On Wed, 6 Jun 2012, Brent Hilpert wrote:
  Going from the pages Mike ref'd, I didn't
realise so many of the sites had
 been decommissioned so early and only a lesser portion hung on to the 80s. 
    To add to that history, the Hughes 5118/1116-based AN/FYQ-93 which
replaced the AN/FSQ-7 (SAGE) at McChord was in service from 1983 until
2006.  Its replacement was the AN/FYQ-156 BCS-F (Battle Control System -
Fixed), built around HP servers:
http://www.radomes.org/museum/equip/radarequip.php?link=fyq-156.html
Mike Loewen                             mloewen at cpumagic.scol.pa.us
Old Technology        
http://sturgeon.css.psu.edu/~mloewen/Oldtech/