Williams System 7-11b Power Supply

Price: $125

Note: Out of Stock

AVAILABLE AGAIN STARTING June 30, 2021

This is a drop in replacement for Williams pinball machines using the System 7 – 11b power supply board.   This board replaces original Williams part number D-8345-xxx or 117667 and Data East Part Number 520-5000-00.  The benefits of our new board include the following: 

  • 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, solenoid input, solenoid output, lamp input, lamp output, display positive and display negative voltages.
  • LED lights for instant supply and fuse status checks
  • Thicker boards for more stability to help reduce stress cracks
  • Optional jumpers for 100v or 91v display settings
    • 91v settings are used to lower power consumption and lengthen the life of the original gas displays
    • 100v is the setting used on the original boards
  • Circuit adjustment for HV display to waste less power
  • High power resistor updated to flame proof Metal Oxide as recommended by most repair guides
  • 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
  • As with all Kohout Enterprise boards, only through hole components are used (No surface mount).
  • Screw terminals have been installed for the General Illumination power connection (blue connector, bottom right in picture below).  You can either screw your power directly to the board or use the supplied 4 pin connector.  

Note: Not all Williams System 11B machines use this power supply. Some also use the D-12246 or what we refer to as the Williams System 11C power supply.

Here is a list of machines this Power Supply is used in: 

System 7 Pinball Machines (D-8345-xxx)

  1. Barracora
  2. Black Knight (Most Versions – See note below)
  3. Cosmic Gunfight
  4. Defender
  5. Firepower II
  6. Hyperball
  7. Joust
  8. Jungle Lord
  9. Laser Cue
  10. Pharaoh
  11.  Solar Fire
  12. Star Light
  13. Time Fantasy
  14. Varkon
  15. Warlok

Note: Some Black Knights used the System 3-6 Style Power Supply. If your power supply board is more square, then look at the System 3-6 Power Supply board. Also, if you have the transformer mounted in the backbox, then you probably need the System 3-6 Power Supply instead.

System 9 Pinball Machines (D-8345-xxx)

  1. Comet
  2. Sorcerer
  3. Space Shuttle

System 11 Pinball Machines (D-8345-xxx)

  1. Grand Lizard
  2. High Speed
  3. Road Kings

System 11a Pinball Machines (D-8345-xxx)

  1. F-14 Tomcat
  2. Fire!
  3. Millionaire
  4. Pinbot

System 11b Pinball Machines (D-8345-xxx)

  1. Banzai Run
  2. Big Guns
  3. Cyclone
  4. Space Station
  5. Swords of Fury

Shuffle Alleys (D-8345-xxx)

  1. Alley Cats
  2. Big Strike 
  3. Triple Strike 
  4. Gold Mine 
  5. Strike Zone 
  6. Tic Tac Strike

Data East Pinball Machines (520-5000-00)

  1. ABC Monday Night Football
  2. Phantom of the Opera
  3. Playboy 35th Anniversary
  4. Robocop
  5. Secret Service
  6. Time Machine
  7. Torpedo Alley
All power supplies come with the 4 wire male general illumination connection.  This connection will come pre-installed on the screw terminals (pictured lower right).  Not all pinball machines used this connection.  It can be removed if necessary.