Home > Apple, Gallery, News & Rumors, Projects / Repairs, Retro Computers and other stuff..., Today, Various > Apple 1 (Mimeo / Mike Willegal Clone) Assembled for a friend

Apple 1 (Mimeo / Mike Willegal Clone) Assembled for a friend

Apple Computer 1, also known later as the Apple I, or Apple-1, was released by the Apple Computer Company (now Apple Inc.) in 1976. It was designed and hand-built by Steve Wozniak. Wozniak’s friend Steve Jobs had the idea of selling the computer.

The Apple I was Apple’s first product, and to finance its creation, Jobs sold his only means of transportation, a VW Microbus, and Wozniak sold his HP-65 calculator for $500. It was demonstrated in July 1976 at the Homebrew Computer Club in Palo Alto, California.

—————————————————————————————————————————————————

Apple 1 (Mimeo / Mike Willegal Clone) Assembled for a friend of mine; Paolo Cognetti.

Many thanks for the Technical & Moral support to: Piero Todorovich and Alessandro Polito.
I also thank for some electronic components: Gabriele Molesto Zaverio of Museo Dell’informatica Funzionante, Piero Todorovich.

I had several problems with this Apple 1 clone, i very briefly describe the problems below and i attach some photos of the assembling stages.

  • 1 – No video image, all voltages are ok.
  • 1 + MPS3704 Transistor failure replaced with a 2N3704 pinout not compatible.
  • 2 – Garbage screen during boot.
  • 2 + Replaced 2 of 7 Shift Register 2504V
  • 3 – Keyboard inputs not working, the WOZ monitor is freezed and shows an “@ \” but the “\” does not wrap.
  • 3 + Replaced a 27k resistor half broken, probably during transport the capacitor has crushed the resistor.
  • 4 – The keyboard does not respond correctly, typing A they print @, typing 1 they print 0 … and so on …
  • 4 + Keyboard adapter from Apple II/+ to Apple 1 in short circuit. A wire is skewered in a pin of a Socket.
  • 5 – The computer does not respond correctly, but it seems to work. The WOZ monitor responds to commands but does not write to memory and print random locations.
  • 5 + Replaced a 7410 which had a pin always at high level.
  • 6 – The keyboard has several problems, some switches are completly dead.
  • 6 + Replaced switches.

Photos of the assembling stages:

Video:

  1. August 3rd, 2016 at 21:32 | #1

    Excellent items from you, man. I’ve keep in mind your stuff prior to and you are simply too wonderful. I actually like what you’ve got here, certainly like what you are stating and the way through which you say it. You’re making it enjoyable and you continue to take care of to stay it wise. I cant wait to read far more from you. That is actually a terrific website.

  2. August 16th, 2016 at 17:10 | #2

    Hi Nightfall,

    I’m Cyril Moulin from France. I’m building an Apple 1 too and i’ve a problem with the computer section. I don’t have the backslash /. I read you had the same problem and i would like to know how you solved it.

    Thank you very much for your feedback.

    Regards,

    Cyril.

*