Hello Paul,
Thank you so much for the detailed information.
Yes, I see that the C model drive has a single ribbon cable connector, while the D model drive has a separate power connector (and square eject buttons as you suggest). I hadn't tried the alternate formatting (256 byte sectors) yet. I agree disassembly is in the offing - on the D model the right-hand drive does not latch the diskette into position. I wasn't aware of the differing rotational speed (!!! :-( )
The panasonic drive you mention seems to be available enough on ebay and similar sites, so that may be a starting point.
I'll study the manual (I did download successfully) and see whether a I can gather enough resource to make the attempt worthwhile (I'll probably have other questions). As for the interposer board, that would be easy to cobble up as a PC board (I do many of my own small circuit boards) and I'd be glad to share the results if that would be useful.
Thanks again!
Dave
