Mark Devin Newland wrote:

> ...hook the buzzer up to it's own oscillator and just have PORTA
> turn on (or off) the osc...
>

And even your local Radio Shack has just the ticket -- a piezo elelment and
oscillator in a plastic can unit -- just apply 5V and you're in business. A
quick 40 mS pulse should be audible.

Ken Pergola