[cctalk] Re: 5,34 Petaflop System Cheyenne

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,

[cctalk] Re: What to take to a vintage computer show

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

[cctalk] Re: Drum memory on pdp11's? Wikipedia thinks so....

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

[cctalk] Re: DEC VT340/330 ROM Cartridge

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

[cctalk] DEC VT340/330 ROM Cartridge

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?

[cctalk] Re: DEC Processor Books

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.

[cctalk] Re: Keyboard Blockers?

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,

[cctalk] Keyboard Blockers?

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

[cctalk] Re: Current SOA scsi disk emulators for DEC

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

[cctalk] Current SOA scsi disk emulators for DEC

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? 

[cctalk] Re: PDP11 Dilog SQ706a SCSI Controller

On 10/18/2023 2:26 PM, hupfadekroua via cctalk wrote: I think you have to look at how the ZULU SCSI emulator is setup.  There you will be able to map the RSX image to unit #0, which would appear as DU0. It maybe that the RSX image is meant to boot from some other unit, say DU4.  Its

[cctalk] Re: Good Inventory Program for keeping track of my DEC boards, parts, computers, etc?

How many items do you need to keep track of?  Is it less than 100, a thousand? I tried using LibreOffice Calc to keep track of what I had so I wouldn't go and buy something I already had.  Alas, you know the rest of the story. In order to help organize things at the physical level, I use a

[cctalk] Re: VCF and System Source Computer Museum swap meet this weekend

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

[cctalk] Re: VCF and System Source Computer Museum swap meet this weekend

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

[cctalk] Re: Talking PDP11

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

[cctalk] Re: Talking PDP11

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

[cctalk] Re: Talking PDP11

, 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

[cctalk] Re: Talking PDP11

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.

[cctalk] Talking PDP11

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     

[cctalk] Re: 1974 No Name Terminal

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

[cctalk] Re: Need AUI cable

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?

[cctalk] DEC Prom MRV11-C and MXV11-B2 ROMS

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.

[cctalk] Re: Computer Museum uses GreaseWeazle to help exonerate Maryland Man

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

[cctalk] Re: Saturn-Calc

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

[cctalk] Re: Manual for MDB MLSI-LP11

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

[cctalk] Re: Bubble Memory

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

[cctalk] Re: Soviet PDP clones

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

[cctalk] Re: DEC H7868 Power Supplies

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

[cctalk] DEC H7868 Power Supplies

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

[cctalk] Re: Odd Unix computer Bio-Rad SRC 3200

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

[cctalk] Re: Connecting a physical terminal via LAN to Serial Port

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

[cctalk] Re: Odd Unix computer Bio-Rad SRC 3200

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

[cctalk] Odd Unix computer Bio-Rad SRC 3200

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

Re: Viking SCSI controller RS232 adapter

On 6/30/2022 4:05 PM, Glen Slick via cctalk wrote: On Thu, Jun 30, 2022, 12:34 PM Douglas Taylor via cctalk < cctalk@classiccmp.org> wrote: Update - I have 3 of these Viking controllers, 2 are rebadged to Alphatronix. 1. I was able to 'kludge' together jumpers to connect a laptop seria

Re: Viking SCSI controller RS232 adapter

Update -  I have 3 of these Viking controllers, 2 are rebadged to Alphatronix. 1. I was able to 'kludge' together jumpers to connect a laptop serial port to the controller.  Pin 20 IDC -> pin 2 DB-9, pin 22 IDC -> pin 3 DB-9 and pin 24 or 25 IDC -> pin 5 DB-9.  It didn't seem to matter if

Re: Viking SCSI controller RS232 adapter

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

Viking SCSI controller RS232 adapter

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 enough info to construct my own adapter board.  Has

Re: Repairs of an H786 power supply for a BA11-N

On 6/26/2022 8:46 PM, Chris Zach via cctalk wrote: Been working on fixing an old 11/03 system in a BA11-N chassis with an 18 bit 9273 backplane. The power supply was working at first with no issues, but when I left it on for a bit and came back it had blown the power supply fuse. Replacing

Using tu58fs with RT11 5.7

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

Re: RT11 Freeware Collection

. 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

Re: RT11 Freeware Collection

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

RT11 Freeware Collection

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

Re: idea for a universal disk interface

via cctech wrote: Interesting, what kind of ESDI controllers do you have? They got advanced features like cache, ordered seeks, and burst mode/block mode DMA? C On 4/18/2022 6:09 PM, Douglas Taylor via cctech wrote: Because of this I'm holding on to my DEC Qbus ESDI controllers!!!  You never

Re: idea for a universal disk interface

Because of this I'm holding on to my DEC Qbus ESDI controllers!!!  You never know Doug On 4/17/2022 4:35 PM, Guy Sotomayor via cctech wrote: I chose ESDI and SMD fundamentally because the interface is 100% digital (e.g. the data/clock separator is in the drive itself). So I don't need to

Re: SGI Indigo keyboard / mouse / converter wanted

Jules, I don't have a solution, only the same problem, but with a Tektronix 4200 series graphics terminal. Keyboards are rare, there is one on ebay for $700, yikes! However, I do have 2 of these terminals and one working keyboard.  Was starting to go down the path of intercepting the startup,

Re: DEC AXV11-C analog board

the “middle” as 0V reference. The “+” is V+, the “-“ is V-. Van: Douglas Taylor via cctalk<mailto:cctalk@classiccmp.org> Verzonden: zondag 13 februari 2022 18:05 Aan: Jon Elson via cctalk<mailto:cctalk@classiccmp.org> Onderwerp: Re: DEC AXV11-C analog board Is it possible to construct a ba

Re: DEC AXV11-C analog board

On 2/8/2022 7:36 PM, Jon Elson via cctalk wrote: On 2/8/22 16:35, Douglas Taylor via cctalk wrote: On 2/8/2022 5:22 PM, Jon Elson via cctalk wrote: On 2/8/22 13:34, Douglas Taylor via cctalk wrote: Update on this:  I did put together a battery and voltage divider to test the AXV11.  The label

Re: DEC AXV11-C analog board

On 2/8/2022 5:22 PM, Jon Elson via cctalk wrote: On 2/8/22 13:34, Douglas Taylor via cctalk wrote: Update on this:  I did put together a battery and voltage divider to test the AXV11.  The label on the A/D module says it brings the output from the multiplexer to one of the external pins.  I

Re: DEC AXV11-C analog board

the inputs.  Most of the analog inputs should be high impedance and while not impervious, can take +- 30v w/o damage.  Jerry On 2/6/22 11:43 AM, Douglas Taylor via cctalk wrote: Yes, I am putting 1 into the CSR to start the conversion and I do get a 200(8) indicating that the conversion

Re: DEC AXV11-C analog board

:  tilbury2591nw.john...@ieee.org On 2022-02-06 12:20, Douglas Taylor via cctalk wrote: I have one of these and would like to use it, however it appears to only partially work.  Here is what I have found that works and what doesn't: 1. CSR and DBR are present and operational. 2. Jumpers set

Re: DEC AXV11-C analog board

triggering an A/D conversion via the CSR or external signal?  Then check the A/D done bit. See  EK-AXV11-UG-02 Chapter 4.    Jerry On 2/6/22 11:20 AM, Douglas Taylor via cctalk wrote: I have one of these and would like to use it, however it appears to only partially work.  Here is what I have

Re: DEC AXV11-C analog board

, the origin of the open-source concept! Skype:  tilbury2591nw.john...@ieee.org On 2022-02-06 12:20, Douglas Taylor via cctalk wrote: I have one of these and would like to use it, however it appears to only partially work.  Here is what I have found that works and what doesn't: 1. CSR and DBR

DEC AXV11-C analog board

I have one of these and would like to use it, however it appears to only partially work.  Here is what I have found that works and what doesn't: 1. CSR and DBR are present and operational. 2. Jumpers set to 'factory'. 3. D/A portion works, can deposit codes in ODT and see voltages out on DAC

Re: Typing in lost code

I've tried to OCR old Fortran Code from DTIC pdf documents.  There were 2 big problems; 1. The copies are very poor to start with and all OCR attempts produced about 75% error rate. 2. Old Fortran code limited variable names to 6 characters so they were generally not descriptive of what they

Re: IEEE-488 on the PDP-11

On 11/17/2021 8:49 PM, Al Kossow via cctalk wrote: On 11/17/21 3:10 PM, Glen Slick via cctalk wrote: Disk images have been sent to Al. I assume he will eventually upload them to Bitsavers when he has time to do so... uploaded to

Re: IEEE-488 on the PDP-11

distribution diskette they're on, I can make you an image or copy. Thanks, Jonathan ‐‐‐ Original Message ‐‐‐ On Tuesday, November 16th, 2021 at 11:01, Douglas Taylor via cctalk wrote: In my pile of DEC computer stuff I have a DEC qbus IBV11 IEEE-488 controller board (M7954) with cable

IEEE-488 on the PDP-11

In my pile of DEC computer stuff I have a DEC qbus IBV11 IEEE-488 controller board (M7954) with cable (BN11-A) that connects to the GPIB bus. It would be interesting to try this out, but I don't have the DEC 'Instrument Bus Subroutines' that work under RT-11.  Does anyone have this package? 

Re: Terminal Emulator for Android

On 11/1/2021 3:11 PM, Liam Proven via cctalk wrote: On Sun, 31 Oct 2021 at 22:07, Bill Degnan via cctalk wrote: Juicessh ap for android has telnet. I use it for my vax boxes. Seconded. I almost never use SSH from Android, but JuiceSSH is my go-to for the once-in-a-blue-moon occasion. I'm

Terminal Emulator for Android

I would like to use my tablet, Samsung Tab E model SM-T560NU, to connect to my VAX and Linux computers.  There seem to be a large number of 'Apps' out there.  What is a good one to use? The VAX doesn't have SSH only insecure TELNET.  Another can of worms, SSH on the Vax? Doug

Re: Looking for info on memory

On 10/19/2021 12:57 PM, Nigel Johnson Ham via cctech wrote: I am trying to bring up an 11/23 system in a BA23 box, and the only memory i have is an obscure Plessey one. The only identification is the p/n 705920 with dash-100 in white ink. By counting the chips I make it 4MB, but it does not

Re: Ultrix-11 Networking

On 8/28/2021 6:19 PM, Bill Gunshannon via cctech wrote: On 8/28/21 4:13 PM, Douglas Taylor via cctalk wrote: On 8/28/2021 1:15 PM, Bill Gunshannon via cctalk wrote: On 8/28/21 1:03 PM, Douglas Taylor via cctalk wrote: Yes, I did create a new kernel and copy it to the correct place and chmod

Re: Ultrix-11 Networking

On 8/28/2021 1:15 PM, Bill Gunshannon via cctalk wrote: On 8/28/21 1:03 PM, Douglas Taylor via cctalk wrote: Yes, I did create a new kernel and copy it to the correct place and chmod 644 the new unix file. Did yo have fun playing with the overlays?  :-) I don't know what this means

Re: Ultrix-11 Networking

into a Vax without any problem. Doug On 8/28/2021 12:54 PM, Bill Gunshannon via cctalk wrote: On 8/28/21 12:43 PM, Douglas Taylor via cctalk wrote: Its been fun  working with Ultrix-11 and have had success with the help of the list.  Thanks.  The tape file from Bill Gunshannon will create a work

Ultrix-11 Networking

Its been fun  working with Ultrix-11 and have had success with the help of the list.  Thanks.  The tape file from Bill Gunshannon will create a working system.  Yay! I'm at the point of trying to network the SIMH pdp11 Ultrix-11 system. I have a few observations: 1. The youtube video

Re: Ultrix-11

On 8/25/2021 5:45 PM, Fritz Mueller via cctalk wrote: On Aug 25, 2021, at 10:16 AM, Paul Koning via cctalk wrote: I have near zero PDP-11 Unix experience, but I remember one flavor (BSD 2.11 ?) which set the top bit in its alleged ASCII output, which of course would break any terminal

Re: Ultrix-11

On 8/22/2021 8:21 AM, Bill Gunshannon via cctalk wrote: On 8/21/21 11:50 PM, Jay Jaeger via cctalk wrote: On 8/17/2021 1:39 PM, Paul Koning via cctalk wrote: I thought V7M and Ultrix were entirely diferent and unrelated things. At least on the Pro, DEC released a betal version of the one

Re: Ultrix-11

Bill; I started this thread by asking what I thought was a simple question about Ultrix-11.  Yes, I am trying to install and learn about this fascinating piece of old software. Some of the folks who have posted know much more about Unix than I do and I am learning and enjoying this. I just

Re: Ultrix-11

On 8/14/2021 1:54 PM, Warner Losh wrote: On Sat, Aug 14, 2021 at 10:19 AM Douglas Taylor via cctalk mailto:cctalk@classiccmp.org>> wrote: I ran into a YouTube video, that it is 5 years old, titled "Ultrix-11 3.1 on an emulated PDP-11/73" and I found it very interesti

Ultrix-11

I ran into a YouTube video, that it is 5 years old, titled "Ultrix-11 3.1 on an emulated PDP-11/73" and I found it very interesting. It shows installation of Ultrix-11 under SIMH.  The fellow steps through the installation process and appears to be quite knowable. I wanted to replicate it but

Re: What's left of the Houston Museum stuff

On 7/21/2021 7:19 PM, Zane Healy via cctalk wrote: On Jul 21, 2021, at 3:49 PM, Al Kossow via cctalk wrote: https://www.facebook.com/groups/2103793056560583/permalink/3118441161762429/ That’s heartbreaking,

Re: VAX4000 VLC diagnostics/console

On 7/13/2021 3:30 PM, Adrian Graham via cctalk wrote: Hi folks, I'm testing a little BlueSCSI adapter (BlueSCSI ) which while being aimed at 68K Macs should also work as an 8 bit target for older VAXen, it's a newer cheaper SCSI2SD solution and I should point out it works as

Re: VT340 Emulation

Someone already did this with a TEK4010 emulation:  See https://github.com/rricharz/Tek4010 Hmmm... You could use a Raspberry Pi to emulate a number of terminals. Doug On 6/22/2021 3:49 AM, emanuel stiebler via cctalk wrote: On 2021-06-22 01:03, Grant Taylor via cctalk wrote: I'm now

Re: VT340 Emulation

*SUCKS*!!! On the Mac, I can’t seem to use the custom DEC keybindings. Actually does DECterm support either Sixel and ReGIS? I’m dead on my feet, so won’t power up my VAXstation 4000/90 and look. Zane On Jun 21, 2021, at 8:13 PM, Douglas Taylor via cctalk wrote: Grant; Wow, that is very

Re: VT340 Emulation

question. Doug On 6/20/2021 6:06 PM, Grant Taylor via cctalk wrote: On 6/19/21 11:47 AM, Douglas Taylor via cctalk wrote: Really?  I'm interested.  How do you build your own xterm? Download and extract the source code. Here's the configure command that I most recently used before teaching

Re: VT340 Emulation

, 2021, 3:50 PM Douglas Taylor via cctech mailto:cct...@classiccmp.org>> wrote: Right, according to the few notes I've seen on the packages currently for sale on ebay. I hesitate to buy because I picked up a similar piece of software, Smarterm 240, which seemed to do the d

Re: VT340 Emulation

, Jun 18, 2021 at 1:15 PM Douglas Taylor via cctech mailto:cct...@classiccmp.org>> wrote: Does anyone have experience with the Reflection software that will emulate a DEC VT340 color graphics terminal?

VT340 Emulation

Does anyone have experience with the Reflection software that will emulate a DEC VT340 color graphics terminal?

Re: COMPAQ ISA PC to ethernent

On 5/20/2021 10:01 PM, Randy Dawson via cctech wrote: If anyone has ideas about boards or software to connect this original Compaq to the net let me know! Browsing the ebay, I do not find a PC 8 bit ethernet board but still looking. Then, the rest, a net set of tools in source would be great.

Boot Roms for MRV11-C

The boot roms for the MXV11-B multifunction board can be used in the MRV11-D general purpose ROM q-bus board.  Neat if you want to put together a small system. I have a MRV11-C board and it differs from the MRV11-D board primarily in the ROM sockets, 24 pin on the MRV11-C and 28 pin on the

Re: More interesting stuff

On 8/26/2020 7:11 PM, Bill Gunshannon via cctech wrote: Found a few other items that might be of interest to someone. Two DEC Mice VS10X-EA Rev A3 DEC Joystick Model H3060 bill Where did you see the H3060 Joystick? Doug

Scientific Micro Systems driver

All; SMS made disk controller systems that used their own device driver, seemed to be an enhanced DY (RX02) driver.  Does anyone have the driver/formatting software? The model I have is FWD 0106 and is described in bitsavers:

PDP-11 based Data Translation system on ebay

Many of you have seen this on ebay already:  item 224117176901 I'm on the east coast so it is out of my reach. It appears to be a complete Data Translation data acquisition system including the software!  Someone please rescue this! Doug

Re: DEC VR260 service docs / common failure modes?

you have compatible equipment. This was a specialized display. Bill On Mon, Aug 10, 2020 at 1:19 PM Douglas Taylor via cctalk < cctalk@classiccmp.org> wrote: Josh; I have a DEC VR150 that is nearly functional; shows full screen but the H/V are not in any sync at all. Would love

DEC Server 300

I'm interested in getting one of these, but browsing the manuals it appears there is software that is installed on the VAX to use them with VMS. Is the software required to attach terminals and login to various Vax's?  Or is it for management of the Dec Server 300? If the software is

Re: DEC VR260 service docs / common failure modes?

Josh; I have a DEC VR150 that is nearly functional; shows full screen but the H/V are not in any sync at all.  Would love to use it with a VaxStation 3100. Opened it up and found it quite a complicated monitor, not like a simple PC monochrome monitor. Purchased a microfiche manual off

Apple 1

I got a notice from ebay that an Apple 1 is up for sale: $1.5M plus $1 shipping, yikes! ebay item number: 174195921349 Doug

Re: anybody have MOVIE.BYU?

I did get Movie.BYU up on a linux machine and also an Alpha Vax, but what we really need is this reference: Christiansen, H.N. and K.B. Stephenson, "MOVIE.BYU Training Manual," Brigham Young University, Provo, Utah (1982) Anyone got it?  I'm afraid the only distribution was in the training

Re: Old FORTRAN programs, libraries, graphics

Got similar interests here.  I've been using PGPLOT on the Vax since it came out, the price was right! Tried to get it to work with a Tektronix 4207, but something is a little different between it and the 4105 series. I was able to get an old version of Gnuplot (3.4) to compile and run on a Vax

Re: Introduction and need help bringing some pdp11's back

On 10/29/2019 10:14 PM, Chris Zach via cctalk wrote: Ok, first hurdle is down. In reading the RQDX3 Controller Module Users Guide it shows that for a BA23 the 50 pin cable goes down under the Q bus chassis then loops straight up into the RQDX3. Which is impossible to do with a modern (hee

Re: Looking for schematics of QBUS 32KW memory module.

On 9/8/2019 3:22 PM, Mister PDP via cctalk wrote: Hello, A few weeks ago I ordered a Sigma 400255 for my H11A LSI-11 computer with the hopes of getting a 8" floppy hooked up for VCFMW. For the most part, all the tests I ran from the ODT seemed to be AOK. The one this I couldn't do it boot RT-11

RXV21 questions

I have 2 RXV21 RX02 controller boards.  They were bought to be used with the RX02 emulator, the one on github by AK6DN. Finally, I finished one of the emulator boards and tried it out on a PDP-11/03 and found that one of the RXV21  boards worked and the other didn't.  I assumed the one board

Re: XXDP on PDP-11/03

On 8/14/2019 10:17 AM, Noel Chiappa via cctalk wrote: > From: Paul Koning > Isn't the interrupt disabled by RESET? Nope. On the -11/03 and KDF11-A, BEVNT is wired straight into the CPU, and there's no internal register to control it. The BDV11 does have a register which can

XXDP on PDP-11/03

Recently, I assembled one of the RX02 emulator boards developed by AK6DN.  I am using it presently in a BA11-M box with PDP-11/2 cpu (really basic 16 bit system).  I put the disk images from github on the SD card (RT11 V5.07 and XXDP not sure what version). The box has a BDV11 bootstrap /

Re: Pertec Interface Cable Length

On 8/12/2019 1:25 AM, Chuck Guzis via cctech wrote: On 8/11/19 8:51 PM, Douglas Taylor via cctech wrote: The TC02 is an Emulex TS11 emulation for pertec interface tape drives. The J1 and J2 are sort of standard terminology, don't know why. Ah, the *Emulex* TC02. You had me going there--DEC

Re: Pertec Interface Cable Length

On 8/11/2019 10:44 PM, Chuck Guzis via cctech wrote: On 8/11/19 6:00 PM, Douglas Taylor via cctech wrote: I just looked at the TC02 and the Qualstar, there are termination resistor packs on each.  The Qualstar has a bunch of 74LS240 IC's near the J1 and J2 pertec interface cables.  The TC02

Re: Pertec Interface Cable Length

On 8/11/2019 7:01 PM, Jon Elson via cctech wrote: On 08/11/2019 11:11 AM, W2HX via cctech wrote: I seem to remember they were ribbon cables with each odd/even pair twisted which probably meant one active and one ground twisted together. Or differential pairs. No, both Pertec unformatted and

Re: Pertec Interface Cable Length

On 8/10/2019 1:56 PM, Jon Elson wrote: On 08/09/2019 11:05 PM, Douglas Taylor via cctech wrote: I have a question about cable length - any electrical engineers in the house? Connected a Qualstar 1260 tape drive to an Emulex TC02 qbus tape controller in a pdp-11/53.  The interface is pertec

Re: Pertec Interface Cable Length

On 8/10/2019 4:57 AM, Dave Wade wrote: -Original Message- From: cctech On Behalf Of Douglas Taylor via cctech Sent: 10 August 2019 05:06 To: General Discussion: On-Topic Posts Subject: Pertec Interface Cable Length I have a question about cable length - any electrical engineers

Pertec Interface Cable Length

I have a question about cable length - any electrical engineers in the house? Connected a Qualstar 1260 tape drive to an Emulex TC02 qbus tape controller in a pdp-11/53.  The interface is pertec with 2 50 pin cables. When I use a pair of short flat ribbon cables, 18 and 30 inches each, it

Re: MicroPDP-11/23+ cabinet kit cables

Noel; Yep, that's the one.  I never thought one would be on ebay.  Imagine searching by the part number Doug On 7/26/2019 11:23 AM, Noel Chiappa via cctalk wrote: > From: Douglas Taylor > I'm putting together a MicroPDP-11/23 in a BA23 box. Have the M8189 CPU

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