Object
Moonbase Transmitter System Diode (Solar Energy Store Room)
A critical low-level hardware component (diode) within the Moonbase's transmitter system, located in the Solar Energy Store Room. Its failure disrupts the signal guiding the Doctor's rocket, causing a crash landing. Replaced by Phipps to restore the beam.
3 appearances
Purpose
Maintains signal integrity in Moonbase transmitter to guide incoming rockets via homing beam
Significance
Its sudden failure severs the navigational link, crashes the Doctor's rocket, and spikes urgency around Phipps' isolated stand against Ice Warriors; replacement revives the lifeline, enabling the rescue mission
Appearances in the Narrative
When this object appears and how it's used