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Retro-tech HP-25 Calculator
Retro-tech HP-25 calculator clone using Z80. Contribute to eshazen/retro-25 development by creating an account on GitHub.
The VFD HP-25 is cool and all, but I've lusted after an HP-97 most of my life, plus I love nixie tubes! Inspiration from Oliver De Smet (archived elswhere in this repository just in case): Rogue code can easily wear out the EEPROM (as I found the hard way!)
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