On Jul 19, 12:08, Jarkko Teppo wrote:
> Well, NeXT did a few things against unix traditions, NI didn't
> probably work out well
:-)
> but objc, developing environment and the
> windowing system certainly did. One really has to try those to see
> how badly X11 sucks.
I've heard good things about the development environment. I'm not overly
impressed with the window manager, but I've seen much worse. And I can
think of a few shortcomings of X11 (colour [mis]management for one)
> If you end up with a corrupted NI db (badly corrupted) you can reset all
> the NI information by booting single-user and
>
> cp -r /usr/template/client/etc/hostconfig /etc
> cp -r /usr/template/client/etc/netinfo /etc/netinfo
I did almost exactly that after poking about last week. Nice to know it
was the right guess!
--
Pete Peter Turnbull
Network Manager
University of York
Hello Everyone,
I have more free stuff here in Michigan, plus some that I didn't get rid
of last time. As of now, everything that I have promised people has
been shipped. If I promised you something and you haven't been told a
shipping cost and that it is on its way, please email me. I did have
one guy that I couldn't seem to get an email through to.
I am advertising these items as free, but I ask that you would reimburse
me for shipping. Also please reply off list, as this will be going out
to 2 or 3 lists. This stuff probably won't interest Rescue very much,
but I figured it couldn't hurt to send it anyway.
-NEC IDE cd-rom model CDR-272 (4X, I think)
-generic serial mouse (9pin)
-paperwork for old Hercules Graphics Plus... looks brand new, has floppy
disk too. I bought what was supposed to be the Hercules card on Ebay,
turned out someone had simply stuck there old card in the Hercules box.
Maybe someone with the card might want the manuals?
-Sled for Optical drive for IBM 3510 external case, brand new
-sound card/modem from Packard Bell computer. I don't know how fast the
modem is, but I thought Linux or maybe even Win95 might detect the sound
card chip set. Could be a real cheap way to add sound to your
computer. I see Aztech and Crystal chips, if that means anything.
-Teac 1.2 meg floppy drive, model FD-55GFR, These drives are great if
you need to read and write to 360K floppies. I haven't had too much
trouble doing that, and I have always attributed it to the quality of
the Teac drives I use.
-GraphiCard by Practical Peripherals for the Apple // series. I think
it is some sort of parallel card. no documentation or cables, just the
card.
-3.5" 1.44meg floppy by Panasonic (white face, but whole thing could use
a cleaning)
-Astec PS/2 power supply, 150 watts, This is out of a Packard Bell, but
the only thing I have heard these referred to is PS/2 style. I don't
know why, as I have never seen real PS/2 use a power supply like this.
It has a remote power switch and 4 drive power leads. Looks pretty
standard for a newer, but not ATX, clone box.
-white power cord
-2 IDE cables, 40 pin, one long, one short, pretty generic
-floppy cable, controller end is a header type connector as is the last
floppy connector. The middle connector is the edge type.
-AC adapter for US Robotics Courier modem, output is 20 volts!
-external 3.5" drive for Apple //gs or I think Mac. Model# A9M0106
It's clean but a little beat up.
-Digital (Yes, as in DEC) "Full Video Elite" 16-bit ISA card for Mpeg
Playback practically new, in the original box has all software, manuals,
etc. I bought this at a computer show when it was already "obsolete".
I tried it out on my hoped up 386, but decided I didn't really want it.
It tried about 3 times to sell it on Ebay, but nobody would bid. Then
all of a sudden I saw a flood of them on Ebay going for next to nothing
if at all. I'm just tired of it sitting around! While using it I did
notice some interference in the video, I think the pass-through cable
may need shielding or something.
-black power cable
-baby AT 286 motherboard, has Harris 20mhz chip, uses 30-pin simms, have
4megs installed, 8 ISA slots, AMI bios, PC Chips chip set, will include
extra simms but am unsure of condition of extras. Board has never been
installed, but I did test it before putting it on Ebay. Didn't sell
obviously. I thought about making a little system out of it to use as a
terminal for my MicroVax 3400, but decided I don't need another PC.
-IBM serial/parallel board from IBM AT, uses 16450N uart chip, 8-bit
ISA. This isn't a cheap generic board. It's real IBM hardware.
-some sort of IBM memory board, has serial and parallel ports, 16-bit
ISA, uses 30-pin simms. I never got it to work, I don't know exactly
what kind of simms it uses either. I stuck some simms from a PS/2 Model
60 in it. It might need software too. Real IBM not generic
-full height face plate for Seagate ST-225, I think
-5.25" DD floppies, almost new or new. Not sure how many I'll let go,
maybe 20 to 25.
-springy contacts from the back of an Apple //e case, not sure exactly
which case... they changed it over the years. It's 10.75 inches long,
if that helps.
-Microchannel MFM drive controller FRU 6127874B, I think it's the older
one. It's from a Model 60
-Microchannel Adaptec 1640, I think this one is fried, I couldn't get it
to work, but maybe you want the slot cover or bios chips?
-SMC Microchannel Arcnet card
-Arco Electronics Microchannel IDE card
-2 Suncom Microchannel game cards. I bought these through Ebay, NIB.
They don't seem to work with my Reply Corporation Planer, However. They
don't use an ADF file either.
-Seagate Cabo ST3541A (CFS541A) It's IDE, but some IDE controllers
won't see it... don't know why. 540megs
-2 Miniscribe Model 8425F RLL I believe.
-uSpeed Fast88, I guess this is an accelerator of some sort for an 8088
system. I got it with a clone PC or XT system. Plugs into MB in relay
socket.
-STB video card, MVP2X, dual head card, Tseng Labs chip sets, 16-bit ISA
-ISA IDE and I/O card, almost new, I bought it from Walmart for my first
CD-ROM (32x, to give you an idea of it's age). It's in the box and has
the instructions, 16-bit ISA.
-3 Winchester drive controllers, RLL I think. 2 have floppy ports that
can't be disabled, one has no floppy port. Neat cards, I have one in my
socket 7 system because I blew the MB floppy controller out :-) 16-bit
ISA, and I have an instruction sheet I can make copies of.
-Still have the TIPC (Texas Instruments Professional Computer) No
monitor, keyboard, or OS.
-IBM PS/2 Model 9577, probably about 24megs of ram, 400meg HD, XGA2
card, both floppies, clean.
-Adaptec 2742W EISA wide SCSI card, but has no slot cover. I bought a
generic one, but it didn't have the hole in the correct spot. I have
heard it isn't to hard to make one using a drill press and a file, with
a blank cover.
Please help me clean up my apartment :-)
Chad Fernandez
Michigan, USA
Zane wrote:
>There are MP3 players for 68k Amiga's?!?! That's either rather gutsy, or
>pathetic, I'm not sure which. What do they do, decode them to another
>format and then play them?
There is an MP3 player for 68k NeXTs. See
http://www.wizards.de/~frank/download.html
to get it. The blurb says it runs realtime on Turbo, and 22kHz play
on 25 MHz systems.
- Mark
- Mark
>How can I write a zero-byte program? How does NAV identify this virus if
>it's zero bytes in length? What real threat to my PC is an
e-mail-propagated
>virus of length zero?
Sounds like it patches an existing file. One method of checking for a virus
is to scan files for a tell-tale set of bytes, I would guess that's how NAV
found this one. I just did a Google search for "Magistr" - a whole load of
sites all say the same thing - a month after infection the virus kicks in
and nobbles hard disk sectors, then has a go at the BIOS too. It doesn't
sound like it's that easy to fix :-(
Moral 1: never open an attachment from anyone unless you've confirmed in
advance what it is. It's not enough to say "never open attachments from
people you don't know" because most of these mail virii are spread by using
people's Outlook Address Books... if you're unlucky enough to have a mate
who's got you in his address book and s/he opens a virus attachment you're
going to get the virus delivered from a friendly source...
I used to get some stick from the lads when we go out for beers for never
opening the joke GIFs they mail me - one day I wrote a bit of VBA in a
Word document and sent it to them - all it did was list the contents of C:\
into the document in the same style as the DIR command, then pop up a dialog
saying "Do you want to delete these files?" with only a "Yes" button and the
"X" box system button. Either way once the dialog was closed it then put up
another dialog saying "Thanks for playing" at the same time as deleting each
line in the document (not the actual files, of course!), one a second. The
utter panic this caused amongst 4 supposedly experienced programmers was a
revelation - 4 "what the **** was that?" phonecalls later was enough to
convince me that
a) never trust your mates emails, it might not be from them
b) don't believe your eyes - Word isn't completely WYSIWYG, thankfully :-)
Moral 2: use alternatives to Microsoft, they've lost the plot - as if I
needed to say that on this list :-)
Moral 3: just because it's technically possible doesn't mean it's
particularly desirable. What possible justification can they have for
including a programming language in a word processor? What did Chuck Thacker
call it? Biggerism?
On topic: once I've fixed the PERQ's monitor I'll be hacking clones of elm
and lynx together. I'd like to see anyone infect that machine :-)
-- al
On Jul 19, 8:52, Jarkko Teppo wrote:
[ NeXT documentation ]
> If you install the whole shebang (at least on 3.3) you get the
documentation
> library in (I don't remember) /NextLibrary/something. It doesn't matter
> because the bookshelf-files are in /NextLibrary/BookShelves/. Just double
> click on SysAdmin.bshlf.
Thanks, I'll look tonight.
> > > Man-pages on niload and nidump might help too. Honestly, I never
> > remember
> > > how to do it so I just improvise and create a local NI hierarchy and
> > > use DNS for name resolution.
> >
> > I read them, and realised they didn't tell me enough, mainly because I
> > don't understand the rest of it.
>
> niload is just a helper for loading text-based configuration files into
> the NetInfo DB. nidump does the same in reverse.
I got that far from the man pages, but I need to know which files they
handle and what to turn them into for a single NeXT (in a sea of UNIX
varieties).
> Misc. link:
> http://enterprise.apple.com/NeXTanswers/HTMLFiles/1060.htmld/1060.html
That looks useful. Thanks!
> > No, NIS is *never* an option ;-)
>
> Heh :) I'm sometimes ready to put NI into same category but that's
> probably just because I have one (or two, if you count white boxes)
> NeXT(s). NI would probably kick ass in an installation with something
> like 100 machines.
Except that it breaks one of the golden UNIX rules; keep the config
information human-readable.
> I must admit that NetInfo can be quite confusing and I can screw up a
> machine pretty easily with it.
I did that too :-) By following the obvious option in the setup and
telling the machine it should use the network. I didn't realise what I was
telling it to use the network *for* :-)
--
Pete Peter Turnbull
Network Manager
University of York
> From the UK (ParcelForce):
I wouldn't use Parcel Force personally. Much better to use Amtrak, UPS,
FedEx, anyone ...! They regularly dump stuff on my doorstep without waiting
to see if anyone's in... doesn't matter if it's raining either (it often
is!) }:-|
I gave up complaining about it ages ago, and now just ask people to use
Amtrak instead if possible.
If Parcel Farce can't deliver something from Bristol to Bath without it
getting damaged there's not much hope of them getting it across the
Atlantic... use somebody else and do yourself a favour :-)
-- al
> > Ethan-
> >
> > Are you telling me you came down here to Louisville, KY and
> > grabbed a PDP-8 right out from underneath my nose?
>
> In 1986, yes, 3rd-party cabinet and all.
Oh. Well, ok, in 1986, my consciousness hadn't risen the level
it's on today.
> > Way to go, dude! But let me have the next one, OK?
>
> NP
Que?
Yes, but contiguous 0's are special and easy enough
to detect, and, it would not be difficult for the assembler
to include some initialization code. In the end, this is a
difference in philosophy, asm vs. higher level languages.
You don't expect an assembler to optimize that sort of thing,
but rather, to do exactly as it is told.
Now, I remember when g77 would actually include the
image of a zero-initialized array within a common block
in the executable.... at one point I had a 130MB
executable :-) . This is the opposite case, a high-level
language not optimizing that sort of thing.
Carlos.
At 06:37 PM 7/18/01 -0700, you wrote:
>On Wed, 18 Jul 2001, Sean 'Captain Napalm' Conner wrote:
>> some_buffer db 4096 dup(0)
>> end segment
>
>That EXPLICITLY calls for 4K of 0's.
>Virtually no assembler is clever enough to do a run-length compression.
>OTOH, If you wrote
> some_buffer db 4096 dup (?)
>it would set up 4K of "UNINITIALIZED" space, which it COULD compress out
>of the file, particularly if it is at the end.
>
>> . . . So it would be easy enough for a virus to scan the
>> executable for a portion that is nothing but zeros, and hide in there.
>It could always make space within the MICROS~1 copyright message.
>
>--
>Grumpy Ol' Fred cisin(a)xenosoft.com
>
>
--------------------------------------------------------------
Carlos E. Murillo-Sanchez carlos_murillo(a)nospammers.ieee.org
Today I have received a hint that there is a Superbrain
available for the right price and another mentioning an
altair, with modem and manuals.
I've seen Altairs on E-bay but not a superbrain, what would
be fair offers for these?
Also, does anyone know of newer kits similar to the altair
or mark-8. I found 1 advertised as a computer kit and it
consisted of a mother board, video card, drives, PS and case
and you put them together.
On July 18, Richard Erlacher wrote:
> For about a year there was one sitting in the back room (surplus) at the Denver
> Gateway Electronics store, overpriced at $40.
Overpriced at $40? I had two, sold one on eBay for $200.00 a
year or so ago. I'd pay $40 for one quite readily even if they didn't
have such a high resale value...they're just *cool*. :-)
> They show up from time to time. There's a Heathkit Logic Analyzer there now,
> IIRC, not to mention an old HP model.
Really? What models might they be?
-Dave McGuire
OT, yes (maybe some virii are >10 years old??) but related to programming in
general. Plus, if no one on this list knows the answer, then there probably
*isn't* an answer ;>)
I received a virus in an e-mail attachment a few minutes ago. The sender is
a wholesale supplier I'm acquainted with. NAV spotted the
"W32.Magistr.corrupt" virus, could not repair the infected item, and asked
for permission to delete the item, which I granted.
I looked this virus up in the list of 50K+ virii that NAV currently claims to
cover. No information was available, except that this virus is rare, it
infects .exe files, and it is zero bytes in length.
Now, I've cranked out a couple of boatloads of code over the last 19 years,
and the smallest useful program I ever wrote was 3 bytes in length. It's
easy enough to create a zero byte file, but as far as I can tell such a file
can't *do* anything.
How can I write a zero-byte program? How does NAV identify this virus if
it's zero bytes in length? What real threat to my PC is an e-mail-propagated
virus of length zero?
WTF???
TIA,
Glen
0/0
>I would very much appreciate the help of a U.K. resident in
>calculating postage to ship an approx. fifteen pound box of
>manuals (and floppies) from England to the U.S. We need to
>do this without mortgaging the farm, so a slow boat across
>the pond is preferred. The originating location is:
The originating location is (I think) irrelevant
as long as it is within the UK mainland
(which yours is, unless Cheshire has been
badly flooded lately ...).
If noone else chips in first, I'll have a play on
the scales tomorrow. That would give a price
via Parcelforce (or whoever the Royal Mail
use). I don't have much experience with
shipping in either direction but I'll ask
to see if anyone in the office can find out
how DHL or UPS calculate their charges.
As a very rough estimate, work out how
much the reverse route (i.e. US->UK)
would set you back. I would be surprised
if there is more than a factor of two (but
I bet UK->US costs more !)
A 2kg manual cost about $20 US->UK
about a year ago.
Antonio
I sent Mark Gregory a large quantity of Amiga Worlds about a month ago and
he was to send me a Amiga 1200 for my collection.
No news I a long while. He also offered some books on here IIRC. Anybody
talked to this person recently?
Thanks
Claude
http://computer_collector.tripod.com
On July 18, Pete Turnbull wrote:
> > The chapter did mention NIS (yp) so that *might* be an option.
>
> No, NIS is *never* an option ;-)
BRAVO!!
-Dave McGuire
The above might be avaliable ( with some peripherals ) : it is worth saving ?
I could not find too much info in the net . Around 1980's I assume.
I don't even know if it is a mini or if it is microprocessr based...
Any comments ? ( BTW location Zurich, Switzerland )
Regards, Jos Dreesen
I have a lead on a DEC "Grey Wall" in NYC.
Contact me off list if you're interested.
There are about 20 vols on VMS and 8 vols on VAX-GKS.
The owners will likely toss in one or more vt320's too if you
want 'em. The owner has enough conscience not to just throw
stuff out; I got him to wait another week or three.
My cup runneth over.
John A.
On Jul 18, 13:24, r. 'bear' stricklin wrote:
> On Wed, 18 Jul 2001, Pete Turnbull wrote:
>
> > What's special about the RAM for a Sparcstation 5 ?
>
> They're 5 volt, buffered, parity DIMMs. The only popular system that used
> 5 volt buffered DIMMs were the old PowerMacs, which don't use parity.
>
> Even beyond that, there's something else about them. I tried using
> SPARCstation 5 DIMMs in my Apple Network Server (also wanting 5 volt
> buffered parity DIMMs) and the ANS completely refused to see them. That
> was disappointing since SS5 RAM is infinitely more abundant, but oh well.
> I haven't tried the reverse test yet (whether ANS RAM will work in the
> SS5).
Ah, I see. I had assumed they were SIMMS, but I'd never opened up a SS5.
How many pins on the DIMMs?
And I see there was some prolonged discussion about the right DIMMs to use
in Sunblades, on the Sun newsgroups recently. They seem to be a bit of a
minefield. I know the ones SGI use in, eg O2s, are "odd" as well.
--
Pete Peter Turnbull
Network Manager
University of York
{sorry for the delays in replying, but I only get the digest}
Ok... I broke out the meter, and did a few checks....
Tony Duell suggested:
>That's a nice, simple, circuit to start with. Carefully pull the
>connector off the base of the CRT and check the heater continuity. If it
>is a 7 pin CRT, it's a fair bet the heater pins are numbers 3 and 4.
Well, it was a 7-pin connector, and I put an ohmmeter across pins 3 and 4.
It measured 31.7 ohms. Is that reasonable?
Robert Feldman suggested:
>First thing to check is to make sure that you are getting +12V on contac1
14
>of the circuit board and pin 7 of the inline connector.
I am getting +12V at both of these points (And by the way, thanks for the
pinouts and other information!!)...
Also, I suspect what I am referring to as a composite video output may not
be that at all... It is an RCA jack that is attached to the front of the
case, and is located just to the right of the connector marked "Battery".
It has two wires attached, which go to a 2-pin plug on an "L" shaped circuit
board. The "L" shaped board also contains the Z-80, some 6116 chips, and
other stuff. It also contains the inline connector that Robert gave the
pinout for (and in fact, the 2-pin plug is in very close physical proximity
to the inline connector). I have seen several pictures of Osbornes, and now
that I review them, none have this connector. It does not seem to be a
hacked on modification, since the plug on the "L" shaped board was very
obviously factory done.
I will take Tony's advice and trace back to see if and where the 12V fails.
Thanks!
Rich B.
On Jul 17, 20:22, Richard Erlacher wrote:
> If the refresh memory is to support text and graphics, the pipeline must
be
> two-forked.
Not necessarily. In a BBC Micro, for example, the 6845 is essentially
generating a stream of pixel addresses, since what's stored in the screen
memory is the bitmap of the character, not the character code. That's how
you mix text and graphics on the same screen. When text is written to the
screen, the OS looks up the bitmap(s) of the character(s) and writes the
individual pixels to screen RAM.
--
Pete Peter Turnbull
Network Manager
University of York
On Jul 18, 0:45, Tony Duell wrote:
> > Yes, but the schmitt-triggered one has a different problem -- it's too
> > slow! It's a long time ago, and the articles and my notes are buried
near
>
> Right... It's generally recomend for BBC lightpens (See, for example,
> the Advanced User Guide page 369). Are you saying none of these designs
> work properly?
Well, mine ended up having more in it than the one on p.369 (which has just
a Sweet Spot phototransistor mounted in the barrel) - it had a transistor
and bias resistor in there too, along with a CMOS chip to make a
touch-sensitive switch. I can't remember what the Sweet Spot part number
in the AUG is (schmitt or plain) so I can't tell you if that's the one I
used.
--
Pete Peter Turnbull
Network Manager
University of York
Saw this movie last night, and personally I found the use of "real" jargon
to describe what they were doing jarring because it didn't work right. Much
better to have the 'trek like' mishmash of terms that don't make any sense
but sound good.
The "mega system" that was supposed to be the wet dream of hackers
everywhere was this thing with about 8 LCD screens set up in some sort of
technotica holding unit. I thought about this and decided it doesn't work
on a number of levels, not the least of which is that you can't read stuff
on the top displays and you cant use them in parallel. Much cleaner to
build somthing like a jumbotron with 9 screens to give you a 56" monitor
with effectively 4K x 3K resolution. Then you could move things around and
even if they spanned monitors they would be readable.
In terms of classic hardware the multiheaded-ness of my SPARCStation was
useful in that regard, and I do this on my laptop as well (when its
docked). Clearly the BLIT kind of had the idea (Bell Labs Intelligent
Terminal) and the VT340 is nice (like the VT420) in that you can swap
screens easily. I _really_ like the idea of the VT525 on a big screen. I'm
definitely going to have to try that.
There was also an early hack done on Amigas that slaved three of them
running 'Jet' to give you three views and thus a wraparound screen effect.
So what is the ideal visual machine? Opinions?
--Chuck
On Jul 17, 16:54, Richard Erlacher wrote:
> Viewed from the 6845, is the block 1 scan line high?
Yes.
> Getting the horizontal location right, as you'd have to in order to do
precise
> drawing, might be a bit more complicated, don't you think? an 8-pixel
extent of
> uncertainty is quite a bit on a 640-pixel display.
But it's usually less than 8 bits. For example, the pen I built (which had
assorted other problems as per my other responses) was mostly used on a
4-bit-per-pixel display (16 colours) or a 2bpp (4 colour) display, so the
resolution was usually 2 pixels or, at worst, 4.
--
Pete Peter Turnbull
Network Manager
University of York
Hi all,
(And Tony Duell :^)
Repost of a previous msg, as for some wierd reason, I stopped getting
list
traffic for a couple of days.
Investigations at our mail server are inconclusive, but it may be
related to the fact we were using the ORBS database to aid spam control
and this has been
suddenly shut down. Or not.
Anyway, I've missed a couple days traffic and probably some responses to
this.
Have a friends Decstation 5000 power supply with a violently blown fuse.
(8A/250V)
He is a developer of VMS Freeware (in fact the WASD web server) and has
asked me to help.
Culprit is 2 x ZNR 14K241U devices, which I believe are Metal Film
Varistors Surge Absorbers.
The numbering system seems to be obsolete as current ZNR Surge Absorbers
use a quite different system, or I've guessed wrong and they are
something else entirely, but I don't think so.
These two gadgets are wired in series with each other, then connected
across the output of the mains rectifier.
240vac in, so they are across around 300+ vdc.
I could just leave them out and the supply will run, but would much
rather replace them to keep the protection they offer.
Their appear to be no other faults and the history of the incident is
consistent with a switch on surge after an extended holiday (3 weeks)
following daily useage of the machine, so it's possible the reservoir
caps may be just a little leaky or the varistor was just getting tired.
Anyone make sense of the device id so I can figure out what rating to
replace them with.
Device looks rather like a round ceramic capacitor, but gloss black in
colour, marked with white lettering
A Logo consisting of a small square box in top left with a capital M
inside and ZNR in caps next to it
then under it is 14K241U (or the 1's could be ell or i, hard to say).
underneath at bottom left is an reversed italic capital R with a
reversed italic capital L joined to the back main bar of the R.
To the right of this is a small letter s raised above the baseline with
the number 20 after it.
Any help appreciated.
Cheers
Geoff in Oz
> Me, too. My furthest haul was Columbus to Louisville for a PDP-8/L with
> high-speed punch/reader, ASR-33 and BM-08. It's what I show
> off to visitors.
Ethan-
Are you telling me you came down here to Louisville, KY and
grabbed a PDP-8 right out from underneath my nose?
Way to go, dude! But let me have the next one, OK?
;-)
-dq
On Jul 17, 22:12, James L. Rice wrote:
> Thanks to eBay and a couple of list members, I now have my Indy up and
> running and on the 'net using my ISDN router as the gateway. I can also
> ping my office network through the other router. I'm currently running
> IRIX 6.5. It has a R4400SC 150mhz cpu, 192mb ram, a 24bit graphics
> card, Granite kb, mouse and 20" Trinitron monitor, a 2gb hard drive and
> an Indycam. I'm building an external SCSI box to house a DAT drive, the
> CD-ROM, a CD-R drive and a 2gb option drive. Now I need to find a
> Presenter, a Cosmo board, a 10/100 GIO ethernet card, the XZ graphics
> board and floptical drive to have a fairly complete system.
Good luck finding a Presenter and 10/100 GIO at reasonable prices!
> It looks
> good sitting on my desk next to the NeXT TC slab.
On the subject of NeXTs, how do you get a NeXT to use standard files
(/etc/hosts, et al) instead of the netinfo stuff?
--
Pete Peter Turnbull
Network Manager
University of York
Does anyone know the part number for the KDA50 distribution
panel that mounts on the S-box (the one that is a two-wide
or three-wide cover plate) with the four SDI sockets? Does
anyone have a spare they'd sell? I lucked into a set of
four RA73 drives in the cage with the cable.
--
Eric Dittman
dittman(a)dittman.net
I saw an odd-looking Storageworks shelf on eBay. The
opening bid was $19.95, so I figured why not give it
a try and see. The auction closed without any other
bids, so I got the box. After it arrived I took it
apart to see what I could find. It turns out this is
an engineering evaluation shelf for the the next
generation Storageworks product. The design was
cancelled when Compaq bought Digital and they went
with a completely new design (the "universal" shelf).
This shelf is a copper FC storage cabinet with room
for eight FC drives. There's a controller unit and
two 8x4 FC switches. I'm now in the process of getting
an FC controller. This should be interesting.
--
Eric Dittman
dittman(a)dittman.net
Before I start, I suspect that I will catch some flak from some
list members over this. If that be the case, then so be it.
With that said, an earlier haul consisted of 115 NeXT machines, all
mono, with roughly 90 slabs and the rest cubes. Also included some
80 monitors, and about a dozen laser printers. And that of course
included keyboards, mice, cables, and boxes of other flotsam.
These were literally days away from being put in the dumpster, so it
was a big task just to rescue them before that happened. Then it took
weeks just to get a decent inventory. From that I realized it would
take months to test eveything. That made me realize that I am a
hobbyist and have no desire to become a NeXT dealer.
With the exception of a couple machines and some other stuff, I sent
the inventory list to Rob at Blackhole. The machines are now in his
capable hands.
Back on 7/9 and under the title "Attention NeXT Owners", I asked if
there were any list members in need of specific items to 'complete'
their machines. I held back enough to probably fill most of those
requests. After I have tested those items to make sure they work,
I will contact those who responded then. After that, I will make
available to the list anything that might still be available.
So under the heading "Recent addition", I can now say that I
have two complete working mono turbo slabs. Needless to say I
maxed them out with the largest hard drives and the most memory
I could find. It was not until I finished with the two machines
did I realize somthing. So I will ask:
Q: What is the the NeXT best thing to having a NeXT machine?
A: Having two NEXT machines & WITH consecutive serial numbers.
As I said, there are probably those that will give me some flak
for 'selling out'. The machines had to be rescued, but I had
no desire to test, pack, and ship that many machines. If you
want to give me hell, go ahead. I use to say that I considered
the day a total loss unless I caught hell from someone. The
line "Make My Day" comes to mind at this point.
On a good note. During my last phone call with Rob, he indicated
he was contemplating a mono slab special. He mentioned the price
of $99.
All of this was in a 10x20 rental storage locker. Although the
NeXT is gone (and I forgot to take pictures), there is still some
other machines there. I will probably post a list of that and
some other stuff shortly. Most of it will be free for the taking.
Mike
Well, I've done it again.
This time, I went all ~1400 miles to San Diego. I've been saving my money
for this one, and it paid off nicely. I picked up:
* PDP-11/20 -- According to the owner, this one worked last time it was
booted (no idea when that was), and I should expect the monitor to still
be loaded in the core.
* PDP-11/20 -- Not known to be in working condition. Missing a few
switches up front and maybe a few boards inside. Basicaly, a spares
machine. The faceplate is the older one that just says "PDP11" instead of
"PDP11/20", and I'll probably transplant it to the working machine for
that reason.
* PDP-11/05 chassis -- In great condition, but with no boards. Anybody
have a set up for trade?
* TU56 -- Looks to be in great condition.
* TC11 -- Looks to be in great condition.
* DECtapes -- About 100 of them. I think there's an operating system and
a fortran compiler in there somewhere.
* A few printsets.
I'd like to find a couple of RK05 drives, maybe a PCxx paper tape
reader/punch, and their controllers to round out this system. Anybody
have any of these up for trade?
Considering that all this was free to a good home and that it fit in the
back of the Suburban I borrowed from my parents, this has turned out to
the be least expensive haul this summer. All in all, I'd say that this
summer has been very successful.
--
Jeffrey S. Sharp
jss(a)ou.edu
On Jul 17, 20:47, Zane H. Healy wrote:
> Um, I hope you got RAM with those systems. If not unless they're 5/110's
or
> 5/170's you're probably better off sticking them on eBay and putting the
> money towards a Sparc 10 or 20. Simply put Sparc 5 RAM costs and arm and
a
> leg unless you get lucky! Only RAM I've found that's worse is
> AlphaStation 500/333 RAM (I've got both a Sparc 5/70, and a AS500/333).
What's special about the RAM for a Sparcstation 5 ?
--
Pete Peter Turnbull
Network Manager
University of York
Jeffrey S. Sharp WROTE:
> On Wed, 11 Jul 2001, Zane H. Healy wrote:
> > In some ways he should be paying you to remove the RA81's!
>
> They're *that* common?
Ticking time bomb. Someone decided to use
a(n allegedly) cheaper glue even though the
spec more or less said "do not substitute".
The result was that a fair number of RA81s
failed early in service.
They have a bad reputation.
Antonio
I found this on a web page from 1996.
http://www.3dsite.com/3dsite/cgi/publications/daily-spectrum/issue226.html#M
ountainGate
MountainGate will manufacture, market and distribute the RCI line of Video
Disk Recorders (VDR) and Real-time Disk Recorders (RDR) which provide
large-capacity uncompressed storage solutions.
Looks like MountainGate RDR is a real time video recorder.
Mike
mmcfadden(a)cmh.edu
Or you can sign up for DSL service, wait 5 months to get the line brought
into your house, during which time you have to be home for half a dozen
service calls, then the Telco will run the test and tell you that you are
too far away. That was my experience with Telocity and Ameritech in Chicago.
:(
-----Original Message-----
From: McFadden, Mike [mailto:mmcfadden@cmh.edu]
Sent: Thursday, July 12, 2001 3:53 PM
To: 'classiccmp(a)classiccmp.org'
Subject: RE: Plato terminal
I think you call up the telco and ask them the question and then they run
some test and report back to you.
>How do you find out the exact number of feet you're out from the CO?
>
>Peace.. Sridhar
Mike
mmcfadden(a)cmh.edu
This virus is about 30KB of _assembler_ code:
http://www.f-secure.com/v-descs/magistr.shtml
-----Original Message-----
From: Glenatacme(a)aol.com [mailto:Glenatacme@aol.com]
Sent: Tuesday, July 17, 2001 10:36 PM
To: classiccmp(a)classiccmp.org
Subject: OT: Virii
OT, yes (maybe some virii are >10 years old??) but related to programming in
general. Plus, if no one on this list knows the answer, then there probably
*isn't* an answer ;>)
I received a virus in an e-mail attachment a few minutes ago. The sender is
a wholesale supplier I'm acquainted with. NAV spotted the
"W32.Magistr.corrupt" virus, could not repair the infected item, and asked
for permission to delete the item, which I granted.
I looked this virus up in the list of 50K+ virii that NAV currently claims
to
cover. No information was available, except that this virus is rare, it
infects .exe files, and it is zero bytes in length.
Now, I've cranked out a couple of boatloads of code over the last 19 years,
and the smallest useful program I ever wrote was 3 bytes in length. It's
easy enough to create a zero byte file, but as far as I can tell such a file
can't *do* anything.
How can I write a zero-byte program? How does NAV identify this virus if
it's zero bytes in length? What real threat to my PC is an
e-mail-propagated
virus of length zero?
WTF???
TIA,
Glen
0/0
>Charles E. Fox wrote:
> I would very much like to get a copy of the Osborne
> 1 manual. I
> have been searching the web, but haven't located anything so
> far. If you
> want to scan yours and post it, you would be doing a great service.
Scanning is no problem - I can scan the
user guide (or whatever the correct title
is), always assuming the sheet feeder
does not eat the bog roll it seems
to be printed on :-)
I doubt I could post more than a CD
since previous experience leads me
to believe that the FS manual will
end up in the region of 50-100MB
and the UG could easily top 200MB.
I'll leave it up to some genereous
hoster to make them generally available
(and possibly split them up for
those with narrow straws between them
and the net).
I have other commitments that mean this
probably won't happen until mid-August.
Give or take six months :-)
Antonio
arcarlini(a)iee.org
Hello all,
To answer the replies so far....
1) There is a small black connector labeled "Do no remove when power is on"
or something to that effect. I does indeed cover a card-edge style
connector. I did remove it, power OFF, and I didn't recall it had anything
conductive inside. It just looked like a plastic plug. I'll have to look
again, when I go home this evening...
2) I did try the composite video output. Nothing there, either.
3) As I stated before, there was no light from the CRT at all, after taking
the cover off and powering up. I will perform the ohmmeter test suggested
by Dave McGuire tonight.
- As for the composite video connector... Does anyone know if there is any
magic keystroke or other setting to enable this? Perhaps if the internal
monitor is dead, I can still use an external one...
> Feldman, Robert wrote:
>
>I have an Osborne I Technical Reference manual, ut it is a bit
skimpy on the
>video (no circuit diagrams, for example). It does provide a pinout
for the
My Osborne came with a folder (hand-)labelled
"Field Service Manual" full of odds and ends
... including a bunch of schematics.
At least two of the schematics have traces
labelled VIDEO so I assume that for once
I'm lucky and I actually have a reasonable
amount of info about one of my machines :-)
I can scan the schematics assuming
a) someone wants them
and
b) someone has somewhere I can ftp them two.
Antonio
arcarlini(a)iee.org
On July 18, Mike Ford wrote:
> An electron microscope, or sad to say all the bits for one, just showed up
> at the UC Irvine (calif) salvage yard. What a mess.
Any vacuum pumps intact?
-Dave McGuire
Can someone tell me the specs on this 8" drive?
Magnetic Peripherals Inc. (a subsidiary of Control Data Corp., CDC)
Equipment Identification Number: BR8A5R
Part Number: 75744087
Series Code: 09
Ideally, I need to know what its equivalents are. I'm sure it's a pretty
standard DSDD 8" drive but I need to know for sure before I go off on a
wild goose chase.
Thanks!!
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
> Thanks to eBay and a couple of list members, I now have my Indy up and
> running and on the 'net using my ISDN router as the gateway. I can also
> ping my office network through the other router. I'm currently running
> IRIX 6.5. It has a R4400SC 150mhz cpu, 192mb ram, a 24bit graphics
> card, Granite kb, mouse and 20" Trinitron monitor, a 2gb hard drive and
> an Indycam. I'm building an external SCSI box to house a DAT drive, the
> CD-ROM, a CD-R drive and a 2gb option drive. Now I need to find a
> Presenter, a Cosmo board, a 10/100 GIO ethernet card, the XZ graphics
> board and floptical drive to have a fairly complete system. It looks
> good sitting on my desk next to the NeXT TC slab.
I'm more than a little green with envy!
> Now for my next project, to get the Sparc Station 5's I bought the other
> day up and running!
Um, I hope you got RAM with those systems. If not unless they're 5/110's or
5/170's you're probably better off sticking them on eBay and putting the
money towards a Sparc 10 or 20. Simply put Sparc 5 RAM costs and arm and a
leg unless you get lucky! Only RAM I've found that's worse is
AlphaStation 500/333 RAM (I've got both a Sparc 5/70, and a AS500/333).
Zane
A 11/780 and a Sun 3/470 up for grabs near Dallas.
Bill
----- Forwarded message from Roger Garcia <win2x(a)hotmail.com> -----
From: "Roger Garcia" <win2x(a)hotmail.com>
To: mrbill(a)decvax.org
Subject: Vax 11/780 - Sun 3/470 w/ Mass storage
Date: Mon, 16 Jul 2001 18:38:19 -0500
Bill,
Hello, I emailed you previously about a rescue for a Sun 3/470 w/ Mass
Storage. There is a Vax 11/780 in need of rescue in Richardson,Tx 75081.
Very large but could be a "vaxbar project for someone", I saw on ebay where
some boards from a 11/785 went for $100.00 we would like to recover some of
our costs for picking it up,if possible. I also still have the 3/470 with
mass storage unit still available. If you know anyone interested in these
units please have them email me for contact information.
Sincerely,
Roger Garcia
win2x inc.
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com
----- End forwarded message -----
--
Bill Bradford
mrbill(a)mrbill.net
Austin, TX
On Jul 18, 0:45, Tony Duell wrote:
> > Yes, but the schmitt-triggered one has a different problem -- it's too
> > slow! It's a long time ago, and the articles and my notes are buried
near
>
> Right... It's generally recomend for BBC lightpens (See, for example,
> the Advanced User Guide page 369). Are you saying none of these designs
> work properly?
Well, mine ended up having more in it than the one on p.369 (which has just
a Sweet Spot phototransistor mounted in the barrel) - it had a transistor
and bias resistor in there too, along with a CMOS chip to make a
touch-sensitive switch. I can't remember what the Sweet Spot part number
in the AUG is (schmitt or plain) so I can't tell you if that's the one I
used. I bought both types, and one other photodiode (or phototransistor?)
>from the RS cat.
I see that page also refers to a fudge factor to be subtracted from the
register contents -- I remember having to do that too.
--
Pete Peter Turnbull
Network Manager
University of York
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> Date: Mon, 2 Jul 2001 22:05:31 -0400
> From: "Curt Vendel" <curt(a)atari-history.com>
> Subject: PDF file of Canon CAT instructions....
>
> I know I'm a bit slow, but here is the link to the Adobe PDF file
> of the handwritten instructions for using the Canon CAT, enjoy.
>
> http://www.atari-history.com/archives/pdf/misc/canon_cat.pdf
Handwritten instructions for a word processor. Hmmm...
Paul R. Santa-Maria
Monroe, Michigan USA
I've been accumulating the damages from a recent thunderstorm. Wow!
Originally I thought
it was just a GFI breaker and the phones. But it turns out that a
computer got hit (just a PC),
and the cable box as well as a TV. I'm making a list (8 entries so far).
Thank God my bro-in-law
here in Maryland gave me a surge supressor that I put on my SWTPC. Makes
me think I need
more of those things.
Anyone else have such an event happen? Also, take this as a warning to
protect you most valuable
possessions. I intend to get a few more surge suppressors to protect
stuff. This is the one and only
time that this has happened to me, and I'm felling lucky.
Eric
Hi all.
I finally found some time to continue scanning doc.
So far I scanned (at 600 dpi) the following manuals.
Each chapter is a separate TIFF file.
- PDP-11/34 system user manual
- PDP-11/34 maintenance manual
- PDP-11/34A power system description
- KY11-LB SLU/RTC programmers console/interface
operation & maintenance manual
- DL11-W SLU/RTC operators manual
Also the following Field Maintenance Print Sets (FMPS)
and Engineering Drawings (ED) are scanned at 600 dpi.
They are broken into several parts, though the files
are still quite big.
- 11/03 Engineering Drawings
MP00049 & MP00050 KD11
MP00051 MMV11-A G653, H223
MP00052 EIS & FIS, backplane, power assy, H780
MP00055 DLV11
BA11-M, H9270-A, H780
- FMPS DD11-A
- ED DD11-D
- FMPS DRV11 MP00054 (M7941)
- FMPS LA38 MP00754
- FMPS LA8 MP00075
- FMPS LAX35-CL MP00714 (20 mA current loop), MP00738
- FMPS LAxx MP00248 serial interface
- FMPS MXV11-A MP00730 (M8047)
The list above is 300 Mb.
So still some 340 Mb to go to fill an other CD-ROM.
Next I will scan the 11/34 FP processor and the cache,
after that I will start on the 11/35 and core (MF11).
Anyway, is there interest in these high quality (I think)
scans?
happy holidays,
Henk.
Thanks to eBay and a couple of list members, I now have my Indy up and
running and on the 'net using my ISDN router as the gateway. I can also
ping my office network through the other router. I'm currently running
IRIX 6.5. It has a R4400SC 150mhz cpu, 192mb ram, a 24bit graphics
card, Granite kb, mouse and 20" Trinitron monitor, a 2gb hard drive and
an Indycam. I'm building an external SCSI box to house a DAT drive, the
CD-ROM, a CD-R drive and a 2gb option drive. Now I need to find a
Presenter, a Cosmo board, a 10/100 GIO ethernet card, the XZ graphics
board and floptical drive to have a fairly complete system. It looks
good sitting on my desk next to the NeXT TC slab.
Now for my next project, to get the Sparc Station 5's I bought the other
day up and running!
Just for everyone's information
About a year ago someone mention that DATA I/O had
taken down the all the files of family/pinout codes
for their old prom programmers. In response to a
recent request for information. I checked again and
it seems that most of them are back on their web site.
What I found by looking through the files:
Go to http://www.dataio.com/support/ftp.htm
This is DATA I/O's FTP site
Select "device lists"
Then select ",archive"
There is a file called "wallchrt.exe".
This is a self-extracting archive file. Run it in an empty directory.
After it has extracted it's files, click on "WC.BAT". Wallchart is a
menu driven DOS program that seems to have lists of supported devices
for most of their old programmers, along some "footnotes".
(w54_pgm.exe looks like it MAYBE a newer version of wallchrt.exe)
Family/pinout codes can be found in files like:
device lists\29_fpo.txt - 2900
device lists\,archive\s1000.txt - Series 1000
device lists\,archive\unipak.txt - Unipak
device lists\,archive\series22.txt - Series 22
device lists\,archive\logicpak.txt - Logicpak
etc.
Also look at
device lists\,archive\README
device lists\,archive\README old.html
device lists\,archive\README.html
for some more information on these files
Regards,
--Doug
=========================================
Doug Coward
@ home in Poulsbo, WA
Analog Computer Online Museum and History Center
http://www.best.com/~dcoward/analog
=========================================
> The problem was termination. I opened it up again today and
> sure enough, the previous owner had removed the terminating resistor
> packs from the mainboard. It worked fine like this under the 2.X
> ROMs but once the 3.1 ROMs went in it began having problems. Once I
Cool! How about letting us know what you think of Amiga OS 3.9 once you get
it loaded! I'm especially interested in the networking side of it. I don't
suppose you've got a graphics card or network card in the system?
Hmmm, I've now got some room under my main computer desk, so I could
potentially fit the A3000 I've got stuffed into a Tower case under there, or
de-tower it and set it up.
I'd like to get it back up and running, but the question always seems to be,
what am I going to do with it.
Zane
On Jul 17, 19:17, Tony Duell wrote:
> [Lightpen over dark screen]
> If that's the article I am thinking of, they made a mistake and suggested
> the device you needed was the plain phototransistor. The next month they
> publised a correction that said you needed the phototransistor + schmitt
> trigger Sweet-Spot.
Yes, but the schmitt-triggered one has a different problem -- it's too
slow! It's a long time ago, and the articles and my notes are buried near
the bottom of a heap of other stuff, but I seem to remember that the
frequency response of the schmitt device was quite low. I didn't use it in
the end; I built a custom amplifier with the front end in the pen tube.
> > brightness was set so that black was *just* not visible, a suitably
>
> Yes, but as you imply, that's not truely a dark screen :-)...
>
> > adjusted lightpen on a short-persistence monitor could detect dark
pixels.
> > It was, however, *much* easier with lit pixels.
>
> And the adjustments (monitor brightness, light pen sensitivity/threshold)
> are _very_ touchy!
Indeed. If you're not careful, the detector that can "see" the spot on a
"dark" screen gets dazzled by a lit pixel, or fooled if you tilt the pen so
ambient light leaks past the tip. I gave it up.
--
Pete Peter Turnbull
Network Manager
University of York
On Jul 16, 14:01, Sellam Ismail wrote:
> Ok, my mind is still blown. How does a light-pen drawing program work
> then? (Or is a light-pen drawing program not possible?)
It works by doing what Chuck described (flashing a frame or a line) or as
Megan described (using a target). I've seen it done both ways. I've never
seen a commercial lightpen do what I did, using the low light from "black"
(which isn't quite black) to trigger a sensitive detector -- a detector
that sensitive is just too prone to being swamped by ambient light, I
discovered. It was fine when the pen was pressed against the tube, but
goes haywire when lifted away. I fitted a touch switch to mine to prevent
that, but it still took the amplifier a moment to settle.
--
Pete Peter Turnbull
Network Manager
University of York
> From: jpero(a)sympatico.ca
> To: "Richard Erlacher" <edick(a)idcomm.com>
> Date: Tue, 17 Jul 2001 18:13:28 +0000
> MIME-Version: 1.0
> Content-type: text/plain; charset=US-ASCII
> Content-transfer-encoding: 7BIT
> Subject: Re: Apple II for into to microprocessors
> Priority: normal
> In-reply-to: <002601c10f0a$2e6efdc0$9cc762d8(a)idcomm.com>
> X-mailer: Pegasus Mail for Win32 (v2.54)
>
> > From: "Richard Erlacher" <edick(a)idcomm.com>
> > To: <classiccmp(a)classiccmp.org>
> > Subject: Re: Apple II for into to microprocessors
> > Date: Tue, 17 Jul 2001 15:47:41 -0600
> > Organization: Erlacher Associates
> > Reply-to: classiccmp(a)classiccmp.org
>
> BTW, I left a Quadra 650(?) costing $6.95 sitting there on account of this, not
> that I wanted it, but it might have had useable parts.
Dick,
7 dollars is worth getting that Mac for parts, 7 dollars plus
shipping on the parts stripped from that Mac is what I can use.
Quadra use full 68040, this 650 is blazing 33MHz.
Cheers,
Wizard
PS: your email address bounced so this email is in public for anyone
to see and I wish to contact you on this Quadra 650.
Hi,
I bought a VT420 from a neighborhood garage sale ($5) that
turned out not to work. Turn it on and I saw nothing happening.
Only heared a faint "fip ... fip ... fip ..." kind of sound,
you know that one "fip" when a screen comes on, just a little
softer and repeated about 1 per second and no screen came on.
Opened the box and powered on, the kathode in the tube didn't
seem to glow. More inspection turned out that what seems like
a ceramic capacitor was exploded or fried, all black and
crummy, impossible for me to identify its specs. Can someone
help me out with a schematics or databook or something?
Again the terminal is DEC VT420
the blown-up capacitor is C621.
What kind of collateral damage do I have to expect? I mean,
does a fried capacitor normaly cut short? Here are some
hints:
- That C621 is in close proximity to C617, another sizeable
capacitor. However there are no marks left on that one after
cleaning the explosion site :-)
- A diode D603 is also in that neighborhood, doesn't look
bad, but I didn't test it yet.
- I do see suspicious brown-coloration in an area farther off
around D607 and R649. I wouldn't be surprized if R649 was
fried.
- R650 is in next to R649 but looks fine to me, though I
didn't test it. It's always a problem to test components
while in the circuit, don't know what I should expect.
I appreciate any help.
thanks,
-Gunther
--
Gunther Schadow, M.D., Ph.D. gschadow(a)regenstrief.org
Medical Information Scientist Regenstrief Institute for Health Care
Adjunct Assistant Professor Indiana University School of Medicine
tel:1(317)630-7960 http://aurora.regenstrief.org
I have an Osborne I Technical Reference manual, ut it is a bit skimpy on the
video (no circuit diagrams, for example). It does provide a pinout for the
video connector. The signals come from the bottom and the shunt carries them
to the top, where they go to a single inline connector that connects to the
monitor. Looking at the edge connector from the front (numbered right to
left, odd on top, even on the bottom), the signals are:
2 Ground
4 Brightness High
6 Brightness Low
8 Brightness Arm
10 Ground
12 Horizontal sync
14 +12V
16 Video out
18 Vertical sync
20 Ground
The shunt just connects the top contact to its mate on the bottom: 1 to 2, 3
to 4, etc.
The inline connector pinout is
1 Horizontal Ground
2 Brightness High
3 Brightness Low
4 Brightness Arm
5 Ground
6 Horizontal sync
7 +12V
8 Video out
9 Vertical sync
10 Video Ground
First thing to check is to make sure that you are getting +12V on contac1 14
of the circuit board and pin 7 of the inline connector.
The Brightness High, low and arm go to a 100K pot (arm to the wiper). Line 8
(video goes to a 500K pot connected to 10 (video ground).
The manual notes: "Warning: The video connectors contain TTL-level signals
along with +12 Volts, and are quite vulnerable to damage by accidental
misconnections."
As to the RCA socket, I had a Tan case Osborne I, and I do not remember that
it had a composite video connector. You needed an adaptor (about
1.5"x1.5"x0.75" that plugged on the edge connector in place of the shunt.
One brand was Exmon (sp?), as another poster mentioned. I saw something that
looked like one at a surplus electronics website a few months ago. I don't
recall which, but I will try to find it again.
You should see the big Osborne "O" logo and ROM version info when you turn
the computer on. There was no special keystroke combination to switch to
external monitor. I forget what the 52/80/102 character display switch was,
but I think that was through software. The higher video resolutions required
a daughter board, which was a later addition on my tan-case O1.
-----Original Message-----
From: Rich Beaudry [mailto:r_beaudry@hotmail.com]
Sent: Tuesday, July 17, 2001 7:59 AM
To: classiccmp(a)classiccmp.org
Subject: RE: Osborne One -- No video.
Hello all,
To answer the replies so far....
1) There is a small black connector labeled "Do no remove when power is on"
or something to that effect. I does indeed cover a card-edge style
connector. I did remove it, power OFF, and I didn't recall it had anything
conductive inside. It just looked like a plastic plug. I'll have to look
again, when I go home this evening...
2) I did try the composite video output. Nothing there, either.
3) As I stated before, there was no light from the CRT at all, after taking
the cover off and powering up. I will perform the ohmmeter test suggested
by Dave McGuire tonight.
- As for the composite video connector... Does anyone know if there is any
magic keystroke or other setting to enable this? Perhaps if the internal
monitor is dead, I can still use an external one...
Hi. I'm not sure if it's ten years old yet, but here goes. I was
wondering if it were possible to upgrade my Macintosh Quadra 800 to 68060?
What are my options? I really don't want to go PowerPC.
Peace... Sridhar
I have the opportunity to pick up a Kennedy
9100 tape drive -- a vac column start/stop drive.
(No, I don't NEED another tape drive, but.)
Condition unknown.
This is definitely not a Pertec-interface drive.
Has two what looked like 36-conductor edge
connectors, plus or minus. Not 50.
Stuff I was able to find online said it emulates the
TE-10 drive and uses a TC-11 Unibus controller.
Is that correct? Are Unibus controllers plentiful?
Does anyone know if there is a q-bus interface for
this drive? If so, is it reasonably available?
Could you cc me directly in any replies
(brian(a)quarterbyte.com) if you know, as I will
have to decide whether or not to take this before
I'll see the digest. Thanks so much,
Brian
> Kevin Murrell wrote:
>
>Parcelforce using airmail from the UK to the US is very quick -
nearly
>always less than one week. The cheaper alternative has taken over
7 weeks
>the last two times I have used it.
>1.0Kg Datapost 32.85 Standard 15.60 Economy 13.20
>8.0Kg 69.10 55.75 38.15
>Economy up to 20 days UK to US (I suspect a lot longer!)
Given that the estimate is 15lbs, it might
come in under 8kg. A six week slow boat
saves 30UKP (about 45USD).
I was willing to wait when my manual
was shipped .... and it did indeed take
the whole of the estimated six weeks!
I suppose it depends how desperate you
are to get the manuals and disks!
Antonio
Richard,
Forgot about that transformer....
I removed two of the three fuses that feed power to the other phases of the
transformer and checked the voltage of the power supply that operates the
interlock system and also monitored the temperature of the components on
the board as well as the transformer.
After running it for about an hour with the main relay pulled in, it seemed
that the transformer and power supply were handling the single phase feed okay.
For everyone on the list: please keep in mind that these checks were not
comprehensive and were just a simple test to see if a easy conversion from
phase to single phase could be made with no internal modifications to the
VAX. I intend to make a conversion box that the stock power plug mates
with, with integral voltage and ammeters in the box to monitor the power
supply to the VAX.
If these conversions are successful, I'll make my notes, observations, and
schematics available to all.
I can't wait to get it all running....... : )
- Matt
At 12:52 PM 7/17/01 -0500, you wrote:
>On Tue, 17 Jul 2001, Matthew Sell wrote:
>
> > As far as power goes for the 11/780, it looks like it may be possible to
> > feed one with standard 115V, with three separate feeds.
>
>Yes it is, with one exception that I think you've found, from your
>description. There is a 3-phase transformer and power supply that runs
>the power distribution box relays and such. But the actual meat of the
>thing is run off 115 (all phase-to-neutral when run on 120/208 Y). I was
>planning to run mine from split-phase residential 240v, with maybe 4
>supplies on one side, 2 on the other, and the Unibus expansion cabinet and
>some drives on the side with 2.
>
>Good luck in getting it running.
>
>Richard Schauer
>rws(a)enteract.com
"One World, One Web, One Program" - Microsoft Promotional Ad
"Ein Volk, Ein Reich, Ein Fuhrer" - Adolf Hitler
Many thanks for this tagline to a fellow RGVAC'er...
I'm trying to find some information on configuring pathways tcpip for my vaxserver. Might anyone out there be able to help me?
Cheers,
Chris
---
I for one, was glad when Congressman John Glenn went back into space. I was a bit disappointed when he returned, however.
Get 250 color business cards for FREE!
http://businesscards.lycos.com/vp/fastpath/
On Jul 16, 18:39, Tony Duell wrote:
> > So here's a trick question .. what happens when a person holds
> > a lightpen to a dark section of the screen. Is the lightpen
>
> Nothing happens (literally). The light pen never sees any light, so it
> can't send a signal to the video card, so the CRT controller can never
> report the position.
>
> > completely blind unless come pixel is lit up?
>
> Yes.
That's not necessarily *quite* true. I built a lightpen for my Beeb years
and years ago, based on an article in a magazine. It used one of the RS
"Sweet Spot" devices and at first I had some trouble making it work. The
following month the magazine published a followup indicating that not all
Sweet Spot devices worked, and suggesting alternatives, but by then I'd
figured out that there was a speed-of-response problem and also a
sensitivity issue and had played with other detectors. I found that if the
brightness was set so that black was *just* not visible, a suitably
adjusted lightpen on a short-persistence monitor could detect dark pixels.
It was, however, *much* easier with lit pixels.
--
Pete Peter Turnbull
Network Manager
University of York
On Jul 16, 18:35, Tony Duell wrote:
> > Yes, I they do (mine has it, and it's shown on all the diagrams) and
now
> > you mention it, it sounds familiar. Or more accurately, I remember
seeing
> > soething about converting US machines back to UK spec (or UK-usable
spec,
>
> Preumably that involves moving the link, replacing the colour subcarrier
> crystal amd replacing the BASIC (and MOS?) ROM?
Yes, and changing the link in the PSU.
> > at least). One Acorn dealer re-imported a lot of unsold US and German
> > Beebs some years ago.
>
> What's a German Beeb? Does it have the QWERTZ keyboard layout and German
> messages in the ROM ? Is that the only difference?
I never actually saw one, but as far as I know, the differences -- if any
-- were very small. I'm not even sure they translated all the messages.
There was a problem with selling Beebs in Germany -- the safety and
emissions regs were tighter at the time than in the UK, and at one point
Acorn wouldn't sanction sales to Germany.
> One thing to emphasise here is that the A and B machines both used the
> same PCB, so upgrading was a matter of adding the extra chips and moving
> various links (for example to enable the ROM select circuitry rather than
> always having the BASIC ROM selected).
Absolutely. And as you point out, you only had to add the things you
wanted, though if you added all the "missing" chips, sockets, and set the
links, there was no way to tell (other than the serial number) that the
machine had started as an "A".
> Real hackers just got the circuit diagram and went off to buy the chips
:-)
Yup. Which is how I discovered that Watfraud's "A to B Upgrade Kit" was
incomplete -- it looked cheaper than the sum of the parts, and when I
looked at the contents I realised why. They had started from the premise
of adding a printer, serial port, RAM, etc; and hadn't realised they needed
little things like the 74LS161 that latches the ROM bank select. I
suspect they'd never looked at the diagram and certainly not been on any of
the Acorn courses, but merely copied parts lists from some other vendors
individual upgrades.
> > Then came the B+. This looked similar from the outside, but had a
> > redesigned PCB with 64K of RAM, some of which was used to "shadow" the
>
> The circuitry was very different in some places, with more ULAs
> (Uncommitted Logic Array chips, basically mask-programmed ASICs). The
> original BBC micro had 2 ULAs, one for the serial/cassette ports
> (included the baud rate generator, cassette modulator/demodulator, etc)
> and one for video (colour lookup table, etc). The B+ had at least one for
> memory control as well.
Actually, that one is a PAL.
> I thought the B+ schematic showed an 8271 disk controller. Or are you
> saying that all B+'s shipped with a 1770 kludgeboard in them.
Not a board; the main PCB has places to fit either a 1770 or an 8271. Both
upgrades (you could buy a B+ without the interface) included a few extra
chips (buffers, etc) but there were a couple in the 8271 kit not required
in the 1770 kit (74LS123, IIRC, and I think one other). The service manual
lists the whys and wherefores; I'll dig it out if you're interested.
--
Pete Peter Turnbull
Network Manager
University of York
Hi. I seem to find this connector with 50 pins in three rows in a D-shell
on my VAXservers and VAXstations. I even have one or two on my DECsystem
5840. Could someone tell me what they are? Three rows. 17 - 16 - 17.
Peace... Sridhar
On Jul 16, 23:54, Rob Lion wrote:
> I recently acquired a MountainGate RDR storage system
> controller cards (I think, they are entirely unlabeled) -- the most
> prominent/relevant chips are 2x Western Digital WD33C93 and a TI
TMS320C25.
The WD33C93 is a SCSI controller, and the TMS320 family are DSPs (often
used as fast RISC processors). More than that, I don't know, I'm afraid.
--
Pete Peter Turnbull
Network Manager
University of York
Got video ram from a list member today, 44256-80's, and I now have 1mb video
on the builtin S3 card for my Dell 4066/XE server. If anyone has more on
it's way I can still use it as I have another Dell machine that also
upgrades the same way.
ok...i need to know if anyone has any twinaxial cable m/m and m/f about 6 feet long (the kind that would connect a monitor to an IBM Sys 36)
also i was curious if anyone had an EGA monitor or a VM-1 monitor
if anyone is willing to sell me any of these then please email me personally to let me know
thanks
Robert Cobbins
Greetings:
I would very much appreciate the help of a U.K. resident in
calculating postage to ship an approx. fifteen pound box of
manuals (and floppies) from England to the U.S. We need to
do this without mortgaging the farm, so a slow boat across
the pond is preferred. The originating location is:
Tushingham
Cheshire
SY13 4QR
and the destination is Duluth, MN, USA.
Please reply to <msg(a)cybertheque.org>
All help is _VERY_ much appreciated.
Michael Grigoni
Cybertheque Museum
> >By putting up some sort of target which does provide the light-pen
> >with a light signal. The target is designed in such a way that you
> >cannot move the pen without hitting some part of it, and the software
> >sees a light-pen hit and *re-centers* the target on that point,
> >effectively moving it to where the pen is now pointing.
>
> I think the technical term for that is a "cursor". :-)
There was an article in an early issue of Byte that described
how to build a lightpen and rudimentary code to drive it. I
believe it was for the Processor technology VDM-1 (and so you
could do it with a SOL too).
The full-matrix block cursor was just one of many characters
stored in the character generator chip. You'd have to calibrate
the pen interface so that only a cursor block would put out enough
light to trigger the interface to have a hit available. So you'd
write out a row of cursors, starting at the top row, looking for
a signal from the pen. Once you find the row, you'd repeat the
sequence colmun-by-column until you again got a hit. Now you
know the X,Y coordinates of then pen, and you can do whatever
you want at that point. Select the object under the pen, repeat
the depositing of some character sequence, etc.
To draw with this particular display, of course, you'd have to
draw using some pre-defined screen character as the "nib". I
never got that far- I build the pen, still have it, and I put
quite a bit of effort into re-writing the code, all on paper..
then I moved out, forgot it, and the girlfriend threw my code
away. but I digress...
-dq
hmm you said, that you admin a network with NMS9100 in it.
I have the same computer at home but its missing his BIOS Disk. Do you
have still one of these or know where to get it?
thanx,
Marek Czernohous
--
marek(a)czernohous.de
>Ok, my mind is still blown. How does a light-pen drawing program work
>then? (Or is a light-pen drawing program not possible?)
By putting up some sort of target which does provide the light-pen
with a light signal. The target is designed in such a way that you
cannot move the pen without hitting some part of it, and the software
sees a light-pen hit and *re-centers* the target on that point,
effectively moving it to where the pen is now pointing.
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 KB1FCA |
+--------------------------------+-------------------------------------+
Since at least discussing Supercomputers is on-topic, I guess we can
proceed...
It's an interesting sales point, but as those who are even more in the know
than I have said, a large cluster of computers is *not* a supercomputer;
there are (see comp.sys.super for more details) classes of problem that
each lends itself to, and that the other does not. But of course, any computer
can be used to do what any other computer can do, so it may be a moot point.
-dq
I recently acquired a MountainGate RDR storage system of some kind. I don't
know much about it or how it would be used, but the price was right...
Anyway, I was wondering if anyone knew anything about this sytem.
What I have are 3 large rackmount cases, Units 0, 1, and 2, each with an ISA
backplane and 8x Quantum Grand Prix 4.3GB drives.
Unit 0 is the controller, with a 486 SBC, 420MB boot drive, parallel/CGA?
card, and 10baseT ethernet. It also has a pair of "Acces I/O Products" model
LT2-AT cards, with 100-pin connectors on the back panel. It then has 4x RAID
controller cards (I think, they are entirely unlabeled) -- the most
prominent/relevant chips are 2x Western Digital WD33C93 and a TI TMS320C25.
Finally, there is some sort of master controller card that sasys
MountainGate on it, with a DB-37 connector on the back panel. The 5
controller cards are connected with a 50 pin ribbon cable bus, and the 4
drive controllers have a pair of 10 pin ribbon cables bussing them together,
one of which goes to a pair of DB9s on the back panel.
Unit 1 and Unit 2 are similarly configured, but with only the 4 drive
controllers and the master controller, and 1 LT2-AT each.
I have tried to power the whole system up, but the only CGA screen I have is
really flaky, so I can tell that _something's_ going on on the screen, but I
can't read it. Hopefully I'll be able to track down an ISA VGA video card
soon; I had one but loaned it to a friend.
If anyone knows anything about this system, please let me know.
Thanks a lot,
Rob Lion
Hi folks!
I'm a newbie - I just subscribed. ;-)
I'm having some difficulty with a SPARCstation LX I rescued from the
dumpster at work. It's got SunOS 4.1.3_UI installed on it, but it expects
to find a server on a network. I can boot to the "#" prompt with "boot -s"
but with autoboot the machine tries to find a server called "scanlab" on the
TPE. It reports le0: No Carrier... and retries ad infinity.
But what I really want to do is just install a fresh copy of Solaris 2.4.
I've got a CD marked "Solaris 2.4 Hardware: 11/94" but I don't know if it is
really the solaris install cd.
Also, when i boot from the cdrom ("boot cdrom"), the system starts loading
SunOS 5.4. But I get a warning immediately after the copyright appears.
"Data transfer overrun" and it prints out "current esp states:" and lists
several esp states.... (whatever those are)...
The LX reboots from the default boot directory.
I'm sorry that I'm such a newbie. This is my very first Sun machine and I'm
very excited about getting it up and running, but I know nthing about it :-(
I'm open to any suggestions that you folks might give me...
Here's my setup:
Sun SPARCstation LX, 48MB RAM, 450MB internal hd, external 411 hd (ID 1) -
not sure of the capacity but I think it's ~500MB, and a Matsushita (LaCie
rebranded) CD-R at ID 6.
Thanks for being patient with me!
Peace,
Drew
_________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
On July 16, R. D. Davis wrote:
> Out of curiosity, how many others here have Dynabyte systems or
> components? I've a Dynabyte 5100 system running MP/M, lots of serial
> ports, two 8" Shugart floppy drives and a 10" Micropolis (IIRC) hard
> drive.
*drool* I've wanted one for years...does that count? ;)
-Dave McGuire
> My wife has grumbled a bit about my collecting, esp.
> when I use the loft in our house as a staging area.
> Most of the stuff is either in the computer room or
> the garage, but nothing beats being able to spread
> a system out on the floor and coffee table to either
> repair or build the system.
Before I asked my wife to marry me, I gave her a tour of my storage units,
and the computers I had at my folks (especially the ones in the garage).
Plus I'm the one that came up with the rule that computers are only in the
computer room in our apartment. Although at times there are computers, or
computer related stuff in the entryway or hall.
> I've recently decided to limit myself to VAX, PDP-11,
> and Alpha systems. I'm going to be selling off my
> CP/M and TRS-80 collection (except for my Cyzern
> System 7000 and possibly my very rare Norcom clone).
> When I mentioned this to my wife, I was extremely
> surprised when she said I should keep the stuff!
>
> I guess that's one of the reasons I love her so
> much; she supports my computing habit (she even
> bought me my first Alpha).
In my case I'm trimming my collection down to being primarily DEC because
that's what I find myself the most interested in, and spending what time I
have for the hobby on.
The most shocking hobby/wife event happened about a month ago when she told
me that she really wanted to go big swap meet. It wasn't just me that left
with stuff either, she found about as much stuff to bring home as I did (it
just weighed less).
OTOH, a certain part of my interest in collecting classic computers has
shifted over to collecting old video game systems and games, as that's
something we can enjoy together. The scary thing with that is she's
encouraging me to get a Neo Geo arcade machine! Anyone know of any cheap
ones in the Portland, OR area?
Zane
I found some QBUS boards that I can't identify from the field
guide. The numbers are:
M8950
M8951
M8952
M8953
M8955
M8958
M8970
M8971
M8972
M8973
I believe some of them are parts of a tape controller, and
one of the boards had an i8085 along with some ROMs. There's
also a board with a bunch of ROMs that has the notation "8085
ROM BOARD".
I have no idea of the origin of the boards. I found them in
a cabinet while I was looking for some documentation.
--
Eric Dittman
dittman(a)dittman.net
I believe these are a board set from a TU78 or TA78 tape drive.
-Dave McGuire
On July 16, Eric Dittman wrote:
> I found some QBUS boards that I can't identify from the field
> guide. The numbers are:
>
> M8950
> M8951
> M8952
> M8953
> M8955
> M8958
> M8970
> M8971
> M8972
> M8973
>
> I believe some of them are parts of a tape controller, and
> one of the boards had an i8085 along with some ROMs. There's
> also a board with a bunch of ROMs that has the notation "8085
> ROM BOARD".
>
> I have no idea of the origin of the boards. I found them in
> a cabinet while I was looking for some documentation.
> --
> Eric Dittman
> dittman(a)dittman.net
At 09:44 PM 7/14/01 -0700, Fred Cisin (XenoSoft) wrote:
>When the computer hears from the lightpen that it sees the light, it knows
>(I promised over-simplification!) where the light is at that instant, and
>therefore, now knows where the lightpen is.
It's all about light detection and horizontal and vertical
scan timing. There were light pens for the Amiga that worked
at a distance and with projection televisions, for example.
The same principle is used in old console games for the
"gun" that knows what you're pointing at on-screen.
- John
> For Iggy or whoever else might know...
>
> Ok, after about 4 years, I now have another Amiga 3000.
> Cool! The only thing is, after I've popped a set of 3.1 ROMs into
> it, gotten new from Sotware Hut, it's having SCSI problems. It's
> giving data errors from the internal drive. I vaguely remember
> having the same problem with my other 3000 but do not remember the
> fix. Other than the ROMs, nothing else was changed. I plan on
> putting the 2.0 ROMs back in just to recheck everything. Anyone?
The first thought that comes to mind are you running with the newest
revision of the SCSI chip? I've got two A3000's, one is near pristine,
sitting in the box as a spare (got it from a guy locally who had taken
beautiful care of it and a A2000. The other is a *major* dog, BUT, I've
upgraded all the chips to the latest Rev, added a DIP to SIMM board with
16MB RAM, added a Picasso IV video board, 10Base2 Ethernet, and a Catweasel.
The only thing it needs is an accelerator and a way to add more RAM :^)
Downside being I've not used it in 2-3 years.
However, I've had major problems with the internal HD getting corrupted. In
my case thank goodness for having had a Exabyte 8500 hooked up to it. This
was with 3.1 ROMS and OS. I've never run any other version on it except for
the few days it took to get 3.1 from Softhut.
BTW, what version of the OS are you running? I've been wanting to get the
system back out of storage and buy a copy of Amiga OS V3.9 and try that out.
Zane
Hello all,
I recently acquired an Osborne One, but it seems to be having a video
problem -- as in no video at all. I did the obvious - played with the
brightness and contrast -- but still nothing. If I press a key on the
keyboard, the floppy starts seeking, so I assume the rest of the computer is
at least partially working, but I get no video output at all. I have NO
docs or schematics, so it's a bit hard for me to test stuff out. The CRT
make no noise at all when power is either turned off or on (no static or
hum, or anything else). Also, I took the cover off, and carefully looked
inside while turning the power on, and the CRT didn't light up, or have any
other response.
After powering down, a very careful disassembly showed no physical damage
signs -- no burn spots, missing components, broken wires, etc.
Any clues?
This is the blue case, with the modem, and a composite video jack (female
RCA jack) in the bottom right....
Rich B.
"Rich Beaudry" <r_beaudry(a)hotmail.com> wrote:
> I recently acquired an Osborne One, but it seems to be having a video
> problem -- as in no video at all. I did the obvious - played with the
The O1 has a card-edge out the front that carries video signals. If
you were using the Osborne external monitor, it would have a cable to
mate with this connector. If you are using the internal monitor,
there's supposed to be a loopback connector plugged into this
(covering the card-edge). Sometimes the loopback connector gets
separated from the O1, though, in which case you get no video on the
internal monitor.
-Frank McConnell
On July 16, Rich Beaudry wrote:
> I recently acquired an Osborne One, but it seems to be having a video
> problem -- as in no video at all. I did the obvious - played with the
> brightness and contrast -- but still nothing. If I press a key on the
> keyboard, the floppy starts seeking, so I assume the rest of the computer is
> at least partially working, but I get no video output at all. I have NO
> docs or schematics, so it's a bit hard for me to test stuff out. The CRT
> make no noise at all when power is either turned off or on (no static or
> hum, or anything else). Also, I took the cover off, and carefully looked
> inside while turning the power on, and the CRT didn't light up, or have any
> other response.
No light from the CRT's filament? That's a bad sign. If there's
enough room in there, it might be a good idea to look carefully at the
neck of the CRT and try to identify the filament pins, then check
between them with an ohmmeter to see if the filament is open.
I have an operational Osborne One here, with the manual...if you want
me to look anything up for you, or do any probing, let me know.
-Dave McGuire
> Fred Cisin (XenoSoft) wrote:
>
>YOU just came up with the first clue. Connect a composite monitor
and see
>if there is video reaching the external jack.
>is there any software/magic keystrokes, etc. required to activate
the
>external video?
Do you need that funny little connector
to use external video? (Small black thing,
marked EXMON). I vaguely remember
some warning about ensuring that the
box is powered off when inserting or removing
the little beastire. (Oh, for a technical
manual ...)
Antonio
arcarlini(a)iee.org
There must be a shunt on the video edge connector that comes out at the
front middle of the case. It just connects the contact on the bottom with
the contact on the top of the circuit board. I can email you more info
tomorrow if you need it...got to run now.
Bob Feldman
-----Original Message-----
From: Rich Beaudry [mailto:r_beaudry@hotmail.com]
Sent: Monday, July 16, 2001 3:49 PM
To: classiccmp(a)classiccmp.org
Subject: Osborne One -- No video.
Hello all,
I recently acquired an Osborne One, but it seems to be having a video
problem -- as in no video at all. I did the obvious - played with the
brightness and contrast -- but still nothing. If I press a key on the
keyboard, the floppy starts seeking, so I assume the rest of the computer is
at least partially working, but I get no video output at all. I have NO
docs or schematics, so it's a bit hard for me to test stuff out. The CRT
make no noise at all when power is either turned off or on (no static or
hum, or anything else). Also, I took the cover off, and carefully looked
inside while turning the power on, and the CRT didn't light up, or have any
other response.
After powering down, a very careful disassembly showed no physical damage
signs -- no burn spots, missing components, broken wires, etc.
Any clues?
This is the blue case, with the modem, and a composite video jack (female
RCA jack) in the bottom right....
Rich B.
On July 16, Rich Beaudry wrote:
> Just wanted to share a very tiny, but nonetheless important moment for me.
> Took a homebrewed S-100 power supply, connected it to a nice Wameco
> motherboard (thanks ajp!), threw in a Cromemco SCC (thanks Mike for the
> monitor and Control Basic), and was greeted by a wonderful "OK >" prompt on
> my terminal. "QUIT" out to the monitor prompt (":"), and fooled around a
> bit, then a "B" back into Control Basic.
>
> Not much I admit, but a working SCC, good EPROMs, and a working
> PS/motherboard... It felt really good.
>
> Next up, I added a Cromemco 8K ByteSaver II, and read out some 2708s. I
> tried to program a couple, but got stymied. I think I just need to do more
> "R"ing of TFM. Neat to finally be able to at least read them out.
>
> All I need to do is throw in a couple of 16K Static RAM cards, and either a
> Cromemco TUART or a Godbout Interfacer, and I'll be rocking a bit! Final
> test is the Dynabyte floppy controller!
>
> Baby steps, I admit, but still felt cool....
Sounds like an extremely gratifying victory. Very cool! Congrats!
-Dave McGuire
Hello to all,
Just wanted to share a very tiny, but nonetheless important moment for me.
Took a homebrewed S-100 power supply, connected it to a nice Wameco
motherboard (thanks ajp!), threw in a Cromemco SCC (thanks Mike for the
monitor and Control Basic), and was greeted by a wonderful "OK >" prompt on
my terminal. "QUIT" out to the monitor prompt (":"), and fooled around a
bit, then a "B" back into Control Basic.
Not much I admit, but a working SCC, good EPROMs, and a working
PS/motherboard... It felt really good.
Next up, I added a Cromemco 8K ByteSaver II, and read out some 2708s. I
tried to program a couple, but got stymied. I think I just need to do more
"R"ing of TFM. Neat to finally be able to at least read them out.
All I need to do is throw in a couple of 16K Static RAM cards, and either a
Cromemco TUART or a Godbout Interfacer, and I'll be rocking a bit! Final
test is the Dynabyte floppy controller!
Baby steps, I admit, but still felt cool....
Rich B.
> This is definitely not a Pertec-interface drive.
> Has two what looked like 36-conductor edge
> connectors, plus or minus. Not 50.
I'm guessing it might be a StorageTek interface...
-dq
John Allain wrote:
>
> > I always 'megger' old transformers and most of them are as good as
> > the day they were made.
> > -tony
>
> Tony you lost me here. Kegger I heard of. Megger?
A "megger" is a meter so he means he checks the
winding resistance ... what's a kegger?
Antonio
arcarlini(a)iee.org
You might not believe it, but I actually have a light pen on my Altair 8800.
There was an article in one of the old hobbyist magazines how to do it, and we did it.
(my little brother and I)
We have a Processor Technology VDM-1 "video display module" in the Altair.
This was a very popular add-on module.
The VDM-1 allows software to read the current horizontal and vertical sync registers.
To make a light pen, we simply put a phototransistor in the end of an empty pen and strung some wires from it to a
prototyping card in the Altair.
We have a simple circuit that triggers an interrupt whenever a certain threshold is hit
The interupt processing software then reads the current horizontal and vertical scan positions from the VDM-1 card.
The VDM-1 only has character-level black&white graphics, but we could still draw on the screen by reversing the background
of the character blocks.
We had never heard of the "mouse" when we did this, so it seemed really high-tech and was quite fun.
The mouse is better though :-)
-Rob
-----Original Message-----
From: McFadden, Mike [SMTP:mmcfadden@cmh.edu]
Sent: Monday, July 16, 2001 11:40 AM
To: 'classiccmp(a)classiccmp.org'
Subject: RE: Subject: Light Pen for PCjr or PC?
>From: Michael Brutman <mbbrutman(a)chartermi.net>
>
>
>I've never seen a light pen in use on any machine ... I've
>only seen them in pictures. How do these things work?
>Does anybody know how to obtain one or have information
>on how to build on?
>
>
>Thanks,
>Mike
As I understand it the light pen detects the electron beam on the CRT
display as it passes the end of the pen and can decode from the timing where
the pen is located. Somewhere I have a light pen kit that was used to
emulate certain types of IBM terminals. Many hospitals used light pens to
move through the menus for patient registration and order entry.
Pointer to some more information
http://www.ftgdata.com/products/lightpennav.html
Mike
mmcfadden(a)cmh.edu
On Jul 15, 20:13, Tony Duell wrote:
> Hmmm... I have the US Beeb schematic somewhere.... OK, found it.
>
> The US version of the Beeb can output NTSC video.
> Having found the US Beeb schematic, that's what they did, almost. The
> cystal is 14.318MHz, and there are a couple of other capacitor changes in
> the oscillator circuit. The flip-flops are re-numbered (IC46 -> IC96 and
> IC44 -> IC97) but the circuit is unchaged electrically. And the output of
> IC97b goes to one side of link S32. The centre pin of the link goes to
> the xor gate input (now IC99d), the other outside pin is grounded. Set
> the link one way and you have PAL, set it the other way and you get NTSC.
> I think all BBC B+ machines have this link as standard (even the UK
ones).
Yes, I they do (mine has it, and it's shown on all the diagrams) and now
you mention it, it sounds familiar. Or more accurately, I remember seeing
soething about converting US machines back to UK spec (or UK-usable spec,
at least). One Acorn dealer re-imported a lot of unsold US and German
Beebs some years ago.
For readers unfamiliar with the BBC family, the original machines were the
Model A and Model B; the A lacking certain components present in the B to
provide multiple-ROM support, printer port, user port, serial port,
analogue port, 1MHz bus or Tube (2nd Processor) ports, and only having 16KB
RAM instead of 32KB. However, upgrading was easy (and both official and
unofficial kits were readily available) and there was no difference at all
between a B and a fully-upgraded A. Both could be further extended with a
disk interface, proprietary network interface, and various third-party
addons.
Then came the B+. This looked similar from the outside, but had a
redesigned PCB with 64K of RAM, some of which was used to "shadow" the
screen and OS workspace. There was a 64K upgrade for it, which made it a
128K machine (though you couldn't actually do much with the extra RAM
except put BASIC and it's variable space in it). It also used a 1770 or
1772 disk controller rather than the 8271 in the B (though you could fit an
8271 to a B+ or a 1770 to a B).
That was succeeded by the Master 128 -- externally as well as internally
different. It had a numeric keypad added, used double density disks by
default, had two ROM cartridge slots, more comprehensive MOS (machine
operating system), several utility ROMs that would be extras for a B/B+
were built in, and it used a CMOS 65C02. It also used more custom chips
:-(
There were some coprocessor addons for the 128 and other members of the
family launched shortly after it, like the Master Compact (a two-box
solution) and the ill-fated Econet Terminal (terminal and network software
only, no BASIC and no extra interfaces, didn't sell well and was quietly
dropped).
After that, in 1987, came the Archimedes range, based on the ARM processor.
Initially the A310 with 1MB, which still had red function keys to denote
its standing as a BBC Microcomputer, then the A440 (grey keys, not a BBC
Micro). And after that, the A3000 and its successor the A3010, which were
the last with BBC endorsement and once again were single-box systems (like
an Apple ][ or Amiga 500, etc). There were many other models in the
ARM-based range, ending with the RISC PC, but none were BBC Micros.
Despite all this, when someone refers to "a Beeb" they usually mean a Model
A or Model B, not a B+ or later.
Acorn trivia: the plastic case of the A3000 was deemed not strong enough
to support the weight of a multisync monitor, so a sheet-metal stand was
devised. The front of it sat on the strong edges of the A3000 case, the
rear was supported on a bent-over section. Because it clung to the case,
and from the front looked like the outline of a Klingon warbird, it became
known as "the klingon".
--
Pete Peter Turnbull
Network Manager
University of York
Many times it's not the surge through the power line but through the phone
line that gets you. I've lost two modems that way, one of my friends lost
his motherboard with a built-in modem because of lightning. I knew the
lightning would be a problem when I saw the power transformer and the pole
burning and then I found part of my phone wiring was toasted. My UPS
warbles all the time from voltage and line variations. I've got both my
router and cable modem plugged in to it.
Maybe I'm paranoid, of course I live on a lake in Missouri where trees fall
on the power lines all the time, we have thunderstorms and the occasional
tornado and the all too common fried squirrel on the transformer.
Mike
mmcfadden(a)cmh.edu
>From: Michael Brutman <mbbrutman(a)chartermi.net>
>
>
>I've never seen a light pen in use on any machine ... I've
>only seen them in pictures. How do these things work?
>Does anybody know how to obtain one or have information
>on how to build on?
>
>
>Thanks,
>Mike
As I understand it the light pen detects the electron beam on the CRT
display as it passes the end of the pen and can decode from the timing where
the pen is located. Somewhere I have a light pen kit that was used to
emulate certain types of IBM terminals. Many hospitals used light pens to
move through the menus for patient registration and order entry.
Pointer to some more information
http://www.ftgdata.com/products/lightpennav.html
Mike
mmcfadden(a)cmh.edu
Bill,
I tried that. I navigated to /usr/openwin/bin/ and typed openwin at the #
prompt. The OS returned the message "openwin: not found"
:-( Ideas?
Thanks,
Drew
p.s. - I'm logged in as root if that makes a difference. I'd also like to
set up a seperate user account... I'm going to try to look around for a way
to set up a user account.
>/usr/openwin/bin/openwin should work... if you didn't install CDE.
>CDE is usually on an additional CDROM IIRC... been a long time since
>I've seen Solaris 2.4.
>Bill
_________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
Well, I am back from my trip to London and picked up my 3 boxes.
There are *a lot* of vintage documentation on the transputer including
but not limited to:
full 3L compilers (Pascal, C, & Fortran) with TBug debugger
IMSD100 Occam compiler
IMSD705B Occam compiler
A nearly complete collection of Occam Users Group newsletters
A nearly complete inmos tech notes
whitepapers, product info on various transputer vendors
user guides for various inmos & transtech boards
and boxes and boxes of floppy disks contains various transputer
programs and support software. Unfortunately, I didnt have
enough space to take the floppy disks, so I had to leave it behind
in our London office. I got to pick it up later on when I get back
there.
As for boards, I am the proud owner of:
2 IMSB012 16-slot transputer tram boards
1 IMSB004-4 evaluation board
1 IMSB001 evaluation board
4 TTG1 graphics tram
1 TTM110 T805 + i860 Vector processor tram
and 1 M212 disk controller of some sort. Most of the
ICs are missing including the M212. Seems to be
some prototype or unfinished board.
I'll start sorting out these and start scanning a lot of the
documentation. The nice thing about these is it is not
in book format, so making it a lot easier to scan. Now,
I just need some time to actual do the scanning :-(
Cheers,
Ram
PS: Still looking for an IMSB000 - must be quite rare.....
--
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| Ram Meenakshisundaram |
| Senior Software Engineer |
| OpenLink Financial Inc |
| .oooO Phone: (516) 227-6600 x267 |
| ( ) Oooo. Email: rmeenaks(a)olf.com |
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