Today I got home and my Mouser order had arrived. I soldered in the new
6-position DIP switch and popped a new 1488 in the socket. Nice RS232 data
coming out... for about 10 seconds, then the transmit data line went to
around +2 volts and stayed there. WTF. Tried another one, same thing. Went
On Fri, 16 Aug 2019, ben wrote:
Well with me I have been finding with many searches, the modern browsers
refuse to display sites for "what they figure is unsafe" yet the porn ads
still show. I can find it, but not view it.
I use current versions of Firefox and Chrome/Chromium, and I don't
I am still struggling with my ADM-5. The smoke I mentioned last time came
from a tantalum capacitor decoupling a -20V supply. After removing it, I
got back to the monitor showing a cursor.
Interesting you should mention that... early in the debugging process
(always start with the power
Charles wrote:
> Today the replacement 'LS193 arrived, so I put it in the
> previously-installed socket and the screen is now 24x80 again :)
> I'd been testing with the dip switch in half-duplex mode... For final test,
> I put it in FDX, connected to my HP protocol analyzer, and what do you
> Then imagine that a law is passed in a far away land, and the site owner
> decides it's is too risky to bother with, and they then take the entire
> site down - wiki and fora - with no warning and no access to the material...
Gosh, Steven, I can't imagine for the *life of me* what site you're
I found a newer version of the tech manual on bitsavers, which does mention
the mysterious S8 switch (as well as the S6 switch that fills the screen
with 0's upon clearing).
"The gated EXTENSION port mode, when selected
by switch S8, allows selective transmission of
data from the keyboard, in
Today the replacement 'LS193 arrived, so I put it in the
previously-installed socket and the screen is now 24x80 again :)
I'd been testing with the dip switch in half-duplex mode... For final test,
I put it in FDX, connected to my HP protocol analyzer, and what do you know,
no serial data out.
From: cctalk on behalf of Seth J. Morabito via
cctalk
Sent: Friday, August 16, 2019 8:31 AM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: Archiving information, was Re: ADM-3A question
Paul Koning via cctalk writes:
> Anything worth hav
On Fri, Aug 16, 2019 at 02:21:36AM -0400, Noel Chiappa via cctalk
wrote:
[...]
> Yeah, I added "CHWiki" to the text on the Main Page to make it a
> little easier
Because of curiosity, I tried.
On gog:
=== chwiki - because gog discovers I type from Poland and "chwiki"
looks like Polish word
On 8/16/2019 1:50 AM, Christian Corti via cctalk wrote:
On Thu, 15 Aug 2019, Noel Chiappa wrote:
An additional issue, I think, is that Google is deprecating sites that
use
HTTP, versus HTTPS. I can't comment more, lest I start ranting at the
utter
Not true, in contrary, Google even crawls
> From: Steven M Jones
> imagine that a law is passed in a far away land, and the site owner
> decides it's is too risky to bother with, and they then take the entire
> site down - wiki and fora - with no warning and no access to the
> material...
> ..
> I would
Paul Koning via cctalk writes:
> Anything worth having around deserves backup. Which makes me wonder
> -- how is Wikipedia backed up? I guess it has a fork, which isn't
> quite the same thing. I know Bitsavers is replicated in a number of
> places. And one argument in favor of GIT is that
On 08/16/2019 02:50 AM, Christian Corti via cctalk wrote:
On Thu, 15 Aug 2019, Noel Chiappa wrote:
An additional issue, I think, is that Google is
deprecating sites that use
HTTP, versus HTTPS. I can't comment more, lest I start
ranting at the utter
Not true, in contrary, Google even crawls
> On Aug 16, 2019, at 6:14 AM, Steven M Jones via cctalk
> wrote:
>
> On 08/15/2019 23:21, Noel Chiappa via cctalk wrote:
>> I have on several occasions posted appeals to this list for people to
>> contribute content to it, and gotten almost no response (with one notable
>> exception), in
On 08/15/2019 23:21, Noel Chiappa via cctalk wrote:
I have on several occasions posted appeals to this list for people to
contribute content to it, and gotten almost no response (with one notable
exception), in terms of added content; that was a large part of why I merely
mentioned it in an
On Thu, 15 Aug 2019, Noel Chiappa wrote:
An additional issue, I think, is that Google is deprecating sites that use
HTTP, versus HTTPS. I can't comment more, lest I start ranting at the utter
Not true, in contrary, Google even crawls through FTP sites :-)
Christian
> From: Eric Christopherson
>> Anyway, the whole 'how do we find the info' is a part of why I started
>> working on CHWiki, once I discovered it
> Psst: it would've been a good idea to share the URL to CHWiki.
Well, that passing reference wasn't an attempt to get people to go
On Thu, Aug 15, 2019, 7:38 PM Noel Chiappa via cctalk
wrote:
> Anyway, the whole 'how do we find the info' is a part of why I started
> working on CHWiki, once I discovered it - in addition to the usual
> advantages
> of wikis (good for collaboration, good for adding stuff incrementally), it
>
> From: Seth J. Morabito
>> having stuff scattered across a zillion personal pages (be they blogs,
>> or whatever) is going to make it hard to find the useful one when
>> needed
> The sheer vastness of content available, combined with a Google
> monoculture, combined with
people do not want the
"clutter".
-Original Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of ben via cctalk
Sent: Thursday, August 15, 2019 6:57 PM
To: cctalk@classiccmp.org
Subject: Re: Archiving information, was Re: ADM-3A question
On 8/15/2019 4:33
On 8/15/2019 4:33 PM, Marvin Johnston via cctalk wrote:
Instead of the search engines working to improve AI, they should be
putting more effort into ESP.
However with 'FREE' web hosting vanishing faster the Dodo,
you have lost most of the Small sites that may of had the
information. A blog
Al Kossow via cctalk writes:
> On 8/14/19 8:53 AM, Anders Nelson via cctalk wrote:
>> I hope this thread will be written to a blog post
>
> Buried in a filing cabinet in the basement with a sign that says
> "Beware of Leopard".
>
> Blogs are a stupid way to archive information, almost as
On 8/14/2019 12:46 PM, Seth J. Morabito via cctalk wrote:
It's not clear that it's the dynamic nature of the content he's
unhappy with; it might just be that having stuff scattered across a
zillion personal pages (be they blogs, or whatever) is going to make
it hard to find the useful one when
"and that's why he's cranky. (Well, more so than he usually is :-)"
A wealth of vintage cmp information, but good heavens he is cranky.
--
Anders Nelson
+1 (517) 775-6129
www.erogear.com
On Wed, Aug 14, 2019 at 2:01 PM Noel Chiappa via cctalk <
cctalk@classiccmp.org> wrote:
> >> Al
Noel Chiappa via cctalk writes:
> >> Al Kossow via cctalk writes:
>
> >> Buried in a filing cabinet in the basement with a sign that
> >> says "Beware of Leopard".
>
> Good one!
>
> > From: Seth J. Morabito
>
> > I'm going to respectfully disagree .. the proliferation of
>
>> Al Kossow via cctalk writes:
>> Buried in a filing cabinet in the basement with a sign that says
>> "Beware of Leopard".
Good one!
> From: Seth J. Morabito
> I'm going to respectfully disagree .. the proliferation of modern
> JavaScript frameworks that are designed
Al Kossow via cctalk writes:
> On 8/14/19 8:53 AM, Anders Nelson via cctalk wrote:
>> I hope this thread will be written to a blog post
>
> Buried in a filing cabinet in the basement with a sign that says
> "Beware of Leopard".
>
> Blogs are a stupid way to archive information, almost as stupid
On 8/14/19 8:53 AM, Anders Nelson via cctalk wrote:
> I hope this thread will be written to a blog post
Buried in a filing cabinet in the basement with a sign that says "Beware of
Leopard".
Blogs are a stupid way to archive information, almost as stupid as putting it
on Facebook.
Sent: Wednesday, August 14, 2019 5:02 AM
To: 'Charles' ; 'General Discussion: On-Topic and Off-Topic Posts'
Subject: RE: ADM-3A question
Charles,
I believe that TTL chips suffer from failure or detachment of the bonding
wire that runs from the die to the interconnect pin, which would result
Charles wrote:
>
> After hanging vertically for 36 hrs in a hot upstairs room, more goop seeped
> out from under the keyboard. It now works again. Whew.
>
> While running on the bench for burn-in testing, a cursor problem suddenly
> appeared... it would only move every other keystroke. With the
it suggested that heating the chip up in an oven
could affect a temporary repair (sorry I can't find the reference now).
Dave
G4UGM
> -Original Message-
> From: cctalk On Behalf Of Charles via
cctalk
> Sent: 14 August 2019 00:20
> To: cctalk digest
> Subject: Re: ADM-3A ques
After hanging vertically for 36 hrs in a hot upstairs room, more goop seeped
out from under the keyboard. It now works again. Whew.
While running on the bench for burn-in testing, a cursor problem suddenly
appeared... it would only move every other keystroke. With the technical
description
After replacing the RAM, the display is now back to normal (there's also a
test switch on the motherboard (S6) that switches the display from blank
spaces to all zeroes.
The one that failed was a National Semi 2102, whereas the others are all
from another manufacturer. No sign of previous
Thanks Bill, I hadn’t seen that particular page. As I mentioned already, the
formerly clear “stuff” was so deteriorated I could just pull the glass plate
off with gentle fingertip pressure.
I ran a bead of clear silicone around the outside of the clean plate and CRT
face and bonded them back
On Sat, Aug 10, 2019, 6:02 PM Bill Degnan via cctalk
wrote:
> The clearing of the deteriorating adhesive is documented here and there on
> the web, use heat to separate the outer from the inner screen. Remove the
> inner screen and clean the gunk from the inside of the outer screen...in
>
The clearing of the deteriorating adhesive is documented here and there on
the web, use heat to separate the outer from the inner screen. Remove the
inner screen and clean the gunk from the inside of the outer screen...in
summary ...here are some details
upper case is default... do you mean lower case? Ed#
In a message dated 8/10/2019 8:34:06 AM US Mountain Standard Time,
cctalk@classiccmp.org writes:
I can fix the RAM problem once I can see what is actually on the screen! ;)Also
the wire bracket with threaded ends that holds the flyback
On 8/10/19 8:33 AM, Charles via cctalk wrote:
I also scrubbed off the black anti-reflective coating since it was
significantly scratched and peeled anyway.
um.. you didn't remove the aquadag from the outside of the crt, did you?
No worries Al, I got my EE in '81 back when CRTs were still in
On 8/10/19 8:33 AM, Charles via cctalk wrote:
> I also scrubbed off the black anti-reflective coating since it was
> significantly scratched and peeled anyway.
um.. you didn't remove the aquadag from the outside of the crt, did you?
I decided just to fire it up and see if anything blew... it issued the
expected beep as it came up.
Set the switch to half-duplex and it does actually echo bell (Ctrl-G) and I
can see the screen moving as I type!
But there is some kind of garbage every other row, although the cursor
moves and
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