The Faderator

The  is a cut weapon in the Fallout: New Vegas expansion Dead Money.

Characteristics
The Faderator is a unique variant of the gauss rifle, which in appearance is identical to the standard weapon. Its actual properties are vastly different, with a lower ammo usage per shot, larger ammo capacity, automatic operation, 100% hit chance in VATS, and in particular a dramatically increased rate of fire, bringing the weapon's calculated damage-per-second to 20,160.

Based on these factors, as well as the weapon only appearing in one normally inaccessible test cell, it can be assumed that The Faderator was never meant for legitimate inclusion in Dead Money. It may be more accurate to classify it as an Easter egg rather than a cut weapon.

Locations
The Faderator cannot be found anywhere in the game, and can only be obtained through the use of console commands.