On Thu, May 20, 2004 at 06:44:26PM -0400, Dan Veeneman wrote:
> Back panel says it's an 11C23-F.
OK... an 11/23 with some amount of memory and disk. Given what I
remember of those days, I'd guess either an RD51 (10MB) or RD52 (30MB);
probably not an RD53 (73MB) or they'd have gotten a faster processor
at the same time, and probably not an RD50 (5MB), but it's possible.
Not sure about memory, but 1MB sounds like a good guess, based on
what cards were common in that day. It takes up to 4MB, but, again,
given costs, you'd more likely see an 11/53 or 11/73 with a full boat
than an 11/23.
Fun little system... it will run lots of stuff that doesn't require a
CPU with Split I&D space - RT-11, MicroRSX, 2.9BSD (with MSCP patches)
I'd recommend RT-11, but I'll be curious to hear what's on the disk.
> >> I hefted a Heathkit H-47 eight-inch drive housing (no drives) back
> >> to the car. Quite heavy.
> >
> >Do you have the Heathkit Qbus card to go with it or just the drives?
>
> Not even the drives -- just the housing and power supply.
Ah... so you said. I can't recall what drives are in mine, but IIRC,
they are rather ordinary (for their day) 8" drives with a 50-pin
edge connector. There's plenty of smarts in that box (or at least
there _were_). OTOH, having a nice mounting spot for 8" drives with
the right PSU for the motors (24V, commonly) is handy, even if you
have to run the 50-pin cable to some CPU box somewhere.
What I can't recall is what systems besides the H-11 that box might
have worked with. I also don't know if the boards in the H-47 were
different for different hosts. I'm sure that information can be
found, though.
> About 100 little TI boxes, each about the size of a pack of cigarettes,
> each containing a different set of parts...all for $10.
Nice. I consider TIL-311s to be cheap if found for under $2 each. You
can still find them in abundance for $7-$15.
> Yep, everything wrapped in plastic tarps makes it hard to see what's
> available. But when you do find something, and the seller is still
> there, he's usually willing to deal.
Finding someone is usually the trick at that point.
-ethan
--
Ethan Dicks, A-130-S Current South Pole Weather at 20-May-2004 22:40 Z
South Pole Station
PSC 468 Box 400 Temp -62.5 F (-52.5 C) Windchill -106.6 F (-77 C)
APO AP 96598 Wind 20.3 kts Grid 013 Barometer 679.2 mb (10655. ft)
Ethan.Dicks_at_amanda.spole.gov http://penguincentral.com/penguincentral.html
Received on Thu May 20 2004 - 17:51:56 BST