Ridge 32/330 up and running!
derschjo at gmail.com
Sun Mar 29 00:32:21 CDT 2015
And, of course, right after I send this out, after having run flawlessly
all day, one of the +12V rails has gone poof. Looks like I have some
more debugging on my hands :)
On 3/28/15 10:16 PM, Josh Dersch wrote:
> Hey all --
> Last summer I picked up a Ridge 32/330 that became available locally.
> This is a fairly obscure early RISC machine intended to be a
> competitor to the VAX, it uses a 32-bit CPU at 12.5Mhz built from
> discrete components (spanning three large PCBs). Mine's outfitted
> with 8mb of ECC memory, Pertec, SMD and SCSI QIC controllers, and
> You can see some pictures of this beast at:
> I got it running late last year after rebuilding the QIC tape drive
> and dealing with some intermittent failures due to a couple of
> low-quality DIP sockets. I now have a set of dedicated 20A circuits
> installed in my basement so I can run it for longer periods of time
> without worrying about burning my house down, so I'll be running it
> for the next couple of weeks just for fun to keep the basement warm
> and run up my electrical bill :).
> It's currently running RX/V 1.1 (Ridge's UNIX variant) and it's on the
> Internet (indirectly, since exposing a 25-year old UNIX directly to
> the 'net seems like a bad idea). I thought maybe some people here
> might be interested in checking it out since it's pretty obscure, if
> you want an account to play around, drop me a line and I can hook you
> up. I don't know of any other Ridge machines out there (running or
> not) -- if you have one let me know, there's very little information
> out there on these things.
> I'll add that I'm looking for an external SMD cabinet and cabling so
> that I can image the original SMD disk that was in the Ridge when I
> got it; it looks like it contains a valid partition table, but it will
> not boot. I didn't want to wipe it so the Ridge is currently running
> off of a spare drive -- I'd like to hook it up externally to dump an
> image from the running RX/V system. If anyone has one to loan
> (preferably within driving distance of Seattle) let me know.
> Once that's done, it's time to figure out how to get the Eagle that
> came with it running again...
> And a huge thanks to Al Kossow for archiving the OS media that's on
> Bitsavers, without which this machine would be a very large boat
> anchor taking up many cubic feet in my basement. (If anyone has any
> media or docs for this that aren't on Bitsavers, let me know -- I'm in
> particular looking for an ROS distribution on QIC media...)
> - Josh
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