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2,860 Tutorials

How to Build your own Apple 1

Build the iconic Apple computer from scratch

There's no doubt the Apple 1 is an iconic computer. We decided to re-create this classic machine with the help of an unassembled kit. Find out how we got on.

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.

With the 65C02 properly aligned, the Replica 1 now boots perfectly and displays the bytes currently stored at various memory addresses, indicating that the computer is ready to accept programming.

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NEXT PAGE: It works!

  1. We build the iconic apple computer from scratch
  2. Soldering the reset and clear buttons
  3. Exceptions to installing sockets in any position
  4. The lack of casing
  5. New components
  6. Inspecting my work
  7. Inserting chips
  8. Booting up
  9. It works!

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