Home▸ Forums▸ 68kMLA▸ Disk II & Disk III — #5
Post #5 by david__schmidt
Source Forum68kMLA
CategoryDevelopment
Post DateTue, 1 Sep 2009 - 18:51
Original URLhttps://68kmla.org/bb/threads/disk-ii-amp-disk-iii.18435/
Post
At a minimum, the pinouts have to be remapped. The first 20 pins of the Disk II & Disk III seem to be identical in function, suggesting that the 6 remaining Disk III pins are utilized solely for daisy-chaining up to three Disk IIIs.
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Good point - it would need to be able to address all 4 drives. A little hint of an adapter is mentioned here:

http://news.altair.com/mailman/htdig/apple3-l/2004-March/000039.html

I'm not sure that is proof of a Disk II being hooked right to them, without any modifications. This prototype is a perfect example of what was likely going on in-house while the /// was in development...
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Love the racing stripes! :-)

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