The circuit board inside this clock died, so I replaced it with my laptop. You could say that the clock speed is about 70x the standard speed (this is the fastest the mechanism can handle before it just oscillates) – I’m impressed it can handle this.
The headphone output is connected directly to the coil in the clock movement and driven with a square wave. The coil is 250 ohms – some headphones are much lower than this, so there’s no need to worry about damaging the laptop’s headphone output, either! The gears, on the other hand, may wear out a little quicker than usual. =P
<p style=”text-align: center;”><object classid=”clsid:d27cdb6e-ae6d-11cf-96b8-444553540000″ width=”480″ height=”295″ codebase=”http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,40,0″><param name=”src” value=”http://www.youtube.com/v/JCEfxaP4-_M&fmt=22″ /><embed type=”application/x-shockwave-flash” width=”480″ height=”295″ src=”http://www.youtube.com/v/JCEfxaP4-_M&fmt=22″></embed></object>