Time distortion equaliser thingy

The Twelfth Doctor was making and trying to use a time distortion equaliser thingy when he first met Grant in New York in the 1990s. As he explained to Grant, there was "a lot" of localised disruption there, which he blamed on himself, and that he intended for his device to calm it all down. He required the Hazandra to power the machine, but due to Grant swallowing the gem stone, he was unable to. (TV: The Return of Doctor Mysterio)