This is one of the original Hy-Gain Tailtwister T2X Heavy duty rotors with Hy-Gain controller.  It is in very good working condition with no noticeable issues.  The unit was mounted atop my tower for about 8 years and subsequently had been taken down and placed in storage for the past 9 years after a move to a new QTH. Recently I tested this unit on my workbench and all appears to be fine across full range of travel.  The unit was opened to regrease the bearings with Kluber Asonic GHY72.  Additionally, the potentiometer and limits were cleaned and inspected.  A shortened wire harness is included so that you can also operate the unit on your workbench.  A printed copy as well as a digital version of the manual can be provided.  I expect that you will have no issues with this equipment if operated within it’s specs.  Feel free to contact me if there are any further questions. All reasonable offers considered, Thanks, Dan