silvercreekvalley wrote:
  Does anyone have a spare 8 bit ISA hard-disk
controller,
 something that would work in a IBM XT.
 The current controller is damaged, and always reports
 '1701' when the XT boots. I've tried known good hard-drives
 without success so I'm pretty sure its the controller.
 Please contact me of list.
 Thanks
 Ian.
    
have you seen this:
http://www.vintage-computer.com/vcforum/showthread.php?t=14420
Cheers,
pontus.