Roger kom med denne ide:

You'll also find a new keyswitch from digikey or newark will cost less
than talking to a locksmith.
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I've worked with HeNe tubes before. The ones I've seen are a foot to 1.5
feet in length; they are usually 1 milli-watt to 5 milli-watts laser output
power. You would not want to get the beam directly in your eye, it could
cause some damage. I have heard that the eye very quickly turns to avoid
being damaged though.

Sign: Don't look into laser with remaining good eye.

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Husk kørelys bagpå, hvis din bilfabrikant har taget den idiotiske
beslutning at undlade det.