The search returned 8 articles:

  1. March 1989: Project: Build a LED Message Board by Don McKenzie [online issue]
  2. March 1989: Project: Build a LED Message Board by Don McKenzie [online issue]
  3. April 1989: Project: Build a LED Message Board by Don McKenzie [online issue]
  4. April 1989: Project: Build a LED Message Board by Don McKenzie [online issue]
  5. May 1989: Project: Build a LED Message Board by Don McKenzie [online issue]
  6. May 1989: Project: Build a LED Message Board by Don McKenzie [online issue]
  7. June 1989: Project: Build a LED Message Board by Don McKenzie [online issue]
  8. June 1989: Project: Build a LED Message Board by Don McKenzie [online issue]