I hate to keep posting sad news .... but there is more .... Rick Hanson,
the owner of Club100.org, died of of cancer this weekend. Rick was an
incredible asset and friend to the Model 100/102/200 community.
----- Original Message -----
> Date: Mon, 02 May 2011 21:31:01 +0200
> From: Jos Dreesen <jdr_use at bluewin.ch>
> Subject: 8/L core memories ( long, with pic's, hopefully of interest )
> To: General Discussion: On-Topic and Off-Topic Posts
> <cctalk at classiccmp.org>
> Message-ID: <4DBF0675.9000301 at bluewin.ch>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
<snip>
> Pending a company move, the whole setup was now set away for a few weeks.
> In the new lab I set about reassembling the stack.
>
> Which is when disaster struck ... The new magnifying glass setup was
> unstable and landed where it could cause maximal damage : the coremat
> itself, with around 40 cores broken........
>
> Major major bummer, and really only myself to blame. Not only was the
> stack now lost, but I also now cannot produce evidence that the core
> repair worked.
>
I feel your pain; all that tedious work and then... (a few similar T-shirts
in my wardrobe ;-) )
> The Fabritek has two known good coremat-pcb's, the Dataram has two
> potentially good coremat PCB's.
> I have spent rather too much time on this, and am open to offers on these
> stacks, in the condition described above.
>
> If someone wants to sell their known-defective 8L / 8I Dataram/Fabritek
> corestacks, I would also be interested.
>
>
> Jos Dreesen
No idea if they're useful or compatible, but I have a damaged MDS core board
and a jar of new loose cores in two sizes somewhere, in case you or anyone
else is insane enough to consider repairing those boards.
mike
> Dies tguis just miove the head up and down, or does it also move it from
> side to side. I am wondering if it's there to adjust the depth of
> engagement between the rack and pinion.
It moves the heads in an arc around the rack and pinion as a pivot point. The engagement of the pinion does not seem to be adjustable. The motor can be rotated but not shifted radially as far as I can see. Also the track 0 sensor is adjustable.
/Jonas
CC folks, I have a friend who is looking for a copy of Processor
Technology's DISKT, their program for exercising the Helios disk
drive, anyone have that out there?
bruce damer
At 12:00 -0500 5/3/11, Jos wrote:
>Major major bummer, and really only myself to blame. Not only was
>the stack now lost, but I also now cannot produce evidence that the
>core repair worked.
Jos,
you must have felt terrible. I'm really sorry that happened,
but I'm awe-struck at the work you put in investigating and repairing
that far, to say nothing of photo-documenting the whole way as you
went. That was a great job, and I very much appreciate the post.
Thank you most kindly! You deserved a much better outcome.
On the broken cores, hm ... do the same places that glue logic also glue cores?
:-)
--
- Mark 210-379-4635
-----------------------------------------------------------------------
Large Asteroids headed toward planets
inhabited by beings that don't have
technology adequate to stop them:
Think of it as Evolution in Fast-Forward.
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Date: Sun, 17 Apr 2011 11:35:24 +0200
Groups: alt.folklore.computers,de.alt.folklore.computer,alt.sys.pdp11
From: =?ISO-8859-15?Q?J=F6rg_Hoppe?= <j_hoppe at t-online.de>
Org: albasani.net
Subject: PDP11GUI: Home page has moved
Id: <ioec8s$gro$1 at news.albasani.net>
========
Home page and online doc of PDP11GUI have moved to
www.retrocmp.com/tools/pdp11gui
The download is an attachement now.
The old page is still alive, but will disappear without further notice.
Enjoy!
Joerg Hoppe
Hi guys,
Does anyone happen to have a working version of news124f1.tgz from the
UTZOO Usenet / NetNews archive set?
Part of it is currently available from
<http://www.skrenta.com/rt/utzoo-usenet/>, but the above file is
damaged, and all the .toc files are missing... here's what you get if
you try and decompress the file:
tar: Unexpected EOF in archive
tar: Unexpected EOF in archive
tar: Error is not recoverable: exiting now
'Nuff said really... if anyone knows of an alternative source for these
files (ideally one which has the complete 124F1 file), please let me know!
Thanks,
--
Phil.
classiccmp at philpem.me.uk
http://www.philpem.me.uk/
Hi guys,
I'm going to stick my neck out a bit, and assume you all saw the
screenshots I posted this week. If you didn't, well... you missed a treat :)
I've just committed the current "development alpha" of the DiscFerret
software to the DiscFerret Mercurial repository. You can access the
files at the following address:
http://hg.discferret.com/software/merlin/
Hit the "zip," "gz" or "bz2" link on the top toolbar and you can
download a ZIP, tar-gzip or tar-bzip2 file containing all the current
source files.
At the moment, I've only tested Merlin on Linux (specifically, Ubuntu
10.10 "Maverick Meerkat"), although *in theory* it should also build on
the various BSDs and Mac OS X, as long as you have a working copy of the
GCC C++ compiler, and the wxWidgets libraries for your system (note that
'wx-config' must be on the PATH).
At the moment, it'll only read "Catweasel IMG" files. These are
basically dumps of the Catweasel data buffer, sampled at 28MHz, in the
following format:
File := 1 or more "Track" blocks
Track :=
uchar cylinder // physical cylinder (track)
uchar head // physical head (side)
uint32le payload_length
uchar[] payload // length specified by payload_length
uchar = unsigned char, an 8 bit unsigned value
uint32le = unsigned integer, 32 bit, little endian.
Data is exactly as extracted from the Catweasel memory; 28MHz clock
rate, index in the MSbit, bits 6..0 contain the timing value.
Please feel free to post your comments on-list, or email me in private
if you prefer.
Thanks,
--
Phil.
classiccmp at philpem.me.uk
http://www.philpem.me.uk/
At 19:06 -0500 4/29/11, cctalk-request at classiccmp.org wrote:
>...The other side to this is that unless you show kids how do fun things,
>they will have a go on their own. Possibly with things that are a lot
>more dangereous than a car battery and lead.
Oh yes! My kids have done archery, rock climbing, sailing (with
*lots* of wind), bicycling (on public roads), snorkeling in the
ocean, model rocketry, etc. etc. etc. with my encouragement and
supervision. Lots of warnings, but (hopefully) lots of fun, too.
At 19:06 -0500 4/29/11, ard wrote:
>...I think I've expressed this view before... Everything has some risks
>associated with it, even getting out of bed in the morning. So I could
>either spend my life lying in bed and die of boredom or I can get on with
>what I enjoy, even though there are some dangers in doing so. I'll take
>sensible precaustions (not drinking the electrolyte as it may contain
>heavy metal ions, not eating solder, making sure high voltage devices are
>isolated and discharged before I work on them, etc). My life will
>probably be shorter doing that, but it will be a lot more enjoyable which
>would seem to be the important thing.
I agree almost completely with this. My one provisio is that I'm much
more likely to take risks when I (think I) understand them and know
how to minimize or control them. There's a lot of chemistry and
biochemistry that's not in that category for me, so I'm more cowardly
there.
At 5:03 -0500 4/29/11, Grumpy Ol' Fred wrote:
>It has a radio that can be used while working,
While my '68 Plymouth 12V bench supply appreciates the compliment,
it's not warranted. The AM radio came out in the '80s, and was
replaced by an AM-FM-Cassette which subsequently failed. Wish I'd
kept the AM radio...
But Fred left off one of the most important auxiliary functions! It
can also function as a dolly for moving computer cabinets around the
workshop at speeds up to ~100 mph (well, OSHA-type regulations
notwithstanding...)!
--
- Mark 210-379-4635
-----------------------------------------------------------------------
Large Asteroids headed toward planets
inhabited by beings that don't have
technology adequate to stop them:
Think of it as Evolution in Fast-Forward.
