All of these are gone, except for some AC adapters.
Some Tandy 1000 series left.
No Apple II or IIe, just lots of Apple/Mac laptops.
Lots of classic IBM compatible laptops, from 8088 to P3, various stages of
completeness, mostly untested.
Cindy Croxton
Electronics Plus
1613 Water Street
Kerrville, TX 78028
830-792-3400 phone
830-792-3404 fax
sales at elecplus.com
AOL IM elcpls
While I'm prepping parts for P112 kits, I started thinking about DE-9
pigtails. These things come in two different pinouts. One of them is
pin-1 of the header connects to pin-1 on the DE-9. When wiring up a
pigtail like this manually, you cut the ribbon cable into two sections.
One sections goes on the top row of the DE-9. The other section goes on
the bottom. The other one has the pins interleaved. See
http://661.org/p112/files/pigtail.pdf for what I mean.
The P112 was designed with the second pinout in mind. When I bought
pigtails for my first run of P112s, I managed to get that kind. For
subsequent runs, I always got the first kind. Which pinout is more common
with actual devices? I ask this because I'm tinkering with an amateur
radio project that will eventually use DE-9 pigtails.
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
Here's another long shot: Does anybody near southern California have one of the Radio Shack computer desks that were configured to hold a Model II that they might consider parting with, like the one in this catalog page?
http://www.radioshackcatalogs.com/html/catalogs_extra/1979_rsc-03/h002.html
Or any of the other computer desks sold by Radio Shack for the TRS-80 machines, for that matter?
--
Mark J. Blair, NF6X <nf6x at nf6x.net>
http://www.nf6x.net/
Hi ?
Thought I?d see if there were any list members who could provide background information on the Data General DG10.
We?ve received a working system as a donation, but there?s no software or documentation with it. I understand the hardware was very specific to the model since it used a MICROeclipse coupled to an i8086. What I don?t know is whether we need to locate model specific disk images to run AOS or RDOS on it. Also not sure how specific application code has to be. It would be useful to find service manuals, programming manuals and media.
I understand Wild Hare Computers was working on an archive, but there doesn?t seem to be much in the public domain as yet.
Can anyone offer any guidance?
Thanks
Colin
Has anyone ever seen any detailed tech info on the TRW/Motorola CPUAX,
circa 1989? It's mentioned in Motorola's annual report and in some
trade journals, but I can't find any info that wasn't just press
release stuff.
While I wait for PROMs to arrive for my 11/05 I've pulled another
"back-burner" project off the shelf.
It's an Interact Model One (http://oldcomputers.net/interact.html) and
it's having power supply issues.
The symptom: At initial startup after being off for any significant
period of time (say, 10 minutes or longer) the +5V comes up for 2-3
seconds then drops to zero. The other supplies (+/- 12V) are fine.
What I've done so far:
- Recapped the electrolytics in the supply (I had the parts on hand,
and it's three capacitors. Sorry for the shotgun approach, Tony :)).
- Removed socketed 2114 RAMs (in case one was shorted).
No change in behavior. The power supply and logic are incorporated into
a single PCB, so it is difficult to separate the two (I guess I'd have
to figure out what traces to cut, and I'd rather not mangle things if I
can avoid it). The DC supply is fed by an external "wall wart" which I
*believe* just contains a transformer -- it outputs several flavors of
AC (16.5V and 19V), no DC.
Any suggestions for where to start with this? Power supplies are voodoo
to me, still. The power supply schematics can be found in here:
http://www.thebattles.net/oddments/interact/InteractSchem.pdf (page 6,
lower right corner).
Thanks!
Josh
Good advice for me too ;-) - sorry about the subject line in my previous
post...
----- Original Message -----
Date: Sun, 24 Aug 2014 10:48:46 -0500
From: "drlegendre ." <drlegendre at gmail.com>
Now back to your original point, the one you felt I was missing..
> Pin #41 had the 470 to gnd, but no 330 to VT+, so it was at a true logic
low, pulled down by the 470. This causes the 7404 output to go high,
turning off the LED. When I connected the 330 part, Pin 41 came up to
2.8VDC (about 1/2 of VT+) which I guess the 7404 sees as a high (?)
switching off the 7404 output and turning on the LED.
> All good so far?
-----Reply:
Just like your misleading post about the LM309's output being connected to
the 8V supply rail, you had specifically said that "there aren't *any*
resistors connected to it, which is why it's sitting low. I checked that
out." No mention of the 470 ohm pull-down resistor...
Maybe you could save some time by checking more carefully before posting...
----- Original Message -----
Date: Sun, 24 Aug 2014 10:48:46 -0500
From: "drlegendre ." <drlegendre at gmail.com>
Now back to your original point, the one you felt I was missing..
> Pin #41 had the 470 to gnd, but no 330 to VT+, so it was at a true logic
low, pulled down by the 470. This causes the 7404 output to go high,
turning off the LED. When I connected the 330 part, Pin 41 came up to
2.8VDC (about 1/2 of VT+) which I guess the 7404 sees as a high (?)
switching off the 7404 output and turning on the LED.
> All good so far?
-----Reply:
Just like your misleading post about the LM309's output being connected to
the 8V supply rail, you had specifically said that "there aren't *any*
resistors connected to it, which is why it's sitting low. I checked that
out." No mention of the 470 ohm pull-down resistor...
Maybe you could save some time by checking more carefully before posting...
Many years ago my father recovered a whole lot of documentation from a
PDP-15 system at Philips in Stockholm that unfortunately already was gone
(scrapped or given away).
The lot is several meters worth of shelf space. I have put a photo of the
cover of one of the manuals online:
http://www.datormuseum.se/documentation-software/pdp-15-documentation
I checked bitsavers quickly but didn't find a matching document. Are these
documents already online somewhere or should I bother go through the whole
lot and document what kind of document there are?
/Mattis
Hi Retro fans,
I have a cache of retro computers I wanted to grant access to the internet. As we all know, utilities exist to open and send TCP sockets to a serial port (Jim Brain's TCPSer is awesome), but getting them to work right on a Mac can be challenging. So, I wrote my own:
http://cassarasoftware.com/serialtcp-for-mac/
It's rather bare bones at the moment, but gets the job done. I hope it helps everyone looking to get their old stuff online!
? Joe
In the early eighties we got a unit which we think is a Incoterm SPD 900
intelligent terminal. At that time it was running just fine. Until now we
had it in store but it has not been tested again lately.
Now I would like to see if it is possible to get it running again. It is
quite interesting in that it is a display unit with built in computer. The
CPU is a Incoterm proprietary implementation with a core memory. Attached
to this display unit there is a disk unit that employs hard sectored
diskettes.
The machine was running an operating system called SPD/DOS. Actually there
were all sorts of software for this machine as I recall. Even small games.
An early personal computer in some sense.
When searching the net I came across this post
http://marc.info/?l=classiccmp&m=104965775322087&w=2 by Al Kossow. Well
now, more than 12 years later, I can confirm that the disk found by Al is
>from an Incoterm system running the SPD/DOS system.
Anyway. I have put together a page with some information on it:
http://www.datormuseum.se/peripherals/terminals/incoterm-spd-20-20
If there is anyone that can enlighten me more about this unit I would
appreciate it. If there would be engineering drawings available I am very
interested.
During my searches on the net I found this page with mostly ex Incoterm
people disussing:
http://www.vintagecomputing.com/index.php/archives/33/window-to-the-sky-the…
Another interesting thing is that the SPD/DOS reference manual still can
loaned from a library in Sweden.
http://miks.kib.ki.se/search*swe/?searchtype=X&SORT=D&searcharg=SPD%2FDOS&s…
Apparently at Karolinska Institutet in Huddinge south of Stockholm. Maybe I
should go and find it there...
The reason for being available is probably that these terminals were used
by the Swedish LIBRIS II system at several libraries in Sweden.
/Mattis
We were having a garage sale, and I stumbled on
a box of Signetics 10144 chips, salvaged, these
are, I think, 256 x 1 ECL static RAMs.
Also a bunch of new in original tubes National
Semi. MM5262 2K x 1 DRAM chips. I must
have over 100 of each. Anybody need some to
repair something QUITE classic?
Jon
Todd goodman has been refunded for the error on my part, I apologize
for any inconvenience this caused anybody and for the drama.
Here is proof
http://imgur.com/gSLu1Mm
Thank You
Steve
Hello Everyone,
I am new to the list although some members will know me from the Erik's
VCFs. I recently acquired two 5322s and a 5120 and amazingly all three work
to some extent.
1. My first 5322 blew the filter caps 30 seconds into powering it up. I am
waiting for replacement parts.
2. The second one seems to be stable but the drives may have errors - they
fail the ROM based diagnostics.
3. My 5120 is actually working well except the screen jumps sometimes so I
am guessing the PSU is shaky (no pun intended) at best. I don't know enough
about the system to do anything more complex then run the prerequisite
"Hello World" program.
I have been looking for documentations, HMS, programs etc. for either of
these systems to help in troubleshooting and repair. While the 5110 (type 1
and 2) and to a smaller extent the 5100 documentation is available as PFDs
the other two systems have been ignored for the most part. Any help is
appreciated in the form of actual physical product, digital info, or even
personal experiences.
I am also looking for the bottom half of the back portion of a 5322 if
anyone is parting one out.
Thank you.
I recently downloaded and installed MorphOS the Amiga Compatible
operating system for PowerPC G4 systems. So far its really cool,
Especially if you are into Amiga, You can run most classic amiga
software on it natively :), If you got a spare iBook G4 or old G4/G5
based system laying around, Give it a look. Its a ton of fun to work
with :)
http://www.morphos-team.net/
Hi
I'm restoring a MicroPDP-11/73. I've made some initial notes here:
http://www.pdp8.se/pdp1173_restore.shtml
The ON/OFF rocker switch is broken. Three small plastic teeth that hold
the springs in place have broken of and a forth is cracked and will soon
break. I've tried three different kinds of glue without a getting a
strong enough bond. I will make another attempt with a fourth kind.
But, I wonder if these are available somewhere? The only marking I've
found is "UND.LAB.INC.LIST" which seems to be a brand with several
different kinds of rockers, some available but not the one used on this
MicroPDP-11. By the looks of it, the same switch is used on MicroVAX. In
the meantime I will probably take one from a spare machine.
I'm borrowing a picture from the net here, but it is like the switch
labled "1 0" here:
https://www.codehosting.net/blog/images/pdp/frontpanel.jpg
/P
Howdy folks,
I'm just about in the final stretch of my Altair 8800 restoration (more
like a total re-construction..) and there are a couple of parts that I
obviously need to pick-up.
FYI, this is a 'to factory' restoration, so the 8800 is going back to where
it was when it was built from a kit. This isn't totally true, as this
particular unit was later fitted with the "B" power supply and that will
remain. It's obviously far superior to the "A" version and I don't have any
of the A PSU parts.
First off, I need a static RAM board for it. Ideally, I'd like a 1K or 4K
MITS part.. but any +small capacity+ static board will probably fit the
bill, particularly if it's has hand-drawn traces and is built on the
clear-whitish board material as is the Processor board. I'm not sure what
to call this color or type of board.. so please chime-in.
Secondly, I'm thinking really hard about replacing the motherboard (or as
MITS called it the 'expansion board'). As it sits, it has a Processor Tech.
MB-1 16 (!!) slot board that's going to look a little silly with only two
or maybe three cards plugged in it. Does anyone have an original 2 or
4-slot mainboard, or even a 3rd party board that's not so dang huge?
So to this end, I have a few items to trade if that would work. There's a
64K (max 256K) dynamic RAM board, a Z-80 board, a floppy disk controller
board, what looks like an RS-232 board, and a couple other minor items. All
parts are in great shape, look ready to run.
TIA for any and all help. Feel free to contact me off-list to work out
deals.
-Bill
i happen to have gotten windows 95 installed on my old panasonic toughbook cf-27 but i have one issue where the drivers i need are a bit to large for a floppy disk and even trying to compress the files in a 7zip or a zip file does no good. i still need an audio driver and the pcmcia card slot driver to install. also i wish i could find a usb driver for my iomega zip 100 usb zip drive for windows 95 but thats not possible and since lenovo took over iomega they dropped lots of old drivers. i have tried to track down iomega drivers but i end up at sites that claim they have the driver only to be given an installer to a driver program thats a scam. maybe someone out there could help i still need the audio driver which is a yamaha sound card and windows 95 claims its a creative when its not also i need the pcmcia driver.
>...Phil Katz and PKZip...
I still have my original copy of PKZip with manual. Here is an example of a
"post-vintage" yet historic software killer ap whatever you want to call it.
I agree that this is/was a very important piece of software and should be
recognized. Here's to Phil!
Even though they're off-topic here, I still make a point to archive the
1990-1996 software that I found useful. Many of us back then used to carry
around our super support disk that almost always included pzkip, pkunzip and
pkfix, laplink (ll.exe), and many others. From a preservation standpoint, I
have saved these disks "as they were" because they help put things in
perspective. I also had early Win 3.1 TCPIP windsock, BTRIEVE, editors,
etc. PCTools disks, etc.
Bill
?
>Message: 5
>Date: Tue, 19 Aug 2014 08:36:00 -0700
>From: Chuck Guzis cclist at sydex.com
<snip>
>Have you tried the pkzip -& switch? ?(spans disks)
>
>
>--Chuck
?
?
WinZip will also create zip files that span 1.44MB floppies (I have Version 18; use Tools menu > Multi-Part Zip File).
?
Bob
I'd like to get at least 2, and preferably 4 or more, MM5204 EPROMs.
This is a 512x8 that isn't pin-compatible with anything else (except
the MM5214 masked ROM). Does anyone care to sell some, or know a
seller?
If all else fails I could make adapters to use a more modern part, but
I'd rather avoid that if possible.
Thanks!
Eric
I need to sell just one more P112 kit in order to pay for a run of parts
bags. If you've ever wanted a P112 kit, now's the time to order one (or
more).
--
David Griffith
dgriffi at cs.csubak.edu
Hi folks,
I impulse bought this thing locally a couple weeks ago, then realized
I have no IBM gear to go with it :[
It's a really cool piece of kit, but I've just moved and could really
use the space.
Just want to get back what I paid for it: $50 + actual S&H.
I get a pretty great discount on shipping through work, so even for a
big nasty terminal like this, it should be pretty cheap.
Unit is in good condition, powers on, comes with keyboard.
A couple keycaps are missing, and someone yanked the keyboard jack off
the board, but it's been bodged back on and appears to work. Anyone
with a soldering iron should be able to do a better job re-connecting
the jack, although it appears to work as is.
I just don't have time or room for the damn thing. Located in 98105
(seattle) if anyone local wants it-- or I could hold it for a bit if
anyone will be in the area soon.
Please respond off-list.
Cheers,
- Ian
P.S. Hope for-sale posts are allowed-- been a CCtalk reader for a
while and never noticed any issue with them, but who knows.
--
Ian Finder
ian.finder at gmail.com
I've been playing with a couple VaxStations and a qbus PDP11 recently
and have been having trouble with connecting 10Mb ethernet to 100Mb
and 1Gb switches. I have several 10base-T transceivers that I use
since all my 10base2 hardware is in storage.
Today for example, I connected a DELQA in the PDP11 to a 10-100-1000
switch and it did not work. I got out a 10-100 hub and put it between
the PDP11 and the switch and it worked fine.
Another example, my VS4000/60 netboots fine, but NetBSD will not
detect the network interface unless it is connected to the "right"
switch.
All the switches and hubs I am using are from a collection of
unmanaged consumer grade stuff (TRENDnet, ASUS, Linksys, etc.) that I
have accumulated.
Curious if anybody else has similar trouble when mixing old with new
and slow with fast.
-chuck
I just got a VT240 with a VR201 monitor. When I switch it on it displays
"??240 Monitor Error - 9" (although the question marks are reversed).
The terminal works otherwise. It displays the setup menus, and it works when
connected to one of my VAXen.
I have looked in the docs I have, but none have troubleshooting information,
and I can't find anything online.
Any idea what this error means?
Incidentally, I used to use a software package called UNIRAS to do graphics
on VAXen, does anyone know if it is still possible to find this software?
Anyone got anything to exercise the VT240's graphical capabilities? I
believe Datatrieve has something, but I don't want to install that just to
test the VT240.
Regards
Rob
On Tue, Aug 19, 2014 at 2:04 AM, Kurt M. Nowak <kurt.m.nowak at gmail.com> wrote:
> On 8/13/2014 2:01 PM, Ethan Dicks wrote:
>>
>> On Wed, Aug 13, 2014 at 4:51 PM, Electronics Plus <sales at elecplus.com>
>> wrote:
>>>
>>> The old Sun kbd has been claimed.
>>
>> I didn't think that would take long. I don't have any Sun gear that
>> old or I would have spoken up (my oldest is a 3/50 for which I still
>> need to make a DA15-DIN8 adapter or find a sun3 kb).
>>
>> -ethan
>
> I use a Sun type 5 (not 5c) keyboard with the removable cable and use a sun
> mini-DIN8M to DB15M, cable P/N 530-1478-02.
Don't have one of those or I'd use it. Did a quick google on the P/N...
http://www.upgradebay.com/Products/ProductInfo.aspx?ProductID=169290343
Um... $255?!? They are on the drugs.
Yes, I can make one. No I haven't made one. A list member is sending
me a real Sun3 kb this week.
Of course now that something is moving on this, I wonder if I have a
suitable monitor...
I know I have a working Viking Moniterm I (and the Amiga card to go
with it). Apparently, on this very list, it was mentioned 13 years
ago that the monitor has DIP switches for its timing settings
(1280x1024 @ 60hz was apparently common, and as used with the
A2024-compatible adapter, 1024x800 @ 60Hz or 1024x1024 @ 50Hz)
http://marc.info/?l=classiccmp&m=104957388722023&w=2
Anyone know if it'll do 1600x1100 @ 66Hz or 1152x900 @ 67 Hz? Even
if it can, would it require an ECL->TTL level converter for the video?
A quick google is not revealing tech docs for the Moniterm I (but
there's plenty of cautions out there that they fail often).
-ethan
>
>I found a TU-60 tape with what is apparently CAPS-11.
>
>The tape label has the following texts :
>DEC-11-OTSYA-A-TC
>CAPS-11 V01-02
>SYSTEM CASSETTE
Hi Ed,
CAPS-11 and BASIC/CAPS-11 have been recovered recently from TU-60 tapes.
Both packages are now available on the SIMH "Software Kits" page.
Manuals are also available here -> http://www.avitech.com.au/basic_caps-11/
Regards,
Malcolm
It seems to me that a large percentage of original PCs, XTs and ATs that I've ever seen have been missing the plastic rear trim panels. Is there any particular reason why those seem to have been so commonly removed and lost or discarded?
--
Mark J. Blair, NF6X <nf6x at nf6x.net>
http://www.nf6x.net/
Somewhere in the last couple of days I saw mention of a terminal emulator program for the TRS-80 Model 1, but I don?t remember what it was or where I saw it. I didn?t think about it because I was able to get kermit on the TRS-80, but I just pulled it out again and kermit kinda sucks. It types in all uppercase unless I hold down the shift key, and it?s got no cursor.
Anyone know of something that?s better?
Follow me on twitter: @FozzTexx
Check out my blog: http://insentricity.com
Hi all,
I'm trying to repair a bunch of DEC RL11 controllers.
(These are the UNIBUS boards for RL01/RL02 disc drives).
Running the PDP-11 diagnostics ZRLA, ZRLB, ... ZRLN from XXDP or
papertape prints out some errors,
but without the diagnostic assembler listings I don't understand what's
wrong.
At the moment I know only of these 4 listings:
AC-E040B-MC_CZRLBB0-RL11_RLV11-Controller-part-2_Oct78.pdf
AC-E044B-MC_CZRLCB0-RL01-Drive-Test-part-1_Oct78.pdf
AC-E048B-MC_CZRLDB0-RL01-Drive-Test-part-2_Oct78.pdf
AC-E246B-MC_CZRLEB0-RL01_RLV11_Exerciser_Oct78.pdf
These are all for paper tape based MAINDEC diagnostics, and are also
incomplete:
At least both "part 1" AND "part 2" is needed for ZRLB, ZRLC, ZRLD.
Can you point me to some hidden archives?
Or do you have more assembler listings for ZRL diagnostics lying around?
Bitsavers needs your input!
Thanks,
joerg
Looking for these boards to help with my PDP11/04 restoration. Not easily
available in New Zealand but I will be in New York in September so if
anyone has boards they are willing to sell please contact me off list at
jaquinn at ihug.co.nz
Regards
Andrew
The old Sun kbd has been claimed.
Still have the type 4, 5, 5c, and 6.
Cindy Croxton
Electronics Plus
1613 Water Street
Kerrville, TX 78028
830-792-3400 phone
830-792-3404 fax
sales at elecplus.com
AOL IM elcpls
Three new Sun binders scanned tonight with a pair of special docs this
time. It's all been software previous to these but tonight we have
the elusive (at least I couldn't find it) Sun PROM User's Manual (doc#
800-1736-10.) This one has lots of juicy info going back to the Sun-2
(including the LED flash codes I'll need to diagnose my -2 boards) up
through some of the Sun-4 series and the 386i. I'm sure a lot of that
info is out there in FAQs and Usenet posts but this may be the source
of that knowledge in one place (not to discount personal experience.)
There is also a system diags manual that spans a few platforms as
well. And riding along with these two is the "Editing Text Files"
tome, covering your favorite editors of the period.
The filenames are here:
800-1736-10_SunPROMUsersManual_RevA09May1988.pdf
800-1738-10_SunSystemDiagnosticsManual_RevA09May1988.pdf
800-1754-10_EditingTextFiles_RevA09May1988.pdf
and the files can be found here:
http://chiclassiccomp.org/docs/index.php?dir=%2Fcomputing/Sun
Enjoy!
--
silent700.blogspot.com
Retrocomputing and collecting in the Chicago area:
http://chiclassiccomp.org
Hello ccmp'ers - July is almost here and that means it's time for me
to start making noise about our yearly Midwestern weekend-of-fun.
This year's Vintage Computer Festival Midwest will be held a bit
earlier than in previous years, owing to the usual scheduling
conflicts with holidays and other events. The weekend for 2014 is
September 13-14.
Those coming from out of town and staying over night should call the
hotel ASAP. Registration at the group rate has been open a few weeks
now but last I heard rooms are still available.
If you would like table space, please email me privately with your
requirements and what you'd like to display and or sell. Most of the
provided tables are 2'x5'. If you can bring your own folding table,
please do! We run out of tables before we run out of space to put
them.
We've got a new site up with actual content, including an
ever-expanding FAQ. Have a look and feel free to post about anything
not covered there:
http://vcfmw.org
See you in September!
-j
--
silent700.blogspot.com
Retrocomputing and collecting in the Chicago area:
http://chiclassiccomp.org
> To the best of my recollection, the 5170 in its native form did not
> include a trim panel. However, it was included (ISTR anyway) with the
> "sit the box vertically on the floor" IBM kit.
>
>--Chuck
Those were actually two different options. The grey back panel came standard
with all 5170 AFAIK. Since they were only put on by Velcro most are lost
(like the front lock keys). The tower option (or as it is formally known:
Personal Computer AT Floor Standing Option 6450218) allowed you to stand up
the 5170 on its side. In fact you cannot use both the grey back panel and
the Floor Standing Option together. Check out VCF - I have pictures of both
of posted.
I am very pleased to announce, and be done with, the scanning of a
small stack of CompuServe Magazine, the magazine sent to subscribers
of the online service of the same name. There are 19 issues in all,
various months from 1990, 91 and 92. They're full of ads for "The
Mall," CompuServe's online shopping service, with a good sampling of
the products of the times. The articles cover a wide range of topics
(and how they're accessible on their service) as well as predictions
of CompuServe's existence for decades to come. Not much mention of
this "Internet" thing...
Due to the size of the files and the ease of reading documents in
their browser, I uploaded the scans to archive.org instead of our
usual docs site. All of the issues should be accessible with this
search:
https://archive.org/search.php?query=compuserve%20magazine
Enjoy!
- jht
--
silent700.blogspot.com
Retrocomputing and collecting in the Chicago area:
http://chiclassiccomp.org
I have one of each in their original boxes, tested working, extra
books/manuals, programs, etc.
Also a number of C64 that have issues, and some untested TI99s.
LOTS of AC adapters for Atari, Commodore machines.
Cindy Croxton
Electronics Plus
1613 Water Street
Kerrville, TX 78028
830-792-3400 phone
830-792-3404 fax
sales at elecplus.com
AOL IM elcpls
I might, but will be out of town until sept. I may even have that same tape - I have a drive and a number of tapes.
"E. Groenenberg" <quapla at xs4all.nl> wrote:
>
>I found a TU-60 tape with what is apparently CAPS-11.
>
>The tape label has the following texts :
>DEC-11-OTSYA-A-TC
>CAPS-11 V01-02
>SYSTEM CASSETTE
>
>A loose label lists the (apparent) contents date 09-aug-73 :
>
>CTLOAD SYS 08-aug-73
>CAPS11 S8K 09-AUG-73
>PIP SRU 09-AUG-73
>EDIT SLG 09-AUG-73
>LINK SRU 09-AUG-73
>ODT SLG 09-AUG-73
>PAL SRU 09-AUG-73
>DEMO PAL 09-AUG-73
>
>Is the anybody who is able to image this tape so the community
>can us it?
>
>Ed
>
>--
>Dit is een HTML vrije email / This is an HTML free email.
>Zeg NEE tegen de 'slimme' meter.
>
Hello, all,
I am in the midst of restoration of a very old (1964-ish) electronic calculator called the Wyle Laboratories Scientific Model WS-02. This is a transistorized electronic calculator that uses a magnetostrictive delay line for register storage, and a CRT display for showing the working registers and memory registers. The CRT is driven by sine/cosine signals to generate fully-formed stroke-style digits. I don't know if it's magnetically or electrostatically deflected...is there any easy way to tell? There are some coils around the neck of the CRT, but they are not as large as I'm used to seeing on CRT's of this size (8").
The question that I have is that I want to test out the power supply circuitry to make sure that all is healthy there. I have removed the logic module from the machine (the logic module contains all of the calculating and display generation logic, and comes out as a unit). I have also disconnected the video driver board. The connector at the back end of the CRT is unplugged. There are a couple of wires that go to the coils around the neck of the CRT, but they are connected to the video driver board, which is disconnected. The high voltage connector from the flyback is still connected to the CRT.
At this point, I've traced out the main logic voltages (+12, -12) and a -30V supply that are used throughout the machine.
I want to slowly bring up the power supply with a Variac and monitor the voltages and ripple to see if the power supply is still healthy. However, I'm concerned about having the high voltage supply connected to the CRT without any other connections on it? Could the high voltage supply be hurt because it may be missing signals it needs to oscillate properly? Could this hurt the CRT? I don't know enough about the way this kind of stuff works to know if I could cause any problems, either with the CRT, or the high voltage supply.
I'd appreciate any guidance that may be given prior to trying to light this thing up.
Thank you,
Rick Bensene
The Old Calculator Museum
http://oldcalculatormuseum.com
>
> From: Al Kossow <aek at bitsavers.org>
> Date: Sat, 16 Aug 2014 12:21:57 -0700
> Subject: Re: Tape Oven (was Re: An 8 Inch Disk Lathe)
> On 8/15/14 11:02 AM, Al Kossow wrote:
>
> Well, there is a new winner in the "most evil tape category" that makes
> MRX V look good in comparison.
>
> Wabash (who would have guessed..)
>
> The Wabash is BAD
>
I would think that 3M Blackwatch would be at the top of your list.
--
Michael Thompson
It's obvious - two people used it at once for a couple of years.
Presumably they had half the keyboard each, and fought over the
mouse.
On 18/08/2014 1:08 p.m., Chris Pye wrote:
> On 18 Aug 2014, at
10:25 am, Steven Landon [1] wrote:
>
>> Replacing my iMac finally
after 7 years of good use, Ive decided to upgrade
> How do you get 7
years use out of a machine that's only 5 years old?
Links:
------
[1] mailto:slandon110 at gmail.com
I found a TU-60 tape with what is apparently CAPS-11.
The tape label has the following texts :
DEC-11-OTSYA-A-TC
CAPS-11 V01-02
SYSTEM CASSETTE
A loose label lists the (apparent) contents date 09-aug-73 :
CTLOAD SYS 08-aug-73
CAPS11 S8K 09-AUG-73
PIP SRU 09-AUG-73
EDIT SLG 09-AUG-73
LINK SRU 09-AUG-73
ODT SLG 09-AUG-73
PAL SRU 09-AUG-73
DEMO PAL 09-AUG-73
Is the anybody who is able to image this tape so the community
can us it?
Ed
--
Dit is een HTML vrije email / This is an HTML free email.
Zeg NEE tegen de 'slimme' meter.
I've imaged a little stack of Displaywriter 8" disks and am starting in
on filesystem organization. With an EBCDIC filter I can see the data
plain as day. I've also got experience stitching together the
DisplayWriter files that come from the DOS-based system, so if I could
get the file allocation scheme figured out and lift off whole files from
these disk images, I bet the same conversion code would work on the
resulting data.
I've browsed the manuals on Bitsavers, but of course IBM never intended
their users to actually look at the bytes on the disk. So none of the
information was geared towards revealing the file allocation secrets.
Is there any reference material out there to help me decode (or find)
the file allocation structures?
- David
Replacing my iMac finally after 7 years of good use, Ive decided to upgrade
The specs are as follows
Core 2 Duo 3.06ghz
14GB RAM
500GB Hard Drive
Adobe Creative Suite 6
Final Cut Pro 7 Studio
Final Cut Pro X
Office 2011
Its a nice machine great for video editing and document processing and
other tasks, Ive used it to work with my vintage machines.
Asking $750 or best and can deliver to VCFMW/ECCC
Hi all --
As I mentioned a few days back, I recently picked up an 11/05 that's in
need of some troubleshooting. This weekend I've started getting more
acquainted with the details of the CPU set (reading through the
schematics and the various manuals (which are quite thorough, fortunately.))
Before I start getting too deep with this, I figured I'd see if maybe
I'm overlooking something simple -- I'm relatively green with Unibus
systems.
So here's what I'm seeing:
- At power-up, the system comes up in a halted state and I can load
addresses from the front panel switches into the address register, and
these are correctly loaded -- no stuck bits, etc.
- Toggling "Start" causes the "Run" light to go on and the system seems
to be doing... something (the address/data lamps flicker). Attempting
to halt the machine at this point does not work, but if I have the
"Enable/Halt" switch set to "Halt" and hit "Start" again the machine
does stop and the "Run" light goes out.
- Hitting "Exam" while halted has no effect (no data is loaded,
addresses are not incremented), and seems to lock the machine up -- I
can no longer load addresses via the front panel. Hitting "Start" still
puts the machine in the "Run" state outlined above, and once halted
again, "Load Addr" works again.
- Hitting "Cont" while halted puts the machine back in the "Run" state
regardless of the state of the "Enable/Halt" switch.
So it definitely looks like the Run state control logic should be looked
at...
The machine's configuration is very basic: the CPU set (M7260/M7261),
an 8KW core board set (G110, G231, H215), and an M903C Unibus
terminator. I've verified that these are all in the correct slots. Bus
grant cards are in the D slot of all four Unibus slots (and inserted in
the correct orientation, I hate those things...)
Thus far I've tested the power supply and voltages are spot on with
acceptable ripple. AC LO L and DC LO L are correctly going high after
power on, so that shouldn't be causing issues. I've gone through and
cleaned everything including the edge connectors. (I left the core
plane undisturbed, it's already been banged around enough...) I
double-checked the backplane for bent pins that might be touching other
pins.
I've checked the processor clock, and it's running properly and at the
correct rate (310ns). I've run the machine with just the processor set
with the same behavior.
Any other simple things I should check before I get seriously involved
with this thing? Fortunately I have a set of KM-11 replicas I got from
Guy Sotomayor a few years back so that will help immensely in debugging...
Thanks as always,
Josh
On 08/15/2014 04:56 AM, jwsmobile wrote:
> Any unit needs to be evaluated for internal components which may not handle
> shipping stresses and disassembled if possible before crating. CRT's should
> never be left with the factory mounts anymore for instance.
On the back of that, are CRTs best shipped with the screen facing down, or
forwards? Presumably it's also wise to unplug the neck board from the CRT
and secure it. What do people do about the HV transformer? They're normally
bulky/heavy and can lack support other than the solder connections on the PCB.
I?ve shipped tons of stuff through The UPS Store. They always do a great job packing.?
Cameron