Cathode Tube

The Cathode Tube is an item in Burial at Sea - Episode 2, required to fix the broken Lutece Device in the Silver Fin Restaurant. The cold cathode tube is a part of the Circus of Values and El Ammo Bandito type vending machines, which is where Elizabeth will find one. After finding the cathode tube, a CO2 Scrubber and Old Man Winter Elizabeth can fix the machine dn enter Columbia from Rapture. It will be found in a Circus of Values vending machine.