I'm rebuilding an old 6 inch scope I once made.
All I had was mirror and have gotten everything but
Wouldn't you know it! Two tubes on astromart of right
size on a day when I was busy and couldn't check!
So does anyone have a surplus tube of 7" dia. Needs
to be 40 to 48" long or so. Mirror is 40 inch fl.
Not fussy about material or condition but needs to
work with spider and cell made for 7" tube (6 7/8 ID)
Also I'm in Orlando, FL, so a tube at other side of
country might have prohibitive shipping costs.