Sonic Activation Circuit

A small, unassuming circuit device embedded in the Chancellory’s control panel. Borusa manipulates a single dial on it, triggering a localized sonic pulse that disrupts Sontaran physiology. Its activation is masked by the Doctor’s taunts, allowing the Chancellor to dismantle Sontaran command without drawing immediate suspicion.

1 appearances

Appearances in the Narrative

When this object appears and how it's used

1 moments

S15E25 · The Invasion of Time Part 5

Doctor exploits chaos to disrupt Sontarans

The small circuit device embedded in the control panel dictates the sonic pulse’s timing and strength. Borusa’s manipulation of the dial sets a precise limit—enough to disable Sontarans but too brief to alert nearby APC systems.

Before: Deactivated and hidden within the drawer’s cavity, identified only by Borusa

After: Activated and functioned, its mechanism now spent

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