Neil, Great to hear your progress! Corey Cohen is the Apple 1 expert. Consult with him for any advice. Jeff Brace On Fri, Aug 8, 2025 at 8:26 PM Neil Cherry via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:

Manage to get myself somehow dragged into building Apple Is because I wanted a 6800 version. That was the start of trouble! So I bought 2 bare PCBs and planned to build a 6502 and 6800 version. Had I done some research before hand I would have found I could have bought many vintage computers for the price of the various parts of the Apple I and we're not talking date correct parts just the necessary parts. But at the same time I happened on an unloved more than complet Apple I reproduction that wasn't running. So I bid and won at a more than reasonable price, half as much as a working complete reproduction and less than buying the parts. Well I diagnosed the bad chip, a 2519 ($70+). I used a replacement board with parts that are available and I now can program like it was 1976. :-)

I threw some quick photos up on:

https://ushomeautomation.com/Projects/Vintage/Apple1/index.html

Yes, the Commodore monitor needs a bit of TLC. I'll get to it ... eventually. ;-)

-- Linux Home Automation Neil Cherry ncherry@linuxha.com http://www.linuxha.com/ Main site http://linuxha.blogspot.com/ My HA Blog Author of: Linux Smart Homes For Dummies KD2ZRQ

On Fri, Aug 8, 2025 at 8:26 PM Neil Cherry via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> wrote:

Manage to get myself somehow dragged into building Apple Is because I wanted a 6800 version. That was the start of trouble! So I bought 2 bare PCBs and planned to build a 6502 and 6800 version. Had I done some research before hand I would have found I could have bought many vintage computers for the price of the various parts of the Apple I and we're not talking date correct parts just the necessary parts.

Indeed. I bought a bare board some years ago (from Corey) and have been working on gathering parts but the prices for the rare chips keep the project on a very slow burn. I was never going for date-code accurate and I'm willing to accept substitutions but those goofy shift registers are just insane.

But at the same time I happened on an unloved more than complet Apple I reproduction that wasn't running. So I bid and won at a more than reasonable price, half as much as a working complete reproduction and less than buying the parts.

Excellent find. I would definitely have done the same.

Well I diagnosed the bad chip, a 2519 ($70+).

Ouch! At least there is a modern work-alike (and the board runs fine with a much newer 6502 since ceramic ones are $$$$$)

I used a replacement board with parts that are available and I now can program like it was 1976. :-)

I threw some quick photos up on:

https://ushomeautomation.com/Projects/Vintage/Apple1/index.html

Very nice! -ethan