HP 35s bad keyboard

[roadrunner]

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many people including myself complained about the colors that require black light to be visible.
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My eyes are almost 60 years old and I can read the prime's keyboard just fine. Granted, in dim light it's a little hard to read. If you would just throw out those compact florescent bulbs and get some good ol' 100 watt incandescent bulbs, everything will be fine.