If you watch TMP/TWOK/TUC and TNG the ships always seem to have only one reactor (the main intermix section)
, but the TOS Enterprise seems to have at least 3 reactors...
URL: http://trekplace.com/article07.html (About 75% to 80% down the page)
A part mentions a line from "Day of the Dove" in which Spock says...
SPOCK: Alien detected in the engineering section, near reactor number three.
Has anybody noticed this before?