Amplitrex AT1000

Need help locating an Amplitrex AT1000 tube tester.  Does anyone have a lead?  Appreciate any assistance.
Amplitrex recommends contacting them directly, for price and availablity:   Good luck, if you're looking for a used one.
TC Tubes operates one if you are looking to have some tubes tested.  I bought their testing services for a pile of specialty tubes where I could not test with my oldie.