> > I want to have as many different kinds of segments on my network
> > as I can manage, which means running a model 95 OS/2 system to bridge
> > between 10bt and tokenring on twinax.
>
> To round out that heterogeny, you need a set of Thomas-Conrad ARCNet
> cards (unless you can find 20Mbps-Datapoint cards), a passive hub,
> and a serial-port-based Token-ring network that uses software written
> in Russia. The Russian software lets you host drives that are actually
> shares from other machines!
>
> You'll want to use a Mac to bridge Ethernet to Localtalk, if you
> can find the software...
>
> What else?
>
> -dq
How about bisync or SNA? At one place, we used to have a VAX HASP point-to-
point network for file transfer (it's easy when you don't have to buy the
hardware or software).
DEC used to make an ethernet to SNA gateway based on the uVAXII, didn't they?
-ethan
=====
Visit "The Seventh Continent"
http://penguincentral.com/penguincentral.html
__________________________________________________
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Get personalized email addresses from Yahoo! Mail
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I have a board that describes itself as:
VERSATEC
LSI 11 DIFF INTF
22 BIT ADDRESS
G10-024898-
I believe it is an interface to some sort of hard copy device. If
anyone wants it, it is theirs for the price of shipping.
--
Jeffrey S. Sharp
jss(a)ou.edu
=== ard(a)p850ug1.demon.co.uk 26/06/2001 20:58:26 ===
>
>> On Mon, 25 Jun 2001 18:40:44 +0100 (BST) Tony Duell
>> Tony, any sign of a secondhand chain called Cash Converters
>> in the London area? The big Bristol branch has closed, but
>
>Cash Converters were still going a couple of weeks back, so unless
>they've closed very recently they are still trading.
Cash Converters is a franchised operation.
>But their prices
>tend to be out-of-this-world (No, I don't think a battered C64 is worth
>50 quid, OK...). I think I've found exactly one bargain in that chain
>over the years.
A lot depends upon how clued up the individual store is, and how much of a particular type of equipment is being sold in the area.
>They may be the only shop where you will find classic computers, though.
If you find anything other than consoles, or the occasional PsionII I'd be very surprised.
Alistair
I believe there is an x-ray machine in my ex-girlfriends' parents' garage..
I need to get the rest of my Wang out of her garage anyways, so I can check
if you want...
Will J
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com
I just came across at the local computer surplus a pair of DEC DEREP's.
Some kind of network repeater. I also saw two VS240-B boxes. I haven't
found the monitor. Anybody want me to pick them up.
Mike
mmcfadden(a)cmh.edu
On June 27, Tony Duell wrote:
> [1] Wintel, only, alas. Totally useless to me.
There are "generic serial" interfaces now...PIC12C508-based, of
course, and very tiny, with documented control protocols. The X10
people have bought VERY LARGE CLUES, and I'm very happy about it.
> > They're all PIC-based, by the way...the modern dimmer modules contain
> > 12c508 chips.
>
> I am not suprised. I think they used to be based on some kind of ASIC,
> but it would make sense for them to use PICs now.
I use a very nice commercial C compiler/dev environment for my PIC
hacking, the PCW system from CCS. (see http://www.ccsinfo.com/picc.html)
This system contains dozens of code snippets that implement practical
examples of how to do things with PICs and their compiler. One of the
examples is the X10 protocol. Very handy.
(I don't work for CCS, I'm just a very happy customer!)
-Dave McGuire
>>>Does anyone know where to find a punched card reader
>>>these days? I'm looking for a small desktop unit that
>>>I could interface to a PC.
>>
>> I know that Harris sold a very small table top unit that was
>>used by the US Navy with the Harris SNAP-II mini. You might be able
>>to find one someplace that deals with government surplus.
>
>Yes, but wasn't that a single card at a time, and hand fed? Or was there
>another model?
Yes, it was only single-feed, through a slot in the front of the box. I
mentioned it though because he didn't specify a specific type and figured he
might be able to find one with a little checking. Afterall, there are still
ships using the Harris mini's as far as I know. I've not heard that Snap-II
had been totally phased out of use yet.
Jeff
In a message dated 6/27/01 4:42:35 AM Central Daylight Time,
mikeford(a)socal.rr.com writes:
<< >BTW, I'm also very fond of MCA. Just glad I haven't got on my own
desktop. =)
A model 9595 was the first computer I was really impressed with
mechanically when I opened it up. Its built like a Porsche, and actually
LOOKS good internally.
I have a couple dozen of various models, with about a dozen 9595 servers.
One of my big scores in the auction last month was a box of 3Com MCA 10bt
cards I had been trying to buy for a year or two. >>
I've enough MCA goodies to fill an entire room. My favourites are the 95xx
series, since they are a bit more modern with the IML partition and all that.
One of my neatest machines is the "E" machine and an ultimedia model with the
MO disk drive and the video capture card, all running perfectly under OS/2.
"Steve Robertson" <steven_j_robertson(a)hotmail.com> wrote (after me):
> >The sticky bit would be that the 3000's terminal I/O is essentially
> >one-way-at-a-time: if the terminal device doesn't have a read request
> >posted, then most data sent from the attached device will be discarded
> With the exception of a few watchdog functions (which I wouldn't be using
> anyway), all OPTO22 communications are done through polling. So, that
> shouldn't be too big a hurdle.
Maybe, maybe not. Remember that the terminal I/O device can only do
one thing at a time. If you've done a write to send the poll request,
you don't have a read pending and it will take you a little while to
start the read. If your OPTO22 widget starts sending its response
before you get that read up then you will lose some or all of the
response.
It is possible to get the 3000 to indicate when it's got the read up
by sending a read trigger character. The typical read trigger
character is DC1 (control-Q) on terminal types 9 and 10 (among
others), but this is changeable somewhat if you fuss around with the
workstation configurator (TTUTIL.PUB.SYS?) and make up a new terminal
type definition file which you then associate with a terminal device
through SYSDUMP.
The intended use of the read trigger character is telling the HP
terminals when they can start a block-mode transfer, but there's no
reason you can't abuse it for your own purposes.
-Frank McConnell
=== ard(a)p850ug1.demon.co.uk 27/06/2001 00:25:35
>
>> On June 26, Richard Erlacher wrote:
>> > communication via the power mains, isn't it? My notion to date has been that
>> > the X-10 stuff is a mite costly, considering that one could hook up a triac, an
>> > MOC30-something isolated triac driver, and a PIC, e.g. one of the 14-pin or
>> > even 8-pin parts, and put the thing in the box with the switch.
>>
>> Costly? A 300W dimmer module costs like nine bucks. When I add up the
>
>This probably explains why X10 is not at all popular in the UK (and yes,
>a 230V version does exist). I seem to remember that last time I looked at
>the price of the modules they were all about \pounds 40.00 each. And the
>computer [1] interface was about \pounds 90.00. I decided it was going to
>be far too expensive for me to use.
I checked with them, and they sent me a list of their European suppliers once. (They also put me on one of their spam lists - not just their spam, but their 3rd party European suppliers one too ....) When I queried the large jump in costs they tried to blame the need for 230V PSUs instead of 110V.
Something else to consider is that a lot of the items are not approved for use in the EU. (One of their UK suppliers happens to list the approval status - don't ask me which)
Alistair
>RS not only house brands theirs but they also get them from China and they
>don't last long. None of the ones that I've gotten from RS have lasted
>more than a couple of months and at least half of them die within a week.
>Lesson: Don't buy anything from RS! X-10 has licensed it's technology to
>Levitron, RS and a number of other companies so they're all interchangeable
>but there's a big differrence in the quality of the parts.
> Joe
You live in the lightning capitol of the world. That could be a factor!
Just wondering, how many modems you've had to replace?
SteveRob
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com
> I am looking for a real x-ray generator- Modifying kitchen
> appliances or using thyratrons coated with magnesium won't due. I have
> x-ray tubes and all the rest, but the power supply is the toasted bit.
I recall an article in a late-50s/early-60s issue of Scientific
American that detailed the construction of an X-Ray machine.
hth,
-doug q
I've updated the cw2dmk program to version 1.6. This is a program that
uses the Catweasel ISA disk controller to read disk formats that are hard
or impossible to read with an ordinary PC floppy disk controller. The
new version adds a few features, among them the ability to read the DEC
RX02 double density format. See http://www.tim-mann.org/trs80resources.html
Source code is included under the GPL, so those who prefer to build their
own hardware instead of buying a Catweasel (let's not start *that* debate
again) may find it of some use too.
Tim Mann tim.mann(a)compaq.com http://www.tim-mann.org
Compaq Computer Corporation, Systems Research Center, Palo Alto, CA
I picked up a TI Silent 700 model 707 recently (a nice, small variant
with built-in modem, see http://pobox.com/~fmw/misc/Silent700.jpg),
with hopes of converting to use as a direct line serial terminal.
Before I open it up and poke around, does anyone already know how to
do this? Portwise, there are two RJ11 ports (phone&wall) and a 6-pin
acoustic coupler port of unknown pinout.
Thanks
Fredric White
As mentioned previously, I've registered DECDOCS.ORG, and have started
the tedious task of scanning in all the documentation I have.
I'm about halfway through scanning the '69 DEC Logic Handbook
(positive logic edition), by laying the book as flat as possible
(not using the scanner top cover), and scanning 2 pages at once.
Some of the pages are starting to come unglued, and I'd like to
avoid destroying the book while archiving it. Any suggestions on
what to use to re-glue the pages, or rebinding, etc? I've got
quite a pile of these handbooks and will be doing the same (scanning)
to them, but this is definitely the oldest / most fragile handbook
in the collection.
Thanks for any tips.
Bill
--
Bill Bradford
mrbill(a)mrbill.net
Austin, TX
>From: Mike Ford <mikeford(a)socal.rr.com>
>Reply-To: classiccmp(a)classiccmp.org
>To: classiccmp(a)classiccmp.org
>Subject: Re: power control
>Date: Mon, 25 Jun 2001 16:34:13 -0700
>
> >But as I said, it depends on what you want to do. If all the devices are
> >close together, a simple relay-driver + relays might is probably the
>
>Do you know what I mean by, the urge to engineer? It is the irresistable
>force that makes us tinkering types want to make something instead of doing
>it. ;)
>
>Maybe that is why I have ended up doing process control work so many times.
>Its just fun to turn stuff on and off with the computer, and the bigger the
>mess of stuff, the better.
>
You might consider OPTP22 devices.
I'm currently working on a home automation project using OPTO22 technology.
I have found them to be easy to interface, flexible, cost effective, and
very reliable. The devices are controlled via a RS422 serial interface
(easily converted to RS232) and drivers are available for a number of OSs
including DOS, WINDOWS, and Linux. The protocols aren't that complex so
writing your own driver, if one is not available, wouldn't be too difficult.
Most of the work I've done so far is basic experimentation and prototyping.
I currently have a OPTO22 controller interfaced to a HP 9000/832 running
HP-UX 10.20. It can turn on and off a few lights, measure the temperature in
the house, etc... All the collected data is captured into an Informix DB.
The application(s) are written in PERL / CGI and I have put together a
rudimentary web interface. I don't have a static IP otherwise, I'd publish
the address so others could see the system in operation.
My ultimate goal is to build an automated Printed Circuit Board drilling
machine using a classic HP 3000 MPE computer running COBOL. I'm not sure if
OPTO22 is suitable for that application or not, I'll need to do a lot more
experimentation to make that determination. If it's too difficult, I may
wind up using a STD BUS computer as a smart controller/interface between the
drilling machine and the 3000.
FWIW: All the hardware I'm running is over 10 years old so, it is on topic.
With the exception of the 9000, most of it is closer to 20 years old.
SteveRob
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com
Bill Pechter <pechter(a)bg-tc-ppp1654.monmouth.com> wrote:
> Sounds like a Bay Networks router or ethernet bridge...
> They were bought by Nortel... good luck finding docs.
> Souns like it may be a late 1980's or early 1990's piece... similar
> to Cisco AGS routers.
Furthermore, Bay Networks was formed from a merger/acquisition between
two previously-separate companies: Synoptics and Wellfleet. That
happened in the mid-1990s sometime, maybe 1994 or 1995? I don't
remember.
-Frank McConnell
Hi, Bruce.
On Jun 26, 7:24, Bruce Lane wrote:
> Please pardon the page, gang...
>
> John? Do you copy? If you would, please try to send E-mail to my
> kyrrin(a)bluefeathertech.com address once again. I've received a firmware
> update from Zyxel that should, supposedly, have fixed that SMTP problem.
Well, I ain't John, but since I also had the same problem, I figure it
won't hurt to test it...
--
Pete Peter Turnbull
Network Manager
University of York
Hi,
Just to make it clear, all the transputer stuff is now gone. Here is a
list of people and who is getting what:
Hans Franke - one box of CSA transputer software
Tony Eros - one box of CSA transputer software + Inmos ANSI C manuals
Graham Scott - one box of CSA transputer software
Michael Haas - one box of CSA transputer software + CSA transputer manuals
Danny Rafferty - one box of CSA transputer software
Dave Lowry - one box of CSA transputer software
Jeff Shaw - one box of CSA transputer software
If you have not already done so, please send me your addresses, so that
I can
find out what the shipping costs are. For others who werent so lucky,
most of
the software or equivalent to can be downloaded from my website at
http://members.nbci.com/transputer.
For others who is looking for a transputer, but doesnt have one, I
suggest you take a look at the
"transputing without transputers" section on my website.....
Cheers,
Ram
On June 26, Eric Chomko wrote:
> > > hey do you have any ideas about using relays or some thing connected
> > >to a parallel or aerial port to control the power to an outlet, you know
> > >like a dimmer switch controlling motors ETC if you have any thought
> > >or ideas I'd be glad to hear them.
> >
> > X10, why reinvent the wheel?
>
> Does anyone on this list use X-10 in one of their systems? And if so,
> what for? Just curious.
I use it to control most of the lights in my house...I like it a
lot.
-Dave McGuire
On June 26, Russ Blakeman wrote:
> I feel bad...Only 20 functionals in the house, but I do have over 150
> varying PC's in my storage building, mostly PS/2's....
Wow, neat, why so many PS/2's? Do you just like 'em, or are you
planning something diabolical? ;)
-Dave McGuire
>
>The sticky bit would be that the 3000's terminal I/O is essentially
>one-way-at-a-time: if the terminal device doesn't have a read request
>posted, then most data sent from the attached device will be discarded
>(the exceptions being break and subsystem break indications). And
>trying to do anything else with the terminal device will involve
>aborting the read request, doing the something else, and starting a new
>read request.
>
>If the OPTO22 protocol can work around this, you're probably OK.
>Otherwise, you will probably need to build a front-end processor of
>some sort.
>
>If you have questions, feel free to ask, but my COBOL is rustier than
>my SPL, and so I will probably present terminal I/O examples in the
>latter with heavy [ab]use of MPE intrinsics.
>
With the exception of a few watchdog functions (which I wouldn't be using
anyway), all OPTO22 communications are done through polling. So, that
shouldn't be too big a hurdle.
Since I've never done any terminal I/O programming on the 3000, I decided to
start with the 9000 which is much more familiar. Once I have a proof of
concept running, I can port it back to the older box.
SteveRob
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com
Hi,
A dutch auction for 20 T800 Transputer chips is currently running:
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1250072346
Its a bit pricey IMHO, but with the shortage of T8s in general, it
should go
pretty fast. Any commercial users of transputers out there????
Ram
--
,,,,
/'^'\
( o o )
-oOOO--(_)--OOOo-------------------------------------
| Ram Meenakshisundaram |
| Senior Software Engineer |
| OpenLink Financial Inc |
| .oooO Phone: (516) 227-6600 x267 |
| ( ) Oooo. Email: rmeenaks(a)olf.com |
---\ (----( )--------------------------------------
\_) ) /
(_/
>I'm actually interested in one for purposes of data conversion (his card
>will allow a 3.5" drive to be connected to an SS-50 machine).
From what he said a couple of days ago, it was working well on his 6800
and a 6809 but that he was having intermittent problems while formatting on
a S/09. I've been considering one myself, due to how flexible it is, once
he works out the remaining bugs. He said there shouldn't be any
compatibility problems between the board and most OS's.
Jeff
All, but particularly the UK readers,
You've probably already seen this, but today on comp.sys.dec and
comp.sys.dec.micro respectively, I saw the below announcements. I have some
interest, but probably not as much as the cost of shipping, in
Rainbow manuals (but I'd rather ard gets 'em, he'll appreciate them better)
DEC kb and mouse (to go with my VAX 4000 VLC)
AIX 3.x manuals (a lab here has an AIX 3.2 machine with no manuals):
so if anyone picks up the pile and is willing to investigate shipping to San
Antonio, TX, I'm mildly curious as to the cost.
- Mark
----------------------------------------------------------
Path:
sn-us!sn-xit-02!supernews.com!news.tele.dk!195.224.53.60!nntp.news.xara.net!xara.net!gxn.net!server6.netnews.ja.net!server4.netnews.ja.net!jura.cc.ic.ac.uk!anahata.ma.ic.ac.uk!andy
From: andy thomas <andy(a)ic.ac.uk>
Newsgroups: comp.sys.dec,comp.sys.sun.hardware,comp.sys.sun.wanted,comp.unix.aix
Subject: Free manuals and kit
Date: Tue, 26 Jun 2001 12:21:13 +0100
Organization: Imperial College, London, UK
Reply-To: <andy.thomas(a)ic.ac.uk>
During a clear-out I came across a lot of manuals for DEC and Sun kit we
no longer have. Some of this is brand new and has never been taken out of
its shrink-wrapping so it would be a shame to throw it away if someone has
a use for it. If anyome wants. it they're welcome to it for free. We have
the following:
IBM AIX: various AIX 3.x manuals, application manuals, etc
too numerous to list here
DEC: manual sets for VR-319 monochrome monitor, RRD42
CD-ROM drive, DEC 3000 AXP models 400 and 600,
manuals for the various Elsa graphics cards fitted
to PWS 500's and XP1000's
Sun: One complete documentation set for SunOS 4.1.3,
several complete manual sets for SparcStation 1
and ELC 1
I've also got some hardware I don't want:
DEC: One LA75 printer, three DEC Station 3100's (MIPS
CPU) complete with disks (Ultrix 4.2) but various
hardware faults, various DEC keyboards & mice.
Sun: several SparcStation 1's (one is in working order
with a noisy disk but the others have various faults),
several Sun 17SMM1 monitors, three Sun EXP-2
external SCSI disk expansion units complete with disks
and various Sun keyboards and mice.
I'm located in Londion, UK. Please use my reply-to address
(andy.thgomas(a)ic.ac.uk) as my from-address is broken (no time to fix my
sendmail!).
Andy
---------------- and -----------------------
Newsgroups: comp.sys.dec.micro
Subject: Re: DEC Rainbow Hard disks, rainbow software archive, reading rainbow
floppies
Date: Tue, 26 Jun 2001 11:52:56 +0100
Organization: Imperial College, London, UK
Lines: 23
...
Reply-To: <andy.thomas(a)ic.ac.uk>
On Sun, 10 Jun 2001, B'ichela wrote:
> =09Hmm. I got a rainbow 100A With the Color/Graphics card but no
> hard drives (although at least a second RX50 would be great!
I've got an RX50 in good working order that I don't want. Whereabouts are
you?
I've also got the full set of DEC service manuals, schematics, etc for
both the 100A and 100B, IPBs (illustrated parts breakdowns) which cost
cost me well over UK =A3100 back in 1987. Any use to anyone?
I gave my 3 Rainbows (one with 44 MB hard disk, colour graphics,
VR-241 monitor, 3.5" I-drive, etc), Code Blue, all software, etc to a guy
called Antonio who worked for Cabletron Systems in Reading, England
sometime in 1997 or 1998. This was shortly after DEC bought up Cabletron
but before Compaq in turn took them over - I don't know if he still reads
this newsgroup.
Andy
R.D. Davis wrote
>What we need is a method of good-quality printing, useful for archival
>quality, that's reasonably affordable to most people who already own
>computers.
>Like manhy others here have most likely experienced, I've had
>laser-printed pages stick together, injet printed pages become
>unreadable when they get a little to damp, and dot-matrix output fade
>out.
>Suggestions?
Maybe there would be a way to load archival quality ink into an inkjet
cartridge and then print the documents on acid-free paper. I purchased 3
non-working HP 1200C printers for $20, included cartridges. They have
cartridges for each color ink. I'll bet they might clog if not cleaned
correctly.
You could also perhaps find pens for a HP or other plotter containing
archival quality ink and then plot the documents on acid free paper. I know
you can get acid free plotting paper, the land plats I occasionally see are
drawn on linen or cotton paper. I've seen 60 year old copies that look
great. The modern ones are drawn by a plotter.
Hire a team of scribes to read and transcribe the documents on vellum, any
illumination would be a plus.:)
After some thought and research I have found the following:
Pointer to image permanence institute at Rochester Institute of Technology.
http://www.rit.edu/~661www1/
Pointer to archival quality inks for inkjet printers.
http://www.tssphoto.com/sp/dg/archival_inks/color.html
Pointer about lifetimes of inks and papers for inkjets, may be more image
oriented than text
http://www.tssphoto.com/sp/dg/news/Wilhelm062000.pdf
Mike
mmcfadden(a)cmh.edu
Ethan, I tried to reply to your private e-mail, but it bounced.
the address is the iname one.
--
Jim Strickland
jim(a)DIESPAMMERSCUMcalico.litterbox.com
-----------------------------------------------------------------------
BeOS Powered!
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"Steve Robertson" <steven_j_robertson(a)hotmail.com> wrote:
> My ultimate goal is to build an automated Printed Circuit Board drilling
> machine using a classic HP 3000 MPE computer running COBOL. I'm not sure if
> OPTO22 is suitable for that application or not, I'll need to do a lot more
> experimentation to make that determination. If it's too difficult, I may
> wind up using a STD BUS computer as a smart controller/interface between the
> drilling machine and the 3000.
The sticky bit would be that the 3000's terminal I/O is essentially
one-way-at-a-time: if the terminal device doesn't have a read request
posted, then most data sent from the attached device will be discarded
(the exceptions being break and subsystem break indications). And
trying to do anything else with the terminal device will involve
aborting the read request, doing the something else, and starting a new
read request.
If the OPTO22 protocol can work around this, you're probably OK.
Otherwise, you will probably need to build a front-end processor of
some sort.
If you have questions, feel free to ask, but my COBOL is rustier than
my SPL, and so I will probably present terminal I/O examples in the
latter with heavy [ab]use of MPE intrinsics.
-Frank McConnell
>BTW, does anyone know anything about Bay networking systems?
Err...too much. I've got some clients running them, and I've done several
non-trivial networks using them.
>I once bought a big, white case at the fleamarket, which had
>been in service at a power station. One label said "LAN BRIDGE
>REPEATER" or something to that effect, and when I finally wedged
>it open, it seemed to be a VME system. The "main" board had two
>68020s, one at 16 and one at 20 or 24 MHz. The system
>also had a floppy drive, which was accessed at startup, and spome
>status lights. Other boards had several serial ports, AUI and some
>other ports which I couldn't recognise.
They are VME (sorta), and long ago obsoleted. You had a really old one;
they matched Motorola pretty close as far as processors, eventually being
one of the few big adopters of the 68060.
Backplane ran down the middle. You plugged a processor card in one side,
and a ports card in the other, for each slot. Ran from, as I recall, a one
slot fixed unit to a 13 slot monster (BN/BLN). The OS they ran was loosely
multiprocessing, with an image running on each processor card. This allowed
you to reboot a single processor board without bringing the whole box down
(well...there were caveats, especially if you were running OSPF). Nice
boxes, in many ways better than the competing Cisco product.
As an aside, unless you were really good at remembering SNMP OID strings,
you configured the things with a tool called Site Manager. This is *still*
one of the worst pieces of software I've ever used; they've done nothing to
fix it in a decade. And every different version of the router code required
a different version of Site Manager; little or no forward or backward
compatability.
>Bay have since been bought by another companym which in turn has
>been bought by yet another, which made finding information about
>it quite impossible. Why do people feel such a desire to dismantle
>the web sites of conquered companies?
It's more complicated than that. That router was actualy produced by
Wellfleet, who later merged with Synoptics to form Bay Networks. Bay was
later purchased by Nortel Networks, who is now in the process of trying not
to go out of business. A search for "Wellfleet router" should give you
sufficient info.
Ken Seefried, CISSP
I just got an incredible haul of DEC docs in the mail. Once I
get through scanning these and putting them up as .pdf's on
DECDOCS.ORG (which I just registered), the actual handbooks, etc,
themselves will need a good home, and I dont have space for them -
but I refuse to toss stuff like this away. I'd like to trade them
for other DEC PDP stuff if possible.
So, if anybody's interested, please let me know. I'll be done
with these in a month or so, assuming I get plenty of time to
use my scanner.
The list:
Everything is in "Good" or better condition, given some yellowing
of the pages due to age, of course. Only one of the handbooks has a
torn cover, and its only slightly dog-eared.
Handbooks:
Year Title
-------------
69 Digital Logic Handbook
70 Digital Logic Handbook
70 Laboratory Computer Handbook (PDP-12) (x2)
70 PDP-8/E Small Computer Handbook
71 PDP-8/E & 8/M Small Computer Handbook
71 PDP-11/45 Processor Handbook
72 PDP-8 Programming Langugaes Handbook
72 Microcomputers and Memories
72 Logic System Design Handbook
72 PDP-11/40 Processor Handbook
72-73 PDP-11/45 and 11/50 System Maintenance Manual
73-74 Digital Logic Handbook
75 PDP-11/70 Processor Handbook
75-76 LSI-11 PDP-11/03 Processor Handbook (x2)
75-76 Digital Logic Handbook
76 RK11-D & RK11-E Moving Head Disk Drive Controller User's Manual
76 DR11-C General Device Interface (x2)
76 PDP-11 Software Handbook
76 PDP-11/34 Processor Handbook
76 PDP-11 Peripherals Handbook
76-77 Digital Logic Handbook
77 PDP-11/60 Processor Handbook
78 PDP-11 Processor Handbook (04/34/45/55/60)
78 Microcomputer Processors
78 PDP-11 Peripherals Handbook
79 RSX-11M System Generation and Management Guide
81 VAX Architecture Handbook
83 Cables: Handbook for the System Builder
83 PDP-11 Software Source Book Vol. 1: Application Software
83 PDP-11 Software Source Book Vol. 2: Systems Software
83 RSX-11M Mini Reference (in mini binder)
83-84 Micro PDP-11 Handbook
84 ULTRIX Software Guidebook
88-89 Software Handbook
Catalogs:
Year Title
-------------
82 DECdirect Spring
84-85 DECdirect Winter
87-88 DECdirect Plus Summer/Fall
88-89 DECdirect Plus Summer/Fall
88-89 DECdirect Plus Winter/Spring
85-86 DECdirect Plus Fall/Winter
84 Add-Ons and Upgrades
83 (May) Emulex Controller Handbook: Communication and Peripherals
The Software Dispatch Review (bug reports):
Year Title
-------------
1974 RSX-11D (Sep, Oct, Dec)
1975 RSX-11D (Jan, July)
RSX-11D V6A (Oct)
1976 RSX-11D V6B (Jan)
RSX-11D / IAS (Feb, Mar, Apr, May, Jun, Jul, Sep, Oct, Nov, Dec)
1977 RSX-11D / IAS (Jan, Feb, Mar, May, July,
--
Bill Bradford
mrbill(a)mrbill.net
Austin, TX
Please pardon the page, gang...
John? Do you copy? If you would, please try to send E-mail to my
kyrrin(a)bluefeathertech.com address once again. I've received a firmware
update from Zyxel that should, supposedly, have fixed that SMTP problem.
Thanks much.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner and head honcho, Blue Feather Technologies
http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com
Amateur Radio: KC7GR, active since 12-77 (Extra class as of June-2K)
"I'll get a life when someone demonstrates to me that it would be
superior to what I have now..." (Gym Z. Quirk, aka Taki Kogoma).
> >But as I said, it depends on what you want to do. If all the devices are
> >close together, a simple relay-driver + relays might is probably the
>
> Do you know what I mean by, the urge to engineer? It is the irresistable
> force that makes us tinkering types want to make something instead of doing
> it. ;)
>
> Maybe that is why I have ended up doing process control work so many times.
> Its just fun to turn stuff on and off with the computer, and the bigger the
> mess of stuff, the better.
Hey, I used to do distribution centers: sortation conveyors, vertical and
horizontal carousels, pick stations, etc. We used Quatech boards with Opto
22 modules stuffed in IBM PS/2 Model 80s which we stuffed in turn in big
Hoffman cabinets, and, contrary to my specs, unventilated. They ran like
gangbusters!
We'd gone in to Rose's Distribution center down in Raleigh-Duram area,
and found they had to keep a $250,000 inventory of spares *just* for
the custom controllers they used. We figured it would be a lot cheaper
to keep a couple Model 80s and some Quatech I/O boards around.
We were told that if we botched the timing of the sortation conveyor,
that the whole line could "explode"; the contractor said he'd seen
conveyor rollers embedded in a warehouse ceiling, once...
Lights going on and off, arms swinging lanes shut, packages shuttling
off into other lanes, etc. Some of the most fun I've had in computing!
And all on-topic, as everything described in the list is > 10years old.
Regards,
-doug q
On Jun 25, 14:20, Iggy Drougge wrote:
> BTW, does anyone know anything about Bay networking systems?
Who bought SynOptics, and were in turn bought by Nortel...
> I once bought a big, white case at the fleamarket, which had been in
service
> at a power station. One label said "LAN BRIDGE REPEATER" or something to
that
> effect, and when I finally wedged it open, it seemed to be a VME system.
The
> "main" board had two 68020s, one at 16 and one at 20 or 24 MHz. The
system
> also had a floppy drive, which was accessed at startup, and spome status
> lights. Other boards had several serial ports, AUI and some other ports
which
> I couldn't recognise. The case had once been rackmouted, and had the
mounting
> brackets still.
Sounds quite similar to some of the older 3Com kit, such as the Netbuilder.
I've not seen much old Bay Networks equipment, but if it's like the
Netbuilder, then it was a modular device into which you could put various
interfaces (on the Netbuilders, each has it's own processor, and the main
board is used to provide management facilites). Mine has FDDI, 10baseFL, a
couple of AUIs and BNCs for 10base2. It boots from a 4MB 3.5" ED floppy,
and I use it as a router (depending on what you put in, it can be a
repeater, bridge, or router).
> Bay have since been bought by another companym which in turn has been
bought
> by yet another, which made finding information about it quite impossible.
Why
> do people feel such a desire to dismantle the web sites of conquered
> companies?
Standard problem :-(
--
Pete Peter Turnbull
Network Manager
University of York
From: Bill Bradford <mrbill(a)mrbill.net>
>On Fri, Jun 22, 2001 at 11:20:44PM -0400, David Gesswein wrote:
>> My scans (and other peoples)
>> http://www.pdp8.net/query_docs/query.shtml
>
>Thanks for the tips. Looks like you've already done quite a few of the
>handbooks that I have - which will save some work. I'll also link to
>your site from decdocs.org if thats okay with you.
More links are always good. I was also planning to contact you
about putting any 8 relevant docs in my database pointing to your site
when you had them online.
Also about the DEC copying notice
>From ftp://ftp.dbit.com/pub/pdp8/doc/README
>From the January 1985 Software Documentation Products Directory (EJ-26361-78),
first page:
3. RIGHT TO COPY
Beginning January 1, 1985, Digital customers are given a right to copy, at
no charge, any Digital Archival Software Documentation Publication
(excluding restricted or third party owned) that we no longer offer for
sale. However, the copyright is retained as the exclusive property of
Digital Equipment Corporation.
David Gesswein
http://www.pdp8.net/ -- Run an old computer with blinkenlights.
Innovation is irrelevent.
Freedom is irrelevent.
Death is irrelevent.
Resistance is futile.
You will be assimilated.
On Mon, 25 Jun 2001 21:04:30 -0500 Michael Passer <mwp(a)acm.org> writes:
> Let's have a moment of silence for the Alpha, and for DEC.
>
> /me removes hat and bows head.
>
> ----- Original Message -----
> From: "Jeff Hellige" <jhellige(a)earthlink.net>
> To: <classiccmp(a)classiccmp.org>
> Sent: Monday, June 25, 2001 8:32 PM
> Subject: Re: BIG haul of DEC docs!
>
> > . . . In addition, over the course
> > of the next
> > 3-4 years, Compaq will migrate all of its server-based
> technologies
> > (including OpenVMS, Tru64 and its Linux work) to the Itanium
> platform.>
>
________________________________________________________________
GET INTERNET ACCESS FROM JUNO!
Juno offers FREE or PREMIUM Internet access for less!
Join Juno today! For your FREE software, visit:
http://dl.www.juno.com/get/tagj.
> From: charles hobbs <chobbs(a)socal.rr.com>
> Subject: Trip to London, want BBC Micro stuff...
> This fall (Sept 29-Oct 3) I'll be in London...while I'm there, I'd like to
> pick up some BBC Micro stuff (disk drives, software, etc. would be nice).
...
> I know there are issues about charity shops selling electronic
> equipment, though...
Virtually no chance of finding such in a charity shop - much better chance
at a boot fair (still not brilliant, but I tend to see Acorn stuff
(Beeb/Master/Electron) at about 1 sale in 3 - Spectrums, Amigas, and STs are
more common. Macs used never to be found, but I have seen quite a few
recently.
If you have use of a car I can let you know the locations of 4 or 5 big boot
fairs in Essex. Get up early and you should be able to go round that many in
a morning (most of them finish around midday).
Andy
You can see http://www.bhargavaz.net/nvram/nvram.html
Thanks
+++++++++++++++++++++++++++++++++++++++
Hi all!
Just curious, but are are the prices of these Sun NVRAM timer chips
these days? I am looking for a replacement
for the old SG Thompson M48T02 chip. Here in France they are on the
order of $45-50!! What has happened
to last year's $20-28 ? Are the Dallas chips identical to the ST ones,
as concerns a Sun?
--Ralph
--
Dr. Ralph P. Sobek Disclaimer: The above ruminations are my
own.
Ralph.Sobek @ irit.fr
sobek @ irit.fr
http://beeline.to/genealogy/
Ph:(+33)[0]561556356 FAX:(+33)[0]561556847
http://www.irit.fr/~Ralph.Sobek/
===============================================================================
Estimates are that one-third to two-thirds of animal and plant species will
disappear in forseeable future! AWFUL!
SPAMMERS Beware:
http://www.irit.fr/~Ralph.Sobek/welcome.shtml#Mail-Warning
--------------------------------------------------------------------------------
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com
My, this is certainly interesting, Hungary produced minis (mainly DEC clones,
but developments of their own as well) for twenty years:
http://www.telnet.hu/hamster/tpa/e_index.html
I particularly recommend that you have a look at the Quadro, it is such a
beaut!
--
En ligne avec Thor 2.6a.
I installed 7.6.1 on my Color Classic too. It has 6mb ram now, and no FPU
yet. Things really slowed down when I installed the Appearance extention and
control panel. But now the GUI is OS8ish! ;) That little creep is so cute,
I'll probably leave instructions to have it made my urn. It'll hold my ashes,
and still continue to function as a computer ;)
iVan
5 to 6 ISA 3COM Ethernet cards
1 EPP Parallel Port ISA card (Brand New, never opened)
5-1/4 inch drive & 3-1/2 inch drive
If not claimed, out to the dumpster it goes. Shipping/Pickup from Long
Island, NY
Ram
--
,,,,
/'^'\
( o o )
-oOOO--(_)--OOOo-------------------------------------
| Ram Meenakshisundaram |
| Senior Software Engineer |
| OpenLink Financial Inc |
| .oooO Phone: (516) 227-6600 x267 |
| ( ) Oooo. Email: rmeenaks(a)olf.com |
---\ (----( )--------------------------------------
\_) ) /
(_/
hey do you have any ideas about using relays or some thing connected to a parallel or aerial port to control the power to an outlet, you know like a dimmer switch controlling motors ETC
if you have any thought or ideas I'd be glad to hear them.
On Jun 11, 15:03, Marvin wrote:
>
> I would like to be able to schedule a web browser to go to a site,
capture
> the page,
> and save it to a file automatically once an hour. Off hand, I don't of
> anything that will do this; any ideas? Thanks.
Use 'wget' in a 'cron' or 'at' script.
--
Pete Peter Turnbull
Network Manager
University of York
Hi Everyone, on my wish list is a KA694. This was the CPU in the VAX
4000/705a and is basically the fastest Q-bus enabled VAX you could buy. It
bookmarks the series (which starts with the MicroVAX I).
I've got other VAXen I could trade for it including 4000/200 or a VLC or a
3800, etc. So if you are looking to round out your collection here's your
chance! :-)
--Chuck
Hi,
I am sorry if some of you guys missed out on the recent transputer stuff
I gave away. In a month or so, I will be in London picking up 3 large
boxes
of transputer stuff (including an original mint condition IMSB001 in its
original INMOS blue bag!). Due to my limited space, I will be giving
away
any duplicate books, software, etc to anyone who wants it. In the near
future,
I will also be cleaning out a warehouse full of transputer stuff (or
whatever is
left of it), so whatever I dont need, I'll definitely pass it along
FREE OF CHARGE.
I just dont have the heart to throw this out and I just cant get myself
to post this on
ebay especially when good people have donated all this equipment for
free. I only ask
that whoever wants this, just limit yourselves to *ONLY ONE* piece of
equipment
so that we have enough for everyone....
Cheers,
Ram
--
,,,,
/'^'\
( o o )
-oOOO--(_)--OOOo-------------------------------------
| Ram Meenakshisundaram |
| Senior Software Engineer |
| OpenLink Financial Inc |
| .oooO Phone: (516) 227-6600 x267 |
| ( ) Oooo. Email: rmeenaks(a)olf.com |
---\ (----( )--------------------------------------
\_) ) /
(_/
I seem to remember that the people at the Gutenberg Project have scanned
over 3000 books and made them electronically available, I know they have
done a set of encyclopaedias also. I bet then know about scanning books and
documents. Maybe they have a FAQ.
http://promo.net/pg/
Mike
mmcfadden(a)cmh.edu
All,
I think I can finally report what was causing my intermittent NeXT
cube "unexpected kernel page fault" crashes. Up-time is now over 240 hours
and counting.
The problems were heat, and bad ventilation. The short story is, I
had the fan reversed (to blow into the cube) and had a very leaky enclosure
as the first step on the cooling air path. This was due my installation of
a floppy drive looking out through an optical-drive-sized aperture in the
front of the cube.
Clue for NeXT cube owners: seal up unused apertures and air leaks
in the front of the cube. The air needs to go into the drive bay, down into
the power supply, out into the motherboard bays, then out the bottom of the
machine.
In my case, sealing apertures alone didn't do it - I ended up
putting the fan back to its original flow direction (exhausting from the
cube, so that the CPU board gets the cool air *first* as it is pulled in
>from under the cube, rather than last as it goes out via the power supply).
I also sealed up the optical and floppy apertures completely, using blocks
of black foam rubber (which I'll pull temporarily in order to use the
drives as needed). This may eventually cause trouble with the optical or
floppy, YMMV and I don't have any long-term experience with it. I'm hoping
it will minimize dust build-up in the optical, which is the original
well-known reason for reversing the fan.
Hope this is helpful, and many thanks to the list members that
helped me with hard drives, parts, etc. The "long story" of all the stuff I
tried and why I tried it is available on request, for the next few weeks at
any rate (until my WORN cranial storage system has purged the details....).
- Mark
I got a set of CSA TEK Manuals for anyone who is either
willing pickup or ship from Long Island. All the books are
in mint condition and never been opened. These books are
very difficult to come by (especially the transputer assembly
language book)....
Ram
> > Anyone interested in a HP 97 Calculator for the price of shipping?
> > Comes complete with wall-wart, and a (probably tired) but still usable
> > battery.
Sellam is the winner of the HP 97 Calculator by a margin of about
5-hours. Nightowl! Thanks for all of your responses.
- don
Sellam, you are still on Rosewood?
Hi,
I have recently acquired an old AS/400 terminal keyboard in (apparently)
working condition.
The pinout on the keyboard, while 5 pins and the same size as an AT
connector, has the pins misplaced, so as not to plug into an AT jack.
I'm just curious if anyone has dones this sort of thing before
(i.e. plugging an AS/400 terminal keyboard into a PC). I'm on the
verge of Visiting Radioshack, however I have no information as to the
functioning of this keyboard.
Any information that I can find would be most appreciated (as I *love*
how this keyboard feels, and desperately want to use it :).
--
Ian Warford / iwarford(a)home.com
When I consider the small span of my life absorbed in the eternity
of all time, or the small part of space which I can touch or see
engulfed by the infinite immensity of spaces that I know not and
that know me not, I am frightened and astonished to see myself here
instead of there... now instead of then. -"-,_,-"- Blaise Pascal
> On 23 Jun 2001, Iggy Drougge wrote:
>
> > BTW, a while ago I looked at a very old 3Com full-length card. The PCB
> > was a rich blue, much like the 3C501, but that's a small eight-bit ISA
> > card, this one was full-length. For some reason the seller thought he
> > could ask more for this card than the 3C509s of another seller, so I
> > skipped them. Otherwise, they would have been a nice curiosity.
>
> Chances are good that these were 3C505 cards, which you need to make an
> ISA-bus Apollo workstation speak ethernet.
>
> Better still if they had the boot ROMs on them, which would have made them
> real Apollo parts and thus capable of netbooting same.
As I told Ethan, I don't need them now, but I'd rather have more
than see them in a landfill. OTOH, mine work, and have ROMs, so
I can dupe the ROMs should anyone need a working Apollo 3c505 ROM.
Regards,
-doug q
Interesting snail-mail postal spammer tidbits.
My mother is a big enemy of regular snail-mail SPAM, she usually sends back
the postage prepaid envelopes taped to all of the paper mail it came with.
I believe that the postal service collects a fee for processing the prepaid
envelopes on top of the postage. The only reason the SPAMMERS like it is
that they normally only pay postage on the recipients that show some
interest. If they get alot back that cost them they loose money. Maybe she
should tape the postage prepaid envelope to a brick and return it.
Mike
mmcfadden(a)cmh.edu
Hi Bill.
I have scanned some Field Maintenance Print Sets.
I have done them in 600 dpi. When I print the file
to ledger (or A3 here in Europe) the copy sometimes
turns out better than the original.
- white paper
- high contrast b/w
- at 600 dpi, the pin numbers of the IC's are clear to read
I must agree that downloading these files is a bit of a pain in ...
But many of these scans fit on a single CD-ROM.
So, perhaps some sort of distribution scheme can be started?
I do not have the disk space accessable to the Internet to host
all these files, and found Chris Kennedy so kind to do that for me.
You may link to them from decdocs.org as far as that concerns me,
but if many downloads start, perhaps Chris is less happy with the
bandwidth? Anyway, this is the URL:
http://www.mainecoon.com/classiccmp
success with the big task you are to embark on,
Henk.
> -----Original Message-----
> From: Bill Bradford [mailto:mrbill@mrbill.net]
> Sent: zaterdag 23 juni 2001 6:04
> To: classiccmp(a)classiccmp.org
> Subject: Re: preserving / ressurecting old docs?
>
>
> On Fri, Jun 22, 2001 at 11:20:44PM -0400, David Gesswein wrote:
> > My scans (and other peoples)
> > http://www.pdp8.net/query_docs/query.shtml
>
> Thanks for the tips. Looks like you've already done quite a
> few of the
> handbooks that I have - which will save some work. I'll also link to
> your site from decdocs.org if thats okay with you.
>
> Bill
>
> --
> Bill Bradford
> mrbill(a)mrbill.net
> Austin, TX
>
>
Hi everybody,
one of my dad's colleagues presented him with a Sharp PC-4600 Laptop and now
it's my task to get it into "usable" condition. This covers several items:
1. Making the thing mains independent
There was no accu pack inside the box when we got it. It starts up all right
when powered by a wall socket PSU of the recommended voltage (9 V DC), but
for portable use it'd have to have its own power source. What rating should
the cell pack have? Can I still get an original one or do I have to build my
own from several cells?
2. Providing mass storage
The computer is equipped with two 720k 3.5" disk drives. Is it possible to
upgrade to a 1.44MB drive and/or to install a hard disk? Where would the
latter one connect? (There are several unused connectors inside and I've also seen
a solder type jumper with the letters FDD/HDD on the PCB, so there should be
a way...)
3. Getting the keyboard to work properly
There is a keyboard problem. One key press ends up with two characters being
entered (always the same for each key), as there are:
key cap results
german without with
german driver
Esc 8\ 8\
F6 ^Z ^Z
F7 ^@ ^@
1 91 91
2 02 02
3 -3 ?3
4 =4 ?4
5 <del> 5 <del> 5
6 <tab> 6 <tab> 6
7 q7 q7
8 8\ 8\
9 91 91
0 02 02
? -3 ?3
? =4 ?4
<del> <del> 5 <del> 5
<tab> <tab> 6 <tab> 6
q q7 q7
I've already unplugged and reseated the keyboard connector. Anybody already
encountered and successfully repaired this?
The machine has the german QWERTZ keyboard layout so I've also tried
installing a german MSDOS keyboard driver, but when it's installed, from the first
keypress on as long as nothing is being entered, the machine continuously
produces short beeps (about 2/sec) which get on your nerves in very short time.
Is there a (perhaps Sharp-specific) driver that will not cause this problem?
I hope than somebody out there can help me. Many thanx in advance
Arno Kletzander
P.S. I'm on the digest only, so answers will take about one day...
--
GMX - Die Kommunikationsplattform im Internet.
http://www.gmx.net
--
GMX Tipp:
Machen Sie Ihr Hobby zu Geld bei unserem Partner 1&1!
http://profiseller.de/info/index.php3?ac=OM.PS.PS003K00596T0409a
I have a Compaq Portable 386...
Classically speaking... what is best to do in the cases below?
1)I am running dos 6.12, but I am thinking about re-installing with
DOS 4 or DOS 5.
Or more generally is it better to use a circa operating system or a modern operating system (Assuming the machine will run both) ?
2) The machine came with a 5 1/4" diskette drive, I am considering replacing that with a 3 and a whatever" drive, or once again more generally when one has an older machine is it good to upgrade the hardware to make it more usefull.
I suppose on my single machine no one cares really, the "historical Police" will not appear at my doorstep.
Let us extend the argument, Given a running PDP/11, what of the person who installs a current day 60GB disk drive and DVD CD ROM?
Curious in San Jose.
BTW I have two of these portables and recently offered one in trade for a part, I am also willing to sell for cheap.
_______________________________________________________
In a message dated 6/22/01 2:44:38 PM Eastern Daylight Time,
korpela(a)ellie.ssl.berkeley.edu writes:
<< > i still never got a decision from anyone on these. still interested?
>
I am. I sent a question about what type of hard drives you were interested
in,
but never got a response.
Eric >>
i prefer those IBM black 50pin scsi drives although anything comparable is
fine. 1-2G capacity is acceptable.
--
DB Young Team OS/2
old computers, hot rod pinto and more at:
www.nothingtodo.org
Hi Folks,
I gather nobody's interested in saving one of these pretty smart 80186 based
machines? I certainly haven't got room for 3 of 'em......
cheers
adrian/witchy
www.binarydinosaurs.co.uk - the Online Computer Museum
0:OK, 0:1
I was having an important conversation with Will, but he seems to have
disappeared from the net. Does anyone on the list know his status?
Thanks.
--
Jeffrey S. Sharp
jss(a)ou.edu
>Date: Fri, 22 Jun 2001 01:25:45 -0500
>From: Bill Bradford <mrbill(a)mrbill.net>
>...
>Some of the pages are starting to come unglued, and I'd like to
>avoid destroying the book while archiving it. Any suggestions on
>what to use to re-glue the pages, or rebinding, etc?
>
>Bill
Check out http://www.brodart.com Pretty sure what you want is there,
possibly cat # 40415001 (or -002, -003, -004), Brodart Acid-Free Bind-Art
Adhesive. You may do better to just request a catalog, the website is a bit
unwieldy.
- Mark
**WARNING**
Possible humor or not! :)
I thought that the FCC was being outsourced to the lowest bidder and that it
was a company in former Yugoslavia that was a large campaign contributor.
Mike
mmcfadden(a)cmh.edu
Does anyone need a DECrepeater 90C? I have one that
I'll give to anyone for the price of shipping. There
is no power supply, and I don't know if it works, and
I don't even know what it does, but my best guess is
it is for linking together thinwire network devices.
--
Eric Dittman
dittman(a)dittman.net
In a message dated 6/23/01 10:34:27 PM Pacific Daylight Time, donm(a)cts.com
writes:
> Anyone interested in a HP 97 Calculator for the price of shipping?
> Comes complete with wall-wart, and a (probably tired) but still usable
> battery.
>
> Can't tell you for sure how it works as my direct Polish notation
> doesn't seem to impress the reverse machine. I do think that the paper
> tape drive has problems, though.
>
> Email me of list if you are interested. First come first served.
>
> - don
>
Hi Don;
I am interested if it hasn't been spoken for. My off line email address is
Whoagiii(a)aol.com.
thanks for offering.
Paxton
Astoria, Oregon
Hey folks, I've come to the conclusion that I no longer have the time to
properly maintain the the retroarchive.org site. I need someone that's
willing to take it over and host it. The archive is roughly 650MB in
size.
If you're interested, please contact me off the list at
geneb(a)deltasoft.com
Thanks for your time.
g.
Anyone interested in a HP 97 Calculator for the price of shipping?
Comes complete with wall-wart, and a (probably tired) but still usable
battery.
Can't tell you for sure how it works as my direct Polish notation
doesn't seem to impress the reverse machine. I do think that the paper
tape drive has problems, though.
Email me of list if you are interested. First come first served.
- don
Picked up a LOBO systems MAX-80 today at a Goodwill for $3.99, no drives
or monitor was with it. I will be going back on Sunday to see if they
have more. Looked it up on the web using google and found that it is a
TRS-80 clone and runs CPM. If I can locate some drives and software I
hope can fire it up soon.
Bill Bradford <mrbill(a)mrbill.net> wrote:
> I'm scanning them in as 100dpi grayscale GIFs, then I will convert to
> other format(s) and eventually to PDF. Scanning directly to PDF with
> HP's software produces horrible output with compression artifacts.
HP's software? The stuff that came with my 6200 was disappointing: I
either got very lossy JPEGs or insufficiently-colorful GIFs out of it.
I installed FreeBSD, SANE, and the GIMP and was much happier.
-Frank McConnell
At the usergroup, there is a DECstation 3100 and a load of ULTRIX cartridges
(I presume these are TK50, they are of the very square kind), some of which
are marked "RISC". I'd like to install these onto the DECstation, but
unfortunately we no longer have a SCSI TK50 drive (what did they call it now,
a TZ30?), so I have no real idea as to how to install it. Not that I would
have any such idea if we had the drive still, either.
However, there is a MVAX IIGPX system there as well, running NetBSD, which has
got a TK50 (I think this is a real TK50, since it's connected to a QBUS card
of its own). Could the DECstation somehow be coerced into installing off of
the MicroVAX?
--
En ligne avec Thor 2.6a.
>BTW, MOST of the SPAM that I receive does NOT show more than one address
>in the header by the time that it gets here. Perhaps some of the SPAM is
>being done with a script just like the one that Richard would write?
>I think that we can assume that Richard has not been writing scripts for
>them.
The ones that really piss me off are the ones that arrive showing my
name in the FROM: block
Jeff
Ok, I'm a happy VAXherd. I scored a 4000/200 in a BA215 cabinet (baby
BA213) and it has the CQD-223/TM SCSI interface, 32MB of ram, and the
COOLEST little three drive storage works box with a flip up lid. Yummy!
--Chuck
Jeff Hellige and I just finished about a 5 hour working (playing?)
session on our
SWTPC 6809 systems. His system works great but lacked disk drives. We
did manage
to boot Smoke Signal Broadcasting DOS on his machine once we swapped
disk
controller cards and first properly set a couple of baud rate jumpers.
My system had problems booting DOS and then had trouble even running
until I swapped
out the 6809 CPU card with another. I still can't boot DOS however. Both
my CPU cards are missing a 74189 RAM chip, whereas Jeff's has it. It's
not clear that that is the problem,
but is a starting place. I have managed to boot DOS in the past with
this RAM-less scenario, but the system always seems to work sparingly.
Anyway that's a brief recap of today's fun and seemed to be list-worthy
to boot (ah-geez another bad pun :).
Next time we're planning on Osborne's and CP/M.
Eric
It just occurred to me that it should be possible to write OCR software
to read punchcards on your scanner. Not that I have any punchcards
mind you, more of an intellectual exercise, but has anyone written
such a thing?
Also, if you're desperate for a punchcard reader I suspect you could
make an acceptable one with Lego Mindstorms. You'd have to use
one of the popular input multiplexing schemes, and probably program it
in nqc or legos, but it should be possible. Using the RCX's motor
controllers and a couple motors and tires you should even be able to make it
automatic feed. In fact, come to think of it, you SHOULD be able to
build the thing with... lessee. two motors, a couple tires, and the
light sensor. 'course your software on the RCX would have to translate
awhat amounts to the scan of a card into data, but if the sensor is
precise enough to tell holes from chads, I can think of a couple ways to
do this.
--
Jim Strickland
jim(a)DIESPAMMERSCUMcalico.litterbox.com
-----------------------------------------------------------------------
BeOS Powered!
-----------------------------------------------------------------------
Background: The Catweasel ISA floppy disk controller is an add-in card
for the PC ISA bus. It uses specialized hardware, not a standard floppy
disk controller chip, and it can be programmed to read and write just
about any disk format.
I've written a pair of programs for the Catweasel called cw2dmk and dmk2cw.
dmk2cw is new in release 2.0 of the package.
cw2dmk can use a Catweasel ISA to read several kinds of floppy disk, some
of which ordinary PC controllers have trouble with, and save them in the
DMK disk image format. DMK is a format used by the Unix TRS-80 emulator
xtrs and by David Keil's TRS-80 emulator for MS-DOS. cw2dmk does not
just read TRS-80 disks. It can make an exact image of any disk written
using a Western Digital 177x/179x floppy disk controller, a PC-style
NEC765-compatible controller, or a Digital Equipment Corporation RX02
controller.
dmk2cw uses a Catweasel ISA to write any DMK image back to
a real floppy disk. It can handle the same kinds of disks as cw2dmk.
Currently no tools other than TRS-80 emulators and dmk2cw can use disk
images in DMK format, but perhaps more tools will be written in the future.
The ability to read disks with cw2dmk and write out copies with dmk2cw
already provides a useful way of archiving disks from old machines and
making physical copies when needed. A likely future direction for
cw2dmk/dmk2cw is to be able to write/read JV1 and JV3 disk images (these
are other common TRS-80 emulator formats) or raw arrays of sectors, in
cases where the disk can be represented in one of those formats.
The programs are free software, released under the GPL. You can download
the source code and executables for both Linux and MS-DOS from my TRS-80
resources page, http://www.tim-mann.org/trs80resources.html. The MS-DOS
version also runs on Windows 95. Even those who prefer to build their
own sampling hardware instead of buying a Catweasel may find the source
code of some use.
Tim Mann tim.mann(a)compaq.com http://www.tim-mann.org
Compaq Computer Corporation, Systems Research Center, Palo Alto, CA
Nice Find. I had one about 10 years ago. It is an early development system
for 8 bit systems. Supported more than 8080s IIRC. Continue looking for the
Docs and 8" Floppies.
Paxton
Astoria, OR
Has anyone used a PMC MicroMate? It looks like the old Ciarcia SBC180
project with a Z80 processor and a 5-1/4" floppy drive in a single case the
size of an external floppy drive for the TRS80. The processor is claimed to
be a Z8400A with Z8430 and Z8470 support chips. All unfamiliar
identifications to me.
Any thoughts on this beastie?
Rich
Rich Cini
Collector of classic computers
Build Master for the Altair32 Emulation Project
Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/
/************************************************************/
> >The 1200c and 1600c are durable and expensive printers and well worth the
> >cost of even buying the tray kit from HP at list, unlike some of the junker
> >inkjets made by Canon, Epson, Lexmark, etc. The 1200c and 1600c are more in
> >the professional series as well.
>
> Now is the time to buy cartridges too, as MANY big dealers are dumping
> them, and when its gone its gone (at decent prices anyway).
Not a very successful strategy; the ink cartridges for the HP1200C,
HP650c Plotter, HP750c/755CM+, and the black cartridges for the
HP DeskJet 870 & 895 have a limited shelf life.
However, I think you're wrong about these particular cartridges
disappearing from the market any time soon.
YMMV, etc.
-dq
I know its off topic but I know there are a lot
of electronics guru's on the list. I'm looking for
a noise generator to mount in my car to defeat
the "Boom cars" in my neighborhood. The local
thieves(politicians) won't do a thing about it so its
time for war. These thumping car stereo's are not
there for musical enjoyment. They are there to
disturb and upset people period.
Please contact me off list if you have any
creative idea's on this.
Brian.
Brian Roth
Network Services
First Niagara Bank
(716) 625-7500 X2186
Brian.Roth(a)FirstNiagaraBank.com
>
>I agree with Tony here, in that there has to be a valid application for the
>features of email that so many SPAMmers have exploited. However, if you
>want to do away with bulk email, something's got to be done. This means
>somebody, somewhere, will lose. Perhaps, if unsolicited bulk mailings were
>just easier to recognize ...
Since I can't keep SPAM out of my (snail) mailbox and I can't keep SPAM off
of my phone (unsolicited calls), I really don't have any expectations about
keeping it out of my email.
With the costs being so low, I'm surprised we (Internet users) don't get a
whole lot more SPAM.
SteveRob
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com
>
> Does anyone, by any chance, happen to have a copy of the
> 'HARDSAVE' backup
> program, circa 1987?
> I'm hoping that someone here might, from their BBS days, happen to
> stillhave a copy...
>
Can't help sorry, but that reminded me, I'd kill to get my hands on a
copy of BBS-PC! for MS-DOs (not Amiga).
cheers,
BL
----------------
Powered by telstra.com
Just found this new toy, looks impressive!
I know it has it's own version of Basic & this one is intact with it's
serial cable & a collection of cards inside (if I can figure out how to
open it, I'll post what they are).
A couple of questions: What can I do with it? Is the serial cable
straight through or null modem? Can I connect it to one of my modern
PC's ? Where can I find info on this beast ? (alright, *4* questions
then....)
BL
----------------
Powered by telstra.com
Pardon me if I missed someone raising this issue yesterday, but
if you're scanning grey level images, it might be worth seeing
what happens if you raise the resolution and switch from
grey level to black & white (line art) scans -- one
bit per pixel. Then you can raise the resolution from 100x100 to
300x300 (9 times the pixels) , and end up with only a 12%
increase in filesize. Photos & halftoned images don't suffer
this well, but the text and line art will be much better off.
This requires you to take some care setting the contrast
and black level when preparing to scan, though.
Alternately you could scan at 300x300 greyscale (8 bits per pixel )
and run the pages through a filter to reduce the bit depth
>from 8 to say 2 or 3. This would only be feasible if you could
automate that process, though.
Before embarking on this huge project, it might be worth
trying a few different techniques to obtain sharper images while
keeping the file sizes reasonable.
Brian
On Thu, 21 Jun 2001 23:31:21 -0400 (EDT) "R. D. Davis" <rdd(a)smart.net>
writes:
> On Thu, 21 Jun 2001, Lanny Cox wrote:
> > As a fan of fairly loud music, i think the idea of setting off car
> alarms is
> > much more interesting. :-)
>
> Funny that you should mention that. Interestingly, it's a
> relatively
> common occurance that when I start my engine when parked next to an
> alarmed car, the alarm goes off. :-)
Yeh, those 3/4-race cams and headers have this tendancy to do that . . .
________________________________________________________________
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Under Bill s.1618 TITLE III passed by the 105th U.S. Congress this letter is not
considered "spam" as long as we include: 1) contact information and, 2) the way to be
removed from future mailings (see below). To Remove Yourself From This List: Please
email to jk72jk72(a)yahoo.com with the email address that you would like removed and
the word REMOVE in the subject heading.
Hi all...
I just discovered, out in our dusty storage area, a TI 8002A microprocessor.
It consists of three units, a main processor with several switches and two
boxes with 2 8" floppy drives in each. The main unit has an EPROM
programming socket on the front, and according to the boss it was apparently
meant for 8080 RTU system development.
Anybody know anything about these beasties?
Joel A. Weder
jweder(a)telusplanet.net
403-556-4020
blacklord <blacklord(a)telstra.com> wrote:
> I know it has it's own version of Basic & this one is intact with it's
> serial cable & a collection of cards inside (if I can figure out how to
> open it, I'll post what they are).
Oh yeah, how to open it:
The terminal is sort of a clamshell design, with the CRT and its
supporting circuitry in the top half, and the power supply and
most of the smarts in the bottom half. The clamshell is hinged at
the back.
Along each of the left and right sides, there's sort of a horizontal
slot where the halves of the clamshell meet. Inside this slot, about
3/4 of the way toward the front, is a vertical slot. You need to find
something skinny, stiff, and flat, and push it into that vertical
slot. What you're really trying to push is a catch that's just inside
the slot on the top half of the clamshell. When you release both
catches the top half of the clamshell should lift up from the front.
If you have the manuals there may be a little manila envelope with
them containing two flat metal "keys". They're the doohickeys that
you're supposed to use to open the terminal.
-Frank McConnell
Great stories and suggestions but I like Marvins transmitter
idea the best. My son and I will work on it this weekend. He
has a big sound tube in his car. Since he was raised to respect
other peoples rights he just uses it to enhance the quality of
sound in his car. Now it will be our laboratory.
I had an idiot behind me halfway to work today. He just looked
around to see who he was pissing off as he drove.
I can't wait to get a working prototype.
For all those that think I am a sound prude, I am not. Music is
my second life. I play guitar and listen to everything from the
LA guitar quartet to Social Distortion. I like to listen to my
music but I don't feel I should make others listen to it
against their will.
Let the jamming begin.....
Brian.
Brian Roth
Network Services
First Niagara Bank
(716) 625-7500 X2186
Brian.Roth(a)FirstNiagaraBank.com
I have a bunch of these too, but they're NOS.
I got read/write heads even, plus the service
manual/docs.
They're for the CDC 'Phoenix' class drives.
I'm gonna have to melt 'em if nobody wants 'em.
Jeff
On Tue, 5 Jun 2001 16:23:26 -0400 (EDT) "R. D. Davis" <rdd(a)smart.net>
writes:
>
> In the spirit of avoiding E-bay, I'm offering a stack of CDC
> controller boards scavenged from three or four washing-machine sized
> drives that a former employer scrapped.
>
> Note: These boards were in the trunk of my car while it sat for a
> few
> months and mice got inside, so they'll need to be cleaned up a bit.
> Still, it would be a sham to see them go to waste. I haven't space
> for them. Any takers? (locally preferred, but I can ship them)
>
> --
> Copyright (C) 2001 R. D. Davis The difference between humans & other
> animals:
> All Rights Reserved an unnatural belief that we're above
> Nature &
> rdd(a)perqlogic.com 410-744-4900 her other creatures, using dogma to
> justify such
> http://www.perqlogic.com/rdd beliefs and to justify much human
> cruelty.
>
________________________________________________________________
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From: Bill Bradford <mrbill(a)mrbill.net>
>I'm scanning them in as 100dpi grayscale GIFs, then I will convert to
>other format(s) and eventually to PDF. Scanning directly to PDF with
>HP's software produces horrible output with compression artifacts.
I would really recommend higher resolution. 100 DPI is the lowest
resolution fax quality. Being grey scale will help readability on
the screen but printing probably won't work well on most printers.
I recommend 300 DPI black and white (line art) minimum for most of the
pages. For the pictures a grey scale scan makes the pictures better and if
you have software which allows mixing them that would work well and
allow for the smallest file size. The black and white compress well when
you use group 4 tiff. PDF also supports that compression format which
is how I do the on the fly conversion to PDF on my site, it just adds
PDF wrapper to the tiff. For smallest size the tiff should be singe
strip. You will need to adjust the threshold setting for best results.
Also when you are looking at artifacts from grey scale scanning view at
1:1 scale so you aren't seeing the artifacts from the rescaling to
screen resolution. It can make it look much worse than the scanned
artifacts from the screen printing actually are.
Since what I am using doesn't allow mixing I have just been doing the
black and white scans and seperatly storing grey scale scans for future.
I have also switched to doing the scans at 600 DPI for best quality and
making 300 DPI copies available for people with slower links. Hopefully
these will be around to when the size doesn't matter.
I did the cut the pages out of the binding for the handbook I scanned
since it was falling apart. I have found that I can't get good scans
on my scanner otherwise since the pages are still too bent so the scans
are warped.
I know that this is a lot of personal preferences and their isn't one
best way. Email me if you wish any more information on how I have been
scanning.
My scans (and other peoples)
http://www.pdp8.net/query_docs/query.shtml
Large disk support == LBA translation (i.e., single hard disk partitions
over 524mb in size).
==========================
Richard A. Cini, Jr.
Congress Financial Corporation
1133 Avenue of the Americas
30th Floor
New York, NY 10036
(212) 545-4402
(212) 840-6259 (facsimile)
-----Original Message-----
From: SUPRDAVE(a)aol.com [mailto:SUPRDAVE@aol.com]
Sent: Friday, June 22, 2001 1:53 PM
To: classiccmp(a)classiccmp.org
Subject: Re: MS-DOS version (was: What's best to do?? classically
speaking
large disk support?? dos has supported partitions over 32meg since at least
3.3 hasnt it? I think version 6 had Antivirus support and dos 5 was the last
version you could install on a set of floppies (or at least the setup
program
would let you)
In a message dated 6/22/01 12:37:07 PM Central Daylight Time,
RCini(a)congressfinancial.com writes:
<< DOS5 == DOS6 differences:
SmartDrive disk cache
Boot menus
"Large disk" support in FDISK
Drive compression
That's what I can come up with without looking. How far off am I? >>
Hi:
I came across a Z80 card in my box of random Apple ][ expansion cards. What
software was used with this card? Was there a special boot dist to activate
it?
Rich
Rich Cini
Collector of classic computers
Build Master for the Altair32 Emulation Project
Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/
/************************************************************/
blacklord <blacklord(a)telstra.com> wrote:
> A couple of questions: What can I do with it? Is the serial cable
> straight through or null modem? Can I connect it to one of my modern
> PC's ? Where can I find info on this beast ? (alright, *4* questions
> then....)
HP offered several serial cables for the 264X terminal, but if it's
got a DB25 plug then there is a good chance that it wants to be
plugged into a modem or other DCE-pinout device. That means you will
need a null-modem cable to plug it into an IBM PC serial port.
-Frank McConnell
On Jun 22, 7:47, Sellam Ismail wrote:
> On Fri, 22 Jun 2001, Ethan Dicks wrote:
>
> > Talk to Doug Jones. He recommends dismantling the book carefully
> > for the best quality copies/scans.
> I completely recommend AGAINST destroying the original. Not only is it
in
> some cases a historical artifact on its own, if the digital copy were
ever
> to be lost then you're SOL.
I too was going to suggest Doug Jones, but Ethan beat me to it. however,
if you read Doug's pages, you'll see he thought carefully about this,
consulted conservators, and actually describes very carefully how and why
to minimise the historical loss.
http://www.cs.uiowa.edu/~jones/book/index.html
--
Pete Peter Turnbull
Network Manager
University of York
Does anyone know where to find a punched card reader
these days? I'm looking for a small desktop unit that
I could interface to a PC.
I know DEC sold a model CR11, and there were others
out there. I remember using some neat little card
readers that were stationed here and there on campus
at UC Berkeley in the 70's for remote job entry to
the CDC-6400 (and if I remember correctly they had a
DG Nova underneath).
Are there any of these out there, that I could
take, borrow, or buy? I'll be starting an IBM
1130 software archiving project later this summer.
(I did a google search and about all I found were
requests just like this one, from the classiccmp
archives. Hmm. And there's one place that'll rent you
a desktop reader for $1500/month).
Thanks,
Brian
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
_| _| _| Brian Knittel / Quarterbyte Systems, Inc.
_| _| _| Tel: 1-510-559-7930 Fax: 1-510-525-6889
_| _| _| Email: brian(a)quarterbyte.com
_| _| _| http://www.quarterbyte.com
DOS5 == DOS6 differences:
SmartDrive disk cache
Boot menus
"Large disk" support in FDISK
Drive compression
That's what I can come up with without looking. How far off am I?
==========================
Richard A. Cini, Jr.
Congress Financial Corporation
1133 Avenue of the Americas
30th Floor
New York, NY 10036
(212) 545-4402
(212) 840-6259 (facsimile)
-----Original Message-----
From: Fred Cisin (XenoSoft) [mailto:cisin@xenosoft.com]
Sent: Friday, June 22, 2001 12:40 PM
To: classiccmp(a)classiccmp.org
Subject: MS-DOS version (was: What's best to do?? classically speaking
On Fri, 22 Jun 2001, Richard Erlacher wrote:
> Yes, Compaq was the source of v3.31. That was, as you point out, an early
> "large"-disk-volume-capable version. I swiped a version from one of the
> Compaq's with which I had frequent contact, and happily used it with ESDI
drives
> for years.
NO, Compaq was NOT "the source of v3.31". They were one of many.
ALL OEMs were offered 3.31. Many did not want to pay the asking price.
Compaq and Zenith were the most notable ones who did.
There are minor differences in MODE.COM, IO.SYS, FORMAT.COM, and a few
other files from one OEM's version to the next. 1.25?, 2.11, and 3.31 are
the OEM versions that were most commonly customized, with changes such as
support for 720K 5.25", 720K 3.5" (same, but a few messages altered),
internal/external video, ... Whenever using 1.25, 2.11, or 3.31, ALWAYS
keep track, AND IDENTIFY, which OEM it was. The customizations were
different from one OEM to the next.
Prior to 5.00, MS-DOS was, IN THEORY, available only from OEMs. Yes,
there was such a giant gray market that nobody noticed the restriction.
There appears to have been a 10 year non-competition contract between
MICROS~1 and IBM, wherein MICROS~1 could sell to OEMs, but could not sell
DOS as a retail product. 5.00 was the first version where DOS was
available legitimately as a retail product. It was "NEW and IMPROVED!"
The "NEW and IMPROVED" consisted mostly of bug fixes to 4.00, plus
availability from MICROS~1.
NOTE: 5.00 has met the 10 year rule for over a month now. Windoze 3.10
has 2 more months to go, even for BETA.
OB_OT: NOT COUNTING bundling of additonal [third party] programs, who can
name what the differences are between 5.00 and 6.00?
--
Grumpy Ol' Fred cisin(a)xenosoft.com
More finds:
1. Compaq LTE in great shape
2. IBM ext SCSI cdrom drive type 7210
3. Atari SC1224 ver2 monitor
4. IBM PC Color display model 5153
5. ATARI mouse model STM1
6. Valiant MKII robot turtle for the Apple II, got the software and
warranty card but cables or manuals.
7. The other items are too new to list yet.
Keep computing John
Upper limit -- isn't it still 2gb per partition unless special disk manager
software is installed? NT has no restriction theoretically.
==========================
Richard A. Cini, Jr.
Congress Financial Corporation
1133 Avenue of the Americas
30th Floor
New York, NY 10036
(212) 545-4402
(212) 840-6259 (facsimile)
-----Original Message-----
From: Fred Cisin (XenoSoft) [mailto:cisin@xenosoft.com]
Sent: Friday, June 22, 2001 2:49 PM
To: 'classiccmp(a)classiccmp.org'
Subject: RE: MS-DOS version (was: What's best to do?? classically
speaking
On Fri, 22 Jun 2001, Cini, Richard wrote:
> Large disk support == LBA translation (i.e., single hard disk partitions
> over 524mb in size).
Thank you
The phrase "large disk support" will always carry some confusion due to
it's RELATIVE nature. 32M, ~500M, 8G, ... What is the current limit?
My first msg hasn't come through yet, so I am resending it.
Sorry if the first one does show up.
-----------------------------------------------------------------------
At 04:52 PM 6/21/01 -0700, Chris wrote:
>The big problem is power density -- these things only have to provide
>cancellation in the confines of a headset ear cup. Cancellation in the
>large would obviously require much higher power levels.
It is actually more complicated. The dynamics of the room would have to
be accounted for, which makes it many times more difficult than
in the headset case. Also, to be able to cancel the noise in several
directions you need more drivers and mikes.
I once toyed with the idea of a feedback-controlled stereo system
to completely elliminate the dynamics of your listening room and
hear those of the recording hall, for example. The idea was:
when you record, you place mikes separated 3-4" apart in one of
the audience chairs, mimicking the directionality of human ears
mounted on a cranium :-) . In fact, you install several such sets
of mikes, all with a slightly different orientation wrt sound source.
Then, at home, you put on a headset
that doesn't cover your ears, but it has a second set of mikes
like the ones used for recording, and some orientation sensing
device. The stereo/DSP's job is the following: to project
on your headset's mikes sound waves that produce identical local
pressure at your ears (feedback control ideas would be used) to
those that were received at the recording hall by the set of mikes
that most closely matches your current head position.
Voila`, Panoramic Sound.
The algorithms for doing this exist already, and, while slightly
complicated for the ocasional home stereo hobbyist, they
are within the grasp of any grad student in the control/DSP/cancellation
field. They involve the estimation of the reproduction room's
characteristics, feedback control and active cancellation ideas.
Somebody must be developing this exact idea somewhere. It is
just a logical step given the state of DSP and active cancellation
technology.
Carlos.
--------------------------------------------------------------
Carlos E. Murillo-Sanchez carlos_murillo(a)nospammers.ieee.org