New Williams power supply adapter by Brad Raedel V1. This is a power supply adapter for Williams games. The one that is commonly used does not have support for the 6-Pin plug that provides the ground to the diagnostic switches, or the coin reject lamps. I also designed this to fit properly inside the screw terminals, has LED's and test points. Added 2, 3300uf capacitors (6600uf total) to let the MPU shut down like the original linear supply... The only thing that this doesn't support is the lockout coil(s) which require at least 21 volts.