Where can I buy new/used IBM pendant control 67X1366 ECA40801

Hi, Gary. Try posting on sci.electronics.control and sci.engr.control

-- they get more questions of this type.

Also try looking at refurbished machine resellers. They frequently have the blivets and pendants available (although they also usually have a good idea of what they're worth, too).

Another possible might be looking around at auctions and such for distressed businesses. I once got a needed part for a machine for practically nothing by buying the whole machine at bankruptcy auction.

Good luck Chris