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HP 16c Overlay

US$30

The HP 15c Collector's Edition has a hidden test mode to make the calculator act like an HP 16c, for computer scientist mathematics. Unfortunately, because the keyboard layout is quite different from the 15c, it can be difficult to use. This custom overlay, produced by The Calculator Store, rests on top of the 15c keyboard, and is made of silicone with flexible buttons to let you easily see the 16c function on each key. There is no adhesive, so it can be easily removed and stored for when you want to use the calculator as a 15c again.

Warning: When removing the overlay from the packaging, be very careful, and do not tug on it. The silicone can stick to the inside of the bag and may tear if you pull it too hard.

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Part of the HP Calculator Archive,
Copyright 1997-2024 Eric Rechlin.