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Thanks for the replies folks. If anyone finds the time to scan either the documentation or hardware they have I'd very much appreciate it. You can probably imagine what I'd like to do with the information, and it probably is a little bit ridiculous. regards, PD

If you find time to scan the documentation I'd be very appreciative. There is just so little to find on the web. regards

I wouldn't think it would be that simple. The developer note describes the pinouts for the connector, but its up to the engineers to decide how to interface with the data bus.

http://en.wikipedia.org/wiki/Macintosh_Classic_II The Classic II has a 50-pin internal expansion slot intended for either an FPU co-processor or additional ROM. The socket is not designed to be used for any other purpose and is not suitable for use as a general expansion slot. Apple never...

Hi folks, Has anyone ever seen a ROM/FPU expansion board for the Classic II? I'm not convinced that anyone ever bothered to take up Apple's offer of developing third party expansion boards for the Classic II. I'm [vainly] hoping that a talented and generous hardware engineer has developed one...