On 11/3/2003 07:14 PM -0600, cctech-request(a)classiccmp.org wrote:
>chris wrote:
> > ...
> > Can anyone recommend a glue for plastic that doesn't suck. Testor's no
> > longer makes usable plastic model glue. The tube is labeled as "for
> > polystyrene or ABS plastic", but I think scotch tape would hold better
> > than this crap will.
"Glue" is very plastic dependent. Different solvents or adhesives for
different plastics.
Most plastic models are styrene, and the solvent in your typical model
"cement" is MEK (Methyl Ethyl Ketone) which can be bought by the pint in
the paint/solvent section of good hardware stores.
Many model builders use liquid cement, which avoids many of the fillers and
other stuff in the viscous tube cements. They and other smelly compounds
are in there to discourge sniffers, not eye lid accidents.
> >
> > SuperGlue (Krazy Glue, whatever the brand on that tube says) doesn't do
> > any better.
> >
> > I've got a plastic push gear I'm trying to glue back together, and so far
> > three different glues haven't done squat! The last one I tried was some
> > brand of a super glue designed to fill gaps and bond most anything to
> > anything... yeah right! As soon as the gear was pushed, it snapped at the
> > glue line again (after letting it dry all weekend).
> >
> > So what's a good plastic glue that I can buy, and where can I get it?!?
> > Damn parental groups worrying about kids glueing their eye lids shut have
> > ruined it for us all!
There is nothing good for everything, and I don't thing anything will be
able to stand up to the shear force on your gear teeth. Sorry.
Dave.
Last week I drug home a Teletype machine just seconds before it was
going to be tossed in a dumpster but I can't identify it. It LOOKS like a
model 28 KSR Compact as seen at
<http://www.vauxelectronics.com/gil/tty/teletype_corp.htm> but the only id
tag that I can find on it says TT-187A/UG. Inside is another tag that says
MX-1114A/UG Keyboard. Can anyone id it from those numbers? Also found a
second piece that looks the M28 Transmitter-Distributer shownon the same
page. The label in it says CY-871/UG TT-69A/UG. I need help id'ing this one
too. The property on it says that it came from McDonald Douglas and that
it's a "reader, tape".
Joe
How do I break into a NEXT machine where I know no passwords, root or
otherwise? Is it possible to make this machine usable or am I going to
have to wipe the drives and start over again? Any help is appreciated.
--
Wayne Talbot <awt(a)io.com>
I've decided that I don't really like old PC's(altho I'll still keep
my 5150), so I am getting rid of my Compaq Portable. It worked last I
plugged it in about a year ago, I haven't tried it since - so no
guarantee that it still works(but it should). It's been sitting in
the basement and never gets used and I have too much stuff so it has
to go. It has a half-height hard drive - something like 20 or 40MB,
and a full-height 5.25" floppy drive. It's available free to the
first person who can pick it up in Portland, Oregon. This is a
pick-up only, I'm not going to ship something this big. Any takers?
-JR KD7BCY
> I still prefer to use a sink full of hot soapy water, and a medium stiff
> paint brush, and lots of elbow grease. The brush gets down into the cracks
> and crevasses, and any texturing on the case. I also prefer this method
> because I enjoy the act of scrubbing everything up. I like to see the
> cleaned piece emerge from years grime and dirt, and the work gives me time
> to think. A toothbrush and a facial buff pad are also useful.
Lestoil liquid cleaner diluted with a little hot water will remove the most
astonishing amount of sheer crud of anything I've ever tried that's not
either an abrasive or a solvent. Use it with a brush; let it sit awhile.
..Seth Lewin
If there is any one local to Houston TX that is interested in a set of
RSX11M+ Version 2.1 ( and a few 11M 4.1) manuals please let me know OFF list.
A good customer of mine is about to throw them out.
Sorry it will need to be a local pickup.
Yes I am still subscribed but have not been able to keep up with all the
traffic.:(
Thanks
Dan
and didn't the thing have to have a load to test it ?
-pete
-----Original Message-----
From: Tony Duell [mailto:ard@p850ug1.demon.co.uk]
Sent: Wednesday, November 05, 2003 1:06 PM
To: cctalk(a)classiccmp.org
Subject: Re: PDP-11/44 want list
>
> John
> On Tue Oct 8 20:11:58 2002, you posted about your 11/44.
> I was searching for help with the H7140 power supply when
> I came across your post. I recently tried to power up
> a system I got a couple years ago, and have a flashing 'DC On'
This generally means one or more of the power rails is out-of-spec...
> indicator. I don't know how serious this is, or if I might be able to
> repair/adjust it with some guidance. Suggestions? I have no
> documentation on the power supply.
You _need_ the schematic. The H7140 is one of the most complicated PSUs
you'll ever come across, and it's also dangerous inside. There's
rectified mains (400V DC at essentially unlimited current -- the
smoothing caps are the size of coke cans!) on screw terminals on the top
of
some of the PCBs. This _will_ kill you, if you touch it. Not 'might',
will.
Basiclaly, there are 3 switch-mode PSUs in that box. The first is a
small
one, used to power the PSU control circuitry. The second provides the
+5V
and +/-15V logic supply rails. The last provides a +36V rail that can be
battery-backed. That one is then regulated down to +/-12V and +/-5V for
the memory boards. It also supplies the H-bridge driver that provides
the
35V 70Hz supply for the fans.
The schematic for this supply is a dozen or so pages. I wouldn't want to
work on one without it in front of me, even though I've repaired them
before...
-tony
For all you PS/2 fans out there, I've got the following MCA ethernet
cards available.
3Com Etherlink/MC (AUI, BNC)
3Com Etherlink III MCA (AUI, BNC; 2 of these cards available)
Artisoft 10569 (BNC, RJ-45; "Alice" chipset)
Anyone want them? Price is postage plus $1.00
-chris
<http://www.mythtech.net>
I unsubscribed from this list because of the volume,
but I still read the monthly archives. I noticed than
some people were wondering about the HP CRT mold
problem. I really did solve it, by building a wooden
box (to contain the IMPLODING crt), and mounting the
CRT in it. Then, I went to the hobby store and got
some nichrome wire used in cutting foam for model
airplanes. I used an old AT power supply at 12 volts
to power the wire, to just below red hot (I determined
the length of nichrome wire to do this with
expermentally, it was about 3.5 feet). I made wooden
handles with screws to hold the wire as I sliced
through (very slowly!!!) the old RTV, keeping the
nichrome wire towards the front glass and not touching
the CRT. after the front glass came off, acetone was
used to remove the remaining old RTV, and all glass
surface were cleaned spotless before reassembly with
aquarium RTV around the edges. Of course, this was all
VERY VERY hazardous and no SANE person should EVER
even CONSIDER doing this (liability issues...).
I completely restored my 2644A including getting both
tape drives working, good matching paint, and I even
buffed the yellowing keys back to original condition
(very tedious work). But it is an amazing, cost is not
object machine. The switching power supply is crystal
controlled!!!
My tube didn't have very serious phosphor burns so I
felt that it was worth this effort.
If anyone wants the CRT box they can have it for the
cost of shipping. Hope I won't have to use it again!
You actually can buy NEW crt's like this one - for
$250!!! I also put new CRT's in my ADM-3a's (much
cheaper, around $45 shipped, as I recall).
Some details on the HP and ADM-3a CRT replacements are
at:
http://juliepalooza.8m.com/sl
I've been working on 6120's, tiny paper tape readers
powered by laptop power supplies, and a Scelbi clone
capable of running SCELBAL (which I have resurrected).
=====
-Steve Loboyko
Incredible wisdom actually found in a commerical fortune cookie:
"When small men cast long shadows, then it is very late in the day."
Website: http://juliepalooza.8m.com/sl
__________________________________
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I came across your email on the internet and was wondering if you might be able to help me. My wife is a court reporter of about 20 years. She is using an Xscribe XEC5. Not unlike my wife and I the cpu is getting a little long in the teeth. It is starting to have a lot of problems and we can't find anyone who can work on it. I noticed in your email that you had found and old XEC5 do you know how we might purchase such a unit. Or do you know anything about how I might find a manual on how to install a printer on the XEC5? I know a fair amount about computers but the XEC5 is an animal of a different color. Any help you can offer will be greatly appreciated.
Thank you.
Dr. George Morten
Director of Office of C.H.A.P.s
Career, Health, Accommodations,
and Personal Counseling Service
California State University Channel Islands
One University Drive, Camarillo CA 93012-8599
805-437-8510 (phone), 805-437-8529 (fax)
george.morten(a)csuci.edu
