@gunrunnerjohn posted:The KSP13 has similar specifications to the one I pointed out. The BCX38C should do the trick.
Here's the datasheet for the KSP13.
Gunrunnerjohn, I replaced the transistor with the one you suggested. I replaced the transistor and it did not blow. I reversed the direction of the transistor, and now, the whistle blows constantly....I also replaced the diode. I'm stumped.