Image gallery: Building an Apple-1 replica from scratch

Follow along as our editor assembles a working Apple-1 machine just like Woz built back in 1976.

trying to boot up

Everything's installed, so I plug in the keyboard and monitor and see if it boots up.

It doesn't! What could possibly be wrong?

Look closely at the bottom photo on the previous page and you'll see the 65C02 is installed backwards compared to the other chips, and that the notch on the 65C02 doesn't line up with the diagram of a notch on the board. This mistake could've fried the CPU.

I carefully unseat it, rotate it 180 degrees, reinsert it, and hope for the best.

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