I've seen fake thrown around a lot. What does that mean, exactly? That the transistor doesn't look like one that somebody likes? I don't get it. If the thing WORKS, it's not fake. One of the doctors I see sometimes.......she has one of the best lookin sets of tits you will ever see.....and she loves to show um off. A friend of mine once said "you know they're fake, right?" To which I replied, "I bet you wouldn't say that if you had one in your mouth". It's all relative. Whose to say some of these so called "fake" transistors might not be as good or better than the original? I've not seen any failed HI Rev units as of yet. Not that that means a dang thing, but you'd figure if they were junk, people would be screamin and they're not.