[Station X]

The wander plug sockets obviously aren't original.

I'd go for a medical or shocker coil. The brass rod or tubing with a terminal screw looks like one of the electrodes held in the "victim's" hands. The Nife switches probably set the step up ratio of a transformer. The "relay" appears to be wired as a buzzer interrupting the current in the primary winding of a step up transformer.

I hope the mains lead isn't part of it!!