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Free piston Stirling Engine with linear alternator lights up incandescent bulb

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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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