NOTES

The PBP command >SOUND will output a square wave with 127 pitch selections. It will also output white noise with various qualities. It is a much cleaner sound that the >FREQOUT command outputs. Also in the language is a command that ouputs DTMF tones. I have also included an OpAmp [single supply]. Makes the sound louder.
Enjoy.

LM386 DataSheet

PBasic Program

OpAmp Schematic

Looks as if the circuit at the left is missing C2 from the schematic. Seems to work well, but could probably use it.

Check the datasheet for notes on how to increase the gain. The schematic is good for a variety of single supply OpAmp.

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SOUND

VIDEO