27 Dec
2020
27 Dec
'20
2:07 p.m.
Chris,
I could use one. I have an h-11 system that has issues with the h-27 system.
Please contact me off list.
Gary
Gary at realtimecomp.com
-------- Original message --------
From: Chris Zach via cctalk <cctalk at classiccmp.org>
Date: 12/27/20 4:42 PM (GMT-05:00)
To: CCTalk mailing list <cctalk at classiccmp.org>
Subject: Does anyone have an H11 and need a H27 card?
I have one, and if someone needs to to complete their collection I'd
rather it goes there. If you just want to put it on Ebay pls don't
bother as I can do that but if you really need one let me know.
CZ
27 Dec
27 Dec
2:12 p.m.
Hi Gary!
Shoot, Eric (somecomputerguy) PMed me first, as he is also having
trouble with his H27.
However I'm sending it under the "Yours for shipping costs but if you
get your system working you have to pass it on to another worthy soul."
license. So you should get one from him once he's up and running. And
you'll have to send it to someone else once you get yours up and running.
These things travel forever like this. It is the way....
CZ
On 12/27/2020 5:07 PM, Gary L. Messick wrote:
Chris,
I could use one.? I have an h-11 system that has issues with the h-27
system.
Please contact me off list.
Gary
Gary at realtimecomp.com
3:43 p.m.
New subject: Does anyone have an H11 and need a H27 card? -spam
On 12/28/20 6:37 PM, ben via cctalk wrote:
On 12/28/2020 4:23 PM, Kevin Lee via cctalk wrote:
All joking aside, I sure wish I had a complete H-11. I have
PDP-11's but the H-11 was unique.
You know, it would be even cooler sitting next to an H-8.
Too bad so few seem to have survived.
bill
Remember.
Wherever you go......
There you are .......
What about the Invisible Man?
Ben.
4:04 p.m.
New subject: Does anyone have an H11 and need a H27 card? -spam
All joking aside, I sure wish I had a complete H-11.?
I have
PDP-11's but the H-11 was unique.
They're around. I had one when I was little and it was ok but kind of
clunky. The box was odd, it only had 16 (maybe 18?) bits wired on the
backplane and the power supply was a linear rock if I remember right.
Still, it ran Rt11 pretty well. But an 11/23+ would give you the VM: ram
disk driver that allowed you to just copy the whole OS to memory, boot,
and run fast!.
C
5:14 p.m.
New subject: Does anyone have an H11 and need a H27 card? -spam
On 12/28/20 7:04 PM, Chris Zach via cctalk wrote:
I imagine 16 bits. It probably had an 11/02 processor just like
the TERAK. 18 and 22 came later.
All joking
aside, I sure wish I had a complete H-11.? I have
PDP-11's but the H-11 was unique.
They're around. I had one when I was little and it was ok but kind of
clunky. The box was odd, it only had 16 (maybe 18?) bits wired on the
backplane and the power supply was a linear rock if I remember right.
Still, it ran Rt11 pretty well. But an 11/23+ would give you the VM: ram
disk driver that allowed you to just copy the whole OS to memory, boot,
and run fast!.
I know it ran HT-11 which was supposed to be a custom RT-11. Would it
run regular RT-11? Was the H-27 fully RX01 compatible?
bill
7:41 p.m.
New subject: Does anyone have an H11 and need a H27 card? -spam
I imagine 16 bits.? It probably had an 11/02 processor
just like
the TERAK.? 18 and 22 came later.
I think it was: I dimly remember I could not get an 11/23 cpu to work in
it with a pair of 32kw memory boards. But the 11/03 cpu worked fine, as
did my quad width 11/03 CPU with the 4k of onboard memory and the WCS11
board underneath it.
I should fix that board. It was weird but cute.
I know it ran HT-11 which was supposed to be a custom
RT-11.? Would it
run regular RT-11?? Was the H-27 fully RX01 compatible?
It could, but I think I used an RXV11 for the floppy drive. The serial
port and the memory were perfectly normal devices, albeit hand-made.
I think the floppy controller was different. Someone else can try it.
C
4:07 p.m.
New subject: Does anyone have an H11 and need a H27 card? -spam
On 12/28/2020 4:43 PM, Bill Gunshannon via cctalk wrote:
On 12/28/20 6:37 PM, ben via cctalk wrote:
I suspect it was more the case of too few were purchased. The high price
of the H-11 must have been a factor. Was the H-11 cpu crippled for Heath
Kit? I wished for one at the time, but was there any application software?
Ben.
On 12/28/2020 4:23 PM, Kevin Lee via cctalk
wrote:
All joking aside, I sure wish I had a complete H-11.? I have
PDP-11's but the H-11 was unique.
You know, it would be even cooler sitting next to an H-8.
Too bad so few seem to have survived.
bill
Remember.
Wherever you go......
There you are .......
What about the Invisible Man?
Ben.
5:18 p.m.
New subject: Does anyone have an H11 and need a H27 card? -spam
On 12/28/20 7:07 PM, ben via cctalk wrote:
On 12/28/2020 4:43 PM, Bill Gunshannon via cctalk
wrote:
As far as I knew it was a real DEC CPU Module. I expect any application
that ran on RT-11 on the LSI-11/02 would have run on the H-11 but then,
you couldn't just walk into your local computer hobby shop and by RT-11
software. :-)
bill
On 12/28/20 6:37 PM, ben via cctalk wrote:
I suspect it was more the case of too few were purchased. The high price
of the H-11 must have been a factor. Was the H-11 cpu crippled for Heath
Kit? I wished for one at the time, but was there any application software?
Ben. On 12/28/2020 4:23 PM, Kevin Lee via cctalk
wrote:
All joking aside, I sure wish I had a complete H-11.? I have
PDP-11's but the H-11 was unique.
You know, it would be even cooler sitting next to an H-8.
Too bad so few seem to have survived.
bill
Remember.
Wherever you go......
There you are .......
What about the Invisible Man?
Ben.
5:52 p.m.
New subject: Does anyone have an H11 and need a H27 card? -spam
I have an H11 but not an H27 controller. The story I remember reading is that it ran a
modified and incompatible RT11 because DEC didn?t want to cannibalize sales on the
inexpensive PDP-11?s. I have a write up about this on my web site.
I can say that it does indeed run real RT11 if loaded with a TU58 emulator or if using
SCSI (like with an Emulex card and SCSI2SD). A second SLU is needed for the TU58 of
course. I ran a DLV11J on mine.
Rich
http://www.classiccmp.org/cini
Long Island S100 User?s Group
Get Outlook<https://aka.ms/qtex0l> for iOS
________________________________
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Bill Gunshannon via
cctalk <cctalk at classiccmp.org>
Sent: Monday, December 28, 2020 8:18:04 PM
To: cctalk at classiccmp.org <cctalk at classiccmp.org>
Subject: Re: Does anyone have an H11 and need a H27 card? -spam
On 12/28/20 7:07 PM, ben via cctalk wrote:
On 12/28/2020 4:43 PM, Bill Gunshannon via cctalk
wrote:
As far as I knew it was a real DEC CPU Module. I expect any application
that ran on RT-11 on the LSI-11/02 would have run on the H-11 but then,
you couldn't just walk into your local computer hobby shop and by RT-11
software. :-)
bill
On 12/28/20 6:37 PM, ben via cctalk wrote:
I suspect it was more the case of too few were purchased. The high price
of the H-11 must have been a factor. Was the H-11 cpu crippled for Heath
Kit? I wished for one at the time, but was there any application software?
Ben. On 12/28/2020 4:23 PM, Kevin Lee via cctalk
wrote:
All joking aside, I sure wish I had a complete H-11. I have
PDP-11's but the H-11 was unique.
You know, it would be even cooler sitting next to an H-8.
Too bad so few seem to have survived.
bill
Remember.
Wherever you go......
There you are .......
What about the Invisible Man?
Ben.
7:20 p.m.
New subject: Does anyone have an H11 and need a H27 card? -spam
On 12/28/2020 07:18 PM, Bill Gunshannon via cctalk wrote:
As far as I knew it was a real DEC CPU Module. I expect
any application
that ran on RT-11 on the LSI-11/02 would have run on the
H-11 but then,
you couldn't just walk into your local computer hobby shop
and by RT-11
software. :-)
Yes, it was a totally stock DEC LSI-11 CPU, but most of them
didn't have any other
Dec components except the backplane. All the memory, serial
and printer interface cards
were made by Heath.
Jon
29 Dec
29 Dec
6:30 a.m.
New subject: Does anyone have an H11 and need a H27 card? -spam
On 12/28/20 10:20 PM, Jon Elson wrote:
On 12/28/2020 07:18 PM, Bill Gunshannon via cctalk
wrote:
Was it a DEC backplane? Any idea which one?
bill
As far as I knew it was a real DEC CPU Module.? I expect any application
that ran on RT-11 on the LSI-11/02 would have run on the H-11 but then,
you couldn't just walk into your local computer hobby shop and by RT-11
software.? :-)
Yes, it was a totally stock DEC LSI-11 CPU, but most of them
didn't have
any other
Dec components except the backplane.? All the memory, serial and printer
interface cards
were made by Heath.
6:49 a.m.
New subject: Does anyone have an H11 and need a H27 card? -spam
Backplane connectors were soldered to a custom PCB. It wasn?t a stock DEC backplane.
Boards have to be installed ?serpentine? I believe.
I have an H11 in the attic. Don?t use it much any more now that I have an 11/23+ in the
shop.
http://www.classiccmp.org/cini
Long Island S100 User?s Group
Get Outlook<https://aka.ms/qtex0l> for iOS
________________________________
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Bill Gunshannon via
cctalk <cctalk at classiccmp.org>
Sent: Tuesday, December 29, 2020 9:30:29 AM
To: Jon Elson <elson at pico-systems.com>; On-Topic and Off-Topic Posts <cctalk
at classiccmp.org>
Subject: Re: Does anyone have an H11 and need a H27 card? -spam
On 12/28/20 10:20 PM, Jon Elson wrote:
On 12/28/2020 07:18 PM, Bill Gunshannon via cctalk
wrote:
Was it a DEC backplane? Any idea which one?
bill
As far as I knew it was a real DEC CPU Module. I expect any application
that ran on RT-11 on the LSI-11/02 would have run on the H-11 but then,
you couldn't just walk into your local computer hobby shop and by RT-11
software. :-)
Yes, it was a totally stock DEC LSI-11 CPU, but most of them
didn't have
any other
Dec components except the backplane. All the memory, serial and printer
interface cards
were made by Heath.
1224
days inactive
1226
days old
14 comments
8 participants
participants (8)
-
bfranchuk＠jetnet.ab.ca -
bill.gunshannon＠hotmail.com -
cz＠alembic.crystel.com -
elson＠pico-systems.com -
Gary＠realtimecomp.com -
jim.manley＠gmail.com -
kl＠2k.ca -
rich.cini＠verizon.net