On Fri, 11/10/17, Dave Wade via cctalk <cctalk at classiccmp.org> wrote:
> https://www.theguardian.com/global/2017/nov/08/geoff-tootill-obituary
This raises the question, is there anyone still alive from those
first-generation projects? I had guessed that at age 101, Harry
Husky was the last one still alive when he passed away earlier
this year. To put a finer point on the question, is anyone who
was involved with the original designs of the ENIAC, the Baby,
the EDSAC, the Pilot ACE, the Z1, or the Harvard Mark I still
with us?
BLS
I know that this an old thread, but I had another VT100 with broken power
switch and so I dug up what I used to buy.
This has quick connect tabs so it is needs no modifications to fit. It has
a metal handle and feels quite sturdy.
https://www.mouser.se/search/ProductDetail.aspx?R=0virtualkey0virtualkeyST2…
2017-08-29 22:25 GMT+02:00 E. Groenenberg via cctalk <cctalk at classiccmp.org>
:
>
> Thanks for the info.
> I'm in the Netherlands, so no Home Depot branch here, but now I have seen
> the picture of the replacement I can look locally or check with
> digikey/farnell to see what they have in their catalog of switches.
>
> Regards,
>
> Ed
> --
> Ik email, dus ik besta.
>
>
> On Tue, August 29, 2017 21:47, Santo Nucifora via cctalk wrote:
> > I've replied to this and helped someone else out before as it seems to be
> > a
> > frequent question.
> >
> > I've replaced two VT-100 switches with chrome "bat" handle switches from
> > Home Depot in Canada shown here:
> > https://www.homedepot.ca/en/home/p.t...000104171.html
> > <https://www.homedepot.ca/en/home/p.toggle-dpst-20a-125vac-
> of-1cd.1000104171.html>
> > The one at the USA Home Depot is here:
> > https://www.homedepot.com/p/Gardner-Bender-20-Amp-Double-
> Pole-Toggle-Switch-1-Pack-GSW-14/100149490
> >
> > I had to remove the screws and filed the terminals down a little because
> > the terminals were a little wider than the original connectors but it
> > works
> > like a charm and will not break. It is almost a direct replacement
> (except
> > for the terminals needing some filing).
> >
> > You can probably pick one up on the way home if you are in North America.
> >
> > Hope this helps.
> > Santo
> >
> > On Tue, Aug 29, 2017 at 3:38 PM, John Wilson via cctalk <
> > cctalk at classiccmp.org> wrote:
> >
> >> On Tue, Aug 29, 2017 at 09:04:11PM +0200, E. Groenenberg via cctalk
> >> wrote:
> >> >Does somebody maybe have a spare switch of a VT-100 (the one at the
> >> back)?
> >>
> >> If you get stuck, there's a switch that's made as a replacement part for
> >> Fender guitar amps which, apart from having a metal handle instead of
> >> plastic, is a very close match to the VT100 power switch. Really it's
> >> what DEC *should* have used ...
> >>
> >> John Wilson
> >> D Bit
> >>
> >
>
>
Can ya blame him? Back in his day 2s were *real* 2s.. bigger and tougher. You try and add 'em up, assuming they'd stay still long enough and stop wrastlin' with ya and who knows how big they'd be.
-------- Original message --------From: Evan Koblentz via cctalk <cctalk at classiccmp.org>
My own father does this and it drives me crazy. I'll say, "2+2=4" and
he'll say, "I believe it's 5" ... DAD IT DOESN'T MATTER WHAT YOU
FRIGGING BELIEVE, 2 PLUS 2 IS STILL 4!!!!!!
The link below is from the computer museum in Cambridge, UK, which seems to
have a copy of an HP 2640 terminal manual I am looking for. Is anyone from
that museum on the list? Does any of the UK members know them?
http://www.computinghistory.org.uk/det/14373/HP-2640-Series-Character-Set-Ge
neration/
Does anyone on the list have a copy of this manual?
Marc
There are a few people out there struggeling with their 4052's :
On ftp.dreesen.ch/FTP/TEK4052 they will find description, schematic, pictures and romdumps for the Diagnostic ROM pack, as used by the TEK engineers in the day.
Also listed are the the TEK-supplied CRC's for all ROMS in the 4052/54 systems.
No special components used, so nothing to stop you building your own Diagnostic pack. If anyone does so they can contact me if they need further info.
?Jos
Sorry for the spam - I'm trying some ideas to see if I can figure out why I
don't get cctalk/cctech messages anymore (for about a month now). -- Ian
--
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
Principal Investigator, "Reflections on Early Computing and Social Change",
UW IRB #42619
Archivist, Voices From the Rwanda Tribunal <http://tribunalvoices.org>
Value Sensitive Design Research Lab <http://vsdesign.org>
University of Washington
There is an old Vulcan saying: "Only Nixon could go to China."
> From: Dave Wade
> ENIAC had been configured in stored program mode earlier in the year
> and had run a program stored in the function switches, e.g. ROM
> ...
> Despite the fact that when running stored programs ENIAC's parallel
> processing features were not available, it was exclusively in this mode
> from 1948 onwards.
This may have been mentioned here already, but if not, there's a good new
book out which covers this phase of ENIAC's existence in considerable detail:
Thomas Haigh, Mark Priestley, and Crispin Rope, "ENIAC In Action: Making and
Remaking the Modern Computer", MIT Press, Cambridge, 2016
It's a very interesting and well-done book; I highly recommend it.
> From: Brent Hilpert
> The best that can be said for your position is that you (and the
> ENIAC/Mauchlyite crowd) have a particular opinion and definition
> regarding 'stored-program computer'.
I'm harly a member of the "ENIAC/Mauchlyite crowd" (in fact, I used to not
have a good impression of them at all), but I thought Haigh et al made a
pretty good case.
Noel
In case you missed it we (the Vintage Computer Federation) is putting
together a Vintage Computer Festival (VCF PNW) at the Living Computer
Museum+Labs in Seattle. We are actively looking for exhibitors and
speakers for this new show.
The show will be held February 10th and 11th, 2018. We are not planning to
charge for admission to the show so visitors will be able to enjoy the
museum, the exhibits, speakers and the consignment area all for the normal
cost of museum admission.
We would like to get exhibitor registrations wrapped up by the end of
November so that we can move to the next stage of planning. If you have an
idea for an exhibit and would like to hang out at the museum for two days
talking vintage computers then consider signing up today. Have an
interesting topic for a presentation? We need those too ... Newbies need
not be scared; I'm new to this as well.
More information can be found at
http://vcfed.org/wp/festivals/vintage-computer-festival-pacific-northwest/
. Please email me directly if you have questions or need encouragement.
Regards,
Mike Brutman
michael at vcfed.org
