Typewriter, no? I remember reading that a long time ago. Let's see..
It can't be Z-M, no vowels.
A-L has only A... maybe half-something? Nothing I can find anywhere near ten letters.
Q-P has all the rest of the vowels, including Y. However, it only has 5 consenants (other than Q.) I found powertire, if that's a word, but still only 9. Troutpower? Can't find anything, I assume it's typewriter.