I have managed to completely disassemble the bad Osborne 1 keyboard -
remove all key mechanisms (body, plunger, main spring and actuator spring),
remove the 3 layer membrane from the aluminium backing board and separate
all three membrane layers (bottom, spacer and top) - all without damaging
or losing any bits.
I then carefully cleaned off all adhesive and other sticky gunk from all
layers using various solvents including water, isopropyl alcohol and white
spirit.
The silver tracks remained undamaged as confirmed with a multimeter.
I then carefully reassembled the 3 layers, inserted and super-glued the
keyboard mechanisms in batches, testing after each batch.
I did not use any glue to reattach the 3 membrane layers so they are held
together only by the keyboard mechanisms with their prongs protruding
through the layers into the aluminium backing plate to which the prongs are
super-glued.
I sealed the edges around the membrane using Kapton tape to provide
protection from dust etc. The tape also attaches the membrane edges to the
aluminium backing plate.
All keys except the "Alpha Lock" key work perfectly. It appears that I have
damaged the address line 7 on the bottom membrane. I can live without
"Alpha Lock" so I did not pull everything apart again to fix this
un-important key.
The conclusion is that membrane keyboards can be fixed if your life depends
on it. It is absolutely uneconomic though. I worked about 30 - 40 hours on
the keyboard alone. Working Osborne 1s sell for between US$100 and US$300
on Ebay.
Regards
Tom Hunter
Hey all --
Got a nice 8KW omnibus core memory board here, designated the "E1" from
Keronix, that almost works except that bit 1 is off in the weeds
somewhere. Not a lot of information out there on Keronix hardware, anyone
have any docs? The board came with a sheet describing the addressing
configuration, but that's it.
Thanks as always,
Josh
All the 8 m and f I had when in comp. Biz in the 80s had the full front panel...?? guess I lucked out...
Now,8a. Could cone either way into my shop though....
On Friday, November 20, 2020 Pete Turnbull via cctalk <pete at dunnington.plus.com; cctalk at classiccmp.org> wrote:
On 20/11/2020 16:55, ED SHARPE via cctalk wrote:
>
> Go for a 8m or f? same omnibus and easer to lift as only onevnibuss panel!? -
Also a switchmode PSU which is much lighter than the -8/E linear supply.
But the -8/M normally has the minimal panel with the power key and
minimal toggle switches.
--
Pete
Pete Turnbull
If you have an older pre-C99 system, I've backported a TLS 1.2 library to gcc
versions as early as 2.5 as long as it has 64-bit ints (long long, usually)
and stdarg.h.
https://github.com/classilla/cryanc
As a test, with a suitably agreeable (or confusable) browser, here are
various period browsers visiting modern HTTPS sites through carl, the
included demonstration application which can also act as a TLS proxy. The
proxy is running on the same machine, no tricks! OmniWeb, at least two
flavours of NCSA Mosaic and MacLynx are all demonstrated.
https://oldvcr.blogspot.com/2020/11/fun-with-crypto-ancienne-tls-for.html
--
------------------------------------ personal: http://www.cameronkaiser.com/ --
Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com
-- Good software lets me sleep. -- Michael W. Lucas ---------------------------
Hello, I have pulled together a website with links to resources and
information on SEL, or Systems Engineering Laboratories.
http://mnembler.com
SEL was a computer manufacturer in the 60s and 70s which later was acquired
by Gould and then Encore. They made many major innovations and were
instrumental in the success of the Apollo program.
The website is still a work in progress, but I did want to share it with
yall.
-Eric
If it's a windoze system, modified a bare-bones keylogger about 10
years ago which records all keystrokes (can get time of key_press,
key_release) and also monitors all mouse clicks as well as title of
window clicked on. Can also record every mouse event which takes up
a LOT of disk space. Just hooks keyboard and mouse events and works
even on hospital systems which are fairly locked down. Written in
VB6 and also wrote a program to either look at keyboard/mouse events
over time or to dump text typed in. Has saved lots of work for me as
windoze has a bad habit of crashing when I'm 20 minutes into writing
a note and can get all keystrokes that were saved to disk during this
time. Initially written to find out how much time I spent
IFOK. Also has a stealth mode where keylogger window hidden and can
be brought up with a key sequence and then need a password to stop
it. Not very stealthy as can be easily terminated through ProcessExplorer.
Could always use Wireshark to capture all packets exchanged while
they're on computer.
>I have kids that after corona are in lockdown, so they are on
>computers all the time.
>Supposed to be doing schoolwork, but no, feedback from the school is negative.
>
>Can I trap some traffic from these PC's and what software would you recommend?
>
>Randy
I have kids that after corona are in lockdown, so they are on computers all the time.
Supposed to be doing schoolwork, but no, feedback from the school is negative.
Can I trap some traffic from these PC's and what software would you recommend?
Randy
Hi,
On 11/19/20 11:25 AM, Richard Milward wrote:
> Yes, my latest message did show up today, I just saw it.
> But I don't understand your "-cctalk / +direct" comment.
I removed cctalk the mailing list that I received the email from. I
then added you as a direct recipient.
> I don't subscribe to the list, I get enough emails as it is!
Did you send an email to the cctalk mailing list?
If you sent to it and you aren't subscribed, perhaps your messages have
been held for moderation. That would account for delay.
> Thanks.
You're welcome.
--
Grant. . . .
unix || die
Hello,
I have the NCDbridge v. 4.0 software, and could send you a copy. I am still
looking for XpressWare, unable to find. I use for host a Raspberry Pi with
TFTP (can not get NSF to connect..), the Tektronix kernel (os.350) and
other stuff is in /opt/tekxp/boot on the host.
Best regards,
Francis Massen
https.//computarium.lcd.lu
I've sent a few things to this address, but they haven't shown up in the
regular digests I get. How do I get something into the digest so other
folks can see it? (Or does it have to be about DEC machines? Ha-ha!)
Thanks!
--
**Richard