Apple IIe and daisy chaining 5.25" floppy

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Apple IIe and daisy chaining 5.25" floppy

I have the IIe with the usual disk controller card, and was running a 5.25 floppy model A9M0107.  Worked fine.  Then I added a second drive, same model, using that as Drive 1 and the existing drive as Drive 2 attached to Drive 1, daisy chain.  The (new) Drive 1 works fine, but Drive 2 (the drive that worked fine as sole Drive 1) appears to be dead.  Is there anyhing else I have to do with the daisy chain?  Or is there a way to get the IIe to look at Drive?  I tried Catalog ,D2, but get an I/O error.

I know both drives are good as indicated above (unless the daisy chain connector is bad).  Any help appreciated.  

Edit:  I switched drives around, same thing, only the opposite drives work, don't work.

Is there some limitation of an (unenhanced, for now) IIe that I am not aware of?  Or of the controller card?

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Yes, you need the   Apple I/O

Yes, you need the Apple I/O Controller card (820-5003-A aka 655-0101) which has a DB19 connector on it to control two daisy-chained drives. There are also cables that can attach to the standard DISK II controller card that picks up the second drive enable pin.

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Uggh.  That functions

Uggh.  That functions differently than the "Disk ][ Interface Card," model 600-0037 that I have?

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mreg376 wrote:Uggh.  That
mreg376 wrote:

Uggh.  That functions differently than the "Disk ][ Interface Card," model 600-0037 that I have?

Yes, your card has two disk connection ports. They are identical except for the drive enable signal. You can make a cable to convert the header (+one connection to drive 2) to a db-19 if you want to.

 

If you don't want to mess with that, this is what you should get:

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Of course.  Thanks.  I may as

Of course.  Thanks.  I may as well just shove my credit card into one of the slots...

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Another option is to open up

Another option is to open up the drive, remove the cable and replace it with one with an IDC 20 connector on both ends.

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mreg376 wrote:Of course.
mreg376 wrote:

Of course.  Thanks.  I may as well just shove my credit card into one of the slots...

 

Lucky this stuff is still mostly pretty cheap compared to when it was new.

 

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Haha true!

Haha true!

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