> I'm guessing it was a blob of foam, which has deteriorated, but maybe it
> was a metal spring, or a piece of u-shaped plastic etc.
May depend on the model, but mine has a spring under the plastic reset button in the top of the case and one of those metal domed tactile switches on the PCB.
This series of articles focuses mainly on physical design, of cases
and so on, but there are some technical details in the articles too.
Note that this is the landing page -- at the bottom of the page are
links to other articles in the Inexhibit series, such as the Holborn
9100 and Olivetti Programma 101.
Liam Proven ? Profile: https://about.me/liamproven
Email: lproven at cix.co.uk ? Google Mail/Talk/Plus: lproven at gmail.com
Twitter/Facebook/Flickr: lproven ? Skype/LinkedIn/AIM/Yahoo: liamproven
UK: +44 7939-087884 ? ?R/WhatsApp/Telegram/Signal: +420 702 829 053
> From: Klemens Krause
> We clean our RK05 disks in a very robust way: with cheap burning spirit
> and paper towels. ... We rubbed away thick black traces from occasional
> head crashes and we never removed the oxide coating with this torture.
I am about to get a large batch of RK05 packs, so I am interested in the
details of this.
First, what is 'burning spirit'? (I assume this is a straight translation
into English of some German term, but not knowing German... :-) After poking
around with Google for a while (hampered no little by the fact that it's the
name of a band, and also a term in World of Warcraft :-), it seems like it
might be acetone?
I recently acquired a functional Sun 2/120.
The framebuffer I have is switchable between TTL and ECL, so I can use
either an Sun 2 or Sun 3 monitor, which I am looking for.
I am also looking for a keyboard and mouse.
If anyone on list has any of these items and would be willing to sell them
to me, please contact me. I plan to completely restore the system.
ian.finder at gmail.com
I just saw that mails from some people now arrive as desired (real
sender, reply-to list), but some (e.g. myself) are still mangled with
"xxx via cctalk" - did I miss a setting?
Can anyone who's been inside an Intellivision confirm that there's supposed
to be a little foam disc beneath the reset switch plate?
I picked a system with a box of cartridges up earlier, half expecting the
machine to be dead (I was figuring it was going to be a blob of
easily-dead-after-so-many-years custom logic inside, but it's more like a
"real computer" in nature). It *was* dead, but the [initial, at least]
issue seems to be that the reset switch consists of a metal plate which is
supposed to make contact with the PCB when pressed - and presumably is held
away from the PCB by something when at rest. Except that there's no
"something" in this machine - with the machine the right way up, the plate
is free to contact the PCB, holding it in permanent reset.
I'm guessing it was a blob of foam, which has deteriorated, but maybe it
was a metal spring, or a piece of u-shaped plastic etc.
This card is sitting in a IBM RT PC.
What kind of card is it? The WD1935 seems to be a SDLC chip. I cannot find
any reference to the numbers P/N 6247874 (bottom layer etch) or the number
on the sticker on the backside: 6247871G001
It is connected to an IBM marked dongle which has 4 BNC connectors.
Is it a 3278-3279 emulation board?
Good hear it stood the test of time! As an HP PC dealer in the 80s
into early 90s we ha a calculator contract with HP also and...
we sold the heck out of them!
Is it the only one of the 10 series calcs that stayed in production?
I have a set of the special demo versions that were mounted on a
that had been in the PHX HP Corp demo center... when they redid that they
Hoarded stuff and sent them over. For some of the 10 series that were
still being used
we had them on the display floor the others went into the the suites
next to the business
in the historical display.
In a message dated 4/2/2017 8:50:16 P.M. US Mountain Standard Time,
cctalk at classiccmp.org writes:
On Sun, 2 Apr 2017, Ed via cctalk wrote:
> That is an undertaking indeed! I had not seen this.... Ed#
> Someone said the 12c was still being made?
The 12c never went out of production. It has been continuously updated.
A lot of bankers, insurance people, etc still rely on them.
dave at 661.org
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
Q: What is the most annoying thing in e-mail?
That is an undertaking indeed! I had not seen this.... Ed#
Someone said the 12c was still being made?
In a message dated 4/2/2017 9:00:53 A.M. US Mountain Standard Time,
cctalk at classiccmp.org writes:
A few months ago I had a prototype of this 42S clone in my hands.
It looked and felt very promising!
I?ll will buy one when it will be available.
For those of you who are interested, please follow the discussions on
hpmuseum.org <http://hpmuseum.org/> forum.
> Am 10.03.2017 um 16:34 schrieb David Griffith via cctalk
<cctalk at classiccmp.org>:
> There's a Swiss guy who's made a name for himself by producing working
replicas of classic HP calculators. See https://www.swissmicros.com/. I
recently discovered his post on Youtube a video showing off an enhanced
replica of my favorite HP calculator, the HP42s. This one is called the DM42.
Here's the video: https://www.youtube.com/watch?v=0LK7JotR728
> David Griffith
> dave at 661.org
> A: Because it fouls the order in which people normally read text.
> Q: Why is top-posting such a bad thing?
> A: Top-posting.
> Q: What is the most annoying thing in e-mail?