TARDIS (Harvest of Time)

At one point, trapped in the far future without his normal TARDIS, found an old Type 40 TARDIS with a faulty chameleon circuit, which he was able to repair. He used the TARDIS to return to the 20th century, but he was captured by UNIT after he met the Third Doctor and Jo Grant when he tried to escape again. (PROSE: Harvest of Time)