Ed, first of all we are talking a different era. I was trained to lay out a frame properly on plywood or to use a commercial frame manufactured by Homaco. The 501 style Homaco frames are either 19 or 23 inches wide and are 66 block frames. Since I haven't used a B block in probably 15 years and 80% of my house cable is on 110 blocks, those colored backboards that I never used or never appeared in my "GSP's" don't apply.
Sure I can buy them. But why?
Carl
