So I spent a day last week and a day this week bringing up a newly discovered and soon to be auctioned in October at Bonham's NYC Apple-1. No it's not mine. I was hired to bring it back to life, clean it and help with creating videos of it running. I will post some home made videos next week, the videographer shoot will be in about two weeks.
The board is in amazing shape. It's an early Byte-Shop board and has no modifications, an un-used and perfect breadboard area and even the screws on the LM323k aren't heat cycled. The board required some troubleshooting as it is 38 years old. The ACI needed a little work as well. Every chip on both board and ACI were tested and the board itself was cleaned.
I also had to repair the power supply and also make it safe.
The biggest issue was the keyboard. Remember Apple-1 did not come with a keyboard, this appears to be a military spec surplus keyboard. The ICs on the keyboard are mil spec pre-7400 series chips. There was a dead gate on a hex buffer. Not having schematics this was fun to track down. I had to desolder the chip, socket it just in case it goes again in the future (Mike W. figures at some point the KB was plugged in backwards). It was replaced with a date correct replacement part. I also had to repair the reset button which is a wired switch that simply hangs off two wires. The left key is hard wired to clear screen....
Here are some pics....