> From: Paul Birkel
> Maaaaaybe there are three ribbon cables back there
Sure looks like it, and running to a standard MASSBUS connector, to boot.
(Not that I have any use for the latter - absolutely no MASSBUS cables at
all. But one could just run flat cables from this, to one's RH11/RH70.)
I don't see a second MASSBUS connector, wonder what they do about
termination? Maybe it's onboard? So I guess one could only have one
of these things per MASSBUS port? Not really a problem, of course! ;-)
We _definitely_ need to put these things in 'production'.
Noel
> From: Ian S. King
> When I left in 2014, LCM's Massbus disk emulator was working quite well
> indeed, and was running in 'production' ... ISTR the plan was always to
> open-source the hardware and firmware, too.
I'm interested in this (as I suspect are lots of other people with machines
that can use MASSBUS disks). Can you briefly describe what it was? Does
anyone know anything about the status of the plans to open-source it?
Noel
> From: "Mark J. Blair" <nf6x at nf6x.net>
> Subject: Re: Reasonable price for a complete SOL-20 system?
>
> The gunstock wood origin story sounds more plausible, but less fragrant.
>
> --
> Mark J. Blair, NF6X <nf6x at nf6x.net>
Not to rain on anyone's parade, but speaking as an owner of probably one of
the first Sol-20's in the UK I would have to comment that the wood (which we
always thought was a nice touch) was actually quite light in appearance and
weight and if anyone had suggested wharf wood at that time I am fairly sure
the suggestion would have been met with a degree of scepticism as would the
suggestion of gun stock wood (I had achieved my marksman status by then and
had some small experience of the feel of the stock in the hand and
shoulder). For all that, I liked the SOL-20 as the best word processor on
the planet at that time (with the Electric Pencil ROM) as it took great
advantage of the VDM-1 memory-mapped display board to achieve what products
like WordStar struggled for years to do. In fact, we often used to marry
the VDM-1 to the Horizon for that very reason - that and the fact that we
could then play ATC (Air Traffic Controller) on the North* which was a great
mapped video game unavailable to serial terminals.
It was also liked because it had a great keyboard with a good feel and, turn
and turn about, could also have the North* drives bolted on to make a great
little twin drive system. Another advantage was that we didn't have to
solder up all the boards and assemble it like the IMSAI and some of the
North* boards. I did love my IMSAI though, but the 8080 CPU was a drag as
everyone was gung-ho for the 'new-ish' Z80 even though CP/M was still in
8080-land. Then came Cromemco and everything changed with CDOS and Cromix.
People still wanted CP/M though - I recall even now assisting with porting
CP/M to a Cromemco Z2 I took down to the Byte Shop in London one weekend. Of
course, my IMSAI never flew better than when it was filled with Cromemco
boards and a 299B drive on the side :) - those lovely blinkenlighten!
Anyhoo - back to the SOL-20 - we always figured that the reason that the
wooden side panels were featured was simply because the Horizon (the Big Dog
at that time) was available with a very attractive wooden case cover for
those who preferred something other than a functional blue metal case (in
fact strangely remarkably similar to the blue of the SOL-20). Of course,
although opinion may vary, either was arguably more attractive in an office
than the metal mesh that SWTPC went with. I say this with some affection
since as I write this my foot leans against the case of my old SWTPC AC-30
cassette interface. The innards gave up the ghost long ago but I can't bring
myself to skip it as it brings back too many fond memories of a basement, an
SWTPC processor, a lovely dual 8" drive unit and FLEX.
In summary, if you don't mind an 8080 and you can get some decent drives for
it (we were never very fond of the Helios drives) a SOL-20 is a very nice,
well designed integrated system. I would have one again in a trice.
James
>
> Date: Sun, 16 Oct 2016 12:07:24 -0700
> From: "Ian S. King" <isking at uw.edu>
> Subject: Re: Unibus controller for MFM disks
>
> When I left in 2014, LCM's Massbus disk emulator was working quite well
> indeed, and was running in 'production' to keep down the hours on the RP06
> drives. ISTR the plan was always to open-source the hardware and firmware,
> too.
> --
> Ian S. King, MSIS, MSCS, Ph.D. Candidate
> The Information School <http://ischool.uw.edu>
> Dissertation: "Why the Conversation Mattered: Constructing a Sociotechnical
> Narrative Through a Design Lens
>
> Archivist, Voices From the Rwanda Tribunal <http://tribunalvoices.org>
> Value Sensitive Design Research Lab <http://vsdesign.org>
>
> University of Washington
>
I never got the Massbus disk emulator that I was promised for loaning the
LCM a board from my KS10.
--
Michael Thompson
Hi everyone,
I'm looking for the images of ROMs installed on the IOC (I/O controller)
board of Intel MDS-2 development systems. In particular I'm looking for
the content of the character generator ROM (A19-2708) and of firmware
ROMs (A50 to A53-4x2716). So far I had no success in googling them.
My goal would be to contribute a good emulation of MDS systems to MESS,
especially for what regards the look of the video terminal. Well, this
is the plan, when "real-life" is not inteferring too much...
Thanks a lot.
-- F.Ulivi
Since some need to possibly use current loop, I was searching and
thought it useful to bring this to people's attention. The TEC is also
one of the terminals in the video I posted a few days ago related to
"Jobs" if you care to look. I've used these and at the time the only
problem I had was dropping them on your foot, they are not light.
the vendor says that Bitsavers has the manual, which may make this a bit
attractive as well, saving looking all over the place for
documentation. The screen doesn't look great, but might be usable w/o a
huge amount of work.
Another thing that ones here may be able to use is that it has the video
output option installed, so one could drive a modern monitor, or
presentation projector in a display situation with this one.
I think the ones we had were a bit fancier, and had a block of
indicators on one side or the other that you could blink, this one does not.
1972-TEC-440-Serial-Terminal-/
http://www.ebay.com/itm/262674442502
no affiliation, just wish I had room for it, hope someone can use it.
i'll throttle myself for a few days unless I see a random 360/50 or so
for sale so I am not bothering those who don't like these. Apologies in
advance.
thanks
Jim
Apparently Paul Vixie's got a CDC Hawk disk pack from an Alpha Micro AM-100/T
that he'd like to get the bits off of (he'll worry about the file system
separately). I have a controller card in an unknown state but I don't have
any way of reading the disk pack, so it will probably be easier to do this
in a separate working system, which does not need to be Alpha Micro.
If you've got a means of doing this, I'll get you in touch with him.
--
------------------------------------ personal: http://www.cameronkaiser.com/ --
Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com
-- One learns to itch where one can scratch. -- Ernest Bramah -----------------
Hi all,
Looking for a Sun Enterprise E3xxx/E4xxx ? any model really. I have a few CPU modules and it would be great to have one of these machines up and running again. I?m in the UK ? and can collect.
Reasonable price paid J
PM if you have anything .
Cheers
Ian
These things came in all sorts of colors !Ec#
Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------
From: jim stephens <jwsmail at jwsss.com>
Date: 10/16/16 20:52 (GMT-07:00)
To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
Subject: One last epay for the day, TEC terminal
Since some need to possibly use current loop, I was searching and
thought it useful to bring this to people's attention.? The TEC is also
one of the terminals in the video I posted a few days ago related to
"Jobs" if you care to look.? I've used these and at the time the only
problem I had was dropping them on your foot, they are not light.
the vendor says that Bitsavers has the manual, which may make this a bit
attractive as well, saving looking all over the place for
documentation.? The screen doesn't look great, but might be usable w/o a
huge amount of work.
Another thing that ones here may be able to use is that it has the video
output option installed, so one could drive a modern monitor, or
presentation projector in a display situation with this one.
I think the ones we had were a bit fancier, and had a block of
indicators on one side or the other that you could blink, this one does not.
1972-TEC-440-Serial-Terminal-/
http://www.ebay.com/itm/262674442502
no affiliation, just wish I had room for it, hope someone can use it.
i'll throttle myself for a few days unless I see a random 360/50 or so
for sale so I am not bothering those who don't like these. Apologies in
advance.
thanks
Jim
On messftp/uploads/6085_IOP_Firmware.zip
I have been working on trying to get Smalltalk running on it, so I went through and checked
all of my IOP boards for different revs of firmware. There are only two that I found, the later
one added support for >80mb disks.
The 6085 has a 80186 instead of the 8085 in the 8010, and there is much more code running on it
than what was on the 8010.
I have two boxed copies of Text Editor/200 for the HP 200-Series (aka
9826, 9836, 9816, etc.) and I probably don't need two of them, so I
may as well pass one on:
https://dl.dropboxusercontent.com/u/13043699/pics/HP200_1.jpghttps://dl.dropboxusercontent.com/u/13043699/pics/HP200_2.jpg
It's so new it's still in the shrink wrap, so I can only go by the
text on the back (second pic link) that it includes both 3.5" and
5.25" disks. The HP Museum site has Teledisk images of the 3.5"s
already, so you may as well leave it in its shrink for display (though
I would like to see the documentation scanned, someday...)
http://www.hpmuseum.net/display_item.php?sw=34
Who wants it for cost of shipping? I'm in the 60070 ZIP.
-j
Congratulations! Fun to find some of the wooden generation of computers. Keep us posted on the restoration efforts (if any) :-)
-------- Original message --------From: "Mark J. Blair" <nf6x at nf6x.net>
?the deal to be completed in a little over a week
On Sat, 15 Oct 2016, Al Kossow wrote:
> scanned.. no time to post-process right now
> If someone REALLY needs this, LMK
My read of this is that have all the Sun-1 and DECwriter II and III docs
that matter so I will pass on all this paper to somebody else without
thinking furter about scanning them.
As for the Data Printer Corporation docs, I never expected them to be a
sought after item and I have one candidate so I will send them them there.
I have access to a lot of old Sun and DEC documentation, is there anything
>from those two sources that you are looking for? (Aside from Sun proms
which I do not have.) I have until January 1 to find homes for a lot of
this stuff before it stops being available to me and starts to be
destroyed.
--
Richard Loken VE6BSV, Systems Programmer - VMS : "...underneath those
Athabasca University : tuques we wear, our
Athabasca, Alberta Canada : heads are naked!"
** rlloken at telus.net ** : - Arthur Black
I don't know that Digital ever had a Unibus disk controller for ST412
interface disks, but were there any third party controllers? I'm in
need of disk controllers for PDP-11/40 and think that might be an
option given the availability of reliable MFM disk emulators.
-chuck
I missed those somehow.. thank you. ?Got a lot to learn with this beast!
Sent from my Samsung device
-------- Original message --------
From: COURYHOUSE at aol.com
Date: 2016-10-13 10:30 PM (GMT-08:00)
To: cctalk at classiccmp.org, vintagecomputer at bettercomputing.net
Subject: Re: ASR 33 buzzing
did? you? get the? links? we? sent you? over
on the greenkeys? list? for? sources on 33 manuals and paperwork
we? sent you?? We did not get an acknowledgment.? thanks?
Ed#? www.smecc.org
?
In a message dated 10/13/2016 4:37:20 P.M. US Mountain Standard Time,
vintagecomputer at bettercomputing.net writes:
The
buzzing definitely seems to be coming from the motor.? I put a
plastic
tool to the casing and could feel it vibrating. However, I can turn
it by
hand (clockwise) and see all the gears and striker mechanisms
working.
It did manage to work briefly yesterday.. it did kind of a
'reset'.? But
yeah.. not today.
-----Original
Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf
Of Paul Koning
Sent: Thursday, October 13, 2016 4:28 PM
To: General
Discussion: On-Topic and Off-Topic Posts
<cctalk at classiccmp.org>
Subject: Re: ASR 33 buzzing
>
On Oct 13, 2016, at 7:14 PM, Brad H
<vintagecomputer at bettercomputing.net>
wrote:
>
> Posting
around hoping somebody might be able to point me in the right
>
direction.? I tried greenkeys but no response.
>
>
>
> I have an ASR 33 I got.? When I plug it in on Line mode there is
a
> clicking in the power supply area and nothing else.? If I put
it to
> Off or Local, there is a loud buzzing sound and eventually a 2A
fuse
> on the back left side of the machine blows.? It's like
something's
> stuck but the noise is kind of hard to pin down.?
Wondering if there's
> any Model 33 experienced guys out there.
:)
>
Given the blown fuse I'd suspect a stuck mechanism, so the
motor is stalled
and you're getting overcurrent.? Try turning the
motor by hand to confirm.
? ?
paul
???
>from the modem end a Hayes or anything else that does 300/1200 also
did 110 as I remember as that was under the bell 103 spec. (110 adn 300
baud) I suppose just a matter of your uart being able to talk to
the modem at that speed ( which should not be a problem??!)
Ed# _www.smecc.org_ (http://www.smecc.org)
In a message dated 10/16/2016 6:10:10 A.M. US Mountain Standard Time,
billdegnan at gmail.com writes:
On Oct 16, 2016 5:52 AM, "Evan Koblentz" <cctalk at snarc.net> wrote:
>>
>> I mean please add 110 Baud Evan!
>
>
> I was giving examples, not carved-in-stone specifications.
If the system is simple it'll be easier to support, 110b is not, given the
number of persons coming in from the other end so slowly. No one barely
has a phone line anymore as it is, most (95%) of the external traffic will
be telnet. If the bbs allows those few of us with phone lines to connect
at 300 to 1200b to get to a handshake and resolve to a simple welcome
screen for hardware testing purposes, that would be a good start. Get that
running see what kind of traffic results, and plan phase ii from there.
I imagine it will be best once this system is up and running that people
call in on Sunday afternoon so visitors to the museum hear the inbound
calls in real time like a sys op would running a bbs from his basement.
Bill
> From: Richard Schauer
> My message to him, which I did save, is dated the evening of March 12,
> 1997, and I seem to recall the list started a couple of days later.
OK, so the 'unofficial' early archives which I'm hosting:
http://ana-3.lcs.mit.edu/~jnc/cctalk/
do go back that far, so it doesn't look like we're missing much. The earliest
ones there are from 13 March 1997, so we may be missing a few, but not many;
the first posts are clearly 'hi, here's who am I' kind of things, apparently
in response to an earlier message, which does alas seem to be missing.
I scanned down the list, looking for names I recognized, and found this:
http://ana-3.lcs.mit.edu/~jnc/cctalk/1997-March/0070.html
which seems like it must be someone's very first post to this list!! :-)
I do have the 'missing' archives (i.e. between Feburary 2005 and November
2014) in mail archive format, and once I figure out how to run Hypermail (this
has been on my to-do list since last September, maybe I'll take a run at it
today), I'll add them to the unofficial archives.
Once done, it may take Google a few days to index them, but once that's done,
it should be possible to search for content again.
Noel
I picked up a bit of an odball power macintosh 6100 a while back. It has a
486 cpu at 66 mhz in it as well, so you can run dos on it or something.
Overall looks to be in somewhat working shape, but does not boot. I do not
hear the hard drive spinning, I am guessing it is bad.I can get it to power
on to the little flashing icon with the question mark. It came with a huge
pile of cables for connecting extra monitors, and i should have a spare
keyboard and mouse too.
Anyone want this thing? I am open to offers.
I can't absorb another world. I have too much on the table, and am just not
interested in the PPC mac stuff. I thought it would be cool to have a
machine that would run both mac software and dos, but I already have plenty
of DOS machines here and did not bother.
I have a couple of other tiny performa PPC machines that a monitor can sit
on top of as well, those I know to be fully functional. those are up for
grabs too.
I can get pictures and specs upon request, that would require me to make a
spot on my desk and fire them up.
--Devin
SOL-20s have been all over the map. ?Ive seen similar units diverge by as much as $500 for nothing obvious I can see. ?The average for unknown, complete, decent cosmetic condition seems to be around $900. With extras probably $1300?
Sent from my Samsung device
-------- Original message --------
From: "Mark J. Blair" <nf6x at nf6x.net>
Date: 2016-10-15 11:56 AM (GMT-08:00)
To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
Subject: Reasonable price for a complete SOL-20 system?
I have an opportunity to make a "reasonable offer" on a fairly complete SOL-20 system. It would include a floppy drive cabinet and some software, but no monitor. It's a "working when retired" system, so I assume that the keyboard has died of old age and some capacitors might have dried out; none of that bothers me, but it implies that it's probably not a turnkey system. I have to make the offer or not by tonight, based on when the owner is leaving on a road trip that will pass near me, with or without the system loaded up in his RV.
Now the problem is that I haven't been following SOL-20 prices, so I don't know what a reasonable offer might be. The only prices I'm aware of are the various buy-it-now prices I see on eBay, some or all of which I suspect are from sellers looking for top dollar and then some.
If any of y'all can help me figure out a reasonable price range for a complete-ish but not necessarily running SOL-20 system, I would appreciate that.
--
Mark J. Blair, NF6X <nf6x at nf6x.net>
http://www.nf6x.net/
Hi,
I have a PDP-11/23 system with a DSD-440 dual 8" floppy drive.
On reset, it prints:
28
START?
and waits for the operator to insert a bootable 8" floppy and type DY0.
The problem is I do not have a bootable 8" floppy.
The DSD-440 should be compatible with either RX01 or RX02.
Can anyone on this list help me out with a bootable 8" floppy?
I will gladly pay for the floppy + shippng costs.
Thanks,
Scott
PS: Pictures of the system can be found here:
http://sierracircuitdesign.ddns.net/temp/pdp11
I have an opportunity to make a "reasonable offer" on a fairly complete SOL-20 system. It would include a floppy drive cabinet and some software, but no monitor. It's a "working when retired" system, so I assume that the keyboard has died of old age and some capacitors might have dried out; none of that bothers me, but it implies that it's probably not a turnkey system. I have to make the offer or not by tonight, based on when the owner is leaving on a road trip that will pass near me, with or without the system loaded up in his RV.
Now the problem is that I haven't been following SOL-20 prices, so I don't know what a reasonable offer might be. The only prices I'm aware of are the various buy-it-now prices I see on eBay, some or all of which I suspect are from sellers looking for top dollar and then some.
If any of y'all can help me figure out a reasonable price range for a complete-ish but not necessarily running SOL-20 system, I would appreciate that.
--
Mark J. Blair, NF6X <nf6x at nf6x.net>
http://www.nf6x.net/
Nice Find Bill!
The mention of the kitchen computer makes me
wonder how many of those still exist
or... how many were sold?
Has anyone dome a detailed write up on it?
Ed# _www.smecc.org_ (http://www.smecc.org)
In a message dated 10/14/2016 4:14:32 P.M. US Mountain Standard Time,
writes:
I recently came upon the console for a Honeywell u-COMP DDP-516, which is
the older brother of the Honeywell Kitchen computer (DDP-316). Took a lot
of photos:
http://www.vintagecomputer.net/browse_thread.cfm?id=655
Bill
FYI
www.ebay.com/itm/112167073659
This guy was the second listing he's put up. I suspect he has more.
I tried the two sets he put up the first time, and they work fine on the 6085.
They are hard enough to find at that price, I thought I'd let people know.
He also has the Fujitsu MB8266A nibble-mode 64k used on the video board still listed
at a really good price
www.ebay.com/itm/111235545807
On Thu, 13 Oct 2016, Paul Anderson wrote:
> If they are not scanned, I'll pay to ship them to Al or whoever.
>
> Thanks, Paul
Paul, I went to the bitsavers site and found a fairly good selection of
LA120 docs (which may or may not contain all that I have) but they don't
seem to have much on the LA36. There Sun-1 and DPC manuals that I have
do not seem to be there either.
I looked for contact information on the sitev but I cannot find any,
I am willing to send these for scanning but I do not know how to make
contact, I have not the time, skill, or tools to scan them myself.
--
Richard Loken VE6BSV, Systems Programmer - VMS : "...underneath those
Athabasca University : tuques we wear, our
Athabasca, Alberta Canada : heads are naked!"
** rlloken at telus.net ** : - Arthur Black
On Wed, 12 Oct 2016, jim stephens wrote:
> On 10/12/2016 9:47 PM, Jerry Kemp wrote:
>> any chance that it could be scanned, then shared that way?
I think this manual should be scanned for posterity but cannot do that.
> Something like what is on this page?
> http://www.solivant.com/sun100/
Nothing similar there.
> Bitsavers:
> http://bitsavers.informatik.uni-stuttgart.de/pdf/sun/sun1/
the one above is the previous version to the manual I have. According
to the first page, the single volume Sun-1 System Reference Manual from
July 1982 was replaced by two volumes the User Guide, which I have, and
the Programmer's Reference Manual which I do not have. The older
manual is probably more useful but this one is expanded (according to
revision page) to include 1/2" and 1/4" tape drives and Fujitsu disk
drives. I see that the CDC Lark operation is in here, the Sun-1 that
I dealt with had a CDC Lark cartridge unit and I still have some of the
old Lark cartridges and no possible way to read them.
--
Richard Loken VE6BSV, Systems Programmer - VMS : "...underneath those
Athabasca University : tuques we wear, our
Athabasca, Alberta Canada : heads are naked!"
** rlloken at telus.net ** : - Arthur Black
> From: Rick Bensene
> Some of the machines in the series had a very powerful (for the time)
> floating point unit (known as the IPU) that operated in tandem with the
> main CPU
I wonder if the machines in the auction had this?
Noel
Came across this in the local craigslist today:
http://seattle.craigslist.org/see/sop/5820161303.html
I don't know if this is of interest to the Big Iron IBM guys, but if
there's any interest from folks not in the Seattle Area, I'm happy to
help faciliate.
--Jason
It's not a matter of bothering.. it's a matter of not knowing what I'm looking at yet. ?I was checking what I thought were all the clutches in the back.. they all seemed good.
I guess changing caps would be a smart idea right off given they look original. ?I'll check the diodes too. ?I am just nosing around.. given it wasnt shorting out when it left.. I'm concerned something might have shifted in transit.
Sent from my Samsung device
-------- Original message --------
From: dwight <dkelvey at hotmail.com>
Date: 2016-10-14 7:36 PM (GMT-08:00)
To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
Subject: Re: ASR 33 buzzing
I see you didn't bother to check the clutches. You'd have found that the
clutch that reset the keyboard could be released.
The buzzing may also be related to your fuse blowing the supply
that feeds the receiving coil may have a shorted diode or capacitor.
That would both explain the fuse and the buzz.
Dwight
________________________________
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Brad H <vintagecomputer at bettercomputing.net>
Sent: Friday, October 14, 2016 6:30:57 PM
To: 'General Discussion: On-Topic and Off-Topic Posts'
Subject: RE: ASR 33 buzzing
Got a little further.? The keyboard was definitely jammed.? I pulled the carriage over to the right and noted there's a bar on the left side that a piece of metal attached to the carriage belt hits, I assume triggering something.? Doesn't work.. the bar is stuck.? At any rate, I put the metal piece over it and the carriage returned on its own (spring action).? I then wound the motor some more and got a bell sound.? After that, the keys started to work properly -- I can see the little arms (code bars?) changing as each key is pressed.
Thought maybe if the keyboard was jammed that might short the motor.. but still blows out fuses.
AFAIK the unit was working before it was shipped, sort of.? The seller mentioned powering it up and doing a carriage return successfully before shipping.? I'm inclined to think something happened during shipping.
It's too bad it's out in Australia, I qualify for the top priority of the
list, 'under 21 years of age'
Especially this is too bad: "Anything not sold, swapped or given away by
early December will likely go to recycling."
Joe
I have a collection of DEC items available for sale, swap or giveaway.
They are mostly VAX or MicroVAX items, as well as a few PDP-11 items.
These are in Melbourne, Australia. I appreciate this may not be of much
interest to the rest of the world.
If interested, please take a look here -> http://avitech.com.au/?p=1285
Thanks.
I thought the question about the prevalence of .156" connectors in early
systems was interesting and I assume someone here has the detail on the
rationale.
Jim
-------- Forwarded Message --------
Subject: CBM edge connectors pitch?
Date: Thu, 13 Oct 2016 19:31:47 +0200
From: silverdr at wfmh.org.pl
Reply-To: cbm-hackers at musoftware.de
To: cbm-hackers at musoftware.de
Do we know what is the norm used in the CBM edge connectors? Like the IEEE, USER PORT or CASSETTE?
I found out mentions that it uses a 0.156" pitch. Where the heck does that come from? Nothing "round" in either metric or imperial..
--
SD!
Message was sent through the cbm-hackers mailing list
Hi, although somewhat off topic, unless I'm reprogramming antique computers :)
...
I was wondering if anyone might know where I could find an A/B switchbox for a 10-pin JTAG cable?
(An old-fashioned mechanical switch would work for my purposes, but I don't want to have to try to build one :)
thanks,
Stan
> From: Jason Howe
> I really really want to aquire a PDP-11 ... Given the price of these
> things in the world right now...
If you're willing to live with a QBUS machine, and not a UNIBUS one, it
doesn't necessarily take a mountain of money - if you're patient and wait for
deals.
I've bought 11/23 CPU boards for as little as $40 recently, and memory and
serial interface cards for console are on the same order of money. And I got
a BA11-S box, complete with power supply and backplane, for a little over
$100, IIRC.
The real hangup is mass storage; the older drives, at least, are all real
money now. I don't know about the later ones (from the uVAX era), those seem
to be cheaper, but I don't know anything about them. If Dave B and I can
get the QSIC project to the production stage, that would probably alleviate
that side.
Noel
Hey folks,
Recent activity on the list, especially the "Ka... ching!" thread, has
had me reevaluating a lot of what I get out of this hobby. I think there
are two things going on that make it less fun for me now: The money,
and the age of the stuff. I'll try to explain.
I've never been a real "collector", I suppose. I don't feel a burning
need to fill every hole in a product line, or to put things on display.
I've also never been in this for the money, far from it. No, the only
reason I've ever collected classic computers is because I've loved
playing with them. That's really all there is to it. I enjoy the sights,
sounds, and smells of firing up vintage computers and seeing them work.
On the money front, as I said I've never been in this for the money.
There was a time when most of this stuff could just be had for free, and
that was fun! Going on rescue trips was a blast. I'll never regret
driving down to LA from the Bay Area to rescue a PDP-11/34, or the time
that a bunch of us got togethr and picked up an 11/45 and an Imlac PDS-1
>from Bill Gosper's house. What a time that was -- I didn't even keep any
of it, I was just there for the rescue and the camaraderie.
But nowadays, there's so much less of that. 99% of what trades hands
seems to go back and forth on eBay for real big bucks. And that's
probably just the sign of a maturing hobby, but it's not really what I
enjoy.
And secondly, lately there's been a lot less of "firing up vintage
computers and seeing them work", and a whole lot more "carefully
replacing capacitors and praying that the vintage computer will still
fire up". We've reached the point where the hardware I love is dying.
It's been dying for years, I suppose, but now it's in hospice care. And,
frankly, that part of it is so much less fun for me than actually using
the systems. Am I just lazy? Maybe. And don't get me wrong, I've learned
SO MUCH about electronics from taking care of these systems, so I don't
consider it a loss at all. It's just not what I want to spend my time
on.
I've been ruminating on all of this pretty hard for the last couple of
months, and I've concluded that my enjoyment just isn't there any more.
Now that I'm surrounded by a bunch of stuff that I'm not getting
much out of, I feel like I'm being weighed down by the hobby. I think
it's time for me to move on and concentrate on other things.
I'm not sure yet what that means for my current collection. It's already
much smaller than it once was, as I've found homes for a lot of things
over the years. I've moved a lot, and every time I've moved I've found
homes for things I didn't want to take with me. It's probably time to do
that again, only without the moving part.
I think probably I'll have one last big "sale" of stuff, which I'll post
about here. At this point most of what I have is vintage home computers,
terminals, and QBUS PDP-11 stuff, so not everyone will be interested in
it -- but maybe some people will.
-Seth
--
Seth Morabito
web at loomcom.com
the perennial '937' problem
just installed 6085 XDE 5.0 from floppies but there is no option in the
installer to load and setup to boot settimedove.boot from the copilot volume
someone must have figured this out
on the other hand, since none of the compilers or actual useful stuff is installed,
since you're SUPPOSED to fetch this off the XNS network, maybe not.
I should post this on comp.sys.xerox :-)
> From: Jim Stephens
> The two bay 11/45 went for twice the bid, since it was listed as 2 pcs
> @ 1500 each
Yeah, I couldn't quite work that out - did it mean there were two mostly
identical ones, and they only had pictures of one, or did it mean 'two racks'?
Noel
Hi Guys
Having established a good stock of panels. I now have got
a little time to move my PDP-8/i project along a bit.
The front I already had . A kind list member let me have a lights board.
I built and and tested it
It is compatible with the original /i in form, fit and function.
This means you could attach wires and paddle (Filip Chip Type ) boards
to it and plug it into a real /i and it should run.
As I have said before the /i is a wire wrap back plane and loads of flip
chip boards. It would not be possible to duplicate it.
So modern technology front and center please! The Raspberry Pi is
cheap, available and I have one.
I also found a 32 port Pi I/O expansion board that you can have up four
of on one Pi.
SimH runs on a Pi and it does do 8/i emulation. It looks like SimH is
written in C. Not a language
I have used but I'm sure the hundreds of different versions are all very
good !
Hopefully you can declare and call SimH functions under Python.
The four 32 port Pi I/O expansion boards I ordered should be here
to-day or Monday.
They are accessed using the I2C bus from the Raspberry Pi
The switch panel is a bit more of a problem. I'm sure copies of the DEC
butterfly rocker switch will become available.
in the meantime commonly available rocker switches will suffice for
development purposes.
Although Oscar multiplexed his lamps I may be able to find out how the
system signaled it needed to update the lamp display.
Rod Panelman Smallwood
--
PDP-8/e PDP-8/f PDP-8/m PDP-8/i
Front Panels ex Stock - Order Now
ok ! there are a set on ebay also but not cheap if you can live
with the electronic stuff and occasionally print a page you will do fine with
the links...
I like to have hard copies of manuals here in the museum's library and
while I like searching things electronically I really appreciate
something that is bound paper to sit and an arm chair and read....
now If I am gonna take the paper to the greasy machine to work, I make a
copy of page needed or print from the online one! Ed#
_www.smecc.org_ (http://www.smecc.org)
In a message dated 10/13/2016 10:58:28 P.M. US Mountain Standard Tim,
vintagecomputer at bettercomputing.net writes:
I missed those somehow.. thank you. Got a lot to learn with this beast!
Sent from my Samsung device
-------- Original message --------
From: COURYHOUSE at aol.com
Date: 2016-10-13 10:30 PM (GMT-08:00)
To: cctalk at classiccmp.org, vintagecomputer at bettercomputing.net
Subject: Re: ASR 33 buzzing
did you get the links we sent you over on the greenkeys list for
sources on 33 manuals and paperwork we sent you? We did not get an
acknowledgment. thanks Ed# _www.smecc.org_ (http://www.smecc.org/)
In a message dated 10/13/2016 4:37:20 P.M. US Mountain Standard Time,
vintagecomputer at bettercomputing.net writes:
The buzzing definitely seems to be coming from the motor. I put a plastic
tool to the casing and could feel it vibrating. However, I can turn it by
hand (clockwise) and see all the gears and striker mechanisms working.
It did manage to work briefly yesterday.. it did kind of a 'reset'. But
yeah.. not today.
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Paul
Koning
Sent: Thursday, October 13, 2016 4:28 PM
To: General Discussion: On-Topic and Off-Topic Posts
<cctalk at classiccmp.org>
Subject: Re: ASR 33 buzzing
> On Oct 13, 2016, at 7:14 PM, Brad H
<vintagecomputer at bettercomputing.net>
wrote:
>
> Posting around hoping somebody might be able to point me in the right
> direction. I tried greenkeys but no response.
>
>
>
> I have an ASR 33 I got. When I plug it in on Line mode there is a
> clicking in the power supply area and nothing else. If I put it to
> Off or Local, there is a loud buzzing sound and eventually a 2A fuse
> on the back left side of the machine blows. It's like something's
> stuck but the noise is kind of hard to pin down. Wondering if there's
> any Model 33 experienced guys out there. :)
>
Given the blown fuse I'd suspect a stuck mechanism, so the motor is stalled
and you're getting overcurrent. Try turning the motor by hand to confirm.
paul
Yeah I'm sure we must have bad cap(s) here. ?I think pretty much everything is original on this thing. ?I've no idea how old it is.
I'll have to read through the manuals and figure out where the cap is. ?I'm assuming it must be round.. although directly under the fuse is a little black box connected to it. ?
I note when I plug it in on Line sometimes there's a single metallic clack from the PSU area and sometimes it's multiple..lioe someone's operating a telegraph.
I was rotating the motor and seeing how things work (hard to believe it doesn't just fly apart given how intricate it is). ?I was able to push keys.. however now I have the top row locked down and the keyboard cover won't fit back on.. heh. ?Hoping I'm not breaking things as I go.
Sent from my Samsung device
-------- Original message --------
From: "drlegendre ." <drlegendre at gmail.com>
Date: 2016-10-13 10:17 PM (GMT-08:00)
To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
Subject: Re: ASR 33 buzzing
Tony's suggestion is the best at this point - look for issues with the
motor start and/or run caps. A shorted (or open..) cap can certainly cause
this issue. Shorted and it draws excess current in the cap, open and it may
prevent motor starting / running which likewise draws excess (stall)
current, but in the motor windings.
Also, it shouldn't be too hard to isolate the motor assy. itself from the
rest of the circuit - lift the correct lead(s) from the AC power
distribution system. It may be much easier if you can deal with the motor /
cap assy. as a single entity, rather than within the rest of the complexity.
This is just generic advice from a guy who's never fixed a 33. But assuming
yours has the standard AC synchronous motor, it should all apply. Motors
only draw excess current for a very few reasons - overload / stall, shorted
windings, bad start / run caps and possibly associated start / run relays.
On Thu, Oct 13, 2016 at 11:34 PM, tony duell <ard at p850ug1.demon.co.uk>
wrote:
>
> > The buzzing definitely seems to be coming from the motor.? I put a
> plastic
> > tool to the casing and could feel it vibrating. However, I can turn it by
> > hand (clockwise) and see all the gears and striker mechanisms working.
>
> Should the motor be running in the 'Off' positon of the switch, though?
>
> If the motor is buzzing and taking a high current (which blows the fuse),
> what about the motor run capacitor (the one on the mechanism chassis
> itself, wired to the motor)? Maybe it has failed.
>
> -tony
>
did you get the links we sent you over on the greenkeys list for
sources on 33 manuals and paperwork we sent you? We did not get an
acknowledgment. thanks Ed# _www.smecc.org_ (http://www.smecc.org)
In a message dated 10/13/2016 4:37:20 P.M. US Mountain Standard Time,
vintagecomputer at bettercomputing.net writes:
The buzzing definitely seems to be coming from the motor. I put a plastic
tool to the casing and could feel it vibrating. However, I can turn it by
hand (clockwise) and see all the gears and striker mechanisms working.
It did manage to work briefly yesterday.. it did kind of a 'reset'. But
yeah.. not today.
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Paul
Koning
Sent: Thursday, October 13, 2016 4:28 PM
To: General Discussion: On-Topic and Off-Topic Posts
<cctalk at classiccmp.org>
Subject: Re: ASR 33 buzzing
> On Oct 13, 2016, at 7:14 PM, Brad H
<vintagecomputer at bettercomputing.net>
wrote:
>
> Posting around hoping somebody might be able to point me in the right
> direction. I tried greenkeys but no response.
>
>
>
> I have an ASR 33 I got. When I plug it in on Line mode there is a
> clicking in the power supply area and nothing else. If I put it to
> Off or Local, there is a loud buzzing sound and eventually a 2A fuse
> on the back left side of the machine blows. It's like something's
> stuck but the noise is kind of hard to pin down. Wondering if there's
> any Model 33 experienced guys out there. :)
>
Given the blown fuse I'd suspect a stuck mechanism, so the motor is stalled
and you're getting overcurrent. Try turning the motor by hand to confirm.
paul
Posting around hoping somebody might be able to point me in the right
direction. I tried greenkeys but no response.
I have an ASR 33 I got. When I plug it in on Line mode there is a clicking
in the power supply area and nothing else. If I put it to Off or Local,
there is a loud buzzing sound and eventually a 2A fuse on the back left side
of the machine blows. It's like something's stuck but the noise is kind of
hard to pin down. Wondering if there's any Model 33 experienced guys out
there. :)
Good find on archive.org even in .gz format still. I'm fairly positive the incident was discussed on the mailing list and vcfed. Issues happen and it was a perfect storm.
I like to chock it up to new technology failing us. ;-)
Kudos to Jay for keeping this alive as well as he does. Lots of great history and stories are definitely discovered and archived here.
I love this Mysteries at the Museum show but sometimes some of the pros
they use are a bit off!
FACT checking props on Mysteries at the Museum! Why is link using a 200 A
or B HP audio Oscillator! there he is at a work bench with this HP thing
and a set of bellows allegedly 1929 era.
I laughed my ass off..... Ed#
>from history...
The Origin of the Link Trainer. Today in aviation history, on April 14,
1929, Edwin A. Linkfiled his patent application for his first Link
Trainer,
and what of HP first product? the 200a and the special one for Disney?
1938
* Work begins
* HP invents first product
* Oscillators for Walt Disney
======================================================
ok.... there we go! just can't be near 1929.. now I am sure some time
Link Had or his people used early HP stuff...
but not in the time frame as presented in 29 or neat 29.
Ed# _www.smecc.org_ (http://www.smecc.org/)
> From: Jon Elson
> we got an 11/45 used and ran RSX-11M with about 4 users on it, it
> worked VERY well
About when I first got to MIT ('74), they were running the main introductory
programming course for CS students (6.031, for those to whom that means
something) on an 11/45; it had (IIRC) about 30+ Decwriters hooked up to it.
It ran a home-rolled OS called 'Delphi' (written in Macro-11, I suspect); the
course covered assembler, Algol (compiled, I think - but it may have been
interpreted, I'd have to check) and LISP (interpreted). ISTR that the
response time on the machine was usually pretty good.
By a very odd chance, some years later I got that very machine in a trade,
and it became the main time-sharing machine (running Unix V6) for our group
(CSR) at LCS (545 Tech Sq). We beefed it up with an Able ENABLE and I think
1MB of memory, and IIRC the optional Able cache for the ENABLE, and it was
_quite_ zippy - I think 'mips' returned about 3.0, about as fast as the DSSR
11/70 on the other side of the 5th floor at TS. Of course, it didn't have the
mass storage I/O bandwidth of the /70, but we were very happy with it.
> of course, when we moved up to a VAX, that was even better!
Heh. Give me an 11/45 with an Able ENABLE any day! :-)
Noel