Mine was an old Asteroid cabinet. I pulled ALL of the wiring out of the door and rewired everything. I even left and wired up the solenoids (or whatever they are called) that reject quarters if the machine is not on.
Anyway, I'm using the original bulb sockets and bulbs. I wired up a 5v DC power supply to the bulbs and solenoids that come on when I turn on the cabinet. I have the coin slots working and wired in parallel to a momentary on/off/momentary on toggle switch so I can either use quarters or open the coin door and hit the toggle switch. Using the coin slots is good if you have kids over and they are only to play a few games.
-Mc