21 Mar
2012
21 Mar
'12
1:17 p.m.
On 3/21/12 10:00 AM, cctech-request at classiccmp.org wrote:
> > On 03/19/2012 11:53 AM, Kevin Reynolds wrote:
>> >> Anyone have working RA90 or RA92 disks that they would like to part
with?
>> >> Send me a private response with pricing and availability. I'm in
the US.
> >
> > I make the same request, in case someone has a bunch. =) I'm
interested
> > in RA8x drives as well.
> >
I have a couple of RA81s that were working when I got them 13 years ago
(but haven't been powered on since).
Located in the Seattle area.
alan
21 Mar
21 Mar
1:49 p.m.
From: Alan Perry
Sent: Wednesday, March 21, 2012 10:17 AM
I have a couple of RA81s that were working when I got
them 13 years ago
(but haven't been powered on since).
Located in the Seattle area.
16-bit or 18-bit format? Which is to say, 512-byte or 576-byte sectors?
;-)
Rich Alderson
Vintage Computing Sr. Systems Engineer
Vulcan, Inc.
505 5th Avenue S, Suite 900
Seattle, WA 98104
mailto:RichA at vulcan.com
mailto:RichA at LivingComputerMuseum.org
http://www.LivingComputerMuseum.org/
8:41 p.m.
Rich Alderson wrote:
16-bit or 18-bit format? Which is to say, 512-byte or
576-byte
sectors? ;-)
Do ya feel lucky? :-)
I didn't bother asking, because they're always 16-bit.
I've looked briefly into the possibility of building a servo writer to
reformat RA81 HDAs, so that 16-bit HDAs could be turned into 18-bit. It
doesn't seem completely insurmountable, but it would be a fair bit of work.
The other problem I'd have with RA81 drives is that even if I had an
18-bit HDA, I haven't yet been able to get an HSC50 to use it on. I'm
told that no later model HSC supports 576-byte sectors. I've got two
HSC70s, and would be happy to trade them for HSC50s.
22 Mar
22 Mar
5:53 p.m.
On Wed, Mar 21, 2012 at 10:17 AM, Alan Perry <alanp at snowmoose.com> wrote:
I have a couple of RA81s that were working when I got them 13 years ago (but
haven't been powered on since).
Located in the Seattle area.
Are you offering those up in return for something? I have an RA82
here in the Seattle area that I have never been able to get to spin up
or do anything at all. I haven't been able to get anything out of the
diagnostic port. I have found the RA81 service manual online, but not
the RA82 service manual. It would be interesting to get it working
just to see it working.
-Glen
23 Mar
23 Mar
4:22 a.m.
Glen Slick [glen.slick at gmail.com] wrote:
Are you offering those up in return for something? I have an
RA82 here in the Seattle area that I have never been
able to
get to spin up or do anything at all. I haven't been able to
get anything out of the diagnostic port. I have found the
RA81 service manual online, but not the RA82 service manual.
It would be interesting to get it working just to see it working.
The RA82 Field Maintenance Print Set (MP01427) is around (although I
can see that a maintenance guide might be of more help).
Antonio
4509
days inactive
4511
days old
4 comments
5 participants
participants (5)
-
alanp＠snowmoose.com -
arcarlini＠iee.org -
eric＠brouhaha.com -
glen.slick＠gmail.com -
RichA＠vulcan.com