Hi, I need CP/M, either floppy or cart based, for my Exidy Sorcerer.
I want to format and use the floppy drives - I have the S-100 expansion and interface card.
I?ll make a copy and return your disk if you have one.
Thanks-
Steve.
I found over a full box of fan fold paper for an MX-80
that was hiding all these years. It's here in Ottawa Canada so
if you want it and can arrange pick up it's yours. Otherwise it's
scrap paper. This isn't worth the shipping!
Diane
--
- db at FreeBSD.org db at db.nethttp://www.db.net/~db
Bitsavers has preserved a couple of key marketing studies that help me understand the wide world of disk storage in the 70's and 80's. For example http://www.bitsavers.org/pdf/dec/competitiveAnalysis/Engineering_Strategy_R… has numbers both for DEC and world disk market. DEC sales were a substantial chunk of the world market of disk sales and the document seems to understand the up and coming world of small disks while also having good numbers on the mainframe disk world.
I wonder if we have any documentation (probably internal numbers but maybe also including guessing at competition) of, say, reels of half inch magtape sales sold in the past. Chances are this would be a 3M or competitor's document since the bulk of magtape media sales were not normally done through DEC or IBM etc.
For example I might guess that by the 1980's there were 5 reels of 2400foot half inch magtape for every person in America and tapes were reused up to 10 years. That would imply that 100 million reels of tape were sold a year. But that's just a guess and maybe I'm off by an order of magnitude one way or the other.
So if you know of any documents to help me get a comprehension of the scale of computer tape manufacturing in the 1970's and 1980's, please let me know! It might be a 3M press release bragging about opening a new plant and what it's capable of, for example.
Tim N3QE
> From: Al Kossow
> is it roytron/Roytron500_1966.pdf ?
That sure looks like it! The illustration on pg 5-16 of the DEC PC054/PC05
manual looks just like the thing illustated on the cover of that.
I wonder why it didn't turn up in the Web searches? Probably because this
doesn't include the term 'maintenance manual'?
I'll add the link to the article.
Thanks!
Noel
So, for needs of my own I've been studying up on the PC04 and PC05, and also
the differences between them (which cables they use, etc, etc).
I decided I should write up what I've learned, since there's no simple source
for all this stuff; the remaining documentation is kind of spotty (lots of
things are no longer extant, or at least not available online), and I've
gathered data from far and wide. So I have most of it now written up,
available here:
http://gunkies.org/wiki/PC04/PC05_Paper-Tape_Reader/Punch
(and feedback, comments, corrections, etc would be most gratefully received),
but one area which I wasn't able to cover as definitively as I'd have liked is
the PDP-8 connectivity (cabling, etc). I was able to glean a few details from
the PC04'05 Manual (DEC-00-PC0A-D), but the details of the cables, etc for all
PDP-8 models _other_ than the PDP-8/E I couldn't locate.
So, can I appeal to anyone who has, or can point me at, documentation for the
connection of the PC04 to _other_ PDP-8 models please lend a hand -
_especially_ if you have paper documentation which is not available online?
And speaking of online documentation, it turns out (to my initial surprise,
but it makes sense) is that the M7810.is _not_ the first PC11! There was an
earlier one, the M781 card, which (like the KL11->DL11) is program compatible,
but is a dual card which one uses with an M105 and an M7821.
So I have access to a set of prints for that, and will scan them and make them
available at some point - but if anyone has any use for it, please let me
know, and I will accelerate that.
If uses BC08F cables, the details of which _aren't_ included in the drawing
set (grrr!), so again, if anyone has that info, I'd appreciate a copy.
Finally, speaking of missing stuff, several DEC manuals refer to the "Roytron
Model 500 Maintenance Manual" (alternative title "Royal-McBee Model 500
Maintenance Manual"), which again I couldn't find. Does anyone have a copy
of this?
Thanks!
Noel
XT boards
IBM 1501994 Async card
83X9262 or 3
qty 3) 110-6135952-01 serial/ parallel
6236194 JB125540 has DB25
Sysgen PSA 1030 30-02131
Seagate 20917 Everex EV138 memory
30150986? B/W Parallel
WDXT-GEN 61-000222-08
AT boards
qty 2) Interlan NT 600A-3
DET 55X3543
AST 20297
AST Premion 386 Cache mem ME/2MB
181-7043-3E 85-3408-01
181-7044-3E 85-3331-01?
AT&T TARGA-1.0
Verticom GPG assy? 3 board set
DC4030VL-1 IDE/floppy/mem
WD1988 1006V? drive cont
TMC-1680Future Domain a flop/ SCSI
EV346 drive cont
3COM ETHERLINKS III
3COM ETHERLINKS 16
If you have any questions or interest, please contact me off list.
I would prefer to sell by the lot. Sorry for any typos,
Thanks, Paul
Chuck Guzis <cclist at sydex.com> wrote:
> I'm looking for a small quantity of 10.5" half-inch reel tape seal
> belts. These are the things that almost everybody with a large
> collection of tapes used to hang their half-inch tapes in racks made for
> the purpose.
> I can't seem to find anyone who is sitting on a pile of these.
You just found someone.
What color(s) would you like?
The only catch is that I am moving from Los Angeles to Oregon, and
they are on a moving van. Seriously. They just finished loading,
and the truck is still sitting in front of my house while the crew
cleans up. They also loaded three tape racks and about 500 tapes.
I won't be following them to Oregon until September, and it may be
a few weeks before I can find and unpack one of the boxes (over 800).
E-Mail me after Labor Day and I'll see what I can dig out for you.
Be warned that I may not have my email server up and running right
away.
Long-distance moves can be "interesting" (and expensive) for someone
who is: A vintage computer enthusiast, an home shop machinist, and
a book fanatic, with a wife who shares my book "problem". :-)
Examples include: A Century Data T302-RM disk drive, multiple DEC
H960 racks with TU56 DECtape drive, 9-track tape drives, etc.,
a Bridgeport CNC milling machine, two lathes, and lots more shop
equipment. They ran out of axle weight capacity before they ran
out of space in the semi-trailer.
Alan "Packrat" Frisbie
I'm still sorting and found a few IBM83X9648 boards and 8 or so Novell
816-312 also numbered 738-154-001. AT and XT boards next.
If you are interested or have questions, please contact me off list.
Thanks, Paul
Does anybody know if external 3.6 VDC batteries, like the TL5242, are
the counterpart for on board 3.0 VDC batteries, like the BR2335-T3L?
--
Grant. . . .
unix || die
I will send these out free for cost of shipping.
These two really should go to people who *own* the machines covered.
VAX11/780 Hardware Handbook 1978(!)
PDP11/45 processor handbook 1971(!)
IBM DOS Technical Reference (the 3 ring binder + box)
Greenleaf Software Comm Library (3 ring binder + box)
I don't think any of these will be a problem mailing to U.S.
P.S. I am still waiting on confirmations for the two Livingston PM-11's
Diane
--
- db at FreeBSD.org db at db.nethttp://www.db.net/~db
