I have each a PDP 11/73 and PDP 11/34 CPU for sale. Please see the respective links below for more details. http://www.vcfed.org/forum/showthread.php?57667-LLNL-LSI-11-Homebrew-system http://www.vcfed.org/forum/showthread.php?57668-Dec-pdp-11-73-cpu Please reply to me directly via this e-mail address for quickest response. Thank you! Sellam