Power supply Williams System 11C D-12246-XXX

This is a drop-in replacement for Williams and Bally pinball machines using part number D-12246-XXX.

Board highlights:

• Plug and Play replacement

• Measure your power supply voltages and instantly check status of the fuses without using your meter!

• Added voltage meter for the 5V, +12V, -12V, 100V, and -100V Display

• LED lights for instant supply and fuse status checks

• Thicker boards for more stability to help reduce stress cracks

• Jumpers for 100v or 91v display settings

• 91v settings are used to lower power consumption and lengthen the life of the original gas displays

• Improved electrical design for better efficency

• High power resistor updated to flame-proof Metal Oxide

• 5V regulator updated to High Efficiency Switch Mode Power Supply

• Heat sink added to bridge rectifier to keep cooler and last longer

• Update obsolete components to current production parts

• High quality 105C capacitors used for longer life

• Only through-hole components are used in this design

Reference:

D-12246D-12246-KE