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Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

nec

  1. RetroGamerCX

    nec (up)d1877c, the unknown "cpu".

    hi, i remember getting a 1977 (?) calculator (casio h-1) back in 2017-2018, and after many years letting it get dusty, i decided to disassemble it now. i already disassembled it before twice, the first time was to fix it, and the second time was to extract some components, but after a while i...

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