Macintosh 128 Proto (as far as i can tell)

[superpantoufle]

Wow! Can't wait to read/hear more!

 

[Trash80toHP_Mini]

In the interest of preservation: does having the image adjusted to such a large size put undue strain on that prehistoric Proto-A/B?

 

[Bunsen]

IIRC, recommended adjustment leaves about an inch of black border on all sides. It seems like a wise precaution to nudge it down a little on something that rare.

 

[onlyonemac]

It's probably gone out due to age-I don't think they adjusted it.

 

[uniserver]

According to the folklore site the proto late model was 512 not 128 so it's not upgraded.

that is pretty cool info

they were going to roll them out as 512k's at first… but those pesky ram chips were just digging to deep into apples wallet.

 

[unity]

The 512 proto motherboards would have a paper label saying "Mac 512" and the RAM would have had a factory look of soldering. The label can easily go missing but the RAM would not look like it was added later. As for the floppy, if its original to the Prototype then it may still have a date on the side of the drive. It has to be taken out of the cage of course. But an easier way is to look in front and to the bottom right. It will should have a capacitor laying on its side. This was part of the original modification by Sony to get them into specs set by Apple. There are a couple other minor changes too. I took a pic to show what I mean by the capacitor.

The case frame would also end in a "-A" or "-B" with "-B" being production run on the early Macs.

The ROMs would not end in "-A" or "-B", original ROMs were just 342-0220/342-0221 including early production units.