Karla Electron Tubes

Karla Electron Tubes is a brand of vacuum tube used throughout Rapture Central Computing in Minerva's Den.

These electron tubes were crucial to the functioning of the computing banks of The Thinker ranging from enforcing direction of current flow to amplifying it. However the fragile glass construction meant that they had to be frequently replaced in face of the skirmishes from the Rapture Civil War.

Behind the Scenes

 * Like the numerous punchcard machines, vacuum tubes fit with the period of computing technology available to Rapture. Today, they have been largely supplanted by the relatively lightweight transistor.
 * The name "Karla" is inspired by the name of a BioShock 2 and Minerva's Den developer, Karla Zimonja. . She is also referenced in BioShock 2 as a possible name for a Security Bot.
 * The other nine members of the Minerva's Den development team are referenced as named sea slugs.