- Power Draw - 0.72W
- Output Power - 0.6W
- Efficiency - 83%
This should do the trick. The sampling frequency us somewhat high, but it's well into modern semiconductors range, so whatever components you choose they'll easily handle the frequency. Use whatever transistor you can get your hands on. Absolutely every semiconductor will work in this range. Try for instance a BC550, for the op amp, this is a little obsolete but a ua741 should do the trick.
