Pump-o-Phone is an electronic sound instrument working with dynamo-generated power.

It was built during the Gijon Summerlab 2011 with Cedric Doutriaux.

All the components can be found in electronic waste like computer, DVD player, toys etc.

The energy comes from a DVD player engine.

The audio input comes from a piezo set on a computer radiator, creating some kind of harmonics.

The speaker comes from a megaphone.

Feel free to download the Kicad's schematics to build the instruments (All under GPL2).

Here a video showing the Pump-O-phone in action..