Hi Dan,
I am interested, but you need to think about shipping it, on my cost no
question. On the other hand, I will try to organise a VAX-Station, I think,
I can get a 4000 or something like this, maybe more.
With best regards
Gerhard
PS: Do you have pictures?
Hi:
I have reciently gotten the HP 64223B control Board and 64224A 80186 emulation Pod
for the HP 64000 Development System and am looking for the software to use this hardware
in my system any help would be greatly appreciated.
Jim
jimgeneva at yahoo.com
From: "F.J. Kraan" <fjkraan at xs4all.nl>
Sent: Sunday, October 05, 2008 10:01 PM
To: <cctech at classiccmp.org>
Subject: Problems with 2114s
> Tony Duell wrote:
>> the card. As soon as I spotted this was implemented with 2114s [1]s, I
>> knew what to do. I replaced them, and put the card back in, not
>>
> I heard before that 2114 are considered unreliable. Is there an overview
> of brands that are not reliable? I have a computer in repair, a DAI,
> 8080 CPU with special stack RAM implemented with 2114s, so that could be
> the problem. But it would be nice to be more sure before soldering them
> out.
> An image of the suspect RAM is here:
> http://electrickery.xs4all.nl/tmp/2114s.jpg.
>
> Greetings,
> Fred Jan
Hi Fred Jan,
are you sure those are 2114's?
Not that I am 100% sure, but to me those are 2111 RAMs, 400 ns types.
- Henk, PA8PDP
I still have the following S-100 boards for sale if anyone's
interested:
Wameco QMB-9 "The Little Mother" 9-slot motherboard with five
connectors.
http://tinypic.com/view.php?pic=20qzvq0&s=4
8K static RAM (2102) board by Ithaca Audio, fully socketed and
populated. Needs a couple of heat sinks for the 7805 regulators.
http://tinypic.com/view.php?pic=29lefr8&s=4
Piiceon 8K Program Saver board (2708 EPROM programmer). Complete
except for the TL497CN switching regulator chip. Includes two
2708's, can hold eight.
http://tinypic.com/view.php?pic=2r7x7jt&s=4
NOTE: The above boards were never powered up or tested (lost
interest in the early '80's). No guarantee they will actually
work!
VB-1B Video Interface card by Solid State Music. This one was
actually working with a different (homebrewed) 8080A board way
back in 1979. I think it's 64 characters x 16 lines, monochrome of
course.
http://tinypic.com/view.php?pic=2qa6bde&s=4
Please make offer on one or all. Shipping will be from zip 65775
(US).
thanks
Charles
I've added a few user manuals and such to my manuals page, some of which
might be of interest...
http://mysite.verizon.net/rtellason/manuals.html
--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, a critter that can
be killed but can't be tamed. --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin
are now up under
http://bitsavers.org/bits/ATT/unixPC
with the exception of the virtual device interface disk, which
was completely unreadable (seems odd, since all the rest read
perfectly)
Thanks for the replies, all, especially Tony Duell who had it
spot-on:
>This normally means there's a short in the keyboard matrix, as if one key
>is stuck down.
>
>What I would do is open up the keyboard casing (there are 2 screws under
>the plastic posts/feet) and remove the internals.
(snip)
>Connect the PCB to the terminal with the normal cable and power up. Most
>likely the LEDs will go through the normal sequence and there'll be no
>error message, which shows the fault is in the keyboard itself.
The LED's do indeed cycle when the isolated PCB is hooked up, and
eventually "VT220 OK" appears on the screen. So now I either have
to find the shorted key (it's pretty dirty in there so blowing
with compressed air might help) or just get another keyboard. I
won't try and wash it after reading the warnings here.
BTW I see one on ebag right now (190254818657) but it's a
"VT220-Style" unit, made by another manufacturer. Think it'd work
with a real VT220?
thanks
Charles
