I have an application where I need to make a short ticking
sound, about 1 per second or so. It needs to be heard from
as far as 10' away, but not much louder. It would be really
nice if it was simple and within 5 volts. I screwed around
with a cheap speaker out of a PC, where I put it between 5V
and the collector of a PN2222, then switched the transistor
every second by toggling the pin on the PIC (16C73). It had
the right sound but wasn't loud enough. Does any one have a
device or circuit that work for this?

Ryan