3.5" MFM hard disk

From: Jeff Hellige <jhellige_at_earthlink.net>
Date: Tue May 29 12:26:58 2001

>
>
>On Tue, 29 May 2001 09:56:17 -0400 "Jeff Hellige"
><jhellige_at_earthlink.net> writes:
>> The board is from Sun Remarketing and is labled as being
>Ah, I see. It's some whacko custom thingie. Didn't the Lisa originally
>use some kind of ProFile-ish thing (custom interface, custom drive
>electronix, etc.).

    The Lisa's external Profile hard disks (5 and 10MB) and internal
'Widget' hard disks both ran off of a parallel interface. I've not taken my
Profile apart enough to determine exactly what's inside of it but the Lisa
2/10 internal drive certainly appears to have been a custom setup. There
are like 3 circuit boards mounted above the drive assembly itself. I really
should put the effort into getting the Profile working but thought I'd try
to figure out this other setup first.

>Hm, very interesting! I wonder what model they used? Like I said
>before,
>most of the early SCSI boards from Adaptec (and most of the other mfr's
>as well at that time) were only partial SCSI implementations.

    I'll take the cover off of the SH-204 and report the board ID once I get
home.

>Ah, well, mebbe I stuck my foot in my mouth-- the ST did have a SCSI
>interface, didn't it? Or was it yet another whacko custom thingie . .

    If I remember correctly, the ST's interface was close to SCSI, close
enough that ICD created some relatively small interface adapters for it.

    Jeff
Received on Tue May 29 2001 - 12:26:58 BST