If you are concerned about hex height boards or mos, you can always use a
BA11-KE expansion box.
On Mon, Mar 27, 2017 at 6:04 PM, Ethan Dicks via cctalk <
cctalk@classiccmp.org> wrote:
> On Mon, Mar 27, 2017 at 12:20 PM, Al Kossow via cctalk
> wrote:
> > On 3/27/17 7:37 AM, Systems Glitch via cc
On 2017-03-27 6:46 PM, Ethan Dicks via cctalk wrote:
On Mon, Mar 27, 2017 at 6:35 PM, Steve Malikoff via cctalk
wrote:
After seeing this modern memory board project for the PDP-8/e using NVRAMMs
http://www.tronola.com/html/ram_for_pdp-8e.html
I have a couple of those I need to solder up.
I
On Mon, Mar 27, 2017 at 12:20 PM, Al Kossow via cctalk
wrote:
> On 3/27/17 7:37 AM, Systems Glitch via cctalk wrote:
>>> I don't know of MOS memory appearing in 11/20s as built by DEC, but there's
>>> no reason against it.
>
> There were 3rd party cards, Monolithic Systems, for example.
> The pro
Yes, the MEM11 is about 1/2 assembled at the moment (I just haven’t had the time
to finish it…you know WORK gets in the way).
TTFN - Guy
> On Mar 27, 2017, at 3:46 PM, Ethan Dicks via cctalk
> wrote:
>
> On Mon, Mar 27, 2017 at 6:35 PM, Steve Malikoff via cctalk
> wrote:
>> After seeing this
On Mon, Mar 27, 2017 at 6:35 PM, Steve Malikoff via cctalk
wrote:
> After seeing this modern memory board project for the PDP-8/e using NVRAMMs
> http://www.tronola.com/html/ram_for_pdp-8e.html
I have a couple of those I need to solder up.
> I wonder how much effort it would be to refactor the O
>> On Mar 27, 2017, at 9:15 AM, Ethan Dicks via cctalk
>> wrote:
>> Was there ever a quad MOS memory board for the 11/20? It would have
>> to be 4K or less, I'd expect, given the era and size of RAM. I know
>> by a few years later, with the 11/04, MOS was becoming common.
>
> I don't know of MO
On Mon, Mar 27, 2017 at 09:15:27AM -0400, Ethan Dicks via cctalk wrote:
> I also saved what C-sized prints I could find, and the rest
> appear to be on Bitsavers.
I was given a pile of them many years ago. If there is something missing,
let me know. My project to declutter has stalled at the mom
On 3/27/2017 3:32 AM, Philipp Hachtmann via cctalk wrote:
On 03/27/2017 08:05 AM, Paul Birkel via cctalk wrote:
http://www.vcfed.org/forum/showthread.php?56897-Came-across-three-PDP-11-20-
units-today
Haha, those low-brain comments!
User g4ugm: "have core memory... lower value"
I can offe
On 3/27/17 7:37 AM, Systems Glitch via cctalk wrote:
>> I don't know of MOS memory appearing in 11/20s as built by DEC, but there's
>> no reason against it.
There were 3rd party cards, Monolithic Systems, for example.
The problem with the 11/20 is that hex wide cards don't fit, the fans overlap
I have replied over on vcfed, but so far not sign that my activities are
going anywhere.
If someone can help in contacting, I've got the resources to collect the
system, but so far
no sign of what is going on anywhere but the original posts.
thanks
jim
On 3/27/2017 4:53 AM, Ben Sinclair via c
> I don't know of MOS memory appearing in 11/20s as built by DEC, but there's
> no reason against it. It's just Unibus memory. It wouldn't have to be 4k
> either; if you had a 32kW memory card that should work just fine.
Indeed, Unibus is Unibus, except when it's MUD :)
Thanks,
Jonathan
> On Mar 27, 2017, at 9:15 AM, Ethan Dicks via cctalk
> wrote:
>
>> ...Haha, those low-brain comments!
>>
>> User g4ugm: "have core memory... lower value"
>
> Indeed... I'm still kind of annoyed that the 11/20 I rescued from the
> dumpster at work in 1984 got mildly "souveniered" before I got
On Mon, Mar 27, 2017 at 8:59 AM, Philipp Hachtmann via cctalk
wrote:
> Hm, interesting point of view... The 11/20 is the simplest 11 as far as I
> know. No microcode that can go bad.
Yep. Simple and spread across multiple cards.
> The core memory systems are quite reliable. And if there's a pro
On Mon, Mar 27, 2017 at 5:32 AM, Philipp Hachtmann via cctalk
wrote:
> On 03/27/2017 08:05 AM, Paul Birkel via cctalk wrote:
>> http://www.vcfed.org/forum/showthread.php?56897-Came-across-three-PDP-11-20-
>> units-today
Nice find, even if they are bit rough.
> Haha, those low-brain comments!
>
>
On Mon, 27 Mar 2017, Ben Sinclair via cctalk wrote:
I'm only a half hour from Boone. But, I can barely keep my 11/23 running,
so I don't think I would be a good owner for these. I offered to help the
poster if they want, as I don't want to see these scrapped either.
Hey Ben;
Apologies for re
On 03/27/2017 12:03 PM, dave.g4...@gmail.com wrote:
On 03/27/2017 08:05 AM, Paul Birkel via cctalk wrote:
http://www.vcfed.org/forum/showthread.php?56897-Came-across-three-
PDP-
11-20-
units-today
Haha, those low-brain comments!
User g4ugm: "have core memory... lower value"
I have the
I'm only a half hour from Boone. But, I can barely keep my 11/23 running,
so I don't think I would be a good owner for these. I offered to help the
poster if they want, as I don't want to see these scrapped either.
On Mon, Mar 27, 2017 at 1:05 AM, Paul Birkel via cctalk <
cctalk@classiccmp.org> wr
>
>
>
> On 03/27/2017 08:05 AM, Paul Birkel via cctalk wrote:
> > http://www.vcfed.org/forum/showthread.php?56897-Came-across-three-
> PDP-
> > 11-20-
> > units-today
>
> Haha, those low-brain comments!
>
> User g4ugm: "have core memory... lower value"
>
I have the impression that 11's with
On 03/27/2017 08:05 AM, Paul Birkel via cctalk wrote:
http://www.vcfed.org/forum/showthread.php?56897-Came-across-three-PDP-11-20-
units-today
Haha, those low-brain comments!
User g4ugm: "have core memory... lower value"
I can offer high performance pdp11 QBus gear for core memory based
ma
On Mon, Mar 27, 2017 at 02:05:56AM -0400, Paul Birkel via cctalk wrote:
> Need some lovin'. Not near enough to here .
I would go to Iowa. Hell, it's not *that* far from Texas.
(OTOH I could only take one of them.)
Guess I'll have to sign up in the a.m. so I can see the pictures.
mcl
On 3/26/2017 11:50 PM, Paul Anderson via cctalk wrote:
I'm close and interested, but it won't let me reply
If you have a vcfed account private message the original poster. I also
replied have close in as well, and am very interested.
I replied on the thread, but it is moderated for memb
I'm close and interested, but it won't let me reply
On Mon, Mar 27, 2017 at 1:05 AM, Paul Birkel via cctalk <
cctalk@classiccmp.org> wrote:
> http://www.vcfed.org/forum/showthread.php?56897-Came-
> across-three-PDP-11-20-
> units-today
>
>
>
> Need some lovin'. Not near enough to here .
>
>
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