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-12246
• D-12246-KE