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Bringing a Classic HP 35 Calculator Back to Life @HP

EDN Network posts a great article on how Michael Dunn buys a classic HP-35 calculator and gets it going with a modern LiPo battery and some circuit ingenuity.

HP Calculators

Do you have a fondness for calculators which came out in years past? Post your favorites below.

My favorites were the LCD Casio calculators for simple things and a TI-55 LED calculator which got me through engineering school.


Related
The HP-35 – Consumer Electronics, an Origin Story.


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1 Comment

  1. This EC-4016 is so thin and had the hex conversion I needed as a computer science student. I’ve never found them for sale or anything comparable since.

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