Yep, on post war era Generals, power hits the smoke restor and light via handrails. The smoke piston is horizontal, and it's cylinder is the narrowest portion of the boiler, up front. So i.e., there is no room for wires inside; and underneath then forward then up, would have needed fine wire, too fine for smoke, and even fine, would also still be exposed and in sight.
They are not the easiest locos to work on. The can motor units are easier to deal with, and adding weight to either helps a lot. They are not great pullers when light and magnetration was great addition when there.
