Fabula
Object
Object

Dematerialization Control Button

Critical control button for initiating the TARDIS's temporal dematerialization sequence, repurposed for sabotage by the Master.
2 appearances

Appearances in the Narrative

When this object appears and how it's used

2 moments
S19E25 · Time Flight Part 3
The Master abandons the TARDIS to his enemies

The dematerialization control button, once a functional key to the TARDIS’s temporal flight, is pressed by the Master with deliberate finality. His act severs all connection between the occupants and the time ship’s systems, rendering the button’s purpose obsolete in an instant.

Before: A functional, recessed control on the TARDIS console, dulled by usage but capable of initiating time transit.
After: A lifeless, inert mechanism, its function discarded along with the vessel it once served.
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S21E24 · The Twin Dilemma Part 2
Doctor chases Peri into time stream

The dematerialization control button serves as the trigger converting the Doctor’s desperate gamble into action. Struck with the heel of his hand at the last possible moment, it seals his fate, launching him into the waiting maw of the revitalising modulator’s failure.

Before: Recessed and inactive on the alcove’s control panel
After: Depressed, initiating the failed synchronization sequence
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