http://www.amigau.com/natamiga/t-smallscsi.shtml
Just thought a few of you might need this for something or other 
The trick is to leave the " off when using Google.
Anonymous
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where you'll find all sorts of suchlike useful info.
http://developer.apple.com/documentation/Hardware/Hardware2.html
all of the early PBs used 2.5" SCSI and their devdocs include the pinouts.
Also, I'm mixing threads here:
http://www.applefritter.com/node/view/4401
but the below seemed to fit here better.
The 1GB Apple SCSI PB drive uses an ADTX SCSI - IDE bridge with a ~8GB drive size cap. For more info:
http://mywebpages.comcast.net/macdan/pb_scsi_ata.html
re: adapting to 3.5", why go through the bother making the adapter yerself when an adapter board costs $3.50?
http://www.pimfg.com/product_detail.asp?part=250-SCSI
Nutz, they seem to no longer stock these, but I'm sure others still do.
searching . . . . .
Crud, prices higher elsewhere for same thing:
$9 http://www.cablemakers.com/scsi_adapters.htm item #FLT-3130
$19!! http://www.mycableshop.com/sku/UNV25SCSI.htm
Oh well, whatever. Hey, I'm tryin' here!!
dan k
And it's appreciated