On 8/28/23 16:56, Dave Babcock via cctalk wrote:
> Chuck,
>
> Yes, I mean Monitor II-D.
>
> No, CHM does not have a working 1311 drive. The need for Monitor II-D
> is for the IBM 1620 Model 2 simulators being written. Monitor I does not
> run correctly on a 1620 Model 2 whe
Chuck,
Yes, I mean Monitor II-D.
No, CHM does not have a working 1311 drive. The need for Monitor II-D
is for the IBM 1620 Model 2 simulators being written. Monitor I does not
run correctly on a 1620 Model 2 when index registers are enabled and
used by a program.
Dave
On 8/28/2023 3:48
On 8/28/23 13:54, Dave Babcock via cctalk wrote:
> To all,
> What they need, and CHM would be very interested in adding to its IBM
> 1620 collection, is original software specifically for the IBM 1620
> Model 2. Of particular interest are the IBM 1620 Monitor II and IBM
> 1620-2 d
> Some 20 years ago, I led the Computer History Museum's restoration of an
> IBM 1620 Model 1 computer.
We all owe you thanks for this.
mcl
To all,
Some 20 years ago, I led the Computer History Museum's restoration of an
IBM 1620 Model 1 computer. Our team was successful in both bringing the
machine back to life and collecting a massive amount of manuals, books,
and software for the machine. Most notable the John Man
On 8/27/21 11:23 AM, Lee Courtney via cctalk wrote:
> Video interview I made with John (Maniotes) in preparation for donation of
> the 1620 program library to CHM - https://youtu.be/N12pQBiRd7A
I remember that name--he was at Purdue Calumet Campus. I probably even
met and talked to him 50+ years
s it now. Maybe it's
> > > online.
> >
> > https://www.computerhistory.org/collections/catalog/102710141
> >
> > The 1620 restoration crew read them it
> > they are in
> > http://bitsavers.org/bits/1620/1620.zip
>
> Should be http://bitsavers.org/bits/IBM/1620/1620.zip
>
> >
>
>
--
Lee Courtney
+1-650-704-3934 cell
Computer History Museum in Mountain View has it now. Maybe it's
> > online.
>
> https://www.computerhistory.org/collections/catalog/102710141
>
> The 1620 restoration crew read them it
> they are in
> http://bitsavers.org/bits/1620/1620.zip
Should be http://bitsavers.org/bits/IBM/1620/1620.zip
>
On 8/26/21 7:43 PM, Van Snyder via cctalk wrote:
> There was a professor at Purdue who had two 20-drawer card cabinets
> full of 1620 software. I think his name was Maniotis. I think the
> Computer History Museum in Mountain View has it now. Maybe it's online.
https://www.computerhistory.org/co
On 8/26/21 7:16 PM, jim stephens via cctalk wrote:
/ printer / cpu setup wasn't too hard to run.
>
> Run assembler if you want to study for a while.
Back in the day, you knew that you'd arrived when you could mentally
assemble a one-liner console program and type it in without resorting to
pencil
2021 at 9:46 PM Chuck Guzis via cctalk <
> cctalk@classiccmp.org> wrote:
> > On 8/26/21 5:14 PM, Ray Jewhurst via cctalk wrote:
> > > Hello all,Long time lurker, extremely rare poster, I was reading
> > > the Wikipediaarticle on the IBM 1620 and became quite
>
On 8/26/2021 5:14 PM, Ray Jewhurst via cctalk wrote:
Hello all,
Long time lurker, extremely rare poster, I was reading the Wikipedia
article on the IBM 1620 and became quite intrigued. I know that there is a
simulator for it on SimH but I have never ran or simulated any card-driven
machines
On Thu, Aug 26, 2021 at 9:46 PM Chuck Guzis via cctalk <
cctalk@classiccmp.org> wrote:
> On 8/26/21 5:14 PM, Ray Jewhurst via cctalk wrote:
> > Hello all,
> > Long time lurker, extremely rare poster, I was reading the Wikipedia
> > article on the IBM 1620 and became qu
On 8/26/21 5:14 PM, Ray Jewhurst via cctalk wrote:
> Hello all,
> Long time lurker, extremely rare poster, I was reading the Wikipedia
> article on the IBM 1620 and became quite intrigued. I know that there is a
> simulator for it on SimH but I have never ran or simulated any
https://github.com/IBM-1620/Junior
On Thu, Aug 26, 2021 at 5:15 PM Ray Jewhurst via cctalk <
cctalk@classiccmp.org> wrote:
> Hello all,
> Long time lurker, extremely rare poster, I was reading the Wikipedia
> article on the IBM 1620 and became quite intrigued. I know that there i
Hello all,
Long time lurker, extremely rare poster, I was reading the Wikipedia
article on the IBM 1620 and became quite intrigued. I know that there is a
simulator for it on SimH but I have never ran or simulated any card-driven
machines before. I have all the documentation and the ibm1620.zip
> -Original Message-
> From: cctalk On Behalf Of Van Snyder via
> cctalk
> Sent: 22 June 2021 00:00
> To: cctalk@classiccmp.org
> Subject: Re: IBM 1620; was: Early Programming Books
>
> On Mon, 2021-06-21 at 17:26 -0400, William Donzelli via cctalk wrote:
> &
On Mon, 2021-06-21 at 18:55 -0500, Gavin Scott via cctalk wrote:
> Oh yeah, that was like 12 years ago? I believe they had gotten the
> 1620 CADET (“Can't Add, Doesn't Even Try”) running
One of my colleagues, about fifty years ago, wanted to use the 1620 for
telemetry processing. So he replaced th
On Mon, Jun 21, 2021 at 1:43 PM Chuck Guzis via cctalk
wrote:
> For some (jprobably hallucinatory) reason, I thought there was a project
> at CHM to replace the 1620 core stack with semiconductor memory. Guess
> that never happened.
Oh yeah, that was like 12 years ago? I believe they had gotten
On 6/21/2021 4:00 PM, Van Snyder via cctalk wrote:
I was once told that the most valuable guy in a Honeywell 6080 Multics
shop was the plumber.
No water cooling.
On Mon, 2021-06-21 at 17:26 -0400, William Donzelli via cctalk wrote:
> > Of course, nowadays, the old R22 systems are being refilled with
> > purified propane, called R290. Cheap, with better thermal properties
> > than R22, but probably not legal when LCM picked up the 6500.
>
> When cleaning o
> Date: Mon, 21 Jun 2021 16:02:20 -0400
> From: Paul Koning via cctalk
>> On Jun 21, 2021, at 3:52 PM, Chuck Guzis wrote:
>> On 6/21/21 11:53 AM, Paul Koning wrote:
>>> Perhaps you were thinking about the CDC 6500 at the late lamented LCM?
>>> That got some replacement stacks, which was an int
> When cleaning out a 3rd party CDC dealer quite a few years back, he
> remarked that the CDC machines going way back all the way to the 800s
> were fantastically unpicky about how they were cooled.
So I just reread what I wrote, and see it is crap. What I meant is
that CDC machines going back all
> Of course, nowadays, the old R22 systems are being refilled with
> purified propane, called R290. Cheap, with better thermal properties
> than R22, but probably not legal when LCM picked up the 6500.
When cleaning out a 3rd party CDC dealer quite a few years back, he
remarked that the CDC machi
On 6/21/21 1:02 PM, Paul Koning wrote:
> Some vague memory says Purdue. LCM actually got it running, which was an
> interesting problem. It required recreating the inter-chassis cables (since
> the original ones were cut as part of dismantling the machine) and restoring
> the cooling system.
> On Jun 21, 2021, at 3:52 PM, Chuck Guzis wrote:
>
> On 6/21/21 11:53 AM, Paul Koning wrote:
>
>> Perhaps you were thinking about the CDC 6500 at the late lamented LCM? That
>> got some replacement stacks, which was an interesting puzzle because the
>> read data connection out of the memo
On 6/21/21 11:53 AM, Paul Koning wrote:
> Perhaps you were thinking about the CDC 6500 at the late lamented LCM? That
> got some replacement stacks, which was an interesting puzzle because the read
> data connection out of the memory modules is a differential analog signal
> carrying the sense
> On Jun 21, 2021, at 2:43 PM, Chuck Guzis via cctalk
> wrote:
>
> On 6/21/21 10:55 AM, Paul Koning via cctalk wrote:
>>
> memory. Nobody explained why that was a real problem.
>>
>> Core memory is fairly sensitive to temperature. In the case of the 1620,
>> there is a heating system that
> -Original Message-
> From: cctalk On Behalf Of Chuck Guzis via
> cctalk
> Sent: 21 June 2021 19:43
> To: Paul Koning via cctalk
> Subject: Re: IBM 1620; was: Early Programming Books
>
> On 6/21/21 10:55 AM, Paul Koning via cctalk wrote:
> >
> memory
On 6/21/21 10:55 AM, Paul Koning via cctalk wrote:
>
memory. Nobody explained why that was a real problem.
>
> Core memory is fairly sensitive to temperature. In the case of the 1620,
> there is a heating system that brings the core memory box up to its operating
> temperature, which is why it
Jon,
The Computer History Museum (Mountain View, California) has the most
extensive collection of IBM 1620 items - hardware, manuals, books,
software, etc. - in the world. Most of the items were collected a
number of years ago when a team of volunteers restored the museum's IBM
1620 Mo
On 05/13/2019 10:57 PM, Jon Elson via cctalk wrote:
I just discovered a binder with 2 IBM 1620 manuals. A
quick check shows bitsavers has these and newer editions
of them.
So, does anybody want :
IBM 1620 Central Processing Unit, Model 2 (Form A26-5781-1)
and
IBM 1620 Monitor II System
I just discovered a binder with 2 IBM 1620 manuals. A quick
check shows bitsavers has these and newer editions of them.
So, does anybody want :
IBM 1620 Central Processing Unit, Model 2 (Form A26-5781-1)
and
IBM 1620 Monitor II System Reference Manual (Form C26-5774-0)
Jon
g (Finnish)
> http://ennenmikrotietokoneita.blogspot.fi/
>
>
>
> > From: dave.g4...@gmail.com
> > To: cctalk@classiccmp.org
> > Subject: RE: Searching an IBM Model B typewriter for IBM 1620
> > Date: Wed, 15 Jun 2016 12:33:53 +0100
> >
> > Some one had one in the Netherl
ng an IBM Model B typewriter for IBM 1620
> Date: Wed, 15 Jun 2016 12:33:53 +0100
>
> Some one had one in the Netherlands about 4 years ago...
>
> >Erik W. vier...@hotmail.com via classiccmp.org
> >26/06/2012
> >to cctalk
> >
> >
> >Hi Folks,
> >
trade. This stuff is
> impossible to find. As used on the IBM 1620,DEC PDP-1 and many other
computers of the era. Useful if you'remaintaining one of those or want to
build a
> replica/simulator.
> Respond to me directly as I'm n
I got just another jewel to my collection, IBM 1620 Model I (G level). Machine
has all internals intact, but table top and the typewriter are missing
(probably doorway was too narrow back then, parts removed and forgotten
somewhere on the journey... )
That table top can be made again, but I
On making PC boards, we had a shop mix the top and bottom
layers. They tried to tell us it didn't matter but our boards
had an edge connector, with different fingers on each side.
It was expensive high temperature PC board as well.
Dwight
m1620/
>>
>> From what I've been reading, there may be only one operational 1620
>> right now, but the CHM is also trying to restore one.
>
> The IBM 1620 at the CHM is a running computer. There were two teams that
> worked on the 1620 at the CHM. The first Team got it
On 08/30/2015 05:09 PM, Chuck Guzis wrote:
On 08/30/2015 02:00 PM, Jon Elson wrote:
I hacked a fiber optic light pen onto a Calcomp plotter
and made some
artwork directly onto film, and then in 1996 I built a
laser
photoplotter that cranks out 1000x1000 DPI images on
red-sensitive
film at 0.
On 08/30/2015 02:00 PM, Jon Elson wrote:
I hacked a fiber optic light pen onto a Calcomp plotter and made some
artwork directly onto film, and then in 1996 I built a laser
photoplotter that cranks out 1000x1000 DPI images on red-sensitive
film at 0.6 inches/minute. It can do up to 20 x 24" fil
On 08/31/2015 02:59 AM, Dave G4UGM wrote:
I seem to remember that 1620 core runs warm, and you have to wait for it to
get warm before the machine comes on-line ... see last paragraph
http://www.angelfire.com/oh3/ebjoew/IBM_1620_Core_Memory.html
Yes, many IBM machines used heaters to stabilize
> [...] then in 1996 I built a laser photoplotter that cranks out
> 1000x1000 DPI images on red-sensitive film at 0.6 inches/minute.
I'd be very interested in anything you care to share about its design
and building
/~\ The ASCII Mouse
\ / Ribbon Campaign
X Again
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of ben
> Sent: 31 August 2015 01:43
> To: cctalk@classiccmp.org
> Subject: Re: IBM 1620
>
> On 8/30/2015 6:32 PM, Tothwolf wrote:
>
> > On page 5, they describe 0.0031&quo
On 08/30/2015 05:16 PM, Tothwolf wrote:
According to IBM's paper, extra cores were threaded initially and
used to replace any cores that tested bad during assembly. Any extras
were crushed after assembly to remove them.
I suspect there were also extra rows after shipment as well. I seem to
r
failures of the enamel wires in CHM's IBM 1620.
Copper erosion from tin is something I'd never really given a lot of
thought to, but it will certainly be something I keep in mind from now
on.
But is that the case? Would not heat induced failure be the real case
here as I suspect tha
On 8/30/2015 6:32 PM, Tothwolf wrote:
On page 5, they describe 0.0031" 40 AWG magnet wire being reduced to
0.002" after soldering with 60/40 tin-lead solder. That 0.0011"
reduction is basically 1/3 of the diameter of the wire. This explains
the failures of the enamel wires in
On Sun, 30 Aug 2015, Paul Koning wrote:
On Aug 30, 2015, at 1:55 PM, Chuck Guzis wrote:
On 08/30/2015 09:47 AM, Tothwolf wrote:
If repair of the core memory in CHM's IBM 1620 is ever attempted, I
think either low-tin solder alloy with 1-2% added copper or possibly a
more modern indium
On Sun, 30 Aug 2015, Chuck Guzis wrote:
On 08/30/2015 09:47 AM, Tothwolf wrote:
If repair of the core memory in CHM's IBM 1620 is ever attempted, I
think either low-tin solder alloy with 1-2% added copper or possibly
a more modern indium-lead solder alloy would probably be the best
choic
On Sun, 30 Aug 2015, Chuck Guzis wrote:
On 08/30/2015 11:15 AM, Paul Koning wrote:
So there'd be what, 120,000 cores to thread? That might be a bit
daunting from a human-hour standpoint. I'll wager that 120K cores
wasn't even a day's output for outfits like Fabritek.
Those cores weren't th
On 08/30/2015 03:04 PM, Chuck Guzis wrote:
PCB design was also a specialty, what with mylar film,
tape, white-out and India ink and, of course, an X-acto
knife. The best people at this seemed to be from the Far
East. Done probably at 4X scale, then reduced for
production.
Yup, back in th
On 08/30/2015 12:15 PM, Paul Koning wrote:
Perhaps CDC's ECS? 125k (funny number that) words per memory bank.
Possibly. We used a lot of it in SSD. 4MW installations were not
uncommon, shared among 2-4 mainframes. As I recall, core errors were
not treated the same way as CM--part of dead
> On Aug 30, 2015, at 2:34 PM, Chuck Guzis wrote:
>
> ...
> I have heard of machine-fabricated core as well, but I thought that it only
> applied to larger, slower bulk core store. One can certainly understand why
> plated-wire or thin-film technologies were attractive.
Perhaps CDC's ECS? 1
On 08/30/2015 11:15 AM, Paul Koning wrote:
So there'd be what, 120,000 cores to thread? That might be a bit
daunting from a human-hour standpoint. I'll wager that 120K cores
wasn't even a day's output for outfits like Fabritek.
Those cores weren't threaded one by one. You'd start by setting
> On Aug 30, 2015, at 1:55 PM, Chuck Guzis wrote:
>
> On 08/30/2015 09:47 AM, Tothwolf wrote:
>
>> If repair of the core memory in CHM's IBM 1620 is ever attempted, I
>> think either low-tin solder alloy with 1-2% added copper or possibly
>> a more mo
I wrote:
> Don't bother. There's nothing interesting in Area 51 any more; due to
> all the publicity Area 51 has gotten, they've long since moved all the
> good stuff to Area 52, which still has a low profile.
On Sat, Aug 29, 2015 at 12:32 PM, Toby Thain wrote:
> I know you're just being witty, b
On 08/30/2015 09:47 AM, Tothwolf wrote:
If repair of the core memory in CHM's IBM 1620 is ever attempted, I
think either low-tin solder alloy with 1-2% added copper or possibly
a more modern indium-lead solder alloy would probably be the best
choice for the enamel wire to terminal connec
> On Aug 30, 2015, at 9:28 AM, Dave G4UGM wrote:
>
>> ...
>> Interesting. I remember learning about the processes DEC used. No fancy
>> machines, just a flat plate jig with slots to hold the cores in their
> correct
>> position, and nimble-fingered Oriental ladies to thread the wire through
>
, they describe switching to
20/80 tin-lead so the solder would dissolve less copper from the enamel
wire.
If repair of the core memory in CHM's IBM 1620 is ever attempted, I think
either low-tin solder alloy with 1-2% added copper or possibly a more
modern indium-lead solder alloy
> On Aug 30, 2015, at 4:49 AM, Dave G4UGM wrote:
>
> ...
>> IBM had special machines to
>> position and thread them.
>> http://ibm-1401.info/IBMCoreArraysIEEEMagnetics1969.pdf
Interesting. I remember learning about the processes DEC used. No fancy
machines, just a flat plate jig with slots t
-Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Tothwolf
> Sent: Sunday, August 30, 2015 1:57 AM
> To: General Discussion: On-Topic and Off-Topic Posts
>
> Subject: Re: IBM 1620
>
> On Sat, 29 Aug 2015, Paul Koning wrote:
>
On Sat, 29 Aug 2015, Paul Koning wrote:
On Aug 29, 2015, at 12:36 AM, Lyle Bickley wrote:
I was not on the Team that did the memory analysis and the ultimate
"modern" replacement memory. However, when I joined the Team, I asked
similar questions and was told that the core memory was literally
> On Aug 29, 2015, at 12:36 AM, Lyle Bickley wrote:
>
>> ...
>
> I was not on the Team that did the memory analysis and the ultimate
> "modern" replacement memory. However, when I joined the Team, I asked
> similar questions and was told that the core memory was literally
> "falling apart" and
On 2015-08-28 9:49 PM, Eric Smith wrote:
On Fri, Aug 28, 2015 at 4:57 PM, ben wrote:
Just the US goverment in general. Try area 51 next.
Don't bother. There's nothing interesting in Area 51 any more; due to
all the publicity Area 51 has gotten, they've long since moved all the
good stuff to A
e.
Any chance someone on the team took some photos of the core memory? I
didn't see any on CHM's IBM 1620 webpage.
http://www.computerhistory.org/projects/ibm_1620/ibm1620/
For those interested, here is a paper Google turned up which explains the
problem:
Lead Alloys for High Te
Here in Australia, the Australian Computer Museum Society has an IBM 1401 -
just the big CPU unit.
We know of an IBM 1620 CPU unit in Computer Sciences at the University of NSW.
I worked on a 1620 in the 1960s - and thought that it was 'magic'.
Sadly, we don't have enough
On Fri, 28 Aug 2015 20:31:16 -0500 (CDT)
Tothwolf wrote:
> On Fri, 28 Aug 2015, Chuck Guzis wrote:
> > On 08/28/2015 07:42 AM, Tothwolf wrote:
> >
> >> With all the different solder alloys I work with regularly, I have
> >> to ask...what type of solder caused that sort of damage? Was it
> >> the
On Fri, 28 Aug 2015, ben wrote:
On 8/28/2015 3:17 PM, Jay Jaeger wrote:
I expect that Ben's posting was a joke directed at the IRS.
Just the US goverment in general. Try area 51 next.
The 1980's was the last use I suspect of the 1965's machines.
The military used 1950's machines into t
On Fri, Aug 28, 2015 at 4:57 PM, ben wrote:
> Just the US goverment in general. Try area 51 next.
Don't bother. There's nothing interesting in Area 51 any more; due to
all the publicity Area 51 has gotten, they've long since moved all the
good stuff to Area 52, which still has a low profile.
On Fri, 28 Aug 2015, Chuck Guzis wrote:
On 08/28/2015 07:42 AM, Tothwolf wrote:
With all the different solder alloys I work with regularly, I have to
ask...what type of solder caused that sort of damage? Was it the alloy
itself, or did IBM use a flux which was too active and then failed to
cl
On Fri, 28 Aug 2015, ben wrote:
Just the US goverment in general. Try area 51 next.
There are lots of 1620s there. Many have seriously upgraded RAM and
storage, to run Linux, Windoze 12, and Apple System 11. They have
interplanetary WiFi.
On 8/28/2015 3:17 PM, Jay Jaeger wrote:
I expect that Ben's posting was a joke directed at the IRS.
Just the US goverment in general. Try area 51 next.
The 1980's was the last use I suspect of the 1965's machines.
So if you want a vintage computer, the last finds are about 15
years later from
On 8/28/2015 2:00 PM, Kevin Tikker wrote:
> Which government agency?
>
>
> Sent from my iPhone
>
>> On Aug 28, 2015, at 5:15 AM, ben wrote:
>>
>>> On 8/28/2015 3:14 AM, P Gebhardt wrote:
>> We all KNOW the government people still have one running
>> for your tax . After all the bribes and s
On Fri, 28 Aug 2015, Kevin Tikker wrote:
I attended Vista at both locations the main building and the basement of
the former Ross store. The new building was a mess, half finished,
poorly designed and with the video studio poorly built.
It is now a mess, half finished (unwired handicap door bu
Which government agency?
Sent from my iPhone
> On Aug 28, 2015, at 5:15 AM, ben wrote:
>
>> On 8/28/2015 3:14 AM, P Gebhardt wrote:
> We all KNOW the government people still have one running
> for your tax . After all the bribes and shady dealings
> it gets turned on twice a year. Too old
I attended Vista at both locations the main building and the basement of the
former Ross store. The new building was a mess, half finished, poorly designed
and with the video studio poorly built. Thanks for the info on the 1620. Petals
is such a vast organization it's entirely possible some 1620
On Thu, 27 Aug 2015, Kevin Tikker wrote:
I went to both Laney and Berkeley City College so you may have a clue.
Thank you
If you actually want to follow-up on such tenuous leads, . . .
Wil Price would know what happened to the 1620 and 1401. So would Ben
Micallef and Jack Olson, but they're d
On 08/28/2015 05:59 AM, Paul Koning wrote:
Especially if you didn't have the "direct seek" option. I had a
one-card program that would do for (i=0; i<100; i++)
seek_cylinder(i). That doesn't step track to track as you would
expect; instead, it goes from track n to 0 to n+1, resulting in
progre
On 08/28/2015 07:42 AM, Tothwolf wrote:
With all the different solder alloys I work with regularly, I have to
ask...what type of solder caused that sort of damage? Was it the
alloy itself, or did IBM use a flux which was too active and then
failed to clean away all the residue? If they used a r
Cool. Wonder what it will go for.
JRJ
On 8/28/2015 4:14 AM, P Gebhardt wrote:
>
>
>
>
>>
>> (Rumor was that there was also a CDC-160A in somebody's basement here in
>> town, as well).
>>
>
>
> Speaking of which:
>
> http://www.ebay.com/itm/Vintage-Control-Data-160-Computer-System-Vintage-
On Thu, 27 Aug 2015, Lyle Bickley wrote:
The IBM 1620 at the CHM is a running computer. There were two teams that
worked on the 1620 at the CHM. The first Team got it running.
Unfortunately, IBM used the wrong kind of solder on the core memory and
so the wires of the core memory literally
> On Aug 28, 2015, at 1:30 AM, Chuck Guzis wrote:
>
> ...
> Well, other than the Model I (CADET) typewriter acting as if it were going to
> fly apart at any time, the 1311 disk drive was fun to watch.
Especially if you didn't have the "direct seek" option. I had a one-card
program that would
On 8/28/2015 3:14 AM, P Gebhardt wrote:
We all KNOW the government people still have one running
for your tax . After all the bribes and shady dealings
it gets turned on twice a year. Too old to have the Y2000 bug.
Ben.
>
> (Rumor was that there was also a CDC-160A in somebody's basement here in
> town, as well).
>
Speaking of which:
http://www.ebay.com/itm/Vintage-Control-Data-160-Computer-System-Vintage-Computer-/252070822992?hash=item3ab0978450
Maybe it's the one from that basement :)
Cheers,
Pierr
28 August 2015 03:41
> To: cctalk@classiccmp.org
> Subject: Re: IBM 1620
>
> On 8/27/2015 9:18 PM, Kevin Tikker wrote:
>
> > Thanks very much for the link. Maybe there is one out there
> >
>
> There were two IBM 1620's in the College of Engineering in Madison
On 08/27/2015 10:08 PM, Lyle Bickley wrote:
Many of us on the 1620 Team were also on other restoration Teams -
and As time progressed, it became clear that the IBM 1620, while a
running computer, was not as demonstrable as the other systems. That
- and many of us simply ran out of time working
Great series of books the film was based on
Sent from my iPhone
> On Aug 27, 2015, at 9:28 PM, Chuck Guzis wrote:
>
> On 08/27/2015 09:02 PM, Fred Cisin wrote:
>>>> There were two IBM 1620's in the College of Engineering in
>>>> Madison, WI
>>>
nal 1620
> right now, but the CHM is also trying to restore one.
The IBM 1620 at the CHM is a running computer. There were two teams that worked
on the 1620 at the CHM. The first Team got it running. Unfortunately, IBM used
the wrong kind of solder on the core memory and so the wires o
I went to both Laney and Berkeley City College so you may have a clue.
Thank you
Kevin
Sent from my iPhone
On Aug 27, 2015, at 9:02 PM, Fred Cisin wrote:
>>> There were two IBM 1620's in the College of Engineering in Madison, WI
>> On Thu, 27 Aug 2015, Kevin Tikker wrot
On 08/27/2015 09:02 PM, Fred Cisin wrote:
There were two IBM 1620's in the College of Engineering in
Madison, WI
On Thu, 27 Aug 2015, Kevin Tikker wrote:
A possible lead?
There was one at Merritt College in Oakland during the days when the
Black Panthers started out there.
...and
There were two IBM 1620's in the College of Engineering in Madison, WI
On Thu, 27 Aug 2015, Kevin Tikker wrote:
A possible lead?
There was one at Merritt College in Oakland during the days when the Black
Panthers started out there.
If you make a list of every one that there was, y
On 08/27/2015 09:18 PM, Kevin Tikker wrote:
Thanks very much for the link. Maybe there is one out there
I believe Lewis and Clark College in Godfrey, IL had a 1620
that I saw in about 1980. I have no idea if anyone in the
area still has it.
Jon
A possible lead?
Sent from my iPhone
> On Aug 27, 2015, at 7:41 PM, Jay Jaeger wrote:
>
>> On 8/27/2015 9:18 PM, Kevin Tikker wrote:
>>
>> Thanks very much for the link. Maybe there is one out there
>
> There were two IBM 1620's in the College of Engineer
On 8/27/2015 9:18 PM, Kevin Tikker wrote:
> Thanks very much for the link. Maybe there is one out there
>
There were two IBM 1620's in the College of Engineering in Madison, WI
when I started school, and rumor was that one of them ended up in
somebody's basement. Whether or no
t;> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of william
>>> degnan
>>> Sent: 27 August 2015 20:00
>>> To: General Discussion: On-Topic and Off-Topic Posts
>>>
>>> Subject: Re: IBM 1620
>>>
>>> How many exist on
heh...well I didn't say it was a *good* chance, but one can always hope...
On Thu, Aug 27, 2015 at 5:54 PM, Jay Jaeger wrote:
> On 8/27/2015 3:49 PM, william degnan wrote:
>
> > I'd like a 1620 too please. .. or a 1710 if I have to settle.
> >
> > In all seriousness I may not have the machines
On 8/27/2015 3:49 PM, william degnan wrote:
> I'd like a 1620 too please. .. or a 1710 if I have to settle.
>
> In all seriousness I may not have the machines but I do have a lot of
> 1401/1620/1710 docs on hand in my little private library here in
> Landenberg, should anyone be passing this way
> > Looking for an IBM 1620 to purchase. Any leads greatly appreciate.
> >
> > Kevin Tikker
> >
> >
> > Sent from my iPhone
> >
>
> And, if you find one, as if they have an IBM 1410, while you are at it.
> (As far as I know, NONE of those exist, unl
On 8/27/2015 3:46 AM, Kevin Tikker wrote:
> Looking for an IBM 1620 to purchase. Any leads greatly appreciate.
>
> Kevin Tikker
>
>
> Sent from my iPhone
>
And, if you find one, as if they have an IBM 1410, while you are at it.
(As far as I know, NONE of those exis
27, 2015 at 2:07 PM, Dave G4UGM wrote:
>
>
>> -Original Message-
>> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of william
>> degnan
>> Sent: 27 August 2015 20:00
>> To: General Discussion: On-Topic and Off-Topic Posts
>>
>>
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