🚀 go-pugleaf

ric <btgsch@rmplc.co.uk> wrote:

> Rebecca and Rowland <real-address-in-sig@flurbletigibbet.rhubarb.foobar>
> wrote:
> 
> 
> > Admittedly, we only use the Plus and 475 regularly, but I'm intent on
> > getting the 512Ke LocalTalked to the other machines.  This might be
> > useful if we can figure out some useful task for a virtually memory-free
> > computer in the kitchen...  And maybe I'll be able to resurrect the
> > Portable one day - it's actually very nice, if you don't mind System
> > 6.0.8 off a 1.4MB floppy ('cos the HDD's dead) and 1MB RAM.
> > 
> I've been lusting after a portable for a while now. IIRC, it takes
> standard 3.5inch HDs, so why not get a new internal drive for the 475
> and put the old one in the portable?

Alas, this won't work.  They take special HDDs :-/  SCSI, but a
non-standard connector for some deviant reason - I think it's got
something to do with having to supply power to them and so on.

> BTW, do you know what the termination rules are for HDs on a Plus, I'm
> getting nowhere getting mine to recognise SCSI devices at the minute.

As far as I know, you just need to terminate the last device on the SCSI
chain as usual - a plug-in terminator seems to be the best idea as far
as I can tell.  The problem with Mac Pluses is that the design pre-dates
the final version of the SCSI 1 standard, so it's almost-but-not-quite
standard SCSI.  I've heard of problems trying to boot them off Zip
drives and the like.

I had no trouble connecting my 20SC HDD to it, but that shouldn't be
much of a surprise.  The only other thing I can think of is the Classic
Macs mailing list:

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Rowland.

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