The Master's TARDIS
The Master appears to have had several different TARDISes throughout his engagements with the Doctor.
During his Earth-based vendetta against the Doctor and UNIT, the Master used a Type 40 Mark II. (DW: Terror of the Autons) Unlike the Doctor's TARDIS, the Master's TARDIS has a fully functioning chameleon circuit.
Exterior
During his early rivalry with the Doctor, the Master changed his TARDIS into several different forms:
- A horsebox (DW: Terror of the Autons)
- A white door (DW: The Claws of Axos)
- A spaceship (while he posed as an Adjudicator) (DW: Colony in Space)
- A computer bank (DW: The Time Monster)
On the planet Gallifrey it assumed the form of a grandfather clock (DW: The Deadly Assassin).
On the planet Traken he used one TARDIS to assume the form of the Melkur. Though this TARDIS was destroyed, he left in another TARDIS, again disguised a grandfather clock. (DW: The Keeper of Traken)
While preparing a trap for the Doctor, the Master temporarily changed his ship into a police box, then later an brown ionic column. (DW: Logopolis) He would then tend to the ionic column as his TARDIS's "default" exterior. (DW: Castrovalva, Time-Flight, Planet of Fire)
He would, though, configure the TARDIS into the Speedbird Concorde 192 (DW: Time-Flight), and later an iron maiden (DW: The King's Demons) and, within the Matrix, a wooden shack (DW: The Ultimate Foe).
Interior
The Master's TARDIS has had a varied interior, his first TARDIS simply had a scanner (DW: Terror of the Autons), while later interiors seems to mimic the Doctor's re-designs of his own TARDIS. (DW: The Time Monster)
Much of the time it is simply a sombre black version of the interior of the Doctor's TARDIS, sometimes with specialist equipment such as the web (which he used to contain Adric). (DW: Castrovalva)
Specific Systems
Once, the Master tricked the Doctor into materializing his TARDIS around the Master's, creating a dimensionally recursive loop (DW: Logopolis) - repeating a situation that had previously occurred accidentally. (DW: The Time Monster)
