Re:VCF SE Photos

[Earl Baugh via cctalk]

> Date: Wed, 3 May 2017 08:03:19 -0400
> Subject: VCF SE Photos
>
> Here are my photos from the VCF South East April 30/May 1.  Roswell, GA
> hosted by Mims' Computer History Museum of America
>
> http://vintagecomputer.net/browse_thread.cfm?id=677
>
>
Just to clarify something here about VCF South East... the Computer Museum
of America
(that's the official name) provides the venue for the event, but the
Atlanta Historical Computing
Society (AHCS) actually recruits and covers the expense for having the
speakers at the show
and also recruits and organizes all the exhibits of the VCF proper (aside
from the two professionally
constructed and very informative exhibits that the Computer Museum
provides).

In the first year the Computer Museum of America did recruit the speakers,
but AHCS has
done it since.And the AHCS has always recruited and organized the
exhibits for the VCF proper.

Just want to make both of the partners in this endeavour get proper credit
here.

Earl

Re: IBM 4331 Mainframe 3 phase converter

[Bob Rosenbloom via cctalk]

I use a solid state one, an older version of this:
http://www.phasetechnologies.com/downloads/products/phase-perfect/pt330specs.pdf

Bought on ebay quite a few years ago.

I also have a small Phoenix rotary phase converter, also from ebay. This 
one seems to have unbalanced outputs.

I believe it is for motor loads only.

Bob



On 5/3/2017 1:23 PM, Curious Marc via cctalk wrote:

Let me know what you come up with for the 3 phase converter solution. I have 
the exact same problem right now to provide power for my 3 3420 tapes and the 
3803 controller. Also have 220V 50A single phase coming in the shop (er, 
garage), courtesy of the EV charger.
Marc

On Apr 30, 2017, at 9:38 PM, Guy Sotomayor Jr via cctalk 
 wrote:

Just to let folks know that I finally moved the IBM 4331 Mainframe this past 
weekend
from where it was currently stored to my shop.  Pictures are here:
https://www.flickr.com/gp/150223282@N04/NrX91K 


As can be seen in the pictures, it filled a 26’ box truck that I had rented for 
this purpose.
Right now I just have it placed somewhat in my shop.  Some early tasks will be:
   * I have to verify that I have everything.  Even if I missed some items, 
they won’t be
 scrapped.  I just need to go over what is currently in my shop and verify 
that I didn’t
 leave anything behind.  I’m mostly worried about cables at this point.
  * I have to figure out some way to produce enough “clean” 3-phase power to 
run the
peripherals (the CPU is 220v single phase) as I only have 220v single phase 
coming
into my shop.

Starting to power it up will probably be a while yet.  ;-)

TTFN - Guy





--
Vintage computers and electronics
www.dvq.com
www.tekmuseum.com
www.decmuseum.org

Re: SimH IBM1130 GUI appears broken

[JAMES FEHLINGER via cctalk]

In case anybody here is interested, I've discovered a
satisfactory (to me, at least) resolution to this problem.

I downloaded Carl Claunch's DMS disk (dms32k25011403.dsk)
from bitsavers.org.

This version of DMS is built for a 1403 printer and
a 2501 card reader, whereas the DMS that comes with the software
kit from ibm1130.org is built for an 1132 printer
and a 1442 reader/punch (and you do get 32k of memory
with Carl's disk instead of 16k).

So you have to change any initial SimH command files to
reflect the new configuration; e.g. with "guijob" you
need to add:

set cpu 32k
set prt 1403
set cr 2501

Also, any sample Fortran programs need to have their IOCS
control records changed.  I.e., "1132 PRINTER" becomes
"1043 PRINTER" and "CARD" becomes "2501 READER", as per the
table on p. 41 of the Reference Guide document from ibm1130.org.
Additionally, the Fortran logical unit numbers in your
Fortran programs need to change as per the table on p. 41:
"READ(2, ...)" becomes "READ(8, ...)" and
"WRITE(3, ...)" becomes "WRITE(5, ...)".

Using this DMS disk (and with the appropriate changes to configuration
files and Fortran decks), the latest SimH Win32 build (from May 2, 2017)
works fine -- the simulator goes into Wait and allows access to the
GUI following a boot of DMS and after a job finishes executing.

The 2250 Graphics Display Unit and plotter sample programs from
ibm1130.org also work, with appropriate changes to their config
files.

You still can't use CPU throttling (to slow down the register light show)
unless you're willing to use the unrealistic "IMM STOP", load card reader,
"boot dsk" sequence to run a program.

I also haven't been able to get Carl Claunch's Lunar Lander
program (there's a download link in an IBM1130 Google group post)
to get past its initial instructions (on the console) and
first couple of prompts for input.  Seems to have something to do
with not reading properly from the keyboard.  But that's another story.  ;->

Re: SimH IBM1130 GUI appears broken

[JAMES FEHLINGER via cctalk]

One additional observation:

If I turn on throttling with values ranging from

"set throttle 100k"
to
"set throttle 99%"

then **all** the Win32 development versions of IBM1130.exe I've
tried, including the ones from before Jan. 29, 2016, exhibit the
behavior that I'm interpreting as "broken" -- i.e.,
the simulator never enters a "Wait" (and drops back into
the "sim>" prompt, thereby freeing up the GUI), either after
DMS boots or after a program finishes executing.

The Win32 development executables from github I've tried have
all been running on a Windows XP machine, but I also tried the
experiment on a 64-bit Windows 7 machine using the 64-bit IBM1130.exe from
a suite of SimH executables I built myself using gcc (5.1.0) under MinGW
back in June, 2015.  That 64-bit/Win 7 version behaves the
same as the 32-bit/WinXP Win32 development builds from
on or before January 7, 2016 -- i.e., correctly if throttling
is not used, broken otherwise.

Re: VCF SE Photos

[Evan Koblentz via cctalk]

Here are my photos from the VCF South East April 30/May 1.  Roswell, GA
hosted by Mims' Computer History Museum of America

http://vintagecomputer.net/browse_thread.cfm?id=677



For anyone interested: the picture of my robot 
(http://vintagecomputer.net/vcfse-5/Koblentz_Lego_Robot.jpg) doesn't 
show the vintage computer and interface box powering it. :)  I used a 
Laser 128, reproduction Lego/Apple II card (thanks to Jon C. aka Systems 
Glitch), and original Lego Dacta TC interface box.

RE: Elgar IPS1100 UPS

[Ali via cctalk]

Chuck,

Is this still available? Any idea as to weight? Also how much did batteries 
usually run you? I am considering using it as the main PSU for a bunch of my 
vintage systems (PS/2s and 386/486 class machines). But may just be cheaper to 
buy a bunch of smaller ones locally...b

-Ali



> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Chuck
> Guzis via cctalk
> Sent: Saturday, April 29, 2017 11:02 AM
> To: CCtalk
> Subject: FFS: Elgar IPS1100 UPS
> 
> Much of what used to be power-hungry connectivity hardware for me has
> gone low-power, so I'm scaling back my UPS setup some.
> 
> I've got an Elgar IPS1100, nominally rated at 1KVA sine-wave continuous
> (9.2A  60 Hz 120VAC).  It's a pretty good-sized UPS, with fan cooling.
> It takes 48V in SLA cells (has an internal shelf for 8 6V 12AH ones),
> but I've always run it from 4 garden-tractor batteries.
> 
> It's pretty good-sized; about 12"x13"x15" and heavy (big transformer).
> Made in 1990, has 6 AC receptacles on the back along with an RS-232
> connector for status notification.
> 
> Back in the day, this was a pretty high-end unit; manufacture date is
> 05/90.
> 
> Yours for shipping; batteries not included.
> 
> --Chuck

Re: Ohio Scientific Universal RAM Board GW-OSI-RAM1

[Ethan Dicks via cctalk]

On Wed, May 3, 2017 at 8:37 PM, Systems Glitch via cctalk
 wrote:
>> Is the IM6100/6120 still easy to find?  I'dve thought that the supply
>> was exhausted by now.
>
> One of my *US* parts supplier apparently has qty 500 in stock for the IM6100s!

Nice.  They are definitely not as in-demand as the IM6120.

> With the failure rate I've been seeing, figure at least 350 of them are 
> viable, maybe more. I've also had a bunch come out of the woodwork from other 
> hobbyists with this project.

I picked up a *tube* of them about 15 years back and have never come
across a project for them (but I do have real DECmates of all the
varieties, so I need both IM6120 _and_ IM6100 chips for spares).

I have done a little with OSI machines (I've long wanted to fiddle
with a C3P because a family friend had one when I was growing up) and
have been watching the development of the your 560Z board, even if I
don't have a place to stick one at the moment.

-ethan

Re: Ohio Scientific Universal RAM Board GW-OSI-RAM1

[Systems Glitch via cctalk]

> Is the IM6100/6120 still easy to find?  I'dve thought that the supply
> was exhausted by now.

One of my *US* parts supplier apparently has qty 500 in stock for the IM6100s! 
With the failure rate I've been seeing, figure at least 350 of them are viable, 
maybe more. I've also had a bunch come out of the woodwork from other hobbyists 
with this project.

> Octal for me is quite familiar for 12 bits;  I can't recall ever seeing
> a 12-bit word that didn't use it.  On the other hand, 16 bits is a
> natural for hex--and only gets confusing when it's in octal.

I want to say the only 12-bit work I've done has always been octal (PDP-8), but 
8- and 16-bit has been a mix. I can switch between them, but it's kinda like 
using vim and $graphical_work_editor -- you use vim on a weekend long hack 
session and you keep hitting `ESC:wq` in $graphical_work_editor!

Thanks,
Jonathan

Re: Ohio Scientific Universal RAM Board GW-OSI-RAM1

[Chuck Guzis via cctalk]

On 05/03/2017 04:49 PM, Systems Glitch via cctalk wrote:
> Finished building a prototype mezzanine board and testing with the
> IM6100 (PDP-8 on a chip) in the 560Z board today. Full writeup:
> 
> The lamp register is on a mezzanine for a few reasons. First off,
> octal vs. hex grouping! It really throws me off to try and interpret
> one on the other. Second, it allows remote mounting on a ribbon
> cable, i.e. board can be mounted to a front panel. Third, I'll likely
> design a 7-segment version.

Is the IM6100/6120 still easy to find?  I'dve thought that the supply
was exhausted by now.

Octal for me is quite familiar for 12 bits;  I can't recall ever seeing
a 12-bit word that didn't use it.  On the other hand, 16 bits is a
natural for hex--and only gets confusing when it's in octal.

--Chuck

Ohio Scientific Universal RAM Board GW-OSI-RAM1

[Systems Glitch via cctalk]

Finished building a prototype mezzanine board and testing with the IM6100 
(PDP-8 on a chip) in the 560Z board today. Full writeup:

http://www.glitchwrks.com/2017/05/03/gw-osi-ram1-universal-ram

There are a couple of tweaks required, but I should be doing a first production 
run of boards before long. This board is:

* 128 KW, 12-bits
* Optional memory management/bank switching
* No hard-to-find/expensive ICs (8T26, et c.)
* All through hole
* Includes lamp register mezzanine header
* Largeish prototype area

The lamp register is on a mezzanine for a few reasons. First off, octal vs. hex 
grouping! It really throws me off to try and interpret one on the other. 
Second, it allows remote mounting on a ribbon cable, i.e. board can be mounted 
to a front panel. Third, I'll likely design a 7-segment version.

Thanks,
Jonathan

Re: Beautifully-posed photos of various kinds of retro kit

[Geoffrey Oltmans via cctalk]

Looks great!

On Wed, May 3, 2017 at 6:52 AM, Liam Proven via cctalk <
cctalk@classiccmp.org> wrote:

> From the Apple ][ up to PowerMac G4s. So, possibly a bit new for many
> of you folk, but I enjoyed them and thought others might too.
>
> http://podstawczynski.com/retro/beauty_shots.html
>
> --
> Liam Proven • Profile: https://about.me/liamproven
> Email: lpro...@cix.co.uk • Google Mail/Talk/Plus: lpro...@gmail.com
> Twitter/Facebook/Flickr: lproven • Skype/LinkedIn/AIM/Yahoo: liamproven
> UK: +44 7939-087884 • ČR/WhatsApp/Telegram/Signal: +420 702 829 053
>

SimH IBM1130 GUI appears broken

[JAMES FEHLINGER via cctalk]

I originally attempted to post this to s...@trailing-edge.com,
but they have a policy of automatically rejecting any messages from
non-subscribers, and as I only read that list via the Web
interface, it doesn't seem worth it to subscribe just in order to
post one message.  However, I suspect that Brian Knittel and/or
Mark Pizzolato probably see stuff that's posted here too.

---

Once upon a time (i.e., prior to early January, 2016), the
SimH IBM1130 GUI worked like this (on Windows):

You start the simulator in a console window and issue the
commands (either manually or via a command file argument):

-
reset
detach prt
delete printer.txt

att dsk0 dms.dsk

att prt printer.txt
boot dsk
-

At this point, the simulator, after having booted the DMS
operating system, enters a "Wait state" and drops
back to the SimH prompt. The console window shows
(if you've started the simulator with the command file
argument "guijob" containing the above commands):

-
IBM 1130 Simulator V4.0-0 Beta git commit id: e8ea427d
guijob-2> detach prt
Not attached
PRT: creating new file
Loaded DMS V2M12 cold start card

Wait, IAR: 002A (4c80 BSC I ,00028 )
sim>
-

The line printer icon in the GUI now "shows paper" which,
if you view it (thereby "tearing it off" and causing
the creation of a new printer file) will show the boot
message from DMS.

At this point, you can submit a "job deck" by dragging a
file to the GUI's card reader icon -- e.g., one of the
decks from the software kit at ibm1130.org
(such as a job to print the LET [Location Equivalence Table] list.job,
a sample Fortran program for.job or one of the more substantial
Fortran programs like csort.job or swave.job, etc.)

Each time you drag the "job deck" file over the GUI's
card reader icon, the depicted input tray "fills up" and
the console shows, e.g.

sim> attach cr "C:\ibm1130\dms\list.job"
sim>

You then click the green PROGRAM START button, the blinkenlights
flash briefly, the card reader "empties", the printer "shows paper"
(if it was empty beforehand) and, most significantly here,
**the simulator enters Wait state and drops back to its prompt
when the program has finished**. The console window now shows (e.g.)

sim> attach cr "C:\ibm1130\dms\list.job"
sim> cont
Wait, IAR: 002A (4c80 BSC I ,00028 )
sim>

You can continue to submit jobs, without rebooting DMS, by dragging
a new deck to the card reader icon, and clicking PROGRAM START.
Each time, the simulator swallows the "cards", flashes the blinkenlights,
adds output to the line printer file, and enters Wait and drops
back to its prompt.

The "git commit id" in the IBM1130.exe used for the above example is e8ea427d 
from
https://github.com/simh/Win32-Development-Binaries archive
simh-4.0-Beta--2016-01-07-e8ea427d.zip (January 7, 2016).

If I use the IBM1130.exe from the very next archive
simh-4.0-Beta--2016-01-29-b8049645.zip (January 29, 2016), I get
a different result (using the same file of startup commands):

-
IBM 1130 Simulator V4.0-0 Beta git commit id: b8049645
guijob-2> detach prt
Not attached
PRT: creating new file
Loaded DMS V2M12 cold start card
-

Here, the simulator has not entered a Wait state and dropped back
to a prompt. If I try to drag a "job deck" file to the card reader
icon, the attempt is rejected with a Windows error gong and
the card reader remains empty.

I can get around this by performing the following:

Click the red "IMM STOP" button.

Drag the "job deck" file to the card reader icon. The reader
"fills up".

In the console window, type "boot dsk" to re-boot DMS
(clicking PROGRAM START doesn't work here!),
The card reader empties, the blinkenlights flash and apparently
the program runs. However, the simulator does not enter
Wait state when the program is finished. (Nor can I click on
the lineprinter icon to "tear off" and view the results at this point.)

However, if I again click the red "IMM STOP" button and then
click the lineprinter icon, I can see the results of the
program that just ran. Or, I can click IMM STOP, submit a
new job deck to the card reader, type "boot dsk" (you have
to re-boot DMS; PROGRAM START won't work!),
and the new program will run and add its results to the lineprinter output.

The very latest Win32 build of IBM1130.exe, from
simh-4.0-Beta--2017-05-02-e9dea63b.zip (May 2, 2017)
exhibits slightly different (but still apparently broken)
behavior.

When the startup command file executes, the initial result looks
correct (i.e., the same as the January 7, 2016 result above):

-
IBM 1130 Simulator V4.0-0 Beta git commit id: e9dea63b
guijob-2> detach prt
Not attached
PRT: creating new file
Loaded DMS V2M12 cold start card

Wait, IAR: 002A (4c80 BSC I ,00028 )
sim>
-

Note that the simulator has entered the Wait state and dropped back
to its prompt, and you can now 

Re: IBM 4331 Mainframe

[Curious Marc via cctalk]

Let me know what you come up with for the 3 phase converter solution. I have 
the exact same problem right now to provide power for my 3 3420 tapes and the 
3803 controller. Also have 220V 50A single phase coming in the shop (er, 
garage), courtesy of the EV charger.
Marc

On Apr 30, 2017, at 9:38 PM, Guy Sotomayor Jr via cctalk 
 wrote:

Just to let folks know that I finally moved the IBM 4331 Mainframe this past 
weekend
from where it was currently stored to my shop.  Pictures are here: 
https://www.flickr.com/gp/150223282@N04/NrX91K 


As can be seen in the pictures, it filled a 26’ box truck that I had rented for 
this purpose.
Right now I just have it placed somewhat in my shop.  Some early tasks will be:
  * I have to verify that I have everything.  Even if I missed some items, they 
won’t be
scrapped.  I just need to go over what is currently in my shop and verify 
that I didn’t
leave anything behind.  I’m mostly worried about cables at this point.
 * I have to figure out some way to produce enough “clean” 3-phase power to run 
the
   peripherals (the CPU is 220v single phase) as I only have 220v single phase 
coming
   into my shop.

Starting to power it up will probably be a while yet.  ;-)

TTFN - Guy

Re: Beautifully-posed photos of various kinds of retro kit

[Ed via cctalk]

Nice  work Liam!
 great to see things  displayed in a  'setting'  rather  than just   
computers on shelves!
KUDOS! Ed#
 
 
In a message dated 5/3/2017 4:52:30 A.M. US Mountain Standard Time,  
cctalk@classiccmp.org writes:

>From the  Apple ][ up to PowerMac G4s. So, possibly a bit new for many
of you folk,  but I enjoyed them and thought others might  too.

http://podstawczynski.com/retro/beauty_shots.html

--  
Liam Proven • Profile: https://about.me/liamproven
Email:  lpro...@cix.co.uk • Google Mail/Talk/Plus:  lpro...@gmail.com
Twitter/Facebook/Flickr: lproven •  Skype/LinkedIn/AIM/Yahoo: liamproven
UK: +44 7939-087884 •  ČR/WhatsApp/Telegram/Signal: +420 702 829  053

Re: Question about an SGI Fuel issue / fuel sensors ( current - temp )

[Jon Elson via cctalk]

On 05/03/2017 09:57 AM, Mazzini Alessandro via cctalk wrote:


I've been told that the temperature sensors on Fuels are subject to get 
defective.
Is the same valid for current sensors ?


I'd take it apart, maybe even the power supply, and reseat 
all connectors, and then try it again.  It COULD be a bad 
sensor, but is more likely to be a bad connection.


Jon

Re: VCF SE Photos

[Brad H via cctalk]

Thanks for the pics!
Curious.. the Mark-8 in the museum.. that's a repro, right?  I thought they got 
a few real ones from Bugbook.
Brad


Sent from my Samsung device

 Original message 
From: william degnan via cctalk  
Date: 2017-05-03  5:03 AM  (GMT-08:00) 
To: "General Discussion: On-Topic and Off-Topic Posts"  
Subject: VCF SE Photos 

Here are my photos from the VCF South East April 30/May 1.  Roswell, GA
hosted by Mims' Computer History Museum of America

http://vintagecomputer.net/browse_thread.cfm?id=677

Question about an SGI Fuel issue / fuel sensors ( current - temp )

[Mazzini Alessandro via cctalk]

Hello,

Since there are a lot of experts here ( I guess, at least ), I would like for 
an opinion / ideas / knowledge.

I've been told that the temperature sensors on Fuels are subject to get 
defective.
Is the same valid for current sensors ?

The question is due to this... I just got a Fuel donated to me, very kindly, 
that didn't turn on once I tried to. (the old owner didn't turn it on in a 
while, I was told)
I've connected to the L1 diagnostic serial port on the mb and ...
The env system prevents it from turning on for 2 reasons

1) XIO V12 bias with a value of 5.81 , considered too low
2) Odyssey temp fix at 93c at box turned off

But I managed to run env while the 30 seconds timer announcing the power down 
were running and... it shows that 12V and 12V IO are perfect with the psu 
"running" so... any idea if the xio v12 bias sensor is connected with the 
odyssey temp sensor and thus could be simply faulty.
I could do a test turning off env monitoring, but I would prefer to do it only 
after hearing opinions . given I don't know what kind of damages could happen 
if v12 bias is right , instead, and the system is brought up

Environmental monitoring is enabled and running.

DescriptionState   Warning Limits Fault Limits   Current
-- --  -  -  ---
   12VEnabled  10%  10.80/ 13.20  20%   9.60/ 14.40   12.12
12V IOEnabled  10%  10.80/ 13.20  20%   9.60/ 14.40   12.19
5VEnabled  10%   4.50/  5.50  20%   4.00/  6.005.10
  3.3VEnabled  10%   2.97/  3.63  20%   2.64/  3.963.35
  2.5VEnabled  10%   2.25/  2.75  20%   2.00/  3.002.47
  1.5VEnabled  10%   1.35/  1.65  20%   1.20/  1.801.47
5V auxEnabled  10%   4.50/  5.50  20%   4.00/  6.005.12
  3.3V auxEnabled  10%   2.97/  3.63  20%   2.64/  3.963.29
PIMM0 12V biasEnabled  10%  10.80/ 13.20  20%   9.60/ 14.400.00
  Asterix SRAMEnabled  10%   2.25/  2.75  20%   2.00/  3.002.52
   Asterix CPUEnabled  10%   1.44/  1.76  20%   1.28/  1.921.61
PIMM0 1.5VEnabled  10%   1.35/  1.65  20%   1.20/  1.800.00
PIMM0 3.3V auxEnabled  10%   2.97/  3.63  20%   2.64/  3.963.30
  PIMM0 5V auxEnabled  10%   4.50/  5.50  20%   4.00/  6.005.15
  XIO 12V bias  Fault  10%  10.80/ 13.20  20%   9.60/ 14.405.81
XIO 5VEnabled  10%   4.50/  5.50  20%   4.00/  6.002.42
  XIO 2.5VEnabled  10%   2.25/  2.75  20%   2.00/  3.001.21
  XIO 3.3V auxEnabled  10%   2.97/  3.63  20%   2.64/  3.961.60

DescriptionState   Warning RPM  Current RPM
-- --  ---  ---
FAN 0  EXHAUSTEnabled  920 1129
FAN 1   HDEnabled 1560 2229
FAN 2  PCIEnabled 1120 1476
FAN 3XIO 1Enabled 1600 3869
FAN 4XIO 2Enabled 1600 3699
FAN 5   PSEnabled 1600 1980

   Advisory  Critical  Fault Current
DescriptionState   Temp  Temp  Temp  Temp
-- --        -
NODE 0Enabled  60C/140F  65C/149F  70C/158F  20c/ 68F
NODE 1Enabled  60C/140F  65C/149F  70C/158F  21c/ 69F
NODE 2Enabled  60C/140F  65C/149F  70C/158F  20c/ 68F
PIMM  Enabled  60C/140F  65C/149F  70C/158F  20c/ 68F
ODYSSEYActive  60C/140F  65C/149F  70C/158F  93c/199F
BEDROCK   Enabled  60C/140F  65C/149F  70C/158F  20c/ 68F



Alessandro

The inventor of the ARM chip donates first computer he ever built (40min video)

[Liam Proven via cctalk]

https://youtu.be/8_33Yv5LsSs

Professor Steve Thurber -- co-inventor of the ARM processor, the BBC
Micro and much more -- donates his first ever computer, and arguably
the first prototype of the BBC Micro, to The Centre for Computing
History in this fascinating (& very cute) video.
https://youtu.be/8_33Yv5LsSs

Well worth 40min of your time.



-- 
Liam Proven • Profile: https://about.me/liamproven
Email: lpro...@cix.co.uk • Google Mail/Talk/Plus: lpro...@gmail.com
Twitter/Facebook/Flickr: lproven • Skype/LinkedIn/AIM/Yahoo: liamproven
UK: +44 7939-087884 • ČR/WhatsApp/Telegram/Signal: +420 702 829 053

Re: AB "Multibus"?

[dwight via cctalk]

Why do you ask?

Dwight


From: cctalk  on behalf of Ken Seefried via 
cctalk 
Sent: Tuesday, May 2, 2017 8:28:59 PM
To: cctalk@classiccmp.org
Subject: AB "Multibus"?

Are Allen-Bradley Multibus-1 form factor cards actually Multibus
compliant or something proprietary?

KJ

VCF SE Photos

[william degnan via cctalk]

Here are my photos from the VCF South East April 30/May 1.  Roswell, GA
hosted by Mims' Computer History Museum of America

http://vintagecomputer.net/browse_thread.cfm?id=677

Beautifully-posed photos of various kinds of retro kit

[Liam Proven via cctalk]

>From the Apple ][ up to PowerMac G4s. So, possibly a bit new for many
of you folk, but I enjoyed them and thought others might too.

http://podstawczynski.com/retro/beauty_shots.html

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Liam Proven • Profile: https://about.me/liamproven
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