MY Tmaster A/B crapped, I had a problem finding a replacement.  One at $60.
Finally found Tmaster A/B, original issue, not the II, at computergeeks for $25 new and $18 refurbished.  Their shipping costs are fairly expensive at $12.
Not a bad stick, non force feedback, lots of buttons and programming options and the throttle can be disconnected from the stick.  Which I like.  And the throttle has several buttons which I use for G and F plus it has a rudder bar.