I have one and a complete board set for another. The PDT11/150 is the RX01
disk based version using the same board set, different roms and a RX01
compatable disk system.
Both are kinda cute if only they were PDP11 in a tiny space back when
useful systems were not small. (1980ish)
Allison
My mailer is only slightly dumber than Pine so that attachment was curious
but otherwise meaningless to my Win3.1 system.
Security by obscurity and narrow functionality.
Allison
I need info. on an unusual item I found at my High School:
It apparently appears to be a dedicated word processing computer, what I
have below is all I know about it (& it's not much either!).
Manufacturer: Computype, Inc.
Model: Compuedit
Year: 1981 (?)
If anybody can tell me anything about it, please reply on this board.
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
>> the stuff ourselves(last 2 days)... I am not able to list contents yet
>> but .. "TU-56 units a-plenty". I will post pictures soon. I guess I
>> don't have to say a Christmas tree this year is simply out of the
>> question now.....
>
>Much interest in getting one here.
TU56's? Same here!
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
Someone called me to offer 2 19" full height racks. These are in minneapolis,
on the loading dock of Riverplace, in Saint Anthony Main. They were
asking to see if someone here atthe university would want them, but
I rather doubt that anyone does. Especially considering how cold it
is right now..
So, if you've been looking for a 19" rack to give as a Xmas present, and
you're in the area...
-Lawrence LeMay
Hi,
OK, so the MicroVAX is *still* not responding... I've at least ruled the
power supply and the terminal and the terminal cables out however. I put the
power supply from the functional VAXstation 3100 in the MicroVAX, hooked up
the Wyse 50 I use with the VAXstation along with its DECConnect cable to the
MicroVAX (BTW; I used the MicroVAX's manual to set up the VAXstation,
therefore the cable must be plugged in properly), and turned the critter
on... same results as before.. The console says "_~" and that is about it..
The manual talked about that possibly indicating a disk drive problem, but I
tried it both with and without hard disk.. no dice. Any further ideas? Also,
I'm going to be finally updating my website with *far* more
Interdata/Perkin-Elmer/Concurrent info than anyone could possibly want,
along with the same scope of Nova 1210 info, including the sheet on how to
modify an ASR-33 with the DGC teletype interface board.
Will J
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
I can't imagine what's stopping you from reading the diskette, except that I
don't believe it helps you to have so many drive types present on the
CompatiCard. Having sold mine, I can't reproduce your results. However,
it's not a bad idea to read the first two tracks into memory if you can read
anything at all, then try to correlate it with a known-good image of the
BDOS and CCP. That will tell you about the sector skewing, etc. Some
vendors number the sectors sequentially yet read them out of numerical
sequence, in order to improve performance. Others write the sector numbers
in the optimal arrangement, which is not in sequence from 0. One other
gotcha is that some systems require that the first two tracks on the
bootable diskette be single density, yet the rest can be double density.
Yeah, I dont know what that was, but I got a mail from the same machine
only in response to the "Toshiba T3100e/40" question... it included
some DOS/Windows executable in attachment.. I'm running UNIX mail, so the
whole conflagaration didnt hurt me much, though :)
- Sean Caron (root(a)diablonet.net)
Well, there's a LSI-11 based PDP system (11/04, i think?) that served as the
front-end processor for the system... Nothing really strange about them,
besides that PDP sytems are really rather collectible in their own right.
- Sean Caron (root(a)diablonet.net)
I think the PDT-11 was some sort of LSI-11 based "intelligent terminal".. I
know someone else out there has one that they did a page on; you can find
it at http://www.ultranet.com/~cfriend/museum/machines/pdt-11150.html
-Sean Caron (root(a)diablonet.net)
On Dec 20, 11:17, Zane H. Healy wrote:
> Has anyone gotten a eMail message that appears to have come from the
> mailing list with the header "Re: Help identify a Control Data piece",
Yes, but I'm using a Unix box so it wouldn't have hurt. Anyway, it's my
habit to discard attachments wihout looking, unless I'm expecting something
(and I'm sure I'm not the only listmember who does; those who regularly
send 'multipart' message might think about that :-))
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
"As I am damn near dead and *very* sick... and my family and I had to load
the stuff ourselves(last 2 days)... I am not able to list contents yet but
.. "TU-56 units a-plenty". I will post pictures soon. I guess I don't have
to say a Christmas tree this year is simply out of the question now.....
"
As much as we love the preservation of old computers, the health of you
and your family is more important. This stuff has been around for decades,
take a break, enjoy the holidays, and get back to all of this when you're
feeling better.
--al
What is a PDT-11? I just got one new in the box with 7,000+ pounds of other
brand new (1965-1978) dec stuff.
It has two TU-60s and looks like a VT100.
As I am damn near dead and *very* sick... and my family and I had to load
the stuff ourselves(last 2 days)... I am not able to list contents yet but
.. "TU-56 units a-plenty". I will post pictures soon. I guess I don't have
to say a Christmas tree this year is simply out of the question now.....
[will be back online in a day or so when we get the trucks unloaded]
john
PDP-8 and other rare mini computers
http://www.pdp8.com
-----Original Message-----
From: Eric Smith <eric(a)brouhaha.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Sunday, December 19, 1999 4:19 PM
Subject: Re: DECNA / Transciever question
>Tony writes about the innards of 10-base-2 Ethernet transceivers:
>> The power supply comes from an isolated DC-DC
>> converter in the transceiver case which takes in 12V from the computer
>> and gives out -9V for the transceiver chip.
>
>I'm not sure about separate transceivers, but the ones integrated on
>NIC cards for PCs often used a little non-potted four-pin DC-DC converter
>module made by TDK. At a guess, it's about 20 mm by 10 mm. I've
successfully
>kludged them onto boards that were designed for the potted module style.
>
>Anyhow, I have a lifetime supply of NOS of these TDK converters, so I could
>sell some cheap or trade them for other small stuff.
>
>Eric
>
--- allisonp(a)world.std.com wrote:
> Well, I did say if no one else wants it...
>
> Allison
You did, but you also spoke up first (at least as far as I can tell). If
it's not a problem, I do want it.
-ethan
=====
Infinet has been sold. The domain is going away in February.
Please send all replies to
erd(a)iname.com
__________________________________________________
Do You Yahoo!?
Thousands of Stores. Millions of Products. All in one place.
Yahoo! Shopping: http://shopping.yahoo.com
--- Dann Lunsford <dann(a)greycat.com> wrote:
> I was looking through my junque box for a cable...
> It came, if memory serves, from a uVAX 2000... P/N 70-23766...
> I remember plugging these into the uVAX to get three terminal ports.
> Anyway, if anyone wants it, ask.
Allison beat me to it, or I'd ask. I have several uVAX-2000's and only
one of the converters.
While we're on this, does anyone else have a problem with broken jack
screws on these? Mine came with the threads busted off inside the
motherboard, and it's not the only one I've seen in that condition.
-ethan
=====
Infinet has been sold. The domain is going away in February.
Please send all replies to
erd(a)iname.com
__________________________________________________
Do You Yahoo!?
Thousands of Stores. Millions of Products. All in one place.
Yahoo! Shopping: http://shopping.yahoo.com
I was looking through my junque box for a cable and found a little
device I have no use for, but thought someone here might. It came,
if memory serves, from a uVAX 2000. Has a 15-pin D-shell and 9-pin
D-shell on one end, both female, and three female MMJ connectors on
the other. There's a label that looks like:
P/N 70-23766
VAR 01-A1
TN EE917
I remember plugging these into the uVAX to get three terminal ports.
Anyway, if anyone wants it, ask. Shipping only, Thing is about 3.5 in.
square by 1 in. thick, real light, so it won't be that much. Or if
you're in the Sacramento, CA, USA area, you can drop by and pick it
up.
--
Dann Lunsford The only thing necessary for the triumph of evil
dann(a)greycat.com is that men of good will do nothing. -- Cicero
>What is a PDT-11? I just got one new in the box with 7,000+ pounds of
>other brand new (1965-1978) dec stuff.
>
>It has two TU-60s and looks like a VT100.
What you have is a PDT-11/130. The tapes are TU58s, not TU60s.
The PDT series is based on the LSI-11/2 chip set. The systems
typically have a console port, printer port, async/sync comm
port and three other serial ports. They are setup so that you
can use 60 Kb of memory instead of the typical (for -11s) 56Kb
(smaller I/O page).
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
John,
I forgot to tell you, but if you need a PDP-11/44 User's Guide and PDP-11/44
System Technical Manual, I have both and would gladly provide them to you,
as you actually *have* an 11/44. Let me know what other manuals you need and
I'll keep my eyes out.
Will J
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
I've essentially given away (for $5 a crack) a couple of dozen Shugart and
Siemens Single-Sided drives after aligning and otherwise cleaning and
repairing the things that seemed necessary. When I offered these drives
here, last June, there were no takers. Apparently the packing and shipping
costs, which I'd had quoted for me at Mailboxes, etc, were too much for the
folks on the list. It's too late now, of course.
Dick
-----Original Message-----
From: Arfon Gryffydd <arfonrg(a)texas.net>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Monday, December 13, 1999 12:49 PM
Subject: Cadigital & 8" drives (was: Re: )
>I need a Shugart 800/801 (or two)... Is this what people are looking to
>bulk buy?
>
>A
>
>>> >>> Still a reliable surplus vendor, incidentally:
>>> >>> http://www.cadigital.com/
>>> >>> Perhaps the best-known NOS selection of 8" floppy drives anywhere in
>the
>>> >>> world, as well as 8" media and cleaning kits.
>>> >> Some of the prices don't look like they have been updated in a decade
>>> >> though, 2 MB ram simms for $59 etc.
>>
>>> >With most surplus vendors, I've had very good luck with bargaining
>>> >on items having obviously outdated posted prices. But make a
reasonable
>>> >offer, not a really lowball one, or they'll not bother to talk to you.
>>
>>> Or a quantity offer... If you buy 3 at a reasonable offer instead of
just
>>> 1, they're much more willing to take the deal.
>>
>>> Maybe if anyone wants a Dragon we should coordinate it here first, then
>>> just make a bulk purchase?!?!?
>>
>>Well, I volounteer (sp?), since I'm about to buy some.
>>Any wishes ?
>
>----------------------------------------
> Tired of Micro$oft???
>
> Move up to a REAL OS...
>######__ __ ____ __ __ _ __ #
>#####/ / / / / __ | / / / / | |/ /##
>####/ / / / / / / / / / / / | /###
>###/ /__ / / / / / / / /_/ / / |####
>##/____/ /_/ /_/ /_/ /_____/ /_/|_|####
># ######
> ("LINUX" for those of you
> without fixed-width fonts)
>----------------------------------------
>Be a Slacker! http://www.slackware.com
>
>Slackware Mailing List:
>http://www.digitalslackers.net/linux/list.html
Well, I didn't feel like fighting Christmas traffic so I stole a fuse from
the /73 I'm not using at the moment, plugged in a 10BaseT transciever and
everything worked just fine.
Zane
| Zane H. Healy | UNIX Systems Adminstrator |
| healyzh(a)aracnet.com (primary) | Linux Enthusiast |
| healyzh(a)holonet.net (alternate) | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| and Zane's Computer Museum. |
| http://www.aracnet.com/~healyzh/ |
Not a good day, was working on my PDP-11/73 this morning, FTPing some files
to it, and then I shut it down for a few hours while I worked on other
stuff. Came back finally, turned it on and the EQ.SYS wouldn't load. More
investigation shows I'd apparently smoked a Transceiver, and blown the fuse
on DECNA Cab Kit.
So did the Transceiver take out the fuse? I assume so, the three LED's are
lit on the DECNA, but what little doc's I've found on the card doesn't tell
me if that is good or bad. The transceiver definitly has a smokey smell to
it.
Now why on earth would a transciever blow? Also does anyone know what the
LED's on the DECNA mean? BTW, it was a 10Base2 Transciever, the last
10Base2 system on my home network.
Zane
| Zane H. Healy | UNIX Systems Adminstrator |
| healyzh(a)aracnet.com (primary) | Linux Enthusiast |
| healyzh(a)holonet.net (alternate) | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| and Zane's Computer Museum. |
| http://www.aracnet.com/~healyzh/ |
I upgraded my uVAX II to a III+ (by installing a KA655 CPU and three
MS650 16M RAM boards. It passes the self test and gives me a command
prompt:
KA655-B V5.3, VMB 2.7
Performing normal system tests.
40..39..38..37..36..35..34..33..32..31..30..29..28..27..26..25..
24..23..22..21..20..19..18..17..16..15..14..13..12..11..10..09..
08..07..06..05..04..03..
Tests completed.
>>>
I can issue simple commands, although at the moment I don't have a
bootable disk. I'm trying to get set up to boot over Ethernet from
a MOP software on a Linux box.
What worries me is that if I just leave it sitting at that prompt,
after a few minutes it seems to reboot, printing the banner and running
the tests again.
Have I got a bad KA655, or is it supposed to do that?
More details are below, in case it helps. What the heck does UQSSP
stand for, anyhow?
Anyone have a spare copy of EK-KA655-TM?
Thanks!
Eric
>>>show memory /full
Memory 0: 00000000 to 00FFFFFF, 16MB, 0 bad pages
Memory 1: 01000000 to 01FFFFFF, 16MB, 0 bad pages
Memory 2: 02000000 to 02FFFFFF, 16MB, 0 bad pages
Total of 48MB, 0 bad pages, 120 reserved pages
Memory Bitmap
-02FF1000 to 02FF3FFF, 24 pages
Console Scratch Area
-02FF4000 to 02FF7FFF, 32 pages
Qbus Map
-02FF8000 to 02FFFFFF, 64 pages
>>>show qbus
Scan of Qbus I/O Space
-20001468 (772150) = 4000 (154) RQDX3/KDA50/RRD50/RQC25/KFQSA-DISK
-2000146A (772152) = 0B40
-20001930 (774460) = FF08 (300) DELQA/DEQNA/DESQA
-20001932 (774462) = FF00
-20001934 (774464) = FF2B
-20001936 (774466) = FF0A
-20001938 (774470) = FF10
-2000193A (774472) = FF95
-2000193C (774474) = 0000
-2000193E (774476) = 0030
-20001940 (774500) = 0000 (260) TQK50/TQK70/TU81E/RV20/KFQSA-TAPE
-20001942 (774502) = 0BC0
-20001F40 (777500) = 0020 (004) IPCR
>>>show devices
UQSSP Disk Controller 0 (772150)
-DUA0 (RD54)
UQSSP Tape Controller 0 (774500)
Ethernet Adapter 1 (774460)
-XQB0 (08-00-2B-0A-10-95)
>>>show uqssp
UQSSP Disk Controller 0 (772150)
-DUA0 (RD54)
UQSSP Tape Controller 0 (774500)
>Do you mean DECNA? Or DEQNA? The latter is a Q-bus serial card, and I
>forget what the former is?
DECNA is for the PRO3xx series...
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
I'm thinking that it would be Fun to have another Unibus chassis
on my 11/44 system, the better to hang some more peripherals from.
The current machine is stuffed like an Xmas turkey, and I would
rather not run the old power supplies our near their design limits
all the time.
I have several old 11/34a boxen lying under my (inacessable)
workbench. I got to wondering what would be involved in using one of
them for the Purpose. I somewhere dimly recall that the interface
cable for RK05 devices is in fact a Unibus jumper cable, but that
could be an optimistic imagination. I've got a couple of those idle.
Does anyone have any experience or thoughts about adding another
chassis to an 11/44 system?
[ Easy? Can o' Worms? Don't even *think* about it? ]
FWIW, I *do* have several (4) 11/44 boxes, but I'd like to save
them for spares in case the main box woofs it's cookies. The 11/34a
stuff is much better, if its feasible.
Cheers
John
Can anyone help this lady with some information on this device?
She is not on the list, so please at least copy her directly on any replies.
-jim
----------------------------------------------------------------------
>From: "Rosiecat" <rosiecat(a)mediaone.net>
>To: <jimw(a)agora.rdrop.com>
>Subject: NRI computer
>Date: Sat, 18 Dec 1999 14:25:51 -0800
>X-MSMail-Priority: Normal
>X-Mailer: Microsoft Outlook Express 5.00.2919.6600
>X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600
>
>Hello,
>I found this old computer in a thrift store and was wondering if
>you have any info re: "National Radio Institute Model 832 Digital
>Computer". It measures 22 1/4" wide and 15"deep and appears to
>look about circa 1970s. It has no ports at all any an electrical
>plug. There are 128 switches under a broad category marked
>"Computer Memory", all numbered switches 1-9, and A-F.. The
>switches work and the lights work. There is even an Accumulator
>category, a 7 switch "Register" set, Display/Speed/Clock switches
>and more. Can you give any information as to what this is.
>
>Regards,
>
>Donna Fuller
----------------------------------------------------------------------
---
jimw(a)computergarage.org
The Computer Garage - http://www.computergarage.org
Computer Garage Fax - (503) 646-0174
>At 10:19 AM 12/19/99 -0500, Megan wrote:
>>Check the settings of the DEQNA... it has a setting which allows it
>>to reboot the machine if it doesn't receive traffic within a certain
>>amount of time.
>
>No way! Really? Is this true of the DELQA as well? How would one go about
>figuring that out?
>
>--Chuck
On the DEQNA, the sanity timer jumper is W3, located below the Boot/Diag
ROM near the board handles.
Thanks for the answers--- yep, that's what I've got. I love those old
orange plasma screens. Nice and crisp, even when older. I'll try to
set up some 720k Dos disks and see what's up. Mine are hard-
drive-less, either because they came that way or they drives were
just yanked and thrown out when they were retired.
My first exposure to a plasma screen was back in '79 when I was
visiting the University of Illinois to see if I wanted to go there, and
they had the Plato terminals all over campus. IIRC, the displays on
the Plato's also doubled as a rear-projection screen for slides and
were touch-sensitive. Pretty cool for '78-79......
I'm also getting an old Zenith portable from the same era. Don't
know if it works yet -- needs 12vdc but the polarity isn't listed, so
I'm a little hesitant to just shoot it some juice. I don't know if they
were smart enough to put diodes on the input to block reverse dc
or not....
The Zenith has two 3.5" floppies that pop up from the area just
above the keyboard, kinda like an IBM. When I get the case open
and determine polarity, I'll see if it works.
Paul Braun
NerdWare -- The History of the PC and the Nerds who brought it to you.
nerdware(a)laidbak.com
www.laidbak.com/nerdware
I was just given a 3100e/40 "laptop". It powers up, screen works,
goes through bios and then asks for a boot disk. The expansion
bay is empty, which is where I assume the hd goes.
I tried booting from a DOS 6.22 disk, but it couldn't recognize it. I'm
guessing that it's not a 1.44mb drive.....800k perhaps? (It's 3.5")
What version of DOS is the latest supported? I would also like any
info on the processor, etc. The little beast has one whole meg of
ram, so this is truly a power machine......remember when you
could fit a word processor into 64k of ram along with Basic?
Also, what kind of hd does it support? I'm guessing I'll have to track
down a proprietary drive carrier, but does it use ide or is it mfm/rll?
Thanks.
Paul Braun
NerdWare -- The History of the PC and the Nerds who brought it to you.
nerdware(a)laidbak.com
www.laidbak.com/nerdware
On Dec 18, 23:05, Zane H. Healy wrote:
> Not a good day, was working on my PDP-11/73 this morning,
> investigation shows I'd apparently smoked a Transceiver, and blown the
> fuse on DECNA Cab Kit.
I have days like that... I seem to have an unfair share recently :-(
> So did the Transceiver take out the fuse? I assume so, the three LED's
are
> lit on the DECNA, but what little doc's I've found on the card doesn't
tell
> me if that is good or bad. The transceiver definitly has a smokey smell
to
> it.
I don't know what the lights mean, but I've seen transceivers on Suns take
out the corresponding fuse. I'd remove the transceiver, replace the fuse,
and see if the voltage on the AUI connector is OK. Pins 1,4,6,8,11 should
be ground, and pin 13 should be +12V.
> Now why on earth would a transciever blow?
Possibly a short on the cable, but usually it's caused by surges (eg due to
induced current from a nearby lightning strike).
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
On Dec 18, 21:39, Richard Erlacher wrote:
> I've got a mystery before me . . . there's a component, probably a 64Kx8
> SRAM but, who knows? I can't find a lead on the manufacturer or
whatever.
> The part's numbered GLT751208-15 and four of them comprised the data
cache
> on an old '486 motherboard climing to have 256KB of cache. That,
combined
> with the number of the part, 512 for the number of k-bits and 08 for the
> data width . . . looks right, but I haven't seen a data sheet for a
64kByte
> Sram in a 32-pin package. All the ones I've seen are 128kByte parts.
That's my experience, too. Looking through my pile of early-90's memory
data books, I couldn't find that number listed. However, I found a couple
of 32-pin SOP devices made by Samsung that are 64K x 8: the KM68512 is
32-pin 64K x 8. It has the same pinout as the more common 32K x 8 28-pin
cache SRAM devices, except that pin 30 is an active-high CS (that would be
pin 28, Vcc, on most 28-pin 32K x 8 devices), pin 31 is A15 (the extra
address line), pin 32 is Vcc, and pins 1, 2 are N.C. (pin would be A16 on a
128k x 8 device). Apart from the NC on pin 2, that would make it the same
pinout as the common 128k x 8 devices. Incidentally, although the Samsung
book lists lots of other manufaturer's equivalents for nearly all their
devices, there are none listed for the KM68512. It's obviously not a
common configuration!
FWIW, several motherboards did use 4 chips rather than 8 for certain cache
sizes (mine uses 4 off KM681001 for 512K x 8 cache).
There are a few other devices that might fit the description, except that
they are BiCMOS centre-power devices (Vss and Vcc are in the middle of the
sides, not at the corners). It's very unlikely that any motherboard used
such chips for cache, I think.
Check where the 5V connection goes, and if it's on pin 32 (and possibly pin
28), I'd assume it's the "normal" pinout, and similar to the KM68512 I
found.
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
At 11:14 PM 12/18/99 -0800, Rosiecat wrote:
>Hi Dave, Jim and all,
>
>Thanks for the reply and the information. Is this item worth
>anything(monetarily)? Or would it just look cool on display.
>Gotta love the internet I would of had to do mega research to
>find any info.
>
>Thanks again,
>Donna
It sold then for about $500. Now I'd say it would be great on display!
-Dave
I have a Sun 3/60 I'm trying to netboot. For rarp I need to know the
ethernet address of the 3/60. I don't have a console but I have a terminal
on the serial port so I can get to the boot monitor.
Thanks,
Kevin
-------------------------------------------------------------------------------
"It's you isn't it? THE BASTARD OPERATOR FROM HELL!"
"In the flesh, on the phone and in your account..."
-- BOFH #3
I dont know if you're talking about the T3100 (gas plasma screen, etc) but
the model number you mentioned sounds kind of similar so I'll spout off
the information just in case :)
The T3100 is a 80286 (at 8mhz, software switchable to 4) with a gas plasma
screen, so no batteries here :) Mine had 640k of RAM and i'm not sure if
it was expandable, so perhaps we're talking about different machines. It
did indeed have a 720k floppy drive, so you'll have to either transfer
any software you want to run to 720k disks or ruin some 1.44 disks :) It
will run pretty much any version of DOS out there up to 6.22. Mine had
a 20 megabyte hard disk that I suspect was MFM, but the connector is
a proprietary compressed connector with 20 pins or so (can't quite
remember exactly).
Hope this helps (if you've actually got a T3100) :)
-Sean Caron (root(a)diablonet.net)
I've got a mystery before me . . . there's a component, probably a 64Kx8
SRAM but, who knows? I can't find a lead on the manufacturer or whatever.
The part's numbered GLT751208-15 and four of them comprised the data cache
on an old '486 motherboard climing to have 256KB of cache. That, combined
with the number of the part, 512 for the number of k-bits and 08 for the
data width . . . looks right, but I haven't seen a data sheet for a 64kByte
Sram in a 32-pin package. All the ones I've seen are 128kByte parts.
As it stands, I'm inclined to wire one of these as the memory on an
8-bitter. Any inputs?
thanx
Dick
Hi --
Could somebody supply me with the switch settings for a Webster WQESD/04?
Many thanks.
-- Brian
--
Brian Harrington
Digital Knowledge Center
Johns Hopkins University
brian(a)sigh.mse.jhu.edu
What I have heard is that the human brain can process between a dozen and
two dozen "transactions" per second. But ... (sputter, sputter) ... so a 286
computer is BLAZINGLY fast by comparison ... wait, doesn't the human brain
process vast amounts of info? The human body is an absolute marvel as a
chemical plant; all those levels have to require tremendous amounts of
monitoring and adjustment? I guess I am confused on the issue of scope
versus speed ... so a brain could be considered to be parallel on a massive
scale then, whereas is a computer is serial; brain: millions of things done
slowly, computer one thing done with blinding speed ... am I way off base or
onto something???
Ray Cook
PS Sorry, its post finals excessive thought disorder;
everything is fried but it wont shut down!!!
It's the *same* guy... and yes, it still does not work.
john
PDP-8 and other rare mini computers
http://www.pdp8.com
-----Original Message-----
From: Hans Franke <Hans.Franke(a)mch20.sbs.de>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Friday, December 17, 1999 8:57 AM
Subject: The joke is on (Apple1)
>Another Jerk found his way - you may remember the guy who had anounced
>his Apple 1 auction for Dec.1 ? now he is on ... and he didn't change
>his hype making rubbish ... I belive he never used this computer, otherwise
>he must know a bit more math :)
>
>http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=221015464
>
>Servus
>Hans
>
>--
>Der Kopf ist auch nur ein Auswuchs wie der kleine Zeh.
>H.Achternbusch
>
(as soon as Internic adds it to the database; until then, you can
reach the page at http://pdp11.workstations.org)
I've registered (yay!) and created www.pdp11.org. I'm aiming to
create an informational resource page for all makes and models of
PDP-11s, similar to my (very popular) effort for Sun Microsystems
computers at http://www.sunhelp.org.
I've got a very small collection of links up currently, and will be
adding more in the next few days as I work on the page. If anyone
has contributions that they would like to see listed, please email
me at mrbill(a)mrbill.net, and I'll see that they get there ASAP.
On another note, I'm still looking for a PDP-11 system of my own;
I'm not picky about model. If you've got one for sale, please let
me know; I've got a VT102 in the garage that's just begging to
be used as a console. 8-)
Bill
--
Bill Bradford * mrbill(a)mrbill.net / http://www.mrbill.net
mrbill(a)sunhelp.org / http://www.sunhelp.org
---------------------------------------------------------------------
"Fear leads to anger. Anger leads to hate. Hate leads to using
Windows NT for mission-critical applications."
-- What Yoda *meant* to say
<I'm a bit perplexed by this ad, mostly because I'm not a PDP person..
<though I would very much like to be. On
You ought to be.
<http://www.cadigital.com/enclosur.htm it reads:
<
<Digital Equiptment Q-bus BackPlane for PDP-8
<$9
PDP-8 is OmniBus, never used Qbus! Qbus is PDP11.
<PDP 11/23 four slot dual height backplace, DEC model H9281, designed for
<use in all kinds of DEV Q-Bus systems.
<
<got me. But whatever it is, $9 sounds like a low price..
It's the four slot out of a BA11box. It Q-18 and useful for only the very
smallest systems. $9 it's either expensive and useless or if you need one a
good deal.
Allison
"PDP-11 simulator V2.3d
sim> attach rl0 unix_v7_rl.dsk
sim> b rl0
@
And thats as far as I get... anything just gives me back the @
prompt (ODT?).
"
first stage bootstrap. it's waiting for you to type a file to boot from
someone REALLY needs to write up a FAQ for the simulator.
Anyone know of a source for RK05 mounting rails? I'm in need of four sets
(cabinet side only). I've got to get the drives off my garage floor before
I'm allowed to get any more stuff.
Thanks,
Bill
I have hardly ANY docs, so if someone could point me in an appropriate
direction I'd be grateful.
I'm trying to boot UNIX V7 off the disk images provided with Bob Supnik's
excellent PDP-11 emulator, running on my Ultra 5 under Solaris (compiled
with egcs/gcc):
-rwxr-xr-x 1 mrbill other 222192 Dec 18 03:45 pdp11
-rw-r--r-- 1 mrbill other 2048512 May 15 1998 unix_v7_rk.dsk
-rw-r--r-- 1 mrbill other 10485760 May 27 1998 unix_v7_rl.dsk
bash-2.03$ ./pdp11
PDP-11 simulator V2.3d
sim> attach rl0 unix_v7_rl.dsk
sim> b rl0
@
And thats as far as I get... anything just gives me back the @
prompt (ODT?).
Thanks for any help.
Bill
--
Bill Bradford * mrbill(a)mrbill.net / http://www.mrbill.net
mrbill(a)sunhelp.org / http://www.sunhelp.org
---------------------------------------------------------------------
"Fear leads to anger. Anger leads to hate. Hate leads to using
Windows NT for mission-critical applications."
-- What Yoda *meant* to say
Hi group,
As an 'old computer owner' (besides more modern ones),
who has an original (?) OLIVETTI M290 desktop
computer, i am searching for the 2 floppy disks that
belong to this type of machine:
1. the disk 'keyboard drivers & utilities'
2. the disk 'customer test' (which has the 'system setup'
utility on it...
Does any of you have a copy of these disks available??
Or, does anyone know where to get them from the net??
Thanks for solutions!
See you,
Robert
robwill2(a)wxs.nl
Yet-another-VAX has been restored to almost operating condition :-)
Thanks everyone on the backplane, I didn't have the emply slot it just
looked like it shipped that way given the description in the Module
Database book. I put in the minimum system (CPU, Memory, DELQA) and that
booted, then I swapped out the CPU for a KA655 I had handy and used it to
probe around. So far so good, then installed the Dilog drive card, that was
recognized after I correctly oriented the 34pin cable (it was one of those
"rainbow" cables and neither polarized nor marked vis-a-vis pin 1.
That got me the drive to be visible, which, when I tried booting it,
started loading VMS 5.4, and I foolishly told it what the date was and it
explained that my license for VMS was expired. Not a problem with my handy
dandy License PAK from DECUS, but then I tried to bring up the TK50 that I
added to the system
I disassembled enough to route the cable.
Installed the M7546 and the TK50
Powered on and did a SHOW DEV and it showed up.
Then I put in a TK50 cartridge, and got nothing but blink.
-- Can't get the tape out (without disasembly)
-- Now the show dev doesn't show the tape! (the card shows
up but it hangs trying to talk to MUA0. (sigh)
The ethernet works however. Next step will be to netboot it into VMS or
NetBSD.
Note to Eric Smith: You can't get the serial console to work with the
VCB02, period.
Its got a couple of 16MB cards in it so it is a pretty sweet machine at the
moment.
If I can't resuscitate the TK50 I'll put a TQK70 and TK70 in there instead.
Its a much more reliable drive anyway. I'm also trying to construct a sort
of qbus extender with a couple of Qbus slots on the outside for doing board
testing.
--Chuck
I'm a bit perplexed by this ad, mostly because I'm not a PDP person..
though I would very much like to be. On
http://www.cadigital.com/enclosur.htm it reads:
Digital Equiptment Q-bus BackPlane for PDP-8
$9
PDP 11/23 four slot dual height backplace, DEC model H9281, designed for
use in all kinds of DEV Q-Bus systems.
got me. But whatever it is, $9 sounds like a low price..
Kevin
-------------------------------------------------------------------------------
"It's you isn't it? THE BASTARD OPERATOR FROM HELL!"
"In the flesh, on the phone and in your account..."
-- BOFH #3
Thanks to everyone who responded. It would appear that my friend
does in fact have a tape cleaner.
Next question: Does anyone need it? If so, email me off-list and I'll
find out what he wants for it.
Thanks.
Paul Braun
NerdWare -- The History of the PC and the Nerds who brought it to you.
nerdware(a)laidbak.com
www.laidbak.com/nerdware
> I have hardly ANY docs, so if someone could point me in an appropriate
> direction I'd be grateful.
>
> I'm trying to boot UNIX V7 off the disk images provided with Bob Supnik's
> excellent PDP-11 emulator, running on my Ultra 5 under Solaris (compiled
> with egcs/gcc):
>
> -rwxr-xr-x 1 mrbill other 222192 Dec 18 03:45 pdp11
> -rw-r--r-- 1 mrbill other 2048512 May 15 1998 unix_v7_rk.dsk
> -rw-r--r-- 1 mrbill other 10485760 May 27 1998 unix_v7_rl.dsk
>
> bash-2.03$ ./pdp11
>
> PDP-11 simulator V2.3d
> sim> attach rl0 unix_v7_rl.dsk
> sim> b rl0
> @
>
> And thats as far as I get... anything just gives me back the @
> prompt (ODT?).
>
> Thanks for any help.
>
> Bill
>
> --
> Bill Bradford * mrbill(a)mrbill.net / http://www.mrbill.net
> mrbill(a)sunhelp.org / http://www.sunhelp.org
Following is a log of what to type at the "@" prompt:
sim> b rl0
@r <---- Note: Once you make a typing mistake, you must restart.
@boot e.g. It will ONLY return another @ for anything you type.
@ <---- ^E typed to break to the simulator monitor
Simulation stopped, PC: 157530 (BGE 157526)
sim> b rl0
@boot <---- Start the boot program from the disk
Boot
: rl(0,0)unixnix <--- You may make corrections, etc, in this program
unix not found
: rl(0,0)unix
mem = 205376
...
Hope that helps :)
Regards,
-Skots
--
Scott G. Akmentins-Taylor InterNet: staylor(a)mrynet.com
MRY Systems staylor(a)mrynet.lv
(Skots Gregorijs Akmentins-Teilors -- just call me "Skots")
----- Labak miris neka sarkans -----
I recently came across a GRiDCase 3 laptop complete with MSDos 3.2 and Grid's
own dos as well. This also came complete with 2 10 meg hard drives. My
question is does anyone know of a way to disable the Grid-dos so that the
computer automatically starts from the hard drive? I already know about
pressing the "H" key at startup to accomplish this, but would like to have it
start from "C" unattended since I am considering running a BBS for classic
computer enthusiasts on this machine. Thanks for any help you may have to
offer.
-Linc.
>The backplane is marked Micro-11 and H9278-A which is described as:
> Q22 BUS BACKPLANE, 8 QUAD SLOTS
>
>Which sounds a whole lot like Q/CD all the way down to me. Anyone know for
>sure? I'll be trying it out shortly so I may figure it out empirically. :-)
You want to look at Micronote #5, "Q22 Compatible Options", for the
straight scoop. If you want to look at it over the web, start at the
Micronote index at
http://metalab.unc.edu/pub/academic/computer-science/history/pdp-11/hardwar…
In there you'll see the H9278 classified as
Micro/PDP-11 H9278 4 X 3 Q22/CD and 4 X 5 Q22/Q22 Backplane
In other words, this is your bog-standard BA23 backplane. The first three
slots are CD, and the rest are serpentine.
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927
See comments below.
-----Original Message-----
From: Chuck McManis <cmcmanis(a)mcmanis.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Friday, December 17, 1999 9:01 PM
Subject: H9278-A is this Q/CD or Q/Q
>I'm trying to bring a Vaxstation 3200 back to life. It had been depopulated
>but I've got all the boards. It is in a BA23 chassis. Now my previous
>experience with uVAXen in BA23's was that the first 3 slots were Q/CD and
>the rest were Q/Q with a serpentine bus. However trying to set up the
>boards this way yielded some very strange results. Not the least of which
>was no response by the disk controller.
Caused by the blank in slot 2
>The other oddity was the dual hard drive control switches on the panel. The
>chassis is marked:
> VS31V-B2
>Which the module database lists as:
> 650QV-A2,CLR,MS650-AA,VCB02,DELQA-M,CK-DELQA-YP,2 M9047,BC18Z-25,120V
>
>If I read this correctly, then the stock configuration on this box was:
>1 KA660 ----------------
>2 clear
>3 MS650-AA -------------Move up to 2 and insert grant here (M9047) on left
side
>4 VCB02
>5 VCB02 (4 plane)
>6 VCB02 (4 plane)
>7 DELQA M09047
>8 M9047 ??? Insert disk controller here.
>
>The backplane is marked Micro-11 and H9278-A which is described as:
> Q22 BUS BACKPLANE, 8 QUAD SLOTS
>
>Which sounds a whole lot like Q/CD all the way down to me. Anyone know for
>sure? I'll be trying it out shortly so I may figure it out empirically. :-)
>
Slot 1,2 and 3 have the grant on the left. The right side is reserved for
memory interconnect.
>I guess the real question is "Quad slot" code for "Q/CD" slot?
No - Quad wide connector.
Q/CD has the right side "reserved" like on a ba213.
Q/Q is the serpentine section
Dan
>
>
>--Chuck
>
I'm trying to bring a Vaxstation 3200 back to life. It had been depopulated
but I've got all the boards. It is in a BA23 chassis. Now my previous
experience with uVAXen in BA23's was that the first 3 slots were Q/CD and
the rest were Q/Q with a serpentine bus. However trying to set up the
boards this way yielded some very strange results. Not the least of which
was no response by the disk controller.
The other oddity was the dual hard drive control switches on the panel. The
chassis is marked:
VS31V-B2
Which the module database lists as:
650QV-A2,CLR,MS650-AA,VCB02,DELQA-M,CK-DELQA-YP,2 M9047,BC18Z-25,120V
If I read this correctly, then the stock configuration on this box was:
1 KA660 ----------------
2 clear
3 MS650-AA -------------
4 VCB02
5 VCB02 (4 plane)
6 VCB02 (4 plane)
7 DELQA M09047
8 M9047 ???
The backplane is marked Micro-11 and H9278-A which is described as:
Q22 BUS BACKPLANE, 8 QUAD SLOTS
Which sounds a whole lot like Q/CD all the way down to me. Anyone know for
sure? I'll be trying it out shortly so I may figure it out empirically. :-)
I guess the real question is "Quad slot" code for "Q/CD" slot?
--Chuck
hi,
I'm resurrecting a pdp-11/05 (hopefully) but I don't have anything in the
way of docs. I was wondering if anyone could send me some info on a) the
power connectors (I'm slowly trying to trace them around to make sure it's
ok - I don't really trust a 25 year old power supply too much (-: ) and b)
info about the current-loop interface. I'd like to convert it to ttl or
rs/232 but I haven't been able to find any docs on the subject of current
loops so all my info right now is speculation )-:
thanks,
-Nate Grady
nate(a)logicprobe.org / nate(a)nutopia.org / nate(a)netsync.net (etc...)
http://nate.nutopia.org
"Diplomacy is the art of letting the other party have things your way."
-- Daniele Vare
"In the beginning the Universe was created. This has made a lot of people
very angry and been widely regarded as a bad move."
--Douglas Adams
--- Tony Duell <ard(a)p850ug1.demon.co.uk> wrote:
> > > Do you have the 3 grey books for the ASR33? Volume 1 of the maintenance
> > > manual covers lubrication.
> >
> > If I do, it's long buried.
BTW, are these 8.5"x11" paper or 11"x17" paper?
What's the synopsis for the area around the
> Well, the general idea is to clean and dry the type cylinder and the
> hammer face...
One thing that I did mention and I'll mention again is that my hammer face
is not original - I stuck on a rubber sticky foot and I suspect that it is
part of the problem. I read here recently that someone has had luck with
carved pink pearl erasers, but I haven't tried that. Worst case is I can
nab the printing mechanism out of my wire-service TTY, the one with the 110
baud data set (modem) built into the pedestal. It doesn't fix this one, but
it does get me up and running more quickly.
The other thing that sticks is the line-feed mechanism. I can see the pawl
on the back side of the ratchet at the left of the main roller and it doesn't
always spring back up. Presumably it's another lube job waiting to happen.
Neither of these teletypes has been stripped down in the 13+ years that I've
owned them. To make matters worse, neither one has been powered on in ten
years. I haven't had time to work with my classic machines until this year.
> However, if it's actually sticking, then either something is bent or the
> old oil is gumming it up (probably the latter). In which case _I'd_
> dismantle the carriage totally, clean all the parts in a suitable
> solvent, put it together and oil it.
I can get for under $15 a disposable carburetor solvent bath-in-a-can at a
local auto parts store. Presumably, this is a suitable solvent. The print
mechanism should fit nicely for immersion.
> I did my first teletype without the manuals, but unless you had a
> misspent youth like me dismantling and reassmbling everything in sight,
> I'd not recomend it... With the manuals it's not too hard if you're
> generally OK with hand tools.
I used to disassemble sewing machines as a youth. I never tried putting them
back together, but I'm OK with hand tools. I just repaired the works of an
upright piano that I was gifted with - its problem was dried and cracked glue
joints on one key mechanism and the entire damping bar. Obviously, a teletype
has more moving parts than a piano, but there is a superficial resemblence.
> > How many types/grades of lubricants are there for a proper lube job on a
> TTY?
>
> 2 AFAIK. One is an oil. It's a light-ish (SAE 10 or thereabouts) engine
> oil. I normally use the lighter of the 2 oils recomended for my Myford
> lathe, as it's about right and I have an oilcan of it anyway. But any
> light machine oil (NOT WD40!!) is OK.
Sewing machine oil? "Three-in-one" brand general-purpose oil? Am I on the
right track here?
> The other is a grease. Just general-purpose high melting point grease,
> like you'd use on a car (Oooops, modern cars don't have grease points
> :-(). Castrol LM or something like that.
I also restore Volkswagens. I know what a grease fitting is and how to
operate a grease gun. (As an aside, I just got a 1975 Microbus in operating
shape for $300 - it needs some work in the fuel injection system, but otherwise
OK).
> If you can find the manuals, I can talk you through taking the carriage
> out and apart (the manaul is not that clear in places). Without them it's
> going to be more difficult, if only because of problems in refering to
> parts (with the parts list I can use Teletype part numbers).
Maybe someone will eventually scan a set it as was mentioned here.
Alternatively, there is always the route of borrowing, xoxing and returning
a set.
I was looking at things again tonight... the -8/L is not 100%. I had to remove
the PSU to fix the loose fuse holder - it wasn't just loose, the side lug had
a cold joint on it. I had to remove the mains-in and mains-out sockets to get
room for my tools, but all is well on that front now. The problem is that the
machine does not correctly run the RIM loader. If I put a halt (7402)
instruction in low core, location 0, say or even 20 and I run the RIM loader,
after reading in one character, the CPU halts at that low core instruction.
If I single step things, it does not wander off into low core. Another
wierd symptom is that pressing the START switch increments the PC address, but
only on the same page (i.e., 7777 becomes 7600)
OTOH, some programs do work. I wrote a quick-n-dirty echo test. It works
fine with my VT220...
0200 6032 KCC
0201 6031 KSF
0202 5201 JMP .-1
0203 6036 KRB
0204 6046 TLS
0205 6041 TSF
0206 5205 JMP .-1
0207 5200 JMP 0200
Nevertheless, the RIM loader fails if I put the CPU in RUN mode without the
single-step switch thrown. Back to the drawings. Sigh.
Thanks again for the good info.
-ethan
=====
Infinet has been sold. The domain is going away in February.
Please send all replies to
erd(a)iname.com
__________________________________________________
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Thousands of Stores. Millions of Products. All in one place.
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--- Christian Fandt <cfandt(a)netsync.net> wrote:
> The above lube info should get you started with bringing life back into
> your 33.
>
> Regards, Chris
As of today, it's not just mine that needs work... a long-time geek friend of
mine was at our usual Friday Geek Chinese Lunch (17 years in the same
restaurant!). I asked him about TTYs. I mentioned that he has four of
various models in various states and wants to end up with one cleaned up unit
and one set of docs. He has a couple KSR-33s, one KO-33(?) and one ASR-33.
Some are missing covers, most are missing pedestals, none are fully up and
running. The plan is to help him get one good set going and then I get to
haul away the remainders as parts (unless I can get something working out of
what's left). Maybe I'll go over to his house and learn on *his* equipment,
then go home and work on my own. ;-) Nah... I'm too impatient to wait that
long... I _really_ want to get an LT-33 up and running for my -8s.
-ethan
=====
Infinet has been sold. The domain is going away in February.
Please send all replies to
erd(a)iname.com
__________________________________________________
Do You Yahoo!?
Thousands of Stores. Millions of Products. All in one place.
Yahoo! Shopping: http://shopping.yahoo.com
I just got a PCjr, with a Quadram Floppy drive extension, and a parallel
sidecar... It worked fine for a couple days, and then I booted it up and
it checked up to 128k, and then reported Error A... does anyone have an
error code list for the PCjr?
I'm forwarding this for a non-subscriber. Remember to reply to the original
sender (paulkruse(a)juno.com).
> Here's someone wanting to find a new home for an IBM PC/XT. Please reply
> to the original sender.
>
> Reply-to: paulkruse(a)juno.com
>
>
> ---------- Forwarded message ----------
> Date: Sun, 12 Dec 1999 01:23:04 -0800
> From: Paul Kruse <paulkruse(a)earthlink.net>
> Subject: I would like to donate IBM PC/XT
>
> I have an IBM XT, keyboard & monitor, in good working condition that is
> not being used.
>
> Please reply to paulkruse(a)juno.com as I may not carry this email address
> for long.
--- Tony Duell <ard(a)p850ug1.demon.co.uk> wrote:
> >
> >
> > The PDP-8/L restoration continues. I have two devices to attach to my -8/L
> > for testing - a VT220 (all have 20mA current-loop connectors) and an
> > ASR-33.
>
> OK, first thing to do is to clean and oil (correctly!) that ASR33. If
> parts are sticking, there's a reason for it, either no oil or old,
> gummed-up oil. Carrying on running it like this will cause wear and/or
> damage.
I have intentionally not run the TTY for more than a few lines just for this
reason.
> Do you have the 3 grey books for the ASR33? Volume 1 of the maintenance
> manual covers lubrication.
If I do, it's long buried. What's the synopsis for the area around the print
hammer/type cylinder? Some letters print OK, some don't. The ones that don't
do OK for the first one, but as I said, I have to manually press the cylinder
back down to its locking position.
How many types/grades of lubricants are there for a proper lube job on a TTY?
> Reader run is another loop (and it's not part of the 'standard' loop
> setup).
Right. I located the conversion manual in the back of some 11/20 docs - how
to turn a factory-fresh TTY into a DEC-modified ASR-33.
> According to a PDP8/e printset, the pinout of the 8-pin mate-n-lock...
> I seem to remember that's 'standard' on DEC devices. You may well need
> the equiavlent of a null-modem cable to link a VT220 to the card (swap
> (2,3) and (5,7)).
That's the kind of thing I was looking for.
> A word of warning. THere are several versions of the COM8116. The
> 'standard' one, as used by Radio Shack in the TRS-80 uses a 5.0688MHz
> clock.
I have the standard one. We used it in an optional modem eliminator option
for our sync serial boards. I have the xtals, too.
Thanks for all the good info, Tony. Now if I could only locate the box of
20mA cables in the attic...
-ethan
=====
Infinet has been sold. The domain is going away in February.
Please send all replies to
erd(a)iname.com
__________________________________________________
Do You Yahoo!?
Thousands of Stores. Millions of Products. All in one place.
Yahoo! Shopping: http://shopping.yahoo.com
Why, I thought I'd get a few replies about my Terak computer
collection, as described in my intro message on 11/18.
Anyone out there have any experience with these?
- John
www.threedee.com/jcm
--- CLASSICCMP(a)trailing-edge.com wrote:
> >One thing that I did mention and I'll mention again is that my hammer face
> >is not original - I stuck on a rubber sticky foot and I suspect that it is
> >part of the problem. I read here recently that someone has had luck with
> >carved pink pearl erasers, but I haven't tried that.
>
> I think that was me. The erasers aren't nearly as durable as the
> original heavy rubber (after all, erasers *are* designed to wear away!)
> hammer face, but they are easily carved.
I just ordered some replacement rubber hammer faces from Western Numeric
Control along with some oiled paper tape and a couple of paper rolls. I
don't have an exact total, but I just dropped about a hundred bucks including
shipping.
Fortunately for my pocket book, I have several boxes of dry fan-fold tape for
my high-speed punch. I just checked the box - some black, some grey and one
box of genuine "PDP" papertape from DEC.
Now back to cleaning and lubrication.
-ethan
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--- Chuck McManis <cmcmanis(a)mcmanis.com> wrote:
> Of course Western Numerical control sells replacement pads for $3-$4 and
> they work as designed so why would you even want to try a kludge?
> (www.westncinc.com IIRC)
Thanks for the tip. I knew someone sold them. I'll be placing an order
today. I need some paper rolls anyway. I'm down to a couple of very
oxidized and brittle ones. I might as well order a couple of rolls of
oiled tape. All I have right now is the fanfold stuff for my PC8I (I know
it works, but I want some rolled stuff that won't have creases to catch in
the TTY reader).
-ethan
=====
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In a message dated 12/16/99 6:42:34 PM Eastern Standard Time,
mikeford(a)socal.rr.com writes:
<< BTW the advice given freely on this list is beyond price, $10 would be an
insult, $500 is more like what some of its worth. >>
You know, that made me think about the gigabytes of human knowledge that is
the engine behind this list, its stunning if you think about it, the "man"
hours (women hours too, knuckle dragging Neanderthal here :o)~ involved in
acquiring the knowledge and the collective pool that it represents ... mind
boggling.
And so, yet another question, this time on a truly ancient computer ... have
any studies been done on estimating the speed and capacity of the human
brain? I'm strictly a commodore 64, but there are some pentium III types out
there ... as usual, just curious, thanks gang.
Ray Cook
>One thing that I did mention and I'll mention again is that my hammer face
>is not original - I stuck on a rubber sticky foot and I suspect that it is
>part of the problem. I read here recently that someone has had luck with
>carved pink pearl erasers, but I haven't tried that.
I think that was me. The erasers aren't nearly as durable as the
original heavy rubber (after all, erasers *are* designed to wear away!)
hammer face, but they are easily carved.
I never saw any troubles in my ASR33 related to grunge wearing off the
carved eraser, but then again I only ran it for a few hundred hours :-).
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927
A friend of mine who deals in surplus stuff got a piece in that I'm
not familiar with. It resembles a RTR tape drive, but it doesn't have
any heads AFAICT. Has the CD logo on it and some wording
about changing knives.... This leads me to believe it's either
something to do with paper tape or a mylar tape slitter.
Any ideas?
Paul Braun
NerdWare -- The History of the PC and the Nerds who brought it to you.
nerdware(a)laidbak.com
www.laidbak.com/nerdware
>A friend of mine who deals in surplus stuff got a piece in that I'm
>not familiar with. It resembles a RTR tape drive, but it doesn't have
>any heads AFAICT. Has the CD logo on it and some wording
>about changing knives.... This leads me to believe it's either
>something to do with paper tape or a mylar tape slitter.
>
>Any ideas?
Especially with the wording about "changing knives" and "doesn't have
any heads", it sounds like a tape cleaner.
Tim.
Can anyone id this light pen?
"http://www.intellistar.net/~rigdonj/misc/lpen.jpg". It looks like it was
built into the body of a standard ink pen. The components on the circuit
board are covered with a black tar looking substance giving the board a
bumpy look. There is a male card edge connector sticking out of the reverse
side on the circuit board. There is a label on the pen that says "3G
Gaston, Or. (503) 662-4492".
Joe
Well today was great I got the following all free just to haul it away !!!!
1. Commodore SX-64 portable not tested yet.
2. 14 cartridges for Vic20, C64.
3. 6 Softsmith cassette games for Vic20/C64
4. OSBORNE portable with mfg date of 7-17-82 have not fired it up yet.
5. Commodore C2N cassette player
6. 1541 drives
7. Tons of C64 software on diskettes, a large box full have not looked at it all
8. Another box of PC software, all types none 10 years old yet
9. A MPS-803 printer in the box like new.
10. Some Mac Plus stuff, KB and fan unit that goes on top.
11. Seiko UC-2200 handheld with Application Rom Pack UX012, built in printer,
missing AC adapter for it. On back unit it also says Controller model UM01-020 ?
12. A couple more boxes full of stuff not 10 years old, all in all a pretty good haul for free.
This same guy told me about another shop owner that is cleaning out all of the computer
items in his shop and will give it away if someone hauls it all with NO picking. I hope to go
over there Monday afternoon and pickup everything that he has. I was told he has some
computers built in the 70's in a back room that he will toss out also. Will list the items next
week if I'm lucky to get there before the trashman.
Found these books while house cleaning.
(1) "Programmer's Guide, AT&T Personal Computer 6300 GWBASIC By
Microsoft". Perfect condition in AT&T 3 ring binder. $10 plus 3.20 for
priority mail. (the 6300 was made by Olivette and was a 8086 powered MS-DOS
computer.)
(2) Two clear plastic envelopes containing "IBM Personal System/2 Model 55
SX Quick Reference" and other papers/manuals and a disk. Never opened. $5
ea plus $3.20 for priority mail.
Email directly if you're interested.
Joe
Hi,
Anyone happen to have any reference (or maintenance/schematics)
documentation for an ADM-5? Also looking for configuration/operation info
on a Votrax Personal Speech System Model 200.
Thanks!
- Mike
I need a card for a PDP 11/05. It's a M7260 (KD11-B Board #1: Data
Paths). Does anyone have one that you're willing to part with for a
reasonable price?
Joe
In the 11/44 system which is now occupying my evenings... there
are three Massbuss adaptors [M5904]. I actually have an RA90+power
supply out in the garage, condition unknown at this time.. I don't
know anything at all about the Massbuss and it's peripherals, save
that its serial and kinda fast.
I have a DataProducts P300, that I think DEC called an LXY11... at
any rate , this printer has a DataProducts standard interface. I
believe there exist several Unibus cards that speak the Dataproducts
protocol, I just can't find them in all the manuals around here. Yet.
Would anyone like to have one (or two) of these M5904s in trade
for a Unibus <-> DataProducts P300 card (and very hopefully cable)??
What are the general spec for an RA90? Is it worthwhile even
attempting to attach it to the System?
Another question: Has anyone any suggestions re: a good
communications program for the 11/44 under RSTS/E?
Cheers... and Best of the Season
John
A few weeks ago, someone sent me the disk images of their
cache of the USUS Software Library, a collection of Pascal code
dating from approximately 1978 to 1981.
They sent volumes 1 through 29 of the US collection and volumes
3 and 4 of the USUS UK collection.
After a few years of casual Web research, I've been unable to find
anyone who'd admit to being the last of the Mohicans who ran this group.
The collection is now online. I'd added a new section to my
Jefferson Computer Museum at <http://www.threedee.com/jcm/>
containing a short description of the USUS user group, the catalog
of the files in the disks I have, and links to downloadable Zip files
containing both .SVOL disk images and plain DOS text files that
should be accessible to today's users.
I improved my UCSD P-System disk tools to handle these .SVOL disk
images. Windows executables of these are online, too. (My RT-11
disk tools were recompiled as result.)
- John
Mike,
Well, it doesn't have too much appeal as just a platter... it would have to
be at least a disk pack, not just a single platter. Of course, the entire
drive would be the best thing.
Will J
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
Tony, quoting I can't remember whom:
>> I once had a Mistubishi monitor which used a 'B'-shell with three coax
>> connectors in it along with eight or nine signals on what looked to be
>> otherwise standard pins. Just yesterday I discarded a badly damaged
>
> There's the 13W3 used on Sun workstations -- 3 coax pins and 10 normal
> pins IIRC. B size shell, I think.
It is indeed a B shell. The pins are numbered 1 to 5 (row at long edge of D), 6
to 10 (row at short edge), A1 A2 and A3 (coaxen), the ordinary pins being
between A1 and A2. Goodness knows why it's sitting on my desk - I don't have a
monitor to fit it (it's an adapter for Sun monitors into VGA cards that came
with our sparcbook at work FWIW)
Also for what it's worth, the Sun connector I have here is a D socket wit coax
plugs embedded in it.
ISTR IBM used an A-size shell with just the 3 coaxen on some of their monitors
(6019 springs to mind).
Dick Erlacher, earlier in the discussion:
> The way I learned it was that the 'D' refers to the shape, the 'B' to the
> shell size, and the number to the maximal pin count. The spacing is not
> .050" however. It seems to me that it's larger than 0.10" andnot less,
> except in the high-density versions like the DE15.
How nice. Two apparently inconsistent answers, both of which are correct!
The spacing between pins along a row is I think 0.1 inches. The spacing between
rows I think is also 0.1 inches. So from a pin in one row to a pin in the other
is around .112 inches, the "larger" spacing that Dick notes.
However, if you move along the length of a D plug, every 0.05 inches there is a
pin, and they line up nicely with 0.05 inch pitch ribbon cable (making the
ribbon cable versions (marginally) easier to make than those for a 0.1" square
matrix connector). And this is what I think our earlier correspondent meant by
0.05 inch spacing.
Philip.
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Because of its size it will be tempting to mount it as the face of a clock,
though. Without the rest of the hardware to make it work (which it probably
didn't to all that well anyway) it isn't that interesting as a museum piece.
It might as well stay where it is.
Dick
-----Original Message-----
From: Chris Kennedy <chris(a)mainecoon.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Thursday, December 16, 1999 9:09 AM
Subject: Re: Likely museum piece
>Mike Ford wrote:
>
>> I mentioned it once before, but there is a surplus guy down here in Socal
>> with a 42 inch platter out of a Bryant hard drive hanging on his wall. I
>> suspect not that high of an offer from a formal institution would pry it
>> loose. Isn't this something that belongs in a museum?
>
>
>Bryant disk? Wasn't that the water cooled thing with the platters mounted
>in the vertical plane (that is, 90 degrees to what we're generally used
to)?
>Last time I saw one of those it was being used as a sort of swap drive
>hanging off a customer built channel controller on a CDC6600 at LBL,
>must have been 1976. It was a relic even then.
>
>Seems like the platter belongs almost anywhere else other than on the
>wall of some surplus shop...
>
>--
>Chris Kennedy
>chris(a)mainecoon.com
>http://www.mainecoon.com
>PGP fingerprint: 4E99 10B6 7253 B048 6685 6CBC 55E1 20A3 108D AB97
Contact the sender (g.mitchell(a)COMPUTER.ORG), not me!
------- Forwarded message follows -------
Date sent: Wed, 15 Dec 1999 16:23:11 -0500
Subject: [HP3000-L] HP70 Classic etc available
Organization: RoadRunner Portland, Maine
From: g.mitchell(a)COMPUTER.ORG
To: HP3000-L(a)RAVEN.UTC.EDU
Send reply to: g.mitchell(a)COMPUTER.ORG
Wondered if any of you museum curators/marina operators would be interested
in parts/pieces of an HP-3000 Series 70 we're deinstalling next week? Usual
stuff: 16Meg Kelly card, 4Meg EMC cards, 1 meg HP cards, GIC's, LANIC,
IMBs, ATPs, a disk cabinet (19514A - for 670/7937 disks) and 670XP and
7937XP disks.
--
Glenn A. Mitchell Mailto:g.mitchell@computer.org
3GM Associates, Inc
Portland, ME 04102
207-772-9370
------- End of forwarded message -------
Stan Sieler sieler(a)allegro.com
www.allegro.com/sieler/wanted/index.htmlwww.allegro.com/sieler
OOPS! I missed one . . . one of my pre-Seagate CDC drives does indeed use
220/330 termination resistor packs. It's the only one, as it turns out.
Oddly enough, the MAXTOR, CDC, and Micropolis drives don't care whether the
R-pack is installed or not, but the Miniscribe models won't work without
them.
Dick
-----Original Message-----
From: Don Maslin <donm(a)cts.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Wednesday, December 15, 1999 11:42 PM
Subject: Re: An easy one (after that db9 debacle!)
>
>
>On Wed, 15 Dec 1999, Chuck McManis wrote:
>
>> Ok, so my choice of terms was poor, y'all understood what I meant :-)
>>
>> This one should be easy. I've got an ESDI drive, I know that at one time
it
>> had termination resistors in it, I know that I pulled them out, I put
them
>> into my "drawer of misc resistor packs", they are effectively invisible
:-)
>>
>> What is the resistor values for the term pack? 220/330?
>>
>> --Chuck
>
>That is what I have always found/used.
>
> - don
>
>
Ok, so my choice of terms was poor, y'all understood what I meant :-)
This one should be easy. I've got an ESDI drive, I know that at one time it
had termination resistors in it, I know that I pulled them out, I put them
into my "drawer of misc resistor packs", they are effectively invisible :-)
What is the resistor values for the term pack? 220/330?
--Chuck
... and it was a DE9 debacle! . . .
Dick
-----Original Message-----
From: Tony Duell <ard(a)p850ug1.demon.co.uk>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Wednesday, December 15, 1999 7:14 PM
Subject: Re: An easy one (after that db9 debacle!)
>> This one should be easy. I've got an ESDI drive, I know that at one time
it
>> had termination resistors in it, I know that I pulled them out, I put
them
>> into my "drawer of misc resistor packs", they are effectively invisible
:-)
>>
>> What is the resistor values for the term pack? 220/330?
>
>Almost certainly. May be marked 221331 (==22*10^1, 33*10^1). I would
>guess the pinout is one of the standard ones (SIL with the common pins at
>the ends, DIL with the common pins at the top right and bottom left
corners)
>
>The latter assumption is not always valid. I once worked on a floppy
>drive that was corrupting disks. The cause was the termination resistor
>pack. It was a 9 pin SIL, but instead of having the common pin at one end
>(marked by a dot), it had it in the middle. The correct resistor pack was
>symmetrical, therefore. Somebody had put in a normal resistor pack, and
>the result was that all sorts of signals got coupled together. Finding
>that fault was entertaining to say the least.
>
>-tony
>
It appears that most of my ESDI drives, including MAXTOR, Miniscribe,
CDC/Seagate, and Micropolis, all seem to use 150-ohm resistors. I thought I
had at least one around here that used the 220/330 type.
Dick
-----Original Message-----
From: Tony Duell <ard(a)p850ug1.demon.co.uk>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Wednesday, December 15, 1999 7:14 PM
Subject: Re: An easy one (after that db9 debacle!)
>> This one should be easy. I've got an ESDI drive, I know that at one time
it
>> had termination resistors in it, I know that I pulled them out, I put
them
>> into my "drawer of misc resistor packs", they are effectively invisible
:-)
>>
>> What is the resistor values for the term pack? 220/330?
>
>Almost certainly. May be marked 221331 (==22*10^1, 33*10^1). I would
>guess the pinout is one of the standard ones (SIL with the common pins at
>the ends, DIL with the common pins at the top right and bottom left
corners)
>
>The latter assumption is not always valid. I once worked on a floppy
>drive that was corrupting disks. The cause was the termination resistor
>pack. It was a 9 pin SIL, but instead of having the common pin at one end
>(marked by a dot), it had it in the middle. The correct resistor pack was
>symmetrical, therefore. Somebody had put in a normal resistor pack, and
>the result was that all sorts of signals got coupled together. Finding
>that fault was entertaining to say the least.
>
>-tony
>
Hi! I've got an original 68030 NeXT Cube workstation that i've had for about
a year and I can't get it to power up anymore.. The system used to work
great; has been unplugged for the last few months pretty much just sitting
there, so I dont see how much harm could have come to it.. The only thing
I can think of is perhaps the system battery might be too low, and as a
result, the soft power switch on the system (via keyboard) is not working
anymore.. I was reading around 2v on a 3v battery... Anybody out there
know if this is even plausible (or can suggest any alternative issues
that might be coming up)? :(
Thanks,
-Sean Caron (root(a)diablonet.net)
Now that everybody's in sync with the deifinitions of the other details, it
is well to remember that there's a suffix for gender. The shell filled with
plastic hosting the female pins is suffixed '-S' (socket) and the male with
the obviously male pins, is suffixed '-P' for PLUG.
That's the whole spec ... shape, size, standard maximum number of pins, and
gender: DE15S, for the connector on your typical VGA card.
Dick
-----Original Message-----
From: Ethan Dicks <ethan_dicks(a)yahoo.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Wednesday, December 15, 1999 5:58 PM
Subject: Re: argh, VAX DB-9 pinout?
>
>
>--- Tony Duell <ard(a)p850ug1.demon.co.uk> wrote:
>
>> For reference, the stnadard connectors seem to be, with common uses :
>> DA26 (Never seen it used)
>
>Got them on the back of my Cisco AGS+ router - they are carrying V.35
signals.
>
>-ethan
>
>
>=====
>Infinet has been sold. The domain is going away in February.
>Please send all replies to
>
> erd(a)iname.com
>__________________________________________________
>Do You Yahoo!?
>Thousands of Stores. Millions of Products. All in one place.
>Yahoo! Shopping: http://shopping.yahoo.com
As amusing twist on a classic joke. When I was in law school many moons ago "Bill Gates" was replaced by "a law student" and the punch line was "Oh, that was our summer associate program."
>>> Joe <rigdonj(a)intellistar.net> 12/15 9:31 AM >>>
Bill Gates dies and is at the pearly gates talking with Saint Peter.
Saint Peter says, "Bill, you've done some wonderful things in your life and
have earned the right to choose where you'll spend the rest of eternity.
You can choose between Heaven or Hell, but choose wisely." Bill looks over
Saint Peter's shoulder between the pearly gates and sees nothing but a lush
green meadow. Deciding to heed Saint Peter's words, Bill asks if he could
take a look at Hell. Saint Peter agrees and sends Bill to Hell. The Devil
greets Bill at the gates of Hell and he is immediately taken aback. Much to
his surprise, there's one heck of a party going on. People are dancing, the
alcohol is flowing, music is non-stop and everyone is having a blast. Bill
returns to Heaven to again discuss his decision with Saint Peter. He again
looks over Saint Peter's shoulder and sees only a lush green meadow. Bill
says to Saint Peter, "I've put a lot of thought into this decision and it
may sound foolish, but I'd like to spend the rest of eternity in Hell."
Saint Peter fulfills Bill's request and returns him to Hell. When Bill gets
back to Hell there's been a big change. People are writhing in agony,
flames are burning, moans of pain and despair are everywhere. Bill, being
quite shocked
at the sight asks the Devil, "What happened?? I was just down here a little
while ago and everyone was having a great time!" The Devil says, "Oh
that... That was just the demo!"
!
!
!
They can be either 220/330 packs, with Vcc at one end and Vss at the other,
or they can be 150-ohms to Vcc. If the end opposite the connection to Vcc
is not solidly connected to Vss, then it's the latter.
Dick
-----Original Message-----
From: Chuck McManis <cmcmanis(a)mcmanis.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Wednesday, December 15, 1999 4:54 PM
Subject: An easy one (after that db9 debacle!)
>Ok, so my choice of terms was poor, y'all understood what I meant :-)
>
>This one should be easy. I've got an ESDI drive, I know that at one time it
>had termination resistors in it, I know that I pulled them out, I put them
>into my "drawer of misc resistor packs", they are effectively invisible :-)
>
>What is the resistor values for the term pack? 220/330?
>
>--Chuck
>
--- Tony Duell <ard(a)p850ug1.demon.co.uk> wrote:
> For reference, the stnadard connectors seem to be, with common uses :
> DA26 (Never seen it used)
Got them on the back of my Cisco AGS+ router - they are carrying V.35 signals.
-ethan
=====
Infinet has been sold. The domain is going away in February.
Please send all replies to
erd(a)iname.com
__________________________________________________
Do You Yahoo!?
Thousands of Stores. Millions of Products. All in one place.
Yahoo! Shopping: http://shopping.yahoo.com
hey! That's a DE-9. The 'B' shell has room for all of 25 pins. the 'A'
shell is that size commonly used for the MAU interface to the backbone tap,
also common on MacIntosh monitors.
Dick
-----Original Message-----
From: Chuck McManis <cmcmanis(a)mcmanis.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Wednesday, December 15, 1999 1:25 AM
Subject: argh, VAX DB-9 pinout?
>I know that someone (Tony?) has already sent this to the list but for the
>life of me I cannot find it anywhere.
>
>What is the pinout of the MicroVAX 9 pin console port and what is the
>"correct" jumpering to wire it into a 9 pin serial port on a PC?
>
>--Chuck
>
>
please see embedded comments below.
Dick
-----Original Message-----
From: Fred Cisin (XenoSoft) <cisin(a)xenosoft.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Wednesday, December 15, 1999 2:33 PM
Subject: "DB9"
>On Wed, 15 Dec 1999, Tony Duell wrote:
>> Thank %deity there's somebody else out there who actually knows what a
>> 'DB' connector is!. I sometimes think I'm fighting a losing battle
>> against the people who insist there's a DB9 :-)
>
>How large would the pins be, or how far apart if there WERE a DB9?
>Or what about a DB25 serial port cable that only has pins 1-8 and 20?
>Could we call THAT a DB9? :-)
>
I once had a Mistubishi monitor which used a 'B'-shell with three coax
connectors in it along with eight or nine signals on what looked to be
otherwise standard pins. Just yesterday I discarded a badly damaged
'C'-shell with 78 pins in three rows. I don't think that connector will
become popular due to its fragility, at least I hope not!
>
>>
>> For reference, the standard connectors seem to be, with common uses :
>>
>> DA15 (PC joystick), MAU ethernet, etc
>> DA26 (Never seen it used)
>>
>> DB25 (Standard RS232, PC printer port)
>> DB44 (Never seen it used)
>>
>> DC37 (PC external floppy disk, Canon CX-VDO interface)
>> DC62 (IBM PC expansion cabinet)
>>
>> DD50 (Sun SCSI)
>>
The make these with four rows, more densely spaced, but I don't know the max
pin count
>>
>> DE9 (PC/AT serial port, Atari joystick, etc)
>> DE15 (VGA monitor)
>>
>> I've seen the 19 and 23 pin connectors used by Apple, Atari and Commodore
>> Amiga refered to as the DF19 and DG23. It makes sense, but I have no idea
>> if that's official.
>>
>> -tony
>
Belden Calls them all D-Subminiature connectors either Plugs or Sockets
(Jacks) in 9, 15, 25, and 37 pins. Metal Head shells or thermoplastic.
Having .050" centered conductors.
DSP009 is 9 pin plug
DSJ009 is 9 position jack (socket)
Were there Standards, or was this left to Mfg part numbering scheme??
Molex, Amphenol, Thomas & Betts, Ansley? Mil Spec?
Larry Truthan
-----Original Message-----
From: Fred Cisin (XenoSoft) [mailto:cisin@xenosoft.com]
Sent: Wednesday, December 15, 1999 4:26 PM
To: Discussion re-collecting of classic computers
Subject: "DB9"
On Wed, 15 Dec 1999, Tony Duell wrote:
> Thank %deity there's somebody else out there who actually knows what a
> 'DB' connector is!. I sometimes think I'm fighting a losing battle
> against the people who insist there's a DB9 :-)
How large would the pins be, or how far apart if there WERE a DB9?
Or what about a DB25 serial port cable that only has pins 1-8 and 20?
Could we call THAT a DB9? :-)
<snip>
>
regarding the origin of this somewhat odd (in its sensibility) scheme. . . I
was told it was Amphenol that cooked up this particular scheme for the
benefit of the military procurement system. Presumably it gave them an
advantage for a time.
Dick
-----Original Message-----
From: Truthan,Larry <truthanl(a)oclc.org>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Wednesday, December 15, 1999 2:50 PM
Subject: RE: "DB9"
>Belden Calls them all D-Subminiature connectors either Plugs or Sockets
>(Jacks) in 9, 15, 25, and 37 pins. Metal Head shells or thermoplastic.
>Having .050" centered conductors.
>
>DSP009 is 9 pin plug
>DSJ009 is 9 position jack (socket)
>
>Were there Standards, or was this left to Mfg part numbering scheme??
>Molex, Amphenol, Thomas & Betts, Ansley? Mil Spec?
>
>Larry Truthan
>
>
>
>-----Original Message-----
>From: Fred Cisin (XenoSoft) [mailto:cisin@xenosoft.com]
>Sent: Wednesday, December 15, 1999 4:26 PM
>To: Discussion re-collecting of classic computers
>Subject: "DB9"
>
>
>On Wed, 15 Dec 1999, Tony Duell wrote:
>> Thank %deity there's somebody else out there who actually knows what a
>> 'DB' connector is!. I sometimes think I'm fighting a losing battle
>> against the people who insist there's a DB9 :-)
>
>How large would the pins be, or how far apart if there WERE a DB9?
>Or what about a DB25 serial port cable that only has pins 1-8 and 20?
>Could we call THAT a DB9? :-)
><snip>
>
>>
The way I learned it was that the 'D' refers to the shape, the 'B' to the
shell size, and the number to the maximal pin count. The spacing is not
.050" however. It seems to me that it's larger than 0.10" andnot less,
except in the high-density versions like the DE15.
Dick
-----Original Message-----
From: Truthan,Larry <truthanl(a)oclc.org>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Wednesday, December 15, 1999 2:50 PM
Subject: RE: "DB9"
>Belden Calls them all D-Subminiature connectors either Plugs or Sockets
>(Jacks) in 9, 15, 25, and 37 pins. Metal Head shells or thermoplastic.
>Having .050" centered conductors.
>
>DSP009 is 9 pin plug
>DSJ009 is 9 position jack (socket)
>
>Were there Standards, or was this left to Mfg part numbering scheme??
>Molex, Amphenol, Thomas & Betts, Ansley? Mil Spec?
>
>Larry Truthan
>
>
>
>-----Original Message-----
>From: Fred Cisin (XenoSoft) [mailto:cisin@xenosoft.com]
>Sent: Wednesday, December 15, 1999 4:26 PM
>To: Discussion re-collecting of classic computers
>Subject: "DB9"
>
>
>On Wed, 15 Dec 1999, Tony Duell wrote:
>> Thank %deity there's somebody else out there who actually knows what a
>> 'DB' connector is!. I sometimes think I'm fighting a losing battle
>> against the people who insist there's a DB9 :-)
>
>How large would the pins be, or how far apart if there WERE a DB9?
>Or what about a DB25 serial port cable that only has pins 1-8 and 20?
>Could we call THAT a DB9? :-)
><snip>
>
>>
I have pulled quite a few of these out of machines. I believe they are SASI
and control two MFM hard drives and a floppy set. The largest hard drive I
have seen hooked up is the Quantum 540. Normally the floppies were DSDD 360s
but I believe it would work with single density and single sided.
I have no documentation.
Paxton
Alright,
1. Thanks for reading this junk posting, for that I apologize.
2. How do I unsubscribe from this list?
- which address?
3. command word? -> unsubscribe classiccmp
- ???
I have tried several times to unsubscribe. This list is simply swamping
my mail server. Can't handle all of the messages. It's been fun reading
all this stuff, you all certainly know a lot of S!@#. Just tell me how
to get off the mailing list. Flame all you want...I just want off this
list!
Addresses tried ->
listproc(a)listproc.listproc.net
classiccmp(a)u.washington.edu
Peace...
Going through a box of disk interface cards, I ran across a couple of these
DTC 520As. Cursory examination shows a 50-pin connector (J4) with two
termination resistors (220/330), two 20-pin connectors (J2, J3) which are
presumably analog data for two ST506 drives and two 34-pin connectors (J1
and J9). I would expect that J1 is the control cable that goes with J2 and
J3. I suspect that J9 is for floppies. The major chips are two 8255s, one
8085, one DTC-037, one NEC D765, one FDC-043, one DTC MSA 2827G, an AMD P8353,
and an AMD AM9517. There are several chips with the numbers covered by type-
written numbers, PALs and ROMs, no doubt.
There are 8 LEDs in a row by the power connector and an 8-position DIP switch.
Based on the names of most of the signals, I'd say the 50-pin host interface
connector is for an early version of SASI or SCSI but done tenuously enough
that there was margin for going with a standard when one evolved. The
manual in my possession is dated January 16. 1980. They didn't have a
standard then, and, in fact SCSI was still pretty much of an illusion at the
time. I'd guess it's a safe bet that this one will work with SASI hardware
or even with some SCSI hardware. I doubt that it will work with most
state-machine-driven interface devices, since some of the signals are not
present, and, frankly, this interface is far enough off the mark that it
probably needs a programmed I/O sequence to handle it.
Dick
-----Original Message-----
From: allisonp(a)world.std.com <allisonp(a)world.std.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Wednesday, December 15, 1999 7:01 AM
Subject: Re: DTC 520A - SASI or SCSI?
>
>Ok,
>
>Likely that is something else. I'd expect the 34pin to be floppy and
>maybe MFM hard disk.
>
>The 50pin could be... QIC02, QIC24 or maybe the old Hard disk interface
>used for the 8" hard disks (SMD?) like the SA4000.
>
>!983 SCSI ws likely SASI, but many tapes and disks used a 50pin parallel
>like interface back then too.
>
>Allison
>
>
>On Tue, 14 Dec 1999, Ethan Dicks wrote:
>
>>
>> Going through a box of disk interface cards, I ran across a couple of
these
>> DTC 520As. Cursory examination shows a 50-pin connector (J4) with two
>> termination resistors (220/330), two 20-pin connectors (J2, J3) which are
>> presumably analog data for two ST506 drives and two 34-pin connectors (J1
>> and J9). I would expect that J1 is the control cable that goes with J2
and
>> J3. I suspect that J9 is for floppies. The major chips are two 8255s,
one
>> 8085, one DTC-037, one NEC D765, one FDC-043, one DTC MSA 2827G, an AMD
P8353,
>> and an AMD AM9517. There are several chips with the numbers covered by
type-
>> written numbers, PALs and ROMs, no doubt.
>>
>> There are 8 LEDs in a row by the power connector and an 8-position DIP
switch.
>>
>> >From the date codes, it appears to have been made near the end of 1983.
>>
>> Can anyone shed any additional light on this device? Knowing what this
was
>> expecting to hook up to and how to set the DIP switches would be a great
help.
>>
>> Many thanks,
>>
>> -ethan
>>
>>
>>
>> =====
>> Infinet has been sold. The domain is going away in February.
>> Please send all replies to
>>
>> erd(a)iname.com
>> __________________________________________________
>> Do You Yahoo!?
>> Thousands of Stores. Millions of Products. All in one place.
>> Yahoo! Shopping: http://shopping.yahoo.com
>>
>
The PDP-8/L restoration continues. I have two devices to attach to my -8/L
for testing - a VT220 (all have 20mA current-loop connectors) and an ASR-33.
One problem: the connector on the VT220 is female and the cable coming from
the ASR-33 is male. While this might not seem like a problem, it becomes one
when I have to use either device from the same W076 card. Many years ago, I
rigged up a working *male* cable from a W076 card for use with this VT220. It
still works. I have a quick-n-dirty Switch Register->TTY test program and
can emit all sorts of ASCII characters for testing. When I stick a different
W076 card in the -8/L, one with a female connector, within the limitations
of this particular ASR-33, all is well (the type cylinder doesn't always
retract all the way, nor does the hammer always return to the proper position,
but I currently suspect that the replacement rubber pad I have attached to the
lever arm/hammer does not have the correct resiliency).
So... my first goal is to come up with some cables that will solve my W076
problem. Is there a good 20mA primer out there? I have a basic understanding
that it's all based on 12VDC loops, send and receive take four wires, but
there are six coming out of the W076 card... the extra two are reader-run
relay signals, obviously not needed for a VT220, but very important for the
ASR-33.
A) Is there a color standard for the 20mA connector cabling? I have three
W076 cards with three different arrangements.
B) When I make a pin-one-to-pin-one male-to-male 20mA cable, it does *not*
work with the female-equipped W076 and the VT220. A few moments with a DVM
show that the arrangement of a W076 and my straight-through cable do not
match the pinout of my long-ago-homemade W076-to-male connector that does work
with the VT220. Is there a special wiring trick for male-to-male 20mA cables?
C) Somewhere, I have a small box of 20mA cables that have, IIRC, four
conductors. Presumably, these are for VT52s. I have no reason to expect
that they won't work with the VT220, once I find them. I take it, then, that
in the "old days", one never used an ASR-33 as a tape input device except on
the console interface? I'm thinking of some of the ancient distribution panels
for other DEC serial cards that had EIA (RS-232) _or_ current-loop connectors.
Am I missing something?
Right now, because my TTY print mechanism is acting up (must press down on the
type cylinder between chars, and the line-feed mechanism sticks 20% of the
time)
I have been testing by inserting one W076 in the backplane for paper tape
reads and the other W076 in the backplane for interactive testing. Obviously,
this can't go on forever. I suppose I could rig up a *really* bizarre cable
that sends the output to the VT220 and takes input from the TTY. Maybe I'll
just work that angle. It would save on paper. I don't have much cause to
punch stuff right now, and until I get the primary box working I won't even
attempt to attach my outboard 8Kw to this CPU (the eventual goal of all of this
is to set up for 8K-papertape-BASIC and play Star Trek. I have all the tapes
to do this, but I do have to replace the floating-point tape that tore the last
time I loaded it (a long, sliver of a tear, not a perpendicular, parting tear).
I still know next to nothing about the pr/s01 except that it is *not* 110
baud. Another one of my ancient projects is to replace the M452 variable
clock module with a home-made digital baudrate generator. I suppose I'd
have to wire a switch on the backplane as well to select the M706/M707 from
two stop bits to one when the baud rate was 150 or higher, but I have a
prototype module and I have the COM 8116 clock chip and I have the proper
crystal to drive it. What remains (besides sitting down and finally *making*
it) is to decide if I want to build in the ability to drive transmit and
receive at different rates as was common with VT52s. I could receive at 150
or 300 baud and transmit as fast as possible, perhaps 9600 (I'd have to look
into the M706/M707 designs to even hazard a guess, but even 150/2400 is an
improvement). The goal would be to be able to use the pr/s01 with a TTL -8.
-ethan
=====
Infinet has been sold. The domain is going away in February.
Please send all replies to
erd(a)iname.com
__________________________________________________
Do You Yahoo!?
Thousands of Stores. Millions of Products. All in one place.
Yahoo! Shopping: http://shopping.yahoo.com
Hello -
I have 2 LaserPrinter Font Cards (p/n 1255806) you may have for shipping
if they'll work.
Typeface Pitch Point FGID
Orator Bold 6.5 18 435
Orator Bold 8.1 16 434
Orator 10 14 005
john
In-Reply-To: <19991214201001.B25956(a)mrbill.net>; from mrbill(a)mrbill.net on Tue, Dec 14, 1999 at 08:10:01PM -0600
On Tue, Dec 14, 1999 at 08:10:01PM -0600, Bill Bradford wrote:
> Anybody know anything about these? I just picked up six of them for
> $25 , with two fuser units and no toner carts, and a "4216 Personal
> Pageprinter Technical Reference". Five of the printers have a strange
> 15-pin D-sub connector that resembles an AUI or PC joystick port, with
> a set of DIP switches beside it. The sixth has normal serial/parallel
> interface connectors. None of these printers have ever been used; some
> are still in the original plastic "bag" wrappings. They date from around
> 1988.
>
> My question is - whats the strange 15-pin interface, and do I have any
> chance of hooking it to a PC or similar machine ? I got these so cheap
> because the guy who had them was going to toss them, and I hate to see
> stuff get tossed. Hopefully they'll turn into something useful.
>
> Thanks.
>
> Bill
>
> --
> Bill Bradford * mrbill(a)mrbill.net / http://www.mrbill.net
> mrbill(a)sunhelp.org / http://www.sunhelp.org
> ---------------------------------------------------------------------
> "Fear leads to anger. Anger leads to hate. Hate leads to using
> Windows NT for mission-critical applications."
> -- What Yoda *meant* to say
--
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* Dept. Electrical Engineering * *
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