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HP Forums / HP Calculators (and very old HP Computers) / General Forum v / About frist scientific calculator powered by solar cells and button cells

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About frist scientific calculator powered by solar cells and button cells
08-16-2017, 10:17 AM
Post: #1
Alevin Offline
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About frist scientific calculator powered by solar cells and button cells
Hi all.

May be this is not the most suitabale forum to put the following two questions, but is the more populated in order to get any answer.

As we are in the final steps to prepare a small scientific calculator exhibition, we wour like to know...

what was the frist scientific calculator powered by button cells?

What was the frist scientific calculator powered by solar cells?

after intensive google search no clear info was found

Thanks for your answers
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About frist scientific calculator powered by solar cells and button cells - Alevin - 08-16-2017 10:17 AM



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