There's (maybe still) one up at the Veteran's Thrift on Beach Blvd
(Jacksonville, FL) It was $30... (I bought the unboxed one for $4) If
someone wants it, let me know and I'll swing by and see if its still
there...
Regards
- Mike: dogas(a)leading.net
Just made a trip to the local surplus shop, and they have a whole cart full
of DEC VT1000's and VT1200's. Appears to be just a base unit (no monitor,
etc.)... They wanted $15.00 each.
I know nothing about these devices at all, but thought I'd post here in case
anyone was "in search of" so to speak...
Jay West
If anyone has any M7622 (16MB MS650/MicroVAX 3) memory boards they wish to
part with, and were considering carting to the VCF swap meet, I would
certainly consider buying if the price is right... ;-)
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
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..."
I went scrounging again today and brought home a large Zenith computer.
Model number ZDF-121-32. It's about 18" wide and 14" tall and has an
attached keybaord. It has two 5 1/4" floppy drives on the RH side of the
front and a ~12" monitor on the LH side. Can someone tell be what it is and
what kind of OS it uses? I also need OS, software and manuals if anyone
has them.
Thanks,
Joe
Hi!
Just bought an IBM PS/2 Model 25 and Im looking for some info on it. I.e docs..
And I have a few questions. Can I get a bigger HD for it? Currently it has a 20mb HD
wich I figure is standard.
Is it possible to compress it?
About how far can I upgrade it?
And finaly: The screen "Display" is rather small.. But I cant find any knobs or anything to ajust it.. Any Ideas? Or am I just stuck with it..
Sorry for all the questions..
Michael Sunbear(*)
On Wed, 15 Sep 1999 Zane H. Healy wrote:
> > That's the least painful way I can envision, since the APPLE diskettes are
> > totally foreign to "standard" modulation schemes used with FD's and their
> > controllers. It would not surprise me to learn that there's an easy way to
> > do this same thing with LINUX as well.
>
> Probably the best card for this would be a PC version of the Catweasel.
> However, I don't know what the software availablity is for these. I will
> say this, after buying one for my Amiga, I WILL NOT recommend the card to
> anyone. The card itself is supposed to be able to read just about any
> microcomputer format of the 80's, BUT there is no software to let you do
> this!
If you have access to an Amiga, you don't need any extra hardware (apart from a
5.25" floppy drive of course) to read Apple ][ disks. There is a program
called Disk2File that creates plain disk image files. Disk2File is on the
Aminet FTP sites.
(Since the Amiga handles decoding in software, MFM, FM, GCR and any other
coding can be handled.)
-- Mark
PS: Does anyone have an Amiga 1020 floppy drive that they no longer need?
<>According to a friend who worked in Field Circus, if the systems were
<>inside DEC, that made it much MORE likely that they were entirely
<>non-standard configurations that bear no relationship to the label
<>on the outside of the box.
;) you betcha. Us mill rats were hacking things together that made the
the infernal field circus nuts.
I worked for CSSE, the Field Circus engineering arm. Our cave was
terminals and printers to year 0. However I was one of those that
scrounged whereever I was for systems and put together some creative
combinations that were not warmly recieved by the PDP-11 CSSE group we
were colocated with. I can still hear Evans asking me how I got two
RL02s, 2 BA11 11/23s and RX02 in the same 40" rack then plugged a LN01
laser printer into it. He swore there was no compatable Qbus interface
for the laser printer till I showed him a LPV11 with a LPV180 cab kit!
There was the many examples of unsupported but works. Remnents of that
beast followed me around from '84 and still sits in my room in a different
rack.
Anywho, I've seen a lot of systems, the joke was missed on badge vs cpu
installed. Most if not all were never what the badge said they were.
If I wanted to be pendantic I do have the MicroPDP-11 handbooks. But like
I'd said and I think Tim said in the end it's the contents not the label
and whatever you do have, enjoy it. They are all in whatever current
incarnation may now be, good systems that meet the "Robust and mature
systems we know how to use." mantra.
Allison
>> Unless there was an upgrade option for the VT52 I don't know about, the
>> 'VT52' w/printer is actually designated the VT55.
>
>Not according to my docs (and the unit I have coupled up to my 11/45)
>
>The VT55 is a VT52 with a 'waveform generator' card. This is an option
>for plotting graphs, roughly compatible with the VT105. Basically, you
>can store 2 'heights' for each vertical dot-column on the screen, and
>either display a point at that height (for plotting mathematical
>functions) or all points below that height (for plotting barcharts). It
>gave a reasonable resolution for this, with very little memory.
>
>The electrolytic copier (wet paper printer) was an option for either the
>VT52 or the VT55 (and maybe other VT5x terminals). Most VT55s had it
>fitted. Most VT52s didn't. But all combinations were possible.
Thanks, I stand corrected. I guess I have just never seen a VT52 with the
copier, only VT55s. (Guess I had to be there... :-)
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
>That was the plan. I found that the 11/130 I have runs RT-11 quite
>nicely and it's the fastest of the tu58 based systems (uses an oddball
>parallel interface tu58).
And is that using the technique I developed for positioning files
on the TU58 to reduce latency on RT? I've had RT cold boot from TU58
in as little as 28 seconds...
>Think of it as more flexible... runnin for the door. ;)
Ahem...
>Seriously the hardware boys seemed to be just a touch off center for the
>realm. Even the VT180, a very good CPM engine design they left off
>two sided (rev-H has it but I've never seen a real one) and that crippled
>disk expansion to the denser two sided media.
Bounded System:
A system which would be usable if it could be expanded...
... but it can't because it's bounded.
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
In a message dated 9/25/99 12:31:58 AM Eastern Daylight Time,
jpero(a)cgocable.net writes:
> > In a message dated 9/24/99 11:00:12 PM Eastern Daylight Time,
> > lwalker(a)mail.interlog.com writes:
> >
> > >
> > > To my mind the PS/1's all had a 2xxx-xxx designation. I have a 2011
> > > which is a 286. The monitor unit contains the PSU. It also had a
built-
> in
> > > 2400 modem. The 2021 is virtually identical but IIRC had more memory.
> > > I also have a 2123 and a 2133 which were 386's.
> >
> > 2133 3x3 case
> > 2155 5x5 case (bigger)
> > 2168 tower unit
>
> What about 2144's?
2144 are IBM aptiva models. 4 slot/4 bays
> >
> > 2011 and 2121 used special monitor with computer's power supply in it.
> > 2123 used either a ps2 model 30 or mod 55sx low profile case.
> > interesting fact: some midrange 486 ps/1 models were netware certified!
> >
> Trivia:
>
> Most of these PS/1s, VPs and Aptivas (especially 386, 486 and
> pentiums that used slot tree card and in tower cases with
> daughterslot board off the motherboard in H fashion.
> That said, this IBM interestingly used LPX factor form motherboards
> down to pinouts of the tree slot on board made by IBM or using
> non-ibm boards in their ibm-made cases.
>
> While on this thing, I'm looking for a used or busted PSU and tree
> slot board for my aptiva. Both parts are missing. The model is 2144
> type G-1 using intel board (Advanced/MN) that worked.
> Secondly, I have VP mod 638x series Type 1 motherboard (92F0388)
> needs writeback cache module 256K. Failing that, do anyone got a
> used either LPX factor form for pentium 60/66 or LPX pentium socket 7
> motherboard for sale? I do have the P5 66 cpu.
>
aptiva 2144-82p and 2144-86p were p60 models. probably wont have much luck
finding used parts on aptivas though although i did find a 2144-22p for $5
that works good. try www.direct.ibm.com that's IBM's parts counter.
> Would be wonderful for yours to shake down your friend network on
> this leads.
>
