test-drb April 2001

test-drb@ccmp.vtda.org

251 participants
669 discussions

by pete＠dunnington.u-net.com

On Apr 6, 12:53, Mike Ford wrote: > >> Are you thinking of the Pertec magnetic tape interface? I > >> have a Cifer front-loading half-inch magtape drive that > >> (I'm told) has the Pertec interface. It has two large > >> 50-way ribbon cables coming out of the back. > > One of the people on another list was asking about a "early SCSI" cable > that used 2 x 50pin ribbon cables on a hard drive. Was there such a SCSI, > or is it likely he has a pertec drive? Much more likely Pertec than SCSI. Original SCSI, and SASI before it, are 50-wire interfaces. However, if he means that an external box had 2 x 50-pin connectors, it could be SCSI; they usually have two sockets so you can daisy-chain them, or plug in a terminator on the last box. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

24 years, 2 months

pertec interface

by vhmasi＠conexion.com.py

I' looking for data sheet of the PERTEC interface, electrical and timing caracteristics thanks !!!! VH

24 years, 2 months

pertec interface

by Innfogra＠aol.com

In a message dated 4/6/01 10:20:03 AM Pacific Daylight Time, John.Honniball(a)uwe.ac.uk writes: > Was there ever a PC > ISA-bus card for this? Yes, there was but I don't remember who made it. I had a customer who bought tape drives from me. He brought over a PC (probably a 286) with an ISA card Pertec interface. We tested drives with it till he found the ones he liked. Worked well. Paxton Portland, OR

24 years, 2 months

CDP-1802s update

by ewy＠southwind.net

Ok, the reservation list now consists of: Dave McGuire Alex Knight Pete Turnbull Ethan Dicks Mike Haas Robert Cobbins Tony Eros Mike Cheponis Chandra Baipai Richard Cini I now have about 50 parts spoken for, which leaves about 7. A couple people have asked for 10 chips, and if there's still demand after I run out I might ask them if they'd be satisfied with fewer so more people can get some. I sorted all the parts and it turns out that five of them are 1802CE and the rest are BCE. Does anybody know the difference? My databook doesn't cover the BCE. Some people have asked for some CE and some BCE parts and it would be nice to know how to divide them up fairly (and whether or not I would want to keep any of the CEs for myself :) I probably won't get around to dividing them up and packaging them till some time early next week. At that point, I'll get back in touch with everybody on the list to confirm and work out the shipping and payment details. JCE -- Joel Ewy spamthis_ewy(a)southwind.net http://www2.southwind.net/~ewy

24 years, 2 months

ADB bus and S-video

by lgwalker＠look.ca

In fooling with my Mac PM7100av and AudioVision monitor I noticed that the Apple ADB connector and the standard s-video connector are the same. Any data on this ? And does it mean that a cheap s-video cable could be used in place of relatively expensive(Apple like IBM ain't cheap) ADB cables ? larry Reply to: lgwalker(a)look.ca

24 years, 2 months

CDP-1802 Bonanza

by ewy＠southwind.net

Here's the list of people who've contacted me so far requesting CDP-1802s from my stash (in order received): Dave McGuire Alex Knight Pete Turnbull Ethan Dicks Mike Haas for a total of 24 parts. I hope I haven't missed anybody. I think I'll keep about 5 of the original 62. So there would be about 33 still unspoken for. I couldn't stand it anymore yesterday afternoon, and went to my folks' place to dig them out and ended up hauling home a ton of old computer junk that I already don't have room for in my basement. But my dad, being as much of a pack rat as I am, was glad to have more space for his antique engines. It turns out that I didn't "RC", and they're in the plastic package instead of ceramic. Most of them are CDP-1802BCE, but some are CDP-1802CE. I'm sure there's some joke in there about how old these things are, but I'll leave the actual punch line as an exercise for the reader. I rediscovered an RCA databook that I found some time after the original haul, and have almost forgotten about already, that has info on the whole CDP-18XX range, plus some development systems, including the COSMAC Microboard Computer Systems. I haven't looked too closely, but >from a cursory glance, it would appear that it has complete schematics for all kinds of boards for this system, from the CPU board to RAM, ROM, battery-backed RAM, UART, display, D/A, and so on. It truly inspires awe. Anyway, the CDP-1802CE is listed, but the BCE isn't. The 1802CE is for temperatures ranging from -40 - +85 deg. C. The 'C' suffix (infix?) has a "recommended voltage range" of 4-6.5 volts. The 1802 ranges from 4-10.5 volts. The 'E' suffix specifies the plastic case, while 'D' would be ceramic. But I can't tell from the documentation I have what the 'B' infix would do to it. Tonight I'll sort them into BCE and CE and post exactly how many of each I have. -- Joel Ewy butcherspam_ewy(a)southwind.net http://www2.southwind.net/~ewy

24 years, 2 months

E11 & RT11v02

by mbg＠world.std.com

also... MSCP support didn't come into RT until V5, and the RQDX3 (and hence the RX33s) weren't really supported until V5.2 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 KB1FCA | +--------------------------------+-------------------------------------+

24 years, 2 months

E11 & RT11v02

by mbg＠world.std.com

So you actually have a distribution of RT V02? I'd like to get a copy from you for my archives. Anyway, maybe what we need is a copy of the boot blocks for various devices so that they can simply be layed down in the disk image (using a very simple program) on block 0. Actually, I think it might be a little difficult with a version of RT that old, simply because the split between the monitor and the device drivers had not yet been made, so you had to build a monitor which included the devices you wanted it to have, and built to boot using a specific handler. This was back in the days of DXMNFB and RKMNFB which were the monitors for RT-11 FB on an RX01 and RT-11 FB on an RK05, respectively. Megan

24 years, 2 months

E11 & RT11v02

by oliv555＠arrl.net

ok, slightly OT. Transferring the os was a snap since the emulator will read my 11/83's RX33s directly. But since RT11v02 does not recognize the rx33 I could only transfer the files and have not been able to bootstrap the emulated rk05. putr.com's boot command seems to work only with post-version2 os's, and the e11 docs don't seem to cover this. Perhaps e11 wont do ver 2? I suppose I could try to locate a 8" drive to strap onto the pc (to boot one of my rx01s) This is my first try with e11 so don't know all the ins-outs yet. Anyone tried rt-v02 on this emulator? Any hints would be appreciated thanks..... nick

24 years, 2 months

Teledisk not working

by jeff.kaneko＠juno.com

On Wed, 04 Apr 2001 07:55:00 -0700 Bruce Lane <kyrrin(a)bluefeathertech.com> writes: > Joe, and other Teledisk group buy participants, > > I've got some bad news. It appears that, within the last > year or two, Sydex has completely sold off the rights to Teledisk, and the > product itself, to a company called Forensics International. FI's web page > clearly states that they will sell only to law enforcement agencies and > Fortune-1000 companies that can show a need for the software. Nazi facist bastards! I'll bet there's a *conspiracy* at work here! (Where's Fox Mulder when you need him?) These assholes even claim that: "TeleDisk was developed to assist the U. S. Treasury Department in the processing of computer evidence tied to floppy diskettes." Does anybody know if this is *true*?! I always thought it was developed to distribute software via BBS's (and other electonic means). Rrrrrrrr. Now I'm pissed. Jeff ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/tagj.

24 years, 2 months

Ever take a MicroVax through the car wash??

by pete＠dunnington.u-net.com

On Apr 4, 15:39, Will Jennings wrote: > Errm, since I'm assuming you're talking guns here, I'd imagine the vacuum > stands a good chance of not being operable afterwards, too! Apparently it was OK. Actually, they were CCI small pistol primers which are a little more sensitive than Winchester ones, but I used a little poetic license because I thought more people would realise what I meant. >From what my friend Mick tells me, some of them went off as they hit the metal innards of the vacuum (rather than the brushes). I believe it was a pretty noisy operation, though! Richard mentioned that Winchester primers come in a flat plastic block; CCI ones come in a small subdivided tray, about half the size of the Winchester one. They're not individually compartmentalised like the Winchester ones and tend to fall out rather easily. Mick had already dropped most of them on the floor once, and picked them all up by hand. When he did it a second time he just decided that the vacuum cleaner provided an easier solution. For those who've not seen them, a tray of primers is about 2" square, and holds 100 small round objects, 0.17" in diameter. > Reminds me of my > mom's friend's mother, who quit vacuuming forever after she mistakenly > vacuumed up a bullet.. scratch one vacuum cleaner! Ow! I'm surprised the round went off, though. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

24 years, 2 months

Fwd: Old Apple CPU's

by owad＠applefritter.com

Reply to the orignal sender, not me. That said, I could use a couple Mac monitor cables if anybody gets these. Tom ---------------- Begin Forwarded Message ---------------- Subject: Old Apple CPU's Date Sent: Thursday, April 5, 2001 10:01 AM From: Christman, Karla <KChristman(a)Brazosport.isd.tenet.edu> To: 'owad(a)applefritter.com' <owad(a)applefritter.com> Do you know anyone in the Houston, Texas area that might be interested in old Apple computers, monitors, parts and cables. Karla Christman Coordinator of Media Services Brazosport Independent School District Voice (979) 265-6181 x 232 and 266-2451 Pager (979) 235-4675 ----------------- End Forwarded Message ----------------- Applefritter www.applefritter.com

24 years, 2 months

HP 3388 Integrator?

by dburrows＠netpath.net

It is for a Gas or liquid Chromatrograph. It communicates to the GC via HPIL. ( Serial 2 wire loop) Most have been replaced with PC based data systems. Dan -----Original Message----- From: Jeffrey S. Sharp <jss(a)ou.edu> To: ClassicCmp Mailing List <classiccmp(a)classiccmp.org> Date: Wednesday, April 04, 2001 9:19 PM Subject: HP 3388 Integrator? >Yesterday, while prowling through the University of Oklahoma surplus shop, >I found a HP 3388 Integrator. It looked vaguely computerish, with ports >for a terminal and tape, and a power switch with a label like "memory >contents zeroed when set to off". The only relevant thing returned by a >quick Google search for "hp 3388 integrator" is this page: > >http://www.alphaomegatech.com/datahint.htm > >Have I found anything interesting (for the $10 it costs)? > >-- >Jeffrey S. Sharp >jss(a)ou.edu

24 years, 2 months

IBM ScanMaster

by xds_sigma7＠hotmail.com

Well, I'm not saying I'm looking for it for a reasearch project, but I'd definetly love a scanmaster, also need a system/34... system/88 would be nice, as would an 8130, 3790, or a 7171.. Will J _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

24 years, 2 months

Teledisk not working

by fmc＠reanimators.org

Jeffrey l Kaneko <jeff.kaneko(a)juno.com> wrote: > "TeleDisk was developed to assist the U. S. Treasury Department > in the processing of computer evidence tied to floppy diskettes." > > Does anybody know if this is *true*?! I always thought it was > developed to distribute software via BBS's (and other electonic > means). ObAOL: Me Too. Seriously, I thought the idea was to be able to copy a diskette to an image file that could be transferred via other means and then copied back to a diskette for use at the receiving end. The image file was mostly opaque to the user(s). I'm not sure how this helps the Treasury Department, unless they're using it to ship evidence-diskette images back to an FBI agent in the J. Edgar Hoover building who knows how to work the FBI's one copy of XenoCopy to go trawling through the reconstitued diskette for files. I have dim memories from Lasnerian times of netnews articles posted by and in response to people trying to exchange RX50 images via Teledisk; the observation made was that doing this required certain versions of Teledisk and/or certain types of floppy drives. And I think that all this angst is amusing in light of today's "Rhymes With Orange" comic strip. If you want to see the strip in your gooey webulator, wait two weeks, it'll be up at <http://www.rhymeswithorange.com/>. Those of us who get it with our newspaper's comics page can have immediate gratification. Oh, all right, I'll spoil it. The punch line is "Except for computers, which no longer read floppy disks." Perhaps the author is one of those people who thinks "computer" means "Macintosh, late model". -Frank McConnell

24 years, 2 months

Synchronized oscillation (was re: IBM ScanMaster)

by Robert_Feldman＠jdedwards.com

I just ran across a reference to synchronized pendula in the latest "Wired" magazine (March 2001, p. 58). I did a search for the work the article mentions, which lead to the following site: http://www.gtalumni.org/news/magazine/spr97/rhythms.html. The following is >from this site: "The phenomenon was described in 1665 by the Dutch physicist Christiaan Huygens, who placed two pendulum clocks side by side on a wall. Within a short time, the pendulums were swinging in perfect synchrony. He altered the movement of one pendulum, but within a half hour the swinging weights had regained synchrony. When one of the clocks was moved to another wall, they gradually fell out of step." Robert A. Feldman Robert_Feldman(a)jdedwards.com

24 years, 2 months

CDC disk R/W heads avaliable.....

by jos.mar＠bluewin.ch

Folks, A recently acquired ASR33 came with an assorted sets of spares. Part of the spares were some 196x vintage Control Data disks R/W heads which are of limited interest to me.. They are available to whoever might need them for the cost of shipping from Zurich, Europe ) Jos Dreesen

24 years, 2 months

Teledisk not working

by pete＠dunnington.u-net.com

On Apr 5, 5:31, Jeff Hellige wrote: > >I read "Hacker Crackdown" > >years ago and can't remember if it describes those particular raids. > > I believe it does go into detail on Sundevil. The full book > is available in AmigaGuide format, though I no longer recall where I > saw it posted...it's been a couple of years since I saw that version. It does go into some detail. I bought the book when it came out. The electronic version can be found at http://www.eff.org/pub/Misc/Publications/Bruce_Sterling/Hacker_Crackdown/ which also has the extra "Three Years Later" part . -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

24 years, 2 months

[Q] Xerox DayBreak 5.25" floppy binary format

by yoda＠isr.ist.utl.pt

Hi. What is the binary format of the floppy disks that the Xerox DayBreak workstation uses? And, by the way, how about the format for the tapes (QIC?)? Cheers, -- *** Rodrigo Martins de Matos Ventura <yoda(a)isr.ist.utl.pt> *** Web page: http://www.isr.ist.utl.pt/~yoda *** Teaching Assistant and PhD 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

24 years, 2 months

Teledisk not working

by rigdonj＠intellistar.net

Robert, Thanks for your comments but I don't think the problem is the disks. I've also tried Tektronix 8160 disks, Osborne 1 and Osborne Executive disks, Morrow disks and some others and I get the same results with all of them. The only disks that I've ever been able to archive are MS-DOS disks! Joe At 09:54 AM 4/4/01 -0600, you wrote: >I have a copy of Teledisk, but have not used it, so my comments might not be >on the mark. But, I have used other disk format copy programs and know that >they have trouble copying Kaypro disks unless the source disk was formated >on the target (non-Kaypro) computer. Apparently the Kaypro (and also Zorba) >format had some strange features. Might the unusual formatting be the source >of Joe's problems? > >Robert Feldman >Robert_Feldman(a)jdedwards.com > >-----Original Message----- >From: Bruce Lane [mailto:kyrrin@bluefeathertech.com] >Sent: Wednesday, April 04, 2001 9:55 AM >To: Joe >Cc: classiccmp(a)classiccmp.org >Subject: Re: Teledisk not working > > >At 10:10 04-04-2001 -0500, you wrote: > >>Bruce, >> >> I just tried Teledisk again with the SAME results. This time I used two >>known good Kaypro 2 disks. Teledisk copied them to files with no >>complaints. TDChck said that the files were OK. However each file was only >>281 bytes in size. When I tried to make disks from the files it said that >>the data had a CRC error. > ><snip> >

24 years, 2 months

What a Scanmaster is!

by xds_sigma7＠hotmail.com

OK, here's the scoop on the original Scanmaster, not some lame-o PC-attached crud... 8815 SCANMASTER I - WITHDRAWN (NO LONGER AVAILABLE) PURPOSE o For capturing and transmitting noncoded documents to an 4300, S/370, 303X, or 308X system. o For capturing and transmitting noncoded documents directly to another Scanmaster I. o For printing noncoded documents. o For printing formatted text documents. The Scanmaster I is an SNA/SDLC device designed for system-attached operation and terminal-to-terminal operation. It attaches to 4300, S/370, 303X, and 308X processors over switched or nonswitched communication facilities at speeds up to 9600 bps. It will communicate directly with another remote Scanmaster I over a public switched telephone network or private switched or non-switched voice facilities at speeds up to 9600 bps. I got that from the IBM sales manual... I'd love to have one too.. Will J _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

24 years, 2 months

PDP-11 BBS

by broth＠heathers.stdio.com

I am looking for some ideas for putting one of my DEC machines on the net. I used to run a Unix bbs years ago on a 386 running Xenix and XBBS and really enjoyed it a lot. I noticed that the source is still around for that program on the net. This is what I have: 11/23+ running RT-11. I have the TCP-IP package for it and I beleive I have everything I need to make it work. 11/53 running RSX but I can probably coax BSD on it without a problem. VAXstation II running VAX/VMS 4.4 but I also have netBSD for it. I know nothing about VMS. I want to make these machines available but at the same time I want to batten down the hatches so they are not wide open for troublemakers. I personally would like to put the 11/23+ on the net. If I could make that work, then it would be easy to duplicate it on my 11/34 and put that on the net. These would be running behind my IP masq'ed Linux router. I could port forward Telnet and FTP services. Maybe even HTTP if I could get that working on the RT-11 box. Right now thats going to my current web server. Any ideas? Brian.

24 years, 2 months

Teledisk still supported! (whew!)

by kyrrin＠bluefeathertech.com

At 10:10 04-04-2001 -0500, you wrote: >Bruce, > > I just tried Teledisk again with the SAME results. This time I used two >known good Kaypro 2 disks. Teledisk copied them to files with no >complaints. TDChck said that the files were OK. However each file was only <snip> OK! Great news waiting in my inbox when I came home. First: Joe, I've forwarded the description you E-mailed me to both Sydex and Forensics Intl. And that leads into the second part: F-I is perfectly willing to pick up support for those involved in the group buy. The fact that we were legacy customers of Sydex is what did it. So, everyone who bought Teledisk can start breathing again. We're still supported. Joe, I'll forward whatever answer I get back to you. It is also possible that F-I support may open a dialogue directly with you. I did offer them that option, and I gave them your E-address. Thanks much. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner and head honcho, Blue Feather Technologies http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com Amateur Radio: WD6EOS since Dec. '77 (Extra class as of June-2K) "I'll get a life when someone demonstrates to me that it would be superior to what I have now..." (Gym Z. Quirk, aka Taki Kogoma).

24 years, 2 months

Ever take a MicroVax through the car wash??

by pete＠dunnington.u-net.com

On Apr 4, 13:22, Iggy Drougge wrote: > Chuck McManis skrev: > > >At 06:36 PM 4/3/2001 -0500, The Chad wrote: > >>Kidding.... Actually I just took the plastic case from my 3400 up the > >>do-it-yourself car wash. I used the engine/tire cleaner on it, and then > >>Comet Cleanser. It turned out nicely..... it is drying now. > > >That's a great idea. I have done the boards in the dish washer trick (they > >come out nice and clean, but sometimes lose their labels) > Wouldn't they melt or get disformed in the dishwasher? Fibreglass doesn't melt easily :-) I've put quite a few PCBs through our dishwasher (well it's "ours" when I want to clean PCBs, and my wife's when it's dinner plates). It's amazing how many useful pieces of equipment are disguised as domestic appliances: the machine for cleaning keyboard keycaps and shell cases does an excellent job of washing clothes, while the tumbling machine for drying them off also works for socks and shirts. The device in the kitchen for baking small spray-painted articles can be used for pizza and muffins. And so on... -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

24 years, 2 months

For Sale: PDP-8/i w/ Paper Tape

by aw288＠osfn.org

Due to my computing interests becoming very much centered in the IBM world, and also due to 2 tons of Big Blue stuff coming shortly, I have decided to sell off a PDP-8/i. I promised the original seller that I would not Ebay the thing, so I am keeping it to only a few lists. The machine looks like an 8K PDP-8/i, with a highspeed paper tape reader/puch (PCmumblefoo). It looks complete, although I have not checked it 100 percent. Certainly the hard-to-find parts are there (namely the panel and the two core stacks). The rack is not original, and frankly, is ugly. The power supply seems very kludged in (although it looks DEC). This ain't a plug and play 'puter, folks. It needs a cleanup and a tune up. I have a doc set (not included, but I can copy (have to copy one for Will, anyway). Send me an offer if interested. I am located in New York, near Connecticut. No shipping on this item - either you pick up, or I deliver within a few hundred miles (Boston, Washington, maybe Cleveland or even Chicago) for my expenses. Some pictures: http://www.bestweb.net/~toober/images/PDP8I.jpg http://www.bestweb.net/~toober/images/PDP8I.upper.jpg http://www.bestweb.net/~toober/images/PDP8I.inside.jpg http://www.bestweb.net/~toober/images/PDP8I.fc.jpg William Donzelli aw288(a)osfn.org

24 years, 2 months

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test-drb April 2001