In most every Federation starship design that I can think of, the nacelles have glowing Bussard collectors (red, usually, but blue in the new timeline) with the exception of the TOS-era movie ships. The Miranda-class, Constitution-class, even Excelsior-class ships do not have visibly glowing nacelles.
Even the Phoenix had nacelles similar to the later red and blue look of TNG and beyond. I would also be interested in counter-examples of later ships without glowing nacelles. Let's stick with Federation ships, though, as there are plenty else that have wildly different designs (like, let's not even start with the lack of nacelles on the Bird of Prey). See the pictures for an evolution of the Enterprise's nacelles.
Is there a reason, in-universe, for this change, and the subsequent switch back?