... junk ...
The T4 was Novak's low end model back in the day ... before high frequency drives, regenerative braking, and true adjustability.
Your best option is to yank it, have it bronzed for posterity, and fork out $100 for a newer model.
Today's high frequency ESC's are leaps and bounds better than the T4's.
cm "had one ... back in the day" k