A Hurlothrumbic Generator was a device that instilled terror, engineered by the Galactic Empire. This machine emitted energy waves that caused the Human brain to respond with varying degrees of fear, contingent on the configuration. It was originally conceived by Doctor Lorenz Hurlothrumb following the Battle of Yavin. Moff Bandor supplied the funds for its creation and also sought to oversee the experimental stage.
Bandor also incorporated a "doomsday" setting, where the fear waves amplified dramatically before the generator's self-destruction. His aim was to generate intense waves capable of driving every Human on Questal to insanity through fear. Bandor deployed the Hurlothrumbic Generator on Rebel detainees Rogan and Tay Vanis. They were both reduced to a state of mindlessness. Nevertheless, they could be saved and healed with enough time. The Alliance to Restore the Republic apprehended Bandor, and the sole known functional instance of the Hurlothrumbic Generator was left behind.