Yes that was a typo error. BTW, my tube power amps use 12BH7 tubes and I was told from the manufacturer that I can sub a 12AU7 in place of a 12BH7.
It should be okay to try. The 12bh7 supposedly draws more heater current, but they should otherwise be pretty similar as far as compatibility. So if the circuit can handle a 12bh7, a 12au7 should be fine.