Tetra-Schiefspiegler

Archived from: http://bhs.broo.k12.wv.us/homepage/alumni/dstevick/jbrudi.htm

Jim Brudi's mirror layout

TETRA	8 in. Aperture F/15.7
Primary	8 in. concave mirror
Surface 2	4.1 in. convex mirror, but 3.75 in. effective dia.
Surface 3	6 in. concave mirror, but only the center 2.2 in. dia. is used. It's easier to get the curve needed by using an oversized 6 in. mirror.
Flat	Dia. at least 1.1 in.

I'll try to find the rest of the info and send it to you.
Jim Brudi