The Unidisk 3.5" has an in-the-case intelligent controller that communicates with a Unidisk or //c (except the very first model) controller. The Apple 3.5" drive does not have that in-the-case controller. The drive mechanism for both is the same, and in fact it's possible to bypass the in-the-case controller on a Unidisk 3.5" to make it (almost) identical to an Apple 3.5" drive. However, it's not possible to use an Apple 3.5" drive on a Unidisk controller.
Hal is correct, you can not daisy chain 3.5" and 5.25" drives on a //e, you can only do that on a //gs (and maybe on a //c+). You can have both types of drives on a //e, but they must be on separate controllers. It's possible that a third party made a controller that can handle both types, but not that I remember. Geoff ----- Original Message ----- From: "Hal" <[EMAIL PROTECTED]> To: "Apple2list" <[EMAIL PROTECTED]> Sent: Tuesday, November 09, 2004 09:34 PM Subject: Re: Wanted: UniDisk 3.5" drive Hi. The Apple 3.5 drive and the Unidisk 3.5 are completely different drives. I'm not sure that an Apple 3.5 controller will work with a Unidisk 3.5 in a //e. I thought you needed the Liron controller card to work with the Unidisk drives. Am I wrong here? I do know that you can't daisychain a 3.5 and a 5.25 (or a duodrive) on the same controller on a //e. I believe that the IWM chip on the drive card will only work with one kind of drive, either it's a 5.25 controller card or a 3.5. Hope this helps. -Hal -- Apple2list is sponsored by <http://lowendmac.com/> and... / Buy books, CDs, videos, and more from Amazon.com \ / <http://www.amazon.com/exec/obidos/redirect-home/lowendmac> \ Support Low End Mac <http://lowendmac.com/lists/support.html> Apple2list info: <http://lowendmac.com/lists/apple2.html> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/apple2list%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
