The Defender Project

The restoration of a 1980's Williams Defender arcade machine

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  • Home
  • About The Project
    • Defender Board References
    • Stargate/Robotron/Joust Board References
      • Fixing a Stargate machine
    • Defender and Williams References
      • Defender Repair Logs
  • Williams Sound Boards
  • Other Arcade Games
    • Space Invaders
      • Building a Midway Space Invaders Deluxe test harness
    • Galaga
      • Galaga Repair Logs
      • Namco Custom Chips
    • Building a Vector Monitor from a Raster TV
    • Star Wars – Repair Log
    • Bomb Jack: Fix logs and other information

Other Arcade Games

Galaga

Space Invaders

Phoenix

Zaxxon

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  • Recent Posts

    • Upgrading: Replacing the 4116 memory with 4164 memory (the Matt Osborn way)
    • Testing the Chad’s Arcade Defender Memory High Score Save Chip
    • Testing the 4116 memory
    • Upgrading: Replacing the 4116 memory with 4164 memory
    • Tron: Testing the Audio Amplifier

  • Recent Comments

    • lopesbroko on Galaga Repair Logs
    • Judder on Defender ROM Versions – The history
    • Judder on Raspberry Pi: Running Defender with Advanced Mame
    • Judder on The Beginning…
    • Judder on Control Panel rebuild [complete]

  • Archives

    • October 2024
    • June 2016
    • December 2014
    • August 2014
    • July 2014
    • June 2014
    • April 2014
    • March 2014
    • December 2013
    • November 2013
    • October 2013
    • May 2013
    • March 2013
    • September 2012
    • June 2012
    • May 2012
    • April 2012
    • March 2012

  • Categories

    • Audio
    • Control Panel
    • Mame
    • Monitor
    • Phoenix
    • Power Supply Unit
    • Raspberry Pi
    • Testing
    • The Boards
    • Tron restoration
    • Williams Defender restoration

  • Meta

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