Re: Tektronix Terminal Emulation

<cctalk-boun...@classiccmp.org> on behalf of Douglas Taylor via cctalk <cctalk@classiccmp.org> *Sent:* Thursday, March 9, 2017 7:00 PM *To:* General Discussion: On-Topic and Off-Topic Posts *Subject:* Tektronix Terminal Emulation I'm trying to return to the computing days of yes

Re: Tektronix Terminal Emulation

On 3/11/2017 12:08 PM, Torfinn Ingolfsen via cctalk wrote: On Sat, Mar 11, 2017 at 5:14 PM, Douglas Taylor via cctalk <cctalk@classiccmp.org> wrote: I like using the laptop as a console because I can log my terminal session while I'm installing software, etc. Kermit on debian linux

Re: Tektronix Terminal Emulation

On 3/10/2017 10:31 PM, Chris Elmquist via cctalk wrote: On March 9, 2017 9:00:43 PM CST, Douglas Taylor via cctalk <cctalk@classiccmp.org> wrote: I'm trying to return to the computing days of yesteryear when people hooked graphics terminals to VAXes. I don't have a Tektronix graphics te

Re: Tektronix Terminal Emulation

On 3/11/2017 4:11 PM, Peter Coghlan via cctalk wrote: I can't run DecWindows on a MicroVax II with 11MB of memory, so I loaded the basic support files for DecWindows. Are you sure? I can run the old XUI DecWindows on VMS 5.5-2 (the newest VMS that will support XUI) in monochrome on a

Tektronix Terminal Emulation

I'm trying to return to the computing days of yesteryear when people hooked graphics terminals to VAXes. I don't have a Tektronix graphics terminal but I do have a MicroVax II and a laptop running Debian Linux. Up to now I've been using the laptop as a console device and connecting to the

Re: VT50 print set

On 8/11/2017 3:13 AM, Mattis Lind via cctech wrote: I found a VT50 print set in the heaps and recognized there were no copy on bitsavers so I ran it through a scanner. https://dl.dropboxusercontent.com/u/96935524/Datormusuem/VT50/VT50-print-set.pdf Compared to the VT52 print set that is online

PDP11 and Simh Floating point

How does SIMH perform floating point operations for the PDP-11 simulation? If I run a numerical computation on real PDP-11 hardware and also on Simh how do you talk about the comparison? Doug

Re: PDP11 and Simh Floating point

On 7/18/2017 11:38 AM, Paul Koning via cctalk wrote: On Jul 18, 2017, at 11:04 AM, Douglas Taylor via cctalk <cctalk@classiccmp.org> wrote: How does SIMH perform floating point operations for the PDP-11 simulation? If I run a numerical computation on real PDP-11 hardware and also on Si

Re: VT320 Isn't working right

On 7/23/2017 8:29 PM, Toby Thain via cctalk wrote: On 2017-07-23 7:27 PM, Douglas Taylor via cctalk wrote: All I have a DEC VT320 that powers up just fine, sees the attached keyboard, and I can enter the setup menu. However, when I attach it to my microPDP11 to use as a console nothing

VT320 Isn't working right

All I have a DEC VT320 that powers up just fine, sees the attached keyboard, and I can enter the setup menu. However, when I attach it to my microPDP11 to use as a console nothing appears on the screen during power up (there is a boot rom dialog that is supposed to appear). When I press a

DecWindows on remote display

All I decided to try this with a MicroVax 4000/400 and my Windows 7 desktop PC. (Rather than fix things around the house) Much to my surprise the CPU load was 85%, with just a single DECTERM window up. Is this usual or normal? Typing in commands via the DECTERM window was tediously slow.

Re: PDP 8e green / lab version rack Ebay

On 8/17/2017 4:43 PM, william degnan via cctalk wrote: http://www.ebay.com/itm/Digital-Equipment-Corporation-DEC-PDP-lab8-e-Vintage-1970s-computer/15297190 I hope someone my most-often-traversed groups (CCTech or VCFed) gets this! Bill You have to love the listing - it says it would

Re: SMS 8" Floppy Drive

On 5/9/2017 3:05 PM, shad via cctech wrote: Hello, I have a clone PDP11, including an SMS QBUS board and a 8" drive. Not sure if it's the same model as yours. The controller runs MSCP for floppy with RX02 or IBM format , and for an MFM hard disk like Seagate ST251. Board code is SMS FWD0106.

SMS 8" Floppy Drive

All this talk about 8 inch floppies got me to look at a unit I have stored away. It is a rack mounted dual 8 inch floppy drive, SMS FWT Series. Model - FWT0522I-R It has one IDC connection on the back, 34 pin. The formatter in the unit has numbers - 1001828-0001 H and 0003451-0001 J

Re: On Topic?: Hamvention

On 5/16/2017 10:00 PM, Jerry Weiss via cctalk wrote: On May 16, 2017, at 7:11 PM, Ben Sinclair via cctalk wrote: On Tue, May 16, 2017 at 6:14 PM, Jim Brain via cctalk

Thin Client as Graphics Terminal

The other day I bought an HP thin client (HP T5530) and had planned to use it for my prom programmer.  The thin client has a parallel port and will boot to dos so I thought that would be perfect. When I reloaded the HP OS software into flash memory and booted the client up I noticed there was

Re: DEC Alpha 3000 and OpenVMS 8.4

On 10/13/2017 12:57 AM, Rod Smallwood wrote: I also have a similar system. VMS should have loads of room in 1Gb. My problem is its god awful slow running DEC windows. I'm on vacation now but back on 17th There was a system disk that came with the Alpha with VMS 7.3 and had 800,000 free

Re: DEC Alpha 3000 and OpenVMS 8.4

I was curious about the RZ29 since they seem to be very inexpensive.  I'm trying to decide whether to 're-purpose' a SCSI2SD adapter I'm already using.  I hate to undo something once its already done and working, but SD cards are so cheap. On 10/13/2017 3:15 AM, Peter Coghlan via cctech

Re: DEC Alpha 3000 and OpenVMS 8.4

On 10/13/2017 6:36 AM, Camiel Vanderhoeven via cctalk wrote: On 10/13/17, 6:50 AM, "cctalk on behalf of Zane Healy via cctalk" wrote: The system can actually run stock 8.4? I believe that at least the latest 8.4 release from

DEC Alpha 3000 and OpenVMS 8.4

I'm trying to bring up an Alpha machine, a 3000-300, the hardware is working fine, but I have some questions- The system disk is an RZ26 (1.06GB) and I installed the OS and one layered product and the disk is full.  How much disk space is needed for 8.4? There is a power regulator next to

Re: DEC ll/03 in 22 bit backplane

On 8/30/2017 12:10 AM, Ethan Dicks wrote: On Tue, Aug 29, 2017 at 10:52 PM, Douglas Taylor via cctalk <cctalk@classiccmp.org> wrote: I have a BA11-M box with a backplane that I am sure has been upgraded to be 22 bit addressing. If you send me a picture of the backplane part of the box (w

Re: DEC ll/03 in 22 bit backplane

On 8/29/2017 11:43 PM, Jerry Weiss via cctalk wrote: On Aug 29, 2017, at 9:52 PM, Douglas Taylor via cctalk <cctalk@classiccmp.org> wrote: I have a BA11-M box with a backplane that I am sure has been upgraded to be 22 bit addressing. When I got this box it had an 11/23 Dual width Cpu,

Re: DEC ll/03 in 22 bit backplane

On 8/30/2017 5:53 AM, Pete Turnbull via cctech wrote: On 30/08/2017 05:29, Douglas Taylor via cctalk wrote: I'll send along a picture of the rear of the back plane.  I'm getting  the impression I can't do what I want with the old cpu cards, M7270 and M7264. I had really hoped to be able to put

Re: Convex C220 lives

On 9/11/2017 2:15 PM, Chuck Guzis via cctech wrote: On 09/11/2017 08:47 AM, Camiel Vanderhoeven via cctalk wrote: Now I¹m looking for some FORTRAN code that would typically have run on this kind of computer so I can show people what this kind of system was used for. Congratulations! I'd

RX02 Emulator

In my other post I asked about DEC 11/2 and 11/03 cpus and 18/22 bit backplanes.  I am still interested in this but I am considering what type of disk to run from. I ran into a rx02_emulator on github and looks quite interesting, since it uses an actual DEC RXV21 interface it would be

Emulated DEC Drives: UC07 and SCSI2SD

I am bringing up a MicroVax III in a BA23 box and I intend to run it from an SD card attached to a SCSI2SD adapter. The SD card was setup to have the size of RA90 and RA82 drives using the scsi2sd-util program on a Win7 computer to  partition the 4GB SD card . When I attached it to an Emulex

DEC ll/03 in 22 bit backplane

I have a BA11-M box with a backplane that I am sure has been upgraded to be 22 bit addressing. When I got this box it had an 11/23 Dual width Cpu, MXV11-AC with custom boot ROMs and a 256KB MSV11-P memory board.  The memory in the MXV11 had been disabled so I suspect the backplane was

Extra chips in PDP11/23 plus cpu board

There is a CPU board for sale on ebay, M8189, and it has the usual 3 chips CPU, MMU, FPU.  However, there are 2 extra chips and I've never seen that before. Anyone know what this is? Ebay item 122867114663  - Vintage Mint Digital DEC M8189 CPU Module Board KDF11-B Doug

Sync on Green RGB video

I have a couple of vaxes that output 'unique' video, Alpha 3000 300, Alpha 3000 400, Vax 4000 VLC, and Vax Station 3100 M76. The Alpha and VLC each have a 3W3 type of connector and the 3100 has a 15 pin DEC designed connector. What does it take to connect these to inexpensive, modern VGA

Re: Sync on Green RGB video

On 11/18/2017 6:44 PM, william degnan wrote: On Nov 18, 2017 4:09 PM, "Douglas Taylor via cctech" > wrote: > > I have a couple of vaxes that output 'unique' video, Alpha 3000 300, Alpha 3000 400, Vax 4000 VLC, and Vax Station 3100 M76. >

DEC Keyboards with sticky keys

I have a couple of LK401 keyboards and they generate a 'keyboard error - 4' error on power up test when attached to a VT420.  The problem seems to be one or more keys that are 'stuck on'. When the keyboard is turned upside down and shaken I can get the self test to pass. Is it possible to

Re: DEC Mouse replacement

an via cctalk Sent: Friday, May 4, 2018 3:06 AM To: Douglas Taylor <dj.tayl...@comcast.net>; General Discussion: On-Topic and Off-Topic Posts <cctalk@classiccmp.org> Subject: Re: DEC Mouse replacement On Thu, May 3, 2018, 9:38 PM Douglas Taylor via cctalk < cctalk@classiccmp.org>

DEC Mouse replacement

I would like to have a couple more DEC Mice for some Vaxestations I have, but they seem to be pretty rare.  At present I only have one mouse and I move it from machine to machine. The protocols for the DEC mice and the standard PS/2 mice don't seem to be that much different. Is it possible

RT11 Disk Partitioning and RQZX1 SCSI controller

Is there a potential problem here? I have an 11/53 microPDP11 with a RQZX1 controller connected to a single DEC DSP3043 drive (535MB) and a single RX33 floppy. The autoconfigure setup in the RQZX1 puts the hard disk at DU0 and the Floppy as DU1.  OK.  I boot RT11 from the disk, V5.7. Works

Re: RT11 Disk Partitioning and RQZX1 SCSI controller

On 10/20/2017 6:46 AM, Camiel Vanderhoeven via cctalk wrote: On 10/19/17, 6:22 PM, "cctalk on behalf of Douglas Taylor via cctalk" <cctalk-boun...@classiccmp.org on behalf of cctalk@classiccmp.org> wrote: Is there a potential problem here? I have an 11/53 microPDP11 with a

Re: Microvax II 'primer'?

I can't believe you 'just carry it into the house' all by yourself, unless you are professional athlete. I also have a MicroVax II in the BA123 world box and it has wheels for a reason!  The damn thing weighs 130 lbs! I took it to the VCF East last year, never do that again.  Too heavy. When I

Re: VMS 8.4 Alpha Hobbyist disk images

In my excitement about getting a new machine to play with I forgot what I had done previously with these iso images.  That is, I used linux to dd them onto SD cards attached to SCSI2SD drive emulators. Geez, a few months go by and I forget everything. BTW, I looked at imgburn.  When I

DEC Storageworks

The alphaserver 1000a I have has a storageworks array. The disk carriers are green in color, I see storageworks disks for sale on ebay that are blue.  What is the difference? Are they interchangeable? Is it possible (or even wise) to open one of the green carriers and change the disk out?

Re: DEC Storageworks

Ben; Jbod.  Didn't know what it meant until today.  The computer has 4 SCSI controllers, the Storageworks is operated in a split configuration.  4 drives are on a RAID controller, the other 3 are on a normal SCSI controller. What I was getting at with replacing the disks in the carrier was

Re: VMS 8.4 Alpha Hobbyist disk images

On 2/1/2018 12:55 PM, Douglas Taylor via cctech wrote: I'm getting an Alphaserver 1000a and wanted to install VMS 8.4 - hobbyist license from CD. So, I went to the folder on my PC where I have the 8.4 hobbyist distribution.  There are 3 ISO files; ALPHA084, ALPHA084LP1 and ALPHA084LP2. I

Re: VMS 8.4 Alpha Hobbyist disk images

Thanks for helping me understand what this is. My experience has been with Q-bus based Vaxes and this is very different in that SCSI controllers for Q-bus are rare while in this Alpha machine I've got too many! You were right about the MIN boot, I went into SYSBOOT> SET STARTUP_P1 "  "

Good Electronic/computer stores SF area

I haven't been in the San Francisco area in about 30 years. I remember a number of used computer/electronics stores back then, can't remember any names except Weird Stuff Warehouse. Are there any stores that are worth a visit? What about outside of the SF area? Doug

Re: VMS 8.4 Alpha Hobbyist disk images

On 2/1/2018 12:55 PM, Douglas Taylor via cctech wrote: I'm getting an Alphaserver 1000a and wanted to install VMS 8.4 - hobbyist license from CD. So, I went to the folder on my PC where I have the 8.4 hobbyist distribution.  There are 3 ISO files; ALPHA084, ALPHA084LP1 and ALPHA084LP2. I

Re: OS for a Paragon XP/E

On 2/12/2018 5:44 PM, Glen Slick via cctalk wrote: On Mon, Feb 12, 2018 at 2:17 PM, Ian Finder via cctalk wrote: Does anyone have leads on an operating system for such a beast? TIA, - Ian Thinking about buying this one, that has been listed for years for only $3500?

Re: Good Electronic/computer stores SF area

On 2/6/2018 9:13 PM, Mark Linimon via cctalk wrote: On Tue, Feb 06, 2018 at 04:50:02PM -0800, Al Kossow via cctalk wrote: but I've been told ACE has gone out of business Their website is now owned by a squatter. mcl Thanks to all who responded, I'm going to try and visit some of them when

PDP11/03 BA-11M Front panel switch replacement

I have a BA11-M box with the usual front panel control, however it was damaged and all three switches have been sheared off.  The LED's and the circuit card that connects to the power supply appear to be OK.  I would like to repair it and put it back into service.  Is there a replacement for

Re: PDP11/03 BA-11M Front panel switch replacement

On 2/25/2018 10:40 PM, Jon Elson via cctalk wrote: On Sun, Feb 25, 2018 at 7:50 PM, Douglas Taylor via cctalk < cctalk@classiccmp.org> wrote: I have a BA11-M box with the usual front panel control, however it was damaged and all three switches have been sheared off.  The LED's and the c

Re: MicroVAX I

On 8/12/2018 11:36 PM, robertbeauchamp33--- via cctalk wrote: My mother is moving and her spouse has a MicroVax I he bought new back in 1984 for some crazy amount. I don’t see this model listed in your chart? Can you tell me if there is any value to this machine? He also has two original

Re: Microvax II 'primer'?

On 1/23/2018 7:58 PM, Jules Richardson via cctech wrote: On 01/22/2018 02:05 PM, allison via cctech wrote: On 1/22/18 2:18 PM, Douglas Taylor via cctech wrote: I can't believe you 'just carry it into the house' all by yourself, unless you are professional athlete. I also have a MicroVax II

PDP11 I/O page memory map

Is there a document that describes the bank 7 memory page and what addresses are reserved for what?  I think I've seen this before but can't seem to put my hands on it. Another question, bootstrap is reserved for 173000, how many words are allowed there for this?  How do the more complicated

Re: WeirdStuff going out of business

On 4/5/2018 8:21 PM, Al Kossow via cctalk wrote: Last Day is this Sunday http://www.vcfed.org/forum/showthread.php?63045-WeirdStuff-is-going-out-of-buisiness-( since I can't attach a picture here What's going to happen to all the weird stuff?

Andromeda SCDC Qbus controller question

I just got one of these and wanted to configure it via the 10 pin RS232 port on the board. Is the port a standard DLV11-J type? I have one of those D-bit DLV11-J to DB25 adapters but not getting any response. Any info on the few jumpers on the board? Doug

Re: DEC 3000 (alpha) faultfinding

I have a functioning Alpha 3000 300, perhaps it can help with some of the questions you have. Doug On 3/28/2018 4:17 PM, Peter Coghlan via cctalk wrote: I've got a DEC 3000 model 300 and a couple of DEC 3000 model 600 alphas which failed some time ago and the recent Alphaservers thread has

LSI11 CPU Microm

I was trying to put together a minimal PDP-11/03 using a quad width M7264 CPU and got nothing, no ODT prompt.  I'm not sure the board is working. Searching the internet I came across this page which described a M7264 CPU board with a 'bad' MICROM

Re: DEC BA213 and BA213 S-boxes?

Ethan; I have owned both BA213 and BA215 microvaxes.  The one recurring problem I had was with the power supplies, H7868 I think the number is. Luckily, I picked up a couple of Dec Serv 550's which gave me spares and a PDP11/53 S box CPU. I was able to run the PDP11 in one of the VAX based BA

Re: DEC 3000 (alpha) faultfinding

On 3/29/2018 8:27 AM, Peter Coghlan via cctalk wrote: I have a functioning Alpha 3000 300, perhaps it can help with some of the questions you have. Doug Many thanks for the offer Doug.  However, I can't think of anything I can ask you to do right now. On my machine, the mini console

Re: AlphaServers

Anyone out there do Alphas anymore? I have a running; 1000A 4/266 with 384MB Ram an full compliment of Storage Works disks (has redundant power supplies and a nice roll around cabinet) 3000-300 booting from a SCSI2SD disk, (this is nice since it is kind of light and can be picked up and

Re: R: AlphaServers

On 3/21/2018 9:58 AM, Mazzini Alessandro via cctalk wrote: Two Digital Pws 500/au, one with vms (8.4), one with vms (8.4) and tru64 (latest version, supposedly) -Messaggio originale- Da: cctalk [mailto:cctalk-boun...@classiccmp.org] Per conto di John Blake via cctalk Inviato:

DEC VR150 montior

Does anyone have a schematic for this DEC monitor?  I have one that has good video but doesn't seem to want to respond to video input.

Re: PDP11 I/O page memory map

Noel; Thanks for the exact info I was looking for!  I knew there was a text listing of the addresses and what devices occupied those addresses.  Going thru the manuals one by one was way too tedious.  Thanks for explaining the 'bank switching' that is done to accommodate the larger boot

Re: DEC Alpha Bug Check Crash

On 11/9/2018 12:59 PM, Jon Elson via cctalk wrote: On 11/08/2018 11:09 PM, Douglas Taylor via cctalk wrote: I hadn't started this DEC Alpha 3000-300 since last summer, and booted it up so I could load the new PAK's the other day. The result was that it completes almost the entire OpenVMS

DEC Alpha Bug Check Crash

I hadn't started this DEC Alpha 3000-300 since last summer, and booted it up so I could load the new PAK's the other day. The result was that it completes almost the entire OpenVMS startup, but then crashes with the following: %SET-I-INTSET, login interactive limit = 64, current interactive

Re: DEC Alpha Bug Check Crash

On 11/10/2018 6:17 AM, Peter Coghlan via cctalk wrote: It maybe that the DECW$Config.exe image is bad, since that is where the bugcheck always occurs.  Although this is confusing because it did successfully boot in console mode previously. While it's not impossible, I doubt the problem is

Re: DEC Alpha Bug Check Crash

On 11/12/2018 1:30 PM, Patrick Finnegan via cctalk wrote: On Mon, Nov 12, 2018 at 12:22 PM Jon Elson via cctalk wrote: On 11/11/2018 11:36 PM, Douglas Taylor via cctalk wrote: This is most likely correct. I re-installed the OS on a different SD card/SCSI2SD device and got a successful

Re: DEC VR150 CRT Monitor

On 1/16/2019 6:38 AM, Peter Coghlan via cctech wrote: I have one of these and would like to get it working correctly, but can't find any info on it from the internet. It has a date code of 1989 and was built in Yokahama Japan, by who I don't know. Does anyone know who DEC had build there CRT

DEC VR150 CRT Monitor

I have one of these and would like to get it working correctly, but can't find any info on it from the internet. It has a date code of 1989 and was built in Yokahama Japan, by who I don't know. Does anyone know who DEC had build there CRT monitors back then? Are schematics available? Doug

Re: Missing FORRTL

On 11/20/2018 6:02 AM, Peter Coghlan via cctalk wrote: I'm trying to use the Compaq/HP Extended Math Library  (CXML) on a DEC Alpha under AXP Openvms 8.4 - Hobbyist License. Fortran 8.2 and CXML were part of the Hobbyist distribution I downloaded. CXML complains that FORRTL is not present

Missing FORRTL

I'm trying to use the Compaq/HP Extended Math Library  (CXML) on a DEC Alpha under AXP Openvms 8.4 - Hobbyist License. Fortran 8.2 and CXML were part of the Hobbyist distribution I downloaded. CXML complains that FORRTL is not present or the version is too low, (it is not present - $Product

Re: Missing FORRTL

On 11/22/2018 7:21 AM, Peter Coghlan via cctalk wrote: Yes, there is a SYS$SHARE:DEC$FORRTL.EXE in SYS$COMMON:[SYSLIB], which was put there when the Fortran compiler was installed.  I can compile, link and run ordinary Fortran programs. There should have been a SYS$SHARE:DEC$FORRTL.EXE

Re: DEC bits wanted

On 11/26/2018 7:50 AM, Dave Wade via cctalk wrote: Folks, I have a VAXStation 4000/VLC which I would like to try to use as a workstation. I have a keyboard and mouse, but can't find any connector for the video port in the UK, and the only thing I can find in the USA is this:-

Re: WTD: 9 track open reel for PDP-11

On 12/27/2018 1:53 PM, Chuck Guzis via cctalk wrote: On 12/27/18 10:32 AM, Glen Slick via cctalk wrote: If you want something that can easily be shipped and moved around one option is a Qualstar 1052. I wasn't impressed with the quality and performance of those. I gave away the ones I had.

Re: Teaching Approximations (was Re: Microcode, which is a no-go for

On 1/8/2019 7:21 PM, Chuck Guzis via cctalk wrote: On 1/8/19 3:04 PM, Fred Cisin via cctalk wrote: But, using a crude code of 'A' = 1, 'B' = 2, 'C' = 3, etc. "ELGAR" appears in PI at decimal digits 7608455 I suspect that Pi, to a sufficient number of places could decode anyone's surname. No,

Re: More old stuff incoming

I too have an old spectrometer that requires a PC with an ISA slot, [Bomem MB series] and the interface card is ISA form.  It has been a challenge to find old PC's with an ISA slot, most are recycled for scrap.  The ones I have came from thrift stores, but now the thrift stores are reluctant

Tektronix Keyboard

This I didn't know. I bought a Tektronix 4207 color graphics terminal without a keyboard recently.  Finding the correct keyboard part number seemed to be a process with great uncertainty, the VintageTEK folks said the correct one was a 2468.  One of these was for sale on ebay for $300 - no

Re: SCSI2SD: Is it worth a try?

I've used the SCSI2SD with great success with vintage DEC computers. On QBUS machines, both vax and pdp-11, it has worked with Emulex UC07, TD systems Viking, Andromeda SCDC and the DEC RQZX1 controllers. I have used it on native SCSI controllers in VAX 3100, VLC 4000 and 64 bit ALPHA machines.

Re: 11/93 next step

On 6/1/2019 12:11 AM, Rod Smallwood via cctalk wrote: Hi Well we are moving forward. The 160336 alternate RQDX3 address and vector have been confirmed as OK by one of our Techno Mages. So rather than an RX50 I'll give an RX33 whirl. A floppy disk way in means I can enhance the

DEC QBUS power supply minimum load

The M7264 CPU thread reminded me of the collection of LSI-11 CPU's that I have and want to get up and running.  A very useful thread. This may have been covered some time in the past, but, my question is "What is the minimum load for the power supply in the BA11-M, -N and BA23 boxes?" Is it

Re: Possible PUTR bug?

I understand your frustration, because all I really wanted to do was read/write RX33 and RX50 5-1/4" floppies to move data in and out of my microPDP11.  Once, I wanted to write an RX23 3-1/2" floppy with OpenVMS PAK files that could be read on an DEC Alpha. Finding a PC that supports the

Re: RT-11 doesn't recognize my 3.5" floppy

Very interesting , now that you got it to work, what can you use it for? Will it be an exchange media with PUTR? Doug On 5/6/2019 6:20 PM, Charles via cctalk wrote: I have installed an RQDX3 and the M9058 distribution board in my 11/23+. Since I don't have a 5.25" drive yet, I hooked up a 3.5"

micropdp11 and virtual memory

I've been compiling and running some Fortran programs on my microPDP11/53 computer and have questions about Fortran VIRTUAL arrays. Details: KDJ11-D/S cpu with 0.5 MB of ram, additional 1MB of Qbus ram.  I'm running RT11 V5.7 ZM and using the F77XM compiler, version 5 (I think). What I am

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 8/11/2019 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 8/11/2019 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

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: 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 8/10/2019 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 in

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

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: 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

MicroPDP-11/23+ cabinet kit cables

I'm putting together a MicroPDP-11/23 in a BA23 box.  Have the M8189 CPU quad width board and the bulkhead cabinet kit, with two DB25 connectors and switches to set the baud rate.  On bitsavers the 'MicroPDP11 system technical manual' shows how to set jumpers on the M8189 to allow this cabkit

Re: MicroPDP-11/23+ cabinet kit cables

On 7/25/2019 10:11 PM, Glen Slick via cctalk wrote: On Thu, Jul 25, 2019 at 10:09 AM Douglas Taylor via cctalk wrote: I'm putting together a MicroPDP-11/23 in a BA23 box. Have the M8189 CPU quad width board and the bulkhead cabinet kit, with two DB25 connectors and switches to set the baud

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 > quad

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: 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

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:

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

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?

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

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