Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.
A micromodulator switch was a device capable of shrinking matter, intended mainly for storage. The Doctor swapped his TARDIS's in-flight stereo system for one and installed it in the console, but never got round to testing it and later forgot about it. In his tenth incarnation, he accidentally used it to shrink himself and Rose Tyler, but they managed to get to the switch in their miniaturised condition and throw it in reverse, returning them to normal size. (COMIC: Which Switch?)