Re: Nopecraft - was Re: OT: learner kits

On 6/20/2015 8:06 PM, William Donzelli wrote: Right. Get 'em hooked on Minecraft, and then it'll be easier to push them into harder drugs like VHDL later! :) There is a good grain of truth to that. In complex Minecraft command block systems, a programmer has to think about many, many tasks,

1990 Era computer room

I saw this newpaper photo on ebay, item 191606970872, where these 2 big wigs are proudly standing in front of their computer system looking over some printout. The actual computers in the picture don't look familiar to me, can anyone ID them? Doug

Re: List Gripes

I've been getting those unsubscribe messages on a regular basis, they appeared after I changed my mail from verizon to comcast. I was blaming it on comcast, gave them holy hell! But the email does get thru. On 7/3/2015 2:41 PM, Vincent Slyngstad wrote: From: John Willis: Friday, July 03,

Re: Analog to Digital Converter

On 8/15/2015 12:40 PM, tony duell wrote: I have a number of laboratory instruments that are from the 1990 time frame. They produce digital data that is the digitized signal from a detector, the data can be from 512 to 65K samples long. The ADC used in these instruments is a 16bit

Re: Analog to Digital Converter

On 8/18/2015 7:01 PM, dwight wrote: Reading the note made me think of something else. If it is an SAR, and you read to soon, the LSBs of the incomplete conversion will always be the same. All ones or all zeros. If it is a Sigma-Delta, and the input has noise on it that is above the same rate,

Re: Analog to Digital Converter

I believe that is true, it is a SAR type of ADC. That is an import piece of information there concerning reading the ADC too fast. Because I have one instrument that is working properly I can use that as a baseline to look at how fast the ADC is being pinged on. This gives me something to

Re: Analog to Digital Converter

On 8/15/2015 12:40 PM, tony duell wrote: I have a number of laboratory instruments that are from the 1990 time frame. They produce digital data that is the digitized signal from a detector, the data can be from 512 to 65K samples long. The ADC used in these instruments is a 16bit

Re: Analog to Digital Converter

On 8/16/2015 8:24 AM, Al Kossow wrote: On 8/15/15 6:41 PM, Jon Elson wrote: DDC made a number of hybrid ADCs, but I've never seen one that was 3 x 4! That's really big. Some of the Data Translation modules were that big. The normally had the block diagram / part number / and Data

Re: Advice Requested on Life Expectancy of a PC Windows System

I have Win3.1, Win98, and XP systems in separate boxes to support my classic computer interests. The latest is my Tek TDS320 oscilloscope, which I wanted to get a screen grab or actual data from. TEK had a piece of code Docuwave I think, which is 20 years old which talks to it via rs232 or

DEC Power Conditioner on Ebay

I ran into this looking for something else on ebay: Digital Constant Voltage Conditioner H7225 item 331591861028 I don't think I ever saw one of these before, were they of any use?

Analog to Digital Converter

I have a number of laboratory instruments that are from the 1990 time frame. They produce digital data that is the digitized signal from a detector, the data can be from 512 to 65K samples long. The ADC used in these instruments is a 16bit 100ksample/sec design. The ADC is in a 3 by 4 inch

Re: DEC RX02-PA?

On 8/9/2015 8:01 PM, Jerome H. Fine wrote: Pete Turnbull wrote: On 09/08/2015 18:14, Sean Caron wrote: DEC did sell a version of the BA23 that was intended to be used just as an expansion peripherals cabinet. You shouldn't have any problems putting HH devices in BA23 bays (so long as you

Re: usb-to-parallel port solutions

On 11/5/2015 9:08 PM, Chris Elmquist wrote: On Friday (11/06/2015 at 01:51AM +), d...@661.org wrote: Can somone recommend a good USB-to-parallel port solution that will easily work with Linux? FT245?? https://www.sparkfun.com/products/7841 Will look like a tty device to

Sources for Old ISA boards

I've seen the discussion here about sources for old IC's, ones that are out of production, mainly the DEC buss interface chips. Are there places where old PC cards can be found? I mean besides ebay. I'm looking for ISA interface cards that were for Bomem spectrometers, they are probably

Teletype on ebay

There is a Teletype printer on ebay, the seller is in Virginia. Ebay item 231990393069 The auction title is: 1966 - Vintage Antique TELETYPE INKTRONIC Receive Only Set TelePrinter Parallel

Re: Win98SE Update/Patches WAS: Can Windows 98SE run on an Intel I7 with SATA hard drives?

On 1/31/2016 8:30 AM, Dale H. Cook wrote: At 08:10 PM 1/30/2016, Eric Christopherson wrote: A few months ago I was interested in resurrecting an old ThinkPad ... I have a couple of old Thinkpads running 98SE. Dale H. Cook, Roanoke/Lynchburg, VA Osborne 1 / Kaypro 4-84 / Kaypro 1 / Amstrad

Re: Tool to convert between Motorola FFP and IEEE754 float formats?

On 2/14/2016 8:47 PM, Philip Pemberton wrote: On 14/02/16 23:56, Philip Pemberton wrote: Hi, Does anyone know of a tool which can convert between Motorola's FFP (Fast Floating Point) float format and IEEE754? I'm trying to reverse-engineer some ancient 68k code which uses the FFP library, but

MicroVax II

I just got a MicroVax II in the BA123 world box chassis. I has a TK50, RX50, RXDQ2, but no DEQNA. I'd like to get it running an OS. The DU disks don't work, but I have a couple of Qbus SCSI controllers that might come in handy. Can you use those SD to SCSI convertors in this type of

Re: MicroVax II

On 7/30/2016 11:50 AM, Paul Koning wrote: On Jul 29, 2016, at 10:30 PM, Jerry Weiss wrote: ... I have booted both V7.3 and V5.5-2 off a 4GB SD with SCSI2SD V4.6 on a MicroVax II with 16 Mb. Note that DEQNA will not work (at all) on either version. You’ll need a DELQA.

Re: MicroVax II

On 7/29/2016 9:30 PM, Zane Healy wrote: On Jul 29, 2016, at 6:08 PM, Douglas Taylor <dj.tayl...@comcast.net> wrote: I just got a MicroVax II in the BA123 world box chassis. I has a TK50, RX50, RXDQ2, but no DEQNA. I'd like to get it running an OS. The DU disks don't work, but

Re: MicroVax II

On 7/29/2016 10:55 PM, Glen Slick wrote: On Fri, Jul 29, 2016 at 6:08 PM, Douglas Taylor <dj.tayl...@comcast.net> wrote: I just got a MicroVax II in the BA123 world box chassis. I has a TK50, RX50, RXDQ2, but no DEQNA. I'd like to get it running an OS. The DU disks don't work, but

Re: MicroVax II

On 7/29/2016 10:30 PM, Jerry Weiss wrote: On Jul 29, 2016, at 8:30 PM, Zane Healy <heal...@aracnet.com> wrote: On Jul 29, 2016, at 6:08 PM, Douglas Taylor <dj.tayl...@comcast.net> wrote: I just got a MicroVax II in the BA123 world box chassis. I has a TK50, RX50, RXDQ2, but no

Re: MicroVax II (Doug)

On 7/31/2016 3:58 PM, Steven M Jones wrote: On 07/31/2016 11:27, Douglas Taylor wrote: On 7/31/2016 2:44 AM, Graham Reid wrote: They were just networked, it wasn't a cluster. Do you remember if the networking software was part of VMS 5.5 or was it a third party? I seem to remember third

Re: MicroVax II (Doug)

On 7/31/2016 5:40 PM, william degnan wrote: On Sun, Jul 31, 2016 at 3:58 PM, Steven M Jones <classic...@crash.com> wrote: On 07/31/2016 11:27, Douglas Taylor wrote: On 7/31/2016 2:44 AM, Graham Reid wrote: They were just networked, it wasn't a cluster. Do you remember if the netw

Re: MicroVax II (Doug)

On 7/31/2016 10:35 PM, william degnan wrote: I have the multinet install on a SCSI vax expansion hard drive on my 3100, I have a way to use this on someone's main system, to install it. Clunky but it works. I also have the process documented. Bill That sounds good. BTW, where do I go to get

Re: MicroVax II (Doug)

On 7/31/2016 2:44 AM, Graham Reid wrote: The company I worked for in 1989 had three hand-me-down MicroVax II from the US parent. They were originally a PDP11/73 box, which had been converted. They ran VMS 5.5-2, all had DEQNA, with no problems that I remember. They were just networked, it

Transitional Technology SCSI controller

I have an S-Box Q-bus SCSI controller made by Transitional Technology, it is missing two socketed chips; the PROM and what I think is a static RAM chip, both 28 pins. Does anyone have the HEX file of the PROM? Does anyone know what the RAM chip is? I curious to take a shot and see if this

Re: MicroVax II

On 7/29/2016 10:55 PM, Glen Slick wrote: On Fri, Jul 29, 2016 at 6:08 PM, Douglas Taylor <dj.tayl...@comcast.net> wrote: I just got a MicroVax II in the BA123 world box chassis. I has a TK50, RX50, RXDQ2, but no DEQNA. I'd like to get it running an OS. The DU disks don't work, but

Re: MicroVax II

On 7/29/2016 10:30 PM, Jerry Weiss wrote: On Jul 29, 2016, at 8:30 PM, Zane Healy <heal...@aracnet.com> wrote: On Jul 29, 2016, at 6:08 PM, Douglas Taylor <dj.tayl...@comcast.net> wrote: I just got a MicroVax II in the BA123 world box chassis. I has a TK50, RX50, RXDQ2, but no

VAX file format conversion

I have a MicroVax 4000 that I am trying to update the license PAKs on, the last time I had valid PAKs on this machine was in 2002 (Hobbyist Licenses). I registered and have received the new Hobbyist License PAKs. I connected a laptop and transferred the text file using C-Kermit on the VAX

Re: VAX file format conversion

On 8/11/2016 4:47 PM, Ian S. King wrote: On Thu, Aug 11, 2016 at 1:26 PM, emanuel stiebler <e...@e-bbes.com> wrote: On 2016-08-11 14:08, Douglas Taylor wrote: I have a MicroVax 4000 that I am trying to update the license PAKs on, the last time I had valid PAKs on this machine was i

Re: VAX file format conversion

On 8/11/2016 4:47 PM, Ian S. King wrote: On Thu, Aug 11, 2016 at 1:26 PM, emanuel stiebler <e...@e-bbes.com> wrote: On 2016-08-11 14:08, Douglas Taylor wrote: I have a MicroVax 4000 that I am trying to update the license PAKs on, the last time I had valid PAKs on this machine was i

Re: VAX file format conversion

On 8/13/2016 3:14 PM, Peter Coghlan wrote: Oh and if you are doing serial transfers, yes, keeping the baud rate low is a good strategy. I had to spend some time working on the DECnet-DOS DDCMP driver developing better character overrun recovery strategies. Yes, you may be coming in via a

MicroVax II update

Progress on getting the MVII up and running: I ordered the SCSI2SD adapter and it has come in, the plan is to use it as the system disk on the MVII. The hobbyist VMS PAKS have arrived and I was able to download the VMS 7.3 iso, not sure what I can do with it since I think it must be burned

Re: MicroVax II update

On 8/5/2016 4:48 PM, dersc...@gmail.com wrote: On Aug 5, 2016, at 1:42 PM, Douglas Taylor <dj.tayl...@comcast.net> wrote: Progress on getting the MVII up and running: I ordered the SCSI2SD adapter and it has come in, the plan is to use it as the system disk on the MVII. The hobbyi

Re: MicroVax II update

On 8/5/2016 6:18 PM, Jerry Weiss wrote: On Aug 5, 2016, at 3:48 PM, dersc...@gmail.com wrote: On Aug 5, 2016, at 1:42 PM, Douglas Taylor <dj.tayl...@comcast.net> wrote: Progress on getting the MVII up and running: I ordered the SCSI2SD adapter and it has come in, the plan is

Re: Excessive Bounces

On 7/1/2016 5:01 PM, Rod Smallwood wrote: On 01/07/2016 18:10, Rob Jarratt wrote: I keep getting emails from the list server disabling my account for excessive bounces. Is it possible to get a log showing where the problem is coming from so I can complain to my ISP? Thanks Rob I

Re: What's the rarest or most unusual computer-related item do you own?

obile Mail On Saturday, January 28, 2017 Douglas Taylor <dj.tayl...@comcast.net> wrote: I have a certificate that my father was given in 1957 for training on a Honeywell Datamatic 1000 computer. Here is a summary of this 'adva

Re: What's the rarest or most unusual computer-related item do you own?

I have a certificate that my father was given in 1957 for training on a Honeywell Datamatic 1000 computer. Here is a summary of this 'advance' in computer technology from the ACM: The DATAmatic 1000 (D-1000) is a high-capacity electronic data-processing system designed specifically for

Re: Microvax II hardware not recognized

On 8/19/2016 6:04 AM, Peter Coghlan wrote: [snip] Device Device Error Name Status Count MPA0: Offline 0 PTA0: Online 1 PUA0: Online 1 PUB0:

Re: Microvax II hardware not recognized

On 8/20/2016 10:35 PM, Jerry Weiss wrote: On Aug 20, 2016, at 10:27 AM, Douglas Taylor <dj.tayl...@comcast.net> wrote: When I started this I hadn't put the RQDX2 back in, so I had only one UDA controller and that's how I saw the DHV11 show up. When I put the RQDX2 back in that's when

Re: Microvax II hardware not recognized

On 8/18/2016 4:39 PM, Noel Chiappa wrote: > From: Paul Koning > A lot of Unibus/Qbus devices have "floating CSRs" which means they > don't have fixed address assignments. Instead, the correct address is > based on a set of rules, which puts devices in an ordered list and

Re: Microvax II hardware not recognized

Yes, it is an MSCP disk controller, and it seems to work OK. I boot from it and the CSR is at the standard 1st address, it is connected to a SCSI2SD board. I think you have a good point about CSR addresses. There is a CONFIGURE tool that tells you what set the addresses to for a particular

Re: Microvax II hardware not recognized

On 8/19/2016 12:19 PM, Paul Koning wrote: On Aug 19, 2016, at 11:58 AM, Douglas Taylor <dj.tayl...@comcast.net> wrote: ... It is the World Box, BA123 and I have hardware manuals that came with the MVII. When I got it this was the configuration: Slot 1 - CPU Slot 2 - Memory Slot 3 - Bus

Re: Microvax II hardware not recognized

On 8/19/2016 4:55 PM, Douglas Taylor wrote: Yes, it is an MSCP disk controller, and it seems to work OK. I boot from it and the CSR is at the standard 1st address, it is connected to a SCSI2SD board. I think you have a good point about CSR addresses. There is a CONFIGURE tool that tells

Re: Microvax II hardware not recognized

On 8/19/2016 6:49 PM, Glen Slick wrote: Device,Number? dhv11,1 Device,Number? tqk50,1 Device,Number? rqdx3,1 Device,Number? exit Address/Vector Assignments -772150/154 RQDX3 -774500/260 TQK50 -760440/300 DHV11 configure Enter device configuration, HELP, or EXIT Device,Number? dhv11,1

BA123 Side panels and Stuck TK50

This is real trivia but I have a BA123 cabinet (MicroVax II) and there a screws that hold the side panels in place, and mine are missing. Does anyone know the type of screw I should go look for at the hardware store? The same cabinet has a TK50 and I foolishly put a cartridge into it and now

Re: BA123 Side panels and Stuck TK50

On 8/30/2016 4:54 PM, shad wrote: Hello, The same cabinet has a TK50 and I foolishly put a cartridge into it and now it won't come out. It is called being 'stuck'. How do proceed to get this TK50 cartridge out? Error 'stuck' means that the tape has been "glued" to the head because of

Recovering 4mm tar tapes

I have a pair of 4mm DDS tapes from 1999 that I would like to recover. I was able to read one with tar on a Debian (jessie) Linux system, but the second gives an error. The tape that I could read is a Sony with DDS markings and 4 bars next to the DDS logo. It was written on an SGI computer.

Re: Recovering 4mm tar tapes

On 9/12/2016 6:05 PM, Pete Turnbull wrote: On 12/09/2016 16:12, Douglas Taylor wrote: I have a pair of 4mm DDS tapes from 1999 that I would like to recover. I was able to read one with tar on a Debian (jessie) Linux system, but the second gives an error. The second tape is a 3M brand

Re: DEC F-11 (Fonz) processor ceramic chip carriers (PDP-11) on eBay

On 9/21/2016 1:35 AM, Scott Baker wrote: http://www.ebay.com/itm/191974796676?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649 I recognize the box. A long time ago I purchased the KEV11 floating point chip for the 11/2 processor and it came in a box exactly like that one.

Microvax II hardware not recognized

I've brought up a MicroVax II and installed VMS 5.5-2 on a SCSI2SD disk and it is fun to work with. (I also installed openvms 7.2 without much drama) The problem I am having is that is has a TK50 tape drive and controller, but it never has shown up in the device list. I even swapped in a

BA23 BA11-M power up after long time

I have a couple of BA23 based boxes and one BA11-M box that I haven't powered on in a couple of years and would like to resurrect them into working PDP11's. How should I go about powering them up without doing any damage? What is an appropriate load for the power supply?

Re: What's the rarest or most unusual computer-related item do you own?

On 1/10/2017 5:29 PM, dwight wrote: I have Nicolet 1080. It is a 20 bit computer and has 12Kx20 core memory. To my knowledge, there are only 5 of these remaining in existence. Only 375 were said to have been made. Mine is mostly working but the last time I ran it, it had disk problems. I

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

: Douglas Taylor wrote: 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? I have

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" <cct...@classiccmp.org <mailto:cct...@classiccmp.org>> wrote: > > I have a couple of vaxes that output 'unique' video, Alpha 3000 300, Alpha 3000 400, Vax 4000 V

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

downloaded the installer my Norton Antivirus found a Trojan in it, so I passed. Doug On 2/1/2018 1:10 PM, Dave Wade wrote: -Original Message- From: cctech [mailto:cctech-boun...@classiccmp.org] On Behalf Of Douglas Taylor via cctech Sent: 01 February 2018 17:56 To: General Discussion: On-Topic

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

too, or just the jbod? -Ben Sent from my iPhone On Feb 4, 2018, at 1:42 PM, Douglas Taylor via cctech <cct...@classiccmp.org> wrote: 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.

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

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