Re: Mystery card

[lee@lcremeans.erols.com (Lee Cremeans)]

In article <3921DE53.978D0999@inetnebr.com>, Roy and/or Janet Miller wrote:
>Roy and/or Janet Miller wrote:
>
>> I bought an Apple //e today with a card in it that I can't identify. The
>> connector
>>  on the outside has a D shaped end with 37 pins. On the keyboard edge
>>  of the card itself are 50 pins.
>
>Well, this card is in slot 7, in slot 5 is an AE PC Transporter card, and
>IBM PC has a 37 pin connector to external disk drives. I suspect that this
>card drives IBM 360K DS/DD drives.

Actually, the card's too simple to be a MFM floppy controller; even the 360k
cards in the original PC and XT used an Intel 8272 (aka NEC uPD765C) MFM
controller chip, and there were more external components as well. Also, the
Shugart floppy bus would use a 34-pin internal header, not a 50-pin; PCs did
use a DB-37 for the optional external floppy, but I think that's an IBM
thing. Judging from the simplicity and the connections given, my guess is
that this is a SASI card, but I don't know enough about SASI to make the
call for sure.

-lee

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|      Lee Cremeans -- Manassas, VA, USA  (WakkyMouse on WTnet)      |  
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