluminiumised (difficult in aust).
Has anyone tried doing it ?
It will be a throw together planetary scope.

June 23, 2003 07:18 AM Forum: Equipment Talk