test-drb May 2015

test-drb@ccmp.vtda.org

199 participants
259 discussions

Data General Nova 3/12 and 6026 Tape Drive on craigslist

by dick＠tonkaland.com

I HAVE A 6026 TAPE FOR THE NOVA 312 SYSTEM IF YOU ARE INTERESTED.. We are located in the Minneapolis area. 952-715-1366 > At 04:06 AM 8/8/2014, Tommie Mademark wrote: >>Data General Nova 3/12 and 6026 Tape Drive in Tucson, AZ on Craigslist >> https://tucson.craigslist.org/sys/4591315871.html > > Looks like it's still available? > > http://tucson.craigslist.org/sys/5017009683.html > > - John > >

10 years, 10 months

Data General Nova 3/12 and 6026 Tape Drive on craigslist

by tommie＠fox.se

Data General Nova 3/12 and 6026 Tape Drive in Tucson, AZ on Craigslist https://tucson.craigslist.org/sys/4591315871.html /Tommie My Data General stuff: http://www.datageneral.org/

10 years, 10 months

MMJ Cabling between VAX4000/300 and VT420

by holm＠freibergnet.de

Hi guys, I have to make a console cable for the VAX4000/300 and an VT420 Terminal. How are the pins to be connected? One to One or with an rollover (1-6,2-5,4-3)? Regards, Holm -- Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, Freiberger Stra?e 42, 09600 Obersch?na, USt-Id: DE253710583 www.tsht.de, info at tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741

10 years, 10 months

oddball (XT PC-era?) keyboard - "dejag" etc controls

by jules.richardson99＠gmail.com

Rescued a keyboard from the dump earlier which is about the same style/size as an IBM model F, only a darker grey color (and not a buckling spring mech). Layout-wise, there are no F-keys at all, but keys on the numeric keypad are labeled things such as 'pan', 'curs', 'local', 'dejag', 'vern', and then there are eight status LEDs above the keyboard area (on-line, local, interp, busy, pan, cursor, dejag, 2nd). Does this critter sound familiar to anyone? I didn't see anything at the dump that it obviously belonged with, but I may return tomorrow and double-check, and knowing what I was looking for might be helpful. Of course it's possible that whatever it hooked up to is long-gone, or even had already been hauled off from the drop-off area for processing. cheers Jules

10 years, 10 months

HP-1000 and PDP computer parts available

by jnc＠mercury.lcs.mit.edu

> From: HP Friedrichs > I have .. a couple of PDP cards. > Please see my web site here for a complete list of parts: Here's the URL: http://www.hpfriedrichs.com/hpfparts/hpfparts.htm About the DEC cards: the M8043 is a DLV11-J (a four-port serial card), and the M8059 is an MSV11-L (up to 256KB memory card - but I'm trying to get that one). Noel

10 years, 10 months

MMJ Cabling between VAX4000/300 and VT420

by cctalk＠beyondthepale.ie

> > I have to make a console cable for the VAX4000/300 and an VT420 Terminal. > How are the pins to be connected? One to One or with an rollover > (1-6,2-5,4-3)? > As far as I understand it, pretty much all MMJ sockets are wired the same and the crossover between transmit and receive normally happens in the cable so you need the rollover. Even if this is not true in 100% of cases, it does appear to be true at least in the case of connecting terminals to hosts. Regards, Peter Coghlan.

10 years, 10 months

HP-1000 and PDP computer parts available

by hpfparts＠yahoo.com

I have a sizable collection of HP-1000 circuit cards, as well as a couple of PDP cards. They take up a lot of space in my workshop, so I'd like to find a home for them. Please see my web site here for a complete list of parts: The H.P. Friedrichs (AC7ZL) Homepage Thanks and 73,PeteAC7ZL | ? | | ? | | ? | ? | ? | ? | ? | | The H.P. Friedrichs (AC7ZL) HomepageThe Homepage of H. P. Friedrichs | | | | View on www.hpfriedrichs.com | Preview by Yahoo | | | | ? |

10 years, 10 months

RT11 / RSTS-E games

by keith＠saracom.com

Re: RT11 / RSTS-E games I obviously have done something wrong when moving files about etc. Hence depending on which way you get there, they may not link. For now all the games I have are available here: http://www.saracom.com/pdp11/pdp11.htm thanks Max ------------------------------ Message: 35 Date: Thu, 7 May 2015 19:42:52 -0400 From: Ethan Dicks <ethan.dicks at gmail.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: RT11 / RSTS-E games Message-ID: <CAALmim=yauqgpg7hc_4vN=1d41WtEA=MPS0P8=4wjNav-4c3TA at mail.gmail.com> Content-Type: text/plain; charset=UTF-8 On Thu, May 7, 2015 at 5:34 PM, Peter Coghlan <cctalk at beyondthepale.ie> wrote: > Lyle Bickley wrote: Ethan Dicks <ethan.dicks at gmail.com> wrote: This one? Appears to be a bad link :( Try http://pdp11.saracom.com/games/spcinv.zip [1] instead. Nice catch. Thanks! -ethan Links: ------ [1] http://pdp11.saracom.com/games/spcinv.zip

10 years, 10 months

Xerox 820 II Baltimore MD area

by davebrougham＠comcast.net

I have a Xerox 820-II with CP/M 2.2, monitor, dual disk drive, keyboard, daisy wheel printer, manuals, and cables. Wondering if anyone is interested in saving it from the dump, OBO. Bad news, I powered it up recently and the screen flickered and jumped for about 5 minutes before the wisp of smoke. The visible damage is a film capacitor on what looks like a power supply board in the monitor. Five years ago it powered up and was working as far as I could tell. Baltimore, Maryland area (USA). Not a list subscriber, will check list daily for a while, then weekly... Dave

10 years, 10 months

Vermont Research 5017

by t.gardner＠computer.org

Anyone have any literature on the Vermont Research 5017? It was a cartridge drive shipped from 1975 until 1985 probably rebadged and sold under some system manufacturer's label. Most likely the first HDD to use embedded servo in a production drive. Tom

10 years, 10 months

Winners for the Type 'n Run "code golf" contest on RetroBattlestations

by fozztexx＠fozztexx.com

I just posted the winners for the Type ?n Run contest for April on RetroBattlestations. Lots of very interesting programs that people submitted. Entries came in for a variety of computers like the IBM PC, the BBC Micro, the TRS-80 CoCo, and even one for the Texas Instruments CC-40! Check out all the entries, and maybe submit a program of your own! The Type ?n Run contest is an ongoing challenge with winners selected every month. http://redd.it/35ht9w -- Follow me on twitter: @FozzTexx Check out my blog: http://insentricity.com

10 years, 10 months

IBM 029 Card Punch and ASCII Machines

by COURYHOUSE＠aol.com

naw.... the card reader read punches and the reader driver made it readable on your machine! ! there were some for hp-2000 also and ho 3000 we would love to find one for the smecc museum here in az if anyone has an HP setup! Ed Sharpe archivist for SMECC In a message dated 5/10/2015 1:56:51 A.M. US Mountain Standard Time, robert.jarratt at ntlworld.com writes: I recall back in the late 70s using an IBM 029 Card Punch to punch cards for the DECSYSTEM-20. As I understand it, the 029 was an EBCDIC machine, but of course the DECSYSTEM-20 was ASCII. Does that mean there was an ASCII version of the 029, or that there was something in the card reader software on TOPS-20 that converted EBCDIC to ASCII? Regards Rob

10 years, 10 months

MacPlus video on YouTube

by terry＠webweavers.co.nz

Just another video showing one of my units for anyone who might be interested. I was lucky to get this one in such a clean undamaged condition. It did require some work to get it into shape for this video though. Bad solder joints on the analogue board...it's almost a standard feature of these machines, just like leaky caps in the later models! Anyway... https://youtu.be/v_m2sfcDDvg Terry (Tez)

10 years, 10 months

Old Control Data Tape Drives

by bpettitx＠comcast.net

Chuck Guzis wrote: Really great (7 track) drives; substantially over-engineered as compared to, say, a 65x drive. The 604 wasn't quite as fast as the look=alike 607, but nothing to sneeze at. If you've got 160A, 3000-series or 6000-series machine (and associated controller), it'd be a really great drive to have. --Chuck ____________________________________________________________ These were great tape drives. The 604 was 75ips versus 150ips for the 607. Both drives were 200/556/800 bpi 7 track units. The weight was a killer. But they were extremely reliable, easy to work on and easy to interface. Al has manuals on them (I know because I loaned them to him) and I have a lot spare parts if someone wanted to try to get them working. These would be a good choice for recovering old 7 track tapes. They used vacuum tensioning columns and vacuum capstans. So very little contact with the magnetic slurry side of the tape. Billy Pettit

10 years, 10 months

Old Control Data Drives

by bpettitx＠comcast.net

10 years, 10 months

360/50 microcode listing

by jnc＠mercury.lcs.mit.edu

> From: William Donzelli > We, the big iron collectors, do not share this information on any sort > of registry. We are a secretive bunch. Why is that, can I ask? I mean, it's not like a thief's going to come in and steal the thing (which is indeed the reason why collectors in other areas are often secretive) - it would take a truck and a crane, for most models! > From: Liam Proven > Have you read Lawrence Wilkison's account of rescuing an S360/20 in NZ > when he was a student? Cool story; thanks for the link - but the page says it was a 360/30. (The smallest 'real' 360 - the 360/20 was a lobotomized 'sorta' 360/.) Noel

10 years, 10 months

360/50 microcode listing

by aek＠bitsavers.org

CHM was able to obtain volumes 18-20 of the IBM 2050 drawings, which are the microcode charts and ROS dump. I got them scanned and uploaded yesterday to http://bitsavers.org/pdf/ibm/360/fe/2050 This was one of the things that I had been trying to locate for a while now.

10 years, 10 months

PDP-12 at the RICM

by michael.99.thompson＠gmail.com

The RICM rescued a very nice PDP-12 today. Pictures and details to follow. -- Michael Thompson

10 years, 10 months

PDP11GUI v1.46

by j_hoppe＠t-online.de

PDP11GUI is at v1.46 now. Among others I fixed an annoying bug, which prevented proper terminal output when running certain diagnostic paper tapes: Filling <NUL> chars were sometimes interpreted as backspace! Load from http://retrocmp.com/tools/pdp11gui As ever, any feedback is welcome, Joerg

10 years, 10 months

Plessey PM-D11/SPC-1 backplane documentation needed

by jnc＠mercury.lcs.mit.edu

> From: tony duell >> I have a Plessey PM-D11/SPC-1 backplane here > How many slots? I assume it's hex height. What (if anything) are the > power input connectors? 9; yes; it has the standard 9-pin connector as used on the 11/05-10, and the early /40s and /45s. (FWLIW, the documentation for the PM-F11 says that _it_ comes with either the same 9-pin connector power harness, or the harness with the newer 15-/6-pin connector pair, and gives part numbers for each.) The harness of this one is subtly different, though - instead of all fast-on tabs at the backplane end, there is a DuPont header on the backplane (looks like 10 pin), and a bunch of the pins on the large 9-pin connector are connected to that (not just ACLO and DCLO, but e.g. there are a pair which are connected to +5V, and another pair to ground (the latter two also go to fast-on tabs). > Is there any reason to assume it's not a clone of a standard DEC > backplane ... the 'SPC' part of the name suggests a Unibus peripheral > backplane Oh, I'm sure it's _some_ form of SPC backplane - it has the NPG jumpers from CA1 to CB1 on all 9 slots, for instance. And it has a bunch of wires running >from 1A/B down to the CDEF part, and then back from CDEF to 9A/B. And the NPG is routed from 1A down to CA1/CA2, and then back up to 9A. But I'm trying to figure out exactly what sort of SPC backplane it is. E.g. it looks like slots 2-8 _might_ be MUD (the signals from 1A/B are bussed across all those slots on A/B, over to 9A/B). But without documentation, or a lot of ohm-meter work... Noel

10 years, 10 months

Plessey PM-D11/SPC-1 backplane documentation needed

by jnc＠mercury.lcs.mit.edu

Hi, all, I have a Plessey PM-D11/SPC-1 backplane here, and I'm interested in finding some documentation for it. I looked online, but couldn't find anything? This site: http://www.compsy.de/gebr-vax/repman_verl.htm seems to list one, and does apparently 'rent' documentation, but I'm not sure they're ready to rent something to someone on another continent. (If someone in Europe can assist in dealing with them, I'd be extremely grateful.) I do have a manual for the vaguely similar PM-F11/SPC backplane (which I would be happy to scan promptly if anyone has a need for it; otherwise, it will get scanned when I obtain a round tuit), and that, plus an ohmmeter, would probably allow me to eventually figure out the PM-D11, but I figured I'd look and see if I could save all that work, and put it into something else... :-) Noel

10 years, 10 months

Z-machines for PDP-11 (was Re: RT11 / RSTS-E games)

by ethan.dicks＠gmail.com

On Fri, May 8, 2015 at 5:43 AM, Johnny Billquist <bqt at update.uu.se> wrote: >> The Z-machine for RT-11 that Infocom released only handled v3 images. > > I only knew of the V1 version, for the original Zork I. I never knew that > Infocom released anything past Zork I for RT-11. I can't seem to find the definitive catalog, but I know there were folio packaging of several of the titles available for sale. I saw Starcross hanging on the wall at the Digital Store in Columbus, OH (back when there _was_ a brick-and-mortar store), and I am reasonable certain there were others, definitely more than just the V1 Zork. >> You can run a v3 game comfortably in 48K bytes... >> As for the PDP-11, one _could_ write a split-I&D interpreter for >> larger games... > > Um? Where have you been? ZEMU have been around for about 15 years now. It > runs all V1 to V8 games, and runs under both RT-11 and RSX. I think I forgot ZEMU has support past V5. My apologies. > On MIM:: (once more) > .zem/li/sy > -- System games -- > Game Release Serial Inform Z-Machine > ADVENT 5 961209 6.05 5 > ZDUNGEON 13 040826 6.14 5 :-) > ZTREK 1 000229 6.21 5 Ooh... that's right... there's an implentation of Star Trek on the Z-machine. I'll have to go grab that to see which version it's based on. Personally, I'm used to the one that was in Dave Ahl's "101 Computer Games", the one that has the short range scan that represents each item with up to three chars and empty locations with all spaces (as opposed to a simple grid with 1 char per filled spot and, ISTR, a '.' for empty locations). When I get the opportunity (later this weekend I think) I will check my backups for the RSTS/E mod I was mentioning. If the RT-11 ZEMU doesn't compile on RSTS/E as is, it should be a 1-line mod. -ethan

10 years, 10 months

RT11 / RSTS-E games

by john＠yoyodyne-propulsion.net

Anyone got any RT11/RSTS-E games? I'm back on with my project to recreate the PDP-11 that I goofed around with when I was a kid. (Its accessible via the bbs... bbs.cortex-media.info 4223) I have 2.52 version of Dungeon, and a version of Star Trek. Anyone got anything else? I'm still looking for Oregon Software Pascal as well... Thanks! Mark

10 years, 10 months

360/50 microcode listing

by jnc＠mercury.lcs.mit.edu

> From: Jon Elson > Well, first, rotary converters draw a LOT of imaginary power (in other > words, they have an awful power factor) and so the line current can > become MUCH higher than you would expect. > ... > We tried to rig up a phase converter scheme to run the motor-generator > set on a 370/145 in a guy's house, and it did NOT go well. he only had > a 60 A 240 V service, and the imaginary current was over 60 A! Had to Google 'imaginary power'... Not a lot of experience with high-power AC stuff! :-) ('Imaginary power' is probably not the best term to use, because there are actual currents involved; I like the 'reactive power' name better.) The article I read said that in reactive load which is high in inductance (which is, I assume, the source of the high reactive load in rotary convertors - or am I confused - a common happening, I concede :-), judicious application of capacitance can reduce the reactive load. Why isn't this used with rotary convertors to reduce their reactive load? Any idea what the active and reactive powers/currents were in that attempted installation? Noel

10 years, 10 months

MIL Code conversion help

by hp-fix＠xs4all.nl

I got some JM38510/052528CB ic's and want like to know what type it is. Tried the usual places but can't find the number, someone who can help? -Rik

10 years, 10 months

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test-drb May 2015