Re: ADVENT on TSX-Plus system?

On Oct 18, 2015, at 1:29 PM, ben wrote: > > On 10/18/2015 12:02 PM, Charles wrote: >> I have a PDP-11/23+ with 4 MB RAM and two RL02 drives. I can boot >> RT-11XM, then run VBGEXE and start ADVENT with no problem. >> >> But TSX-Plus 6.50, at least the version I have, has to run over RT-11SJ, >>

Re: Model 152 PSU dummy loads - Re: NeXT Cube - powers on briefly then off again

within or anything with flammability at working temperatures. Jerry Weiss WB9MRI > On Oct 26, 2015, at 9:27 AM, Paul Koning wrote: > > >> On Oct 26, 2015, at 9:43 AM, Toby Thain wrote: >> >> On 2015-10-26 1:02 AM, Brian Archer wrote: >>> Even a 10W resistor

Re: Know any Fortran programmers who need a more interesting job?

> On Oct 30, 2015, at 10:28 AM, Paul Koning wrote: > > >> On Oct 30, 2015, at 5:29 AM, Liam Proven wrote: >> >> «Why NASA Needs a Programmer Fluent In 60-Year-Old Languages >> >> To keep the Voyager 1 and 2 crafts going, NASA's new hire has to know >> FORTRAN and assembly languages. >> » >>

Re: flash (or ide) storage for unibus 11?

> > On Nov 25, 2015, at 10:41 PM, Jerome H. Fine wrote: > > >Johnny Billquist wrote: > …… > For example, the DSD 880/30 (from Data Systems Design of course) emulates > 3 RL02 disk drives using a single internal (non-removable) hard drive. The > box > also holds a single RX03 floppy disk drive

Re: flash (or ide) storage for unibus 11?

On Nov 26, 2015, at 6:29 AM, Jerome H. Fine wrote: > > This a nice summary of the state of affairs for DEC/RT-11 8 inches Floppies. > >> The Sigma SDC RXV31 controller supported 22 bit DMA. See 400255-C SDC-RXV31 >> Floppy Ctrl Man Aug86 >> > I saw that model at one point. It was the o

Re: Sector Interleave

On Nov 30, 2015, at 6:35 PM, Paul Koning wrote: > > >> On Nov 30, 2015, at 4:45 PM, Fred Cisin wrote: >> Oversimplified remedial tutorial: Ideally, the system reads a sector, does what it has to do with the content, and goes back for the next one, and can read every sector of t

Re: Sector Interleave

Jerry Weiss j...@ieee.org > On Nov 30, 2015, at 7:12 PM, Johnny Billquist wrote: > > On 2015-12-01 02:06, Jerry Weiss wrote: >> >> >> The TU58 was a block addressable using a cassette tape drive famously(?) >> called DECtape II. File placement on the

Re: NeXTstation booting, NetInfo, and NTP

On Jan 25, 2016, at 7:28 AM, Pete Turnbull wrote: > > Yesterday I dug out my NexTstation (68040 25MHz slab with 32MB of 100ns > SIMMs) which has OpenStep 4.2 for Mach installed. The lithium battery was > flat and it wouldn't boot so I've ordered a replacement and temporarily > kludged a pair

Re: Solid state recommendations

On Feb 8, 2016, at 4:07 PM, Dave G4UGM wrote: > > These seem popular:- > > http://www.codesrc.com/mediawiki/index.php?title=SCSI2SD > > new version > > http://www.ebay.com/sch/inertialcomputing/m.html > > > I have one, but I haven't used it yet. > > Dave > >> -Original Message- >>

Re: AT&T Uverse IPv6 vs. Mac OS X 10.(old)

> > On Mar 26, 2016, at 11:31 AM, Tapley, Mark wrote: > > (Apologies in advance to non-Apple users) > > Mac folks, > Last week AT&T “upgraded” our Uverse service. All of our Macs running > anything 10.6.8 or older quit working. > Cure was to turn off IPv6: System Preferences -> Ne

Re: AT&T Uverse IPv6 vs. Mac OS X 10.6

> On Mar 27, 2016, at 11:36 PM, Tapley, Mark wrote: > >> On Mar 26, 2016, at 5:19 PM, Jerry Kemp wrote: >> >> Just curious if something specifically is broken or non-fixable with the >> 10.6.8 IPv6 stack? >> >> I'm specifically wondering if you did any troubleshooting to resolve this? >> Or

Re: First VAX-11/730 VMS Boot! (was: Re: VAX-11/730 %BOOT-F-Unexpected Machine Check)

Very good progress. Suggest you initialize and mount the tapes first, then do the backup. $init mta0:/density=1600 JUN2015 $mount mta0: JUN2015 Substitute your actual tape device name for mta0: and need to use /density as applicable. Jerry Weiss, WB9MRI j...@ieee.org > On Jun

Re: First VAX-11/730 VMS Boot! (was: Re: VAX-11/730 %BOOT-F-Unexpected Machine Check)

If you are running backup and it is asking for additional tapes, then I believe you can do the following ^Y $spawn $ $reply/enable=all initialize additional tapes as needed (prior tape should have rewound…) mount tape $reply/to=MESSAGEID $exit $continue Jerry Weiss WB9MRI j

Re: PLATO Empire source?

What team were you on? Wouldn’t want the Kaz, Roms or Bugs to get this kind of information.. <> Uncle Feddie j...@ieee.org > On Jun 24, 2015, at 7:36 AM, Mouse wrote: > > Back in the late '70s, I played a game called -0empire- on a PLATO > system hosted, IIRC, at UIUC. Reading > http://

Re: PLATO Empire source?

On Jun 24, 2015, at 10:24 AM, Paul Koning wrote: > > The 0 prefix in the lesson name indicates a “published lesson” — which means > a frozen copy of the original made by CDC and distributed as part of the > PLATO distribution. The original name was “empire” and it became famous > under that n

Re: Where to get a Vax or microvax

1) Start small. You can always add to the collection later.That often occurs, sometimes with accompanying amnesia of the actual transaction. 2) If you possess genes for “like to take things apart” and “ability to put things back together *** ” start with a Q-Bus VAX. The number and types

Re: seeking advice on moving PDP 11 and related gear

On Jul 1, 2015, at 3:57 PM, devin davison wrote: > > Ive been trying to get a pdp 11 for quite a few years now, I recently found > someone selling a 11/34 with related gear in a couple of racks Here in my > state of florida. I jumped at the chance and bought it, i have not found > anything for sa

Re: seeking advice on moving PDP 11 and related gear

> On Jul 2, 2015, at 7:48 AM, Noel Chiappa wrote: > >> From: devin davison > >> any precautions I can take to make sure this all gets back in one >> piece? Especially in relation to the RL drives > > Other people have covered most of this; my additional advice is to download > the RL01/RL02 m

Re: PDP 11 - how to lock heads in a rx01 and rx02 - seeking advice

Make sure the doors are shut. I used to tape them. Remove any floppies you care about. Some of the non-DEC 8” drives used to come with a cardboard blank. But these were double sided disks and the blank was meant (I believe) to prevent the heads from banging against each other. Jerry Weiss

Re: PDP 11 - how to lock heads in a rx01 and rx02 - seeking advice

See page 2-8 for a view of the packing configuration. http://www.pdp8online.com/pdp8cgi/query_docs/tifftopdf.pl/pdp8docs/ek-0rx02-tm-001.pdf <http://www.pdp8online.com/pdp8cgi/query_docs/tifftopdf.pl/pdp8docs/ek-0rx02-tm-001.pdf> Jerry Weiss j...@ieee.org > On Jul 10, 2015, at

Re: VAX4000/300 MNS7.3 isntallation from CDROM

Follow the OpenVMS VAX Version 7.3 Upgrade and Installation Manual AA–QSBQD–TE http://h20565.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c04623149&lang=en-us&cc=us Section 3 takes you through the

Re: VAX4000/300 MNS7.3 isntallation from CDROM

I simply boot B dua3 the install system asks for a date > and I finally get a "$". Thats all.. > > That's why I've asked what todo.. > > Regards, > > Holm > > > > > > Jerry Weiss wrote: > >> Follow the OpenVMS VAX Version 7.3 Upgrade and I

Re: VAX4000/300 MNS7.3 isntallation from CDROM

ProcessACP process name "" Volume Status: Unknown ACP type. $$$ > On Aug 7, 2015, at 1:04 PM, Holm Tiffe wrote: > > Jerry Weiss wrote: > >> Having the CDROM write protected is normal for read-only media.The >> target drive needs to b

Re: VAX4000/300 MNS7.3 isntallation from CDROM

If the saveset restoration and the complex bootstrap both fail, suggest you investigate the following. 1) Make sure the SCSI bus that is used by the CD-ROM has proper termination and termination power. 2) Create/obtain a new image CD. Your image may be corruption or the CD-ROM may have trou

Re: Probs w. M3119 CXY08 MUX on VAX VMS 7.3

A few quick thoughts: 1) Bad non-name USB/Serial converter. I have one that won’t speak to a MVII console or certain non-DEC DLV11J cards 2) LED Analyzer is pulling too much current on the lines 3) Bad +-15 volt converter on board.Do you see any activity on control signals or send line? T

Re: Probs w. M3119 CXY08 MUX on VAX VMS 7.3

Sorry if some of the suggestions aren’t appropriate, was just throwing a few things out. $analyze/error/since=today/full/include=tx Can you post a sample of the output for one of the lines that has an error? Regards, Jerry > On Aug 17, 2015, at 4:11 PM, Holm Tiffe wrote: > &

Re: Cheap board guy

On Aug 21, 2015, at 2:00 PM, Noel Chiappa wrote: > >> From: Mark G. Thomas > >> 4x M8192 - KDJ11 (AA or AB?) -- two work, two fail POST > > And alas, we don't seem to have any prints for that card (although we do have > what amounts to a tech manual, so maybe we can create a set, with a certain

Re: A poltergeist in my machine?

Check if the -5v charge pump is stable and supplying the correct voltage. I recall a problem with a PDP 11/34 and a non-DEC memory board in which the on board pump went slowly bad. Depending on the data content and tolerance margins for the memory chips, we saw very erratic problems. Jerr

Re: Xerox Alto on eBay

> > On Apr 14, 2016, at 12:05 PM, Josh Dersch > wrote: > >> -Original Message- >> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Al Kossow >> Sent: Thursday, April 14, 2016 9:58 AM >> To: cctalk@classiccmp.org >> Subject: Re: Xerox Alto on eBay >> >> >> >> On 4/14/1

Re: Xerox Alto on eBay

On Apr 14, 2016, at 12:28 PM, Noel Chiappa wrote: > >> From: Josh Dersch > >>> They are 12 sector 2315 packs. You have to duplicate it on a two drive >>> Alto, since the format is unique. > >> we're able to duplicate packs and write new ones out from disk images. >> (At the moment it's kind of

Re: Lyle scores a WIN for our hobby!

> On Apr 28, 2016, at 12:25 PM, Evan Koblentz wrote: > >> We all owe a big "Thanks!" to Harry Sanders at S&H Computer Systems and his >> Board of Directors for making this release a reality for all vintage >> computer folks! Also, the hobby owes huge thanks to Lyle Bickley for >> tirelessly purs

Re: classics I threw away or sold ... foolishly

I am not sure I should read any more of this thread just before I head out to the Dayton Hamvention (http://hamvention.org). I no longer want to bring anything to put up for sale. I may need to have the spouse take away my wallet. Thought the amount and quality of vintage computers has been o

Re: Hamvention

I saw one Altair 8800 and one TRS-80 III out in the swap fest. Some more recent power (5?) series, but that’s about it. Jerry WB9MRI > On May 20, 2016, at 1:18 PM, Alex McWhirter wrote: > > > > > Anyone spot anything list related at hamvention? I'm around trying to find > anything cool

Re: Hamvention

Sorry, I didn’t ask on this one. It looked like a well used/loved machine with some wear and customizations to the front panel Jerry > On May 22, 2016, at 9:51 AM, Bill Sudbrink wrote: > > Jerry Weiss wrote: >> I saw one Altair 8800 > > I haven't seen an Altair at

Re: vintage computers in active use

The fellow was named “Lyndon Baines Johnson”…. but then again SR-71 sounds better than RS-71. The Blackbird is definitely one cool airplane, so perhaps LBJ got it right. > On May 30, 2016, at 3:46 AM, Paul Anderson wrote: > > The AR12 wasn't supposed to be called a SR71. Somebody messed th

Re: PDP-11/94-E

> On Jun 1, 2016, at 5:04 AM, Rod Smallwood > wrote: > > > OK from the beginning. > > 1.The 11/94 is housed in deep box located in a 42inch cabinet. It uses a > KDJ11-E Quad proc. board. > 2.Two buses (Q and Uni) are housed in the one box and are linked by a > special interface car

Re: PDP-11/94-E

> On Jun 1, 2016, at 10:08 AM, Rod Smallwood > wrote: > > > > On 01/06/2016 14:39, Jerry Weiss wrote: >> >>> On Jun 1, 2016, at 5:04 AM, Rod Smallwood >>> wrote: >>> >>> >>> OK from the beginning. >>>

Re: PDP-11/94-E

Jerry Weiss j...@ieee.org > On Jun 1, 2016, at 11:24 AM, Jerry Weiss wrote: > > > > > Its possible that a low or bad battery may be causing problems if the TOY > chip is also was used to store a the bits of the Setup or other internal > status. > You said

Re: PDP-11/94-E

Jerry Weiss j...@ieee.org > On Jun 1, 2016, at 1:59 PM, Brian L. Stuart wrote: > > On Wed, 6/1/16, Rod Smallwood wrote: >> On 01/06/2016 19:34, Brian L. Stuart wrote: >>> On Wed, 6/1/16, Rod Smallwood wrote: >>>> On 01/06/2016 18:57, Charles Anthony wr

Re: AT&T 3b2 vs SCSI2SD drive replacement

> On Jun 2, 2016, at 9:20 AM, Greg Stark wrote: > > On Thu, Jun 2, 2016 at 2:46 PM, Toby Thain wrote: >> Big +1 to inertialcomputing! > > > Hm, any vendors inside the EU? This is above the threshold where I > would have to deal with VAT payable if I order it from outside. > > -- > greg Fro

Re: PDP-11/94-E

On Jun 1, 2016, at 8:39 AM, Jerry Weiss wrote > ….. > Have you checked the Unibus supply voltages? > … > > As a rule-out make sure the Unibus cards are getting power correctly. The Power Supply sounds like is fine and powering the QBus side of things, but if the con

Re: RXV21 and 11/94

On Jun 7, 2016, at 7:42 PM, Rod Smallwood wrote: > > >> > Hi Pete > I put the memory then the cpu then the RXV21 and finally the RQDX3. > System boots from the RX50 and the RD53 just fine. > > Now I need to run diagnostics on the RXV21 and then the RX02. > As usual the manual tells you ev

Re: Accessing a TK50 or TK70 from RT

> On Jun 11, 2016, at 10:14 AM, Jerome H. Fine wrote: > > >Rod Smallwood wrote: > >> I have had some success in fixing a couple of TK tape drives. >> >> They now load and unload every time you press the button. >> >> SFSG now to talk to them from RT. >> >> Using the diagnostics on the format

Re: Accessing a TK50 or TK70 from RT

> On Jun 13, 2016, at 12:55 PM, Rod Smallwood > wrote: > > > > On 13/06/2016 17:20, Rod Smallwood wrote: >> >> >> I just had a thought is the magnet in a microwave cooker magnetron permanent >> or electro? > Back in 1960's the guy who I worked for had been in radar during the war. > We had

Re: Accessing a TK50 or TK70 from RT

> On Jun 14, 2016, at 10:12 AM, Rod Smallwood > wrote: > > > > ….. > > Anybody know what this is about? > MSCPCK-I-MU0-FW Rev level is 003/HW Rev level is 000 > > From the RT11 System Message Manual - ?MSCPCK–I–MUn-FW Rev Level is nnn/HW Rev Level is nnn Explanation: A comma

Re: PLATO and learning models (was Re: NuTek Mac comes)

On Jul 15, 2016, at 9:34 PM, Eric Smith wrote: > > On Fri, Jul 15, 2016 at 6:47 PM, Paul Koning wrote: >> I remember, around the same time, the Tektronix 4010. But that was >> far less flexible; it could only draw, not erase, unlike the PLATO terminals. > > The 4010 can erase just fine. The pr

Re: VMS stability back in the day (was Re: NuTek Mac comes)

On Jul 16, 2016, at 7:55 AM, Noel Chiappa wrote: > >> From: Jonas > >> At the time VMS was conceived, Unix was a university product, used for >> teaching and research, not for heavy production work. > > Err, not quite. In the mid-70's, the PWB system at Bell: > > https://en.wikipedia.org/wik

Re: MicroVax II

On Jul 29, 2016, at 8:30 PM, Zane Healy wrote: > > >> On Jul 29, 2016, at 6:08 PM, Douglas Taylor 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 I have a

Re: MicroVax II

On Jul 30, 2016, at 10:26 AM, Douglas Taylor wrote: > > On 7/29/2016 10:30 PM, Jerry Weiss wrote: >> On Jul 29, 2016, at 8:30 PM, Zane Healy wrote: >>> >>>> On Jul 29, 2016, at 6:08 PM, Douglas Taylor wrote: >>>> >>>> I just got a

Re: RX02 Debugging

> On Aug 2, 2016, at 4:06 PM, Kirk Davis wrote: > > I’m a noob using RX02’s but thought I’d run this past people that may have > debugged them in the past and see if they agree with what I’m finding: > > I’m trying to get a RX02 + RX211 + 11/44 going. The RX02 appears to power up > OK (fan an

Re: MicroVax II update

On Aug 5, 2016, at 3:48 PM, dersc...@gmail.com wrote: > >> On Aug 5, 2016, at 1:42 PM, Douglas Taylor 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 hobbyist V

Re: MicroVax II update

> On Aug 5, 2016, at 10:24 PM, Douglas Taylor wrote: > > 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 wrote: >>>> >>>> Progress on gettin

Re: Microvax II hardware not recognized

On Aug 17, 2016, at 10:37 PM, Douglas Taylor wrote: > > 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

Re: Microvax II hardware not recognized

> On Aug 20, 2016, at 10:27 AM, Douglas Taylor 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 I lost the DHV11. > > I did the configure from VMS 5.5, it wa

Re: MicroVAX II Console Garbling Characters

> > On Aug 24, 2016, at 9:41 AM, Rob Jarratt wrote: > > I have a MicroVAX II which has started garbling and losing characters output > to the console. It had seemed that re-seating the processor board would fix > it, but that no longer seems to be the case. > > > > I was just wondering if any

Q-Bus Memory Diagnostics and Repair

I have two bad memory boards and could use some advise on how to repair them. The first is an MSV11-PL 512KB-Q-Bus 22bit. Dead to both CSR and Memory address access in ODT. Was working until a short time ago. Checked all the jumpers and no evidence any magic smoke has been released. I have a

Re: Q-Bus Memory Diagnostics and Repair

> On Sep 8, 2016, at 12:26 PM, Noel Chiappa wrote: > >> From: Jerry Weiss >> The first is an MSV11-PL 512KB-Q-Bus 22bit. >> Dead to both CSR and Memory address access in ODT. >> ... before start poking around with my scope ... can recommend a >> particu

Re: Q-Bus Memory Diagnostics and Repair

On Sep 9, 2016, at 6:11 PM, Noel Chiappa wrote: > >> If your CPU is an 11/73 (which can directly 'access' [hate that verbism >> :-] all of memory from ODT, unlike the 11/23 which is restricted to the >> bottom 256KB), try playing around with a failing location, and its >> alternative, directly, a

Re: Need help with DSD-440 QBus Controller

> On Sep 15, 2016, at 7:51 PM, Julian Wolfe wrote: > > I recently acquired a DSD-440 drive and purchased its accompanying controller > on ebay. The controller is configured at defaults according to the manual on > Bitsavers. However, unless it is on the bus by itself after the RAM cards, >

Re: Need help: DSD-440 with unresponsive formatter/control board

On Sep 20, 2016, at 12:49 PM, Julian Wolfe wrote: > > > > So the DSD-440 I got at VCF is completely unresponsive. All of the LEDs are > on and never go out, which is bizarre - they are supposed to go out in 1/10 > of a second after power on. > > > I tried disconnecting everything but power

Re: Need help: DSD-440 with unresponsive formatter/control board

On Sep 20, 2016, at 1:37 PM, Julian Wolfe wrote: > > Both green LEDs are on. They're ALL on. > > As LED 9 is on (sorry for not being clear), then the CPU is active. That’s a good sign. Definitely look at the DC Power up/down circuit first. Jerry

Re: Need help: DSD-440 with unresponsive formatter/control board

On Sep 20, 2016, at 2:02 PM, Julian Wolfe wrote: > > After reading this section, I should probably bring up that when I checked > the PSU voltages, the 5v+ line was low, at 4.7v or so. I adjusted it back to > 5.05v on the pot as defined in the manual, and there it stayed steady, but it > didn

Re: Q-Bus Memory Diagnostics and Repair

On Sep 9, 2016, at 8:17 PM, Jerry Weiss wrote: > > On Sep 9, 2016, at 6:11 PM, Noel Chiappa wrote: >> >>> If your CPU is an 11/73 (which can directly 'access' [hate that verbism >>> :-] all of memory from ODT, unlike the 11/23 which is restricted to t

Re: Bootable 8" floppy needed for PDP-11/23

> On Oct 15, 2016, at 12:53 PM, Scott Baker wrote: > > Hi, > > I have a PDP-11/23 system with a DSD-440 dual 8" floppy drive. > On reset, it prints: > > 28 > START? > > and waits for the operator to insert a bootable 8" floppy and type DY0. > The problem is I do not have a bootable 8" floppy.

Re: DEC bus transceivers

> On Oct 26, 2016, at 9:18 AM, Christian Gauger-Cosgrove > wrote: > > On 26 October 2016 at 10:02, Philipp Hachtmann wrote: >> BTW Why isn't there a separate list "ccbusinterfacechip" where those >> recurring 8881 discussions can be separated from the more interesting stuff? >> > The discussi

Re: ISO: PDP-11/40 LTC and Stack Limit options

> On Nov 21, 2016, at 2:13 PM, william degnan wrote: > > On Mon, Nov 21, 2016 at 2:37 PM, Josh Dersch wrote: > >> Hi all -- >> >> I'm finally turning my attention back to my 11/40 (which I started working >> on 7 years ago and never quite got around to finishing -- I've learned a >> lot since

Re: ISO: PDP-11/40 LTC and Stack Limit options

> On Nov 21, 2016, at 4:44 PM, william degnan wrote: > > On Mon, Nov 21, 2016 at 4:58 PM, Jerry Weiss wrote: > >> >>> On Nov 21, 2016, at 2:13 PM, william degnan >> wrote: >>> >>> On Mon, Nov 21, 2016 at 2:37 PM, Josh Dersch wrote: &g

Re: Spinning up RL02 w/o head load ? (was Cleaning RK05 packs)

> On Jan 7, 2017, at 3:42 AM, Pete Turnbull wrote: > > On 07/01/2017 04:08, Robert Armstrong w#rote: >>> Paul Koning wrote: >>> one would think unplugging the power to the head actuator coils ... >> >> One might think that, and that plan works for an RK05, but an RL02 is >> smarter. Unless t

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

> On Jan 17, 2017, at 12:58 PM, Alan Frisbie wrote: > > I just joined this list, so I'm not sure which of the items I own > would be considered by this group to be rare or unusual, but here > goes… > Hi Alan, Nice to see you on the list. If memory serves me correctly, you presented a talk

Re: Looking to read past EOT on DDS/DLT/LTO

> On Jan 25, 2017, at 1:24 PM, Stan Sieler wrote: > > Hi, > > We have a friend with a "tape" (DDS, DLT, or LTO ... don't know which yet) > to which was written a system backup. Thousands of files, with an EOF > between each file, and a double EOF + EOT at the end. > > The problem: > They then

Re: RL02 version of UNIX6?

> On Feb 2, 2017, at 10:06 PM, Noel Chiappa wrote: > > ,, > The advent of the /23 (with no CSW, and no KW11-L/P), made things more > complicated. (The clock is pretty key - Unix needs one - several things, > e.g. parts of the teletype drivers, require real-time delays provided by the > clock

Re: Changing wire-wrap configurations on DEC circuit boards

> On Feb 13, 2017, at 7:29 PM, allison wrote: > > On 02/13/2017 06:45 PM, Earl Evans wrote: >> Hi there, >> >> I've got a couple of DEC QBUS boards (including a quad SLU) for which >> configuration is set by wire-wrap jumpers. I don't have a wire-wrap tool, >> and have found that trying this by

Re: DEC AXV11-C analog board

Are you 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 wha

Re: DEC AXV11-C analog board

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 is complete.  I wonder if this means the A/D chip is OK but something else, like the multiplexer chip or gain amp is fried. On 2/6/2022 12:33 PM, Jerry Weiss via cctalk wrote

Re: Using tu58fs with RT11 5.7

On 5/5/22 8:30 PM, Douglas Taylor via cctalk wrote: 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 d

Re: QIX game on PDP-11

> On Mar 28, 2017, at 12:09 PM, Ethan Dicks via cctalk > wrote: > > On Tue, Mar 28, 2017 at 12:35 PM, Henk Gooijen via cctalk > wrote: >> >> Hi PDP-11 game players 😊 >> >> I found that the famous QIX game was ported to the PDP-11 !! >> See http://imgur.com/a/gtPfh > > I don't know which PDP

Re: If C is so evil why is it so successful?

> On Apr 13, 2017, at 3:24 PM, Chuck Guzis via cctalk > wrote: > > On 04/13/2017 12:30 PM, Rich Alderson via cctalk wrote: >> From: allison Sent: Wednesday, April 12, 2017 3:18 PM >> >>> BASIC, why is that the most universal language implemented on >>> nearly every micro and many other systems

Re: If C is so evil why is it so successful?

> On Apr 13, 2017, at 9:42 PM, Chuck Guzis via cctalk > wrote: > > On 04/13/2017 05:47 PM, Jerry Weiss wrote: > >> Then my dad got transferred to Chicago and that high school had >> “access” to IITRAN. By access, that meant punching cards, and >> waiting for

Re: Bitsavers size

> On Apr 21, 2017, at 12:24 PM, Rob Jarratt via cctalk > wrote: > > > >>> My back of the envelope calculation comes to approximately >>> 4 million miles of paper tape. >> >> I think you're out by a factor of 10 267*10^9 bytes, divide by 10 as >> there are >> 10 bytes to the inch on paper

Re: Extracting files off “unknown” 8 inch disks. Any thoughts…

If these are from a VAX, could they be microcode disks for a 11/780? There was a RX01 attached via a LSI-11 as console. Or they could just be disks used for data exchange. They would be in another DEC OS file format, rather than ODS2. Jerry Weiss j...@ieee.org > On May 4, 2017, at 4

Re: Extracting files off “unknown” 8 inch disks. Any thoughts…

17 at 8:50 AM, allison via cctalk > wrote: > >> On 05/05/2017 03:39 PM, Fred Cisin via cctalk wrote: >>>>> Terry is doing it for fun; we can't expect the others to. >>> >>> On Fri, 5 May 2017, Bill Gunshannon via cctalk wrote: >>>> I would. :-) Or maybe for beer. >>> >>> I doubt that Allison will want to underbid THAT! >>> >>> >> Free beer?!? No, no,no... >> >> Allison >> Jerry Weiss j...@ieee.org

Re: Extracting files off “unknown” 8 inch disks. Any thoughts…

> On May 5, 2017, at 5:13 PM, Jerry Weiss wrote: > > >> On May 5, 2017, at 4:58 PM, Terry Stewart via cctalk > <mailto:cctalk@classiccmp.org>> wrote: >> >>> In case not everyone noticed, but Terry's already given up on this >> >>

Re: Extracting files off “unknown” 8 inch disks. Any thoughts…

-11 is also $. > > Either way the save command under VMS will have defaults for the device > target > and that a lookup on the Orange or Grey wall (manuals). > > Allison > > > On 05/05/2017 06:26 PM, Jerry Weiss via cctalk wrote: >>> On May 5, 2017, at 5:13 PM

Re: On Topic?: Hamvention

> 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 > wrote: > >> Is anyone going to Hamvention this weekend? >> > > I'll be there, for the first time! I don't know what to expect with the > flea market, but am hoping ther

Re: Help identifying UNIBUS PDP-11 CPU upgrade

> On Jun 28, 2017, at 2:35 PM, Josh Dersch via cctalk > wrote: > > On Wed, Jun 28, 2017 at 11:02 AM, Noel Chiappa via cctalk < > cctalk@classiccmp.org> wrote: > >>> From: Josh Dersch >> >>> I pulled the ... bootstrap boards from slot 3 ... The BOOT button >>> causes the RUN light to momentari

Re: Help identifying UNIBUS PDP-11 CPU upgrade

> On Jul 1, 2017, at 1:08 AM, Mattis Lind via cctalk > wrote: > >> Right, that's what's confusing me. I can't work out what you could possibly >> be cabling to, on the new CPU board! >> >> Those two connectors on the M7859 are used only with the 11/34, not the >> 11/04 >> (the cable from the M

Re: Help identifying UNIBUS PDP-11 CPU upgrade

> On Jul 1, 2017, at 10:59 AM, Noel Chiappa via cctalk > wrote: > >> From: Jerry Weiss > >> So it would appear the upgrade board makes provisions for both >> situations. > > I'm not sure that the two situations that the upgrade board supports are in

Re: Computer Design & Applications Inc. MDP-3B/C

> On Jul 11, 2017, at 3:40 PM, Mattis Lind via cctalk > wrote: > > This was part of a PDP-11/34 system for radiation dose measurement at a > hospital. > > Is it something general or very special purpose? > > https://i.imgur.com/rTAzl9o.jpg > https://i.imgur.com/vhPdvi7.jpg > https://i.imgur.c

Re: PDP-11: DR11-C to FPGA or 1284?

> On Aug 1, 2017, at 2:50 PM, Mattis Lind via cctalk > wrote: > > 2017-07-31 21:05 GMT+02:00 Fritz Mueller via cctalk : > >> >>> On Jul 31, 2017, at 11:30 AM, Bill Gunshannon via cctalk < >> cctalk@classiccmp.org> wrote: >>> >>> Well, I'm confused now. What do 16 bit paralel and ethernet ha

Re: PDP-11: DR11-C to FPGA or 1284?

> On Aug 1, 2017, at 7:32 PM, Fritz Mueller via cctalk > wrote: > > On 08/01/2017 05:27 PM, Jerry Weiss wrote: >> If you install the DELUA, don’t forget there is TCP/IP support for RT11 from >> Alan Baldwin at http://shop-pdp.net/rthtml/tcpip.htm. > > Hi Jerry

Re: WTB: RX02 Floppy Disks

> On Aug 3, 2017, at 4:28 PM, Ulrich Tagge via cctalk > wrote: > > Hi All, > All my 8" SSDD /SSSDdisks are non formatted, which was the reason for my > initial troubles. > Nevertheless, my IBM System /23 (Type 5324) can format disks in three > different formats: > > _1. IBM System /23 Format_

Re: WTB: RX02 Floppy Disks

> On Aug 4, 2017, at 1:09 PM, Ulrich Tagge via cctalk > wrote: > > Hi Jerry, >> You’ve made pretty good progress. > Yes with the right input and help this can happen. ;-) > And all the help is much appreciated! Glad to share. >> >> If you haven’t already, Google for and look at the manual fo

Re: PDP-11/84 Bootstrap for TSV05 (Dilog DU142)

> On Aug 9, 2017, at 1:58 PM, Ulrich Tagge via cctalk > wrote: > > Hi All, > I have some trouble to get the Bootstrap for an Dilog DU142 (TS11) Controller > running on my PDP-11/84. > The bootstrap on page 3-2 of the following documentation was used: > http://bitsavers.informatik.uni-stuttgart

Re: RX02 *.DSK convert to PDP11GUI Image format

> On Aug 13, 2017, at 11:00 AM, Ulrich Tagge via cctalk > wrote: > > Hi all, > > maybe someone can help. > I would like to install TCP/IP on my RT-11 system. > After a short search I have found the following, which I would use: > http://www.classiccmp.org/PDP-11/RT-11/freeware/decus11/110939/

Re: RX02 *.DSK convert to PDP11GUI Image format

> On Aug 13, 2017, at 12:59 PM, Ulrich Tagge wrote: > > Hi Jerry, > > I have tried with PDP11GUI, but the first message says "The image contains > only 505856 bytes, but disk has 512512 bytes". > I have written some disks, and have ignored this message, but none of them is > readable under RT

Re: RX02 *.DSK convert to PDP11GUI Image format

> On Aug 14, 2017, at 11:49 PM, Glen Slick via cctalk > wrote: > > On Sun, Aug 13, 2017 at 9:00 AM, Ulrich Tagge via cctalk > wrote: >> Hi all, >> >> maybe someone can help. >> I would like to install TCP/IP on my RT-11 system. >> After a short search I have found the following, which I would

Re: RX02 *.DSK convert to PDP11GUI Image format

> On Aug 15, 2017, at 2:33 PM, Don North wrote: > > On 8/15/2017 2:10 AM, Jerry Weiss via cctalk wrote: >>> ... >> >> As far as the DSK format, the files from at Alan’s site are logical >> disk images. Logical block 0,1,2,3 from from a DY sized volume s

Re: Champaign, IL to Iowa City, Iowa and back trip

> On Aug 19, 2017, at 11:08 AM, Jon Elson via cctalk > wrote: > > On 08/19/2017 10:03 AM, Tony Aiuto via cctalk wrote: >> A well priced PDP8 just went on sale in Iowa. I can't get it back from >> Champaign to NYC, but someone else might be able to snatch it. >> http://www.ebay.com/itm/Digital-E

Re: DEC ll/03 in 22 bit backplane

> On Aug 29, 2017, at 9:52 PM, Douglas Taylor via cctalk > 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, MXV11-AC with custom boot > ROMs and a 256KB MSV11-P memory board. T

Re: DEC ll/03 in 22 bit backplane

> On Aug 30, 2017, at 4:53 AM, Pete Turnbull via cctalk > 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

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