In keeping with the modular theme for the prototype, I’ve assembled the AC Driver board as a separate circuit.  It contains 4 of the very simple AC driver circuits designed earlier.  Assembly and testing was uneventful.  There is a lot of wasted space on this board that can be eliminated later with a custom printed circuit board, but I definitely wanted to keep the 120VAC circuit separate from the others for the prototype.

Solid State AC Driver Assembly