On 6/28/2022 12:58 PM, Douglas Taylor via cctalk wrote:
I have a couple of these boards but have never got into the on-board
monitor which requires an adapter board that allows a terminal to talk
to the controller board and do various things.
Looking at the manual on bitsavers there is almost
.
Doug
On 4/29/2022 4:11 PM, Kenneth Gober wrote:
On Wed, Apr 27, 2022 at 10:55 AM Douglas Taylor via cctech
wrote:
I wanted to extract some parts of the RT11 Freeware iso file that is
available on the internet. The note Tom Shoppa wrote indicates
that the
CD has 2 partitions. When
Here is the link I used:
http://www.bitsavers.org/bits/DEC/pdp11/trailing-edge_cd/rt11freewarev2.iso.gz
Doug
On 4/28/2022 5:35 PM, s shumaker via cctalk wrote:
Can you post the download link for the ISO?
Steve
On 4/27/2022 7:46 AM, Douglas Taylor via cctalk wrote:
All;
I wanted to extract
I wanted to try using tu58fs with a RT11 system running version 5.7 to
transfer files in/out.
To my surprise RT11 5.7 retired the DD: device, a DD.MAC file is there,
but it is unsupported.
(1) How do you compile a device driver file? How do you link and
install it?
(2) Has anyone done
All;
I wanted to extract some parts of the RT11 Freeware iso file that is
available on the internet. The note Tom Shoppa wrote indicates that the
CD has 2 partitions. When I burned the CD on a windows machine I only
see one partition.
How to I extract the 2nd partition off the iso?
Doug
I have a Bio-Rad SRC 3200, which is a workstation that operated a
Bio-Rad FTS-40 FTIR spectrometer.
A few years ago I got it to power on and it runs Unix variant, their
product name was Idris. I have 16 floppies (dated 1992) that came with
the system, but the hard disk has died.
It is
On 7/30/2022 8:01 PM, Jonathan Chapman via cctalk wrote:
Doug,
A few years ago I got it to power on and it runs Unix variant, their
product name was Idris. I have 16 floppies (dated 1992) that came with
the system, but the hard disk has died.
Interesting! I have a Multibus system that runs
While cleaning up I found a box with 3 H7868 power supplies. Once upon a
time I had a BA213 and BA215 Vax.
One of them has a cable coming out the top of it and probably went to
the BA213 box which had only one power supply.
The other two are plain and likely are from a BA215 box.
I assume
On 8/29/2022 5:11 PM, Antonio Carlini via cctalk wrote:
On 29/08/2022 21:40, Douglas Taylor via cctalk wrote:
While cleaning up I found a box with 3 H7868 power supplies. Once
upon a time I had a BA213 and BA215 Vax.
One of them has a cable coming out the top of it and probably went
On 10/19/2022 5:49 PM, Anders Nelson via cctalk wrote:
On eBay, 10pcs for $75: https://www.ebay.com/itm/394216367144
=]
--
Anders Nelson
This reminded me that I have a qbus Bubble Tek (or something) board in
my collection. It emulates an RX01 device, however it uses the Intel
7110 bubble
On 10/17/2022 2:57 PM, Bill Gunshannon via cctalk wrote:
On 10/17/22 14:47, Joshua Rice via cctalk wrote:
Hi all,
After some discussion on reddit about russian PDP-11 clones, i made
the (perhaps erronous) claim that the PDP series in general was
cloned by the Soviets.
I’m aware that there
On 7/30/2022 10:04 PM, Douglas Taylor via cctalk wrote:
On 7/30/2022 8:01 PM, Jonathan Chapman via cctalk wrote:
Doug,
A few years ago I got it to power on and it runs Unix variant, their
product name was Idris. I have 16 floppies (dated 1992) that came with
the system, but the hard disk has
On 7/31/2022 1:23 AM, Ali via cctalk wrote:
I am looking for some advice and recommendations on how to best go about
accomplishing the following:
I have recently come into possession of an actual physical terminal that can
be connected to a device via a standard RS232 (serial) port, so far so
On 12/30/2022 7:23 AM, Nigel Johnson Ham via cctalk wrote:
Hi all,
My 11/73 restoration has got to the point that I am loading stuff from
RT11 backups, and I have a lot of Saturn-calc and wp data that I would
like to see again. My licensed copy and the manual are long gone!
I downloaded
On 12/29/2022 9:33 AM, Nigel Johnson Ham via cctalk wrote:
My re-build of a BA23 11/73 system continues. I have one of these MDB
printer controllers but cannot make it do anything more that home page
on the laser using RT-11
Does anybody have a manual or know where I can download one.
An
This would make a great talk at one of the Vintage Computer Festivals.
At VCF East I see many parents bringing children (teenagers especially)
that would get an important lesson from this showing how adults from
vastly different walks of life interact and produce positive results.
Museum
Is it possible to use the MXV11-B2 Roms in an 18 bit MRV11-C Prom
board? Clearly they work in the 22 bit version, MRV11-D, but I don't
have one of those.
The intention is to put together a small PDP-11 in an H9281-AB backplane
(18 bit) with an 11/23 or 11/73 CPU, Ram, disk controller, etc.
The DACs on the AAV11-C board are not marked in any revealing way. I
think they are Burr Brown DAC80, 24 pin, but I'm not sure. I wasn't
sure if they were working and was looking for a replacement.
Looking at the spec sheets DAC's seem to come in Voltage or Current
versions. Life got more
Johnson via cctalk wrote:
You might try looking for Data Translation products. I know some of the later
ad and da modules were made by them for DEC
On July 11, 2023 12:28:43 p.m. EDT, Douglas Taylor via cctalk
wrote:
The DACs on the AAV11-C board are not marked in any revealing way. I think
I have a PDP-11/53 and have just started playing with an AAV11-C D/A
board. It is a 4 channel D/A convertor with 12 bit resolution.
Can it be used to play an audio bit stream?
Here is simple code used to see if the thing was actually working:
.title AAV11 D/A test
;
.asect
Martin
-Original Message-
From: Douglas Taylor via cctalk [mailto:cctalk@classiccmp.org]
Sent: 09 July 2023 19:46
To: General Discussion: On-Topic and Off-Topic Posts
Cc: Douglas Taylor
Subject: [cctalk] Talking PDP11
I have a PDP-11/53 and have just started playing with an AAV11-C D/A board.
I plan on being there, for me it is a lot closer that the Swap Meet in
Wall NJ on the same day.
Doug
On 7/18/2023 7:56 PM, Mark G Thomas via cctalk wrote:
Hi,
I am curious if anyone here might be planning on attending.
https://museum.syssrc.com/artifact/events/3000/
The Vintage Computer
On 7/19/2023 12:33 PM, Bill Gunshannon via cctalk wrote:
On 7/19/2023 11:23 AM, Ethan O'Toole via cctalk wrote:
Hi,
I am curious if anyone here might be planning on attending.
https://museum.syssrc.com/artifact/events/3000/
I am heading up there with friends Friday night so we can get there
At first glance it reminded me of the Hazeltine 1000, I owned one in the
early 1980's. Brutally simple terminals, I remember getting a ROM from
Jameco which allowed the terminal to display lowercase letters. Pure
luxury.
Doug
On 7/4/2023 6:57 PM, Brad H via cctalk wrote:
Hi there - not
, 2023, at 9:19 PM, Douglas Taylor via cctalk
wrote:
Wow! Actual engineers responding...
It looks like I could only do the most rudimentary audio.
1. Sample Rate: You got maybe 20K samples to store in lower memory. At 7KHz
sample rate that would allow 3 seconds of audio. Voice only.
2. Samples
I have a real DEC AUI cable and live in MD. I think it is 10 feet long.
Doug
On 6/27/2023 9:16 PM, Chris Zach via cctalk wrote:
Anyone in MD got an AUI cable (few feet long) I can steal so I don't
have to remove the bolts from the Pro/380's Ethernet socket or the
pins on my 10bt ethernet MAU?
That is my question.
I have used a couple of versions of the SCSI2SD boards in the past with
Viking, Emulex QC07, DEC RQXZ1 controllers in the past, and also direct
connections to MicroVax SCSI buss's.
There are other manufacturers of these SD to SCSI emulators now. What is
the current SOA?
On 12/3/2023 2:19 PM, John H. Reinhardt via cctalk wrote:
On 12/3/2023 10:27 AM, Douglas Taylor via cctalk wrote:
That is my question.
I have used a couple of versions of the SCSI2SD boards in the past
with Viking, Emulex QC07, DEC RQXZ1 controllers in the past, and also
direct connections
I took a second look and here are the keys that were 'locked':
Set Up
Break
Del
Line INS Char
Line DEL Char
Scrn CLR Line
INS Repl
Escape
Home
All the Arrow keys, up, down, right, left
It's a standard ASCII Wyse Keyboard
Doug
On 3/10/2024 6:10 PM, Dennis Boone via cctalk wrote:
> I thought,
I picked up a keyboard for a Wyse terminal at a flea market the other
day. When I tried some of the keys, they couldn't be depressed.
I thought, at first, some dirt or debris had gotten stuck there, but on
closer look I saw something black below the keys that seemed to be
stuck. I pulled a
That matches what a DEC FE told me, at least about the VAX version: the
people were just DEC employees that caught somebody's eye when they were
planning the shots. Don't think they got extra modeling fees..
I wouldn't expect modeling fees, given the wording of the standard employee
agreement.
The DEC VT340 has a slot in the back of the terminal to insert a ROM
cartridge. I can't find any description of what this DEC labeled ROM
cartridge would do for you. I've seen them with V1.1 and V2.1 markings,
does anyone remember what additional capabilities these ROM cartridge
provide?
On 4/6/2024 11:14 AM, Tony Duell via cctalk wrote:
On Sat, Apr 6, 2024 at 3:54 PM Douglas Taylor via cctalk
wrote:
The DEC VT340 has a slot in the back of the terminal to insert a ROM
cartridge. I can't find any description of what this DEC labeled ROM
cartridge would do for you. I've seen
At the VFC East just a few days ago a young man came up to me, I had a
PDP11/53 on display, and showed me pictures of his 11/45 and PDP-8 that
he had just acquired and needed to learn about. It was impressive, he
said the 11/45 was missing the memory boards. If he shows up here on
the list
I learned at VCF East this year that I should have brought an UPS to
make sure that my vintage equipment had good, clean AC power. My PDP11
kept on resetting during the show.
Doug
On 5/1/2024 9:53 PM, Brad H via cctalk wrote:
Just reaching out to anyone who has exhibited at a vintage
In the 1980's I attended a US Gov't auction for a Vax 780. It was being
exported to South Africa and the State Dept stopped the transfer because
it was ultimately going to a banned country. Don't know which one, but
I do remember the system was configured for 50Hz power. 50Hz power,
disks,
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