500,000 years after the invention of the Type 1, the Time Lords finally accepted that was safe to use TARDISes for exploration and investigation missions.
The Type 25 TARDIS was created several millennia after the introduction of the Type 1. Despite protests from traditionalists, the Type 25 was the first TARDIS to have an independent Block-Transfer copy of the Eye of Harmony. Not only did it have two hearts (the Main Space-Time Element and the Eye) but the Type 25 was also the first TARDIS to have more then one Control Room.
The following color code is used:
- Black: For information from the TV Series, including Dimensions in Time, and 1996 TV Movie.
- Blue: For information from the Novels and Audios including Target, Virgin, BCC, and Big Finish.
- Green: For information from 'licensed' reference sources such as the Technical Manual, Doctor Who Magazine, and the Role Playing Games.
- Red: For information from unofficial sources -The Faction Paradox series, behind the scenes interviews, author's speculation, and popular fan belief.
The TARDIS Technical Index is copyright Will B Swift.