The Doctor's TARDIS key: Difference between revisions

The barrier on [[the Doctor's TARDIS]], a type 40, was a double curtain trimonic. As such, the [[Chancellery Guard]] needed the model's cypher indent key to gain entry without the actual key, as opposed to other methods of forced entry. ([[TV]]: ''[[The Deadly Assassin (TV story)|The Deadly Assassin]]'') In its [[police box]] disguise, entry was allowed by inserting a key into the lock, just like a real police box. ([[TV]]: ''[[Doctor Who (TV story)|Doctor Who]]'', ''[[Rose (TV story)|Rose]]'' and others) However, the locking mechanism did not respond to police-issued keys. ([[TV]]: ''[[Blink (TV story)|Blink]]'') According to [[Susan Foreman]], the lock had a defence mechanism in which there were twenty one different holes inside the lock, one being the right place and other twenty being wrong. If a mistake was made, the whole inside of the lock would melt. ([[TV]]: "[[The Survivors (episode)|The Survivors]]") [[The Brigadier]] was prevented from opening the TARDIS in the [[Third Doctor]]'s absence, because of the [[metabolism detector]] on the lock. ([[TV]]: ''[[Spearhead from Space]]'') Nevertheless, there were occasions on which strangers were able to successfully use the Doctor's key, suggesting either a flaw in the metabolism detector or a choice on the part of the TARDIS. ([[TV]]: ''[[The War Machines (TV story)|The War Machines]]'', ''[[Doctor Who (TV story)|Doctor Who]]'', ''[[Blink (TV story)|Blink]]'')