I have been shopping at fry's for almost 10 years
when I used to live in the Bay Area only 2 miles
>from the Camino Real store, and also when visiting
towns that have one near where I'm traveling. The
purchasing experience at Fry's is really about a
8-9, if you don't need help. If however you do
in a purchase or return, then the experience goes
down to about a 2-3. It really is that simple. I
go there, well educated on what I want, I don't
have expectations of service (shameful that the world
retail experience is pretty much like this, even
Nordstroms is rather saddening these days) and I
don't waste my time buying anything that has a
reputation of bad quality. In other words, do your
own research and extensive reading online before you
go buy from Fry's. Oh, and if you get that far, you
may as well check out www.pricewatch.com and other
online street pricing systems, and buy online to save
yourself the 30 minutes or more round trip drive and
waiting in lines.
Alltronics (http://www.alltronics.com/computer_miscellaneous.htm) has a video-composite adaptor for $5:
<quote>
TTL TO COMPOSITE VIDEO ADAPTER
Requires +12V (or +5V) and video, vertical drive, horizontal drive signals. Produces RS-170 type composite video output. Fully assembled with 74125 sync regenerator, 3 terminal regulator, 2N2222 transistor. Only 2" square.
92C024 $4.95 each
</quote>
It looks like the adaptor I used to have for my Osborne 1.
Bob
-----Original Message-----
From: Hans Franke [mailto:Hans.Franke@mch20.sbs.de]
Sent: Tuesday, July 01, 2003 2:50 AM
To: cctalk(a)classiccmp.org
Subject: Re: Modifying a B&W TV for composite video input
> > I would think the easiest and cheapest way is to use a plain old RF
> > modulator box that will put composite video on to channel 3 or 4. I've
> > taken apart one or two and they seem to have little more than a few
> > coils and small parts, a far cry from the rack mounted cable TV
> > modulators I just picked up(ooohh... so many trimmer caps and
> > coils...). I don't know a whole lot about it, but I'm slowly learning
> > as my interest in fast scan ATV increases... The converter box I have
> > goes with my TI-99,
> Those little RF boxes don't really convert from composite to RF, they
> just provide a switch and a connection to a TV antenna input.
Communication error!
While you where refering to the common (video game) switch boxes,
John did mention modulators! they are usualy the same size (ok,
the TI one is a true brick), but do what they are named, modulate
the composite signal onto a TV carrier.
The one I like most is the Amiga 520 (?).
Gruss
H.
--
VCF Europa 5.0 am 01./02. Mai 2004 in Muenchen
http://www.vcfe.org/
I once bought a PC card modem in a $0.50 Dutch Auction, with $5.00 shipping, but the seller was up front about the modem costing $5.50 with s/h.
-----Original Message-----
From: TeoZ [mailto:teoz@neo.rr.com]
Sent: Tuesday, July 01, 2003 10:57 AM
To: cctalk(a)classiccmp.org
Subject: Re: Well, I was at Fry's in CA...
<snip>
I have found many retro computer bargains on ebay where a large percentage
of the total purchase price was in shipping.
<snip>
>From: "Peter Turnbull" <pete(a)dunnington.u-net.com>
>
>A long-time acquaintance of mine (Graham Toal, whom some of you may
>know) has access to a collection of PDP-8 paper tape which wants
>reading. Unfortunately some of it is in the care of the Royal Musuem
>in Edinburgh, who won't let it out of their sight.
>
>Does anyone -- preferably in the UK -- have a paper tape reader that
>could be hooked up to a modern machine (eg a laptop) to read the tapes
>in the museum, and which they'd be willing to lend?
>
>To see what Graham and friends are doing, take a look at
>http://history.dcs.ed.ac.uk/ It's worth a look even if you're not
>interested in Edinburgh.
>
>I know Graham reads the list, so replies here or to me are fine.
>
>--
>Pete Peter Turnbull
> Network Manager
> University of York
>
Hi
I don't live close enough but it isn't too hard to
connect, even a parallel paper tape reader. I have
one that does folded paper tape that I connected to
my lap top's parallel printer port.
Dwight
>From: "John Willis" <jwillis(a)coherent-logic.com>
>
>Is it still possible to find DSM? Looking to learn the MUMPS language,
>preferably on one of my
>VMS machines.
>
Hi
Also check those at: comp.lang.mumps. So someone i
that group may have something for it.
Dwight
Hi
It is always a fun project to write your own BIOS
and get CPM running on these kinds of machines.
I have brought up CPM on a couple of machines and
find it isn't too hard.
In some cases, I'll put a Forth interpreter on ROM
for that machine. That way I can explore the I/O's
for the machine and debug any assembly code before
I expect it to work with things like booting a CPM
disk.
Dwight
>From: Joe <rigdonj(a)cfl.rr.com>
>
> These sound like standard Mostek STD-BUS cards. The cards were available
>separately so it may or may not be a Mostek computer. As luck would have it
>(your's not mine!) I found some Mostek manuals for some of the cards today
>along with some DRI CPM manuals. I haven't gone trough them yet but I'll
>post a list after I do. BTW Steve Robertson is the expert on STD-BUS
>stuff. He found one of the system developers that used to work for Pro-Log
>and got a TRUCK load of that stuff.
>
> BTW II United Technologies bought out Mostek so Ian's computer could be
>considered a Mostek machine.
>
> Joe
>
>At 07:52 AM 6/27/03 -0400, you wrote:
>>That sounds like an interesting machine. I have a United Technologies
>>Mostek Matrix 800, but it has a 1.2meg 5 1/2 drive and an MFM hard
>>drive. My machine runs CP/M and has a Z-80. I have the system disks,
>>albeit on 5 1/4, and I can make copies for you if you need them, but
>>you'll have to find a way to either convert them to 8" or to hook a 5
>>1/4 drive to the computer, but even then I don't know if the disks
>>would be compatible.
>>
>>Ian Primus
>>ian_primus(a)yahoo.com
>>
>>
>>On Thursday, June 26, 2003, at 10:58 PM, Erik S. Klein wrote:
>>
>>> Hello all,
>>>
>>>
>>>
>>> I've come into possession of a Mostek computer (I'm pretty sure it's a
>>> computer anyway) with a pair of 8" half height floppy drives (Shugart
>>> 860s) and three cards.
>>>
>>>
>>>
>>> The cards are roughly 6x4 inches with a 56 finger edge connector on one
>>> of the long ends and various connectors on the opposite end (I'm not
>>> familiar with these). They are labeled MDX-FLP2 (plugged into the
>>> drives - obviously a floppy controller), MDX-SIO (almost certainly a
>>> serial IO card) and MDX-CPU3. The last card is the processor card.
>>> The
>>> main chip appears to be a MOSTEK Z-80 clone which is labeled MK3801N-4,
>>> Z80-STI AND ENG. PROTO. There are 8 4564s for 64K RAM on the card
>>> along
>>> with what are either connectors for serial and/or parallel ports.
>>>
>>>
>>>
>>> The whole box is about the size of a typical rack-mount machine with a
>>> plastic case around it. Most parts are tagged as Mostek and most date
>>> codes are from the middle of 1982.
>>>
>>>
>>>
>>> Of course it came without software or documentation.
>>>
>>>
>>>
>>> Is anyone familiar with this machine? Does anyone have a boot disk,
>>> other software or documentation for it?
>>>
>>>
>>>
>>> Thanks!
>>>
>>>
>>>
>>> Erik Klein
>>>
>>> www.vintage-computer.com/vcforum
>>>
>>> The Vintage Computer Forum
Someone local is cleaning out their garage. He's
selling off a rather large collection of computer software and
hardware.
The sale started Saturday 28th, and is continuing through to late
Tuesday for the long weekend. Contact and location details are
available at each of the following URLs:
http://www.bjgiles.ca/software_list.htmhttp://www.bjgiles.ca/hardware_list.htm
I can act as a go between if needed.
On Fri, 27 Jun 2003 17:53:29, Joe <rigdonj(a)cfl.rr.com> wrote:
> Visted one of my favorite scrounging places today and found a Otrona
> Attache and a Soroc Terminal (1802 CPU :-) :-) Also got two shugart 851 8"
> floppy drives, an IC Master (1988) a stack of DRI CPM manuals, a DEC PDP-8
> handbook and a notebook full of Mostek computer board manuals. Oh and an
> AIM-65 User's Guide.
Are you sure about the Soroc having an 1802? Which model of Soroc? I
thought Sorocs used z80s. The one sitting next to me here (an IQ-135)
definitely has a z80. It does have a 1602 UART though...
Speaking of which, how many Sorocs are still out there? Were they as
common in the rest of the world as they seemed in my corner of it? I
hardly ever hear of them anymore, even on e-bay.
Bill.
I don't quite understand what copyright (as opposed to patent law)
has to do with his case, but I thought I'd forward this inquiry...
- John
>From: "Advanced Approach" <info(a)advanced-app.com.hk>
>To: <jfoust(a)threedee.com>
>Subject: old hardware help requested
>Date: Sun, 29 Jun 2003 10:51:42 +0800
>
>Dear Mr. Foust:
>
>I am an American living (temporarily) in Hong Kong, I am in a jam here, and
>you might be able to help. I would appreciate a couple of minutes of your
>time ? just enough time to read this. You may be able to tell me what I
>need to know immediately.
>
>I am a defendant in a lawsuit here. In the lawsuit against us, the
>Plaintiffs claim that in the early 1990?s they were the first in the world
>to recess a rocker switch. (Actually, they do not use those exact words;
>rather, they claim they own the copyright on a recessed rocker switch. For
>them to own the copyright, they would have to be the first people in the
>world to put out a product with a recessed switch.)
>
>Of course, their claim is ridiculous, but in court, we have to PROVE it is
>ridiculous -- otherwise, the court will probably accept their claim. To
>disprove their claim, we simply need to find a product with a recessed
>rocker switch that was on the market before 1990. (And of course, we need
>to prove that it was on the market before 1990.)
>
>Friends have told me that recessed rocker switches were common on early
>computers, printers, and mainframe terminals.
>
>Copyright here is all about outlook. Here are two examples of recessed
>rockers switches with the outlook that we need:
>
>The first example:
>http://www.auctionshoppingbot.com/misc/Recessed_Rocker_Switch.html
>
>The above is from a Canon copy machine.
>
>This example shows well all five key elements that we need:
>1) The rocker switch is mounted on a flat surface,
>2) The rocker switch is recessed beneath the surface,
>3) There is flat surface all around the recess,
>4) There is nothing else in the recess with the switch, and
>5) The area of the recess is bigger than the area of the switch but not
>excessively so.
>
>This would be prefect, except the copy machine is only a couple of years
>old ? too new to prove that recessed rocker switches were on the market
>before 1990. (I have contacted Canon, but as a company, it seems they are
>only interested in selling new machines.)
>
>The molded on/off symbols and the indicator light are not important. We are
>looking for an example product with or without the molded on/off symbols and
>the indicator light ? either is fine. For the switch rocker itself, color
>does not matter ? even clear plastic with illumination inside is OK.
>
>The second example:
>http://www.old-computers.com/museum/computer.asp?c=115
>http://www.old-computers.com/museum/photos.asp?t=1&c=115&st=1
>
>DEC 300 series computer from 1979. (On the second link, click on the "close
>up".) This is good, and we might use this. It would be perfect, except the
>Digital logo is right next to the switch (so this example does not meet key
>element #3). So for our purpose, this is only half good.
>
>If you know of any product from 1990 or before that had a recessed rocker
>switch that meets all five key elements, please let me know. As you and
>others you know are knowledgeable about old hardware, any information you
>could provide would be greatly appreciated.
>
>I hope to hear from you.
>
>Thanks,
>
>Rick Graves
>Personal Rick_Graves(a)CompuServe.com
>
>Advanced Approach Ltd.
>1907 Westley Square, 48 Hoi Yuen Road
>Kwun Tong, Kowloon, Hong Kong
>Tel: +852 2372-0197 Fax: +852 2342-7197
>e-mail: info(a)advanced-app.com.hk
i recently came across 2 X1054A SCSI/Ethenet Sbus cards. I am having
trouble finding info about the Ethernet connector. This is not a
standard port configuration. Its quite small (measuring 1/2 wide by 1/4
inch tall) and its *D* in shape. Female.
are there adapters? adapter cables?
I have 2 of these and only need one at present. If anyone is interested
in the other card its free. Just pay shipping. If I cannot use this,
then both are free for shipping.
i also have a sun sparcstation 2 with 425M hd (w/sled), some memory
sticks (one stick is bad for sure) with a dual sbus video card (cg6?),
floppy drive. the NVRAM is bad. i think i have a sun keyboard too. ss2
for $5 and keyboard is $10. plus shipping. this is *as is* no
guarantees.
located in glendale california
jeff duncan
I picked up this huge HP box with half the case(plastics anyway)
missing... I picked it up because it had a DomainRing card and other
Apollo-like ports. I finally figured out it's an HP9000, but I'm not
sure which one yet. The board is labeled A1421-66538. It has a 25MHz
68040 CPU. The HP-IL keyboard port is a neat touch. Does this thing
use a normal VGA monitor? Looks like this one has a tape drive(DC600
tapes like my Apollos?), and two hard drives - one is a freaking big
5.25" FH like my Apollos, the other is HP SureStorageDisk 1000S+ 3.5"
drive. I see 4 ISA slots, one has a DomainRing card. Will the other
Apollo cards work there too? Any pointers to good HP9000 info(I'm
still recovering from hauling this huge box in to do much searching
right now - this thing is bigger and heavier than the Apollos! LOL, I
though nothing could get bigger...)
I think my iMac is intimidated by this huge box towering over it on
the desk now...
--
/------------------------------------\
| http://jrollins.tripod.com/ |
| KD7BCY kd7bcy(a)teleport.com |
\------------------------------------/
Hi All
Another recent addition to my growing collection is, as the title
suggests, an IBM 5285. It has a 12" display and dual 8" floppy drives.
The separate keyboard is connected at the front of the machine by a
large 25 pin connector.
Originally passed to me as "working" the machine fired up to display
what looked like a single ASCII code at the top centre of the screen
and a column of blocks on the far right. The keyboard is laid out very
much like a terminal keyboard and testing the keys the keyboard buffer
quickly becomes full. This results in what looks like a series of
memory addresses along the bottom of the screen.
All the while the two 8" drives are merrily spinning away. I have one
disk with the machine which when inserted in either drive fails to read
or alter the state of the display.
My initial thoughts were faulty connections. I took the covers off to
reveal about a kilo of dust liberally spread around the inside. I
cleaned each component carefully and replaced the boards. Now I don't
get anything on the display and the drives still whirr around oblivious
of disk or no disk...
So... my questions are:
1. Has anyone come across this model before and is it a dumb terminal?
2. What checks would you suggest to solve the disk access problems?
3. Can anyone point me towards a repository of information about it?
Thanks in advance
Alan
Things are really starting to fall into place around here. I got my 3rd
and 4th MDS-800s running today :-) I posted a couple of pictures, there's
no text or links yet but here's the directories.
<http://www.classiccmp.org/hp/mds800_3/>
<http://www.classiccmp.org/hp/mds800_4/>
(Yes those things under the counters are HP 1000s. I have three working
ones so far but only two good power supplies. So far I have FIVE bad power
supplies for them. I'm going to have to sit down and learn how to fix thm
soon.)
Here's a link to pictures and description of my first one.
<http://www.classiccmp.org/hp/mds-800/mds-800.htm>
Got my 3rd Series II machine, a MDS-230, working last week. Tomorrow I
start on MDS-800 numbers 5 and 6. Number 3 and 4 MDS-800s had 8088 and 8086
emulators, the first two had 8080 emulators. I got 8x48/8x49 and 8x51
emulators with the last two MDS-230s and had an 8085 emulator with my
MDS-235. Does anyone have any of the other emulators such as the one for
the 3000 series bit slice processors or the (non-intel) Z-80 emulator? I'm
also looking for a personality card for the 1702 EPROMs for the UPP 103
EPROM programmer.
Joe
Can anyone tell me how to change the settings in a Televideo 970
Terminal? I got into the settings page but I can't figure out how to change
the settings.
Joe
> Lucky you - I have been looking for an SPC-16 for some
> time now. And there's precious little information on
> the web.
I've put a few GA16 document scans up at
www.spies.com/aek/pdf/generalAutomation
Hi,
I know a source for a complete ATW800 in the UK area if anyone is
interested. They are asking 250 UKP for it (Cambridge area). Let me
know, condition is untested. I wish I could go for it, but since I am
across the pond, it is just too costly :-(
Cheers,
Ram
Jason,
You can have the 5250 card if you want. Send me your mailing address and I'll send the card off to you.
Bob
-----Original Message-----
From: Jason McBrien [mailto:jbmcb@hotmail.com]
Sent: Thursday, June 26, 2003 12:01 PM
To: cctalk(a)classiccmp.org
Subject: Re: IBM 5250 Emulation Adaptor
I'll take the 5250 to add to my collection if nobody else has a pressing
need for it.
----- Original Message -----
From: "Feldman, Robert" <Robert_Feldman(a)jdedwards.com>
To: <cctalk(a)classiccmp.org>
Sent: Thursday, June 26, 2003 9:55 AM
Subject: IBM 5250 Emulation Adaptor
> Free for postage:
> 1 IBM 5250 Emulation Adaptor ISA #82G7060
> 1 HP SCSI Adaptor ISA (for Scanjet?) #C1752-66500
>
> I found these half-length ISA cards in the trash on the way to work today
& have no need for them. Each is in a zip-lock bag and looks OK, but is
untested. Postage would be about $2.00 each.
>
> Robert A. Feldman
> robert_feldman(a)jdedwards.com
While working the flea market this weekend a guy selling items near me came
over at the close of business on Sunday and offered me all of this computers
items for free. He told me to just pick out whatever I wanted !!! I ended
up with 7 large boxes of goodies software (Windows ver 1.03 new never opened
box), Apple IIe and related hardware for it, Tandy hardware, printers, and
other items. I have not been able to sort it yet for a full list but will
update everyone after I have a chance later this week. From another dealer
out there I purchased some goodies for the Vic20: 8K Tam memory expansion
cartridge by MSD inc., HesWare 5-cartridge module, Vic-1924 Omega Race
cartridge, Vic-1212 Programmers Aid cartridge, HES C304 HesWriter cartridge,
Vic-1929 Personal Finance, Vic-1920 Pin Ball cartridge. She sold all it to
me for $1.75 :-)
I picked some other game cartridges for other systems for 25 cent each also
and several mousepads. Except for the heat it was a great weekend.
I don't know him, but many users of SIMH would agree to have one
copy of DSM-11 available. Myself one of them, just by the way ;-)
Other old PDP software is welcome too.
Greetings
Sergio
----- Mensaje Original -----
Remitente: Luc Vande Velde <luc(a)e2t.be>
Fecha: Lunes, Junio 30, 2003 8:40 am
Asunto: RE: DSM (digital standard MUMPS)
> If you can read magtape (9track) I can send you the distribution
> tape (a
> copy)
> what I have is the version for PDP11 running native on this
> machines (min.
> 11/40 on UNIBUS; 11/23 on QBUS)
> I don't have VMS versions
>
> gr.
>
> Luc
>
>
> -----Oorspronkelijk bericht-----
> Van: cctech-admin(a)classiccmp.org
> [mailto:cctech-admin@classiccmp.org]Namens John Willis
> Verzonden: vrijdag 27 juni 2003 20:46
> Aan: Cctalk@Classiccmp. Org
> Onderwerp: DSM (digital standard MUMPS)
>
>
> Is it still possible to find DSM? Looking to learn the MUMPS language,
> preferably on one of my
> VMS machines.
I managed to pick up a General Automation SPC-16/40 and SPC-16/45.
Aparently, the /40 needs its power supply to be repaired :(.
Does anyone have info on these things? Searching google doesn't yeild a
whole lot. They've got fairly nice frontpanels, and seem to be 16 bit
machines (and have some _real_ core ;-). I got a disk pack drive to go
with one (Single platter 14" cartridge, a lot like a DEC RL01), but not
too much else.
I'd like to get at least one of them 'set up' to play with.
Oh yeah, if anyone's interested in one, make me an offer. I *might* be
willing to let one go if the price is right.
I also picked up an HP paper tape punch that seems to be in less-than-
working condition, I haven't even checked the fuse yet, so we'll see if I
can get it working. They were even nice enough to leave 1/2 a roll of
blank tape on it.
Now all I need is a paper tape reader and card punch/reader...
Pat
--
Purdue University ITAP/RCS
Information Technology at Purdue
Research Computing and Storage
http://www.itap.purdue.edu/rcs/
Good news from Bryan Mason for those of us interested in the Poqet. The mailing list has not been reactivated yet, but Bryan says he's working on that.
-----Original Message-----
From: Bryan Mason [mailto:bmason@bmason.com]
Sent: Friday, June 27, 2003 5:39 PM
To: poqetpc(a)kogs1.informatik.uni-hamburg.de
Subject: New Web site is active
Hi all,
The new Poqet PC Web site is up and active. The URL is the same as the old
site: <http://www.bmason.com/PoqetPC/>. Be careful of the capitalization
-- it's important.
The DNS entries were changed two days ago, but there may be a chance that
they haven't fully propagated through the 'Net. If you enter the URL above
and still get the old site, try again in 12-24 hours. Eventually, you
should be directed to the new site.
-- Bryan
I can provide you with software (email me your mailing address off-list), but you should contact J.C. Wren to get the email of the fellow in Colorado who has been selling of Otrona parts on eBay. I believe he has manuals.
Bob
p.s., there is an Otrona 2001 on eBay now:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2739274666&category=179
-----Original Message-----
From: Joe [mailto:rigdonj@cfl.rr.com]
Sent: Sunday, June 29, 2003 10:43 AM
To: cctalk(a)classiccmp.org
Subject: otrona parts?
I've been playing with the Otrana Attache that I found last week. Cute
little machine. I think I might hold onto this one for a while but it's
missing some parts. Does anyone have a parts machine or parts that they're
willing to part with? I need the cross bar that runs between the handles,
software disks and manual, hinges for the keyboard and I LIKE to find one
of the 8086 processor cards for it.
FWIW I took it apart and checked it this morning and I noticed something
funny. The no serial number anywhere on the outside of it but inside
EVERYTHING has the serial number on it. The INSIDE of the case, the
monitor, both disk drives, the power supply, the sheet metal, etc are all
numbered 4616 but there's no number anywhere on the outside.
Joe
While away, I popped in a car boot sale, and picked up an Apple Mac LC III
base unit for 50p! Never having had anything to do with macs before, and
only having new PC and old BBC kit about, I'm a bit stuck at first base - I
think I have spotted the video out (15 way D-type, and have seen converters
for them!) but where on earth does one connect a keyboard and mouse?
Internally, it seems like it might be complete: 80Mb SCSI hard disc, one
ram stick (one free slot) 68030 processor (and an empty socket next to
it???) is this right?
I also picked up (also for 50p) a compaq slt/286 laptop (missing keyboard
and PSU) and a Mitec 3030D, also missing PSU. As both of course have flat
batteries, I've not poked at them much yet. If they are of interest to
anybody, drop me a line! (collection/shipping at cost from Salford, UK.)
Rob
I'm new to this fine place, but not so new to retrocomputing... I had a
question... I wonder if any of you know the answer...
I'm trying to relive my misspent youth, spent hacking into the RSTS/E
system at Arizona State Univerisity. I'm trying to set up a system with
RSTS/E v9 and the version of Simh that supports DZ0: (DZ11) devices. (on
http://elvira.stacken.kth.se)
I have no problem building the system from the tapes (images)... that' s
all fine. When you look at the HARDWR LIST (when you don't start
timesharing) it sees the device (DZ0:) --but--
when I try to connect via telnet, I just get
"welcome to the PDP simulator" and then nothing.
I'm assuming that you have to set something, somewhere else, to enable the
device. I've been though loads of RSTS/E manuals, and I can't figure it out.
In my defense, when I was messing about with RSTS/E (and learning to
program and such) I was 12 years old, and didn't have access to the
hardware. I am the proud *owner* of a PDP 11/23, but my evil wife wouldn't
let me transport it to England from Arizona, so it is in the custody of my
friend in Phoenix....
Please help, if you can. I'm starting to lose sleep over this one. Oh
yes, my wife did fill boxes with all sorts of stuff, like toilet roll and
suave shampoo, so why my precious PDP 11/23 (and my TRS-80 Model II) had to
be left behind I don't know. Women!
Take Care,
Mark Firestone
I'm getting sick of my DSL modem locking up on me. Some times it will be
good for weeks on end, other times it needs to be powercycled every few
hours. This seems to be one of those every few hours days :^(
It is fairly easy to set my Firewall up to monitor and determine if the
firewall is down. The question is, what would it take to get that Firewall
to powercycle the ()#*&% #(*&% modem on it's own? I seem to recall seeing
something that can be plugged into a Serial port, and you can send it
signals to turn the power on and off on a receptical.
Zane
> > I don't know him, but many users of SIMH would agree to have one
> > copy of DSM-11 available. Myself one of them, just by the way ;-)
> >
> > Other old PDP software is welcome too.
> Likewise. I am fairly close to Luc, so I could go and get the tape,
> read it into an image here, copy it so he has an extra copy, take them
> back, and send out the image...
Great, great, great, Fred :-)
> That said... dang, I *still* need (access to) a working 9-track 800bpi
> unit... anyone? In Holland, or within a day's drive from there?
I can't help by now. I have one PERTEC and one SCSI tape unit pending
to pick up.
Thanks and Greetings
Sergio
If you can read magtape (9track) I can send you the distribution tape (a
copy)
what I have is the version for PDP11 running native on this machines (min.
11/40 on UNIBUS; 11/23 on QBUS)
I don't have VMS versions
gr.
Luc
-----Oorspronkelijk bericht-----
Van: cctech-admin(a)classiccmp.org
[mailto:cctech-admin@classiccmp.org]Namens John Willis
Verzonden: vrijdag 27 juni 2003 20:46
Aan: Cctalk@Classiccmp. Org
Onderwerp: DSM (digital standard MUMPS)
Is it still possible to find DSM? Looking to learn the MUMPS language,
preferably on one of my
VMS machines.
The only Omron plc's i saw used a cartridge to store
the pgm.
the "programmer" was actullay an eprom burner with
cassette ports on it to store an offline pgm.
if you plc has a removeable box with a connector on
the back of it (cartridge) open it up and see if it
has an eprom in it .
if it does you'll need the omron burner to store a
ladder pgm in it.
do a search for Omron on the net and i am quite sure
you'll find info on it (omron's web page may still
have the plc line on thier webpage, an email to the
company will tell if they still have manuals on it).
sorry, i have never pgmed an omron - just a ge series
6 model 60 (yes i have the industral hardened ibm
luggable and all the pgms) and the westinghouse
pc-1100's (yes i have all the accys for those too as
well as the star tech serial/computer cassette drive)
Bill
Message: 10
From: "John Allain" <allain(a)panix.com>
To: <cctalk(a)classiccmp.org>
Subject: Omron Programmable Controller
Date: Fri, 27 Jun 2003 20:34:51 -0400
Reply-To: cctech(a)classiccmp.org
I have an older one here, an Omron Sysmac SCY-P5R-30E
with
control panel. Someone out there know something about
it?
I need to do basically one of the following.
1./ Find documentation so as to make it a useful
member of the collection.
2./ Give it to someone that more or less needs it.
3./ Scrap it for parts.
Your help appreciated.
John A.
I've been playing with the Otrana Attache that I found last week. Cute
little machine. I think I might hold onto this one for a while but it's
missing some parts. Does anyone have a parts machine or parts that they're
willing to part with? I need the cross bar that runs between the handles,
software disks and manual, hinges for the keyboard and I LIKE to find one
of the 8086 processor cards for it.
FWIW I took it apart and checked it this morning and I noticed something
funny. The no serial number anywhere on the outside of it but inside
EVERYTHING has the serial number on it. The INSIDE of the case, the
monitor, both disk drives, the power supply, the sheet metal, etc are all
numbered 4616 but there's no number anywhere on the outside.
Joe
Latest haul (courtesy of the new 11/750 owner I'm helping)...
o Qbus grant cards, including a single-height Intergraph "PCB518"
o Dilog DU132 tape controller (Pertec I/O, TS11/TU80 emulation)
o M7504 DEQNA (broken handle, no cab kit)
o M3106 DZQ11 (dual-height)
o M7546 TQK50
o A012 ADV11 (says "A/D for 1103" on the solder side)
o M7810 PC11 (with loopback jumper for "punch" connector)
o M7608-BP MS630-B (uVAX-II 4MB memory card)
o M8639-YB RQDX2
o M7606-AC KA630-A
o M9404 / M9405-YB Q22 Cable Connector
o M7168 / M7169 VCB02 (QDSS) 4-plane graphics
o M8739 KLESI-U ("Aztec Unibus Adapter Card")
o M-LSI-DR11 PLUS
... so plenty of uVAX-II parts and a couple of interesting items.
I have abundance of VCB02s, so if anyone wants to turn a Qbus
MicroVAX into a VAXstation, I'm sure we can work something out
(no mice, monitor cables or cab kits, I'm afraid).
-ethan
Joe writes:
> I have a project in mind that I'll be using a High Density (1.2Mb)
> floppy drive for. But it's going to take some tinkering with the jumpers to
> make it work and I'll need a manual for it. Does anyone know if where I can
> locate a manual for any of the HD drives on-line or does anyone have a
> manual (or copy) that they're willing to part with?
Teac still has manuals for their 5.25" drives on their Web site.
See http://www.teac.com/DSPD/catalog.htm#OldFD
I found a scan of a Mitsubishi MF501B/MF503B/MF504B manual on a BBC
Micro web site. See http://bbc.nvg.org/dir.php3?dir=doc/datasheets
--
Tim Mann tim(a)tim-mann.org http://www.tim-mann.org/
Saw your ad in the net today, and I am looking desperately for a power pack
for an XEC5. I am having trouble finding one, and need one as soon as
possible. I am in Ft. Lauderdale, Fl, and my email addy is Jerishepherd(a)aol.com
Phone Number 954 435-7813
Cell Number 954 600 7611
Thank you.
Jeri
OK, got a few captioned pictures of the Torch stuff up for those interested at:
http://www.moosenet.demon.co.uk/temp/torchweb/index.html
(the non-thumbnail images are around 640x480ish and between 50 and 100KB)
I've been inside everything to do some initial checks - no obvious signs of
damage and everything was pretty clean and dirt-free. Still need to test PSUs
on a dummy load etc. before I try powering anything up though.
cheers
Jules
________________________________________________________________________
Want to chat instantly with your online friends? Get the FREE Yahoo!
Messenger http://uk.messenger.yahoo.com/
Hello,
I have some documentation about STAG 39M200 Module for
Stag PP39 Programmer.
I have Revision 14 Eprom for this Module.
Are You still looking for it?
Look at my resources page http://matthieu.benoit.free.fr/119.htm
or contact me.
@+
MB.
> Message: 33
> Date: Fri, 27 Jun 2003 08:40:32 -0700 (PDT)
> From: Ethan Dicks <erd_6502(a)yahoo.com>
> Subject: Re: Perkin Elmer 7300 Pro System Museum Quality!
> To: cctalk(a)classiccmp.org
> Reply-To: cctalk(a)classiccmp.org
>
> --- Mail List <mail.list(a)analog-and-digital-solutions.com> wrote:
> > Here's one some of you might like.
> >
> > Perkin Elmer 7300 Pro System Museum Quality!
> >
> > http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2738081449
>
> I tried to sell one of those years ago at a hamfest. No takers at $15.
>
> We used it as a cross-development environment for COMBOARD and follow-
> on products - mostly as a departmental C compiler that would emit
> 68000 assembler (we were using Whitesmith's C on the VAX for the
> system and VMS application code).
>
> Nice little box, System III. Got mine in storage, along with all
> the diskettes and manuals.
>
> -ethan
>
>
>
System III or MicroXelos (UniPlus System V)...
There were a number of misfeatures including a very slow video card
and a bus that couldn't handle faster chips than the 68k that was in it.
I dumped a pickup truck full of 'em (7350's) in the trash after rescuing a
bunch out of Concurrent in '89 or so. Couldn't give 'em away at Trenton.
I had all the distribution software including RM/Cobol, Idris, and
stuff. Later I wanted to get my hands on a Masscomp 5550 or so to
replace it. Concurrent bought up Masscomp but getting the boxes was
nearly impossible at the time and FreeBSD and Linux made the 68010/020/030
Masscomps less than attractive in a price/performance/size kind of way.
They also needed heavy hot tubes like the early Suns did.
There was an attempt to get Concurrent to build a 68020 version of the
7350 for Perkin-Elmer (since they split into two companies) and the 68000
would barely take a 68010... but the Versabus backplane had noise and
timing issues when you tried to push it.
There was even an XF/200? version -- with 16 (IIRC serial ports).
I ran a news feed to the box at home with 2 80 meg MFM ST506 drives...
Slow but it worked. Fed it with a Trailblazer Plus and later a T2500.
Amazing, but I think the modem had more processing power.
Now the video cards have more power than the CPU's did back then.
Bill
--
d|i|g|i|t|a|l had it THEN. Don't you wish you could still buy it now!
bpechter@shell.monmouth.com|pechter@ureach.com
> A long-time acquaintance of mine (Graham Toal, whom some of you may
> know) has access to a collection of PDP-8 paper tape which wants
> reading. Unfortunately some of it is in the care of the Royal Musuem
> in Edinburgh, who won't let it out of their sight.
> Does anyone -- preferably in the UK -- have a paper tape reader that
> could be hooked up to a modern machine (eg a laptop) to read the tapes
> in the museum, and which they'd be willing to lend?
> To see what Graham and friends are doing, take a look at
> http://history.dcs.ed.ac.uk/ It's worth a look even if you're not
> interested in Edinburgh.
> I know Graham reads the list, so replies here or to me are fine.
Hi Pete! Just to introduce myself to the folks here; I was an Acorn
system programmer for several years which is how I know Pete, and
I subbed to this list a couple of days ago - although my interest here
is actually in older stuff, I *do* have an absolute sh*tload of old
Acorn systems and boards that I've been trudging around for years
and I'll be glad to help with Acorn info when I can. Any of the
Acorn kit that I have which anyone needs, they're welcome to it -
I'll never use it again, I just wanted to save it from the dumper...
(for example I have lots of those 32K system/atom memory cards that
y'all were talking about earlier. In fact I have one of the System (4?)
file servers sitting on our washing machine right now that I've been
meaning to run up as soon as I can find my 110-240v transformer again!;
I've restored several hundreds of my acorn 3.5" disks but am only
very slowly restoring my 5" disks via a raw-read program that's
a pain in the arse to use; I think that job will go faster when
I get a real beeb set up with a serial line to my unix - again, the
bottleneck is a transformer. I have one somewhere but it's mislaid!
Oh - that, and no monitor :-) )
Anyway, yes, we have a significant collection of paper tapes which
I used to use personally around '76-78, at which point they were
donated to the Royal Scottish Museum. Unfortunately the curators
won't let us take them off the premises now in order to read them,
so we need to take a reader of some description into their warehouse
along with a portable PC. Even a serial ASR33 would do, although
it would be a heavy lift! We're pretty desparate here...
We also have some older paper tapes in the care of the University
computing service which *may* have things like the KDF9 Atlas Autocode
compiler on them which we also would like to read, but the PDP8
stuff is the current priority.
One of our volunteers, Chris Whitfield, went to visit Hans Pufal
last year and recovered data from some PDP9 DECtapes, including
the full source of Hamish Dewar's operating system for the PDP9/15.
Incidental to that - you may be interested in this file:
http://www.gtoal.com/grenoble/source3/8tran.000
Which is the source of the utility whose manual is here:
http://www.spies.com/~aek/pdf/dec/pdp15/DEC-15-ENZA-D_8TRAN.pdf
There's other related stuff in that same directory such as the
source to PIP. We hope to return to Grenoble some time and read
some more of those tapes. One of the tapes *MAY* be the mythical
PDP7 "Decsys" OS. At least that's what's pencilled on the tape,
and the university did own a 7 for CAD work...
We have an RL01?? (maybe an RK05?) disk pack from the Wavepower
Project's PDP11 which we think may contain "GUTS" - Groeningen
University Timesharing System - an EMAS-like personal OS written
by Harry Whitfield and his students in Groeningen. We're looking
for someone in the UK who may be able to read it. The disk format
is the same as RSX11 we think, but we'd be happy even for
a sector by sector raw copy.
We've restored the sources of several operating systems:
EMAS - on ICL2900 and IBM/XA
PDP9/15 operating system by Hamish Dewar
68000 O/S by Fred King
Mouses for the Interdata/Perkin Elmer range by Peter Robertson and Chris
Whitfield
This is all currently visible on the net but hasn't yet been
organised into a web site. I'll be working on the web site
over the coming weeks; it'll appear one day at the URL which
Pete mentioned above.
(WIP is at http://www.gtoal.com/athome/edinburgh/ )
I recognise a few of the names here. To the rest of you - nice to
meet you. I hope to stick around, although I'm reading this via
the daily digest so won't be posting as frequently as most of you
guys.
regards
Graham
> My guess is that you have normal XXX boards mounted in a non-standard
> case. Possibly the case from some other Torch product.
Yep, from some of the Torch docs I have, the case seems to be from a Torch
300-series workstation. These appear to have been the getting-more-familiar (!)
BBC core with either a Z80 or 68k Atlas board attached and optional seperate
disk cabinet. Seems like there was a stage in production where the disk ran via
a controller in the expansion cabinet from a SCSI bus whilst the floppy used a
seperate cable going to the controller on the BBC - not the 'SCSI floppy' type
setup that my XXX has.
>> wired to the back of the case though). There's also markings on the board
>> for a VME bus connection, but no socket or associated circuitry.
>
> The VME interdace is a DIN41612 plug and a few buffers. AFAIK all
> production machines had it fitted.
fair call. Don't know why mine wouldn't, even if it were a prototype - if the
circuitry's there on the card why not install the chips and sockets? Strange.
> Yes, it's analoge RGB at TV rates + 2 syncs + drive for a piezo speaker.
Ok. The Torch monitors I have all need seperate syncs - explains the RGB board
in the Torch 725 machine, which essentially seems to be a sync splitter from
the BBC's composite output.
>> labelled 'video' - but as the case is a hack who knows...
> It sounds like this case once took a BBC micro board...
yep, that fits with my 300-series theory.
> There's an 8 pin power connector on the stickleback. Is is connected to
> anything other than the PSU and the battery? The touch-switch circuitry
> is on the PSU board, and sends an interrupt over one pin of that
> connector (I can dig out schematics/pinouts if you need them).
*wanders off to check...
Just PSU and battery. Connections as follows:
^- front of board
GND o o +5V
GND o o +12V
BATT o o -5V
+5V o o nc
v- rear of board
The battery is obviously wired to ground too. 12V from the PSU also runs to the
battery via a lot of black insulation tape; I haven't looked what's under there
yet...
The PSU isn't a standard XXX PSU (which I do have one of; I see the
touch-switch connections you're talking about) - this machine has a 100W Wier
PSU in it, likely stock to the 300 series if that's where this case came from.
[Torch "Hard Disc"]
>> OK, been inside now - it is a BBC, with a Torch Z80 coprocessor. Torch SASI
>> interface hooked up to the BBC's 1MHz bus, with a Xebec interface hanging
>> off
>
> Are you sure it's SASI, not SCSI (not that it makes much difference.
Yep it is - says so on the board :) I have the manual for the Xebec interface
to which it plugs into and that's definitely SASI / ST506. There's not much to
the SASI board as it turns out - see earlier post; most of it turned out to be
comms circuitry for driving the modem and nothing to do with the drive
interface. Far as the SASI side of things is concerned, it's just some octal
buffers, latches and the like; only about ten LSxx ICs.
I had some time to mess around with the machine earlier, armed with spare BBC
for testing (which turned out to have an intermittant RAM fault so wasn't much
use :-)
Far as the Torch machine is concerned, it seems to have a power-on reset fault
such that it needs break hitting after powering up (I swapped the Torch
keyboard for a real BBC one so at least my keypresses make sense). That
shouldn't be hard to sort out.
Now, without the SASI controller plugged into the 1MHz bus, if I unplug the Z80
board I can at least get the MCP to drop into the 'no Z80' condition where it
gives an error message. I can't get that if the SASI controller is present
(whether I have any combination of Xebec board & hard drive present or not) -
just the MCP test on the screen and a flashing cursor. I'm curious why I don't
see any disk activity at all, like it's not even trying to access the hard
drive (ditto replacing that drive with a known-working unit, just with no valid
data on it). Maybe the Xebec interface is faulty...
[ Torch 725 ]
> Definitely not a Quad-X
nope :-(
I'm quite amazed Torch could produce so many different boxes all based around
the same BBC / Z80 / 68k choices though :-)
>> Information on what exactly a Torch Unicorn was would be useful, to be
>> honest.
>
> I thought it was a 68000 coprocessor for the Beeb.
Ahh, yet another case with the same guts then :)
>> I do have a spare hard disk labelled as Quad X, those tape drives and
>> controller boards, a surplus Torch-stock PSU, complete ROM set, and the
>> complete schematics for the QX VME card. I'll just go build myself
>> one... ;-)
>
> Good luck in finding that custom chip (oh, what did they call it?) that
> handles video, etc...
the Openchip? True. I do have the programming guide and the spec (which I
believe you said that you had), but unfortunately not the chip. I bet the guy I
got this stuff from has a whole pile of them!
[tape drives]
> Oh, it just hooks up to the SCSI bus... It's getting the software sorted
> out that's the problem.
ahh, fair enough. Not come across anything that'll help you yet though :-(
> Still, it can't be worse than the PERQ3a. On that infernal machine, the
> minor device numbers have no relation to the SCSI addresses at all!
take the ol' tial-and-error approach huh? :)
> The Manta is something I know nothing about, so if you have technical
> docs I'd be interested in probing you for information...
yep, I do - no schematics though :-)
Just skimmed the docs, and it looks like it's a pretty flexible unit supporting
up to 4 drives, which can be just about anything by the looks of it. Although
there are built-in definitions for common drives I get the impression it's all
pretty flexible so just about anything can be defined. Parameters can be set
for a given drive, including data rate (125/250/500KB per sec), number of heads
(i.e SS/DS), bytes per sector (128/256/512/1024), sectors per track (0..244),
cylinders (0..245), write precomp, step rate, head settle delay, motor on/off
delays, starting sector number etc.
There's also a parameter for setting the relationship between logical and
physical steps, for e.g. formatting a 40 track disk in an 80 track drive.
They actually look like quite nice boards... one of those in the PC could come
in handy...
cheers
Jules
________________________________________________________________________
Want to chat instantly with your online friends? Get the FREE Yahoo!
Messenger http://uk.messenger.yahoo.com/
> Can you toggle any line on any port (say one of the handshake lines on
> the serial port (RTS, DTR) or one of the lines on a parallel port)? If
> so, you could use it to drive a transistor and then a relay..
This is pretty much the kind of think that I had in mind, I'm sure I could
build it, I'm just not sure how. At least the Sparc 5 I'm using has two
serial ports (one is the system console).
I've got to admit, I *REALLY* like Jay's idea of the APC Masterswitch,
unfortunatly they look to be a lot more than I'm wanting to spend :^(
Still, they would be *perfect*.
OTOH, your idea, coupled with the 16-port Serial box I've got for the
firewall could make an interesting setup. Eight ports for switches, eight
ports for console cables :^) Assuming of course my OS supports the box.
Zane
> This unit sounds /very/ like a Torch 68000 Hard Disc machine I have, so
> definitely production quality. Same ridiculous separate power supply..
ahh - so there's one other out there at least then! :) Looks identical, but
mine doesn't have the 68000 stencilling on the front of the case. The brackets
securing the BBC board to the drive cage and the mounting for the UHF connector
(where it plugs into the BBC board) look very improvised on my machine, but
maybe that's the way they all were in production.
> Mine appears to be complete - it has the modem (connects somewhere to the
> torch boards, rather than the RS423 on the BBC, so makes 100% of all BBC
> native communications software useless).
yes, I just worked that out too; I'd found schematics for the SASI board which
wasn't nearly as complex as what I have, then schematics for a mysterious comms
board. Turns out that although it's labelled as a "Torch SASI board", the board
also carries the control logic for the modem. Why the modem went walkabout from
my machine I don't know.
> 68000 board is positioned where the Z80 board is on yours, is just bigger.
I don't think mine has the mountings in the right place to take either of the
two flavours of 68k boards I have.
> The barrel jack plug connector on your modems was indeed the standard "plug
> and socket" telephone connector in the GPO days (before they became British
> Telecom) and was not a mass-market commodity - you had to pay quite a lot
> to have sockets installed; most phones were hard-wired.
Hmm, I do remember phones being wired into the little box (typically) just
inside the front door on houses before sockets became common. Seem to remember
phones could only be bought from the phone company too.
> My machine /seems/ to run a 68000 version of CPN - there is supposed to be
> a unix for it, but I never found a way to boot it into that, or software to
> reload it.
I had a quick flick through some of the docs I have. They seem to suggest that
you need the later Atlas 68k board to run Unix and CPN from a hard drive, and
that the earlier 68k 'Neptune' cards wouldn't allow this. See what card you
have (it'll say Atlas if it's the later card) - I've probably got everything
needed to do a Unix install against one of those assuming any of the discs I
have are still intact.
> I got rid of most of my other torch stuff; the communicator tried to sell
> for quite a high price on eBay.. makes me cringe to think of so many going
> to landfill.
I heard they weren't that common and a little sought after. Maybe some more
will crop up at this guy's house...
Is your machine somewhere where it's accessible? I'm curious as to what disk
setup you have in your machine; whether it's a 1MHz - SASI - Xebec - drive
configuration, a 1MHz - SCSI - Xebec - drive config, or something else
entirely.
Knowing what ROMs you had might be useful too in trying to work out how to get
my machine to boot as at least I can try to duplicate a known-working
configuration. And if you feel like getting your hands really dirty, pull the
MCP ROM temporarily so that the machine boots to Basic and see if your keyboard
produces sensible characters or not :-) (the keyboard mapping is all over the
place on mine, but I don't know if it's supposed to be like that or not!)
cheers
Jules
________________________________________________________________________
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When the Model III first came out, it was Cassette
only. and 16k and 32k Models (I have a load of the
badges I ordered from National Parts that say
16k/32k/48k, because the Coco used the same ones).
That is probably the catalog number for one of those.
I can't put my hands on a vintage RS Catalog from
those days, but I probably have one somewhere...
When the Disk Controllers and drives came out, I had a
friend that wanted one badly...
I worked in a Radio Shack store at the time. We would
get the National Parts Catalog every month, which
would often list repair parts and kits in advance of
the retail release.
We ordered the Disk Controller and Drive system before
it became available at retail and put it in ourselves.
There was no manual, but it was pretty easy. We
figured it out in an hour or two. He had one of the
first 48k, 2 Disk Drive Model III's in Brooklyn.
I had a fun similar story with my Model I Expansion
Interface...
I had bought it on layaway from my store and I was
paying it off each paycheck. Radio Shack wanted an
ungodly amount of money for the Ram upgrade to take
the E/I from 0k to 32k. Something like $100 a set,
plus installation.
I found a company selling the RAM chips for $35 a set
(I think), and ordered two sets (the amount of $75.00
sticks in my head. That's either the price of both
sets together, or I paid $75.00 each for them...)
Anyway... I took the E/I home as soon as the RAM came
in. Upgraded it to 32k, tested it... And then brought
it BACK to the store and put it back on the shelf.
I paid it off a couple days later, and then took it
home.
I'm the only person I know who voided the warranty on
a piece of hardware BEFORE I officially bought it...
LOL!!
Regards,
Al
> Date: Fri, 27 Jun 2003 14:25:37 -0400
> From: "Vin Furfaro" <vfurfaro(a)kva.com>
> To: <cctech(a)classiccmp.org>
> Reply-To: cctalk(a)classiccmp.org
>
> Would be nice to go back to those days!!
Sure would! But I'd love to do it better...
> How are you Al? What are you up to these days? Still
> in computers in NY?
No. I'm in Philadelphia now. I work for Mac Technology
Groupe doing Macs and PCs. On a long term contract
with the Philadelphia Board of Education.
> I stumbled across the message you posted (below)
> while doing some research on Michael Daddio
> (remember the idiot that ran Corvus), and
> figured I'd drop you a line to say hi.
GREAT!!!
I've been thinking of you lately. Charlie Hedbring has
been asking about you... (
http://www.programsteppe.com )
I drove from Philly to Saratoga, NY two weeks ago to
setup 5 Apple II's and assorted other classic systems
for him. He's going to bring his Corvus from NYC to
Saratoga and next month I'm going to drive up and set
it up for him.
I still have a load of Corvus stuff in my closet I got
>from Stewart Newfeld to sell for him...
I have to inventory it one day and get it into good
hands...
> Hope all's well with you.
Things are great! Hope things are going well with
you...
Contact me off this list. Let's stay in touch!
It's WONDERFUL to hear from you.
>
> Vinny
Regards,
Al Hartman
>
>
> ************************
> Vincent Furfaro
> President
> KVA Communications
> www.kva.com <http://www.kva.com/>
> 888-KVA-3366
> vfurfaro(a)kva.com <mailto:vfurfaro@kva.com>
>
> ************************
>
>
> > From: "Steven N. Hirsch" <shirsch(a)adelphia.net>
> > Subject: Any Corvus collectors out there?
> >
> > Hi,
> >
> > I'm new to this list and wondering how many Corvus
> > collectors are out there.
>
> Hi,
>
> I'm not exactly a Corvus collector, but I used to
> work
> for Lawrence S. Epstein Associates, LTD., and we
> were
> the East Coast Distributor for Corvus Equipment for
> quite awhile...
>
> And I have a couple of drives and various odds and
> ends taking up space in a closet...
>
> I have some IBM XT Omninet Adapters, I think a
> couple
> of older Apple II adapters, Some Mirror Boards, an
> "H"
> series drive, and an old Apple II only OmniDrive.
>
> I also have manuals and software, maybe even a
> constellation adapter too..
>
> Those were the days... When a 70mb HDD sold for
> $8000.00... :)
>
> Al
I saw your entry that seems to be about a year old about Jeff Worley. I thought it was odd that you refered to him with the handle Technoid. The Jeffrey Worley I knew from High school ('86-'87) in Miami went by "technoid mutant". I'm wondering if this is the same person I know. if so, I might have some disturbing news about Jeffrey. Please let me know if some of the information I have presented here seems to Jibe with who you knew.
Ted Hubbart
I've acquired a whole collection of assorted LC-series machines from my town
disposal area - and they almost invariably work as-found, needing a little
physical cleanout and maybe a new motherboard battery. I had a Performa 475
running as a web server for awhile, figuring it didn't consume much juice
and was relatively quiet but it's been replaced with a Performa 6300CD, a
dog of a machine design-wise but adequate to serve up a single page of
family photos. I've got a tub of LCs now, plus some parts and whatnot from
a few I cannibalized; if anyone needs any perhaps I can help out. One of
these days I'll network them all and run NetBunny just for a lark - let the
bunny march from one screen to the next. (It's been rainy here lately - I
need to get out more.......)
Seth Lewin
>> They're nice machines, though. Probably the smallest mac out there, usually
>> very reliable and rarely having issues. I used them for years back when
> they
>> were The Shit(tm).
>
> If it's the small case you like go for the LC475, just stick a full 040 and
> a 32MB SIMM in there and you're good to go for pretty much anything that'll
> run on a 68K machine. I ran one for quite a while until I killed it trying
> to overclock it.
> It was even quite usable on the web as long as you stuck with something
> like Netscape 3 and turned javascript off.
>
> I've accumulated quick a stack of LCs since then including a few LC475s. I
> haven't really done anything with them other than check if there was
> anything interesting on the HDDs.
>
> Most of my Mac needs are met by the Quadra 950 and an slightly upgraded
> PM7500. I do have an LC ][e card that I paid too much for, I'll get around
> to installing it one day.
On Jun 27, 17:52, Zane H. Healy wrote:
> > Can you toggle any line on any port (say one of the handshake lines
on
> > the serial port (RTS, DTR) or one of the lines on a parallel port)?
If
> > so, you could use it to drive a transistor and then a relay..
>
> This is pretty much the kind of think that I had in mind, I'm sure I
could
> build it, I'm just not sure how. At least the Sparc 5 I'm using has
two
> serial ports (one is the system console).
>
> I've got to admit, I *REALLY* like Jay's idea of the APC
Masterswitch,
> unfortunatly they look to be a lot more than I'm wanting to spend :^(
> Still, they would be *perfect*.
>
> OTOH, your idea, coupled with the 16-port Serial box I've got for the
> firewall could make an interesting setup. Eight ports for switches,
eight
> ports for console cables :^) Assuming of course my OS supports the
box.
That's pretty much how I've done it in the past. You could also use a
parallel port to drive several relays.
One slightly simpler method I've used is to employ a
photvoltaic/solidstate relay. Something like the Omron GVM series will
switch 350VAC and currents of about 0.1A (which should be fine for your
modem), or the International Rectifier PVA2352N will switch 200VAC at
around 0.14A. The Omron ones need about 10mA drive at 12V, the IR
types typically 5mA, so you can normally drive them directly from a
serial handshake line, and they come in a DIL package the size of an
8-pin device. Cost about UKP6, so I guess about US$10 or so. They're
MOSFET devices so they can be used to switch DC as well as AC.
There are some other devices that will switch a couple of amps, or even
more, and still only need 10mA drive, but they tend to be encapsulated
hybrids and take up more room. They also tend to be thyristor or triac
units, so best restricted to AC. I've never used them, but Crydom do
some devices at about the same price as the small Omron SSRs, except
they switch up to 5A with a control current that could be as low as
3mA; however they're bigger and use a triac.
One thing to think about is whether you want NO (normally open) or NC
(normally closed) operation. Do you want the power turned off
(disabled) if the controller is powered down or removed?
--
Pete Peter Turnbull
Network Manager
University of York