Free piston Stirling Engine with linear alternator lights up incandescent bulb

This is basically the same model Stirling engine as in the previous video, but it has been made more rigid structurally and fitted with a linear alternator. The alternator has a Neodymium magnet 25 mm in diameter attached to the power piston of the Stirling and a coil fixed to a wooden armature. The coil is connected to an incandescent bulb (Christmas decoration type) which glows as the engine picks up speed.
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