Coin Operator

 is a perk in the Fallout: New Vegas add-on Dead Money.

It is received from Christine as part of her dialogue: several Perception and Intelligence checks are necessary, along with polite responses. A dialogue option to acquire this perk has a Perception check of 6 followed by an Intelligence check of 6.

Effects
The result is Christine teaching the Courier a Workbench recipe to make "slugs" that Sierra Madre Vending Machines can use: 1 Fission battery plus 2 Scrap metal = 50 Sierra Madre chips.