Problem Solved!!!
There was a manufacturing defect
in the board and two traces were shorted. A bit of work with an exacto knife and I was able to remove the copper bridge between the traces.
I've attached a jpeg of my handiwork.
Now I have a finished Altair.
Thanks for sticking with me guys to figure it out.
(Gee --- all I have to show for this, from a demo perspective, is a switch that turns an LED on and off
)
Paul