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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.

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  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...
  2. D

    Old Radio Antenna

    Hello, I am new here and I need help with an old portable radio antenna. It seems to have gotten the solid tip stuck or fallen into the entire thing. If there is a way to get this solid tip out could you please tell me?
  3. throbscottle

    NOS Transistor with brittle leads

    Happy Thursday everybody! I managed to get what is probably a genuine Toshiba 1996 2SA1302 with green epoxy, to repair a PA, and started bending it's leads to match the original which have a semi-circle bent into them, presumably to allow for thermal expansion. They creaked and crackled a bit...

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