I recently added a VAXStation 3100 M48 to my collection. As with almost
every other bit I've added, I got a few questions:
1) The output from a >>> sh mem command is:
01000000
00000000
00FE3E00:00FFFFFF
What does this translate to???
2) What monitor would I need / be able to use with this box? I'm using
VT320 for a console now, but the thought of an OpenVMSWindows box has
potential....
3) When I try to boot from the external RZ55 I got with it, VMS 5.5.2
comes up and hangs (solid) after displaying:
%TMSCPLOAD-I-LOADTMSCP, loading the TMSCP tape server
This happens even trying to boot to VMS's single user mode, and
with or without a TK50Z attached...
Any thoughts???
Thanks....
Stan
On Oct 15, 18:41, Tony Duell wrote:
> Subject: Re: pdp8/f (now Amiga poster)
> > case of good manners. Once you've made a deal with someone you simply
don't
> > back out just because you got a better offer etc - it's just NOT done!
:-(
>
> One thing I've learnt from this thread is that there are people here who
> I do not intend to make deals with -- ever. Their standard of behaviour
> and mine are just too different.
Before anyone gets too much more upset by this discussion, perhaps I should
mention that John just told me that if I really wanted the book, he thought
it had once been available on the web. That reminded me of something I
checked out a year or two ago. The curious might investigate
https://toolbox.sgi.com/toolbox/hardware/hwHandbook/
but don't expect vast amounts of serious technical info.
BTW, if anyone has the "GIO Bus Specification" referred to in Chapter 4,
I'd like a copy :-)
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
In a message dated 10/15/99 7:19:17 PM Eastern Daylight Time,
peter.pachla(a)vectrex.freeserve.co.uk writes:
> I've already posted this to the PS/2 newsgroup but thought I'd drop it in
> here
> too just in case - I believe the machine in question is old enough (or odd
> enough) to qualify.
>
> Basically I'm in the process of restoring a Model 50 I was given recently
> and
> was wondering if anyone could point me at a technical reference guide for
> the
> machine?
http://www.pc.ibm.com/us/cdt/hmm.html
> I also have a couple of questions.
>
> 1) The machine contains what I assume to be the hard disc controller, what
> capacity/type of drives will the machine accept - and where can I get one?
you can only use drives originally assigned to the machine unless you want to
go scsi external...
>
> 2) Can the machine accept 2.88Mb drives (this one is purely out of
interest)?
>
no. not supported.
> 3) There is an expansion card with no markings on installed in the slot
> farthest away from the PSU. It is connected to what appears to be the
> processor socket ('286 right?) by a section of flexible PCB.
>
> The card has a daughter board attached which is about half as long as the
> card. The visible part of the main PCB contains three (empty) 72-pin SIMM
> sockets.
>
> Any ideas on what this may be (some sort of turbo board, 386SX upgrade,
etc)?
run peter wendt's adaptor card id'er program. goto
http://members.aol.com/mcapage0 the program is listed on the ps2 support
page he has.
>
> Was it fitted as standard or was it added later?
>
> 4) The "paddle" on the power switch has been broken off. Can I get a
> replacement switch or do I need to get a new PSU?
only way to fix is replace ps from a parts machine.
>
> Thanks.
>
>
> TTFN - Pete.
DB Young Team OS/2
--> this message printed on recycled disk space
view the computers of yesteryear at
http://members.aol.com/suprdave/classiccmp/museum.htm
(now accepting donations!)
I didn't ever see an answer to this post nor am I sure it ever went out.
Sorry if this is a repost...
----- Original Message -----
From: Jay West <west(a)tseinc.com>
To: <classiccmp(a)u.washington.edu>
Sent: Tuesday, October 12, 1999 8:01 PM
Subject: PDP-11/44 assistance....
> Tony had asked about what chips were in the standard memories board that I
> posted about....
>
> It is Standard Memories MM-144. Unibus: there's two rows of 20 ram chips
> each, and underneath that is two rows of 20 empty sockets each. Underneath
> that is two rows of 19 ram chips each, and underneath it is two rows of 19
> empty sockets each. So, (2x20)+(2x19)=78 chips total. The chips are all
OKI
> M3764-20RS. On the right side of the board on the top are three LED's
> designated +5B, RUN, and U.ERR. Underneath that is a 14 pin DIP jumper
pad,
> and two 8 switch DIPS. Any ideas on how much memory this is and would
anyone
> happen to have docs on this board?
>
> Also, I think my previous post about the modules in the 44 wasn't listed
> correctly. The slots are filled as follows:
>
> 1 A-B M7090 CIM
> 4 A-F M7094
> 5 A-F M7095
> 6 A-F M7096
> 7 A-F M7097
> 8 A-F M7098
> 10 A-F MM-144 (see above)
> 14 A-B first half of M9202
> 15 A-B 2nd half of M9202
> 16 D G727A
> 23 M9302
>
> I found it odd (to my very uninformed mind) that the G727A was stock in
slot
> 16 D with nothing else around it. If I don't want to hook anything up to
> this system other than a serial console for now, how should I move the
above
> cards around to prevent continuity problems???
>
> Thanks in advance!
>
> Jay West
>
>
>
Hi all,
there are 5 RL02 drives sitting at a scrapper in the San Diego area.
All Computer Surplus 297 S Marshall Ave El Cajun
Since I am travelling, no time at hand, and furthermore facing the 50 Hz/60 Hz
problem, I could not do anything about it.
John G. Zabolitzky
On Oct 15, 19:18, Tony Duell wrote:
> > Now I've never used a RL02 drive on 50Hz power, but I'm 99% certain
that
> > the motor speed in a RL02 is determined by a servo loop, and thus
> > not locked to a multiple of the AC frequency.
>
> Currect. From the RL01/RL02 Technical Manual :
>
> 'RL01/RL02 drives are shipped from the factory as 115Vac/60Hz units.
> Field change to 230Vac 50 or 60Hz is acoomplished by reversing either of
> two terminal block covers located externally at the rear of the drive.
> The RL drives run the motor at considerably below synchronous speed. They
> control the motor speed with a couple of triacs on the AC Servo Module,
> and measure the speed (IIRC) using the sector pulse timing. That's why
> the disk spins _very_ fast if you forget to plug the transducer in...
Or if the AC servo board goes in certain ways, as I discovered in one of a
pair I got from Heriot-Watt University: the local DEC engineer had at some
time in the dim and distant passed fixed one drive by swapping the AC servo
for one that was rarely used.
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
Hi Folks,
I finally got something that I've been after for a long time. It's a
Tektronix System Test Fixture, PN 067-0746-00. It's for the Tektronix 4051
computer, 4662 Plotter, 4924 Tape unit and other Tektronix items that use
the 6800 CPU. It's a box with switches and indicator lights that lets you
halt the system CPU and view and change the contents of any memory
location, single step the system, etc. You can also set it to halt the
system when it gets to a certain address or when a certain data word
occurrs. It also contains a ROM with test routines for the 40551 computer.
A friend of mine found this at a flea market and I've been trying to get it
away from him for months. My persistance finally paid off.
Joe
While reading the usual morning mail, a bit of irony chased its way
through my gray matter.
While on my recent trip to the Bay Area, both to attend part of VCF and do
a little scrounging, I was high bidder for a nice HP 545A logic probe a
fellow had up on E-pay (around $25 if I recall). I was able to pick it up
while on said trip, as he lived in south San Jose.
Picking this up completed my collection of HP's logic
probe/troubleshooting family: Probe, pulser, and current tracer. To this
day, I still consider this set one of the best for poking around in both
legacy and current logic circuits.
A few months back, when I'd gotten hold of the current tracer, several
folks were envious, though I couldn't understand why even after asking
around and getting a basic idea of what it was used for.
I'm now well into my second year towards my A.A.S. degree in Electronics,
and my current class is Intro to Digital circuits. I find it most ironic
that my textbook, published less than a year ago, should make extensive
reference to all THREE HP probes (which were first developed in the
mid-70's or earlier), including the current tracer, and show clear
illustrations of how they're all used to find stuck levels, shorted inputs,
etc.
What works well does indeed endure. ;-)
I do not regret going back to college, despite the effort of cramming
Boolean algebra and Karnaugh maps into my gray matter! (though I find I
really do like working with Karnaughs. They simplify things immensely!)
On we go...
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner and head honcho, Blue Feather Technologies
http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com
Amateur Radio: WD6EOS since Dec. '77
"Our science can only describe an object, event, or living thing in our
own human terms. It cannot, in any way, define any of them..."
