- test-drb@ccmp.vtda.org - classiccmp.org

by jolminkh＠nsw.bigpond.net.au

I've found a box with 2 x 8" floppy drives. . . . external to some unknown computer. The box is a Panasonic JB3038P and inside are 2 X JA751 drives. The drive connectors and the cable coming out of the box are all 50 pin, exactly like an internal SCSI cable. Unfortunately it isn't recognised by a SCSI controller, at least not without fiddling with parity and stuff like that. Does anyone know what this might have been for? SCSI 8" floppy drives would have been great cos I don't think I'm ever going to find a compaticard ! Hans

26 years, 7 months

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PS Pinout needed

by af-list＠is1.wfi-inc.com

Hi, Someone a while back was going to check out the PS pinout for an HP Windows Client 425SX, but I lost the original message to remember who... Does anyone have it handy? The scratched sticker on the back looks like it says 20V~, but it's pretty scratched. The connector is 4 prongs in a row... Thanks, Aaron

26 years, 7 months

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Great Saturday

by jrkeys＠concentric.net

Yesterday was a pretty good day for me, as I found some of the following: 1. Tomy robot at thrift for $2.80 need some work but could not pass on it, too low a price. 2. Mics Grid items. 3. Nice Apple Mac items most not 10 years old yet. 4. 12 AMIGA software packages NEW and Unopened for the 500/1000/2000 series. 5. Various cards for the Apple II, IIplus, and IIe with some manuals. 6. About 30+ books from Apples to Next machines. 7. A Travel Data Systems 28 computer complete and new in box for $2.50 at thrift. 8. Koala pad for Apple II. IIplus, IIe 9. Something TG Products in Planto TX has mounting for 6 chips each with it's own switch ????? And many more items not yet 10 years old. Keep on Computing John

26 years, 7 months

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Argh!!! PDP-8/m Memory

by healyzh＠aracnet.com

Well, with the aid of the "PDP-8/e Simulator" for the Mac, I figured out how to use the front panel, and execute the "Initial Operating Check". Load it into the real PDP-8/m, and start it. Wait a minute, that's not what it's supposed to be doing... After a bunch of investigating, and going back to the "PDP-8/e Simulator" to figure out how to display the contents of memory, I discover that there is nothing in memory :^( Based on the fact I can see what I'm trying to enter when I've got the switch set to 'MD' and hit Deposit, it sounds to me, suspiciously like I've got a bad 4K Core set. Anyone have any suggestions on something to check? Zane | Zane H. Healy | UNIX Systems Adminstrator | | healyzh(a)aracnet.com (primary) | Linux Enthusiast | | healyzh(a)holonet.net (alternate) | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | and Zane's Computer Museum. | | http://www.aracnet.com/~healyzh/ |

26 years, 7 months

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More free (not quite classic) stuff...

by af-list＠is1.wfi-inc.com

Sorry to keep deluging the list with modernish freebies, but I figured there might be a few list people interested... Does anyone want a 486SX/33 base in a small box? It's actually the bottom half of an HP Scanjet 4si (so, same form factor as an HP IIP scanner). It's got 2 ISA/1 VLB slots...just perfect for a nice, small LRP router... (I'm using an identical one for that at home) Aaron

26 years, 7 months

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new hamfest additions

by SUPRDAVE＠aol.com

pretty good hamfest in benson, nc probably because the greensboro one next month is cancelled. picked up 2 tandy model 100s and 1 kyotronic 85 (same thing) for $15, a mac adb mouse, XGA2 card still in box and other pc junk. unfortunately, had to pass on a coco2 with disk drive and a really clean PS/2 77. it breaks my heart, but you really cant save everything... DB Young Team OS/2 --> this message printed on recycled disk space view the computers of yesteryear at http://members.aol.com/suprdave/classiccmp/museum.htm (now accepting donations!)

26 years, 7 months

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Supermac Technology Enhance card for Mac 128K

by jlewczyk＠his.com

I just came into ownership (well, I've have it a couple of days) of a Supermac Technology Enhance card that was an internal upgrade for a Mac128K. I need some information on this card, such as feature set, connectors, etc. Basically I need a manual, a copy of same, or to communicate with someone with experience with this vintage card and a Mac 128K. Anybody know about it? Thanks, John jlewczyk(a)his.com

26 years, 7 months

2
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Semi-OT: Running CAT5 Cables

by CLASSICCMP＠trailing-edge.com

>Probably should make one thing clear here, as long as it's just the one room >and the garage, I plan on simply running one cable and connecting a hub in >the house to a hub in the garage. It's fallen a bit out of fashion in the past few years, but 10Base2 (50-ohm RG58 Coax) is particularly useful for the "home runs" between twisted-pair hubs. Many twisted-pair hubs come with Coax connectors for just this purpose. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

26 years, 7 months

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Panasonic 8" Floppy Drive

by CLASSICCMP＠trailing-edge.com

>> I've found a box with 2 x 8" floppy drives. . . . external to some unknown >> computer. >> >> The box is a Panasonic JB3038P and inside are 2 X JA751 drives. >> The drive connectors and the cable coming out of the box are all 50 pin, >> exactly like an internal SCSI cable. Unfortunately it isn't recognised by a >> SCSI controller, at least not without fiddling with parity and stuff like >> that. >Why on earth do you think it would be SCSI? The standard 8" floppy drive >interface (a de-facto standard defined by the SA800) is a 50 way ribbon >cable. I'd bet that's what you have. It *could* be SCSI, assuming a SCSI <-> SA800 controller is in the box with the floppy drives. These are found not too uncommonly on some Apollo and other early workstations. The ones that I've had to deal with were actually SASI. But, yes, 99% chance that it's just the SA800 interface cable. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

26 years, 7 months

1
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request (fwd)

by a2k＠one.net

This fellow emailed me looking for some DEC parts.. maybe someone on the list will be able to help him out. Kevin ---------- Forwarded message ---------- Date: Sat, 20 Nov 1999 21:40:35 -0500 From: jmccance(a)muskingum.edu To: A2K(a)ONE.NET Subject: request hi kevin got your name from the classic computer rescue list. hopefully you'll have some things that are surplus to you that you would be willing to sell. so here is my wish list; Dl11-E or DL11-W serial cards, 3 VS2000 12-meg mem, 4 VS40X 8-plane card for '2000 1 M8267 fp11-a /34a fpp 1 M8268 kk11-a /34a cache 1 ( my /34 has the M8265 and M8266 cpu) M8061 rlv12 rl-01/02 controller 1 M8017 dlve1 serial card 3 a unibus card that talks mscp on one side and st412/506 on the other. or, a unibus card that talks mscp on one side and scsi on the other. yea i know, i want the moon;-} also need the pin-out info for a DR-11C (M7860) and a AR-11 (M7809), or tell me where on the net this can be found. if you have any of this available for sale, please quote prices, either per item or bundled as a lot and i'll see what can be afforded. thank you for your consideration of this request. reguards john john w mccance cambridge oh 43725 740 439 0182 home jmccance(a)muskingum.edu -------------------------------------------------------------------- | i am in no way affiliated with Muskingum College. | | The College is a community oriented school and the nice folks | | at the computer center make available login accounts for | | people in the community to have some access to the internet. | | Many Thanks to them. | |__________________________________________________________________|

26 years, 7 months

1
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FW: MicroVax I wont boot

by truthanl＠oclc.org

> Subject: MicroVax I wont boot > > Here is the Capture File out Hyperterminal: > > > MICROVERIFY STARTED > > MICROVERIFY PASSED > > 00000000 03 > ATTEMPTING RESTART > > RESTART FAILED > ATTEMPTING BOOTSTRAP > > %BOOT-F-ERROR, None of the bootable devices contain a program image > 000008B3 02 > > It leaves me with a >>> (prompt) > that seems to accept one character commands > Is htere a way to send it a file that will direct it to Disk or Diskette? > > Several years have passed since I 've had this thing running and I believe > I used to be able to list Devices. > > What Have I forgotten? Is there a generic default boot device target? Or > do I need to specify one? > > Any reference Docs online to boot uVAX I? > > Larry Truthan > truthanl(a)oclc.org > >

26 years, 7 months

1
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IBM 5120 power question

by ss＠allegro.com

Hi, I just received an IBM 5120, from Germany. The back says 200/210/220 volts at 50 Hz. However, opening it up and looking at the power supply reveals enough choices in wiring that I suspect the power supply might already be capable of being easily adapted to 110/60 Hz ... does anyone have any familiarity with this system? Otherwise, I'll be visiting Fry's for something (transformer?). thanks, Stan Sieler sieler(a)allegro.com Stan Sieler sieler(a)allegro.com www.allegro.com/sieler/wanted/index.html www.allegro.com/sieler

26 years, 7 months

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Want To Buy HP 3000/928 W/100 User License!!!!

by mikeford＠socal.rr.com

I saw this in a newsgroup and I am just passing it on. >In article <19991112094324.07490.00000376(a)ng-fg1.aol.com>, >rborliniwm(a)aol.com (RBorlinIWM) wrote: > >> Want To Buy HP 3000/928 W/100 User License!!!! >> >> Bob Borlin >> 440-449-8006

26 years, 7 months

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New Collector in Need of Help!

by dylanb＠sympatico.ca

Did you ever pick up the Univac? -----Original Message----- From: Owen Robertson <mrdos(a)swbell.net> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Wednesday, November 03, 1999 11:06 PM Subject: New Collector in Need of Help! I am kind of new to the collecting game. I am in need of some help. I need someone to tell me where I can find older and larger computers. I have a lot of micros, but now I am looking for bigger game. I have decided to focus my collection on older mainframes and minicomputers. Can anyone point me to sources? I found a local business that has older and larger computers, but the owner and I didn't hit it off. It's really a shame. He had some great stuff. While I was there I had to watch the workers scrap what looked like a very old classic control panel. Also, someone recently offered me a UNIVAC System 80. Anyone know anything about it? Is it something worth having in a collection?

26 years, 7 months

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11/60 Rescued!

by mbg＠world.std.com

>It is with pleasure that I report that the pdp-11/60 in Vancouver has >been rescued! Great news... kudos to all involved... score one for our side... :-) Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+

26 years, 7 months

1
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Cleaning Boards / Contacts

by healyzh＠aracnet.com

OK, I've got most of the boards out of the PDP-8/m, and some of them are rather in need of cleaning. Anybody have any recommendations? I don't remember what the suggestions were the last time this came up, I just remember that my method (Pink Pearl Eraser) was recommended not to use :^) Zane | Zane H. Healy | UNIX Systems Adminstrator | | healyzh(a)aracnet.com (primary) | Linux Enthusiast | | healyzh(a)holonet.net (alternate) | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | and Zane's Computer Museum. | | http://www.aracnet.com/~healyzh/ |

26 years, 7 months

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Old plasma display

by truthanl＠oclc.org

I have data sheets on Sharp ( electronics corporation ) LCD units circa 1988. They Show a LM64015T Display which was also 640 X 400. Its logic was 5.0 V (MAX 6 V) and the Supply (LCD) drive is Typical -21V (Min- 32V. Max -14V) It was driven with a Yamaha V6366 display controller. There is also a TDK CXA-1301 Inverter spec'd which provides CCFT backlight voltage ( Typical 1000 Vrms @ 400hz) The Sharp LM64015T display is a 12 pin device, Pin 1 labelled S for Scan Start up high Pin 2 CP1 (clock pulse 1) Input Data latch (High to low) Pin 3 CP2 Data Input Clock Signal ( High to low) Pin 4 open Pin 5 NC Pin 6 Power supply for Logic Pin 7 Gnd potential Pin 8 Power for LCD Drive with pins 9-12 being display Data, D0 - D4 respectively - (High on)(Low off) This gives an Idea of typical voltages and interfaces of the era. This may not apply to the Specific Matsushita device you asked about. It points out that there are often Display Controllers Like Yamaha V6366 and High Voltage inverters like TDK CXA -1301 ( 100V- 1000V) for backlighting. Sincerely Larry Truthan > -----Original Message----- > From: Stefan Boss [SMTP:stefan.boss@gmx.net] > Sent: Friday, November 19, 1999 11:56 AM > To: Discussion re-collecting of classic computers > Subject: Old plasma display > > Hello > I have an old Matsushita plasma displays (from a Compaq PC I think). > Do you have any information about this (or a similar) display... any > datasheets about data communication or the power connector pins??? > > The display has the numbers > MD400F640PD5 > 7.0.13 C:60963 > > I'm very glad if you could help me... > > yours sincerely, Stefan > > > PS: I'm a student from Switzerland and I might be interessted to write a > assembler-program with my microcontroller system (MC68HC11G5) for the > display. > > Reference: > http://www.heydon.org/kevan/mlists/classiccmp/1998-08/msg01244.html > > > -- > Sent through Global Message Exchange - http://www.gmx.net

26 years, 7 months

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Samuel Caldwell's book: Switching Circuits and Logical Design

by jdliles＠earthlink.net

I am Samuel Caldwell's grand-daughter and would be very interested in your copy of his book. Every copy I have ever found has been well used and is in poor condition. -- Jennifer Dowling Liles

26 years, 7 months

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Tandy 2000

by leucoplast＠seanet.com

I'm also having the same problem on my 2000. I have a feeling that it's the floppy controller chip(s) but I'm not sure yet. At first I thought it was a bad power connector but they all check out OK. Then I replaced the FDs with no change. I even replaced the motherboard with a spare that I had but all that ever comes up is the "256k memory" line, and that's all. Still, I'm only making guess' here. I should say that I aquired my two machines, one with a hard drive, for free but they were not tested. I had to have a video cable made before I could see what was going on with the system, so I'm not entirely sure of what is supposed to happen on bootup. I had the same problem with a Tandy HX a while back, and that turned out to be a bad memory chip that was locking up the system when it ran it's memory test. I've been tinkering with my 2000 off and on as I get new solution ideas but so far, I'm stuck too.

26 years, 7 months

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Cleaning Boards / Contacts

by allisonp＠world.std.com

<OK, I've got most of the boards out of the PDP-8/m, and some of them are <rather in need of cleaning. Anybody have any recommendations? I don't <remember what the suggestions were the last time this came up, I just <remember that my method (Pink Pearl Eraser) was recommended not to use :^) Dishwasher, bake at 160-170f until dry. All but the core plane. the core plane is fragile and the water jets would blow the mat away. The PDP-8F I have got that treatment. Vacuum the case well. Allison

26 years, 7 months

1
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Tampa Hamfest

by rigdonj＠intellistar.net

I just got back from the Tampa hamfest. Besides all the odds and ends, I picked up a HP 9845 claculator, three old HP 2623 terminals, two HP 9885 8" disk drives, a HP 9878 system expansion box and 6 or 7 interfaces for the 9845. Some of the intefaces are brand new and haven't even been unwrapped. Also picked up a HP 7245 Thermal Plotter. A very strange item! It prints on thermal roll paper using a full width printhead but it does excellant printing and plotting. Other items of interest include a HeathKit ET-3100 digital trainer with manual, three IBM computer technical reference manuals (IBM convertable Vol I and II and PS/2 model 30) and a Tektronix 178 linear IC tester. I also found another manual for my Tektronix 4051 computer. This one covers the hardware for the disk drives. Also got some kind of I/O box for the 4051, I don't know exactly what it is yet. Also got four new manuals for a Tektronix digital trainer. I left behind a FREE & operable PDP 11/34 with expansion cabinet. I'm not real interested in DEC stuff and I didn't have room to haul it or to store it. I barely missed getting a very clean HP 45 calculator in the box with charger for $5. But a close friend of mine that's also a big HP fan got it so I'm not too upset. All in all, a pretty good hamfest! Joe

26 years, 7 months

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PDP-8/m !!!!

by healyzh＠aracnet.com

I finally have a PDP-8/m. On the 1st of November someone that knows I'm looking for one notified me of a Internet auction that was ending in about 4 hours, and I was able to get the winning bid of $356 in (thankfully this wasn't on eBay). M8330 -- Timing board (system clock) M8310 \_ KK8E CPU control M8300 / KK8E CPU registers M847 -- MI8E Hardware Bootstrap Loader. M848 -- KP8E Power fail and auto-restart. M849 -- shield to isolate memory from CPU M8650 -- KL8E RS232 or current loop serial interface. G104 \ H220 > MM8E 4K memory (H220) G227 / M8320 -- KK8E Bus terminator It arrived today, and I just unboxed it a few minutes ago. As a result you can see the web page with pictures at the following URL: http://zane.brouhaha.com/healyzh/PDP8m.html Now, I've got to figure out where I'm going to put it for the time being. I also need to figure out what a couple of the cables that were included are for. Unfortunatly I think the console interface is a 20ma interface. However, there is a Canon plug that I've no idea what it goes to. I'll be cleaning it up before I try and fire it up. Unfortunatly I've got to leave for work in a little over an hour so that will have to wait till tomorrow. Also, the module list that I announced yesterday has grown in size considerably and now includes at least a few parts from the following systems: PDP-4 PDP-5 PDP-6 PDP-7 PDP-8 PDP-9 PDP-10 PDP-12 PDP-14 Programmable Controller PDP-15 PDP-16 The YADML can be found at ftp://zane.brouhaha.com/pub/ModuleList.txt Zane | Zane H. Healy | UNIX Systems Adminstrator | | healyzh(a)aracnet.com (primary) | Linux Enthusiast | | healyzh(a)holonet.net (alternate) | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | and Zane's Computer Museum. | | http://www.aracnet.com/~healyzh/ |

26 years, 7 months

3
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IBM 5120 power question

by CLASSICCMP＠trailing-edge.com

>> Ah... Most 8" drives do have mains-powered induction motors, so the >> frequency does matter. I've seen reference to the odd drive with a 24V DC >> spindle motor, but I've never seen an actual drive like that (although I >> am sure they exist). If the motor 'looks' like a mains motor, has a large >> capactor can hung off it, and seems to have mains wiring going to it, >> then it's likely to be a mains motor. >The only 24V DC spindle motor that comes to mind at the moment was on >the Tandon 848-02 DSDD half-height 8" drive, Tony. In addition to those Tandons, there are also NEC and Mitsubishi HH 8" floppy drives with 24VDC spindle motors. For a challenge, how 'bout the other way around: what 5.25" floppy drives have 120VAC spindles? (If any!) -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

26 years, 7 months

1
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Found in my old DEC stuff, S1022 manual

by wpe101＠banet.net

I came across a box of stuff from my old DEC days, and one of the things in it was a xerox output copy of the manual for System 1022 Data Management Software for TOPS-10. Is it, or any info from it, of interest to anyone? Will

26 years, 7 months

1
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pdp-11/60 Semi-Rescue

by mbg＠world.std.com

>Didn't know an 11/60 was going on the trash block; those systems are >RARE. And they were one of two 11's that could actually be microcoded in >the field... (the other was the 11/03 with the WCS11) I've not seen or heard of one since the one I used to use at DEC... I've always wanted to have one to play with the WCS myself... I think I have some development code somewhere for it... If this cannot be saved, it will be a tragedy... Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+

26 years, 7 months

1
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pdp-11/60 Semi-Rescue

by mbg＠world.std.com

>I am, however, going to save the CPU cards, any other cards, and the >backplanes. I will also try to save anything else that can be readily >removed from the machine. If you can take some tools, I would appreciate your getting the front panel from it... >I did try to find a taker for this beast, as you'll recall from the >lists, but unfortunately it's been almost a year and the potential takers >have not been able to get around to picking it up. He cannot wait anymore >and has arranged for a scrap metal dealer to pick it up this Monday. > >This is a sad situation, but at least I'll be able to save some of the >machine. I'll post to the lists with my results. This is sad... very sad... I wish I had space for it. I would take it in a second... Even without space, I would consider it, but there isn't enough time to arrange a rescue... Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+

26 years, 7 months

1
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New finds and some h-11 help

by allisonp＠world.std.com

<What are the commands available? And where can I find the boot sequences? <Which is kindofa moot point right now because I don't have an os disk. ;( CR, LF, P, /, R ODT is a very simple monitor for depositing, displaying memory and registers. If your serious about PDP-11s fine a copy of the Microcomputer handbook for one of the years in the range of 1976-9*! They are pretty common and essential in the informationof the PDP-11 family. <And what are all the device names? Depends... Allison

26 years, 7 months

1
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New finds and some h-11 help

by allisonp＠world.std.com

<>Watch out for the PS, the heath design was a switching low voltage design <>and tended to fry itself. < <I don't suppose you have a modification to prevent this do you? :) Don't substitute on parts and if all else fails use an H780. Allison

26 years, 7 months

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PDP-11 Freeware CD's under emulators

by CLASSICCMP＠trailing-edge.com

Zane wrote: >Of course it would be nice to mount the RT-11 Hobbyist software CD on a >emulator running the Hobbyist RT-11, and without MSCP, I don't believe that >is possible. The best way to do this is with John Wilson's full E11, where you can directly mount the high (RT-11 disk structure) partitions of the CD-ROM. Of course, this requires the commercial version of E11 for large disk MSCP support, and also requires a regular (non-hobbyist) RT-11 license to run (as the hobbyist RT-11 license is only good on the Supnik emulator.) I think it also requires a SCSI CD-ROM (though I could be wrong and it'll work fine with an IDE CD-ROM.) The next best way to do this is free, and doesn't require commercial anything, just the Supnik emulator running on your system and a copy of RT-11 in compliance with the hobbyist license. If you look in the RT-11 freeware CD at the ISO9660 partition, you'll see that each and every piece of software on the CD is represented as a logical .DSK file. In particular, in the /dsk directory, you'll find 185 logical disks of freeware, split up between the SIGtapes, the DECUS 11-xxx entries, and the "other" stuff. These can be mounted as any sort of volume you like under the Supnik emulator, as long as the emulated device is large enough to hold the contents of the .DSK (i.e. you can use an emulated RL02 to hold any virtual .DSK up to 20480 block.) Then you're home free, and have "direct" access under the emulator to all the contents. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

26 years, 7 months

2
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PDP-10's (was Re: (from usenet) PDP-11 emulator available)

by ethan_dicks＠yahoo.com

--- Megan <mbg(a)world.std.com> wrote: > Isn't XKL doing -10 support? Dunno about that, but I do know that at least one employee of XKL has a copy of Zork for the -10 cuz I've run it (I used it to verify my port of the ancient MDL code to Inform... http://penguincentral.com/retrocomputing/zdungeon/ ...for Z-machines the world over, from the C-64 to the Palm Pilot). -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.com

26 years, 7 months

1
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(from usenet) PDP-11 emulator available

by ethan_dicks＠yahoo.com

--- "Zane H. Healy" <healyzh(a)aracnet.com> wrote: > However, I'd be interested in hearing peoples results with the originally > mentioned emulator. Bob Supnik's is quite excellent with better support > from the looks of things, but it looks as if the Begemot PDP-11 emulator > will do a couple things it won't (multiple terminals and DEQNA emulation). I helped Bob Supnik debug the RP driver for his PDP-11 emulator (because 2.9BSD didn't used to install) and can say that I'm happy with it. My BSD images are from a *real* 2.9BSD 16MT9 that I got about 15 years ago, and, once the RP driver was fixed up, things worked real smooth. While I have nothing against Ersatz-11, I don't need a PDP-11 emulator bad enough to pay for it. YMMV, -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.com

26 years, 7 months

1
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What's RT-11's device name for TMSCP tapes?

by DSEAGRAV＠toad.xkl.com

[This line is here to make listproc stop bugging me] The subject says it all. (SUBJECT is one of listproc's commands and so it can't be on the first line of the message. ^_^) -------

26 years, 7 months

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Classic Hardware Documentation Project

by foxnhare＠jps.net

> Subject: Re: Classic Hardware Documentation Project > Date:Thu, 18 Nov 1999 18:11:09 -0500 > From: "Jason McBrien" <jbmcb(a)hotmail.com> > > Maybe not public domain, but I don't think, for example, Commodore (or > whoever owns them now) would mind posting the schematics for the C64, or if > someone were to scan in the owners manual for a TI/99, or a VAX 11/750 > technical manual. Otherwise, if a company goes belly-up, who owns the > copyright then? The disclaimer I'm looking to write acknologes all > copyrights, and would allow the holders to request that I take them down, as > long as they can proove that the copyright is still valid and that they own > it. Between Project 64 and the Funet.Fi Commodore archive I think the 64 is probably one of the best documented 8-bits on the net (and some of the other Commodore 8-bit models as well). I think there have been some issues with the games (like Hasbro who has been re-vamping old Atari titles and threatining some of the games sites), but not much mention from the original Commodore hardware community. :/ Ref: http://project64.c64.org/ http://www.funet.fi/pub/cbm/ -- 01000011 01001111 01001101 01001101 01001111 01000100 01001111 01010010 01000101 Larry Anderson - Sysop of Silicon Realms BBS (209) 754-1363 300-2400 baud Commodore 8-bit page at: http://www.jps.net/foxnhare/commodore.html 01000011 01001111 01001101 01010000 01010101 01010100 01000101 01010010 01010011

26 years, 7 months

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(from usenet) PDP-11 emulator available

by mbg＠world.std.com

>"Bob Supnik's is quite excellent with better support >from the looks of things" Bob's emulator is quite good, but a drawback is that it doesn't have MSCP emulation or Ethernet emulation. E11 (Ersatz-11) has both. I believe that Viking does as well. I don't know about Charon... >What is the status now of Bob's work, now that he has left DEC? >I thought I heard that Megan was working on 10 support, for example. Me? 10 Support? No... I'm simply working on trying to get my KS10 operational, while working off and on on a pdp-10 emulator, using Bob's package as a base. I have been working toward a KA10 emulator with conditionals (where I understand things enough) to do the right thing for a pdp-6 or a KI, and for those instructions I have done, I'm getting almost 600k emulated instructions per second (eips?). But I don't have the PI system working at all, and there are some issues about instruction processing I don't have down yet... Daniel Seagraves is working on a KL emulator, and actually has some code running, it appears (at least he has tried to boot ITS and it has done a little of the boot process). There are some other efforts around the net to produce various -10 emulations... I'm also in the process of getting all the software I do have for the 10, currently on tapes, off to other storage with the help of Tim Shoppa (actually, I'm just supplying him with tapes, and he's doing the work... :-) Most recent mail from him indicates we appear to have almost a complete 7.03 distribution, parts of the 7.03A patchs and working on a 7.04 distribution. But as for 'supporting' this stuff... I was an okay -10 programmer in college... I mostly did -11 stuff. I'll never be anywhere near the level of the -10 gurus who wrote this code... so I would not presume to 'support' it. Isn't XKL doing -10 support? Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+

26 years, 7 months

2
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What's RT-11's device name for TMSCP tapes?

by CLASSICCMP＠trailing-edge.com

> What's RT-11's device name for TMSCP tapes? MU0: through MU3:, assuming that they are SYSGENed into existence, you're running a version of RT-11 modern enough to support TMSCP (5.4 or later), and the CSR's and VECTOR's for the MU devices are set up to match your hardware. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

26 years, 7 months

1
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(from usenet) PDP-11 emulator available

by mbg＠world.std.com

>"Bob Supnik's is quite excellent with better support >from the looks of things" Regarding my previous post... don't get me wrong, I mostly use Bob's emulators, especially since I'm doing my own emulator work using his code as a base... Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+

26 years, 7 months

1
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DEC and misc stuff available

by cfandt＠netsync.net

Here is a list of DEC gear I must get rid of. It's a sizeable part remaining of that Great Haul I had back in Summer '98. Setting out in our garage. Also, some miscellaneous items are listed at end. Absolutely no room to keep the machines as I must soon clear out a storage cubicle upon which I'm paying $62/month rent. I could certainly better use those bucks for paying bills and also want my radio items stored at home. Can't contact anymore -nor find thru searching to the best of my ability- the previous party who was interested. So it goes to the list. Come an' get it!: ** VAX 11/750 with a TU78 console tape cartridge (diagnostics? boot?) Was mainline system at the place I got all this gear from. Office had been closed since 1994 and equipment stored there. Owner decided to not renew his lease and had to get rid of everything fast (in the meantime, I discovered this and bought a truckload of goodies :-) Reportedly has VMS 5.3 or 5.4 plus several diff. language compilers on the RA81's listed next. Set of six TU78 cartidges with VMS 5.3 on them. ** RA81 in 40" rack (p/o the 750). ** TU80 tape with RA81 drive in 40" rack (p/o the 750). ** PDP-11/24 w/FPF11 (M8188) floating pt. option, two RL02's all in 40" cabinet. Cabinet is same physical size as the 750's cabinet (40" high, about same width & depth.) Console prompt okay but need to fix RL02 problem. ** PDP-11/34A in a 40" rack. Not complete. Old, early style, square-edged shaped metal programmer's panel. Not the stylized plastic shape most are. ** RL02, at least three units *not* including the two in the 11/24. Fault lights appear on two or three (yes, I checked them while hanging off my 11/34A with RL controller :-) ** RL01, one unit. Fault light, IIRC. ** RK07's, four units. One is known to come up without a fault. Another has rather noisy spindle bearing. Others Fault, IIRC. ** RK611 system unit for BA11 with all five boards. Came out of the 11/34A I'm keeping. ** RA60 (needs to be fixed) Seems to be a platter motor driver problem. No spin-up, IIRC. Two disk pacs included. Note: I strongly suspect this RA60 went with my 11/34A, which I'm keeping, as the box had the UDA50 boardset installed and of which was up and running next to the 11/750 at the ex-owners' office. So, probably 11/34A-specific software on the pacs. It's RSX-11 v. 4.2 or 4.3 I rather suspect. *Think* I have an extra UDA50 boardset boxed up somewhere. There's a set in the 11/24 I know. Then again, it could have hung off the /24 as it, the RA60 and the /34A were all setting near the 750. Rest of the stuff on this list, except for two RK07s, were crammed into a small storeroom up the hall. ** decwriter I (LA180) page printer. Not checked. ** decwriter II (LA36) printing console. Not checked. ** decwriter III (LA120) (Typical printing console device for the 11/750, et al). Not checked. (BTW: What's the exact differences between the decwriter II and decwriter III ??? I've got no documentation on them.) ** ADM-11 terminals, two units. Not checked (as of yet). ** VT100 terminals & kbds. Two or three units. Working fairly well IIRC. ** DECmagtape system. TS03 drive and TMB11 I/F (together called a TMB11-M system). Mounted in a DEC 6' tall PDP rack (with the purple and magenta trimpiece at the top). TMB11 I/F mounted in a 10.5" BA11 box. Not checked. Has two of the three RL02's mentioned above residing in the rack. Uses 7" dia. tape reels mentioned next. ** tapes 7" size, 800 BPI, about 85 of them ** 7' tall tape storage rack for hanging above tapes. ** RK07 disk pacs, about 20 or so. ** RL01 disk pacs, about 20 or so. Have to sort out some to keep on hand for an RL01 I'm keeping. ** RL02 disk pacs, about 25-30 or so. Same, have to select-out some for one or two RL02s I'm keeping. Here's something from my collection which *must* go because of severe space limitations: ** Tektronix 4015-1 graphics terminal, two units, same as 4014 except includes APL keyboard and 19" screen. I've had these in the collection for 14+ years and they still worked when last checked in '97. RS232 communications. Came out of the old IBM Endicott plant in '84/'85 when they "downsized" (jeeeze, I dislike that word now since I had personally experienced it last year :( ) Kinda big. ** Zenith Z19 terminals, two or three. One I know has defective RS232 chips, other(s) are okay. ** Zenith Z90. Carterphone OEM version. Some additional boards and parts go with it too. Worked, no floppy installed. ** Teletype ASR33 (one or more units). One or more may function. Need relubing/adjustment. ** Bunches of Zenith Z150-series boxen and keyboards. 15 sets I think, in various conditions. I might dredge up some more smaller stuff to toss onto this listing as time allows. There's certainly more to go. I'm waffling on getting rid of my VAX 11/730 which needs mass storage of some sort added and some other minor restoration. It's a small big iron VAX which makes me unsure whether to get rid of it so far. If ya want to contribute a little $$ on top of shipping/packing material costs I sure won't complain! :-) Smaller items could be shipped but the big stuff should be picked up (unless you're prepared to pay the freight costs for it). Phone: 1.716.488.1722 from 08:00 to 20:30 EST. Location: Western NY State, off the NYS Rt 17(very soon to be I-86), just past West side of Jamestown on Rt. 394. Thanks for your interest. Please take it away soon! Regards, Chris -- -- Christian Fandt, Electronic/Electrical Historian Jamestown, NY USA cfandt(a)netsync.net Member of Antique Wireless Association URL: http://www.antiquewireless.org/

26 years, 7 months

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keyboard keys

by lemay＠cs.umn.edu

I'm restoring a TRS-80 model 1, 16K level II basic, cassette tape version (though I dont have a cassette tape player yet, just lots of tape software). Anyways, every key seems to have keybounce problems. These keys are the kind with a rectangular tube which, when depressed, allows two contacts (one flat and one with about 4 prongs) to come into contact with each other. There is a strange mustard-like substance in each key in various places near the contacts. I'm wondering if this yellow stuff is supposed to be there, ie, is it some sort of conductive rust preventative? Is it supposed to be the color of old mustard, or has it seriously decayed in the past 21+ years? Suggestions on how to properly clean/refurbish this to near-new condition would be appreciated. -Lawrence LeMay

26 years, 7 months

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(from usenet) PDP-11 emulator available

by aek＠spies.com

"Bob Supnik's is quite excellent with better support >from the looks of things" What is the status now of Bob's work, now that he has left DEC? I thought I heard that Megan was working on 10 support, for example.

26 years, 7 months

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(from usenet) PDP-11 emulator available

by mrbill＠mrbill.net

Well, for those of us who cant have our own 11/34s, here's hte next best thing: Path: news.onr.com!news-out.cwix.com!newsfeed.cwix.com!newsfeed.tli.de !do.de.uu.net!f.de.uu.net!news.uni-stuttgart.de!news.ruhr-uni-bochum.de!gmd.de !gmdtub!not-for-mail From: Hartmut Brandt <brandt(a)fokus.gmd.de> Newsgroups: alt.sys.pdp11 Subject: Version 2.4 of the p11 PDP-11 emulator Date: 19 Nov 1999 15:04:33 GMT Organization: GMD-FIRST Lines: 49 Message-ID: <813ou1$lp7$1(a)freebsd.first.gmd.de> NNTP-Posting-Host: scotty.fokus.gmd.de User-Agent: tin/pre-1.4-19990805 ("Preacher Man") (UNIX) (FreeBSD/4.0-CURRENT (i386)) Xref: news.onr.com alt.sys.pdp11:644 Version 2.4 of p11 - the Begemot PDP-11 emulator - is available on ftp.fokus.gmd.de:/pub/cats/usr/harti/p11. This release supports the following platforms: FreeBSD 4.0 Sparc-Solaris 2.[5678] Redhat-Linux It will possibly work on FreeBSD [23].* and other Linux variants. To build it you need libbegemot (avalaible in the same location), gcc and gmake. Previous versions also built on BSD/OS and SunOS. A version of the emulator is run on one of our machines. Try one of the following (it may not always be available): telnet scotty.fokus.gmd.de 10000 telnet scotty.fokus.gmd.de 10001 telnet scotty.fokus.gmd.de 10002 telnet scotty.fokus.gmd.de 10003 to get connected to one of the four available terminals. If telnet connects, but this terminal is currently in use, you'll get a short message. You should then try connecting to another port. Once you are online, log into 2.11BSD with username and password guest/guest1. Don't forget to logout, before disconnecting with telnet. Note, that there is an IP connection to the host machine, but not to the outside world (this is due to IP routing restrictions in out network). The current implementation emulates a KDJ11A, one or more RLV12, RHV??, RK11 disk controllers, a boot ROM, one or more KL11A controllers, on FreeBSD and Linux a DEQNA ethernet adapter, a read-only TM11 tape and a standard line printer interface. A boot ROM (with source code) to boot from RL/RK and RP discs is included. On a 450MHz Pentium-III a full 'make world install' of 2.11BSD takes around 6 hours, which is several times faster than a real PDP. Floating point performance is even higher. The emulator hast tested with 2.11BSD, RSX and RSX-PLUS, RT V4, V[4567]-Unix and XXDP. Enjoy, Harti B. Brandt -- harti brandt, http://www.fokus.gmd.de/research/cc/cats/employees/hartmut.brandt/private brandt(a)fokus.gmd.de, harti(a)begemot.org

26 years, 7 months

3
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Classic Hardware Documentation Project

by edick＠idcomm.com

It seems to me that there are cases such as government funded privately (by contract) generated documents in which ownership of the information is public, but ownership of the document itself, i.e. the layout, text formatting, etc, is property of the party or parties who generate and print it. In the case of hardware, the information is part of a patent, not part of the document in which it is presented, therefore subject to prevailing patent law not copyright. This, like most legal matters, is probably subject to the whim of whatever court your adversary manages to get to hear the matter if you don't beat him to the punch, however, until such time as superior court decisions etch it in firmer material. Dick -----Original Message----- From: Hans Franke <Hans.Franke(a)mch20.sbs.de> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Friday, November 19, 1999 12:05 PM Subject: Re: Classic Hardware Documentation Project >> Public Domain? Not if there's any indication of a copyright on them. > >> That disclaimer you plan to write will not cut it if there is a copyright >> on the documents. Very few documents could be considered PD unless they did >> not have a specific copyright notice OR if there is a general specific >> release given by the copyright holder to PD OR the copyright holder gives >> *you* permission to hang it out on your website for the public to see with >> a notice stating the copyright holder still retains copyright. Recently >> revised copyright laws make *everything* copyrighted nowadays. > >ALso you may have to take into account that other countries may have >complete different Copyright laws. For example, German law defines >three complete different positions within: >a) The Copyright is strictly limited to natural persons. No company > or whatsever may hold a copyright. Also a person is _unable_ to > sell this right. If you are issueing some work, it's yours until > the end of time. Business is still not restricted, since you are > entiteled to sell comerial usage of your work on a royality base. > These comercial right are also only valid for a limited time beyond > your lifespan. >b) To be copyrighted a pice of work has to reach a 'non trivial level'. > So a simple note may or may not be copyrighted - even a book may not, > althrough based on regular court decisions it's hard to do this. >b) There is no thing like Public Domain. Every work (if it reaches a > defined level) is copyrighted. It is just impossible to give up your > copyright (like it's impossible to give up your human rights - well > basicly the same idea). You may choose not to use your right and > pursue violators, but never give up your basic copyright. > >Well, this isn't ideal world, so in every days business the situation >is the same. > >Gruss >H.

26 years, 7 months

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donation of computer

by stevejaskoski＠hotmail.com

To whoever may be interested: Would anyone be interested in a donation of a 286 AT clone, equipped with a 20MB hard drive, 5 1/4-in floppy, and Samsung monochrome monitor? The machine no longer operates, so it may be of interest only as a museum piece representative of a common desktop computer of the mid-1980s. If anyone is interested, please reply to my email address below. Sincerely, Steve Jaskoski stevejaskoski(a)hotmail.com ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

26 years, 7 months

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a little more info (was: going soon...)

by yakowenk＠cs.unc.edu

I've now got a little more info about those machines in Woodbridge VA. Here is an excerpt from the e-mail: > If you have one or two people that are serious about this, that would be ok, > but maybe not a dozen.... I looked around a bit on Friday and the DEC is a > PDP 11/34, there are several old IBM (and other ) pc's, printers (atleast 2 > NEC spinwriters and other Oki, epson and Lord knows what else) and boxes & > boxes of old software. Boxes of old boards.... just a plethora of fun, sorta > like going thru Grammas attic... Unfortunately, it sounds like mostly PC stuff. And he does not want to deal with a dozen different people. So, I'd like to choose two designated information-collectors to meet at the warehouse (or factory, or whatever it is) and make a list of what's there. If these things are really going for free, we'll want to work out a way of avoiding conflicts, so nobody feels cheated. I suggested that this guy may want to take offers as a way of resolving it, but I don't know if he'll do that. If he does, I recommend bidding _low_, since he wasn't planning to make money out of this. I expect he will choose a date in the first weekend of December for viewing the heap. (He will be out of town this weekend.) If you want to volunteer to be on the info-collection team, let me know. If I get more than two, I'll choose by rolling dice. If a chosen person has to back out, I'll roll the dice again. Also, after this, I will be sending only to the list of people who have expressed an interest, not to the entire classiccmp list. If you want to be kept informed, and are seeing this only through the classiccmp mailing list, you need to let me know to add you to my own list of interested people. Cheers, Bill.

26 years, 7 months

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PDP-8/m !!!!

by aek＠spies.com

"PDP-14 Programmable Controller "

26 years, 7 months

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New finds and some h-11 help

by dogas＠leading.net

>I don't suppose you have a modification to prevent this do you? :) Nevermind, I found the reference to the H780... >Mike: dogas(a)leading.net > > >

26 years, 7 months

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New finds and some h-11 help

by dogas＠leading.net

From: Allison J Parent <allisonp(a)world.std.com> >ODT, yes... What are the commands available? And where can I find the boot sequences? Which is kindofa moot point right now because I don't have an os disk. ;( And what are all the device names? Thanks yet again, - Mike

26 years, 7 months

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New finds and some h-11 help

by dogas＠leading.net

From: Allison J Parent <allisonp(a)world.std.com> <snip> thanks, >Watch out for the PS, the heath design was a switching low voltage design >and tended to fry itself. I don't suppose you have a modification to prevent this do you? :) > >Allison > Thanks, Mike: dogas(a)leading.net

26 years, 7 months

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Xerox D-series workstations

by yoda＠isr.ist.utl.pt

>>>>> "Tony" == Tony Duell <ard(a)p850ug1.demon.co.uk> writes: Only yesterday I dear the pdf's of the Daybreak tech ref manual (cited in this thread)! It was frustrating because althought it corroborated everything I've discovered, it did not explained what I have not yet discovered, namely the KEYBOARD CODES!!! Does anyone know the actual keyboard codes? I guess this is the big question right now. Tony> What are you using for a monitor? At a quick glance, the Tony> Daybreak monitor has ECL inputs for sync and video, and no Tony> idea what the scan rate is.. I don't recall the excat values, but I got from a digital osciloscope, the following values: HSYNC: 28kHz VSYNC: 76Hz I have a mono monitor with HSYNC at 15kHz and VSYNC at 50Hz, which I was able to hack (!) in order to sync to the above values. I use a simple transistor buffer to convert from the ECL output to the 75OHM load of the monitor. I can give you further details on this if you want. Cheers, -- *** Rodrigo Martins de Matos Ventura <yoda(a)isr.ist.utl.pt> *** Web page: http://www.isr.ist.utl.pt/~yoda *** Teaching Assistant and MSc Student at ISR: *** Instituto de Sistemas e Robotica, Polo de Lisboa *** Instituto Superior Tecnico, Lisboa, PORTUGAL *** PGP fingerprint = 0119 AD13 9EEE 264A 3F10 31D3 89B3 C6C4 60C6 4585

26 years, 7 months

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Supnik simulator for PDP11 mods (Was RE: PDP-11 emulator available)

by classiccmp＠mrynet.com

The recent interest for simulators/emulators on this list has prompted me to share publically the modifications I've made to the Supnik 2.3d simulator. It is available at: ftp://ftp.mrynet.com/pub/operatingsystems/simulators/sim2.3d+BB1.tar.gz Others who have already seen the modified work from me will have known this file as "sim2.3e.tar.gz." I've changed the distribution file name to prevent confusion with any official distribution that might perhaps follow from Mr. Supnik. There are regular (daily) minor changes to this as I clean it up and verify portability to other platforms. My interest in making modifications were for the same reason I've seen posted about the Supnik emulator: limited serial line support. Below is a summary of my work. Please email me any impressions, suggestions, requests and additional modifications. Kudos to Mr. Supnik for his extremely understandable and workable simulator. Cheers, -skots --------From the top-level README-------- From: Scott G. Taylor September 4, 1999. This is the Supnik Emulator for the Nova, IBM 1401 and DEC PDP 8, 11, and the 18b family PDPs 1, 4, 5, 7, 9 and 15. A directory exists for each of the models where an executable is created. (Except for the PDP 1, all the 18b CPUs are handled by the pdp18b executable coding). Current copyright information is contained in the file COPYRIGHT. The original copyright and documentation are contained in the file 'doc/simh_doc.txt'. Additions to the original Supnik 2.3d distribution: A utility program called `xtapeutil' has been added to the utils/ directory. This program allows you to interactively read and write tape images in the format used by the emulator. You can create tapes from individual files, or from "tape log" mapped images. The generated images have been tested extensively and found to work with all bootable tapes for RSX, RSTS and UNIX operating systems. It is also currently being reworked to aide in transferring real-tape data to simulator-format images, as well as handling labelled real- and simulated-tapes. Summary of modifications: The only modifications to the original source code are in the PDP-11 simulator version. With the exception of reorganisation of code into discrete directories for each simulated processor version, no other code has been modified. The only exception is a small modification to allow adjustment of the CLK timing in simulators which utilise a clock (in common/scp.c). Additionally, a structure of makefiles, compatible with BSD and GNU make, has been added to facilitate simulator builds. The PDP-11 code was modified in the following ways: o Addition of a 4-line DL-11 driver (pdp11_dl.c). o Removal of the stddev KL11 code. The console KL11 functionality has been assumed by the pdp11_dl.c DL11 code. The console line, however, can be reimplemented by defining -DUSEKL in the pdp11 Makefile. o Work-In-Progress on a 4/8-line DZ-11 driver. o A utility program, called 'netline' has been created to allow the simulated DL-11 serial lines to be accessible via TCP TELNET protocol. See README_pdp11 for more details. Building the simulators:

26 years, 7 months

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VT220's available in Kansas City

by mmcfadden＠cmh.edu

I have 3 VT220's with keyboards that are available. I'm not sure the keyboards are vintage VT220 but they are DEC. 2 VT220-AC white screen 1 VT220-BC green screen They are not in great shape they were manufactured in 1985-1986 and have been in use in our microbiology lab. They work!!! If you pay shipping and packing they are yours. If you are close we can work out other means. Mike mmcfadden(a)cmh.edu

26 years, 7 months

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