3.5" MFM hard disk

From: Jeff Hellige <jhellige_at_earthlink.net>
Date: Tue May 29 16:51:01 2001

> > The Kalok is 615 cylinders and 4 heads. It's currently
>> connected to a converter board, similar to the ones that Adaptec
>> used to make for connecting MFM drives up to various other interfaces.
>
>Yeah? Which make/model? If it *were* Adaptec, I'd bet it's an ACB-4000,
>in which case it's MFM<->SCSI (sortof). What sort of machine is it
>going into?

        As stated before, the board was made by Sun Remarketing and
it's their part# 00-002 and has the following major chips on it:

        - SCN8031HCCN40
        - UM6116-3
        - SMS OMTI 20513B
        - SMS OMTI 20507
        - Sun Remarketing ROM 341-8005

        There are also various resistors and surface mount chips
(74LS374B1, 74LS373N, 74LS280B1, 74LS08N, 74LS14N, MC3487P, MC3486P).
There's a 26pin header input from the parallel output of the Lisa as
well as a power input. There are then the standard MFM dual cable
outputs to the hard disk as well as a power connector going to the
hard disk.

        Jeff
-- 
       Collector of Classic Microcomputers and Video Game Systems:
                      Home of the TRS-80 Model 2000 FAQ File
                 http://www.geocities.com/siliconvalley/lakes/6757
Received on Tue May 29 2001 - 16:51:01 BST

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