The Museum of HP Calculators
HP Forum Archive 19
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Message #1 Posted by Paul Dale on 20 July 2009, 2:44 a.m.
Just noticed something on the 20b's keys. They've got their primary function embossed on the back. So e.g. the INPUT key has "input" on the inside. The shift key has "shift" etc.
Not having much luck wiping the writing off them. Washing did nothing (as expected), ammonia (window cleaner) didn't touch it. I'm sure I could sand them off but that would look horrible. Perhaps caustic soda will be my next try.
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