Does anyone have a schematic on this unit? I have a copy of the instruction manual that's been floating on the net for years, but there's nothing about the circuitry or a schematic. Sprague and Lectrotech at some point took over the manufacture and distribution from the original garage operation. I've never seen a copy of the later version manuals by Sprague nor the apparent addition of a Super Beta function to the original design.
Anyone have a schematic or know the origins of this unit?