I did this to my JVC car radio. It made it so much easier to read in the sunligh... | Hacker News

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		tomswartz07 on April 21, 2014 \| parent \| context \| favorite \| on: How to Convert a Digital Watch to a Negative Displ... I did this to my JVC car radio. It made it so much easier to read in the sunlight.

ttflee on April 21, 2014 [–]

I did this to my calculator, possibly a CASIO one.

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