Certainly!

That's what transistors do!

You will need a higher voltage source to drive the collector. (12V)
A simple common emitter amplifier will drive a Piezo.
You might also look into driving the Piezo directly with two pic output pins
and push-pull it for twice the drive.


rad0 wrote:

>I am trying to drive a piezo speaker using a pic
>and I want to amplify my output, or just make it
>louder.
>
>I am making a little tone generator for a tabletop
>oven that will sound when the thing stops.  It has
>a built in timer, but no bell to let you know the
>thing has stopped.
>
>So, using what amounts to the Freqout command from
>a stamp, I generate my tone, but it isn't loud enough.
>
>Can you make a little amplifier using a single 2n2222 transistor?
>
>Any help appreciated.
>
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>
>

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