I've got a PDP8/A chassis which has a card cage that has been tweaked
off in the front just a hair. Enough that you can't get the cards in by
an interference amount of clearance.
Anyone have any idea on how they handled this? I'm thinking of using
some blocking and then a 36 or 48" pipe clamp to apply diagonal
persuasion to get it back in true.
The rear of the box is not impacted.
In the body shop trade this is called "diamond" and usually gets your
car totaled if your frame has that damage term applied to the chassis.
I don't see any other damage other than this, no chip damage or cracking
to the back plane, which is of course brittle. The rear dimension of
the chassis is good, and I can't see what caused this. Could have been a
drop, or could have been under too many layers of crap and was tweaked.
Other clever ways to apply very gentle but forceful pressure to true up
the cabinet is appreciated. Also how much to go past square to account
for the "spring" back of the steel once the force is removed would be
nice too.
Thanks
Jim
Hi,
Over the weekend I was looking through some old CAD files and came across my
original design for the MEM11A. It was an SPC board that contained only 128KW
of FRAM.
I?m wondering if there?s any interest in that board. I do have to iterate on the design
a bit but I should be able to get something ready sooner than with my current board
design (plus I know it will fit in an SPC form factor because I?ve already done it).
What I?d like to know from folks is if there?s interest in that design? Would there still
be interest in what I?m now calling UMF11 (Unibus Multi-Function)?
I won?t have pricing (on either) until I build (and debug) a couple of prototypes because
I need to know what the assembly costs would be (no I won?t be offering kits).
To also answer the other question, no I haven?t run into any issues with the UMF11,
I just came across this long forgotten design and wanted to know if there?s any
interest in it as I can probably get it into ?production? sooner than the UMF11.
Thanks.
TTFN - Guy
I will have to try this...
a great undertaking Dave!
Ed# _www.smecc.org_ (http://www.smecc.org)
In a message dated 3/8/2016 6:29:11 A.M. US Mountain Standard Time,
jwest at classiccmp.org writes:
Awesome Dave! Can't wait to test drive it. A very sincere Thank You for all
the time & effort you've spent on that.
Best,
J
I am pleased to announce the release of a simulator for the HP 3000 Series
III computer system. It is available from the Computer History Simulation
Project (SIMH) site:
https://github.com/simh/simh
The simulator runs the MPE-V/R operating system, supports a selection of
simulated disc and tape drives, and accommodates up to sixteen concurrent
users. A software kit containing a disc image with MPE preinstalled is
available as described in the release notes that accompany the simulator.
I would like to thank Frank McConnell and Al Kossow for their invaluable
help in answering questions and supplying documentation for the HP 3000.
-- Dave
I see on the usual site, an 11/23 box with a couple of random boards,
one of which is an M7608 board. This is a Microvax memory board.
I wonder if one can build up a Microvax in that backplane, or if that is
not recommended. It would obviously be an 18 bit backplane. The
backplane is H9276A.
The auction also has a M9047 Bus grant card in it, so is essentially
just the box. But I'd never seen Microvax parts plugged into those
backplanes, and it made me think.
thanks
Jim
I have been going to our HP 21MX paper tapes that come with a M-series
system that we received many years ago:
http://www.datormuseum.se/documentation-software/hp-paper-tapes
I tried to check if they already were available online somewhere but didn't
find them when doing quick checks on random tape part numbers in the spread
sheet. Maybe they are and then I don't need to bother reading them.
Otherwise I will try to read them if there are interest and when I get time.
/Mattis
Anyone have a source for IDC cables / supplies? I'm in need of some 40,
50 and various other cables and connectors.
I need some specifically for dec systems so those would be even better.
The most urgent need is cables for the PDP 8/A front panel cabling. They
are all 40 pin. I've got a unit with the programmers panel, so need
cables for it and for the basic power panel.
thanks
Jim
We communicate today, as yesterday, via email. Ray Tomlinson,a 1960's
ARPAnet pioneer has passed on. He 'invented' the @ symbol. My how old
things are truly great.
Murray :)
